forked from AuroraMiddleware/gtk
8282698201
This changes gtk_text_buffer_insert_texture() to gtk_text_buffer_insert_paintable() which is strictly more useful (as textures are paintables). It also fixes the code to actually support drawing the paintables (as well as tracking changes to the paintables.
352 lines
21 KiB
C
352 lines
21 KiB
C
/* GTK - The GIMP Toolkit
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* gtktextbtree.h Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_TEXT_BTREE_H__
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#define __GTK_TEXT_BTREE_H__
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#if 0
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#define DEBUG_VALIDATION_AND_SCROLLING
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#endif
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#ifdef DEBUG_VALIDATION_AND_SCROLLING
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#define DV(x) (x)
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#else
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#define DV(x)
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#endif
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#include <gtk/gtktextbuffer.h>
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#include <gtk/gtktexttag.h>
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#include <gtk/gtktextmark.h>
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#include <gtk/gtktextchild.h>
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#include <gtk/gtktextsegment.h>
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#include <gtk/gtktextiter.h>
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G_BEGIN_DECLS
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GtkTextBTree *_gtk_text_btree_new (GtkTextTagTable *table,
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GtkTextBuffer *buffer);
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void _gtk_text_btree_ref (GtkTextBTree *tree);
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void _gtk_text_btree_unref (GtkTextBTree *tree);
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GtkTextBuffer *_gtk_text_btree_get_buffer (GtkTextBTree *tree);
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guint _gtk_text_btree_get_chars_changed_stamp (GtkTextBTree *tree);
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guint _gtk_text_btree_get_segments_changed_stamp (GtkTextBTree *tree);
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void _gtk_text_btree_segments_changed (GtkTextBTree *tree);
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gboolean _gtk_text_btree_is_end (GtkTextBTree *tree,
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GtkTextLine *line,
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GtkTextLineSegment *seg,
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int byte_index,
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int char_offset);
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/* Indexable segment mutation */
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void _gtk_text_btree_delete (GtkTextIter *start,
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GtkTextIter *end);
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void _gtk_text_btree_insert (GtkTextIter *iter,
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const gchar *text,
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gint len);
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void _gtk_text_btree_insert_paintable (GtkTextIter *iter,
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GdkPaintable *texture);
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void _gtk_text_btree_insert_child_anchor (GtkTextIter *iter,
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GtkTextChildAnchor *anchor);
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void _gtk_text_btree_unregister_child_anchor (GtkTextChildAnchor *anchor);
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/* View stuff */
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GtkTextLine *_gtk_text_btree_find_line_by_y (GtkTextBTree *tree,
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gpointer view_id,
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gint ypixel,
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gint *line_top_y);
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gint _gtk_text_btree_find_line_top (GtkTextBTree *tree,
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GtkTextLine *line,
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gpointer view_id);
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void _gtk_text_btree_add_view (GtkTextBTree *tree,
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GtkTextLayout *layout);
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void _gtk_text_btree_remove_view (GtkTextBTree *tree,
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gpointer view_id);
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void _gtk_text_btree_invalidate_region (GtkTextBTree *tree,
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const GtkTextIter *start,
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const GtkTextIter *end,
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gboolean cursors_only);
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void _gtk_text_btree_get_view_size (GtkTextBTree *tree,
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gpointer view_id,
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gint *width,
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gint *height);
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gboolean _gtk_text_btree_is_valid (GtkTextBTree *tree,
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gpointer view_id);
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gboolean _gtk_text_btree_validate (GtkTextBTree *tree,
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gpointer view_id,
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gint max_pixels,
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gint *y,
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gint *old_height,
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gint *new_height);
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void _gtk_text_btree_validate_line (GtkTextBTree *tree,
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GtkTextLine *line,
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gpointer view_id);
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/* Tag */
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void _gtk_text_btree_tag (const GtkTextIter *start,
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const GtkTextIter *end,
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GtkTextTag *tag,
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gboolean apply);
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/* "Getters" */
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GtkTextLine * _gtk_text_btree_get_line (GtkTextBTree *tree,
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gint line_number,
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gint *real_line_number);
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GtkTextLine * _gtk_text_btree_get_line_no_last (GtkTextBTree *tree,
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gint line_number,
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gint *real_line_number);
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GtkTextLine * _gtk_text_btree_get_end_iter_line (GtkTextBTree *tree);
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GtkTextLine * _gtk_text_btree_get_line_at_char (GtkTextBTree *tree,
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gint char_index,
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gint *line_start_index,
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gint *real_char_index);
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GtkTextTag** _gtk_text_btree_get_tags (const GtkTextIter *iter,
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gint *num_tags);
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gchar *_gtk_text_btree_get_text (const GtkTextIter *start,
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const GtkTextIter *end,
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gboolean include_hidden,
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gboolean include_nonchars);
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gint _gtk_text_btree_line_count (GtkTextBTree *tree);
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gint _gtk_text_btree_char_count (GtkTextBTree *tree);
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gboolean _gtk_text_btree_char_is_invisible (const GtkTextIter *iter);
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/* Get iterators (these are implemented in gtktextiter.c) */
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void _gtk_text_btree_get_iter_at_char (GtkTextBTree *tree,
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GtkTextIter *iter,
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gint char_index);
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void _gtk_text_btree_get_iter_at_line_char (GtkTextBTree *tree,
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GtkTextIter *iter,
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gint line_number,
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gint char_index);
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void _gtk_text_btree_get_iter_at_line_byte (GtkTextBTree *tree,
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GtkTextIter *iter,
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gint line_number,
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gint byte_index);
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gboolean _gtk_text_btree_get_iter_from_string (GtkTextBTree *tree,
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GtkTextIter *iter,
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const gchar *string);
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gboolean _gtk_text_btree_get_iter_at_mark_name (GtkTextBTree *tree,
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GtkTextIter *iter,
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const gchar *mark_name);
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void _gtk_text_btree_get_iter_at_mark (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextMark *mark);
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void _gtk_text_btree_get_iter_at_paintable (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextLineSegment *seg);
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void _gtk_text_btree_get_end_iter (GtkTextBTree *tree,
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GtkTextIter *iter);
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void _gtk_text_btree_get_iter_at_line (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextLine *line,
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gint byte_offset);
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gboolean _gtk_text_btree_get_iter_at_first_toggle (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextTag *tag);
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gboolean _gtk_text_btree_get_iter_at_last_toggle (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextTag *tag);
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void _gtk_text_btree_get_iter_at_child_anchor (GtkTextBTree *tree,
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GtkTextIter *iter,
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GtkTextChildAnchor *anchor);
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/* Manipulate marks */
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GtkTextMark *_gtk_text_btree_set_mark (GtkTextBTree *tree,
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GtkTextMark *existing_mark,
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const gchar *name,
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gboolean left_gravity,
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const GtkTextIter *index,
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gboolean should_exist);
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void _gtk_text_btree_remove_mark_by_name (GtkTextBTree *tree,
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const gchar *name);
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void _gtk_text_btree_remove_mark (GtkTextBTree *tree,
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GtkTextMark *segment);
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gboolean _gtk_text_btree_get_selection_bounds (GtkTextBTree *tree,
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GtkTextIter *start,
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GtkTextIter *end);
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void _gtk_text_btree_place_cursor (GtkTextBTree *tree,
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const GtkTextIter *where);
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void _gtk_text_btree_select_range (GtkTextBTree *tree,
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const GtkTextIter *ins,
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const GtkTextIter *bound);
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gboolean _gtk_text_btree_mark_is_insert (GtkTextBTree *tree,
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GtkTextMark *segment);
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gboolean _gtk_text_btree_mark_is_selection_bound (GtkTextBTree *tree,
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GtkTextMark *segment);
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GtkTextMark *_gtk_text_btree_get_insert (GtkTextBTree *tree);
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GtkTextMark *_gtk_text_btree_get_selection_bound (GtkTextBTree *tree);
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GtkTextMark *_gtk_text_btree_get_mark_by_name (GtkTextBTree *tree,
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const gchar *name);
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GtkTextLine * _gtk_text_btree_first_could_contain_tag (GtkTextBTree *tree,
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GtkTextTag *tag);
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GtkTextLine * _gtk_text_btree_last_could_contain_tag (GtkTextBTree *tree,
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GtkTextTag *tag);
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/* Lines */
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/* Chunk of data associated with a line; views can use this to store
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info at the line. They should "subclass" the header struct here. */
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struct _GtkTextLineData {
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gpointer view_id;
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GtkTextLineData *next;
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gint height;
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gint top_ink : 16;
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gint bottom_ink : 16;
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signed int width : 24;
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guint valid : 8; /* Actually a boolean */
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};
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/*
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* The data structure below defines a single line of text (from newline
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* to newline, not necessarily what appears on one line of the screen).
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*
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* You can consider this line a "paragraph" also
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*/
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struct _GtkTextLine {
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GtkTextBTreeNode *parent; /* Pointer to parent node containing
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* line. */
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GtkTextLine *next; /* Next in linked list of lines with
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* same parent node in B-tree. NULL
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* means end of list. */
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GtkTextLineSegment *segments; /* First in ordered list of segments
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* that make up the line. */
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GtkTextLineData *views; /* data stored here by views */
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guchar dir_strong; /* BiDi algo dir of line */
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guchar dir_propagated_back; /* BiDi algo dir of next line */
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guchar dir_propagated_forward; /* BiDi algo dir of prev line */
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};
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gint _gtk_text_line_get_number (GtkTextLine *line);
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gboolean _gtk_text_line_char_has_tag (GtkTextLine *line,
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GtkTextBTree *tree,
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gint char_in_line,
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GtkTextTag *tag);
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gboolean _gtk_text_line_byte_has_tag (GtkTextLine *line,
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GtkTextBTree *tree,
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gint byte_in_line,
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GtkTextTag *tag);
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gboolean _gtk_text_line_is_last (GtkTextLine *line,
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GtkTextBTree *tree);
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gboolean _gtk_text_line_contains_end_iter (GtkTextLine *line,
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GtkTextBTree *tree);
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GtkTextLine * _gtk_text_line_next (GtkTextLine *line);
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GtkTextLine * _gtk_text_line_next_excluding_last (GtkTextLine *line);
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GtkTextLine * _gtk_text_line_previous (GtkTextLine *line);
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void _gtk_text_line_add_data (GtkTextLine *line,
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GtkTextLineData *data);
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gpointer _gtk_text_line_remove_data (GtkTextLine *line,
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gpointer view_id);
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gpointer _gtk_text_line_get_data (GtkTextLine *line,
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gpointer view_id);
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void _gtk_text_line_invalidate_wrap (GtkTextLine *line,
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GtkTextLineData *ld);
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gint _gtk_text_line_char_count (GtkTextLine *line);
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gint _gtk_text_line_byte_count (GtkTextLine *line);
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gint _gtk_text_line_char_index (GtkTextLine *line);
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GtkTextLineSegment *_gtk_text_line_byte_to_segment (GtkTextLine *line,
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gint byte_offset,
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gint *seg_offset);
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GtkTextLineSegment *_gtk_text_line_char_to_segment (GtkTextLine *line,
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gint char_offset,
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gint *seg_offset);
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gboolean _gtk_text_line_byte_locate (GtkTextLine *line,
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gint byte_offset,
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GtkTextLineSegment **segment,
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GtkTextLineSegment **any_segment,
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gint *seg_byte_offset,
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gint *line_byte_offset);
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gboolean _gtk_text_line_char_locate (GtkTextLine *line,
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gint char_offset,
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GtkTextLineSegment **segment,
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GtkTextLineSegment **any_segment,
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gint *seg_char_offset,
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gint *line_char_offset);
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void _gtk_text_line_byte_to_char_offsets (GtkTextLine *line,
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gint byte_offset,
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gint *line_char_offset,
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gint *seg_char_offset);
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void _gtk_text_line_char_to_byte_offsets (GtkTextLine *line,
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gint char_offset,
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gint *line_byte_offset,
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gint *seg_byte_offset);
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GtkTextLineSegment *_gtk_text_line_byte_to_any_segment (GtkTextLine *line,
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gint byte_offset,
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gint *seg_offset);
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GtkTextLineSegment *_gtk_text_line_char_to_any_segment (GtkTextLine *line,
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gint char_offset,
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gint *seg_offset);
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gint _gtk_text_line_byte_to_char (GtkTextLine *line,
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gint byte_offset);
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gint _gtk_text_line_char_to_byte (GtkTextLine *line,
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gint char_offset);
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GtkTextLine * _gtk_text_line_next_could_contain_tag (GtkTextLine *line,
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GtkTextBTree *tree,
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GtkTextTag *tag);
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GtkTextLine * _gtk_text_line_previous_could_contain_tag (GtkTextLine *line,
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GtkTextBTree *tree,
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GtkTextTag *tag);
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GtkTextLineData *_gtk_text_line_data_new (GtkTextLayout *layout,
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GtkTextLine *line);
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/* Debug */
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void _gtk_text_btree_check (GtkTextBTree *tree);
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void _gtk_text_btree_spew (GtkTextBTree *tree);
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extern gboolean _gtk_text_view_debug_btree;
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/* ignore, exported only for gtktextsegment.c */
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void _gtk_toggle_segment_check_func (GtkTextLineSegment *segPtr,
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GtkTextLine *line);
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void _gtk_change_node_toggle_count (GtkTextBTreeNode *node,
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GtkTextTagInfo *info,
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gint delta);
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/* for gtktextmark.c */
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void _gtk_text_btree_release_mark_segment (GtkTextBTree *tree,
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GtkTextLineSegment *segment);
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/* for coordination with the tag table */
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void _gtk_text_btree_notify_will_remove_tag (GtkTextBTree *tree,
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GtkTextTag *tag);
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G_END_DECLS
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#endif
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