forked from AuroraMiddleware/gtk
cca8dd6347
2005-03-20 Matthias Clasen <mclasen@redhat.com> Make PLT-reduction work with gcc4, and don't include everything in gdkalias.h: * gtk/grk.symbols: Group symbols by header and source file. * gtk/makegtkalias.pl: Protect definitions by the same preprocessor symbols used to guard the headers. Move the alias declarations to a separate file which is produced when calling makegtkalias.pl -def * gdk/Makefile.am (gtkaliasdef.c): Add a rule to generate this file. * gtk/*.c: Include gtkalias.h after the other headers, include gtkaliasdef.c at the bottom. * gtk/*.h: Small cleanups.
146 lines
6.4 KiB
C
146 lines
6.4 KiB
C
#ifndef __GTK_TEXT_SEGMENT_H__
|
|
#define __GTK_TEXT_SEGMENT_H__
|
|
|
|
#include <gtk/gtktexttag.h>
|
|
#include <gtk/gtktextiter.h>
|
|
#include <gtk/gtktextmarkprivate.h>
|
|
#include <gtk/gtktextchild.h>
|
|
#include <gtk/gtktextchildprivate.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/*
|
|
* Segments: each line is divided into one or more segments, where each
|
|
* segment is one of several things, such as a group of characters, a
|
|
* tag toggle, a mark, or an embedded widget. Each segment starts with
|
|
* a standard header followed by a body that varies from type to type.
|
|
*/
|
|
|
|
/* This header has the segment type, and two specific segments
|
|
(character and toggle segments) */
|
|
|
|
/* Information a BTree stores about a tag. */
|
|
typedef struct _GtkTextTagInfo GtkTextTagInfo;
|
|
struct _GtkTextTagInfo {
|
|
GtkTextTag *tag;
|
|
GtkTextBTreeNode *tag_root; /* highest-level node containing the tag */
|
|
gint toggle_count; /* total toggles of this tag below tag_root */
|
|
};
|
|
|
|
/* Body of a segment that toggles a tag on or off */
|
|
struct _GtkTextToggleBody {
|
|
GtkTextTagInfo *info; /* Tag that starts or ends here. */
|
|
gboolean inNodeCounts; /* TRUE means this toggle has been
|
|
* accounted for in node toggle
|
|
* counts; FALSE means it hasn't, yet. */
|
|
};
|
|
|
|
|
|
/* Class struct for segments */
|
|
|
|
/* Split seg at index, returning list of two new segments, and freeing seg */
|
|
typedef GtkTextLineSegment* (*GtkTextSegSplitFunc) (GtkTextLineSegment *seg,
|
|
gint index);
|
|
|
|
/* Delete seg which is contained in line; if tree_gone, the tree is being
|
|
* freed in its entirety, which may matter for some reason (?)
|
|
* Return TRUE if the segment is not deleteable, e.g. a mark.
|
|
*/
|
|
typedef gboolean (*GtkTextSegDeleteFunc) (GtkTextLineSegment *seg,
|
|
GtkTextLine *line,
|
|
gboolean tree_gone);
|
|
|
|
/* Called after segment structure of line changes, so segments can
|
|
* cleanup (e.g. merge with adjacent segments). Returns a segment list
|
|
* to replace the original segment list with. The line argument is
|
|
* the current line.
|
|
*/
|
|
typedef GtkTextLineSegment* (*GtkTextSegCleanupFunc) (GtkTextLineSegment *seg,
|
|
GtkTextLine *line);
|
|
|
|
/* Called when a segment moves from one line to another. CleanupFunc is also
|
|
* called in that case, so many segments just use CleanupFunc, I'm not sure
|
|
* what's up with that (this function may not be needed...)
|
|
*/
|
|
typedef void (*GtkTextSegLineChangeFunc) (GtkTextLineSegment *seg,
|
|
GtkTextLine *line);
|
|
|
|
/* Called to do debug checks on the segment. */
|
|
typedef void (*GtkTextSegCheckFunc) (GtkTextLineSegment *seg,
|
|
GtkTextLine *line);
|
|
|
|
struct _GtkTextLineSegmentClass {
|
|
char *name; /* Name of this kind of segment. */
|
|
gboolean leftGravity; /* If a segment has zero size (e.g. a
|
|
* mark or tag toggle), does it
|
|
* attach to character to its left
|
|
* or right? 1 means left, 0 means
|
|
* right. */
|
|
GtkTextSegSplitFunc splitFunc; /* Procedure to split large segment
|
|
* into two smaller ones. */
|
|
GtkTextSegDeleteFunc deleteFunc; /* Procedure to call to delete
|
|
* segment. */
|
|
GtkTextSegCleanupFunc cleanupFunc; /* After any change to a line, this
|
|
* procedure is invoked for all
|
|
* segments left in the line to
|
|
* perform any cleanup they wish
|
|
* (e.g. joining neighboring
|
|
* segments). */
|
|
GtkTextSegLineChangeFunc lineChangeFunc;
|
|
/* Invoked when a segment is about
|
|
* to be moved from its current line
|
|
* to an earlier line because of
|
|
* a deletion. The line is that
|
|
* for the segment's old line.
|
|
* CleanupFunc will be invoked after
|
|
* the deletion is finished. */
|
|
|
|
GtkTextSegCheckFunc checkFunc; /* Called during consistency checks
|
|
* to check internal consistency of
|
|
* segment. */
|
|
};
|
|
|
|
/*
|
|
* The data structure below defines line segments.
|
|
*/
|
|
|
|
struct _GtkTextLineSegment {
|
|
GtkTextLineSegmentClass *type; /* Pointer to record describing
|
|
* segment's type. */
|
|
GtkTextLineSegment *next; /* Next in list of segments for this
|
|
* line, or NULL for end of list. */
|
|
|
|
int char_count; /* # of chars of index space occupied */
|
|
|
|
int byte_count; /* Size of this segment (# of bytes
|
|
* of index space it occupies). */
|
|
union {
|
|
char chars[4]; /* Characters that make up character
|
|
* info. Actual length varies to
|
|
* hold as many characters as needed.*/
|
|
GtkTextToggleBody toggle; /* Information about tag toggle. */
|
|
GtkTextMarkBody mark; /* Information about mark. */
|
|
GtkTextPixbuf pixbuf; /* Child pixbuf */
|
|
GtkTextChildBody child; /* Child widget */
|
|
} body;
|
|
};
|
|
|
|
|
|
GtkTextLineSegment *gtk_text_line_segment_split (const GtkTextIter *iter);
|
|
|
|
GtkTextLineSegment *_gtk_char_segment_new (const gchar *text,
|
|
guint len);
|
|
GtkTextLineSegment *_gtk_char_segment_new_from_two_strings (const gchar *text1,
|
|
guint len1,
|
|
const gchar *text2,
|
|
guint len2);
|
|
GtkTextLineSegment *_gtk_toggle_segment_new (GtkTextTagInfo *info,
|
|
gboolean on);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|
|
|
|
|