mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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8130a8a227
Mon Mar 1 10:41:27 2004 Owen Taylor <otaylor@redhat.com>
Patch from Dov Grobgeld to implement auto-bidi-direction
for GtkTextView (#118543)
* gtk/gtktextbtree.[ch]: Resolve bidi base direction
for each line by propagating backwards/forwards as
necessary.
* gtk/gtktextlayout.[ch] gtk/gtktextview.c: Set the
bidi base direction for the ;ine with the cursor from
the keyboard direction. Add gtk_text_layout_set_keyboard_direction().
Mon Mar 1 10:31:11 2004 Owen Taylor <otaylor@redhat.com>
* gtk/gtkentry.[ch]: Implement auto-bidi-direction,
based on a patch from Dov Grobgeld. (#118540)
325 lines
20 KiB
C
325 lines
20 KiB
C
#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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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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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_pixbuf (GtkTextIter *iter,
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GdkPixbuf *pixbuf);
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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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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_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
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*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_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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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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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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