Re: How to draw whole NSImage inside custom rect in NSView
Re: How to draw whole NSImage inside custom rect in NSView
- Subject: Re: How to draw whole NSImage inside custom rect in NSView
- From: "Ken Ferry" <email@hidden>
- Date: Tue, 11 Nov 2008 14:28:16 -0800
Hi Alexander,
Your code will draw the image in maxScanArea. You should probably
look for a bug elsewhere.
I like to replace complex drawing with simple color fills when
debugging drawing location issues. At least it limits what could go
wrong.
-Ken
On Tue, Nov 11, 2008 at 2:17 PM, Alexander Shmelev <email@hidden> wrote:
> Hello
>
> I have custom NSView, and want to draw whole NSImage inside some custom
> rectangular area of NSView.
> I tried to use [NSImage drawInRect:...] but result does not fit desired
> rectangular area of NSView.
>
>
> My code:
>
> - (void) setPreviewWidth:(float)width height:(float)height
> {
> margin = width / 25;
>
> maxScanArea = NSMakeRect(margin, margin, width, height);
> canvasArea = NSMakeRect(0, 0, width + 2.0 * margin, height + 2.0 *
> margin);
> [self setBounds:canvasArea];
> }
>
> - (void) drawRect:(NSRect)rect
> {
>
>
> // Drawing image in preview
> if (image) {
> NSRect imageRect;
> imageRect.origin = NSZeroPoint;
> imageRect.size = [image size];
>
> [image drawInRect:maxScanArea
> fromRect:imageRect
> operation:NSCompositeSourceOver
> fraction:1];
> // I want image to be drawn in maxScanArea rect, but it is
> drawn in [self bounds] rect.
>
> }
> }
>
> Could you advise how can I draw exactly inside maxScanArea NSRect in NSView?
>
>
> BR, Alexander.
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