diff options
Diffstat (limited to 'src/xterm.h')
| -rw-r--r-- | src/xterm.h | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/src/xterm.h b/src/xterm.h new file mode 100644 index 00000000000..dd367cfe7dd --- /dev/null +++ b/src/xterm.h @@ -0,0 +1,352 @@ +/* Definitions and headers for communication with X protocol. + Copyright (C) 1989 Free Software Foundation, Inc. + +This file is part of GNU Emacs. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 1, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Emacs; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifdef HAVE_X11 +#include <X11/Xlib.h> +#include <X11/cursorfont.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> +#include <X11/Xatom.h> +#include <X11/Xresource.h> +#else +#include <X/Xlib.h> +#endif /* HAVE_X11 */ + +/* Define a queue for X-events. One such queue is used for mouse clicks. + Another is used for expose events. */ + +#define EVENT_BUFFER_SIZE 64 + +#define RES_CLASS "emacs" + +/* Max and Min sizes in character columns. */ +#define MINWIDTH 10 +#define MINHEIGHT 10 +#define MAXWIDTH 300 +#define MAXHEIGHT 80 + +#ifdef HAVE_X11 +#define PIX_TYPE unsigned long +#define XDISPLAY x_current_display, +#define XFlushQueue() XFlush(x_current_display) +#define BLACK_PIX_DEFAULT BlackPixel (x_current_display, \ + XDefaultScreen (x_current_display)) +#define WHITE_PIX_DEFAULT WhitePixel (x_current_display, \ + XDefaultScreen (x_current_display)) +#define DISPLAY_SCREEN_ARG x_current_display, \ + XDefaultScreen (x_current_display) +#define DISPLAY_CELLS DisplayCells (x_current_display, XDefaultScreen (x_current_display)) +#define ROOT_WINDOW RootWindow (x_current_display, XDefaultScreen (x_current_display)) +#define FONT_TYPE XFontStruct +#define Color XColor + +#define XExposeRegionEvent XExposeEvent +#define Bitmap Pixmap /* In X11, Bitmaps are are kind of + Pixmap. */ +#define WINDOWINFO_TYPE XWindowAttributes +#define XGetWindowInfo(w, i) XGetWindowAttributes (x_current_display, \ + (w), (i)) +#define XGetFont(f) XLoadQueryFont (x_current_display, (f)) +#define XLoseFont(f) XFreeFont (x_current_display, (f)) +#define XStuffPending() XPending (x_current_display) +#define XClear(w) XClearWindow (x_current_display, (w)) +#define XWarpMousePointer(w,x,y) XWarpPointer (x_current_display, None, w, \ + 0,0,0,0, x, y) +#define XHandleError XSetErrorHandler +#define XHandleIOError XSetIOErrorHandler + +#define XChangeWindowSize(w,x,y) XResizeWindow(x_current_display,w,x,y) + +#define FONT_WIDTH(f) ((f)->max_bounds.width) +#define FONT_HEIGHT(f) ((f)->ascent + (f)->descent) +#define FONT_BASE(f) ((f)->ascent) + +/* GC values used for drawing non-standard (other face) text. */ +extern XGCValues face_gc_values; + +/* The mask of events that text windows always want to receive. This + does not include mouse movement events or button release events. + It is used when the window is created (in x_window) and when we + ask/unask for mouse movement events (in XTmouse_tracking_enable). + */ + +#define STANDARD_EVENT_SET \ + (KeyPressMask \ + | ExposureMask \ + | ButtonPressMask \ + | StructureNotifyMask \ + | FocusChangeMask \ + | LeaveWindowMask \ + | EnterWindowMask \ + | VisibilityChangeMask) + +#else /* X10 */ + +#define ConnectionNumber(dpy) dpyno() +#define PIX_TYPE int +#define XDISPLAY +#define XFlushQueue() XFlush() +#define BLACK_PIX_DEFAULT BlackPixel +#define WHITE_PIX_DEFAULT WhitePixel +#define DISPLAY_SCREEN_ARG +#define DISPLAY_CELLS DisplayCells () +#define ROOT_WINDOW RootWindow +#define XFree free +#define FONT_TYPE FontInfo + +#define WINDOWINFO_TYPE WindowInfo +#define XGetWindowInfo(w, i) XQueryWindow ((w), (i)) +#define XGetFont(f) XOpenFont ((f)) +#define XLoseFont(f) XCloseFont ((f)) +#define XStuffPending() XPending () +#define XWarpMousePointer(w,x,y) XWarpMouse (w,x,y) +#define XHandleError XErrorHandler +#define XHandleIOError XIOErrorHandler + +#define FONT_WIDTH(f) ((f)->width) +#define FONT_HEIGHT(f) ((f)->height) +#define FONT_BASE(f) ((f)->base) + +#define XChangeWindowSize(w,x,y) XChangeWindow(w,x,y) + +#endif /* X10 */ + +struct event_queue + { + int rindex; /* Index at which to fetch next. */ + int windex; /* Index at which to store next. */ + XEvent xrep[EVENT_BUFFER_SIZE]; + }; + +/* Queue for mouse clicks. */ +extern struct event_queue x_mouse_queue; + +/* Mechanism for interlocking between main program level + and input interrupt level. */ + +/* Nonzero during a critical section. At such a time, an input interrupt + does nothing but set `x_pending_input'. */ +extern int x_input_blocked; + +/* Nonzero means an input interrupt has arrived + during the current critical section. */ +extern int x_pending_input; + +#ifndef sigmask +#define sigmask(no) (1L << ((no) - 1)) +#endif + +/* Begin critical section. */ +#define BLOCK_INPUT (x_input_blocked++) + +/* End critical section. */ +#define UNBLOCK_INPUT (x_input_blocked--, (x_input_blocked < 0 ? abort () : 0)) + +#define TOTALLY_UNBLOCK_INPUT (x_input_blocked = 0) +#define UNBLOCK_INPUT_RESIGNAL UNBLOCK_INPUT + +/* This is the X connection that we are using. */ + +extern Display *x_current_display; + +extern struct screen *x_window_to_screen (); + +/* The screen (if any) which has the X window that has keyboard focus. + Zero if none. This is examined by Ffocus_screen in xfns.c */ + +struct screen *x_focus_screen; + +#ifdef HAVE_X11 +/* Variables associated with the X display screen this emacs is using. */ + +/* How many screens this X display has. */ +extern Lisp_Object x_screen_count; + +/* The vendor supporting this X server. */ +extern Lisp_Object Vx_vendor; + +/* The vendor's release number for this X server. */ +extern Lisp_Object x_release; + +/* Height of this X screen in pixels. */ +extern Lisp_Object x_screen_height; + +/* Height of this X screen in millimeters. */ +extern Lisp_Object x_screen_height_mm; + +/* Width of this X screen in pixels. */ +extern Lisp_Object x_screen_width; + +/* Width of this X screen in millimeters. */ +extern Lisp_Object x_screen_width_mm; + +/* Does this X screen do backing store? */ +extern Lisp_Object Vx_backing_store; + +/* Does this X screen do save-unders? */ +extern Lisp_Object x_save_under; + +/* Number of planes for this screen. */ +extern Lisp_Object x_screen_planes; + +/* X Visual type of this screen. */ +extern Lisp_Object Vx_screen_visual; + +#endif /* HAVE_X11 */ + +enum text_cursor_kinds { + filled_box_cursor, hollow_box_cursor, bar_cursor +}; + +#define PIXEL_WIDTH(s) ((s)->display.x->pixel_width) +#define PIXEL_HEIGHT(s) ((s)->display.x->pixel_height) + +/* Each X screen object points to its own struct x_display object + in the display.x field. The x_display structure contains all + the information that is specific to X windows. */ + +struct x_display +{ + /* Position of the X window (x and y offsets in root window). */ + int left_pos; + int top_pos; + + /* Border width of the X window as known by the X window system. */ + int border_width; + + /* Size of the X window in pixels. */ + int pixel_height, pixel_width; + +#ifdef HAVE_X11 + /* The tiled border used when the mouse is out of the screen. */ + Pixmap border_tile; + + /* Here are the Graphics Contexts for the default font. */ + GC normal_gc; /* Normal video */ + GC reverse_gc; /* Reverse video */ + GC cursor_gc; /* cursor drawing */ +#endif /* HAVE_X11 */ + + /* Width of the internal border. This is a line of background color + just inside the window's border. When the screen is selected, + a highlighting is displayed inside the internal border. */ + int internal_border_width; + + /* The X window used for this screen. + May be zero while the screen object is being created + and the X window has not yet been created. */ + Window window_desc; + + /* The X window used for the bitmap icon; + or 0 if we don't have a bitmap icon. */ + Window icon_desc; + + /* The X window that is the parent of this X window. + Usually but not always RootWindow. */ + Window parent_desc; + + /* 1 for bitmap icon, 0 for text icon. */ + int icon_bitmap_flag; + + FONT_TYPE *font; + + /* Pixel values used for various purposes. + border_pixel may be -1 meaning use a gray tile. */ + PIX_TYPE background_pixel; + PIX_TYPE foreground_pixel; + PIX_TYPE cursor_pixel; + PIX_TYPE border_pixel; + PIX_TYPE mouse_pixel; + + /* Windows for scrollbars */ + Window v_scrollbar; + Window v_thumbup; + Window v_thumbdown; + Window v_slider; + + Window h_scrollbar; + Window h_thumbleft; + Window h_thumbright; + Window h_slider; + + /* Scrollbar info */ + + int v_scrollbar_width; + int h_scrollbar_height; + + /* Descriptor for the cursor in use for this window. */ +#ifdef HAVE_X11 + Cursor text_cursor; + Cursor nontext_cursor; + Cursor modeline_cursor; +#else + Cursor cursor; +#endif + + /* The name that was associated with the icon, the last time + it was refreshed. Usually the same as the name of the + buffer in the currently selected window in the screen */ + char *icon_label; + + /* Flag to set when the X window needs to be completely repainted. */ + int needs_exposure; + + /* What kind of text cursor is drawn in this window right now? (If + there is no cursor (phys_cursor_x < 0), then this means nothing. */ + enum text_cursor_kinds text_cursor_kind; +}; + +/* When X windows are used, a glyf may be a 16 bit unsigned datum. + The high order byte is the face number and is used as an index + in the face table. A face is a font plus: + 1) the unhighlighted foreground color, + 2) the unhighlighted background color. + For highlighting, the two colors are exchanged. + Face number 0 is unused. The low order byte of a glyf gives + the character within the font. All fonts are assumed to be + fixed width, and to have the same height and width. */ + +#ifdef HAVE_X11 +/* Table of GC's used for this screen. */ +GC *gc_table; + +/* How many GCs are in the table. */ +int gcs_in_use; + +struct face +{ + GC face_gc; + unsigned int foreground; + unsigned int background; + Pixmap stipple; + XFontStruct *font; +}; + +#else /* X10 */ + +struct face +{ + FONT_TYPE *font; /* Font info for specified font. */ + int fg; /* Unhighlighted foreground. */ + int bg; /* Unhighlighted background. */ +}; +#endif /* X10 */ + +#define MAX_FACES_AND_GLYPHS 256 +extern struct face *x_face_table[]; |