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Diffstat (limited to 'gtk/gtktext.h')
| -rw-r--r-- | gtk/gtktext.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/gtk/gtktext.h b/gtk/gtktext.h new file mode 100644 index 0000000000..012d679a3b --- /dev/null +++ b/gtk/gtktext.h @@ -0,0 +1,204 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#ifndef __GTK_TEXT_H__ +#define __GTK_TEXT_H__ + + +#include <gdk/gdk.h> +#include <gtk/gtkadjustment.h> +#include <gtk/gtkwidget.h> + + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +#define GTK_TEXT(obj) GTK_CHECK_CAST (obj, gtk_text_get_type (), GtkText) +#define GTK_TEXT_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gtk_text_get_type (), GtkTextClass) +#define GTK_IS_TEXT(obj) GTK_CHECK_TYPE (obj, gtk_text_get_type ()) + + +typedef struct _GtkPropertyMark GtkPropertyMark; +typedef struct _GtkText GtkText; +typedef struct _GtkTextClass GtkTextClass; + +typedef void (*GtkTextFunction) (GtkText *text); + +struct _GtkPropertyMark +{ + /* Position in list. */ + GList* property; + + /* Offset into that property. */ + guint offset; + + /* Current index. */ + guint index; +}; + +struct _GtkText +{ + GtkWidget widget; + + GdkWindow *text_area; + + GtkAdjustment *hadj; + GtkAdjustment *vadj; + + GdkGC *gc; + + GdkPixmap* line_wrap_bitmap; + GdkPixmap* line_arrow_bitmap; + + /* GAPPED TEXT SEGMENT */ + + /* The text, a single segment of text a'la emacs, with a gap + * where insertion occurs. */ + guchar* text; + /* The allocated length of the text segment. */ + guint text_len; + /* The gap position, index into address where a char + * should be inserted. */ + guint gap_position; + /* The gap size, s.t. *(text + gap_position + gap_size) is + * the first valid character following the gap. */ + guint gap_size; + /* The last character position, index into address where a + * character should be appeneded. Thus, text_end - gap_size + * is the length of the actual data. */ + guint text_end; + /* LINE START CACHE */ + + /* A cache of line-start information. Data is a LineParam*. */ + GList *line_start_cache; + /* Index to the start of the first visible line. */ + guint first_line_start_index; + /* The number of pixels cut off of the top line. */ + guint first_cut_pixels; + /* First visible horizontal pixel. */ + guint first_onscreen_hor_pixel; + /* First visible vertical pixel. */ + guint first_onscreen_ver_pixel; + + /* FLAGS */ + + /* True iff the cursor has been placed yet. */ + guint has_cursor : 1; + /* True iff this buffer is editable. (Allowing a cursor to be placed). */ + guint is_editable : 1; + /* True iff this buffer is wrapping lines, otherwise it is using a + * horizontal scrollbar. */ + guint line_wrap : 1; + /* Frozen, don't do updates. @@@ fixme */ + guint freeze : 1; + /* Whether a selection. */ + guint has_selection : 1; + /* Whether the selection is in the clipboard. */ + guint own_selection : 1; + /* Whether it has been realized yet. */ + + /* TEXT PROPERTIES */ + + /* A doubly-linked-list containing TextProperty objects. */ + GList *text_properties; + /* The end of this list. */ + GList *text_properties_end; + /* The first node before or on the point along with its offset to + * the point and the buffer's current point. This is the only + * PropertyMark whose index is guaranteed to remain correct + * following a buffer insertion or deletion. */ + GtkPropertyMark point; + + /* SCRATCH AREA */ + + guchar* scratch_buffer; + guint scratch_buffer_len; + + /* SCROLLING */ + + gint last_ver_value; + + /* CURSOR */ + + gint cursor_pos_x; /* Position of cursor. */ + gint cursor_pos_y; /* Baseline of line cursor is drawn on. */ + GtkPropertyMark cursor_mark; /* Where it is in the buffer. */ + gchar cursor_char; /* Character to redraw. */ + gchar cursor_char_offset; /* Distance from baseline of the font. */ + gint cursor_virtual_x; /* Where it would be if it could be. */ + gint cursor_drawn_level; /* How many people have undrawn. */ + + /* Current Line */ + + GList *current_line; + + /* Tab Stops */ + + GList *tab_stops; + gint default_tab_width; + + /* Key bindings */ + + GtkTextFunction control_keys[26]; + GtkTextFunction alt_keys[26]; + + /* Selection nonsense. */ + + guint selection_start; + guint selection_stop; +}; + +struct _GtkTextClass +{ + GtkWidgetClass parent_class; +}; + + +guint gtk_text_get_type (void); +GtkWidget* gtk_text_new (GtkAdjustment *hadj, + GtkAdjustment *vadj); +void gtk_text_set_editable (GtkText *text, + gint editable); +void gtk_text_set_adjustments (GtkText *text, + GtkAdjustment *hadj, + GtkAdjustment *vadj); +void gtk_text_set_point (GtkText *text, + guint index); +guint gtk_text_get_point (GtkText *text); +guint gtk_text_get_length (GtkText *text); +void gtk_text_freeze (GtkText *text); +void gtk_text_thaw (GtkText *text); +void gtk_text_insert (GtkText *text, + GdkFont *font, + GdkColor *fore, + GdkColor *back, + const char *chars, + gint length); +gint gtk_text_backward_delete (GtkText *text, + guint nchars); +gint gtk_text_foreward_delete (GtkText *text, + guint nchars); + + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + + +#endif /* __GTK_TEXT_H__ */ |