Dear list, I have an app which has a main split view. In the left panel there is a text editor (NSTextView), in the right panel there is a PDFView. I find that when typing in the text view, the -drawPage: method of the PDFView is called about once every 200ms but only if the PDFView is displaying a (large) graphic. I have this method overridden because I do some additional drawing. The problem is that if the drawing of the PDF page is heavy (due to the complex graphic), then the responsiveness of the text view becomes noticeably poorer. In fact the responsiveness of the whole app is affected.
The strange thing is, that this behaviour is only triggered if I have selected text in the PDF at least once since loading the PDF document. If text has never been selected, then the -drawPage: is called only a couple of times at the beginning or when scrolling (as expected), but not when typing in the text view or doing other non-pdf related actions. Clearing the selected text (by just clicking somewhere on the PDFView) doesn't rectify the problem - it persists until the app is restarted. Can anyone explain to me why the -drawPage: method of PDFView is being called when I'm typing in the text view? I'm pretty sure I'm not calling it anywhere in my app. I've also checked that -setNeedsDisplay: is not being called on the PDFView. Could this be a PDFKit bug? Best wishes, Martin _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
