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Added drawing code for text attachments (Still untested, as there

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is a problem with unicode characters in NSAttributedString)


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@10071 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Fred Kiefer 2001-06-04 16:24:48 +00:00
parent 2db21e4d84
commit 8d1b7ad36a
1 changed files with 53 additions and 5 deletions
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58
Source/NSStringDrawing.m
View file

@ -29,6 +29,7 @@
#include <Foundation/Foundation.h>
#include <AppKit/NSStringDrawing.h>
#include <AppKit/NSTextAttachment.h>
#include <AppKit/AppKit.h>
#include "GSTextStorage.h"
@ -129,6 +130,7 @@ typedef struct GSTextRunStruct {
float width; // Width of entire run.
float height; // Height of entire run.
float baseline; // Where to draw glyphs.
// These fields are for normal glyphs
NSFont *font;
NSColor *bg;
NSColor *fg;
@ -137,10 +139,32 @@ typedef struct GSTextRunStruct {
float base;
float kern;
int ligature;
// Fields for special glyphs
id <NSTextAttachmentCell> cell;
unsigned charIndex;
// Forward and backward link
struct GSTextRunStruct *last;
struct GSTextRunStruct *next;
} GSTextRun;
static void
drawSpecialRun(GSTextRun *run, NSPoint origin, GSDrawInfo *draw)
{
// Currently this is only used for attachments
id <NSTextAttachmentCell> cell = run->cell;
unsigned charIndex = run->charIndex;
NSRect cellFrame = NSMakeRect(origin.x, origin.y,
run->glyphs[0].adv.width,
run->glyphs[0].adv.height);
NSView *controlView = [draw->ctxt focusView];
[cell drawWithFrame: cellFrame
inView: controlView
characterIndex: charIndex
layoutManager: nil];
}
static void
drawRun(GSTextRun *run, NSPoint origin, GSDrawInfo *draw)
{
@ -156,6 +180,13 @@ drawRun(GSTextRun *run, NSPoint origin, GSDrawInfo *draw)
{
origin.y += run->base;
}
if (run->glyphs[0].glyph == NSControlGlyph)
{
drawSpecialRun(run, origin, draw);
return;
}
/*
* Set current font and color if necessary.
*/
@ -228,11 +259,6 @@ drawRun(GSTextRun *run, NSPoint origin, GSDrawInfo *draw)
}
}
#if 0
/* FIXME: Hack to force DGS to flush the text */
DPSrectfill(draw->ctxt, 0, 0, 0.5, 0.5);
#endif
if (run->underline)
{
DPSmoveto(draw->ctxt, origin.x, origin.y);
@ -240,6 +266,22 @@ drawRun(GSTextRun *run, NSPoint origin, GSDrawInfo *draw)
}
}
static void
setupSpecialRun(GSTextRun *run, unsigned length, unichar *chars, unsigned pos,
NSDictionary *attr)
{
NSTextAttachment *attachment = [attr objectForKey: NSAttachmentAttributeName];
run->cell = [attachment attachmentCell];
run->charIndex = pos;
run->glyphs[0].glyph = NSControlGlyph;
// We should better call the cellFrameForTextContainer:... method here
run->glyphs[0].adv = [run->cell cellSize];
run->baseline = [run->cell cellBaselineOffset].y;
run->height = run->glyphs[0].adv.height;
}
static void
setupRun(GSTextRun *run, unsigned length, unichar *chars, unsigned pos,
NSDictionary *attr, GSGlyphArray *g, GSTextRun *last)
@ -264,6 +306,12 @@ setupRun(GSTextRun *run, unsigned length, unichar *chars, unsigned pos,
run->glyphs = &g->glyphs[g->used];
g->used += run->glyphCount;
if (chars[0] == NSAttachmentCharacter)
{
setupSpecialRun(run, length, chars, pos, attr);
return;
}
// Get font to be used by characters in run.
run->font = (NSFont*)[attr objectForKey: NSFontAttributeName];
if (run->font == nil)