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