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- /* 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
- /*
- * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
- #ifndef __GTK_TEXT_H__
- #define __GTK_TEXT_H__
-
-
- #include <gdk/gdk.h>
- #include <gtk/gtkadjustment.h>
- #include <gtk/gtkeditable.h>
-
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
-
-
- #define GTK_TYPE_TEXT (gtk_text_get_type ())
- #define GTK_TEXT(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_TEXT, GtkText))
- #define GTK_TEXT_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT, GtkTextClass))
- #define GTK_IS_TEXT(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_TEXT))
- #define GTK_IS_TEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT))
-
- typedef struct _GtkTextFont GtkTextFont;
- typedef struct _GtkPropertyMark GtkPropertyMark;
- typedef struct _GtkText GtkText;
- typedef struct _GtkTextClass GtkTextClass;
-
- struct _GtkPropertyMark
- {
- /* Position in list. */
- GList* property;
-
- /* Offset into that property. */
- guint offset;
-
- /* Current index. */
- guint index;
- };
-
- struct _GtkText
- {
- GtkEditable editable;
-
- 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. */
- union { GdkWChar *wc; guchar *ch; } 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 this buffer is wrapping lines, otherwise it is using a
- * horizontal scrollbar. */
- guint line_wrap : 1;
- guint word_wrap : 1;
- /* If a fontset is supplied for the widget, use_wchar become true,
- * and we use GdkWchar as the encoding of text. */
- guint use_wchar : 1;
-
- /* Frozen, don't do updates. @@@ fixme */
- guint freeze_count;
- /* 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 */
-
- union { GdkWChar *wc; guchar *ch; } 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. */
- GdkWChar 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;
-
- GtkTextFont *current_font; /* Text font for current style */
-
- /* Timer used for auto-scrolling off ends */
- gint timer;
-
- guint button; /* currently pressed mouse button */
- GdkGC *bg_gc; /* gc for drawing background pixmap */
- };
-
- struct _GtkTextClass
- {
- GtkEditableClass parent_class;
-
- void (*set_scroll_adjustments) (GtkText *text,
- GtkAdjustment *hadjustment,
- GtkAdjustment *vadjustment);
- };
-
-
- GtkType gtk_text_get_type (void);
- GtkWidget* gtk_text_new (GtkAdjustment *hadj,
- GtkAdjustment *vadj);
- void gtk_text_set_editable (GtkText *text,
- gboolean editable);
- void gtk_text_set_word_wrap (GtkText *text,
- gint word_wrap);
- void gtk_text_set_line_wrap (GtkText *text,
- gint line_wrap);
- 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_forward_delete (GtkText *text,
- guint nchars);
-
- #define GTK_TEXT_INDEX(t, index) (((t)->use_wchar) \
- ? ((index) < (t)->gap_position ? (t)->text.wc[index] : \
- (t)->text.wc[(index)+(t)->gap_size]) \
- : ((index) < (t)->gap_position ? (t)->text.ch[index] : \
- (t)->text.ch[(index)+(t)->gap_size]))
-
- #ifdef __cplusplus
- }
- #endif /* __cplusplus */
-
-
- #endif /* __GTK_TEXT_H__ */
-