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Add basic interface that lets the typesetter access soft-invalidated layout information.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@16003 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg 2003-02-18 20:26:49 +00:00
parent 6b01d08cb1
commit 5f2fd0477a
3 changed files with 95 additions and 1 deletions
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81
Source/GSLayoutManager.m
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@ -2267,6 +2267,87 @@ forStartOfGlyphRange: (NSRange)glyphRange
}
-(void) _softInvalidateUseLineFrags: (int)num
withShift: (NSSize)shift
inTextContainer: (NSTextContainer *)textContainer
{
int i;
textcontainer_t *tc;
linefrag_t *lf;
for (i = 0, tc = textcontainers; i < num_textcontainers; i++, tc++)
if (tc->textContainer == textContainer)
break;
if (i == num_textcontainers)
{
NSLog(@"(%s): does not own text container", __PRETTY_FUNCTION__);
return;
}
for (i = 0, lf = &tc->linefrags[tc->num_linefrags]; i < num; i++, lf++)
{
lf->rect.origin.x += shift.width;
lf->rect.origin.y += shift.height;
lf->used_rect.origin.x += shift.width;
lf->used_rect.origin.y += shift.height;
tc->length += lf->length;
}
tc->num_soft -= num;
tc->num_linefrags += num;
layout_glyph = tc->pos + tc->length;
/*
We must have layouts beyond all the soft-invalidated line frags,
so comparing with glyphs->glyph_length is ok.
*/
if (layout_glyph == glyphs->glyph_length)
layout_char = glyphs->char_length;
else
layout_char = [self characterIndexForGlyphAtIndex: layout_glyph]; /* TODO? */
}
-(NSRect) _softInvalidateLineFragRect: (int)index
nextGlyph: (unsigned int *)next_glyph
inTextContainer: (NSTextContainer *)textContainer
{
int i;
textcontainer_t *tc;
linefrag_t *lf;
for (i = 0, tc = textcontainers; i < num_textcontainers; i++, tc++)
if (tc->textContainer == textContainer)
break;
if (i == num_textcontainers)
{
NSLog(@"(%s): does not own text container", __PRETTY_FUNCTION__);
return NSZeroRect;
}
if (index >= tc->num_soft)
return NSZeroRect;
lf = &tc->linefrags[tc->num_linefrags + index];
*next_glyph = lf->pos + lf->length;
return lf->rect;
}
-(unsigned int) _softInvalidateFirstGlyphInTextContainer: (NSTextContainer *)textContainer
{
int i;
textcontainer_t *tc;
for (i = 0, tc = textcontainers; i < num_textcontainers; i++, tc++)
if (tc->textContainer == textContainer)
break;
if (i == num_textcontainers)
{
NSLog(@"(%s): does not own text container", __PRETTY_FUNCTION__);
return (unsigned int)-1;
}
if (tc->num_soft)
return tc->linefrags[tc->num_linefrags].pos;
else
return (unsigned int)-1;
}
@end