Author: fredkiefer
Date: Sun Feb 12 22:08:51 2017
New Revision: 40342
URL: http://svn.gna.org/viewcvs/gnustep?rev=40342&view=rev
Log:
* Source/NSStringDrawing.m: Use shared drawing code.
* Source/NSStringDrawing.m (cache_lookup): Try to handle case of
empty string.
Modified:
libs/gui/trunk/ChangeLog
libs/gui/trunk/Source/NSStringDrawing.m
Modified: libs/gui/trunk/ChangeLog
URL:
http://svn.gna.org/viewcvs/gnustep/libs/gui/trunk/ChangeLog?rev=40342&r1=40341&r2=40342&view=diff
==============================================================================
--- libs/gui/trunk/ChangeLog (original)
+++ libs/gui/trunk/ChangeLog Sun Feb 12 22:08:51 2017
@@ -1,3 +1,9 @@
+2017-02-12 Fred Kiefer <fredkie...@gmx.de>
+
+ * Source/NSStringDrawing.m: Use shared drawing code.
+ * Source/NSStringDrawing.m (cache_lookup): Try to handle case of
+ empty string.
+
2017-02-12 Fred Kiefer <fredkie...@gmx.de>
* Source/NSStringDrawing.m: Clean up string drawing cache code.
Modified: libs/gui/trunk/Source/NSStringDrawing.m
URL:
http://svn.gna.org/viewcvs/gnustep/libs/gui/trunk/Source/NSStringDrawing.m?rev=40342&r1=40341&r2=40342&view=diff
==============================================================================
--- libs/gui/trunk/Source/NSStringDrawing.m (original)
+++ libs/gui/trunk/Source/NSStringDrawing.m Sun Feb 12 22:08:51 2017
@@ -285,8 +285,17 @@
[c->textContainer setContainerSize: NSMakeSize(LARGE_SIZE,
LARGE_SIZE)];
}
[c->layoutManager setUsesScreenFonts: useScreenFonts];
-
- c->usedRect = [c->layoutManager usedRectForTextContainer:
c->textContainer];
+
+ if ([c->textStorage length] == 0)
+ {
+ // FIXME: We should use attributes from the original data
+ CGFloat h = [[NSFont userFontOfSize: 0] defaultLineHeightForFont];
+ c->usedRect = NSMakeRect(0.0, 0.0, 0.0, h);
+ }
+ else
+ {
+ c->usedRect = [c->layoutManager usedRectForTextContainer:
c->textContainer];
+ }
}
return c;
@@ -344,42 +353,111 @@
+(void) _setFontFlipHack: (BOOL)flip;
@end
+static void draw_at_point(cache_t *c, NSPoint point)
+{
+ NSRange r;
+ BOOL need_flip = ![[NSView focusView] isFlipped];
+ NSGraphicsContext *ctxt = GSCurrentContext();
+
+ r = NSMakeRange(0, [c->layoutManager numberOfGlyphs]);
+
+ if (need_flip)
+ {
+ DPSscale(ctxt, 1, -1);
+ point.y = -point.y;
+
+ /*
+ Adjust point.y so the lower left corner of the used rect is at the
+ point that was passed to us.
+ */
+ point.y -= NSMaxY(c->usedRect);
+
+ [NSFont _setFontFlipHack: YES];
+ }
+
+ [c->layoutManager drawBackgroundForGlyphRange: r
+ atPoint: point];
+ [c->layoutManager drawGlyphsForGlyphRange: r
+ atPoint: point];
+
+ if (need_flip)
+ {
+ DPSscale(ctxt, 1, -1);
+ [NSFont _setFontFlipHack: NO];
+ }
+}
+
+static void draw_in_rect(cache_t *c, NSRect rect)
+{
+ NSRange r;
+ BOOL need_flip = ![[NSView focusView] isFlipped];
+ BOOL need_clip = NO;
+ NSGraphicsContext *ctxt = GSCurrentContext();
+
+ /*
+ If the used rect fits completely in the rect we draw in, we save time
+ by avoiding the DPSrectclip (and the state save and restore).
+
+ This isn't completely safe; the used rect isn't guaranteed to contain
+ all parts of all glyphs.
+ */
+ if (c->usedRect.origin.x >= 0 && c->usedRect.origin.y <= 0
+ && NSMaxX(c->usedRect) <= rect.size.width
+ && NSMaxY(c->usedRect) <= rect.size.height)
+ {
+ need_clip = NO;
+ }
+ else
+ {
+ need_clip = YES;
+ DPSgsave(ctxt);
+ DPSrectclip(ctxt, rect.origin.x, rect.origin.y,
+ rect.size.width, rect.size.height);
+ }
+
+ r = [c->layoutManager
+ glyphRangeForBoundingRect: NSMakeRect(0, 0, rect.size.width,
+ rect.size.height)
+ inTextContainer: c->textContainer];
+
+ if (need_flip)
+ {
+ DPSscale(ctxt, 1, -1);
+ rect.origin.y = -NSMaxY(rect);
+ [NSFont _setFontFlipHack: YES];
+ }
+
+ [c->layoutManager drawBackgroundForGlyphRange: r
+ atPoint: rect.origin];
+ [c->layoutManager drawGlyphsForGlyphRange: r
+ atPoint: rect.origin];
+
+ if (need_flip)
+ {
+ DPSscale(ctxt, 1, -1);
+ [NSFont _setFontFlipHack: NO];
+ }
+
+ if (need_clip)
+ {
+ /* Restore the original clipping path. */
+ DPSgrestore(ctxt);
+ }
+}
@implementation NSAttributedString (NSStringDrawing)
- (void) drawAtPoint: (NSPoint)point
{
cache_t *c;
- NSRange r;
- NSGraphicsContext *ctxt = GSCurrentContext();
cache_lock();
NS_DURING
{
prepare_attributed_string(self);
c = cache_lookup(NO, NSZeroSize, use_screen_fonts());
-
- r = NSMakeRange(0, [c->layoutManager numberOfGlyphs]);
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- point.y = -point.y;
-
- /*
- Adjust point.y so the lower left corner of the used rect is at the
- point that was passed to us.
- */
- point.y -= NSMaxY(c->usedRect);
-
- [NSFont _setFontFlipHack: YES];
- }
-
- [c->layoutManager drawBackgroundForGlyphRange: r
- atPoint: point];
-
- [c->layoutManager drawGlyphsForGlyphRange: r
- atPoint: point];
+
+ draw_at_point(c, point);
}
NS_HANDLER
{
@@ -388,12 +466,6 @@
}
NS_ENDHANDLER;
cache_unlock();
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- [NSFont _setFontFlipHack: NO];
- }
}
- (void) drawInRect: (NSRect)rect
@@ -407,9 +479,6 @@
{
// FIXME: This ignores options
cache_t *c;
- NSRange r;
- BOOL need_clip = NO;
- NSGraphicsContext *ctxt = GSCurrentContext();
if (rect.size.width <= 0 || rect.size.height <= 0)
return;
@@ -419,44 +488,7 @@
{
prepare_attributed_string(self);
c = cache_lookup(YES, rect.size, use_screen_fonts());
-
- /*
- If the used rect fits completely in the rect we draw in, we save time
- by avoiding the DPSrectclip (and the state save and restore).
-
- This isn't completely safe; the used rect isn't guaranteed to contain
- all parts of all glyphs.
- */
- if (c->usedRect.origin.x >= 0 && c->usedRect.origin.y <= 0
- && NSMaxX(c->usedRect) <= rect.size.width
- && NSMaxY(c->usedRect) <= rect.size.height)
- {
- need_clip = NO;
- }
- else
- {
- need_clip = YES;
- DPSgsave(ctxt);
- DPSrectclip(ctxt, rect.origin.x, rect.origin.y,
- rect.size.width, rect.size.height);
- }
-
- r = [c->layoutManager
- glyphRangeForBoundingRect: NSMakeRect(0, 0, rect.size.width,
- rect.size.height)
- inTextContainer: c->textContainer];
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- rect.origin.y = -NSMaxY(rect);
- [NSFont _setFontFlipHack: YES];
- }
-
- [c->layoutManager drawBackgroundForGlyphRange: r
- atPoint: rect.origin];
- [c->layoutManager drawGlyphsForGlyphRange: r
- atPoint: rect.origin];
+ draw_in_rect(c, rect);
}
NS_HANDLER
{
@@ -465,18 +497,6 @@
}
NS_ENDHANDLER;
cache_unlock();
-
- [NSFont _setFontFlipHack: NO];
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- }
-
- if (need_clip)
- {
- /* Restore the original clipping path. */
- DPSgrestore(ctxt);
- }
}
- (NSSize) size
@@ -520,35 +540,13 @@
- (void) drawAtPoint: (NSPoint)point withAttributes: (NSDictionary *)attrs
{
cache_t *c;
- NSRange r;
- NSGraphicsContext *ctxt = GSCurrentContext();
cache_lock();
NS_DURING
{
prepare_string(self, attrs);
c = cache_lookup(NO, NSZeroSize, use_screen_fonts());
-
- r = NSMakeRange(0, [c->layoutManager numberOfGlyphs]);
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- point.y = -point.y;
-
- /*
- Adjust point.y so the lower left corner of the used rect is at the
- point that was passed to us.
- */
- point.y -= NSMaxY(c->usedRect);
-
- [NSFont _setFontFlipHack: YES];
- }
-
- [c->layoutManager drawBackgroundForGlyphRange: r
- atPoint: point];
- [c->layoutManager drawGlyphsForGlyphRange: r
- atPoint: point];
+ draw_at_point(c, point);
}
NS_HANDLER
{
@@ -557,12 +555,6 @@
}
NS_ENDHANDLER;
cache_unlock();
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- [NSFont _setFontFlipHack: NO];
- }
}
- (void) drawInRect: (NSRect)rect withAttributes: (NSDictionary *)attrs
@@ -578,9 +570,6 @@
{
// FIXME: This ignores options
cache_t *c;
- NSRange r;
- BOOL need_clip = NO;
- NSGraphicsContext *ctxt = GSCurrentContext();
if (rect.size.width <= 0 || rect.size.height <= 0)
return;
@@ -590,44 +579,7 @@
{
prepare_string(self, attrs);
c = cache_lookup(YES, rect.size, use_screen_fonts());
-
- /*
- If the used rect fits completely in the rect we draw in, we save time
- by avoiding the DPSrectclip (and the state save and restore).
-
- This isn't completely safe; the used rect isn't guaranteed to contain
- all parts of all glyphs.
- */
- if (c->usedRect.origin.x >= 0 && c->usedRect.origin.y <= 0
- && NSMaxX(c->usedRect) <= rect.size.width
- && NSMaxY(c->usedRect) <= rect.size.height)
- {
- need_clip = NO;
- }
- else
- {
- need_clip = YES;
- DPSgsave(ctxt);
- DPSrectclip(ctxt, rect.origin.x, rect.origin.y,
- rect.size.width, rect.size.height);
- }
-
- r = [c->layoutManager
- glyphRangeForBoundingRect: NSMakeRect(0, 0, rect.size.width,
- rect.size.height)
- inTextContainer: c->textContainer];
-
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- rect.origin.y = -NSMaxY(rect);
- [NSFont _setFontFlipHack: YES];
- }
-
- [c->layoutManager drawBackgroundForGlyphRange: r
- atPoint: rect.origin];
- [c->layoutManager drawGlyphsForGlyphRange: r
- atPoint: rect.origin];
+ draw_in_rect(c, rect);
}
NS_HANDLER
{
@@ -636,18 +588,6 @@
}
NS_ENDHANDLER;
cache_unlock();
-
- [NSFont _setFontFlipHack: NO];
- if (![[NSView focusView] isFlipped])
- {
- DPSscale(ctxt, 1, -1);
- }
-
- if (need_clip)
- {
- /* Restore the original clipping path. */
- DPSgrestore(ctxt);
- }
}
- (NSSize) sizeWithAttributes: (NSDictionary *)attrs
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