redraw problem
redraw problem
- Subject: redraw problem
- From: Tony Romano <email@hidden>
- Date: Thu, 29 Jul 2010 13:26:31 -0700
I have a document based Cocoa App and I am trying to understand what is causing these residual lines to happen. Attached is a link to what I am referring to. The solid blue lines are the new lines after they have moved. The greyish lines are what's being left behind. http://dl.dropbox.com/u/5614061/Screen shot 2010-07-29 at 1.08.36 PM.png. Notice they look like borders from the old lines.
The Class structure is(as seen by FScript):
NSThemeFrame
NSView (ContentView)
MyView
I am setting the ContentView's window to setBackgroundColor: clearColor and setOpaque:NO. And in the .png, the opacity is 0.0. If I set the opacity to 1.0, the greyish lines are hidden but adjusting to 0.0 will cause them to be revealed(the same one. i.e. I only change the opacity and not move the lines). I am getting the drawRect calls due to me calling setNeedsDisplay:YES during observing the keypath changes to grid values.
Not sure what other information is needed. Please let me know,
Thanks in advance,
-Tony
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