We have an NSView subclass. It's in an NSScrollView. The view has 1 CALayer
added to it, so we have the view's wantsLayer set to YES. This gives us tiled
drawing in our view. We have a case where the view is over 5000 pixels wide and
the scroll view is only 600 and some wide. If we jump to the extreme right by
using [view scrollPoint:pos], we're seeing some of the tiles having an x origin
way back at 0, while some are correctly way over at the right around 5000.
What's going on here? If we're revealing the rightmost portion of the view, it
has no business drawing the leftmost portion. Below shows the output of the
current CGContextGetClipBoundingBox.
{origin = {x = 0, y = 191}, size = {width = 512, height = 512}}
{origin = {x = 512, y = 703}, size = {width = 512, height = 512}}
{origin = {x = 0, y = 703}, size = {width = 512, height = 512}}
{origin = {x = 5120, y = 191}, size = {width = 512, height = 512}}
{origin = {x = 4608, y = 191}, size = {width = 512, height = 512}}
{origin = {x = 512, y = 191}, size = {width = 512, height = 512}}
{origin = {x = 0, y = 191}, size = {width = 512, height = 512}}
{origin = {x = 5632, y = 703}, size = {width = 292, height = 512}}
{origin = {x = 5120, y = 703}, size = {width = 512, height = 512}}
{origin = {x = 4608, y = 703}, size = {width = 512, height = 512}}
{origin = {x = 512, y = 703}, size = {width = 512, height = 512}}
{origin = {x = 0, y = 703}, size = {width = 512, height = 512}}
--
Steve Mills
office: 952-818-3871
home: 952-401-6255
cell: 612-803-6157
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