Shadows when resizing
Shadows when resizing
- Subject: Shadows when resizing
- From: Josh Anon <email@hidden>
- Date: Mon, 20 Oct 2003 08:36:03 -0700
Hi everyone,
I have an image I composite in to a view. The view is mainly
transparent, and the image has transparency, too. The first time
through, everything works nicely with this drawing code:
- (void)drawRect:(NSRect)rect {
NSRectFillUsingOperation(rect, NSCompositeClear);
[self _drawImageProportionallyInRect_:rect];
//other stuff I've commented out
}
- (void)_drawImageProportionallyInRect_:(NSRect)rect {
if (_image) {
//do some calculations to get the dst/src rect
[NSGraphicsContext saveGraphicsState];
CGSize sz;
sz.width = 1; sz.height = 1;
CGContextSetShadowWithColor((CGContextRef)[NSGraphicsContext
currentContext],
sz,
1.0,
NULL);
[_image drawInRect:dstRect fromRect:srcRect
operation:NSCompositeSourceOver fraction:1.0];
[NSGraphicsContext restoreGraphicsState];
}
}
However, as soon as I resize the window/view, the image gets a drop
shadow. I explicitly turn shadows off, yet I can't make the shadows go
away. Even more interesting, when I set _image to nil, so that the
only thing that happens is a
NSRectFillUsingOperation(..,NSCompositeClear), I see the drop shadow
from the previous image.
Any ideas?
Thanks,
Josh
---
Josh Anon
Studio Tools, Pixar Animation Studios
email@hidden
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