I have a subclassed NSTextFieldCell to create a cell that draws outside of it's
frame.
This is to enable NSTableView rows to have one line of text that runs beneath
several other cells.
Bindings are utilised.
This works fine except, curiously, when an operation is undone.
In this case the cell only redraws within its initial cellFrame.
In other words, it doesn't redraw within the extended area as detailed in -
(void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
detailed below.
If I click the table row redrawing occurs correctly.
Tracing shows that the bindings are firing okay and that my code path is the
same for do/undo.
All cellFrame rects look as expected.
Is it to be presumed that there is different code path within NSCell following
an undo?
- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
if (self.twoLine) {
if (self.displayOnSecondLine) {
// draw text for line 2
cellFrame.size.height /= 2;
cellFrame.origin.y += cellFrame.size.height;
// draw to edge of control ?
if (self.extendCell) {
cellFrame.size.width = [controlView
frame].size.width - cellFrame.origin.x;
}
} else {
// draw only on first line
cellFrame.size.height /= 2;
}
}
[super drawInteriorWithFrame:cellFrame inView:controlView];
}
Regards
Jonathan Mitchell
Developer
http://www.mugginsoft.com
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