Hi all,
I have a command line tool in a Terminal session (service) that generates PNGs
via NSBezierPath drawing. In this tool I create the view and corresponding
window like so
mapView = [[ESMMapView alloc] initWithFrame:NSMakeRect(0, 0,
_imageSize.width, _imageSize.height)];
window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0,0,
_imageSize.width, _imageSize.height) styleMask:NSBorderlessWindowMask
backing:NSBackingStoreNonretained defer:NO];
[window setContentView:mapView];
and then do
[mapView lockFocus];
NSBitmapImageRep *rep = [[NSBitmapImageRep alloc]
initWithFocusedViewRect:[mapView bounds]];
NSData *data = [[[rep representationUsingType:NSPNGFileType
properties:[NSDictionary dictionaryWithObject:[NSNumber numberWithInt:1]
forKey:@"NSImageInterlaced"]] retain] autorelease];
[mapView unlockFocus];
to get the PNG with the drawing code in the
- (void)drawRect:(NSRect)rect
method of my ESMMapView.
The stuff drawn is scaled somehow. For test purposes I did
NSPoint pointA = NSMakePoint(10, 10);
NSPoint pointB = NSMakePoint(850, 890);
[[NSColor purpleColor] set];
NSBezierPath *currentBezier = [NSBezierPath bezierPath];
[currentBezier moveToPoint:pointA];
[currentBezier lineToPoint:pointB];
[currentBezier setLineWidth:2.0];
[currentBezier stroke];
This should in a view with size {851, 899} get me a purple line starting close
to the lower left corner and ending close to the top right corner. But that's
not the case. The picture is drawn zoomed in!?? :-(
I have checked the clipView, the bounds rect of the view, set the transform
matrix to unity first thing in drawRect:
NSAffineTransform* xform = [NSAffineTransform transform];
[xform set];
No avail. Everything looks like it should in my opinion but the resulting image
is still zoomed in (scaled and incomplete). The exact same code works correctly
on GNUstep!
Any idea what might be wrong and how to fix this?
Thanks,
Andreas
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