diff options
Diffstat (limited to 'src/gui_gtk_x11.c')
| -rw-r--r-- | src/gui_gtk_x11.c | 6589 |
1 files changed, 6589 insertions, 0 deletions
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c new file mode 100644 index 000000000..e36c85827 --- /dev/null +++ b/src/gui_gtk_x11.c @@ -0,0 +1,6589 @@ +/* vi:set ts=8 sts=4 sw=4: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * Porting to GTK+ was done by: + * + * (C) 1998,1999,2000 by Marcin Dalecki <dalecki@evision.ag> + * + * With GREAT support and continuous encouragements by Andy Kahn and of + * course Bram Moolenaar! + * + * Support for GTK+ 2 was added by: + * + * (C) 2002,2003 Jason Hildebrand <jason@peaceworks.ca> + * Daniel Elstner <daniel.elstner@gmx.net> + */ + +#include "vim.h" +#ifdef FEAT_GUI_GNOME +/* Gnome redefines _() and N_(). Grrr... */ +# ifdef _ +# undef _ +# endif +# ifdef N_ +# undef N_ +# endif +# ifdef textdomain +# undef textdomain +# endif +# ifdef bindtextdomain +# undef bindtextdomain +# endif +# if defined(FEAT_GETTEXT) && !defined(ENABLE_NLS) +# define ENABLE_NLS /* so the texts in the dialog boxes are translated */ +# endif +# include <gnome.h> +# include "version.h" +#endif + +#if !defined(FEAT_GUI_GTK) && defined(PROTO) +/* When generating prototypes we don't want syntax errors. */ +# define GdkAtom int +# define GdkEventExpose int +# define GdkEventFocus int +# define GdkEventVisibility int +# define GdkEventProperty int +# define GtkContainer int +# define GtkTargetEntry int +# define GtkType int +# define GtkWidget int +# define gint int +# define gpointer int +# define guint int +# define GdkEventKey int +# define GdkEventSelection int +# define GtkSelectionData int +# define GdkEventMotion int +# define GdkEventButton int +# define GdkDragContext int +# define GdkEventConfigure int +# define GdkEventClient int +#else +# include <gdk/gdkkeysyms.h> +# include <gdk/gdk.h> +# ifdef WIN3264 +# include <gdk/gdkwin32.h> +# else +# include <gdk/gdkx.h> +# endif + +# include <gtk/gtk.h> +# include "gui_gtk_f.h" +#endif + +#ifdef HAVE_X11_SUNKEYSYM_H +# include <X11/Sunkeysym.h> +#endif + +/* + * Easy-to-use macro for multihead support. + */ +#ifdef HAVE_GTK_MULTIHEAD +# define GET_X_ATOM(atom) gdk_x11_atom_to_xatom_for_display( \ + gtk_widget_get_display(gui.mainwin), atom) +#else +# define GET_X_ATOM(atom) ((Atom)(atom)) +#endif + +/* Selection type distinguishers */ +enum +{ + TARGET_TYPE_NONE, + TARGET_UTF8_STRING, + TARGET_STRING, + TARGET_COMPOUND_TEXT, + TARGET_TEXT, + TARGET_TEXT_URI_LIST, + TARGET_TEXT_PLAIN, + TARGET_VIM, + TARGET_VIMENC +}; + +/* + * Table of selection targets supported by Vim. + * Note: Order matters, preferred types should come first. + */ +static const GtkTargetEntry selection_targets[] = +{ + {VIMENC_ATOM_NAME, 0, TARGET_VIMENC}, + {VIM_ATOM_NAME, 0, TARGET_VIM}, +#ifdef FEAT_MBYTE + {"UTF8_STRING", 0, TARGET_UTF8_STRING}, +#endif + {"COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT}, + {"TEXT", 0, TARGET_TEXT}, + {"STRING", 0, TARGET_STRING} +}; +#define N_SELECTION_TARGETS (sizeof(selection_targets) / sizeof(selection_targets[0])) + +#ifdef FEAT_DND +/* + * Table of DnD targets supported by Vim. + * Note: Order matters, preferred types should come first. + */ +static const GtkTargetEntry dnd_targets[] = +{ + {"text/uri-list", 0, TARGET_TEXT_URI_LIST}, +# ifdef FEAT_MBYTE + {"UTF8_STRING", 0, TARGET_UTF8_STRING}, +# endif + {"STRING", 0, TARGET_STRING}, + {"text/plain", 0, TARGET_TEXT_PLAIN} +}; +# define N_DND_TARGETS (sizeof(dnd_targets) / sizeof(dnd_targets[0])) +#endif + + +#ifdef HAVE_GTK2 +/* + * "Monospace" is a standard font alias that should be present + * on all proper Pango/fontconfig installations. + */ +# define DEFAULT_FONT "Monospace 10" + +#else /* !HAVE_GTK2 */ +/* + * This is the single only fixed width font in X11, which seems to be present + * on all servers and available in all the variants we need. + */ +# define DEFAULT_FONT "-adobe-courier-medium-r-normal-*-14-*-*-*-m-*-*-*" + +#endif /* !HAVE_GTK2 */ + +#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)) +/* + * Atoms used to communicate save-yourself from the X11 session manager. There + * is no need to move them into the GUI struct, since they should be constant. + */ +static GdkAtom wm_protocols_atom = GDK_NONE; +static GdkAtom save_yourself_atom = GDK_NONE; +#endif + +/* + * Atoms used to control/reference X11 selections. + */ +#ifdef FEAT_MBYTE +static GdkAtom utf8_string_atom = GDK_NONE; +#endif +#ifndef HAVE_GTK2 +static GdkAtom compound_text_atom = GDK_NONE; +static GdkAtom text_atom = GDK_NONE; +#endif +static GdkAtom vim_atom = GDK_NONE; /* Vim's own special selection format */ +#ifdef FEAT_MBYTE +static GdkAtom vimenc_atom = GDK_NONE; /* Vim's extended selection format */ +#endif + +/* + * Keycodes recognized by vim. + * NOTE: when changing this, the table in gui_x11.c probably needs the same + * change! + */ +static struct special_key +{ + guint key_sym; + char_u code0; + char_u code1; +} +const special_keys[] = +{ + {GDK_Up, 'k', 'u'}, + {GDK_Down, 'k', 'd'}, + {GDK_Left, 'k', 'l'}, + {GDK_Right, 'k', 'r'}, + {GDK_F1, 'k', '1'}, + {GDK_F2, 'k', '2'}, + {GDK_F3, 'k', '3'}, + {GDK_F4, 'k', '4'}, + {GDK_F5, 'k', '5'}, + {GDK_F6, 'k', '6'}, + {GDK_F7, 'k', '7'}, + {GDK_F8, 'k', '8'}, + {GDK_F9, 'k', '9'}, + {GDK_F10, 'k', ';'}, + {GDK_F11, 'F', '1'}, + {GDK_F12, 'F', '2'}, + {GDK_F13, 'F', '3'}, + {GDK_F14, 'F', '4'}, + {GDK_F15, 'F', '5'}, + {GDK_F16, 'F', '6'}, + {GDK_F17, 'F', '7'}, + {GDK_F18, 'F', '8'}, + {GDK_F19, 'F', '9'}, + {GDK_F20, 'F', 'A'}, + {GDK_F21, 'F', 'B'}, + {GDK_Pause, 'F', 'B'}, /* Pause == F21 according to netbeans.txt */ + {GDK_F22, 'F', 'C'}, + {GDK_F23, 'F', 'D'}, + {GDK_F24, 'F', 'E'}, + {GDK_F25, 'F', 'F'}, + {GDK_F26, 'F', 'G'}, + {GDK_F27, 'F', 'H'}, + {GDK_F28, 'F', 'I'}, + {GDK_F29, 'F', 'J'}, + {GDK_F30, 'F', 'K'}, + {GDK_F31, 'F', 'L'}, + {GDK_F32, 'F', 'M'}, + {GDK_F33, 'F', 'N'}, + {GDK_F34, 'F', 'O'}, + {GDK_F35, 'F', 'P'}, +#ifdef SunXK_F36 + {SunXK_F36, 'F', 'Q'}, + {SunXK_F37, 'F', 'R'}, +#endif + {GDK_Help, '%', '1'}, + {GDK_Undo, '&', '8'}, + {GDK_BackSpace, 'k', 'b'}, + {GDK_Insert, 'k', 'I'}, + {GDK_Delete, 'k', 'D'}, + {GDK_3270_BackTab, 'k', 'B'}, + {GDK_Clear, 'k', 'C'}, + {GDK_Home, 'k', 'h'}, + {GDK_End, '@', '7'}, + {GDK_Prior, 'k', 'P'}, + {GDK_Next, 'k', 'N'}, + {GDK_Print, '%', '9'}, + /* Keypad keys: */ + {GDK_KP_Left, 'k', 'l'}, + {GDK_KP_Right, 'k', 'r'}, + {GDK_KP_Up, 'k', 'u'}, + {GDK_KP_Down, 'k', 'd'}, + {GDK_KP_Insert, KS_EXTRA, (char_u)KE_KINS}, + {GDK_KP_Delete, KS_EXTRA, (char_u)KE_KDEL}, + {GDK_KP_Home, 'K', '1'}, + {GDK_KP_End, 'K', '4'}, + {GDK_KP_Prior, 'K', '3'}, /* page up */ + {GDK_KP_Next, 'K', '5'}, /* page down */ + + {GDK_KP_Add, 'K', '6'}, + {GDK_KP_Subtract, 'K', '7'}, + {GDK_KP_Divide, 'K', '8'}, + {GDK_KP_Multiply, 'K', '9'}, + {GDK_KP_Enter, 'K', 'A'}, + {GDK_KP_Decimal, 'K', 'B'}, + + {GDK_KP_0, 'K', 'C'}, + {GDK_KP_1, 'K', 'D'}, + {GDK_KP_2, 'K', 'E'}, + {GDK_KP_3, 'K', 'F'}, + {GDK_KP_4, 'K', 'G'}, + {GDK_KP_5, 'K', 'H'}, + {GDK_KP_6, 'K', 'I'}, + {GDK_KP_7, 'K', 'J'}, + {GDK_KP_8, 'K', 'K'}, + {GDK_KP_9, 'K', 'L'}, + + /* End of list marker: */ + {0, 0, 0} +}; + +/* + * Flags for command line options table below. + */ +#define ARG_FONT 1 +#define ARG_GEOMETRY 2 +#define ARG_REVERSE 3 +#define ARG_NOREVERSE 4 +#define ARG_BACKGROUND 5 +#define ARG_FOREGROUND 6 +#define ARG_ICONIC 7 +#define ARG_ROLE 8 +#define ARG_NETBEANS 9 +#define ARG_XRM 10 /* ignored */ +#define ARG_MENUFONT 11 /* ignored */ +#define ARG_INDEX_MASK 0x00ff +#define ARG_HAS_VALUE 0x0100 /* a value is expected after the argument */ +#define ARG_NEEDS_GUI 0x0200 /* need to initialize the GUI for this */ +#define ARG_FOR_GTK 0x0400 /* argument is handled by GTK+ or GNOME */ +#define ARG_COMPAT_LONG 0x0800 /* accept -foo but substitute with --foo */ +#define ARG_KEEP 0x1000 /* don't remove argument from argv[] */ + +/* + * This table holds all the X GUI command line options allowed. This includes + * the standard ones so that we can skip them when Vim is started without the + * GUI (but the GUI might start up later). + * + * When changing this, also update doc/gui_x11.txt and the usage message!!! + */ +typedef struct +{ + const char *name; + unsigned int flags; +} +cmdline_option_T; + +static const cmdline_option_T cmdline_options[] = +{ + /* We handle these options ourselves */ + {"-fn", ARG_FONT|ARG_HAS_VALUE}, + {"-font", ARG_FONT|ARG_HAS_VALUE}, + {"-geom", ARG_GEOMETRY|ARG_HAS_VALUE}, + {"-geometry", ARG_GEOMETRY|ARG_HAS_VALUE}, + {"-rv", ARG_REVERSE}, + {"-reverse", ARG_REVERSE}, + {"+rv", ARG_NOREVERSE}, + {"+reverse", ARG_NOREVERSE}, + {"-bg", ARG_BACKGROUND|ARG_HAS_VALUE}, + {"-background", ARG_BACKGROUND|ARG_HAS_VALUE}, + {"-fg", ARG_FOREGROUND|ARG_HAS_VALUE}, + {"-foreground", ARG_FOREGROUND|ARG_HAS_VALUE}, + {"-iconic", ARG_ICONIC}, +#ifdef HAVE_GTK2 + {"--role", ARG_ROLE|ARG_HAS_VALUE}, +#endif +#ifdef FEAT_NETBEANS_INTG + {"-nb", ARG_NETBEANS}, /* non-standard value format */ + {"-xrm", ARG_XRM|ARG_HAS_VALUE}, /* not implemented */ + {"-mf", ARG_MENUFONT|ARG_HAS_VALUE}, /* not implemented */ + {"-menufont", ARG_MENUFONT|ARG_HAS_VALUE}, /* not implemented */ +#endif +#if 0 /* not implemented; these arguments don't make sense for GTK+ */ + {"-boldfont", ARG_HAS_VALUE}, + {"-italicfont", ARG_HAS_VALUE}, + {"-bw", ARG_HAS_VALUE}, + {"-borderwidth", ARG_HAS_VALUE}, + {"-sw", ARG_HAS_VALUE}, + {"-scrollbarwidth", ARG_HAS_VALUE}, +#endif + /* Arguments handled by GTK (and GNOME) internally. */ + {"--g-fatal-warnings", ARG_FOR_GTK}, + {"--gdk-debug", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gdk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gtk-debug", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gtk-no-debug", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gtk-module", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--sync", ARG_FOR_GTK}, + {"--display", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG}, + {"--name", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG}, + {"--class", ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG}, +#ifdef HAVE_GTK2 + {"--screen", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gxid-host", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gxid-port", ARG_FOR_GTK|ARG_HAS_VALUE}, +#else /* these don't seem to exist anymore */ + {"--no-xshm", ARG_FOR_GTK}, + {"--xim-preedit", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--xim-status", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gxid_host", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--gxid_port", ARG_FOR_GTK|ARG_HAS_VALUE}, +#endif +#ifdef FEAT_GUI_GNOME + {"--load-modules", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--sm-client-id", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--sm-config-prefix", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--sm-disable", ARG_FOR_GTK}, + {"--oaf-ior-fd", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--oaf-activate-iid", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"--oaf-private", ARG_FOR_GTK}, + {"--enable-sound", ARG_FOR_GTK}, + {"--disable-sound", ARG_FOR_GTK}, + {"--espeaker", ARG_FOR_GTK|ARG_HAS_VALUE}, + {"-?", ARG_FOR_GTK|ARG_NEEDS_GUI}, + {"--help", ARG_FOR_GTK|ARG_NEEDS_GUI|ARG_KEEP}, + {"--usage", ARG_FOR_GTK|ARG_NEEDS_GUI}, +# if 0 /* conflicts with Vim's own --version argument */ + {"--version", ARG_FOR_GTK|ARG_NEEDS_GUI}, +# endif + {"--disable-crash-dialog", ARG_FOR_GTK}, +#endif + {NULL, 0} +}; + +static int gui_argc = 0; +static char **gui_argv = NULL; + +#ifdef HAVE_GTK2 +static const char *role_argument = NULL; +#endif +#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION) +static const char *restart_command = NULL; +#endif +static int found_iconic_arg = FALSE; + +#ifdef FEAT_GUI_GNOME +/* + * Can't use Gnome if --socketid given + */ +static int using_gnome = 0; +#else +# define using_gnome 0 +#endif + +/* + * Parse the GUI related command-line arguments. Any arguments used are + * deleted from argv, and *argc is decremented accordingly. This is called + * when vim is started, whether or not the GUI has been started. + */ + void +gui_mch_prepare(int *argc, char **argv) +{ + const cmdline_option_T *option; + int i = 0; + int len = 0; + +#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION) + /* + * Determine the command used to invoke Vim, to be passed as restart + * command to the session manager. If argv[0] contains any directory + * components try building an absolute path, otherwise leave it as is. + */ + restart_command = argv[0]; + + if (strchr(argv[0], G_DIR_SEPARATOR) != NULL) + { + char_u buf[MAXPATHL]; + + if (mch_FullName((char_u *)argv[0], buf, (int)sizeof(buf), TRUE) == OK) + /* Tiny leak; doesn't matter, and usually we don't even get here */ + restart_command = (char *)vim_strsave(buf); + } +#endif + + /* + * Move all the entries in argv which are relevant to GTK+ and GNOME + * into gui_argv. Freed later in gui_mch_init(). + */ + gui_argc = 0; + gui_argv = (char **)alloc((unsigned)((*argc + 1) * sizeof(char *))); + + g_return_if_fail(gui_argv != NULL); + + gui_argv[gui_argc++] = argv[i++]; + + while (i < *argc) + { + /* Don't waste CPU cycles on non-option arguments. */ + if (argv[i][0] != '-' && argv[i][0] != '+') + { + ++i; + continue; + } + + /* Look for argv[i] in cmdline_options[] table. */ + for (option = &cmdline_options[0]; option->name != NULL; ++option) + { + len = strlen(option->name); + + if (strncmp(argv[i], option->name, len) == 0) + { + if (argv[i][len] == '\0') + break; + /* allow --foo=bar style */ + if (argv[i][len] == '=' && (option->flags & ARG_HAS_VALUE)) + break; +#ifdef FEAT_NETBEANS_INTG + /* darn, -nb has non-standard syntax */ + if (vim_strchr((char_u *)":=", argv[i][len]) != NULL + && (option->flags & ARG_INDEX_MASK) == ARG_NETBEANS) + break; +#endif + } + else if ((option->flags & ARG_COMPAT_LONG) + && strcmp(argv[i], option->name + 1) == 0) + { + /* Replace the standard X arguments "-name" and "-display" + * with their GNU-style long option counterparts. */ + argv[i] = (char *)option->name; + break; + } + } + if (option->name == NULL) /* no match */ + { + ++i; + continue; + } + + if (option->flags & ARG_FOR_GTK) + { + /* Move the argument into gui_argv, which + * will later be passed to gtk_init_check() */ + gui_argv[gui_argc++] = argv[i]; + } + else + { + char *value = NULL; + + /* Extract the option's value if there is one. + * Accept both "--foo bar" and "--foo=bar" style. */ + if (option->flags & ARG_HAS_VALUE) + { + if (argv[i][len] == '=') + value = &argv[i][len + 1]; + else if (i + 1 < *argc && strcmp(argv[i + 1], "--") != 0) + value = argv[i + 1]; + } + + /* Check for options handled by Vim itself */ + switch (option->flags & ARG_INDEX_MASK) + { + case ARG_REVERSE: + found_reverse_arg = TRUE; + break; + case ARG_NOREVERSE: + found_reverse_arg = FALSE; + break; + case ARG_FONT: + font_argument = value; + break; + case ARG_GEOMETRY: + if (value != NULL) + gui.geom = vim_strsave((char_u *)value); + break; + case ARG_BACKGROUND: + background_argument = value; + break; + case ARG_FOREGROUND: + foreground_argument = value; + break; + case ARG_ICONIC: + found_iconic_arg = TRUE; + break; +#ifdef HAVE_GTK2 + case ARG_ROLE: + role_argument = value; /* used later in gui_mch_open() */ + break; +#endif +#ifdef FEAT_NETBEANS_INTG + case ARG_NETBEANS: + ++usingNetbeans; + gui.dofork = FALSE; /* don't fork() when starting GUI */ + netbeansArg = argv[i]; + break; +#endif + default: + break; + } + } + + /* These arguments make gnome_program_init() print a message and exit. + * Must start the GUI for this, otherwise ":gui" will exit later! */ + if (option->flags & ARG_NEEDS_GUI) + gui.starting = TRUE; + + if (option->flags & ARG_KEEP) + ++i; + else + { + /* Remove the flag from the argument vector. */ + if (--*argc > i) + { + int n_strip = 1; + + /* Move the argument's value as well, if there is one. */ + if ((option->flags & ARG_HAS_VALUE) + && argv[i][len] != '=' + && strcmp(argv[i + 1], "--") != 0) + { + ++n_strip; + --*argc; + if (option->flags & ARG_FOR_GTK) + gui_argv[gui_argc++] = argv[i + 1]; + } + + if (*argc > i) + mch_memmove(&argv[i], &argv[i + n_strip], + (*argc - i) * sizeof(char *)); + } + argv[*argc] = NULL; + } + } + + gui_argv[gui_argc] = NULL; +} + +/* + * This should be maybe completely removed. + * Doesn't seem possible, since check_copy_area() relies on + * this information. --danielk + */ +/*ARGSUSED*/ + static gint +visibility_event(GtkWidget *widget, GdkEventVisibility *event, gpointer data) +{ + gui.visibility = event->state; + /* + * When we do an gdk_window_copy_area(), and the window is partially + * obscured, we want to receive an event to tell us whether it worked + * or not. + */ + if (gui.text_gc != NULL) + gdk_gc_set_exposures(gui.text_gc, + gui.visibility != GDK_VISIBILITY_UNOBSCURED); + return FALSE; +} + +/* + * Redraw the corresponding portions of the screen. + */ +/*ARGSUSED*/ + static gint +expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data) +{ + /* Skip this when the GUI isn't set up yet, will redraw later. */ + if (gui.starting) + return FALSE; + + out_flush(); /* make sure all output has been processed */ + gui_redraw(event->area.x, event->area.y, + event->area.width, event->area.height); + + /* Clear the border areas if needed */ + if (event->area.x < FILL_X(0)) + gdk_window_clear_area(gui.drawarea->window, 0, 0, FILL_X(0), 0); + if (event->area.y < FILL_Y(0)) + gdk_window_clear_area(gui.drawarea->window, 0, 0, 0, FILL_Y(0)); + if (event->area.x > FILL_X(Columns)) + gdk_window_clear_area(gui.drawarea->window, + FILL_X((int)Columns), 0, 0, 0); + if (event->area.y > FILL_Y(Rows)) + gdk_window_clear_area(gui.drawarea->window, 0, FILL_Y((int)Rows), 0, 0); + + return FALSE; +} + +#ifdef FEAT_CLIENTSERVER +/* + * Handle changes to the "Comm" property + */ +/*ARGSUSED2*/ + static gint +property_event(GtkWidget *widget, GdkEventProperty *event, gpointer data) +{ + if (event->type == GDK_PROPERTY_NOTIFY + && event->state == (int)GDK_PROPERTY_NEW_VALUE + && GDK_WINDOW_XWINDOW(event->window) == commWindow + && GET_X_ATOM(event->atom) == commProperty) + { + XEvent xev; + + /* Translate to XLib */ + xev.xproperty.type = PropertyNotify; + xev.xproperty.atom = commProperty; + xev.xproperty.window = commWindow; + xev.xproperty.state = PropertyNewValue; + serverEventProc(GDK_WINDOW_XDISPLAY(widget->window), &xev); + + if (gtk_main_level() > 0) + gtk_main_quit(); + } + return FALSE; +} +#endif + + +/**************************************************************************** + * Focus handlers: + */ + + +/* + * This is a simple state machine: + * BLINK_NONE not blinking at all + * BLINK_OFF blinking, cursor is not shown + * BLINK_ON blinking, cursor is shown + */ + +#define BLINK_NONE 0 +#define BLINK_OFF 1 +#define BLINK_ON 2 + +static int blink_state = BLINK_NONE; +static long_u blink_waittime = 700; +static long_u blink_ontime = 400; +static long_u blink_offtime = 250; +static guint blink_timer = 0; + + void +gui_mch_set_blinking(long waittime, long on, long off) +{ + blink_waittime = waittime; + blink_ontime = on; + blink_offtime = off; +} + +/* + * Stop the cursor blinking. Show the cursor if it wasn't shown. + */ + void +gui_mch_stop_blink(void) +{ + if (blink_timer) + { + gtk_timeout_remove(blink_timer); + blink_timer = 0; + } + if (blink_state == BLINK_OFF) + gui_update_cursor(TRUE, FALSE); + blink_state = BLINK_NONE; +} + +/*ARGSUSED*/ + static gint +blink_cb(gpointer data) +{ + if (blink_state == BLINK_ON) + { + gui_undraw_cursor(); + blink_state = BLINK_OFF; + blink_timer = gtk_timeout_add((guint32)blink_offtime, + (GtkFunction) blink_cb, NULL); + } + else + { + gui_update_cursor(TRUE, FALSE); + blink_state = BLINK_ON; + blink_timer = gtk_timeout_add((guint32)blink_ontime, + (GtkFunction) blink_cb, NULL); + } + + return FALSE; /* don't happen again */ +} + +/* + * Start the cursor blinking. If it was already blinking, this restarts the + * waiting time and shows the cursor. + */ + void +gui_mch_start_blink(void) +{ + if (blink_timer) + gtk_timeout_remove(blink_timer); + /* Only switch blinking on if none of the times is zero */ + if (blink_waittime && blink_ontime && blink_offtime && gui.in_focus) + { + blink_timer = gtk_timeout_add((guint32)blink_waittime, + (GtkFunction) blink_cb, NULL); + blink_state = BLINK_ON; + gui_update_cursor(TRUE, FALSE); + } +} + +/*ARGSUSED*/ + static gint +enter_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data) +{ + if (blink_state == BLINK_NONE) + gui_mch_start_blink(); + + /* make sure keyboard input goes there */ + if (gtk_socket_id == 0 || !GTK_WIDGET_HAS_FOCUS(gui.drawarea)) + gtk_widget_grab_focus(gui.drawarea); + + return FALSE; +} + +/*ARGSUSED*/ + static gint +leave_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data) +{ + if (blink_state != BLINK_NONE) + gui_mch_stop_blink(); + + return FALSE; +} + +/*ARGSUSED*/ + static gint +focus_in_event(GtkWidget *widget, GdkEventFocus *event, gpointer data) +{ + gui_focus_change(TRUE); + + if (blink_state == BLINK_NONE) + gui_mch_start_blink(); + + /* make sure keyboard input goes there */ + if (gtk_socket_id == 0) + gtk_widget_grab_focus(gui.drawarea); + + return TRUE; +} + +/*ARGSUSED*/ + static gint +focus_out_event(GtkWidget *widget, GdkEventFocus *event, gpointer data) +{ + gui_focus_change(FALSE); + + if (blink_state != BLINK_NONE) + gui_mch_stop_blink(); + + return TRUE; +} + + +#ifdef HAVE_GTK2 +/* + * Translate a GDK key value to UTF-8 independently of the current locale. + * The output is written to string, which must have room for at least 6 bytes + * plus the NUL terminator. Returns the length in bytes. + * + * This function is used in the GTK+ 2 GUI only. The GTK+ 1 code makes use + * of GdkEventKey::string instead. But event->string is evil; see here why: + * http://developer.gnome.org/doc/API/2.0/gdk/gdk-Event-Structures.html#GdkEventKey + */ + static int +keyval_to_string(unsigned int keyval, unsigned int state, char_u *string) +{ + int len; + guint32 uc; + + uc = gdk_keyval_to_unicode(keyval); + if (uc != 0) + { + /* Check for CTRL-foo */ + if ((state & GDK_CONTROL_MASK) && uc >= 0x20 && uc < 0x80) + { + /* These mappings look arbitrary at the first glance, but in fact + * resemble quite exactly the behaviour of the GTK+ 1.2 GUI on my + * machine. The only difference is BS vs. DEL for CTRL-8 (makes + * more sense and is consistent with usual terminal behaviour). */ + if (uc >= '@') + string[0] = uc & 0x1F; + else if (uc == '2') + string[0] = NUL; + else if (uc >= '3' && uc <= '7') + string[0] = uc ^ 0x28; + else if (uc == '8') + string[0] = BS; + else if (uc == '?') + string[0] = DEL; + else + string[0] = uc; + len = 1; + } + else + { + /* Translate a normal key to UTF-8. This doesn't work for dead + * keys of course, you _have_ to use an input method for that. */ + len = utf_char2bytes((int)uc, string); + } + } + else + { + /* Translate keys which are represented by ASCII control codes in Vim. + * There are only a few of those; most control keys are translated to + * special terminal-like control sequences. */ + len = 1; + switch (keyval) + { + case GDK_Tab: case GDK_KP_Tab: case GDK_ISO_Left_Tab: + string[0] = TAB; + break; + case GDK_Linefeed: + string[0] = NL; + break; + case GDK_Return: case GDK_ISO_Enter: case GDK_3270_Enter: + string[0] = CAR; + break; + case GDK_Escape: + string[0] = ESC; + break; + default: + len = 0; + break; + } + } + string[len] = NUL; + + return len; +} +#endif /* HAVE_GTK2 */ + +/* + * Main keyboard handler: + */ +/*ARGSUSED*/ + static gint +key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data) +{ +#ifdef HAVE_GTK2 + /* 256 bytes is way over the top, but for safety let's reduce it only + * for GTK+ 2 where we know for sure how large the string might get. + * (That is, up to 6 bytes + NUL + CSI escapes + safety measure.) */ + char_u string[32], string2[32]; +#else + char_u string[256], string2[256]; +#endif + guint key_sym; + int len; + int i; + int modifiers; + int key; + guint state; + char_u *s, *d; + + key_sym = event->keyval; + state = event->state; +#ifndef HAVE_GTK2 /* deprecated */ + len = event->length; + g_assert(len <= sizeof(string)); +#endif + +#ifndef HAVE_GTK2 + /* + * It appears as if we always want to consume a key-press (there currently + * aren't any 'return FALSE's), so we always do this: when running in a + * GtkPlug and not a window, we must prevent emission of the key_press + * EVENT from continuing (which is 'beyond' the level of stopping mere + * signals by returning FALSE), otherwise things like tab/cursor-keys are + * processed by the GtkPlug default handler, which moves input focus away + * from us! + * Note: This should no longer be necessary with GTK+ 2. + */ + if (gtk_socket_id != 0) + gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event"); +#endif + +#ifdef FEAT_XIM + if (xim_queue_key_press_event(event, TRUE)) + return TRUE; +#endif + +#ifdef FEAT_HANGULIN + if (key_sym == GDK_space && (state & GDK_SHIFT_MASK)) + { + hangul_input_state_toggle(); + return TRUE; + } +#endif + +#ifdef SunXK_F36 + /* + * These keys have bogus lookup strings, and trapping them here is + * easier than trying to XRebindKeysym() on them with every possible + * combination of modifiers. + */ + if (key_sym == SunXK_F36 || key_sym == SunXK_F37) + len = 0; + else +#endif + { +#ifdef HAVE_GTK2 + len = keyval_to_string(key_sym, state, string2); + + /* Careful: convert_input() doesn't handle the NUL character. + * No need to convert pure ASCII anyway, thus the len > 1 check. */ + if (len > 1 && input_conv.vc_type != CONV_NONE) + len = convert_input(string2, len, sizeof(string2)); + + s = string2; +#else +# ifdef FEAT_MBYTE + if (input_conv.vc_type != CONV_NONE) + { + mch_memmove(string2, event->string, len); + len = convert_input(string2, len, sizeof(string2)); + s = string2; + } + else +# endif + s = (char_u *)event->string; +#endif + + d = string; + for (i = 0; i < len; ++i) + { + *d++ = s[i]; + if (d[-1] == CSI && d + 2 < string + sizeof(string)) + { + /* Turn CSI into K_CSI. */ + *d++ = KS_EXTRA; + *d++ = (int)KE_CSI; + } + } + len = d - string; + } + + /* Shift-Tab results in Left_Tab, but we want <S-Tab> */ + if (key_sym == GDK_ISO_Left_Tab) + { + key_sym = GDK_Tab; + state |= GDK_SHIFT_MASK; + } + +#ifndef HAVE_GTK2 /* for GTK+ 2, we handle this in keyval_to_string() */ + if ((key_sym == GDK_2 || key_sym == GDK_at) && (state & GDK_CONTROL_MASK)) + { + string[0] = NUL; /* CTRL-2 and CTRL-@ is NUL */ + len = 1; + } + else if (len == 0 && (key_sym == GDK_space || key_sym == GDK_Tab)) + { + /* When there are modifiers, these keys get zero length; we need the + * original key here to be able to add a modifier below. */ + string[0] = (key_sym & 0xff); + len = 1; + } +#endif + +#ifdef FEAT_MENU + /* If there is a menu and 'wak' is "yes", or 'wak' is "menu" and the key + * is a menu shortcut, we ignore everything with the ALT modifier. */ + if ((state & GDK_MOD1_MASK) + && gui.menu_is_active + && (*p_wak == 'y' + || (*p_wak == 'm' + && len == 1 + && gui_is_menu_shortcut(string[0])))) +# ifdef HAVE_GTK2 + /* For GTK2 we return false to signify that we haven't handled the + * keypress, so that gtk will handle the mnemonic or accelerator. */ + return FALSE; +# else + return TRUE; +# endif +#endif + + /* Check for Alt/Meta key (Mod1Mask), but not for a BS, DEL or character + * that already has the 8th bit set. + * Don't do this for <S-M-Tab>, that should become K_S_TAB with ALT. + * Don't do this for double-byte encodings, it turns the char into a lead + * byte. */ + if (len == 1 + && (state & GDK_MOD1_MASK) + && !(key_sym == GDK_BackSpace || key_sym == GDK_Delete) + && (string[0] & 0x80) == 0 + && !(key_sym == GDK_Tab && (state & GDK_SHIFT_MASK)) +#ifdef FEAT_MBYTE + && !enc_dbcs +#endif + ) + { + string[0] |= 0x80; + state &= ~GDK_MOD1_MASK; /* don't use it again */ +#ifdef FEAT_MBYTE + if (enc_utf8) /* convert to utf-8 */ + { + string[1] = string[0] & 0xbf; + string[0] = ((unsigned)string[0] >> 6) + 0xc0; + if (string[1] == CSI) + { + string[2] = KS_EXTRA; + string[3] = (int)KE_CSI; + len = 4; + } + else + len = 2; + } +#endif + } + + /* Check for special keys. Also do this when len == 1 (key has an ASCII + * value) to detect backspace, delete and keypad keys. */ + if (len == 0 || len == 1) + { + for (i = 0; special_keys[i].key_sym != 0; i++) + { + if (special_keys[i].key_sym == key_sym) + { + string[0] = CSI; + string[1] = special_keys[i].code0; + string[2] = special_keys[i].code1; + len = -3; + break; + } + } + } + + if (len == 0) /* Unrecognized key */ + return TRUE; + +#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) && !defined(HAVE_GTK2) + /* Cancel or type backspace. For GTK2, im_commit_cb() does the same. */ + preedit_start_col = MAXCOL; + xim_changed_while_preediting = TRUE; +#endif + + /* Special keys (and a few others) may have modifiers. Also when using a + * double-byte encoding (can't set the 8th bit). */ + if (len == -3 || key_sym == GDK_space || key_sym == GDK_Tab + || key_sym == GDK_Return || key_sym == GDK_Linefeed + || key_sym == GDK_Escape || key_sym == GDK_KP_Tab + || key_sym == GDK_ISO_Enter || key_sym == GDK_3270_Enter +#ifdef FEAT_MBYTE + || (enc_dbcs && len == 1 && (state & GDK_MOD1_MASK)) +#endif + ) + { + modifiers = 0; + if (state & GDK_SHIFT_MASK) + modifiers |= MOD_MASK_SHIFT; + if (state & GDK_CONTROL_MASK) + modifiers |= MOD_MASK_CTRL; + if (state & GDK_MOD1_MASK) + modifiers |= MOD_MASK_ALT; + + /* + * For some keys a shift modifier is translated into another key + * code. + */ + if (len == -3) + key = TO_SPECIAL(string[1], string[2]); + else + key = string[0]; + + key = simplify_key(key, &modifiers); + if (key == CSI) + key = K_CSI; + if (IS_SPECIAL(key)) + { + string[0] = CSI; + string[1] = K_SECOND(key); + string[2] = K_THIRD(key); + len = 3; + } + else + { + string[0] = key; + len = 1; + } + + if (modifiers != 0) + { + string2[0] = CSI; + string2[1] = KS_MODIFIER; + string2[2] = modifiers; + add_to_input_buf(string2, 3); + } + } + + if (len == 1 && ((string[0] == Ctrl_C && ctrl_c_interrupts) + || (string[0] == intr_char && intr_char != Ctrl_C))) + { + trash_input_buf(); + got_int = TRUE; + } + + add_to_input_buf(string, len); + + /* blank out the pointer if necessary */ + if (p_mh) + gui_mch_mousehide(TRUE); + + if (gtk_main_level() > 0) + gtk_main_quit(); + + return TRUE; +} + +#if defined(FEAT_XIM) && defined(HAVE_GTK2) +/*ARGSUSED0*/ + static gboolean +key_release_event(GtkWidget *widget, GdkEventKey *event, gpointer data) +{ + /* + * GTK+ 2 input methods may do fancy stuff on key release events too. + * With the default IM for instance, you can enter any UCS code point + * by holding down CTRL-SHIFT and typing hexadecimal digits. + */ + return xim_queue_key_press_event(event, FALSE); +} +#endif + + +/**************************************************************************** + * Selection handlers: + */ + +/*ARGSUSED*/ + static gint +selection_clear_event(GtkWidget *widget, + GdkEventSelection *event, + gpointer user_data) +{ + if (event->selection == clip_plus.gtk_sel_atom) + clip_lose_selection(&clip_plus); + else + clip_lose_selection(&clip_star); + + if (gtk_main_level() > 0) + gtk_main_quit(); + + return TRUE; +} + +#define RS_NONE 0 /* selection_received_cb() not called yet */ +#define RS_OK 1 /* selection_received_cb() called and OK */ +#define RS_FAIL 2 /* selection_received_cb() called and failed */ +static int received_selection = RS_NONE; + +/*ARGSUSED*/ + static void +selection_received_cb(GtkWidget *widget, + GtkSelectionData *data, + guint time_, + gpointer user_data) +{ + VimClipboard *cbd; + char_u *text; + char_u *tmpbuf = NULL; +#ifdef HAVE_GTK2 + guchar *tmpbuf_utf8 = NULL; +#endif + int len; + int motion_type; + + if (data->selection == clip_plus.gtk_sel_atom) + cbd = &clip_plus; + else + cbd = &clip_star; + + text = (char_u *)data->data; + len = data->length; + motion_type = MCHAR; + + if (text == NULL || len <= 0) + { + received_selection = RS_FAIL; + /* clip_free_selection(cbd); ??? */ + + if (gtk_main_level() > 0) + gtk_main_quit(); + + return; + } + + if (data->type == vim_atom) + { + motion_type = *text++; + --len; + } + +#ifdef FEAT_MBYTE + else if (data->type == vimenc_atom) + { + char_u *enc; + vimconv_T conv; + + motion_type = *text++; + --len; + + enc = text; + text += STRLEN(text) + 1; + len -= text - enc; + + /* If the encoding of the text is different from 'encoding', attempt + * converting it. */ + conv.vc_type = CONV_NONE; + convert_setup(&conv, enc, p_enc); + if (conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&conv, text, &len); + if (tmpbuf != NULL) + text = tmpbuf; + convert_setup(&conv, NULL, NULL); + } + } +#endif + +#ifdef HAVE_GTK2 + /* gtk_selection_data_get_text() handles all the nasty details + * and targets and encodings etc. This rocks so hard. */ + else + { + tmpbuf_utf8 = gtk_selection_data_get_text(data); + if (tmpbuf_utf8 != NULL) + { + len = STRLEN(tmpbuf_utf8); + if (input_conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&input_conv, tmpbuf_utf8, &len); + if (tmpbuf != NULL) + text = tmpbuf; + } + else + text = tmpbuf_utf8; + } + } +#else /* !HAVE_GTK2 */ +# ifdef FEAT_MBYTE + else if (data->type == utf8_string_atom) + { + vimconv_T conv; + + conv.vc_type = CONV_NONE; + convert_setup(&conv, (char_u *)"utf-8", p_enc); + + if (conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&conv, text, &len); + convert_setup(&conv, NULL, NULL); + } + if (tmpbuf != NULL) + text = tmpbuf; + } +# endif + else if (data->type == compound_text_atom || data->type == text_atom) + { + char **list = NULL; + int count; + int i; + unsigned tmplen = 0; + + count = gdk_text_property_to_text_list(data->type, data->format, + data->data, data->length, + &list); + for (i = 0; i < count; ++i) + tmplen += strlen(list[i]); + + tmpbuf = alloc(tmplen + 1); + if (tmpbuf != NULL) + { + tmpbuf[0] = NUL; + for (i = 0; i < count; ++i) + STRCAT(tmpbuf, list[i]); + text = tmpbuf; + len = tmplen; + } + + if (list != NULL) + gdk_free_text_list(list); + } +#endif /* !HAVE_GTK2 */ + + clip_yank_selection(motion_type, text, (long)len, cbd); + received_selection = RS_OK; + vim_free(tmpbuf); +#ifdef HAVE_GTK2 + g_free(tmpbuf_utf8); +#endif + + if (gtk_main_level() > 0) + gtk_main_quit(); +} + +/* + * Prepare our selection data for passing it to the external selection + * client. + */ +/*ARGSUSED*/ + static void +selection_get_cb(GtkWidget *widget, + GtkSelectionData *selection_data, + guint info, + guint time_, + gpointer user_data) +{ + char_u *string; + char_u *tmpbuf; + long_u tmplen; + int length; + int motion_type; + GdkAtom type; + VimClipboard *cbd; + + if (selection_data->selection == clip_plus.gtk_sel_atom) + cbd = &clip_plus; + else + cbd = &clip_star; + + if (!cbd->owned) + return; /* Shouldn't ever happen */ + + if (info != (guint)TARGET_STRING +#ifdef FEAT_MBYTE + && info != (guint)TARGET_UTF8_STRING + && info != (guint)TARGET_VIMENC +#endif + && info != (guint)TARGET_VIM + && info != (guint)TARGET_COMPOUND_TEXT + && info != (guint)TARGET_TEXT) + return; + + /* get the selection from the '*'/'+' register */ + clip_get_selection(cbd); + + motion_type = clip_convert_selection(&string, &tmplen, cbd); + if (motion_type < 0 || string == NULL) + return; + /* Due to int arguments we can't handle more than G_MAXINT. Also + * reserve one extra byte for NUL or the motion type; just in case. + * (Not that pasting 2G of text is ever going to work, but... ;-) */ + length = MIN(tmplen, (long_u)(G_MAXINT - 1)); + + if (info == (guint)TARGET_VIM) + { + tmpbuf = alloc((unsigned)length + 1); + if (tmpbuf != NULL) + { + tmpbuf[0] = motion_type; + mch_memmove(tmpbuf + 1, string, (size_t)length); + } + /* For our own format, the first byte contains the motion type */ + ++length; + vim_free(string); + string = tmpbuf; + type = vim_atom; + } + +#ifdef FEAT_MBYTE + else if (info == (guint)TARGET_VIMENC) + { + int l = STRLEN(p_enc); + + /* contents: motion_type 'encoding' NUL text */ + tmpbuf = alloc((unsigned)length + l + 2); + if (tmpbuf != NULL) + { + tmpbuf[0] = motion_type; + STRCPY(tmpbuf + 1, p_enc); + mch_memmove(tmpbuf + l + 2, string, (size_t)length); + } + length += l + 2; + vim_free(string); + string = tmpbuf; + type = vimenc_atom; + } +#endif + +#ifdef HAVE_GTK2 + /* gtk_selection_data_set_text() handles everything for us. This is + * so easy and simple and cool, it'd be insane not to use it. */ + else + { + if (output_conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&output_conv, string, &length); + vim_free(string); + if (tmpbuf == NULL) + return; + string = tmpbuf; + } + /* Validate the string to avoid runtime warnings */ + if (g_utf8_validate((const char *)string, (gssize)length, NULL)) + { + gtk_selection_data_set_text(selection_data, + (const char *)string, length); + } + vim_free(string); + return; + } +#else /* !HAVE_GTK2 */ +# ifdef FEAT_MBYTE + else if (info == (guint)TARGET_UTF8_STRING) + { + vimconv_T conv; + + conv.vc_type = CONV_NONE; + convert_setup(&conv, p_enc, (char_u *)"utf-8"); + + if (conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&conv, string, &length); + convert_setup(&conv, NULL, NULL); + vim_free(string); + string = tmpbuf; + } + type = utf8_string_atom; + } +# endif + else if (info == (guint)TARGET_COMPOUND_TEXT + || info == (guint)TARGET_TEXT) + { + int format; + + /* Copy the string to ensure NUL-termination */ + tmpbuf = vim_strnsave(string, length); + vim_free(string); + if (tmpbuf != NULL) + { + gdk_string_to_compound_text((const char *)tmpbuf, + &type, &format, &string, &length); + vim_free(tmpbuf); + selection_data->type = type; + selection_data->format = format; + gtk_selection_data_set(selection_data, type, format, string, length); + gdk_free_compound_text(string); + } + return; + } + else + { + type = GDK_TARGET_STRING; + } +#endif /* !HAVE_GTK2 */ + + if (string != NULL) + { + selection_data->type = selection_data->target; + selection_data->format = 8; /* 8 bits per char */ + + gtk_selection_data_set(selection_data, type, 8, string, length); + vim_free(string); + } +} + +/* + * Check if the GUI can be started. Called before gvimrc is sourced. + * Return OK or FAIL. + */ + int +gui_mch_init_check(void) +{ +#ifndef HAVE_GTK2 + /* This is needed to make the locale handling consistant between the GUI + * and the rest of VIM. */ + gtk_set_locale(); +#endif + +#ifdef FEAT_GUI_GNOME + if (gtk_socket_id == 0) + using_gnome = 1; +#endif + + /* Don't use gtk_init() or gnome_init(), it exits on failure. */ + if (!gtk_init_check(&gui_argc, &gui_argv)) + { + gui.dying = TRUE; + EMSG(_(e_opendisp)); + return FAIL; + } + + return OK; +} + + +/**************************************************************************** + * Mouse handling callbacks + */ + + +static guint mouse_click_timer = 0; +static int mouse_timed_out = TRUE; + +/* + * Timer used to recognize multiple clicks of the mouse button + */ + static gint +mouse_click_timer_cb(gpointer data) +{ + /* we don't use this information currently */ + int *timed_out = (int *) data; + + *timed_out = TRUE; + return FALSE; /* don't happen again */ +} + +static guint motion_repeat_timer = 0; +static int motion_repeat_offset = FALSE; +static gint motion_repeat_timer_cb(gpointer); + + static void +process_motion_notify(int x, int y, GdkModifierType state) +{ + int button; + int_u vim_modifiers; + + button = (state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | + GDK_BUTTON3_MASK | GDK_BUTTON4_MASK | + GDK_BUTTON5_MASK)) + ? MOUSE_DRAG : ' '; + + /* If our pointer is currently hidden, then we should show it. */ + gui_mch_mousehide(FALSE); + + /* Just moving the rodent above the drawing area without any button + * being pressed. */ + if (button != MOUSE_DRAG) + { + gui_mouse_moved(x, y); + return; + } + + /* translate modifier coding between the main engine and GTK */ + vim_modifiers = 0x0; + if (state & GDK_SHIFT_MASK) + vim_modifiers |= MOUSE_SHIFT; + if (state & GDK_CONTROL_MASK) + vim_modifiers |= MOUSE_CTRL; + if (state & GDK_MOD1_MASK) + vim_modifiers |= MOUSE_ALT; + + /* inform the editor engine about the occurence of this event */ + gui_send_mouse_event(button, x, y, FALSE, vim_modifiers); + + if (gtk_main_level() > 0) + gtk_main_quit(); + + /* + * Auto repeat timer handling. + */ + if (x < 0 || y < 0 + || x >= gui.drawarea->allocation.width + || y >= gui.drawarea->allocation.height) + { + + int dx; + int dy; + int offshoot; + int delay = 10; + + /* Calculate the maximal distance of the cursor from the drawing area. + * (offshoot can't become negative here!). + */ + dx = x < 0 ? -x : x - gui.drawarea->allocation.width; + dy = y < 0 ? -y : y - gui.drawarea->allocation.height; + + offshoot = dx > dy ? dx : dy; + + /* Make a linearly declaying timer delay with a threshold of 5 at a + * distance of 127 pixels from the main window. + * + * One could think endlessly about the most ergonomic variant here. + * For example it could make sense to calculate the distance from the + * drags start instead... + * + * Maybe a parabolic interpolation would suite us better here too... + */ + if (offshoot > 127) + { + /* 5 appears to be somehow near to my perceptual limits :-). */ + delay = 5; + } + else + { + delay = (130 * (127 - offshoot)) / 127 + 5; + } + + /* shoot again */ + if (!motion_repeat_timer) + motion_repeat_timer = gtk_timeout_add((guint32)delay, + motion_repeat_timer_cb, NULL); + } +} + +/* + * Timer used to recognize multiple clicks of the mouse button. + */ +/*ARGSUSED0*/ + static gint +motion_repeat_timer_cb(gpointer data) +{ + int x; + int y; + GdkModifierType state; + + gdk_window_get_pointer(gui.drawarea->window, &x, &y, &state); + + if (!(state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | + GDK_BUTTON3_MASK | GDK_BUTTON4_MASK | + GDK_BUTTON5_MASK))) + { + motion_repeat_timer = 0; + return FALSE; + } + + /* If there already is a mouse click in the input buffer, wait another + * time (otherwise we would create a backlog of clicks) */ + if (vim_used_in_input_buf() > 10) + return TRUE; + + motion_repeat_timer = 0; + + /* + * Fake a motion event. + * Trick: Pretend the mouse moved to the next character on every other + * event, otherwise drag events will be discarded, because they are still + * in the same character. + */ + if (motion_repeat_offset) + x += gui.char_width; + + motion_repeat_offset = !motion_repeat_offset; + process_motion_notify(x, y, state); + + /* Don't happen again. We will get reinstalled in the synthetic event + * if needed -- thus repeating should still work. */ + return FALSE; +} + +/*ARGSUSED2*/ + static gint +motion_notify_event(GtkWidget *widget, GdkEventMotion *event, gpointer data) +{ + if (event->is_hint) + { + int x; + int y; + GdkModifierType state; + + gdk_window_get_pointer(widget->window, &x, &y, &state); + process_motion_notify(x, y, state); + } + else + { + process_motion_notify((int)event->x, (int)event->y, + (GdkModifierType)event->state); + } + + return TRUE; /* handled */ +} + + +/* + * Mouse button handling. Note please that we are capturing multiple click's + * by our own timeout mechanism instead of the one provided by GTK+ itself. + * This is due to the way the generic VIM code is recognizing multiple clicks. + */ +/*ARGSUSED2*/ + static gint +button_press_event(GtkWidget *widget, GdkEventButton *event, gpointer data) +{ + int button; + int repeated_click = FALSE; + int x, y; + int_u vim_modifiers; + + /* Make sure we have focus now we've been selected */ + if (gtk_socket_id != 0 && !GTK_WIDGET_HAS_FOCUS(widget)) + gtk_widget_grab_focus(widget); + + /* + * Don't let additional events about multiple clicks send by GTK to us + * after the initial button press event confuse us. + */ + if (event->type != GDK_BUTTON_PRESS) + return FALSE; + + x = event->x; + y = event->y; + + /* Handle multiple clicks */ + if (!mouse_timed_out && mouse_click_timer) + { + gtk_timeout_remove(mouse_click_timer); + mouse_click_timer = 0; + repeated_click = TRUE; + } + + mouse_timed_out = FALSE; + mouse_click_timer = gtk_timeout_add((guint32)p_mouset, + mouse_click_timer_cb, &mouse_timed_out); + + switch (event->button) + { + case 1: + button = MOUSE_LEFT; + break; + case 2: + button = MOUSE_MIDDLE; + break; + case 3: + button = MOUSE_RIGHT; + break; +#ifndef HAVE_GTK2 + case 4: + button = MOUSE_4; + break; + case 5: + button = MOUSE_5; + break; +#endif + default: + return FALSE; /* Unknown button */ + } + +#ifdef FEAT_XIM + /* cancel any preediting */ + if (im_is_preediting()) + xim_reset(); +#endif + + vim_modifiers = 0x0; + if (event->state & GDK_SHIFT_MASK) + vim_modifiers |= MOUSE_SHIFT; + if (event->state & GDK_CONTROL_MASK) + vim_modifiers |= MOUSE_CTRL; + if (event->state & GDK_MOD1_MASK) + vim_modifiers |= MOUSE_ALT; + + gui_send_mouse_event(button, x, y, repeated_click, vim_modifiers); + if (gtk_main_level() > 0) + gtk_main_quit(); /* make sure the above will be handled immediately */ + + return TRUE; +} + +#ifdef HAVE_GTK2 +/* + * GTK+ 2 doesn't handle mouse buttons 4, 5, 6 and 7 the same way as GTK+ 1. + * Instead, it abstracts scrolling via the new GdkEventScroll. + */ +/*ARGSUSED2*/ + static gboolean +scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data) +{ + int button; + int_u vim_modifiers = 0; + + if (gtk_socket_id != 0 && !GTK_WIDGET_HAS_FOCUS(widget)) + gtk_widget_grab_focus(widget); + + switch (event->direction) + { + case GDK_SCROLL_UP: + button = MOUSE_4; + break; + case GDK_SCROLL_DOWN: + button = MOUSE_5; + break; + default: /* We don't care about left and right... Yet. */ + return FALSE; + } + +# ifdef FEAT_XIM + /* cancel any preediting */ + if (im_is_preediting()) + xim_reset(); +# endif + + if (event->state & GDK_SHIFT_MASK) + vim_modifiers |= MOUSE_SHIFT; + if (event->state & GDK_CONTROL_MASK) + vim_modifiers |= MOUSE_CTRL; + if (event->state & GDK_MOD1_MASK) + vim_modifiers |= MOUSE_ALT; + + gui_send_mouse_event(button, (int)event->x, (int)event->y, + FALSE, vim_modifiers); + + if (gtk_main_level() > 0) + gtk_main_quit(); /* make sure the above will be handled immediately */ + + return TRUE; +} +#endif /* HAVE_GTK2 */ + + +/*ARGSUSED*/ + static gint +button_release_event(GtkWidget *widget, GdkEventButton *event, gpointer data) +{ + int x, y; + int_u vim_modifiers; + + /* Remove any motion "machine gun" timers used for automatic further + extension of allocation areas if outside of the applications window + area .*/ + if (motion_repeat_timer) + { + gtk_timeout_remove(motion_repeat_timer); + motion_repeat_timer = 0; + } + + x = event->x; + y = event->y; + + vim_modifiers = 0x0; + if (event->state & GDK_SHIFT_MASK) + vim_modifiers |= MOUSE_SHIFT; + if (event->state & GDK_CONTROL_MASK) + vim_modifiers |= MOUSE_CTRL; + if (event->state & GDK_MOD1_MASK) + vim_modifiers |= MOUSE_ALT; + + gui_send_mouse_event(MOUSE_RELEASE, x, y, FALSE, vim_modifiers); + if (gtk_main_level() > 0) + gtk_main_quit(); /* make sure it will be handled immediately */ + + return TRUE; +} + + +#ifdef FEAT_DND +/**************************************************************************** + * Drag aNd Drop support handlers. + */ + +/* + * Count how many items there may be and separate them with a NUL. + * Apparently the items are separated with \r\n. This is not documented, + * thus be careful not to go past the end. Also allow separation with + * NUL characters. + */ + static int +count_and_decode_uri_list(char_u *out, char_u *raw, int len) +{ + int i; + char_u *p = out; + int count = 0; + + for (i = 0; i < len; ++i) + { + if (raw[i] == NUL || raw[i] == '\n' || raw[i] == '\r') + { + if (p > out && p[-1] != NUL) + { + ++count; + *p++ = NUL; + } + } + else if (raw[i] == '%' && i + 2 < len && hexhex2nr(raw + i + 1) > 0) + { + *p++ = hexhex2nr(raw + i + 1); + i += 2; + } + else + *p++ = raw[i]; + } + if (p > out && p[-1] != NUL) + { + *p = NUL; /* last item didn't have \r or \n */ + ++count; + } + return count; +} + +/* + * Parse NUL separated "src" strings. Make it an array "outlist" form. On + * this process, URI which protocol is not "file:" are removed. Return + * length of array (less than "max"). + */ + static int +filter_uri_list(char_u **outlist, int max, char_u *src) +{ + int i, j; + + for (i = j = 0; i < max; ++i) + { + outlist[i] = NULL; + if (STRNCMP(src, "file:", 5) == 0) + { + src += 5; + if (STRNCMP(src, "//localhost", 11) == 0) + src += 11; + while (src[0] == '/' && src[1] == '/') + ++src; + outlist[j++] = vim_strsave(src); + } + src += STRLEN(src) + 1; + } + return j; +} + + static char_u ** +parse_uri_list(int *count, char_u *data, int len) +{ + int n = 0; + char_u *tmp = NULL; + char_u **array = NULL;; + + if (data != NULL && len > 0 && (tmp = (char_u *)alloc(len + 1)) != NULL) + { + n = count_and_decode_uri_list(tmp, data, len); + if (n > 0 && (array = (char_u **)alloc(n * sizeof(char_u *))) != NULL) + n = filter_uri_list(array, n, tmp); + } + vim_free(tmp); + *count = n; + return array; +} + + static void +drag_handle_uri_list(GdkDragContext *context, + GtkSelectionData *data, + guint time_, + GdkModifierType state, + gint x, + gint y) +{ + char_u **fnames; + int nfiles = 0; + + fnames = parse_uri_list(&nfiles, data->data, data->length); + + if (fnames != NULL && nfiles > 0) + { + int_u modifiers = 0; + + gtk_drag_finish(context, TRUE, FALSE, time_); /* accept */ + + if (state & GDK_SHIFT_MASK) + modifiers |= MOUSE_SHIFT; + if (state & GDK_CONTROL_MASK) + modifiers |= MOUSE_CTRL; + if (state & GDK_MOD1_MASK) + modifiers |= MOUSE_ALT; + + gui_handle_drop(x, y, modifiers, fnames, nfiles); + } +} + + static void +drag_handle_text(GdkDragContext *context, + GtkSelectionData *data, + guint time_, + GdkModifierType state) +{ + char_u dropkey[6] = {CSI, KS_MODIFIER, 0, CSI, KS_EXTRA, (char_u)KE_DROP}; + char_u *text; + int len; +# ifdef FEAT_MBYTE + char_u *tmpbuf = NULL; +# endif + + text = data->data; + len = data->length; + +# ifdef FEAT_MBYTE + if (data->type == utf8_string_atom) + { +# ifdef HAVE_GTK2 + if (input_conv.vc_type != CONV_NONE) + tmpbuf = string_convert(&input_conv, text, &len); +# else + vimconv_T conv; + + conv.vc_type = CONV_NONE; + convert_setup(&conv, (char_u *)"utf-8", p_enc); + + if (conv.vc_type != CONV_NONE) + { + tmpbuf = string_convert(&conv, text, &len); + convert_setup(&conv, NULL, NULL); + } +# endif + if (tmpbuf != NULL) + text = tmpbuf; + } +# endif /* FEAT_MBYTE */ + + dnd_yank_drag_data(text, (long)len); + gtk_drag_finish(context, TRUE, FALSE, time_); /* accept */ +# ifdef FEAT_MBYTE + vim_free(tmpbuf); +# endif + + if (state & GDK_SHIFT_MASK) + dropkey[2] |= MOD_MASK_SHIFT; + if (state & GDK_CONTROL_MASK) + dropkey[2] |= MOD_MASK_CTRL; + if (state & GDK_MOD1_MASK) + dropkey[2] |= MOD_MASK_ALT; + + if (dropkey[2] != 0) + add_to_input_buf(dropkey, (int)sizeof(dropkey)); + else + add_to_input_buf(dropkey + 3, (int)(sizeof(dropkey) - 3)); + + if (gtk_main_level() > 0) + gtk_main_quit(); +} + +/* + * DND receiver. + */ +/*ARGSUSED2*/ + static void +drag_data_received_cb(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *data, + guint info, + guint time_, + gpointer user_data) +{ + GdkModifierType state; + + /* Guard against trash */ + if (data->data == NULL + || data->length <= 0 + || data->format != 8 + || data->data[data->length] != '\0') + { + gtk_drag_finish(context, FALSE, FALSE, time_); + return; + } + + /* Get the current modifier state for proper distinguishment between + * different operations later. */ + gdk_window_get_pointer(widget->window, NULL, NULL, &state); + + /* Not sure about the role of "text/plain" here... */ + if (info == (guint)TARGET_TEXT_URI_LIST) + drag_handle_uri_list(context, data, time_, state, x, y); + else + drag_handle_text(context, data, time_, state); + +} +#endif /* FEAT_DND */ + + +#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION) +/* + * GnomeClient interact callback. Check for unsaved buffers that cannot + * be abandoned and pop up a dialog asking the user for confirmation if + * necessary. + */ +/*ARGSUSED0*/ + static void +sm_client_check_changed_any(GnomeClient *client, + gint key, + GnomeDialogType type, + gpointer data) +{ + cmdmod_T save_cmdmod; + gboolean shutdown_cancelled; + + save_cmdmod = cmdmod; + +# ifdef FEAT_BROWSE + cmdmod.browse = TRUE; +# endif +# if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) + cmdmod.confirm = TRUE; +# endif + /* + * If there are changed buffers, present the user with + * a dialog if possible, otherwise give an error message. + */ + shutdown_cancelled = check_changed_any(FALSE); + + exiting = FALSE; + cmdmod = save_cmdmod; + setcursor(); /* position the cursor */ + out_flush(); + /* + * If the user hit the [Cancel] button the whole shutdown + * will be cancelled. Wow, quite powerful feature (: + */ + gnome_interaction_key_return(key, shutdown_cancelled); +} + +/* + * Generate a script that can be used to restore the current editing session. + * Save the value of v:this_session before running :mksession in order to make + * automagic session save fully transparent. Return TRUE on success. + */ + static int +write_session_file(char_u *filename) +{ + char_u *escaped_filename; + char *mksession_cmdline; + unsigned int save_ssop_flags; + int failed; + + /* + * Build an ex command line to create a script that restores the current + * session if executed. Escape the filename to avoid nasty surprises. + */ + escaped_filename = vim_strsave_escaped(filename, escape_chars); + if (escaped_filename == NULL) + return FALSE; + mksession_cmdline = g_strconcat("mksession ", (char *)escaped_filename, NULL); + vim_free(escaped_filename); + /* + * Use a reasonable hardcoded set of 'sessionoptions' flags to avoid + * unpredictable effects when the session is saved automatically. Also, + * we definitely need SSOP_GLOBALS to be able to restore v:this_session. + * Don't use SSOP_BUFFERS to prevent the buffer list from becoming + * enormously large if the GNOME session feature is used regularly. + */ + save_ssop_flags = ssop_flags; + ssop_flags = (SSOP_BLANK|SSOP_CURDIR|SSOP_FOLDS|SSOP_GLOBALS + |SSOP_HELP|SSOP_OPTIONS|SSOP_WINSIZE); + + do_cmdline_cmd((char_u *)"let Save_VV_this_session = v:this_session"); + failed = (do_cmdline_cmd((char_u *)mksession_cmdline) == FAIL); + do_cmdline_cmd((char_u *)"let v:this_session = Save_VV_this_session"); + do_unlet((char_u *)"Save_VV_this_session"); + + ssop_flags = save_ssop_flags; + g_free(mksession_cmdline); + /* + * Reopen the file and append a command to restore v:this_session, + * as if this save never happened. This is to avoid conflicts with + * the user's own sessions. FIXME: It's probably less hackish to add + * a "stealth" flag to 'sessionoptions' -- gotta ask Bram. + */ + if (!failed) + { + FILE *fd; + + fd = open_exfile(filename, TRUE, APPENDBIN); + + failed = (fd == NULL + || put_line(fd, "let v:this_session = Save_VV_this_session") == FAIL + || put_line(fd, "unlet Save_VV_this_session") == FAIL); + + if (fd != NULL && fclose(fd) != 0) + failed = TRUE; + + if (failed) + mch_remove(filename); + } + + return !failed; +} + +/* + * "save_yourself" signal handler. Initiate an interaction to ask the user + * for confirmation if necessary. Save the current editing session and tell + * the session manager how to restart Vim. + */ +/*ARGSUSED1*/ + static gboolean +sm_client_save_yourself(GnomeClient *client, + gint phase, + GnomeSaveStyle save_style, + gboolean shutdown, + GnomeInteractStyle interact_style, + gboolean fast, + gpointer data) +{ + static const char suffix[] = "-session.vim"; + char *session_file; + unsigned int len; + gboolean success; + + /* Always request an interaction if possible. check_changed_any() + * won't actually show a dialog unless any buffers have been modified. + * There doesn't seem to be an obvious way to check that without + * automatically firing the dialog. Anyway, it works just fine. */ + if (interact_style == GNOME_INTERACT_ANY) + gnome_client_request_interaction(client, GNOME_DIALOG_NORMAL, + &sm_client_check_changed_any, + NULL); + out_flush(); + ml_sync_all(FALSE, FALSE); /* preserve all swap files */ + + /* The path is unique for each session save. We do neither know nor care + * which session script will actually be used later. This decision is in + * the domain of the session manager. */ + session_file = gnome_config_get_real_path( + gnome_client_get_config_prefix(client)); + len = strlen(session_file); + + if (len > 0 && session_file[len-1] == G_DIR_SEPARATOR) + --len; /* get rid of the superfluous trailing '/' */ + + session_file = g_renew(char, session_file, len + sizeof(suffix)); + memcpy(session_file + len, suffix, sizeof(suffix)); + + success = write_session_file((char_u *)session_file); + + if (success) + { + const char *argv[8]; + int i; + + /* Tell the session manager how to wipe out the stored session data. + * This isn't as dangerous as it looks, don't worry :) session_file + * is a unique absolute filename. Usually it'll be something like + * `/home/user/.gnome2/vim-XXXXXX-session.vim'. */ + i = 0; + argv[i++] = "rm"; + argv[i++] = session_file; + argv[i] = NULL; + + gnome_client_set_discard_command(client, i, (char **)argv); + + /* Tell the session manager how to restore the just saved session. + * This is easily done thanks to Vim's -S option. Pass the -f flag + * since there's no need to fork -- it might even cause confusion. + * Also pass the window role to give the WM something to match on. + * The role is set in gui_mch_open(), thus should _never_ be NULL. */ + i = 0; + argv[i++] = restart_command; + argv[i++] = "-f"; + argv[i++] = "-g"; +# ifdef HAVE_GTK2 + argv[i++] = "--role"; + argv[i++] = gtk_window_get_role(GTK_WINDOW(gui.mainwin)); +# endif + argv[i++] = "-S"; + argv[i++] = session_file; + argv[i] = NULL; + + gnome_client_set_restart_command(client, i, (char **)argv); + gnome_client_set_clone_command(client, 0, NULL); + } + + g_free(session_file); + + return success; +} + +/* + * Called when the session manager wants us to die. There isn't much to save + * here since "save_yourself" has been emitted before (unless serious trouble + * is happening). + */ +/*ARGSUSED0*/ + static void +sm_client_die(GnomeClient *client, gpointer data) +{ + /* Don't write messages to the GUI anymore */ + full_screen = FALSE; + + STRNCPY(IObuff, _("Vim: Received \"die\" request from session manager\n"), + IOSIZE); + IObuff[IOSIZE - 1] = NUL; + preserve_exit(); +} + +/* + * Connect our signal handlers to be notified on session save and shutdown. + */ + static void +setup_save_yourself(void) +{ + GnomeClient *client; + + client = gnome_master_client(); + + if (client != NULL) + { + /* Must use the deprecated gtk_signal_connect() for compatibility + * with GNOME 1. Arrgh, zombies! */ + gtk_signal_connect(GTK_OBJECT(client), "save_yourself", + GTK_SIGNAL_FUNC(&sm_client_save_yourself), NULL); + gtk_signal_connect(GTK_OBJECT(client), "die", + GTK_SIGNAL_FUNC(&sm_client_die), NULL); + } +} + +#else /* !(FEAT_GUI_GNOME && FEAT_SESSION) */ + +# ifdef USE_XSMP +/* + * GTK tells us that XSMP needs attention + */ +/*ARGSUSED*/ + static gboolean +local_xsmp_handle_requests(source, condition, data) + GIOChannel *source; + GIOCondition condition; + gpointer data; +{ + if (condition == G_IO_IN) + { + /* Do stuff; maybe close connection */ + if (xsmp_handle_requests() == FAIL) + g_io_channel_unref((GIOChannel *)data); + return TRUE; + } + /* Error */ + g_io_channel_unref((GIOChannel *)data); + xsmp_close(); + return TRUE; +} +# endif /* USE_XSMP */ + +/* + * Setup the WM_PROTOCOLS to indicate we want the WM_SAVE_YOURSELF event. + * This is an ugly use of X functions. GTK doesn't offer an alternative. + */ + static void +setup_save_yourself(void) +{ + Atom *existing_atoms = NULL; + int count = 0; + +#ifdef USE_XSMP + if (xsmp_icefd != -1) + { + /* + * Use XSMP is preference to legacy WM_SAVE_YOURSELF; + * set up GTK IO monitor + */ + GIOChannel *g_io = g_io_channel_unix_new(xsmp_icefd); + + g_io_add_watch(g_io, G_IO_IN | G_IO_ERR | G_IO_HUP, + local_xsmp_handle_requests, (gpointer)g_io); + } + else +#endif + { + /* Fall back to old method */ + + /* first get the existing value */ + if (XGetWMProtocols(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window), + &existing_atoms, &count)) + { + Atom *new_atoms; + Atom save_yourself_xatom; + int i; + + save_yourself_xatom = GET_X_ATOM(save_yourself_atom); + + /* check if WM_SAVE_YOURSELF isn't there yet */ + for (i = 0; i < count; ++i) + if (existing_atoms[i] == save_yourself_xatom) + break; + + if (i == count) + { + /* allocate an Atoms array which is one item longer */ + new_atoms = (Atom *)alloc((unsigned)((count + 1) + * sizeof(Atom))); + if (new_atoms != NULL) + { + memcpy(new_atoms, existing_atoms, count * sizeof(Atom)); + new_atoms[count] = save_yourself_xatom; + XSetWMProtocols(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window), + new_atoms, count + 1); + vim_free(new_atoms); + } + } + XFree(existing_atoms); + } + } +} + +# ifdef HAVE_GTK2 +/* + * Installing a global event filter seems to be the only way to catch + * client messages of type WM_PROTOCOLS without overriding GDK's own + * client message event filter. Well, that's still better than trying + * to guess what the GDK filter had done if it had been invoked instead + * (This is what we did for GTK+ 1.2, see below). + * + * GTK2_FIXME: This doesn't seem to work. For some reason we never + * receive WM_SAVE_YOURSELF even though everything is set up correctly. + * I have the nasty feeling modern session managers just don't send this + * deprecated message anymore. Addition: confirmed by several people. + * + * The GNOME session support is much cooler anyway. Unlike this ugly + * WM_SAVE_YOURSELF hack it actually stores the session... And yes, + * it should work with KDE as well. + */ +/*ARGSUSED1*/ + static GdkFilterReturn +global_event_filter(GdkXEvent *xev, GdkEvent *event, gpointer data) +{ + XEvent *xevent = (XEvent *)xev; + + if (xevent != NULL + && xevent->type == ClientMessage + && xevent->xclient.message_type == GET_X_ATOM(wm_protocols_atom) + && xevent->xclient.data.l[0] == GET_X_ATOM(save_yourself_atom)) + { + out_flush(); + ml_sync_all(FALSE, FALSE); /* preserve all swap files */ + /* + * Set the window's WM_COMMAND property, to let the window manager + * know we are done saving ourselves. We don't want to be + * restarted, thus set argv to NULL. + */ + XSetCommand(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window), + NULL, 0); + return GDK_FILTER_REMOVE; + } + + return GDK_FILTER_CONTINUE; +} + +# else /* !HAVE_GTK2 */ + +/* + * GDK handler for X ClientMessage events. + */ +/*ARGSUSED2*/ + static GdkFilterReturn +gdk_wm_protocols_filter(GdkXEvent *xev, GdkEvent *event, gpointer data) +{ + /* From example in gdkevents.c/gdk_wm_protocols_filter */ + XEvent *xevent = (XEvent *)xev; + + if (xevent != NULL) + { + if (xevent->xclient.data.l[0] == GET_X_ATOM(save_yourself_atom)) + { + out_flush(); + ml_sync_all(FALSE, FALSE); /* preserve all swap files */ + + /* Set the window's WM_COMMAND property, to let the window manager + * know we are done saving ourselves. We don't want to be + * restarted, thus set argv to NULL. */ + XSetCommand(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window), + NULL, 0); + } + /* + * Functionality from gdkevents.c/gdk_wm_protocols_filter; + * Registering this filter apparently overrides the default GDK one, + * so we need to perform its functionality. There seems no way to + * register for WM_PROTOCOLS, and only process the WM_SAVE_YOURSELF + * bit; it's all or nothing. Update: No, there is a way -- but it + * only works with GTK+ 2 apparently. See above. + */ + else if (xevent->xclient.data.l[0] == GET_X_ATOM(gdk_wm_delete_window)) + { + event->any.type = GDK_DELETE; + return GDK_FILTER_TRANSLATE; + } + } + + return GDK_FILTER_REMOVE; +} +# endif /* !HAVE_GTK2 */ + +#endif /* !(FEAT_GUI_GNOME && FEAT_SESSION) */ + + +/* + * Setup the window icon & xcmdsrv comm after the main window has been realized. + */ +/*ARGSUSED*/ + static void +mainwin_realize(GtkWidget *widget, gpointer data) +{ +/* If you get an error message here, you still need to unpack the runtime + * archive! */ +#ifdef magick +# undef magick +#endif +#ifdef HAVE_GTK2 + /* A bit hackish, but avoids casting later and allows optimization */ +# define static static const +#endif +#define magick vim32x32 +#include "../runtime/vim32x32.xpm" +#undef magick +#define magick vim16x16 +#include "../runtime/vim16x16.xpm" +#undef magick +#define magick vim48x48 +#include "../runtime/vim48x48.xpm" +#undef magick +#ifdef HAVE_GTK2 +# undef static +#endif + + /* When started with "--echo-wid" argument, write window ID on stdout. */ + if (echo_wid_arg) + { + printf("WID: %ld\n", (long)GDK_WINDOW_XWINDOW(gui.mainwin->window)); + fflush(stdout); + } + + if (vim_strchr(p_go, GO_ICON) != NULL) + { + /* + * Add an icon to the main window. For fun and convenience of the user. + */ +#ifdef HAVE_GTK2 + GList *icons = NULL; + + icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim16x16)); + icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim32x32)); + icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim48x48)); + + gtk_window_set_icon_list(GTK_WINDOW(gui.mainwin), icons); + + g_list_foreach(icons, (GFunc)&g_object_unref, NULL); + g_list_free(icons); + +#else /* !HAVE_GTK2 */ + + GdkPixmap *icon; + GdkBitmap *icon_mask = NULL; + char **magick = vim32x32; + Display *xdisplay; + Window root_window; + XIconSize *size; + int number_sizes; + /* + * Adjust the icon to the preferences of the actual window manager. + * This is once again a workaround for a defficiency in GTK+ 1.2. + */ + xdisplay = GDK_WINDOW_XDISPLAY(gui.mainwin->window); + root_window = XRootWindow(xdisplay, DefaultScreen(xdisplay)); + if (XGetIconSizes(xdisplay, root_window, &size, &number_sizes)) + { + if (number_sizes > 0) + { + if (size->max_height >= 48 && size->max_height >= 48) + magick = vim48x48; + else if (size->max_height >= 32 && size->max_height >= 32) + magick = vim32x32; + else if (size->max_height >= 16 && size->max_height >= 16) + magick = vim16x16; + } + XFree(size); + } + icon = gdk_pixmap_create_from_xpm_d(gui.mainwin->window, + &icon_mask, NULL, magick); + if (icon != NULL) + /* Note: for some reason gdk_window_set_icon() doesn't acquire + * a reference on the pixmap, thus we _have_ to leak it. */ + gdk_window_set_icon(gui.mainwin->window, NULL, icon, icon_mask); + +#endif /* !HAVE_GTK2 */ + } + +#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)) + /* Register a handler for WM_SAVE_YOURSELF with GDK's low-level X I/F */ +# ifdef HAVE_GTK2 + gdk_window_add_filter(NULL, &global_event_filter, NULL); +# else + gdk_add_client_message_filter(wm_protocols_atom, + &gdk_wm_protocols_filter, NULL); +# endif +#endif + /* Setup to indicate to the window manager that we want to catch the + * WM_SAVE_YOURSELF event. For GNOME, this connects to the session + * manager instead. */ +#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION) + if (using_gnome) +#endif + setup_save_yourself(); + +#ifdef FEAT_CLIENTSERVER + if (serverName == NULL && serverDelayedStartName != NULL) + { + /* This is a :gui command in a plain vim with no previous server */ + commWindow = GDK_WINDOW_XWINDOW(gui.mainwin->window); + + (void)serverRegisterName(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + serverDelayedStartName); + } + else + { + /* + * Cannot handle "XLib-only" windows with gtk event routines, we'll + * have to change the "server" registration to that of the main window + * If we have not registered a name yet, remember the window + */ + serverChangeRegisteredWindow(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window)); + } + gtk_widget_add_events(gui.mainwin, GDK_PROPERTY_CHANGE_MASK); + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "property_notify_event", + GTK_SIGNAL_FUNC(property_event), NULL); +#endif +} + + static GdkCursor * +create_blank_pointer(void) +{ + GdkWindow *root_window = NULL; + GdkPixmap *blank_mask; + GdkCursor *cursor; + GdkColor color = { 0, 0, 0, 0 }; + char blank_data[] = { 0x0 }; + +#ifdef HAVE_GTK_MULTIHEAD + root_window = gtk_widget_get_root_window(gui.mainwin); +#endif + + /* Create a pseudo blank pointer, which is in fact one pixel by one pixel + * in size. */ + blank_mask = gdk_bitmap_create_from_data(root_window, blank_data, 1, 1); + cursor = gdk_cursor_new_from_pixmap(blank_mask, blank_mask, + &color, &color, 0, 0); + gdk_bitmap_unref(blank_mask); + + return cursor; +} + +#ifdef HAVE_GTK_MULTIHEAD +/*ARGSUSED1*/ + static void +mainwin_screen_changed_cb(GtkWidget *widget, + GdkScreen *previous_screen, + gpointer data) +{ + if (!gtk_widget_has_screen(widget)) + return; + + /* + * Recreate the invisble mouse cursor. + */ + if (gui.blank_pointer != NULL) + gdk_cursor_unref(gui.blank_pointer); + + gui.blank_pointer = create_blank_pointer(); + + if (gui.pointer_hidden && gui.drawarea->window != NULL) + gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer); + + /* + * Create a new PangoContext for this screen, and initialize it + * with the current font if necessary. + */ + if (gui.text_context != NULL) + g_object_unref(gui.text_context); + + gui.text_context = gtk_widget_create_pango_context(widget); + pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR); + + if (gui.norm_font != NULL) + { + gui_mch_init_font(p_guifont, 0); + gui_set_shellsize(FALSE, FALSE); + } +} +#endif /* HAVE_GTK_MULTIHEAD */ + +/* + * After the drawing area comes up, we calculate all colors and create the + * dummy blank cursor. + * + * Don't try to set any VIM scrollbar sizes anywhere here. I'm relying on the + * fact that the main VIM engine doesn't take them into account anywhere. + */ +/*ARGSUSED1*/ + static void +drawarea_realize_cb(GtkWidget *widget, gpointer data) +{ + GtkWidget *sbar; + +#ifdef FEAT_XIM + xim_init(); +#endif + gui_mch_new_colors(); + gui.text_gc = gdk_gc_new(gui.drawarea->window); + + gui.blank_pointer = create_blank_pointer(); + if (gui.pointer_hidden) + gdk_window_set_cursor(widget->window, gui.blank_pointer); + + /* get the actual size of the scrollbars, if they are realized */ + sbar = firstwin->w_scrollbars[SBAR_LEFT].id; + if (!sbar || (!gui.which_scrollbars[SBAR_LEFT] + && firstwin->w_scrollbars[SBAR_RIGHT].id)) + sbar = firstwin->w_scrollbars[SBAR_RIGHT].id; + if (sbar && GTK_WIDGET_REALIZED(sbar) && sbar->allocation.width) + gui.scrollbar_width = sbar->allocation.width; + + sbar = gui.bottom_sbar.id; + if (sbar && GTK_WIDGET_REALIZED(sbar) && sbar->allocation.height) + gui.scrollbar_height = sbar->allocation.height; +} + +/* + * Properly clean up on shutdown. + */ +/*ARGSUSED0*/ + static void +drawarea_unrealize_cb(GtkWidget *widget, gpointer data) +{ + /* Don't write messages to the GUI anymore */ + full_screen = FALSE; + +#ifdef FEAT_XIM + im_shutdown(); +#endif +#ifdef HAVE_GTK2 + if (gui.ascii_glyphs != NULL) + { + pango_glyph_string_free(gui.ascii_glyphs); + gui.ascii_glyphs = NULL; + } + if (gui.ascii_font != NULL) + { + g_object_unref(gui.ascii_font); + gui.ascii_font = NULL; + } + g_object_unref(gui.text_context); + gui.text_context = NULL; + + g_object_unref(gui.text_gc); + gui.text_gc = NULL; + + gdk_cursor_unref(gui.blank_pointer); + gui.blank_pointer = NULL; +#else + gdk_gc_unref(gui.text_gc); + gui.text_gc = NULL; + + gdk_cursor_destroy(gui.blank_pointer); + gui.blank_pointer = NULL; +#endif +} + +/*ARGSUSED0*/ + static void +drawarea_style_set_cb(GtkWidget *widget, + GtkStyle *previous_style, + gpointer data) +{ + gui_mch_new_colors(); +} + +/* + * Callback routine for the "delete_event" signal on the toplevel window. + * Tries to vim gracefully, or refuses to exit with changed buffers. + */ +/*ARGSUSED*/ + static gint +delete_event_cb(GtkWidget *widget, GdkEventAny *event, gpointer data) +{ + gui_shell_closed(); + return TRUE; +} + +#ifdef FEAT_TOOLBAR + +# ifdef HAVE_GTK2 +/* + * This extra effort wouldn't be necessary if we only used stock icons in the + * toolbar, as we do for all builtin icons. But user-defined toolbar icons + * shouldn't be treated differently, thus we do need this. + */ + static void +icon_size_changed_foreach(GtkWidget *widget, gpointer user_data) +{ + if (GTK_IS_IMAGE(widget)) + { + GtkImage *image = (GtkImage *)widget; + + /* User-defined icons are stored in a GtkIconSet */ + if (gtk_image_get_storage_type(image) == GTK_IMAGE_ICON_SET) + { + GtkIconSet *icon_set; + GtkIconSize icon_size; + + gtk_image_get_icon_set(image, &icon_set, &icon_size); + icon_size = (GtkIconSize)(long)user_data; + + gtk_icon_set_ref(icon_set); + gtk_image_set_from_icon_set(image, icon_set, icon_size); + gtk_icon_set_unref(icon_set); + } + } + else if (GTK_IS_CONTAINER(widget)) + { + gtk_container_foreach((GtkContainer *)widget, + &icon_size_changed_foreach, + user_data); + } +} +# endif /* HAVE_GTK2 */ + + static void +set_toolbar_style(GtkToolbar *toolbar) +{ + GtkToolbarStyle style; +# ifdef HAVE_GTK2 + GtkIconSize size; + GtkIconSize oldsize; +# endif + +# ifdef HAVE_GTK2 + if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ)) + == (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ)) + style = GTK_TOOLBAR_BOTH_HORIZ; + else +# endif + if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS)) + == (TOOLBAR_TEXT | TOOLBAR_ICONS)) + style = GTK_TOOLBAR_BOTH; + else if (toolbar_flags & TOOLBAR_TEXT) + style = GTK_TOOLBAR_TEXT; + else + style = GTK_TOOLBAR_ICONS; + + gtk_toolbar_set_style(toolbar, style); + gtk_toolbar_set_tooltips(toolbar, (toolbar_flags & TOOLBAR_TOOLTIPS) != 0); + +# ifdef HAVE_GTK2 + switch (tbis_flags) + { + case TBIS_TINY: size = GTK_ICON_SIZE_MENU; break; + case TBIS_SMALL: size = GTK_ICON_SIZE_SMALL_TOOLBAR; break; + case TBIS_MEDIUM: size = GTK_ICON_SIZE_BUTTON; break; + case TBIS_LARGE: size = GTK_ICON_SIZE_LARGE_TOOLBAR; break; + default: size = GTK_ICON_SIZE_INVALID; break; + } + oldsize = gtk_toolbar_get_icon_size(toolbar); + + if (size == GTK_ICON_SIZE_INVALID) + { + /* Let global user preferences decide the icon size. */ + gtk_toolbar_unset_icon_size(toolbar); + size = gtk_toolbar_get_icon_size(toolbar); + } + if (size != oldsize) + { + gtk_container_foreach(GTK_CONTAINER(toolbar), + &icon_size_changed_foreach, + GINT_TO_POINTER((int)size)); + } + gtk_toolbar_set_icon_size(toolbar, size); +# endif +} + +#endif /* FEAT_TOOLBAR */ + +/* + * Initialize the GUI. Create all the windows, set up all the callbacks etc. + * Returns OK for success, FAIL when the GUI can't be started. + */ + int +gui_mch_init(void) +{ + GtkWidget *vbox; + +#ifdef FEAT_GUI_GNOME + /* Initialize the GNOME libraries. gnome_program_init()/gnome_init() + * exits on failure, but that's a non-issue because we already called + * gtk_init_check() in gui_mch_init_check(). */ + if (using_gnome) +# ifdef HAVE_GTK2 + gnome_program_init(VIMPACKAGE, VIM_VERSION_SHORT, + LIBGNOMEUI_MODULE, gui_argc, gui_argv, NULL); +# else + gnome_init(VIMPACKAGE, VIM_VERSION_SHORT, gui_argc, gui_argv); +# endif +#endif + vim_free(gui_argv); + gui_argv = NULL; + +#ifdef HAVE_GTK2 +# if GLIB_CHECK_VERSION(2,1,3) + /* Set the human-readable application name */ + g_set_application_name("Vim"); +# endif + /* + * Force UTF-8 output no matter what the value of 'encoding' is. + * did_set_string_option() in option.c prohibits changing 'termencoding' + * to something else than UTF-8 if the GUI is in use. + */ + set_option_value((char_u *)"termencoding", 0L, (char_u *)"utf-8", 0); + +# ifdef FEAT_TOOLBAR + gui_gtk_register_stock_icons(); +# endif + /* FIXME: Need to install the classic icons and a gtkrc.classic file. + * The hard part is deciding install locations and the Makefile magic. */ +# if 0 + gtk_rc_parse("gtkrc"); +# endif +#endif + + /* Initialize values */ + gui.border_width = 2; + gui.scrollbar_width = SB_DEFAULT_WIDTH; + gui.scrollbar_height = SB_DEFAULT_WIDTH; + gui.fgcolor = g_new0(GdkColor, 1); + gui.bgcolor = g_new0(GdkColor, 1); + + /* Initialise atoms */ +#ifdef FEAT_MBYTE + utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE); +#endif +#ifndef HAVE_GTK2 + compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE); + text_atom = gdk_atom_intern("TEXT", FALSE); +#endif + + /* Set default foreground and background colors. */ + gui.norm_pixel = gui.def_norm_pixel; + gui.back_pixel = gui.def_back_pixel; + + if (gtk_socket_id != 0) + { + GtkWidget *plug; + + /* Use GtkSocket from another app. */ +#ifdef HAVE_GTK_MULTIHEAD + plug = gtk_plug_new_for_display(gdk_display_get_default(), + gtk_socket_id); +#else + plug = gtk_plug_new(gtk_socket_id); +#endif + if (plug != NULL && GTK_PLUG(plug)->socket_window != NULL) + { + gui.mainwin = plug; + } + else + { + g_warning("Connection to GTK+ socket (ID %u) failed", + (unsigned int)gtk_socket_id); + /* Pretend we never wanted it if it failed (get own window) */ + gtk_socket_id = 0; + } + } + + if (gtk_socket_id == 0) + { +#ifdef FEAT_GUI_GNOME + if (using_gnome) + { + gui.mainwin = gnome_app_new("Vim", NULL); +# ifdef USE_XSMP + /* Use the GNOME save-yourself functionality now. */ + xsmp_close(); +# endif + } + else +#endif + gui.mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL); + } + + gtk_widget_set_name(gui.mainwin, "vim-main-window"); + +#ifdef HAVE_GTK2 + /* Create the PangoContext used for drawing all text. */ + gui.text_context = gtk_widget_create_pango_context(gui.mainwin); + pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR); +#endif + +#ifndef HAVE_GTK2 + gtk_window_set_policy(GTK_WINDOW(gui.mainwin), TRUE, TRUE, TRUE); +#endif + gtk_container_border_width(GTK_CONTAINER(gui.mainwin), 0); + gtk_widget_add_events(gui.mainwin, GDK_VISIBILITY_NOTIFY_MASK); + + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "delete_event", + GTK_SIGNAL_FUNC(&delete_event_cb), NULL); + + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "realize", + GTK_SIGNAL_FUNC(&mainwin_realize), NULL); +#ifdef HAVE_GTK_MULTIHEAD + g_signal_connect(G_OBJECT(gui.mainwin), "screen_changed", + G_CALLBACK(&mainwin_screen_changed_cb), NULL); +#endif +#ifdef HAVE_GTK2 + gui.accel_group = gtk_accel_group_new(); + gtk_window_add_accel_group(GTK_WINDOW(gui.mainwin), gui.accel_group); +#else + gui.accel_group = gtk_accel_group_get_default(); +#endif + + vbox = gtk_vbox_new(FALSE, 0); + +#ifdef FEAT_GUI_GNOME + if (using_gnome) + { +# if defined(HAVE_GTK2) && defined(FEAT_MENU) + /* automagically restore menubar/toolbar placement */ + gnome_app_enable_layout_config(GNOME_APP(gui.mainwin), TRUE); +# endif + gnome_app_set_contents(GNOME_APP(gui.mainwin), vbox); + } + else +#endif + { + gtk_container_add(GTK_CONTAINER(gui.mainwin), vbox); + gtk_widget_show(vbox); + } + +#ifdef FEAT_MENU + /* + * Create the menubar and handle + */ + gui.menubar = gtk_menu_bar_new(); + gtk_widget_set_name(gui.menubar, "vim-menubar"); + +# ifdef FEAT_GUI_GNOME + if (using_gnome) + { +# ifdef HAVE_GTK2 + BonoboDockItem *dockitem; + + gnome_app_set_menus(GNOME_APP(gui.mainwin), GTK_MENU_BAR(gui.menubar)); + dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin), + GNOME_APP_MENUBAR_NAME); + gui.menubar_h = GTK_WIDGET(dockitem); +# else + gui.menubar_h = gnome_dock_item_new("VimMainMenu", + GNOME_DOCK_ITEM_BEH_EXCLUSIVE | + GNOME_DOCK_ITEM_BEH_NEVER_VERTICAL); + gtk_container_add(GTK_CONTAINER(gui.menubar_h), gui.menubar); + + gnome_dock_add_item(GNOME_DOCK(GNOME_APP(gui.mainwin)->dock), + GNOME_DOCK_ITEM(gui.menubar_h), + GNOME_DOCK_TOP, /* placement */ + 1, /* band_num */ + 0, /* band_position */ + 0, /* offset */ + TRUE); + gtk_widget_show(gui.menubar); +# endif + } + else +# endif /* FEAT_GUI_GNOME */ + { + if (vim_strchr(p_go, GO_MENUS) != NULL) + gtk_widget_show(gui.menubar); + gtk_box_pack_start(GTK_BOX(vbox), gui.menubar, FALSE, FALSE, 0); + } +#endif /* FEAT_MENU */ + +#ifdef FEAT_TOOLBAR + /* + * Create the toolbar and handle + */ +# ifdef HAVE_GTK2 + /* some aesthetics on the toolbar */ + gtk_rc_parse_string( + "style \"vim-toolbar-style\" {\n" + " GtkToolbar::button_relief = GTK_RELIEF_NONE\n" + "}\n" + "widget \"*.vim-toolbar\" style \"vim-toolbar-style\"\n"); + gui.toolbar = gtk_toolbar_new(); + gtk_widget_set_name(gui.toolbar, "vim-toolbar"); +# else + gui.toolbar = gtk_toolbar_new(GTK_ORIENTATION_HORIZONTAL, + GTK_TOOLBAR_ICONS); + gtk_toolbar_set_button_relief(GTK_TOOLBAR(gui.toolbar), GTK_RELIEF_NONE); +# endif + set_toolbar_style(GTK_TOOLBAR(gui.toolbar)); + +# ifdef FEAT_GUI_GNOME + if (using_gnome) + { +# ifdef HAVE_GTK2 + BonoboDockItem *dockitem; + + gnome_app_set_toolbar(GNOME_APP(gui.mainwin), GTK_TOOLBAR(gui.toolbar)); + dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin), + GNOME_APP_TOOLBAR_NAME); + gui.toolbar_h = GTK_WIDGET(dockitem); + gtk_container_set_border_width(GTK_CONTAINER(gui.toolbar), 0); +# else + GtkWidget *dockitem; + + dockitem = gnome_dock_item_new("VimToolBar", + GNOME_DOCK_ITEM_BEH_EXCLUSIVE); + gtk_container_add(GTK_CONTAINER(dockitem), GTK_WIDGET(gui.toolbar)); + gui.toolbar_h = dockitem; + + gnome_dock_add_item(GNOME_DOCK(GNOME_APP(gui.mainwin)->dock), + GNOME_DOCK_ITEM(dockitem), + GNOME_DOCK_TOP, /* placement */ + 1, /* band_num */ + 1, /* band_position */ + 0, /* offset */ + TRUE); + gtk_container_border_width(GTK_CONTAINER(gui.toolbar), 2); + gtk_widget_show(gui.toolbar); +# endif + } + else +# endif /* FEAT_GUI_GNOME */ + { +# ifndef HAVE_GTK2 + gtk_container_border_width(GTK_CONTAINER(gui.toolbar), 1); +# endif + if (vim_strchr(p_go, GO_TOOLBAR) != NULL + && (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS))) + gtk_widget_show(gui.toolbar); + gtk_box_pack_start(GTK_BOX(vbox), gui.toolbar, FALSE, FALSE, 0); + } +#endif /* FEAT_TOOLBAR */ + + gui.formwin = gtk_form_new(); + gtk_container_border_width(GTK_CONTAINER(gui.formwin), 0); + gtk_widget_set_events(gui.formwin, GDK_EXPOSURE_MASK); + + gui.drawarea = gtk_drawing_area_new(); + + /* Determine which events we will filter. */ + gtk_widget_set_events(gui.drawarea, + GDK_EXPOSURE_MASK | + GDK_ENTER_NOTIFY_MASK | + GDK_LEAVE_NOTIFY_MASK | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | +#ifdef HAVE_GTK2 + GDK_SCROLL_MASK | +#endif + GDK_KEY_PRESS_MASK | + GDK_KEY_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | + GDK_POINTER_MOTION_HINT_MASK); + + gtk_widget_show(gui.drawarea); + gtk_form_put(GTK_FORM(gui.formwin), gui.drawarea, 0, 0); + gtk_widget_show(gui.formwin); + gtk_box_pack_start(GTK_BOX(vbox), gui.formwin, TRUE, TRUE, 0); + + /* For GtkSockets, key-presses must go to the focus widget (drawarea) + * and not the window. */ + gtk_signal_connect((gtk_socket_id == 0) ? GTK_OBJECT(gui.mainwin) + : GTK_OBJECT(gui.drawarea), + "key_press_event", + GTK_SIGNAL_FUNC(key_press_event), NULL); +#if defined(FEAT_XIM) && defined(HAVE_GTK2) + /* Also forward key release events for the benefit of GTK+ 2 input + * modules. Try CTRL-SHIFT-xdigits to enter a Unicode code point. */ + g_signal_connect((gtk_socket_id == 0) ? G_OBJECT(gui.mainwin) + : G_OBJECT(gui.drawarea), + "key_release_event", + G_CALLBACK(&key_release_event), NULL); +#endif + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "realize", + GTK_SIGNAL_FUNC(drawarea_realize_cb), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "unrealize", + GTK_SIGNAL_FUNC(drawarea_unrealize_cb), NULL); + + gtk_signal_connect_after(GTK_OBJECT(gui.drawarea), "style_set", + GTK_SIGNAL_FUNC(&drawarea_style_set_cb), NULL); + + gui.visibility = GDK_VISIBILITY_UNOBSCURED; + +#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)) + wm_protocols_atom = gdk_atom_intern("WM_PROTOCOLS", FALSE); + save_yourself_atom = gdk_atom_intern("WM_SAVE_YOURSELF", FALSE); +#endif + + if (gtk_socket_id != 0) + /* make sure keybord input can go to the drawarea */ + GTK_WIDGET_SET_FLAGS(gui.drawarea, GTK_CAN_FOCUS); + + /* + * Set clipboard specific atoms + */ + vim_atom = gdk_atom_intern(VIM_ATOM_NAME, FALSE); +#ifdef FEAT_MBYTE + vimenc_atom = gdk_atom_intern(VIMENC_ATOM_NAME, FALSE); +#endif + clip_star.gtk_sel_atom = GDK_SELECTION_PRIMARY; + clip_plus.gtk_sel_atom = gdk_atom_intern("CLIPBOARD", FALSE); + + /* + * Start out by adding the configured border width into the border offset. + */ + gui.border_offset = gui.border_width; + + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "visibility_notify_event", + GTK_SIGNAL_FUNC(visibility_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "expose_event", + GTK_SIGNAL_FUNC(expose_event), NULL); + + /* + * Only install these enter/leave callbacks when 'p' in 'guioptions'. + * Only needed for some window managers. + */ + if (vim_strchr(p_go, GO_POINTER) != NULL) + { + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "leave_notify_event", + GTK_SIGNAL_FUNC(leave_notify_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "enter_notify_event", + GTK_SIGNAL_FUNC(enter_notify_event), NULL); + } + + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "focus_out_event", + GTK_SIGNAL_FUNC(focus_out_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "focus_in_event", + GTK_SIGNAL_FUNC(focus_in_event), NULL); + + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "motion_notify_event", + GTK_SIGNAL_FUNC(motion_notify_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "button_press_event", + GTK_SIGNAL_FUNC(button_press_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "button_release_event", + GTK_SIGNAL_FUNC(button_release_event), NULL); +#ifdef HAVE_GTK2 + g_signal_connect(G_OBJECT(gui.drawarea), "scroll_event", + G_CALLBACK(&scroll_event), NULL); +#endif + + /* + * Add selection handler functions. + */ + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_clear_event", + GTK_SIGNAL_FUNC(selection_clear_event), NULL); + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_received", + GTK_SIGNAL_FUNC(selection_received_cb), NULL); + + /* + * Add selection targets for PRIMARY and CLIPBOARD selections. + */ + gtk_selection_add_targets(gui.drawarea, + (GdkAtom)GDK_SELECTION_PRIMARY, + selection_targets, N_SELECTION_TARGETS); + gtk_selection_add_targets(gui.drawarea, + (GdkAtom)clip_plus.gtk_sel_atom, + selection_targets, N_SELECTION_TARGETS); + + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_get", + GTK_SIGNAL_FUNC(selection_get_cb), NULL); + + /* Pretend we don't have input focus, we will get an event if we do. */ + gui.in_focus = FALSE; + +#ifdef FEAT_NETBEANS_INTG + if (usingNetbeans) + netbeans_gtk_connect(); +# endif + + return OK; +} + +#if (defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)) || defined(PROTO) +/* + * This is called from gui_start() after a fork() has been done. + * We have to tell the session manager our new PID. + */ + void +gui_mch_forked(void) +{ + if (using_gnome) + { + GnomeClient *client; + + client = gnome_master_client(); + + if (client != NULL) + gnome_client_set_process_id(client, getpid()); + } +} +#endif /* FEAT_GUI_GNOME && FEAT_SESSION */ + +/* + * Called when the foreground or background color has been changed. + * This used to change the graphics contexts directly but we are + * currently manipulating them where desired. + */ + void +gui_mch_new_colors(void) +{ + if (gui.drawarea != NULL && gui.drawarea->window != NULL) + { + GdkColor color = { 0, 0, 0, 0 }; + + color.pixel = gui.back_pixel; + gdk_window_set_background(gui.drawarea->window, &color); + } +} + +#if defined(FEAT_MENU) || defined(FEAT_TOOLBAR) + static int +get_item_dimensions(GtkWidget *widget, GtkOrientation orientation) +{ + GtkOrientation item_orientation = GTK_ORIENTATION_HORIZONTAL; + +#ifdef FEAT_GUI_GNOME + if (using_gnome && widget != NULL) + { +# ifdef HAVE_GTK2 + BonoboDockItem *dockitem; + + widget = gtk_widget_get_parent(widget); + dockitem = BONOBO_DOCK_ITEM(widget); + + if (dockitem == NULL || dockitem->is_floating) + return 0; + item_orientation = bonobo_dock_item_get_orientation(dockitem); +# else + GnomeDockItem *dockitem; + + widget = widget->parent; + dockitem = GNOME_DOCK_ITEM(widget); + + if (dockitem == NULL || dockitem->is_floating) + return 0; + item_orientation = gnome_dock_item_get_orientation(dockitem); +# endif + } +#endif + if (widget != NULL + && item_orientation == orientation + && GTK_WIDGET_REALIZED(widget) + && GTK_WIDGET_VISIBLE(widget)) + { + if (orientation == GTK_ORIENTATION_HORIZONTAL) + return widget->allocation.height; + else + return widget->allocation.width; + } + return 0; +} +#endif + + static int +get_menu_tool_width(void) +{ + int width = 0; + +#ifdef FEAT_GUI_GNOME /* these are never vertical without GNOME */ +# ifdef FEAT_MENU + width += get_item_dimensions(gui.menubar, GTK_ORIENTATION_VERTICAL); +# endif +# ifdef FEAT_TOOLBAR + width += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_VERTICAL); +# endif +#endif + + return width; +} + + static int +get_menu_tool_height(void) +{ + int height = 0; + +#ifdef FEAT_MENU + height += get_item_dimensions(gui.menubar, GTK_ORIENTATION_HORIZONTAL); +#endif +#ifdef FEAT_TOOLBAR + height += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_HORIZONTAL); +#endif + + return height; +} + + static void +update_window_manager_hints(void) +{ + static int old_width = 0; + static int old_height = 0; + static int old_char_width = 0; + static int old_char_height = 0; + + int width; + int height; + + /* This also needs to be done when the main window isn't there yet, + * otherwise the hints don't work. */ + width = gui_get_base_width(); + height = gui_get_base_height(); +# ifdef HAVE_GTK2 + width += get_menu_tool_width(); + height += get_menu_tool_height(); +# endif + + /* Avoid an expose event when the size didn't change. */ + if (width != old_width + || height != old_height + || gui.char_width != old_char_width + || gui.char_height != old_char_height) + { + GdkGeometry geometry; + GdkWindowHints geometry_mask; + + geometry.width_inc = gui.char_width; + geometry.height_inc = gui.char_height; + geometry.base_width = width; + geometry.base_height = height; + geometry.min_width = width + MIN_COLUMNS * gui.char_width; + geometry.min_height = height + MIN_LINES * gui.char_height; + geometry_mask = GDK_HINT_BASE_SIZE|GDK_HINT_RESIZE_INC + |GDK_HINT_MIN_SIZE; +# ifdef HAVE_GTK2 + /* Using gui.formwin as geometry widget doesn't work as expected + * with GTK+ 2 -- dunno why. Presumably all the resizing hacks + * in Vim confuse GTK+. */ + gtk_window_set_geometry_hints(GTK_WINDOW(gui.mainwin), gui.mainwin, + &geometry, geometry_mask); +# else + gtk_window_set_geometry_hints(GTK_WINDOW(gui.mainwin), gui.formwin, + &geometry, geometry_mask); +# endif + old_width = width; + old_height = height; + old_char_width = gui.char_width; + old_char_height = gui.char_height; + } +} + +/* + * This signal informs us about the need to rearrange our sub-widgets. + */ +/*ARGSUSED*/ + static gint +form_configure_event(GtkWidget *widget, GdkEventConfigure *event, + gpointer data) +{ + gtk_form_freeze(GTK_FORM(gui.formwin)); + gui_resize_shell(event->width, event->height); + gtk_form_thaw(GTK_FORM(gui.formwin)); + + return TRUE; +} + +/* + * Function called when window already closed. + * We can't do much more here than to trying to preserve what had been done, + * since the window is already inevitably going away. + */ +/*ARGSUSED0*/ + static void +mainwin_destroy_cb(GtkObject *object, gpointer data) +{ + /* Don't write messages to the GUI anymore */ + full_screen = FALSE; + + gui.mainwin = NULL; + gui.drawarea = NULL; + + if (!exiting) /* only do anything if the destroy was unexpected */ + { + STRNCPY(IObuff, _("Vim: Main window unexpectedly destroyed\n"), + IOSIZE); + IObuff[IOSIZE - 1] = NUL; + preserve_exit(); + } +} + +/* + * Open the GUI window which was created by a call to gui_mch_init(). + */ + int +gui_mch_open(void) +{ + guicolor_T fg_pixel = INVALCOLOR; + guicolor_T bg_pixel = INVALCOLOR; + +#ifdef HAVE_GTK2 + /* + * Allow setting a window role on the command line, or invent one + * if none was specified. This is mainly useful for GNOME session + * support; allowing the WM to restore window placement. + */ + if (role_argument != NULL) + { + gtk_window_set_role(GTK_WINDOW(gui.mainwin), role_argument); + } + else + { + char *role; + + /* Invent a unique-enough ID string for the role */ + role = g_strdup_printf("vim-%u-%u-%u", + (unsigned)mch_get_pid(), + (unsigned)g_random_int(), + (unsigned)time(NULL)); + + gtk_window_set_role(GTK_WINDOW(gui.mainwin), role); + g_free(role); + } +#endif + + if (gui_win_x != -1 && gui_win_y != -1) +#ifdef HAVE_GTK2 + gtk_window_move(GTK_WINDOW(gui.mainwin), gui_win_x, gui_win_y); +#else + gtk_widget_set_uposition(gui.mainwin, gui_win_x, gui_win_y); +#endif + + /* Determine user specified geometry, if present. */ + if (gui.geom != NULL) + { + int mask; + unsigned int w, h; + int x = 0; + int y = 0; + + mask = XParseGeometry((char *)gui.geom, &x, &y, &w, &h); + + if (mask & WidthValue) + Columns = w; + if (mask & HeightValue) + Rows = h; + if (mask & (XValue | YValue)) +#ifdef HAVE_GTK2 + gtk_window_move(GTK_WINDOW(gui.mainwin), x, y); +#else + gtk_widget_set_uposition(gui.mainwin, x, y); +#endif + vim_free(gui.geom); + gui.geom = NULL; + } + + gtk_form_set_size(GTK_FORM(gui.formwin), + (guint)(gui_get_base_width() + Columns * gui.char_width), + (guint)(gui_get_base_height() + Rows * gui.char_height)); + update_window_manager_hints(); + + if (foreground_argument != NULL) + fg_pixel = gui_get_color((char_u *)foreground_argument); + if (fg_pixel == INVALCOLOR) + fg_pixel = gui_get_color((char_u *)"Black"); + + if (background_argument != NULL) + bg_pixel = gui_get_color((char_u *)background_argument); + if (bg_pixel == INVALCOLOR) + bg_pixel = gui_get_color((char_u *)"White"); + + if (found_reverse_arg) + { + gui.def_norm_pixel = bg_pixel; + gui.def_back_pixel = fg_pixel; + } + else + { + gui.def_norm_pixel = fg_pixel; + gui.def_back_pixel = bg_pixel; + } + + /* Get the colors from the "Normal" and "Menu" group (set in syntax.c or + * in a vimrc file) */ + set_normal_colors(); + + /* Check that none of the colors are the same as the background color */ + gui_check_colors(); + + /* Get the colors for the highlight groups (gui_check_colors() might have + * changed them). */ + highlight_gui_started(); /* re-init colors and fonts */ + + gtk_signal_connect(GTK_OBJECT(gui.mainwin), "destroy", + GTK_SIGNAL_FUNC(mainwin_destroy_cb), NULL); + +#ifdef FEAT_HANGULIN + hangul_keyboard_set(); +#endif + + /* + * Notify the fixed area about the need to resize the contents of the + * gui.formwin, which we use for random positioning of the included + * components. + * + * We connect this signal deferred finally after anything is in place, + * since this is intended to handle resizements coming from the window + * manager upon us and should not interfere with what VIM is requesting + * upon startup. + */ + gtk_signal_connect(GTK_OBJECT(gui.formwin), "configure_event", + GTK_SIGNAL_FUNC(form_configure_event), NULL); + +#ifdef FEAT_DND + /* + * Set up for receiving DND items. + */ + gtk_drag_dest_set(gui.drawarea, + GTK_DEST_DEFAULT_ALL, + dnd_targets, N_DND_TARGETS, + GDK_ACTION_COPY); + + gtk_signal_connect(GTK_OBJECT(gui.drawarea), "drag_data_received", + GTK_SIGNAL_FUNC(drag_data_received_cb), NULL); +#endif + +#ifdef HAVE_GTK2 + /* With GTK+ 2, we need to iconify the window before calling show() + * to avoid mapping the window for a short time. This is just as one + * would expect it to work, but it's different in GTK+ 1. The funny + * thing is that iconifying after show() _does_ work with GTK+ 1. + * (BTW doing this in the "realize" handler makes no difference.) */ + if (found_iconic_arg && gtk_socket_id == 0) + gui_mch_iconify(); +#endif + + { +#if defined(FEAT_GUI_GNOME) && defined(HAVE_GTK2) && defined(FEAT_MENU) + unsigned long menu_handler = 0; +# ifdef FEAT_TOOLBAR + unsigned long tool_handler = 0; +# endif + /* + * Urgh hackish :/ For some reason BonoboDockLayout always forces a + * show when restoring the saved layout configuration. We can't just + * hide the widgets again after gtk_widget_show(gui.mainwin) since it's + * a toplevel window and thus will be realized immediately. Instead, + * connect signal handlers to hide the widgets just after they've been + * marked visible, but before the main window is realized. + */ + if (using_gnome && vim_strchr(p_go, GO_MENUS) == NULL) + menu_handler = g_signal_connect_after(gui.menubar_h, "show", + G_CALLBACK(>k_widget_hide), + NULL); +# ifdef FEAT_TOOLBAR + if (using_gnome && vim_strchr(p_go, GO_TOOLBAR) == NULL + && (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS))) + tool_handler = g_signal_connect_after(gui.toolbar_h, "show", + G_CALLBACK(>k_widget_hide), + NULL); +# endif +#endif + gtk_widget_show(gui.mainwin); + +#if defined(FEAT_GUI_GNOME) && defined(HAVE_GTK2) && defined(FEAT_MENU) + if (menu_handler != 0) + g_signal_handler_disconnect(gui.menubar_h, menu_handler); +# ifdef FEAT_TOOLBAR + if (tool_handler != 0) + g_signal_handler_disconnect(gui.toolbar_h, tool_handler); +# endif +#endif + } + +#ifndef HAVE_GTK2 + /* With GTK+ 1, we need to iconify the window after calling show(). + * See the comment above for details. */ + if (found_iconic_arg && gtk_socket_id == 0) + gui_mch_iconify(); +#endif + + return OK; +} + + +/*ARGSUSED0*/ + void +gui_mch_exit(int rc) +{ + if (gui.mainwin != NULL) + gtk_widget_destroy(gui.mainwin); + + if (gtk_main_level() > 0) + gtk_main_quit(); +} + +/* + * Get the position of the top left corner of the window. + */ + int +gui_mch_get_winpos(int *x, int *y) +{ +#ifdef HAVE_GTK2 + gtk_window_get_position(GTK_WINDOW(gui.mainwin), x, y); +#else + /* For some people this must be gdk_window_get_origin() for a correct + * result. Where is the documentation! */ + gdk_window_get_root_origin(gui.mainwin->window, x, y); +#endif + return OK; +} + +/* + * Set the position of the top left corner of the window to the given + * coordinates. + */ + void +gui_mch_set_winpos(int x, int y) +{ +#ifdef HAVE_GTK2 + gtk_window_move(GTK_WINDOW(gui.mainwin), x, y); +#else + gdk_window_move(gui.mainwin->window, x, y); +#endif +} + +#ifdef HAVE_GTK2 +#if 0 +static int resize_idle_installed = FALSE; +/* + * Idle handler to force resize. Used by gui_mch_set_shellsize() to ensure + * the shell size doesn't exceed the window size, i.e. if the window manager + * ignored our size request. Usually this happens if the window is maximized. + * + * FIXME: It'd be nice if we could find a little more orthodox solution. + * See also the remark below in gui_mch_set_shellsize(). + * + * DISABLED: When doing ":set lines+=1" this function would first invoke + * gui_resize_shell() with the old size, then the normal callback would + * report the new size through form_configure_event(). That caused the window + * layout to be messed up. + */ +/*ARGSUSED0*/ + static gboolean +force_shell_resize_idle(gpointer data) +{ + if (gui.mainwin != NULL + && GTK_WIDGET_REALIZED(gui.mainwin) + && GTK_WIDGET_VISIBLE(gui.mainwin)) + { + int width; + int height; + + gtk_window_get_size(GTK_WINDOW(gui.mainwin), &width, &height); + + width -= get_menu_tool_width(); + height -= get_menu_tool_height(); + + gui_resize_shell(width, height); + } + + resize_idle_installed = FALSE; + return FALSE; /* don't call me again */ +} +#endif +#endif /* HAVE_GTK2 */ + +/* + * Set the windows size. + */ +/*ARGSUSED2*/ + void +gui_mch_set_shellsize(int width, int height, + int min_width, int min_height, + int base_width, int base_height) +{ +#ifndef HAVE_GTK2 + /* Hack: When the form already is at the desired size, the window might + * have been resized with the mouse. Force a resize by setting a + * different size first. */ + if (GTK_FORM(gui.formwin)->width == width + && GTK_FORM(gui.formwin)->height == height) + { + gtk_form_set_size(GTK_FORM(gui.formwin), width + 1, height + 1); + gui_mch_update(); + } + gtk_form_set_size(GTK_FORM(gui.formwin), width, height); +#endif + + /* give GTK+ a chance to put all widget's into place */ + gui_mch_update(); + + /* this will cause the proper resizement to happen too */ + update_window_manager_hints(); + +#ifdef HAVE_GTK2 + /* With GTK+ 2, changing the size of the form widget doesn't resize + * the window. So lets do it the other way around and resize the + * main window instead. */ + width += get_menu_tool_width(); + height += get_menu_tool_height(); + + gtk_window_resize(GTK_WINDOW(gui.mainwin), width, height); + +#if 0 + if (!resize_idle_installed) + { + g_idle_add_full(GDK_PRIORITY_EVENTS + 10, + &force_shell_resize_idle, NULL, NULL); + resize_idle_installed = TRUE; + } +#endif + /* + * Wait until all events are processed to prevent a crash because the + * real size of the drawing area doesn't reflect Vim's internal ideas. + * + * This is a bit of a hack, since Vim is a terminal application with a GUI + * on top, while the GUI expects to be the boss. + */ + gui_mch_update(); +#endif +} + + +/* + * The screen size is used to make sure the initial window doesn't get bigger + * than the screen. This subtracts some room for menubar, toolbar and window + * decorations. + */ + void +gui_mch_get_screen_dimensions(int *screen_w, int *screen_h) +{ +#ifdef HAVE_GTK_MULTIHEAD + GdkScreen* screen; + + if (gui.mainwin != NULL && gtk_widget_has_screen(gui.mainwin)) + screen = gtk_widget_get_screen(gui.mainwin); + else + screen = gdk_screen_get_default(); + + *screen_w = gdk_screen_get_width(screen); + *screen_h = gdk_screen_get_height(screen) - p_ghr; +#else + *screen_w = gdk_screen_width(); + /* Subtract 'guiheadroom' from the height to allow some room for the + * window manager (task list and window title bar). */ + *screen_h = gdk_screen_height() - p_ghr; +#endif + + /* + * FIXME: dirty trick: Because the gui_get_base_height() doesn't include + * the toolbar and menubar for GTK, we subtract them from the screen + * hight, so that the window size can be made to fit on the screen. + * This should be completely changed later. + */ + *screen_w -= get_menu_tool_width(); + *screen_h -= get_menu_tool_height(); +} + +#if defined(FEAT_TITLE) || defined(PROTO) +/*ARGSUSED*/ + void +gui_mch_settitle(char_u *title, char_u *icon) +{ +# ifdef HAVE_GTK2 + if (title != NULL && output_conv.vc_type != CONV_NONE) + title = string_convert(&output_conv, title, NULL); +# endif + + gtk_window_set_title(GTK_WINDOW(gui.mainwin), (const char *)title); + +# ifdef HAVE_GTK2 + if (output_conv.vc_type != CONV_NONE) + vim_free(title); +# endif +} +#endif /* FEAT_TITLE */ + +#if defined(FEAT_MENU) || defined(PROTO) + void +gui_mch_enable_menu(int showit) +{ + GtkWidget *widget; + +# ifdef FEAT_GUI_GNOME + if (using_gnome) + widget = gui.menubar_h; + else +# endif + widget = gui.menubar; + + if (!showit != !GTK_WIDGET_VISIBLE(widget)) + { + if (showit) + gtk_widget_show(widget); + else + gtk_widget_hide(widget); + + update_window_manager_hints(); + } +} +#endif /* FEAT_MENU */ + +#if defined(FEAT_TOOLBAR) || defined(PROTO) + void +gui_mch_show_toolbar(int showit) +{ + GtkWidget *widget; + + if (gui.toolbar == NULL) + return; + +# ifdef FEAT_GUI_GNOME + if (using_gnome) + widget = gui.toolbar_h; + else +# endif + widget = gui.toolbar; + + if (showit) + set_toolbar_style(GTK_TOOLBAR(gui.toolbar)); + + if (!showit != !GTK_WIDGET_VISIBLE(widget)) + { + if (showit) + gtk_widget_show(widget); + else + gtk_widget_hide(widget); + + update_window_manager_hints(); + } +} +#endif /* FEAT_TOOLBAR */ + +#ifndef HAVE_GTK2 +/* + * Get a font structure for highlighting. + * "cbdata" is a pointer to the global gui structure. + */ +/*ARGSUSED*/ + static void +font_sel_ok(GtkWidget *wgt, gpointer cbdata) +{ + gui_T *vw = (gui_T *)cbdata; + GtkFontSelectionDialog *fs = (GtkFontSelectionDialog *)vw->fontdlg; + + if (vw->fontname) + g_free(vw->fontname); + + vw->fontname = (char_u *)gtk_font_selection_dialog_get_font_name(fs); + gtk_widget_hide(vw->fontdlg); + if (gtk_main_level() > 0) + gtk_main_quit(); +} + +/*ARGSUSED*/ + static void +font_sel_cancel(GtkWidget *wgt, gpointer cbdata) +{ + gui_T *vw = (gui_T *)cbdata; + + gtk_widget_hide(vw->fontdlg); + if (gtk_main_level() > 0) + gtk_main_quit(); +} + +/*ARGSUSED*/ + static void +font_sel_destroy(GtkWidget *wgt, gpointer cbdata) +{ + gui_T *vw = (gui_T *)cbdata; + + vw->fontdlg = NULL; + if (gtk_main_level() > 0) + gtk_main_quit(); +} +#endif /* !HAVE_GTK2 */ + +#ifdef HAVE_GTK2 +/* + * Check if a given font is a CJK font. This is done in a very crude manner. It + * just see if U+04E00 for zh and ja and U+AC00 for ko are covered in a given + * font. Consequently, this function cannot be used as a general purpose check + * for CJK-ness for which fontconfig APIs should be used. This is only used by + * gui_mch_init_font() to deal with 'CJK fixed width fonts'. + */ + static int +is_cjk_font(PangoFontDescription *font_desc) +{ + static const char * const cjk_langs[] = + {"zh_CN", "zh_TW", "zh_HK", "ja", "ko"}; + + PangoFont *font; + unsigned i; + int is_cjk = FALSE; + + font = pango_context_load_font(gui.text_context, font_desc); + + if (font == NULL) + return FALSE; + + for (i = 0; !is_cjk && i < G_N_ELEMENTS(cjk_langs); ++i) + { + PangoCoverage *coverage; + gunichar uc; + + coverage = pango_font_get_coverage( + font, pango_language_from_string(cjk_langs[i])); + + if (coverage != NULL) + { + uc = (cjk_langs[i][0] == 'k') ? 0xAC00 : 0x4E00; + is_cjk = (pango_coverage_get(coverage, uc) == PANGO_COVERAGE_EXACT); + pango_coverage_unref(coverage); + } + } + + g_object_unref(font); + + return is_cjk; +} +#endif /* HAVE_GTK2 */ + + int +gui_mch_adjust_charsize(void) +{ +#ifdef HAVE_GTK2 + PangoFontMetrics *metrics; + int ascent; + int descent; + + metrics = pango_context_get_metrics(gui.text_context, gui.norm_font, + pango_context_get_language(gui.text_context)); + ascent = pango_font_metrics_get_ascent(metrics); + descent = pango_font_metrics_get_descent(metrics); + + pango_font_metrics_unref(metrics); + + gui.char_height = (ascent + descent + PANGO_SCALE - 1) / PANGO_SCALE + + p_linespace; + gui.char_ascent = PANGO_PIXELS(ascent + p_linespace * PANGO_SCALE / 2); + +#else /* !HAVE_GTK2 */ + + gui.char_height = gui.current_font->ascent + gui.current_font->descent + + p_linespace; + gui.char_ascent = gui.current_font->ascent + p_linespace / 2; + +#endif /* !HAVE_GTK2 */ + + /* A not-positive value of char_height may crash Vim. Only happens + * if 'linespace' is negative (which does make sense sometimes). */ + gui.char_ascent = MAX(gui.char_ascent, 0); + gui.char_height = MAX(gui.char_height, gui.char_ascent + 1); + + return OK; +} + +#if defined(FEAT_XFONTSET) || defined(PROTO) +/* + * Try to load the requested fontset. + */ +/*ARGSUSED2*/ + GuiFontset +gui_mch_get_fontset(char_u *name, int report_error, int fixed_width) +{ + GdkFont *font; + + if (!gui.in_use || name == NULL) + return NOFONT; + + font = gdk_fontset_load((gchar *)name); + + if (font == NULL) + { + if (report_error) + EMSG2(_(e_fontset), name); + return NOFONT; + } + /* TODO: check if the font is fixed width. */ + + /* reference this font as being in use */ + gdk_font_ref(font); + + return (GuiFontset)font; +} +#endif /* FEAT_XFONTSET */ + +#ifndef HAVE_GTK2 +/* + * Put up a font dialog and return the selected font name in allocated memory. + * "oldval" is the previous value. + * Return NULL when cancelled. + */ + char_u * +gui_mch_font_dialog(char_u *oldval) +{ + char_u *fontname = NULL; + + if (!gui.fontdlg) + { + GtkFontSelectionDialog *fsd = NULL; + + gui.fontdlg = gtk_font_selection_dialog_new(_("Font Selection")); + fsd = GTK_FONT_SELECTION_DIALOG(gui.fontdlg); + gtk_window_set_modal(GTK_WINDOW(gui.fontdlg), TRUE); + gtk_window_set_transient_for(GTK_WINDOW(gui.fontdlg), + GTK_WINDOW(gui.mainwin)); + gtk_signal_connect(GTK_OBJECT(gui.fontdlg), "destroy", + GTK_SIGNAL_FUNC(font_sel_destroy), &gui); + gtk_signal_connect(GTK_OBJECT(fsd->ok_button), "clicked", + GTK_SIGNAL_FUNC(font_sel_ok), &gui); + gtk_signal_connect(GTK_OBJECT(fsd->cancel_button), "clicked", + GTK_SIGNAL_FUNC(font_sel_cancel), &gui); + } + + if (oldval != NULL && *oldval != NUL) + gtk_font_selection_dialog_set_font_name( + GTK_FONT_SELECTION_DIALOG(gui.fontdlg), (char *)oldval); + + if (gui.fontname) + { + g_free(gui.fontname); + gui.fontname = NULL; + } + gtk_window_position(GTK_WINDOW(gui.fontdlg), GTK_WIN_POS_MOUSE); + gtk_widget_show(gui.fontdlg); + { + static gchar *spacings[] = {"c", "m", NULL}; + + /* In GTK 1.2.3 this must be after the gtk_widget_show() call, + * otherwise everything is blocked for ten seconds. */ + gtk_font_selection_dialog_set_filter( + GTK_FONT_SELECTION_DIALOG(gui.fontdlg), + GTK_FONT_FILTER_BASE, + GTK_FONT_ALL, NULL, NULL, + NULL, NULL, spacings, NULL); + } + + /* Wait for the font dialog to be closed. */ + while (gui.fontdlg && GTK_WIDGET_DRAWABLE(gui.fontdlg)) + gtk_main_iteration_do(TRUE); + + if (gui.fontname != NULL) + { + fontname = vim_strsave(gui.fontname); + g_free(gui.fontname); + gui.fontname = NULL; + } + return fontname; +} +#endif /* !HAVE_GTK2 */ + +#ifdef HAVE_GTK2 +/* + * Put up a font dialog and return the selected font name in allocated memory. + * "oldval" is the previous value. Return NULL when cancelled. + * This should probably go into gui_gtk.c. Hmm. + * FIXME: + * The GTK2 font selection dialog has no filtering API. So we could either + * a) implement our own (possibly copying the code from somewhere else) or + * b) just live with it. + */ + char_u * +gui_mch_font_dialog(char_u *oldval) +{ + GtkWidget *dialog; + int response; + char_u *fontname = NULL; + char_u *oldname; + + dialog = gtk_font_selection_dialog_new(NULL); + + gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(gui.mainwin)); + gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE); + + if (oldval != NULL && oldval[0] != NUL) + { + if (output_conv.vc_type != CONV_NONE) + oldname = string_convert(&output_conv, oldval, NULL); + else + oldname = oldval; + + /* Annoying bug in GTK (or Pango): if the font name does not include a + * size, zero is used. Use default point size ten. */ + if (!vim_isdigit(oldname[STRLEN(oldname) - 1])) + { + char_u *p = vim_strnsave(oldname, STRLEN(oldname) + 3); + + if (p != NULL) + { + STRCPY(p + STRLEN(p), " 10"); + if (oldname != oldval) + vim_free(oldname); + oldname = p; + } + } + + gtk_font_selection_dialog_set_font_name( + GTK_FONT_SELECTION_DIALOG(dialog), (const char *)oldname); + + if (oldname != oldval) + vim_free(oldval); + } + + response = gtk_dialog_run(GTK_DIALOG(dialog)); + + if (response == GTK_RESPONSE_OK) + { + char *name; + + name = gtk_font_selection_dialog_get_font_name( + GTK_FONT_SELECTION_DIALOG(dialog)); + if (name != NULL) + { + if (input_conv.vc_type != CONV_NONE) + fontname = string_convert(&input_conv, (char_u *)name, NULL); + else + fontname = vim_strsave((char_u *)name); + g_free(name); + } + } + + if (response != GTK_RESPONSE_NONE) + gtk_widget_destroy(dialog); + + return fontname; +} + +/* + * Some monospace fonts don't support a bold weight, and fall back + * silently to the regular weight. But this is no good since our text + * drawing function can emulate bold by overstriking. So let's try + * to detect whether bold weight is actually available and emulate it + * otherwise. + * + * Note that we don't need to check for italic style since Xft can + * emulate italic on its own, provided you have a proper fontconfig + * setup. We wouldn't be able to emulate it in Vim anyway. + */ + static void +get_styled_font_variants(void) +{ + PangoFontDescription *bold_font_desc; + PangoFont *plain_font; + PangoFont *bold_font; + + gui.font_can_bold = FALSE; + + plain_font = pango_context_load_font(gui.text_context, gui.norm_font); + + if (plain_font == NULL) + return; + + bold_font_desc = pango_font_description_copy_static(gui.norm_font); + pango_font_description_set_weight(bold_font_desc, PANGO_WEIGHT_BOLD); + + bold_font = pango_context_load_font(gui.text_context, bold_font_desc); + /* + * The comparison relies on the unique handle nature of a PangoFont*, + * i.e. it's assumed that a different PangoFont* won't refer to the + * same font. Seems to work, and failing here isn't critical anyway. + */ + if (bold_font != NULL) + { + gui.font_can_bold = (bold_font != plain_font); + g_object_unref(bold_font); + } + + pango_font_description_free(bold_font_desc); + g_object_unref(plain_font); +} + +#else /* !HAVE_GTK2 */ + +/* + * There is only one excuse I can give for the following attempt to manage font + * styles: + * + * I HATE THE BRAIN DEAD WAY X11 IS HANDLING FONTS (--mdcki) + * (Me too. --danielk) + */ + static void +get_styled_font_variants(char_u * font_name) +{ + char *chunk[32]; + char *sdup; + char *tmp; + int len, i; + GuiFont *styled_font[3]; + + styled_font[0] = &gui.bold_font; + styled_font[1] = &gui.ital_font; + styled_font[2] = &gui.boldital_font; + + /* First free whatever was freviously there. */ + for (i = 0; i < 3; ++i) + if (*styled_font[i]) + { + gdk_font_unref(*styled_font[i]); + *styled_font[i] = NULL; + } + + if ((sdup = g_strdup((const char *)font_name)) == NULL) + return; + + /* split up the whole */ + i = 0; + for (tmp = sdup; *tmp != '\0'; ++tmp) + { + if (*tmp == '-') + { + *tmp = '\0'; + + if (i == 32) + break; + + chunk[i] = tmp + 1; + ++i; + } + } + + if (i == 14) + { + GdkFont *font = NULL; + const char *bold_chunk[3] = { "bold", NULL, "bold" }; + const char *italic_chunk[3] = { NULL, "o", "o" }; + + /* font name was complete */ + len = strlen((const char *)font_name) + 32; + + for (i = 0; i < 3; ++i) + { + char *styled_name; + int j; + + styled_name = (char *)alloc(len); + if (styled_name == NULL) + { + g_free(sdup); + return; + } + + *styled_name = '\0'; + + for (j = 0; j < 14; ++j) + { + strcat(styled_name, "-"); + if (j == 2 && bold_chunk[i] != NULL) + strcat(styled_name, bold_chunk[i]); + else if (j == 3 && italic_chunk[i] != NULL) + strcat(styled_name, italic_chunk[i]); + else + strcat(styled_name, chunk[j]); + } + + font = gui_mch_get_font((char_u *)styled_name, FALSE); + if (font != NULL) + *styled_font[i] = font; + + vim_free(styled_name); + } + } + + g_free(sdup); +} +#endif /* !HAVE_GTK2 */ + +#ifdef HAVE_GTK2 +static PangoEngineShape *default_shape_engine = NULL; + +/* + * Create a map from ASCII characters in the range [32,126] to glyphs + * of the current font. This is used by gui_gtk2_draw_string() to skip + * the itemize and shaping process for the most common case. + */ + static void +ascii_glyph_table_init(void) +{ + char_u ascii_chars[128]; + PangoAttrList *attr_list; + GList *item_list; + int i; + + if (gui.ascii_glyphs != NULL) + pango_glyph_string_free(gui.ascii_glyphs); + if (gui.ascii_font != NULL) + g_object_unref(gui.ascii_font); + + gui.ascii_glyphs = NULL; + gui.ascii_font = NULL; + + /* For safety, fill in question marks for the control characters. */ + for (i = 0; i < 32; ++i) + ascii_chars[i] = '?'; + for (; i < 127; ++i) + ascii_chars[i] = i; + ascii_chars[i] = '?'; + + attr_list = pango_attr_list_new(); + item_list = pango_itemize(gui.text_context, (const char *)ascii_chars, + 0, sizeof(ascii_chars), attr_list, NULL); + + if (item_list != NULL && item_list->next == NULL) /* play safe */ + { + PangoItem *item; + int width; + + item = (PangoItem *)item_list->data; + width = gui.char_width * PANGO_SCALE; + + /* Remember the shape engine used for ASCII. */ + default_shape_engine = item->analysis.shape_engine; + + gui.ascii_font = item->analysis.font; + g_object_ref(gui.ascii_font); + + gui.ascii_glyphs = pango_glyph_string_new(); + + pango_shape((const char *)ascii_chars, sizeof(ascii_chars), + &item->analysis, gui.ascii_glyphs); + + g_return_if_fail(gui.ascii_glyphs->num_glyphs == sizeof(ascii_chars)); + + for (i = 0; i < gui.ascii_glyphs->num_glyphs; ++i) + { + PangoGlyphGeometry *geom; + + geom = &gui.ascii_glyphs->glyphs[i].geometry; + geom->x_offset += MAX(0, width - geom->width) / 2; + geom->width = width; + } + } + + g_list_foreach(item_list, (GFunc)&pango_item_free, NULL); + g_list_free(item_list); + pango_attr_list_unref(attr_list); +} +#endif /* HAVE_GTK2 */ + +/* + * Initialize Vim to use the font or fontset with the given name. + * Return FAIL if the font could not be loaded, OK otherwise. + */ +/*ARGSUSED1*/ + int +gui_mch_init_font(char_u *font_name, int fontset) +{ +#ifdef HAVE_GTK2 + PangoFontDescription *font_desc; + PangoLayout *layout; + int width; + + /* If font_name is NULL, this means to use the default, which should + * be present on all proper Pango/fontconfig installations. */ + if (font_name == NULL) + font_name = (char_u *)DEFAULT_FONT; + + font_desc = gui_mch_get_font(font_name, FALSE); + + if (font_desc == NULL) + return FAIL; + + gui_mch_free_font(gui.norm_font); + gui.norm_font = font_desc; + + pango_context_set_font_description(gui.text_context, font_desc); + + layout = pango_layout_new(gui.text_context); + pango_layout_set_text(layout, "MW", 2); + pango_layout_get_size(layout, &width, NULL); + /* + * Set char_width to half the width obtained from pango_layout_get_size() + * for CJK fixed_width/bi-width fonts. An unpatched version of Xft leads + * Pango to use the same width for both non-CJK characters (e.g. Latin + * letters and numbers) and CJK characters. This results in 's p a c e d + * o u t' rendering when a CJK 'fixed width' font is used. To work around + * that, divide the width returned by Pango by 2 if cjk_width is equal to + * width for CJK fonts. + * + * For related bugs, see: + * http://bugzilla.gnome.org/show_bug.cgi?id=106618 + * http://bugzilla.gnome.org/show_bug.cgi?id=106624 + * + * With this, for all four of the following cases, Vim works fine: + * guifont=CJK_fixed_width_font + * guifont=Non_CJK_fixed_font + * guifont=Non_CJK_fixed_font,CJK_Fixed_font + * guifont=Non_CJK_fixed_font guifontwide=CJK_fixed_font + */ + if (is_cjk_font(gui.norm_font)) + { + int cjk_width; + + /* Measure the text extent of U+4E00 and U+4E8C */ + pango_layout_set_text(layout, "\344\270\200\344\272\214", -1); + pango_layout_get_size(layout, &cjk_width, NULL); + + if (width == cjk_width) /* Xft not patched */ + width /= 2; + } + g_object_unref(layout); + + gui.char_width = (width / 2 + PANGO_SCALE - 1) / PANGO_SCALE; + + /* A zero width may cause a crash. Happens for semi-invalid fontsets. */ + if (gui.char_width <= 0) + gui.char_width = 8; + + gui_mch_adjust_charsize(); + + /* Set the fontname, which will be used for information purposes */ + hl_set_font_name(font_name); + + get_styled_font_variants(); + ascii_glyph_table_init(); + + /* Avoid unnecessary overhead if 'guifontwide' is equal to 'guifont'. */ + if (gui.wide_font != NULL + && pango_font_description_equal(gui.norm_font, gui.wide_font)) + { + pango_font_description_free(gui.wide_font); + gui.wide_font = NULL; + } + +#else /* !HAVE_GTK2 */ + + GdkFont *font = NULL; + +# ifdef FEAT_XFONTSET + /* Try loading a fontset. If this fails we try loading a normal font. */ + if (fontset && font_name != NULL) + font = gui_mch_get_fontset(font_name, TRUE, TRUE); + + if (font == NULL) +# endif + { + /* If font_name is NULL, this means to use the default, which should + * be present on all X11 servers. */ + if (font_name == NULL) + font_name = (char_u *)DEFAULT_FONT; + font = gui_mch_get_font(font_name, FALSE); + } + + if (font == NULL) + return FAIL; + + gui_mch_free_font(gui.norm_font); +# ifdef FEAT_XFONTSET + gui_mch_free_fontset(gui.fontset); + if (font->type == GDK_FONT_FONTSET) + { + gui.norm_font = NOFONT; + gui.fontset = (GuiFontset)font; + /* Use two bytes, this works around the problem that the result would + * be zero if no 8-bit font was found. */ + gui.char_width = gdk_string_width(font, "xW") / 2; + } + else +# endif + { + gui.norm_font = font; +# ifdef FEAT_XFONTSET + gui.fontset = NOFONTSET; +# endif + gui.char_width = ((XFontStruct *) + GDK_FONT_XFONT(font))->max_bounds.width; + } + + /* A zero width may cause a crash. Happens for semi-invalid fontsets. */ + if (gui.char_width <= 0) + gui.char_width = 8; + + gui.char_height = font->ascent + font->descent + p_linespace; + gui.char_ascent = font->ascent + p_linespace / 2; + + /* A not-positive value of char_height may crash Vim. Only happens + * if 'linespace' is negative (which does make sense sometimes). */ + gui.char_ascent = MAX(gui.char_ascent, 0); + gui.char_height = MAX(gui.char_height, gui.char_ascent + 1); + + /* Set the fontname, which will be used for information purposes */ + hl_set_font_name(font_name); + + if (font->type != GDK_FONT_FONTSET) + get_styled_font_variants(font_name); + + /* Synchronize the fonts used in user input dialogs, since otherwise + * search/replace will be esp. annoying in case of international font + * usage. + */ + gui_gtk_synch_fonts(); + +# ifdef FEAT_XIM + /* Adjust input management behaviour to the capabilities of the new + * fontset */ + xim_decide_input_style(); + if (xim_get_status_area_height()) + { + /* Status area is required. Just create the empty container so that + * mainwin will allocate the extra space for status area. */ + GtkWidget *alignment = gtk_alignment_new((gfloat)0.5, (gfloat)0.5, + (gfloat)1.0, (gfloat)1.0); + + gtk_widget_set_usize(alignment, 20, gui.char_height + 2); + gtk_box_pack_end(GTK_BOX(GTK_BIN(gui.mainwin)->child), + alignment, FALSE, FALSE, 0); + gtk_widget_show(alignment); + } +# endif +#endif /* !HAVE_GTK2 */ + + /* Preserve the logical dimensions of the screen. */ + update_window_manager_hints(); + + return OK; +} + +/* + * Get a reference to the font "name". + * Return zero for failure. + */ + GuiFont +gui_mch_get_font(char_u *name, int report_error) +{ +#ifdef HAVE_GTK2 + PangoFontDescription *font; +#else + GdkFont *font; +#endif + + /* can't do this when GUI is not running */ + if (!gui.in_use || name == NULL) + return NULL; + +#ifdef HAVE_GTK2 + if (output_conv.vc_type != CONV_NONE) + { + char_u *buf; + + buf = string_convert(&output_conv, name, NULL); + if (buf != NULL) + { + font = pango_font_description_from_string((const char *)buf); + vim_free(buf); + } + else + font = NULL; + } + else + font = pango_font_description_from_string((const char *)name); + + if (font != NULL) + { + PangoFont *real_font; + + /* pango_context_load_font() bails out if no font size is set */ + if (pango_font_description_get_size(font) <= 0) + pango_font_description_set_size(font, 10 * PANGO_SCALE); + + real_font = pango_context_load_font(gui.text_context, font); + + if (real_font == NULL) + { + pango_font_description_free(font); + font = NULL; + } + else + g_object_unref(real_font); + } +#else + font = gdk_font_load((const gchar *)name); +#endif + + if (font == NULL) + { + if (report_error) + EMSG2(_(e_font), name); + return NULL; + } + +#ifdef HAVE_GTK2 + /* + * The fixed-width check has been disabled for GTK+ 2. Rationale: + * + * - The check tends to report false positives, particularly + * in non-Latin locales or with old X fonts. + * - Thanks to our fixed-width hack in gui_gtk2_draw_string(), + * GTK+ 2 Vim is actually capable of displaying variable width + * fonts. Those will just be spaced out like in AA xterm. + * - Failing here for the default font causes GUI startup to fail + * even with wiped out configuration files. + * - The font dialog displays all fonts unfiltered, and it's rather + * annoying if 95% of the listed fonts produce an error message. + */ +# if 0 + { + /* Check that this is a mono-spaced font. Naturally, this is a bit + * hackish -- fixed-width isn't really suitable for i18n text :/ */ + PangoLayout *layout; + unsigned int i; + int last_width = -1; + const char test_chars[] = { 'W', 'i', ',', 'x' }; /* arbitrary */ + + layout = pango_layout_new(gui.text_context); + pango_layout_set_font_description(layout, font); + + for (i = 0; i < G_N_ELEMENTS(test_chars); ++i) + { + int width; + + pango_layout_set_text(layout, &test_chars[i], 1); + pango_layout_get_size(layout, &width, NULL); + + if (last_width >= 0 && width != last_width) + { + pango_font_description_free(font); + font = NULL; + break; + } + + last_width = width; + } + + g_object_unref(layout); + } +# endif +#else /* !HAVE_GTK2 */ + { + XFontStruct *xfont; + + /* reference this font as being in use */ + gdk_font_ref(font); + + /* Check that this is a mono-spaced font. + */ + xfont = (XFontStruct *) GDK_FONT_XFONT(font); + + if (xfont->max_bounds.width != xfont->min_bounds.width) + { + gdk_font_unref(font); + font = NULL; + } + } +#endif /* !HAVE_GTK2 */ + +#if !defined(HAVE_GTK2) || 0 /* disabled for GTK+ 2, see above */ + if (font == NULL && report_error) + EMSG2(_(e_fontwidth), name); +#endif + + return font; +} + +#if !defined(HAVE_GTK2) || defined(PROTO) +/* + * Set the current text font. + * Since we create all GC on demand, we use just gui.current_font to + * indicate the desired current font. + */ + void +gui_mch_set_font(GuiFont font) +{ + gui.current_font = font; +} +#endif + +#if defined(FEAT_XFONTSET) || defined(PROTO) +/* + * Set the current text fontset. + */ + void +gui_mch_set_fontset(GuiFontset fontset) +{ + gui.current_font = fontset; +} +#endif + +/* + * If a font is not going to be used, free its structure. + */ + void +gui_mch_free_font(GuiFont font) +{ + if (font != NOFONT) +#ifdef HAVE_GTK2 + pango_font_description_free(font); +#else + gdk_font_unref(font); +#endif +} + +#if defined(FEAT_XFONTSET) || defined(PROTO) +/* + * If a fontset is not going to be used, free its structure. + */ + void +gui_mch_free_fontset(GuiFontset fontset) +{ + if (fontset != NOFONTSET) + gdk_font_unref(fontset); +} +#endif + + +/* + * Return the Pixel value (color) for the given color name. This routine was + * pretty much taken from example code in the Silicon Graphics OSF/Motif + * Programmer's Guide. + * Return INVALCOLOR for error. + */ + guicolor_T +gui_mch_get_color(char_u *name) +{ + /* A number of colors that some X11 systems don't have */ + static const char *const vimnames[][2] = + { + {"LightRed", "#FFBBBB"}, + {"LightGreen", "#88FF88"}, + {"LightMagenta", "#FFBBFF"}, + {"DarkCyan", "#008888"}, + {"DarkBlue", "#0000BB"}, + {"DarkRed", "#BB0000"}, + {"DarkMagenta", "#BB00BB"}, + {"DarkGrey", "#BBBBBB"}, + {"DarkYellow", "#BBBB00"}, + {NULL, NULL} + }; + + if (!gui.in_use) /* can't do this when GUI not running */ + return INVALCOLOR; + + while (name != NULL) + { + GdkColor color; + int parsed; + int i; + + parsed = gdk_color_parse((const char *)name, &color); + +#ifndef HAVE_GTK2 /* ohh, lovely GTK+ 2, eases our pain :) */ + /* + * Since we have already called gtk_set_locale here the bugger + * XParseColor will accept only explicit color names in the language + * of the current locale. However this will interferre with: + * 1. Vim's global startup files + * 2. Explicit color names in .vimrc + * + * Therefore we first try to parse the color in the current locale and + * if it fails, we fall back to the portable "C" one. + */ + if (!parsed) + { + char *current; + + current = setlocale(LC_ALL, NULL); + if (current != NULL) + { + char *saved; + + saved = g_strdup(current); + setlocale(LC_ALL, "C"); + + parsed = gdk_color_parse((const gchar *)name, &color); + + setlocale(LC_ALL, saved); + gtk_set_locale(); + + g_free(saved); + } + } +#endif /* !HAVE_GTK2 */ + + if (parsed) + { +#ifdef HAVE_GTK2 + gdk_colormap_alloc_color(gtk_widget_get_colormap(gui.drawarea), + &color, FALSE, TRUE); +#else + gdk_color_alloc(gtk_widget_get_colormap(gui.drawarea), &color); +#endif + return (guicolor_T)color.pixel; + } + /* add a few builtin names and try again */ + for (i = 0; ; ++i) + { + if (vimnames[i][0] == NULL) + { + name = NULL; + break; + } + if (STRICMP(name, vimnames[i][0]) == 0) + { + name = (char_u *)vimnames[i][1]; + break; + } + } + } + + return INVALCOLOR; +} + +/* + * Set the current text foreground color. + */ + void +gui_mch_set_fg_color(guicolor_T color) +{ + gui.fgcolor->pixel = (unsigned long)color; +} + +/* + * Set the current text background color. + */ + void +gui_mch_set_bg_color(guicolor_T color) +{ + gui.bgcolor->pixel = (unsigned long)color; +} + +#ifdef HAVE_GTK2 +/* + * Function-like convenience macro for the sake of efficiency. + */ +#define INSERT_PANGO_ATTR(Attribute, AttrList, Start, End) \ + G_STMT_START{ \ + PangoAttribute *tmp_attr_; \ + tmp_attr_ = (Attribute); \ + tmp_attr_->start_index = (Start); \ + tmp_attr_->end_index = (End); \ + pango_attr_list_insert((AttrList), tmp_attr_); \ + }G_STMT_END + + static void +apply_wide_font_attr(char_u *s, int len, PangoAttrList *attr_list) +{ + char_u *start = NULL; + char_u *p; + int uc; + + for (p = s; p < s + len; p += utf_byte2len(*p)) + { + uc = utf_ptr2char(p); + + if (start == NULL) + { + if (uc >= 0x80 && utf_char2cells(uc) == 2) + start = p; + } + else if (uc < 0x80 /* optimization shortcut */ + || (utf_char2cells(uc) != 2 && !utf_iscomposing(uc))) + { + INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font), + attr_list, start - s, p - s); + start = NULL; + } + } + + if (start != NULL) + INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font), + attr_list, start - s, len); +} + + static int +count_cluster_cells(char_u *s, PangoItem *item, + PangoGlyphString* glyphs, int i, + int *cluster_width, + int *last_glyph_rbearing) +{ + char_u *p; + int next; /* glyph start index of next cluster */ + int start, end; /* string segment of current cluster */ + int width; /* real cluster width in Pango units */ + int uc; + int cellcount = 0; + + width = glyphs->glyphs[i].geometry.width; + + for (next = i + 1; next < glyphs->num_glyphs; ++next) + { + if (glyphs->glyphs[next].attr.is_cluster_start) + break; + else if (glyphs->glyphs[next].geometry.width > width) + width = glyphs->glyphs[next].geometry.width; + } + + start = item->offset + glyphs->log_clusters[i]; + end = item->offset + ((next < glyphs->num_glyphs) ? + glyphs->log_clusters[next] : item->length); + + for (p = s + start; p < s + end; p += utf_byte2len(*p)) + { + uc = utf_ptr2char(p); + if (uc < 0x80) + ++cellcount; + else if (!utf_iscomposing(uc)) + cellcount += utf_char2cells(uc); + } + + if (last_glyph_rbearing != NULL + && cellcount > 0 && next == glyphs->num_glyphs) + { + PangoRectangle ink_rect; + /* + * If a certain combining mark had to be taken from a non-monospace + * font, we have to compensate manually by adapting x_offset according + * to the ink extents of the previous glyph. + */ + pango_font_get_glyph_extents(item->analysis.font, + glyphs->glyphs[i].glyph, + &ink_rect, NULL); + + if (PANGO_RBEARING(ink_rect) > 0) + *last_glyph_rbearing = PANGO_RBEARING(ink_rect); + } + + if (cellcount > 0) + *cluster_width = width; + + return cellcount; +} + +/* + * If there are only combining characters in the cluster, we cannot just + * change the width of the previous glyph since there is none. Therefore + * some guesswork is needed. + * + * If ink_rect.x is negative Pango apparently has taken care of the composing + * by itself. Actually setting x_offset = 0 should be sufficient then, but due + * to problems with composing from different fonts we still need to fine-tune + * x_offset to avoid uglyness. + * + * If ink_rect.x is not negative, force overstriking by pointing x_offset to + * the position of the previous glyph. Apparently this happens only with old + * X fonts which don't provide the special combining information needed by + * Pango. + */ + static void +setup_zero_width_cluster(PangoItem *item, PangoGlyphInfo *glyph, + int last_cellcount, int last_cluster_width, + int last_glyph_rbearing) +{ + PangoRectangle ink_rect; + PangoRectangle logical_rect; + int width; + + width = last_cellcount * gui.char_width * PANGO_SCALE; + glyph->geometry.x_offset = -width + MAX(0, width - last_cluster_width) / 2; + glyph->geometry.width = 0; + + pango_font_get_glyph_extents(item->analysis.font, + glyph->glyph, + &ink_rect, &logical_rect); + if (ink_rect.x < 0) + { + glyph->geometry.x_offset += last_glyph_rbearing; + glyph->geometry.y_offset = logical_rect.height + - (gui.char_height - p_linespace) * PANGO_SCALE; + } +} + + static void +draw_glyph_string(int row, int col, int num_cells, int flags, + PangoFont *font, PangoGlyphString *glyphs) +{ + if (!(flags & DRAW_TRANSP)) + { + gdk_gc_set_foreground(gui.text_gc, gui.bgcolor); + + gdk_draw_rectangle(gui.drawarea->window, + gui.text_gc, + TRUE, + FILL_X(col), + FILL_Y(row), + num_cells * gui.char_width, + gui.char_height); + } + + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); + + gdk_draw_glyphs(gui.drawarea->window, + gui.text_gc, + font, + TEXT_X(col), + TEXT_Y(row), + glyphs); + + /* redraw the contents with an offset of 1 to emulate bold */ + if ((flags & DRAW_BOLD) && !gui.font_can_bold) + gdk_draw_glyphs(gui.drawarea->window, + gui.text_gc, + font, + TEXT_X(col) + 1, + TEXT_Y(row), + glyphs); +} + +#endif /* HAVE_GTK2 */ + +#if defined(HAVE_GTK2) || defined(PROTO) + int +gui_gtk2_draw_string(int row, int col, char_u *s, int len, int flags) +{ + GdkRectangle area; /* area for clip mask */ + PangoGlyphString *glyphs; /* glyphs of current item */ + int column_offset = 0; /* column offset in cells */ + int i; + char_u *conv_buf = NULL; /* result of UTF-8 conversion */ + char_u *new_conv_buf; + int convlen; + char_u *sp, *bp; + int plen; + + if (gui.text_context == NULL || gui.drawarea->window == NULL) + return len; + + if (output_conv.vc_type != CONV_NONE) + { + /* + * Convert characters from 'encoding' to 'termencoding', which is set + * to UTF-8 by gui_mch_init(). did_set_string_option() in option.c + * prohibits changing this to something else than UTF-8 if the GUI is + * in use. + */ + convlen = len; + conv_buf = string_convert(&output_conv, s, &convlen); + g_return_val_if_fail(conv_buf != NULL, len); + + /* Correct for differences in char width: some chars are + * double-wide in 'encoding' but single-wide in utf-8. Add a space to + * compensate for that. */ + for (sp = s, bp = conv_buf; sp < s + len && bp < conv_buf + convlen; ) + { + plen = utf_ptr2len_check(bp); + if ((*mb_ptr2cells)(sp) == 2 && utf_ptr2cells(bp) == 1) + { + new_conv_buf = alloc(convlen + 2); + if (new_conv_buf == NULL) + return len; + plen += bp - conv_buf; + mch_memmove(new_conv_buf, conv_buf, plen); + new_conv_buf[plen] = ' '; + mch_memmove(new_conv_buf + plen + 1, conv_buf + plen, + convlen - plen + 1); + vim_free(conv_buf); + conv_buf = new_conv_buf; + ++convlen; + bp = conv_buf + plen; + plen = 1; + } + sp += (*mb_ptr2len_check)(sp); + bp += plen; + } + s = conv_buf; + len = convlen; + } + + /* + * Restrict all drawing to the current screen line in order to prevent + * fuzzy font lookups from messing up the screen. + */ + area.x = gui.border_offset; + area.y = FILL_Y(row); + area.width = gui.num_cols * gui.char_width; + area.height = gui.char_height; + + gdk_gc_set_clip_origin(gui.text_gc, 0, 0); + gdk_gc_set_clip_rectangle(gui.text_gc, &area); + + glyphs = pango_glyph_string_new(); + + /* + * Optimization hack: If possible, skip the itemize and shaping process + * for pure ASCII strings. This optimization is particularly effective + * because Vim draws space characters to clear parts of the screen. + */ + if (!(flags & DRAW_ITALIC) + && !((flags & DRAW_BOLD) && gui.font_can_bold) + && gui.ascii_glyphs != NULL) + { + char_u *p; + + for (p = s; p < s + len; ++p) + if (*p & 0x80) + goto not_ascii; + + pango_glyph_string_set_size(glyphs, len); + + for (i = 0; i < len; ++i) + { + glyphs->glyphs[i] = gui.ascii_glyphs->glyphs[s[i]]; + glyphs->log_clusters[i] = i; + } + + draw_glyph_string(row, col, len, flags, gui.ascii_font, glyphs); + + column_offset = len; + } + else +not_ascii: + { + PangoAttrList *attr_list; + GList *item_list; + int cluster_width; + int last_glyph_rbearing; + int cells = 0; /* cells occupied by current cluster */ + + /* original width of the current cluster */ + cluster_width = PANGO_SCALE * gui.char_width; + + /* right bearing of the last non-composing glyph */ + last_glyph_rbearing = PANGO_SCALE * gui.char_width; + + attr_list = pango_attr_list_new(); + + /* If 'guifontwide' is set then use that for double-width characters. + * Otherwise just go with 'guifont' and let Pango do its thing. */ + if (gui.wide_font != NULL) + apply_wide_font_attr(s, len, attr_list); + + if ((flags & DRAW_BOLD) && gui.font_can_bold) + INSERT_PANGO_ATTR(pango_attr_weight_new(PANGO_WEIGHT_BOLD), + attr_list, 0, len); + if (flags & DRAW_ITALIC) + INSERT_PANGO_ATTR(pango_attr_style_new(PANGO_STYLE_ITALIC), + attr_list, 0, len); + /* + * Break the text into segments with consistent directional level + * and shaping engine. Pure Latin text needs only a single segment, + * so there's no need to worry about the loop's efficiency. Better + * try to optimize elsewhere, e.g. reducing exposes and stuff :) + */ + item_list = pango_itemize(gui.text_context, + (const char *)s, 0, len, attr_list, NULL); + + while (item_list != NULL) + { + PangoItem *item; + int item_cells = 0; /* item length in cells */ + + item = (PangoItem *)item_list->data; + item_list = g_list_delete_link(item_list, item_list); + /* + * Increment the bidirectional embedding level by 1 if it is not + * even. An odd number means the output will be RTL, but we don't + * want that since Vim handles right-to-left text on its own. It + * would probably be sufficient to just set level = 0, but you can + * never know :) + * + * Unfortunately we can't take advantage of Pango's ability to + * render both LTR and RTL at the same time. In order to support + * that, Vim's main screen engine would have to make use of Pango + * functionality. + */ + item->analysis.level = (item->analysis.level + 1) & (~1U); + + /* HACK: Overrule the shape engine, we don't want shaping to be + * done, because drawing the cursor would change the display. */ + item->analysis.shape_engine = default_shape_engine; + + pango_shape((const char *)s + item->offset, item->length, + &item->analysis, glyphs); + /* + * Fixed-width hack: iterate over the array and assign a fixed + * width to each glyph, thus overriding the choice made by the + * shaping engine. We use utf_char2cells() to determine the + * number of cells needed. + * + * Also perform all kind of dark magic to get composing + * characters right (and pretty too of course). + */ + for (i = 0; i < glyphs->num_glyphs; ++i) + { + PangoGlyphInfo *glyph; + + glyph = &glyphs->glyphs[i]; + + if (glyph->attr.is_cluster_start) + { + int cellcount; + + cellcount = count_cluster_cells( + s, item, glyphs, i, &cluster_width, + (item_list != NULL) ? &last_glyph_rbearing : NULL); + + if (cellcount > 0) + { + int width; + + width = cellcount * gui.char_width * PANGO_SCALE; + glyph->geometry.x_offset += + MAX(0, width - cluster_width) / 2; + glyph->geometry.width = width; + } + else + { + /* If there are only combining characters in the + * cluster, we cannot just change the width of the + * previous glyph since there is none. Therefore + * some guesswork is needed. */ + setup_zero_width_cluster(item, glyph, cells, + cluster_width, + last_glyph_rbearing); + } + + item_cells += cellcount; + cells = cellcount; + } + else if (i > 0) + { + int width; + + /* There is a previous glyph, so we deal with combining + * characters the canonical way. That is, setting the + * width of the previous glyph to 0. */ + glyphs->glyphs[i - 1].geometry.width = 0; + + width = cells * gui.char_width * PANGO_SCALE; + glyph->geometry.x_offset += + MAX(0, width - cluster_width) / 2; + glyph->geometry.width = width; + } + else /* i == 0 "cannot happen" */ + { + glyph->geometry.width = 0; + } + } + + /*** Aaaaand action! ***/ + draw_glyph_string(row, col + column_offset, item_cells, + flags, item->analysis.font, glyphs); + + pango_item_free(item); + + column_offset += item_cells; + } + + pango_attr_list_unref(attr_list); + } + + if (flags & DRAW_UNDERL) + gdk_draw_line(gui.drawarea->window, + gui.text_gc, + FILL_X(col), + FILL_Y(row + 1) - 1, + FILL_X(col + column_offset) - 1, + FILL_Y(row + 1) - 1); + + pango_glyph_string_free(glyphs); + vim_free(conv_buf); + + gdk_gc_set_clip_rectangle(gui.text_gc, NULL); + + return column_offset; +} +#endif /* HAVE_GTK2 */ + +#if !defined(HAVE_GTK2) || defined(PROTO) + void +gui_mch_draw_string(int row, int col, char_u *s, int len, int flags) +{ + static XChar2b *buf = NULL; + static int buflen = 0; + int is_wide; + XChar2b *text; + int textlen; + XFontStruct *xfont; + char_u *p; +# ifdef FEAT_MBYTE + unsigned c; +# endif + int width; + + if (gui.current_font == NULL || gui.drawarea->window == NULL) + return; + + /* + * Yeah yeah apparently the font support in GTK+ 1.2 only cares for either: + * asians or 8-bit fonts. It is broken there, but no wonder the whole font + * stuff is broken in X11 in first place. And the internationalization API + * isn't something you would really like to use. + */ + + xfont = (XFontStruct *)((GdkFontPrivate*)gui.current_font)->xfont; + is_wide = ((xfont->min_byte1 != 0 || xfont->max_byte1 != 0) +# ifdef FEAT_XFONTSET + && gui.fontset == NOFONTSET +# endif + ); + + if (is_wide) + { + /* Convert a byte sequence to 16 bit characters for the Gdk functions. + * Need a buffer for the 16 bit characters. Keep it between calls, + * because allocating it each time is slow. */ + if (buflen < len) + { + XtFree((char *)buf); + buf = (XChar2b *)XtMalloc(len * sizeof(XChar2b)); + buflen = len; + } + + p = s; + textlen = 0; + width = 0; + while (p < s + len) + { +# ifdef FEAT_MBYTE + if (enc_utf8) + { + c = utf_ptr2char(p); + if (c >= 0x10000) /* show chars > 0xffff as ? */ + c = 0xbf; + buf[textlen].byte1 = c >> 8; + buf[textlen].byte2 = c; + p += utf_ptr2len_check(p); + width += utf_char2cells(c); + } + else +# endif + { + buf[textlen].byte1 = '\0'; /* high eight bits */ + buf[textlen].byte2 = *p; /* low eight bits */ + ++p; + ++width; + } + ++textlen; + } + text = buf; + textlen = textlen * 2; + } + else + { + text = (XChar2b *)s; + textlen = len; +# ifdef FEAT_MBYTE + if (has_mbyte) + { + width = 0; + for (p = s; p < s + len; p += (*mb_ptr2len_check)(p)) + width += (*mb_ptr2cells)(p); + } + else +# endif + width = len; + } + + if (!(flags & DRAW_TRANSP)) + { + gdk_gc_set_foreground(gui.text_gc, gui.bgcolor); + gdk_draw_rectangle(gui.drawarea->window, + gui.text_gc, + TRUE, + FILL_X(col), FILL_Y(row), + width * gui.char_width, gui.char_height); + } + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); + gdk_draw_text(gui.drawarea->window, + gui.current_font, + gui.text_gc, + TEXT_X(col), TEXT_Y(row), + (const gchar *)text, textlen); + + /* redraw the contents with an offset of 1 to emulate bold */ + if (flags & DRAW_BOLD) + gdk_draw_text(gui.drawarea->window, + gui.current_font, + gui.text_gc, + TEXT_X(col) + 1, TEXT_Y(row), + (const gchar *)text, textlen); + + if (flags & DRAW_UNDERL) + { + gdk_draw_line(gui.drawarea->window, + gui.text_gc, FILL_X(col), + FILL_Y(row + 1) - 1, FILL_X(col + width) - 1, FILL_Y(row + 1) - 1); + } +} +#endif /* !HAVE_GTK2 */ + +/* + * Return OK if the key with the termcap name "name" is supported. + */ + int +gui_mch_haskey(char_u *name) +{ + int i; + + for (i = 0; special_keys[i].key_sym != 0; i++) + if (name[0] == special_keys[i].code0 + && name[1] == special_keys[i].code1) + return OK; + return FAIL; +} + +#if defined(FEAT_TITLE) \ + || (defined(FEAT_XIM) && !defined(HAVE_GTK2)) \ + || defined(PROTO) +/* + * Return the text window-id and display. Only required for X-based GUI's + */ + int +gui_get_x11_windis(Window *win, Display **dis) +{ + if (gui.mainwin != NULL && gui.mainwin->window != NULL) + { + *dis = GDK_WINDOW_XDISPLAY(gui.mainwin->window); + *win = GDK_WINDOW_XWINDOW(gui.mainwin->window); + return OK; + } + + *dis = NULL; + *win = 0; + return FAIL; +} +#endif + +#if defined(FEAT_CLIENTSERVER) \ + || (defined(FEAT_X11) && defined(FEAT_CLIPBOARD)) || defined(PROTO) + + Display * +gui_mch_get_display(void) +{ + if (gui.mainwin != NULL && gui.mainwin->window != NULL) + return GDK_WINDOW_XDISPLAY(gui.mainwin->window); + else + return NULL; +} +#endif + + void +gui_mch_beep(void) +{ +#ifdef HAVE_GTK_MULTIHEAD + GdkDisplay *display; + + if (gui.mainwin != NULL && GTK_WIDGET_REALIZED(gui.mainwin)) + display = gtk_widget_get_display(gui.mainwin); + else + display = gdk_display_get_default(); + + if (display != NULL) + gdk_display_beep(display); +#else + gdk_beep(); +#endif +} + + void +gui_mch_flash(int msec) +{ + GdkGCValues values; + GdkGC *invert_gc; + + if (gui.drawarea->window == NULL) + return; + + values.foreground.pixel = gui.norm_pixel ^ gui.back_pixel; + values.background.pixel = gui.norm_pixel ^ gui.back_pixel; + values.function = GDK_XOR; + invert_gc = gdk_gc_new_with_values(gui.drawarea->window, + &values, + GDK_GC_FOREGROUND | + GDK_GC_BACKGROUND | + GDK_GC_FUNCTION); + gdk_gc_set_exposures(invert_gc, + gui.visibility != GDK_VISIBILITY_UNOBSCURED); + /* + * Do a visual beep by changing back and forth in some undetermined way, + * the foreground and background colors. This is due to the fact that + * there can't be really any prediction about the effects of XOR on + * arbitrary X11 servers. However this seems to be enough for what we + * intend it to do. + */ + gdk_draw_rectangle(gui.drawarea->window, invert_gc, + TRUE, + 0, 0, + FILL_X((int)Columns) + gui.border_offset, + FILL_Y((int)Rows) + gui.border_offset); + + gui_mch_flush(); + ui_delay((long)msec, TRUE); /* wait so many msec */ + + gdk_draw_rectangle(gui.drawarea->window, invert_gc, + TRUE, + 0, 0, + FILL_X((int)Columns) + gui.border_offset, + FILL_Y((int)Rows) + gui.border_offset); + + gdk_gc_destroy(invert_gc); +} + +/* + * Invert a rectangle from row r, column c, for nr rows and nc columns. + */ + void +gui_mch_invert_rectangle(int r, int c, int nr, int nc) +{ + GdkGCValues values; + GdkGC *invert_gc; + GdkColor foreground; + GdkColor background; + + if (gui.drawarea->window == NULL) + return; + + foreground.pixel = gui.norm_pixel ^ gui.back_pixel; + background.pixel = gui.norm_pixel ^ gui.back_pixel; + + values.foreground = foreground; + values.background = background; + values.function = GDK_XOR; + invert_gc = gdk_gc_new_with_values(gui.drawarea->window, + &values, + GDK_GC_FOREGROUND | + GDK_GC_BACKGROUND | + GDK_GC_FUNCTION); + gdk_gc_set_exposures(invert_gc, gui.visibility != GDK_VISIBILITY_UNOBSCURED); + gdk_draw_rectangle(gui.drawarea->window, invert_gc, + TRUE, + FILL_X(c), FILL_Y(r), + (nc) * gui.char_width, (nr) * gui.char_height); + gdk_gc_destroy(invert_gc); +} + +/* + * Iconify the GUI window. + */ + void +gui_mch_iconify(void) +{ +#ifdef HAVE_GTK2 + gtk_window_iconify(GTK_WINDOW(gui.mainwin)); +#else + XIconifyWindow(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + GDK_WINDOW_XWINDOW(gui.mainwin->window), + DefaultScreen(GDK_WINDOW_XDISPLAY(gui.mainwin->window))); +#endif +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Bring the Vim window to the foreground. + */ + void +gui_mch_set_foreground(void) +{ +# ifdef HAVE_GTK2 + gtk_window_present(GTK_WINDOW(gui.mainwin)); +# else + gdk_window_raise(gui.mainwin->window); +# endif +} +#endif + +/* + * Draw a cursor without focus. + */ + void +gui_mch_draw_hollow_cursor(guicolor_T color) +{ + int i = 1; + + if (gui.drawarea->window == NULL) + return; + + gui_mch_set_fg_color(color); + + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); +#ifdef FEAT_MBYTE + if (mb_lefthalve(gui.row, gui.col)) + i = 2; +#endif + gdk_draw_rectangle(gui.drawarea->window, gui.text_gc, + FALSE, + FILL_X(gui.col), FILL_Y(gui.row), + i * gui.char_width - 1, gui.char_height - 1); +} + +/* + * Draw part of a cursor, "w" pixels wide, and "h" pixels high, using + * color "color". + */ + void +gui_mch_draw_part_cursor(int w, int h, guicolor_T color) +{ + if (gui.drawarea->window == NULL) + return; + + gui_mch_set_fg_color(color); + + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); + gdk_draw_rectangle(gui.drawarea->window, gui.text_gc, + TRUE, +#ifdef FEAT_RIGHTLEFT + /* vertical line should be on the right of current point */ + CURSOR_BAR_RIGHT ? FILL_X(gui.col + 1) - w : +#endif + FILL_X(gui.col), + FILL_Y(gui.row) + gui.char_height - h, + w, h); +} + + +/* + * Catch up with any queued X11 events. This may put keyboard input into the + * input buffer, call resize call-backs, trigger timers etc. If there is + * nothing in the X11 event queue (& no timers pending), then we return + * immediately. + */ + void +gui_mch_update(void) +{ + while (gtk_events_pending() && !vim_is_input_buf_full()) + gtk_main_iteration_do(FALSE); +} + + static gint +input_timer_cb(gpointer data) +{ + int *timed_out = (int *) data; + + /* Just inform the caller about the occurence of it */ + *timed_out = TRUE; + + if (gtk_main_level() > 0) + gtk_main_quit(); + + return FALSE; /* don't happen again */ +} + +#ifdef FEAT_SNIFF +/* + * Callback function, used when data is available on the SNiFF connection. + */ +/* ARGSUSED */ + static void +sniff_request_cb( + gpointer data, + gint source_fd, + GdkInputCondition condition) +{ + static char_u bytes[3] = {CSI, (int)KS_EXTRA, (int)KE_SNIFF}; + + add_to_input_buf(bytes, 3); + + if (gtk_main_level() > 0) + gtk_main_quit(); +} +#endif + +/* + * GUI input routine called by gui_wait_for_chars(). Waits for a character + * from the keyboard. + * wtime == -1 Wait forever. + * wtime == 0 This should never happen. + * wtime > 0 Wait wtime milliseconds for a character. + * Returns OK if a character was found to be available within the given time, + * or FAIL otherwise. + */ + int +gui_mch_wait_for_chars(long wtime) +{ + int focus; + guint timer; + static int timed_out; +#ifdef FEAT_SNIFF + static int sniff_on = 0; + static gint sniff_input_id = 0; +#endif + +#ifdef FEAT_SNIFF + if (sniff_on && !want_sniff_request) + { + if (sniff_input_id) + gdk_input_remove(sniff_input_id); + sniff_on = 0; + } + else if (!sniff_on && want_sniff_request) + { + /* Add fd_from_sniff to watch for available data in main loop. */ + sniff_input_id = gdk_input_add(fd_from_sniff, + GDK_INPUT_READ, sniff_request_cb, NULL); + sniff_on = 1; + } +#endif + + timed_out = FALSE; + + /* this timeout makes sure that we will return if no characters arrived in + * time */ + + if (wtime > 0) + timer = gtk_timeout_add((guint32)wtime, input_timer_cb, &timed_out); + else + timer = 0; + + focus = gui.in_focus; + + do + { + /* Stop or start blinking when focus changes */ + if (gui.in_focus != focus) + { + if (gui.in_focus) + gui_mch_start_blink(); + else + gui_mch_stop_blink(); + focus = gui.in_focus; + } + + /* + * Loop in GTK+ processing until a timeout or input occurs. + */ + gtk_main(); + + /* Got char, return immediately */ + if (input_available()) + { + if (timer != 0 && !timed_out) + gtk_timeout_remove(timer); + return OK; + } + } while (wtime < 0 || !timed_out); + + /* + * Flush all eventually pending (drawing) events. + */ + gui_mch_update(); + + return FAIL; +} + + +/**************************************************************************** + * Output drawing routines. + ****************************************************************************/ + + +/* Flush any output to the screen */ + void +gui_mch_flush(void) +{ +#ifdef HAVE_GTK_MULTIHEAD + if (gui.mainwin != NULL && GTK_WIDGET_REALIZED(gui.mainwin)) + gdk_display_sync(gtk_widget_get_display(gui.mainwin)); +#else + gdk_flush(); /* historical misnomer: calls XSync(), not XFlush() */ +#endif +#ifdef HAVE_GTK2 + /* This happens to actually do what gui_mch_flush() is supposed to do, + * according to the comment above. */ + if (gui.drawarea != NULL && gui.drawarea->window != NULL) + gdk_window_process_updates(gui.drawarea->window, FALSE); +#endif +} + +/* + * Clear a rectangular region of the screen from text pos (row1, col1) to + * (row2, col2) inclusive. + */ + void +gui_mch_clear_block(int row1, int col1, int row2, int col2) +{ + GdkColor color; + + if (gui.drawarea->window == NULL) + return; + + color.pixel = gui.back_pixel; + + gdk_gc_set_foreground(gui.text_gc, &color); + + /* Clear one extra pixel at the far right, for when bold characters have + * spilled over to the window border. */ + gdk_draw_rectangle(gui.drawarea->window, gui.text_gc, TRUE, + FILL_X(col1), FILL_Y(row1), + (col2 - col1 + 1) * gui.char_width + + (col2 == Columns - 1), + (row2 - row1 + 1) * gui.char_height); +} + + void +gui_mch_clear_all(void) +{ + if (gui.drawarea->window != NULL) + gdk_window_clear(gui.drawarea->window); +} + +/* + * Redraw any text revealed by scrolling up/down. + */ + static void +check_copy_area(void) +{ + GdkEvent *event; + int expose_count; + + if (gui.visibility != GDK_VISIBILITY_PARTIAL) + return; + + /* Avoid redrawing the cursor while scrolling or it'll end up where + * we don't want it to be. I'm not sure if it's correct to call + * gui_dont_update_cursor() at this point but it works as a quick + * fix for now. */ + gui_dont_update_cursor(); + + do + { + /* Wait to check whether the scroll worked or not. */ + event = gdk_event_get_graphics_expose(gui.drawarea->window); + + if (event == NULL) + break; /* received NoExpose event */ + + gui_redraw(event->expose.area.x, event->expose.area.y, + event->expose.area.width, event->expose.area.height); + + expose_count = event->expose.count; + gdk_event_free(event); + } + while (expose_count > 0); /* more events follow */ + + gui_can_update_cursor(); +} + +/* + * Delete the given number of lines from the given row, scrolling up any + * text further down within the scroll region. + */ + void +gui_mch_delete_lines(int row, int num_lines) +{ + if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED) + return; /* Can't see the window */ + + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); + gdk_gc_set_background(gui.text_gc, gui.bgcolor); + + /* copy one extra pixel, for when bold has spilled over */ + gdk_window_copy_area(gui.drawarea->window, gui.text_gc, + FILL_X(gui.scroll_region_left), FILL_Y(row), + gui.drawarea->window, + FILL_X(gui.scroll_region_left), + FILL_Y(row + num_lines), + gui.char_width * (gui.scroll_region_right + - gui.scroll_region_left + 1) + 1, + gui.char_height * (gui.scroll_region_bot - row - num_lines + 1)); + + gui_clear_block(gui.scroll_region_bot - num_lines + 1, + gui.scroll_region_left, + gui.scroll_region_bot, gui.scroll_region_right); + check_copy_area(); +} + +/* + * Insert the given number of lines before the given row, scrolling down any + * following text within the scroll region. + */ + void +gui_mch_insert_lines(int row, int num_lines) +{ + if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED) + return; /* Can't see the window */ + + gdk_gc_set_foreground(gui.text_gc, gui.fgcolor); + gdk_gc_set_background(gui.text_gc, gui.bgcolor); + + /* copy one extra pixel, for when bold has spilled over */ + gdk_window_copy_area(gui.drawarea->window, gui.text_gc, + FILL_X(gui.scroll_region_left), FILL_Y(row + num_lines), + gui.drawarea->window, + FILL_X(gui.scroll_region_left), FILL_Y(row), + gui.char_width * (gui.scroll_region_right + - gui.scroll_region_left + 1) + 1, + gui.char_height * (gui.scroll_region_bot - row - num_lines + 1)); + + gui_clear_block(row, gui.scroll_region_left, + row + num_lines - 1, gui.scroll_region_right); + check_copy_area(); +} + +/* + * X Selection stuff, for cutting and pasting text to other windows. + */ + void +clip_mch_request_selection(VimClipboard *cbd) +{ + GdkAtom target; + unsigned i; + int nbytes; + char_u *buffer; + + for (i = 0; i < N_SELECTION_TARGETS; ++i) + { + received_selection = RS_NONE; + target = gdk_atom_intern(selection_targets[i].target, FALSE); + + gtk_selection_convert(gui.drawarea, + cbd->gtk_sel_atom, target, + (guint32)GDK_CURRENT_TIME); + + while (received_selection == RS_NONE) + gtk_main(); /* wait for selection_received_cb */ + + if (received_selection != RS_FAIL) + return; + } + + /* Final fallback position - use the X CUT_BUFFER0 store */ + nbytes = 0; + buffer = (char_u *)XFetchBuffer(GDK_WINDOW_XDISPLAY(gui.mainwin->window), + &nbytes, 0); + if (nbytes > 0) + { + /* Got something */ + clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd); + if (p_verbose > 0) + smsg((char_u *)_("Used CUT_BUFFER0 instead of empty selection")); + } + if (buffer != NULL) + XFree(buffer); +} + +/* + * Disown the selection. + */ +/*ARGSUSED*/ + void +clip_mch_lose_selection(VimClipboard *cbd) +{ + /* WEIRD: when using NULL to actually disown the selection, we lose the + * selection the first time we own it. */ + /* + gtk_selection_owner_set(NULL, cbd->gtk_sel_atom, (guint32)GDK_CURRENT_TIME); + gui_mch_update(); + */ +} + +/* + * Own the selection and return OK if it worked. + */ + int +clip_mch_own_selection(VimClipboard *cbd) +{ + int success; + + success = gtk_selection_owner_set(gui.drawarea, cbd->gtk_sel_atom, + (guint32)GDK_CURRENT_TIME); + gui_mch_update(); + return (success) ? OK : FAIL; +} + +/* + * Send the current selection to the clipboard. Do nothing for X because we + * will fill in the selection only when requested by another app. + */ +/*ARGSUSED*/ + void +clip_mch_set_selection(VimClipboard *cbd) +{ +} + + +#if defined(FEAT_MENU) || defined(PROTO) +/* + * Make a menu item appear either active or not active (grey or not grey). + */ + void +gui_mch_menu_grey(vimmenu_T *menu, int grey) +{ + if (menu->id == NULL) + return; + + if (menu_is_separator(menu->name)) + grey = TRUE; + + gui_mch_menu_hidden(menu, FALSE); + /* Be clever about bitfields versus true booleans here! */ + if (!GTK_WIDGET_SENSITIVE(menu->id) == !grey) + { + gtk_widget_set_sensitive(menu->id, !grey); + gui_mch_update(); + } +} + +/* + * Make menu item hidden or not hidden. + */ + void +gui_mch_menu_hidden(vimmenu_T *menu, int hidden) +{ + if (menu->id == 0) + return; + + if (hidden) + { + if (GTK_WIDGET_VISIBLE(menu->id)) + { + gtk_widget_hide(menu->id); + gui_mch_update(); + } + } + else + { + if (!GTK_WIDGET_VISIBLE(menu->id)) + { + gtk_widget_show(menu->id); + gui_mch_update(); + } + } +} + +/* + * This is called after setting all the menus to grey/hidden or not. + */ + void +gui_mch_draw_menubar(void) +{ + /* just make sure that the visual changes get effect immediately */ + gui_mch_update(); +} +#endif /* FEAT_MENU */ + +/* + * Scrollbar stuff. + */ + void +gui_mch_enable_scrollbar(scrollbar_T *sb, int flag) +{ + if (sb->id == NULL) + return; + + if (flag) + gtk_widget_show(sb->id); + else + gtk_widget_hide(sb->id); + + update_window_manager_hints(); +} + + +/* + * Return the RGB value of a pixel as long. + */ + long_u +gui_mch_get_rgb(guicolor_T pixel) +{ + GdkColor color; +#ifndef HAVE_GTK2 + GdkColorContext *cc; + + cc = gdk_color_context_new(gtk_widget_get_visual(gui.drawarea), + gtk_widget_get_colormap(gui.drawarea)); + color.pixel = pixel; + gdk_color_context_query_color(cc, &color); + + gdk_color_context_free(cc); +#else + gdk_colormap_query_color(gtk_widget_get_colormap(gui.drawarea), + (unsigned long)pixel, &color); +#endif + + return (((unsigned)color.red & 0xff00) << 8) + | ((unsigned)color.green & 0xff00) + | (((unsigned)color.blue & 0xff00) >> 8); +} + +/* + * Get current y mouse coordinate in text window. + * Return -1 when unknown. + */ + int +gui_mch_get_mouse_x(void) +{ + int win_x; + + gdk_window_get_pointer(gui.drawarea->window, &win_x, NULL, NULL); + return win_x; +} + + int +gui_mch_get_mouse_y(void) +{ + int win_y; + + gdk_window_get_pointer(gui.drawarea->window, NULL, &win_y, NULL); + return win_y; +} + + void +gui_mch_setmouse(int x, int y) +{ + /* Sorry for the Xlib call, but we can't avoid it, since there is no + * internal GDK mechanism present to accomplish this. (and for good + * reason...) */ + XWarpPointer(GDK_WINDOW_XDISPLAY(gui.drawarea->window), + (Window)0, GDK_WINDOW_XWINDOW(gui.drawarea->window), + 0, 0, 0U, 0U, x, y); +} + + +#ifdef FEAT_MOUSESHAPE +/* The last set mouse pointer shape is remembered, to be used when it goes + * from hidden to not hidden. */ +static int last_shape = 0; +#endif + +/* + * Use the blank mouse pointer or not. + * + * hide: TRUE = use blank ptr, FALSE = use parent ptr + */ + void +gui_mch_mousehide(int hide) +{ + if (gui.pointer_hidden != hide) + { + gui.pointer_hidden = hide; + if (gui.drawarea->window && gui.blank_pointer != NULL) + { + if (hide) + gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer); + else +#ifdef FEAT_MOUSESHAPE + mch_set_mouse_shape(last_shape); +#else + gdk_window_set_cursor(gui.drawarea->window, NULL); +#endif + } + } +} + +#if defined(FEAT_MOUSESHAPE) || defined(PROTO) + +/* Table for shape IDs. Keep in sync with the mshape_names[] table in + * misc2.c! */ +static const int mshape_ids[] = +{ + GDK_LEFT_PTR, /* arrow */ + GDK_CURSOR_IS_PIXMAP, /* blank */ + GDK_XTERM, /* beam */ + GDK_SB_V_DOUBLE_ARROW, /* updown */ + GDK_SIZING, /* udsizing */ + GDK_SB_H_DOUBLE_ARROW, /* leftright */ + GDK_SIZING, /* lrsizing */ + GDK_WATCH, /* busy */ + GDK_X_CURSOR, /* no */ + GDK_CROSSHAIR, /* crosshair */ + GDK_HAND1, /* hand1 */ + GDK_HAND2, /* hand2 */ + GDK_PENCIL, /* pencil */ + GDK_QUESTION_ARROW, /* question */ + GDK_RIGHT_PTR, /* right-arrow */ + GDK_CENTER_PTR, /* up-arrow */ + GDK_LEFT_PTR /* last one */ +}; + + void +mch_set_mouse_shape(int shape) +{ + int id; + GdkCursor *c; + + if (gui.drawarea->window == NULL) + return; + + if (shape == MSHAPE_HIDE || gui.pointer_hidden) + gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer); + else + { + if (shape >= MSHAPE_NUMBERED) + { + id = shape - MSHAPE_NUMBERED; + if (id >= GDK_LAST_CURSOR) + id = GDK_LEFT_PTR; + else + id &= ~1; /* they are always even (why?) */ + } + else + id = mshape_ids[shape]; +# ifdef HAVE_GTK_MULTIHEAD + c = gdk_cursor_new_for_display( + gtk_widget_get_display(gui.drawarea), id); +# else + c = gdk_cursor_new(id); +# endif + gdk_window_set_cursor(gui.drawarea->window, c); + gdk_cursor_destroy(c); /* Unref, actually. Bloody GTK+ 1. */ + } + if (shape != MSHAPE_HIDE) + last_shape = shape; +} +#endif /* FEAT_MOUSESHAPE */ + + +#if defined(FEAT_SIGN_ICONS) || defined(PROTO) +/* + * Signs are currently always 2 chars wide. With GTK+ 2, the image will be + * scaled down if the current font is not big enough, or scaled up if the image + * size is less than 3/4 of the maximum sign size. With GTK+ 1, the pixmap + * will be cut off if the current font is not big enough, or centered if it's + * too small. + */ +# define SIGN_WIDTH (2 * gui.char_width) +# define SIGN_HEIGHT (gui.char_height) +# define SIGN_ASPECT ((double)SIGN_HEIGHT / (double)SIGN_WIDTH) + +# ifdef HAVE_GTK2 + + void +gui_mch_drawsign(int row, int col, int typenr) +{ + GdkPixbuf *sign; + + sign = (GdkPixbuf *)sign_get_image(typenr); + + if (sign != NULL && gui.drawarea != NULL && gui.drawarea->window != NULL) + { + int width; + int height; + int xoffset; + int yoffset; + int need_scale; + + width = gdk_pixbuf_get_width(sign); + height = gdk_pixbuf_get_height(sign); + /* + * Decide whether we need to scale. Allow one pixel of border + * width to be cut off, in order to avoid excessive scaling for + * tiny differences in font size. + */ + need_scale = (width > SIGN_WIDTH + 2 + || height > SIGN_HEIGHT + 2 + || (width < 3 * SIGN_WIDTH / 4 + && height < 3 * SIGN_HEIGHT / 4)); + if (need_scale) + { + double aspect; + + /* Keep the original aspect ratio */ + aspect = (double)height / (double)width; + width = (double)SIGN_WIDTH * SIGN_ASPECT / aspect; + width = MIN(width, SIGN_WIDTH); + height = (double)width * aspect; + + /* This doesn't seem to be worth caching, and doing so + * would complicate the code quite a bit. */ + sign = gdk_pixbuf_scale_simple(sign, width, height, + GDK_INTERP_BILINEAR); + if (sign == NULL) + return; /* out of memory */ + } + + /* The origin is the upper-left corner of the pixmap. Therefore + * these offset may become negative if the pixmap is smaller than + * the 2x1 cells reserved for the sign icon. */ + xoffset = (width - SIGN_WIDTH) / 2; + yoffset = (height - SIGN_HEIGHT) / 2; + + gdk_gc_set_foreground(gui.text_gc, gui.bgcolor); + + gdk_draw_rectangle(gui.drawarea->window, + gui.text_gc, + TRUE, + FILL_X(col), + FILL_Y(row), + SIGN_WIDTH, + SIGN_HEIGHT); + +# if GTK_CHECK_VERSION(2,1,1) + gdk_draw_pixbuf(gui.drawarea->window, + NULL, + sign, + MAX(0, xoffset), + MAX(0, yoffset), + FILL_X(col) - MIN(0, xoffset), + FILL_Y(row) - MIN(0, yoffset), + MIN(width, SIGN_WIDTH), + MIN(height, SIGN_HEIGHT), + GDK_RGB_DITHER_NORMAL, + 0, 0); +# else + gdk_pixbuf_render_to_drawable_alpha(sign, + gui.drawarea->window, + MAX(0, xoffset), + MAX(0, yoffset), + FILL_X(col) - MIN(0, xoffset), + FILL_Y(row) - MIN(0, yoffset), + MIN(width, SIGN_WIDTH), + MIN(height, SIGN_HEIGHT), + GDK_PIXBUF_ALPHA_BILEVEL, + 127, + GDK_RGB_DITHER_NORMAL, + 0, 0); +# endif + if (need_scale) + g_object_unref(sign); + } +} + + void * +gui_mch_register_sign(char_u *signfile) +{ + if (signfile[0] != NUL && signfile[0] != '-' && gui.in_use) + { + GdkPixbuf *sign; + GError *error = NULL; + char_u *message; + + sign = gdk_pixbuf_new_from_file((const char *)signfile, &error); + + if (error == NULL) + return sign; + + message = (char_u *)error->message; + + if (message != NULL && input_conv.vc_type != CONV_NONE) + message = string_convert(&input_conv, message, NULL); + + if (message != NULL) + { + /* The error message is already translated and will be more + * descriptive than anything we could possibly do ourselves. */ + EMSG2("E255: %s", message); + + if (input_conv.vc_type != CONV_NONE) + vim_free(message); + } + g_error_free(error); + } + + return NULL; +} + + void +gui_mch_destroy_sign(void *sign) +{ + if (sign != NULL) + g_object_unref(sign); +} + +# else /* !HAVE_GTK2 */ + +typedef struct +{ + GdkPixmap *pixmap; + GdkBitmap *mask; +} +signicon_T; + + void +gui_mch_drawsign(int row, int col, int typenr) +{ + signicon_T *sign; + + sign = (signicon_T *)sign_get_image(typenr); + + if (sign != NULL && sign->pixmap != NULL + && gui.drawarea != NULL && gui.drawarea->window != NULL) + { + int width; + int height; + int xoffset; + int yoffset; + + gdk_window_get_size(sign->pixmap, &width, &height); + + /* The origin is the upper-left corner of the pixmap. Therefore + * these offset may become negative if the pixmap is smaller than + * the 2x1 cells reserved for the sign icon. */ + xoffset = (width - SIGN_WIDTH) / 2; + yoffset = (height - SIGN_HEIGHT) / 2; + + gdk_gc_set_foreground(gui.text_gc, gui.bgcolor); + + gdk_draw_rectangle(gui.drawarea->window, + gui.text_gc, + TRUE, + FILL_X(col), + FILL_Y(row), + SIGN_WIDTH, + SIGN_HEIGHT); + + /* Set the clip mask for bilevel transparency */ + if (sign->mask != NULL) + { + gdk_gc_set_clip_origin(gui.text_gc, + FILL_X(col) - xoffset, + FILL_Y(row) - yoffset); + gdk_gc_set_clip_mask(gui.text_gc, sign->mask); + } + + gdk_draw_pixmap(gui.drawarea->window, + gui.text_gc, + sign->pixmap, + MAX(0, xoffset), + MAX(0, yoffset), + FILL_X(col) - MIN(0, xoffset), + FILL_Y(row) - MIN(0, yoffset), + MIN(width, SIGN_WIDTH), + MIN(height, SIGN_HEIGHT)); + + gdk_gc_set_clip_mask(gui.text_gc, NULL); + } +} + + void * +gui_mch_register_sign(char_u *signfile) +{ + signicon_T *sign = NULL; + + if (signfile[0] != NUL && signfile[0] != '-' + && gui.drawarea != NULL && gui.drawarea->window != NULL) + { + sign = (signicon_T *)alloc(sizeof(signicon_T)); + + if (sign != NULL) /* NULL == OOM == "cannot really happen" */ + { + sign->mask = NULL; + sign->pixmap = gdk_pixmap_colormap_create_from_xpm( + gui.drawarea->window, NULL, + &sign->mask, NULL, + (const char *)signfile); + + if (sign->pixmap == NULL) + { + vim_free(sign); + sign = NULL; + EMSG(_(e_signdata)); + } + } + } + return sign; +} + + void +gui_mch_destroy_sign(void *sign) +{ + if (sign != NULL) + { + signicon_T *signicon = (signicon_T *)sign; + + if (signicon->pixmap != NULL) + gdk_pixmap_unref(signicon->pixmap); + if (signicon->mask != NULL) + gdk_bitmap_unref(signicon->mask); + + vim_free(signicon); + } +} +# endif /* !HAVE_GTK2 */ + +#endif /* FEAT_SIGN_ICONS */ + |