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Implement extended graphics ops (composite, etc).

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@4262 72102866-910b-0410-8b05-ffd578937521
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fedor 1999-05-18 16:49:13 +00:00
parent ed2acc2520
commit 95f1109ae7
8 changed files with 266 additions and 17 deletions
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58
Source/NSImageRep.m
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@ -35,13 +35,9 @@
#include <AppKit/NSBitmapImageRep.h>
#include <AppKit/NSEPSImageRep.h>
#include <AppKit/NSPasteboard.h>
/* Backend protocol - methods that must be implemented by the backend to
complete the class */
@protocol NXImageRepBackend
- (BOOL) drawAtPoint: (NSPoint)aPoint;
- (BOOL) drawInRect: (NSRect)aRect;
@end
#include <AppKit/NSGraphicsContext.h>
#include <AppKit/NSView.h>
#include <AppKit/DPSOperators.h>
static NSMutableArray* imageReps = NULL;
@ -284,23 +280,51 @@ static NSMutableArray* imageReps = NULL;
- (BOOL) drawAtPoint: (NSPoint)aPoint
{
NSRect r;
BOOL ok, reset;
NSGraphicsContext *ctxt;
if (aPoint.x == 0 && aPoint.y == 0)
return [self draw];
r.origin = aPoint;
r.size = size;
return [self drawInRect: r];
if (size.width == 0 && size.height == 0)
return NO;
NSDebugLLog(@"NSImage", @"Drawing at point %f %f\n", aPoint.x, aPoint.y);
reset = 0;
ctxt = GSCurrentContext();
if (aPoint.x != 0 || aPoint.y != 0)
{
if ([[ctxt focusView] isFlipped])
aPoint.y -= size.height;
DPSmatrix(ctxt); DPScurrentmatrix(ctxt);
DPStranslate(ctxt, aPoint.x, aPoint.y);
reset = 1;
}
ok = [self draw];
if (reset)
DPSsetmatrix(ctxt);
return ok;
}
- (BOOL) drawInRect: (NSRect)aRect
{
float x, y;
NSSize scale;
BOOL ok;
NSGraphicsContext *ctxt;
if (size.height == 0 || size.width == 0)
NSDebugLLog(@"NSImage", @"Drawing in rect (%f %f %f %f)\n",
NSMinX(aRect), NSMinY(aRect), NSWidth(aRect), NSHeight(aRect));
if (size.width == 0 && size.height == 0)
return NO;
/* FIXME - should scale and move as necessary. */
return NO;
ctxt = GSCurrentContext();
scale = NSMakeSize(NSWidth(aRect) / size.width,
NSHeight(aRect) / size.height);
if ([[ctxt focusView] isFlipped])
aRect.origin.y -= NSHeight(aRect);
DPSmatrix(ctxt); DPScurrentmatrix(ctxt);
DPStranslate(ctxt, NSMinX(aRect), NSMinY(aRect));
DPSscale(ctxt, scale.width, scale.height);
ok = [self draw];
DPSsetmatrix(ctxt);
return ok;
}
// Managing NSImageRep Subclasses