On 16/01/2010, at 9:19 AM, David Blanton wrote:
> - (void)drawRect:(NSRect)rect {
> [super drawRect:rect];
>
> ...
> if(m_scrolling)
> {
> NSLog(@"drawRect scrolling");
>
> float v = 100*[m_vScroller floatValue];
> float h = 100*(1-[m_hScroller floatValue]);
> m_main.m_bitmap.SetOrigin(h, v);
> }
>
>
> ...
>
> }
David, It's my belief that your drawing architecture is flawed. There should be
no need/reason to modify the bitmap that you're displaying in the view when it
scrolls. Instead, the dirty rects tell you which portion of the bitmap needs to
be drawn/created. Think of the bitmap as your data model (even though it
contains pixels). It has no business knowing the state of the view.
--Graham
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