On Nov 13, 2009, at 6:35 AM, [email protected] wrote:
> I have a subclassed NSTextFieldCell to create a cell that draws outside of
> it's frame.
All the logic in tableview redraws things based on -frameOfCellAtColumn:row:.
Things will frequently not get redrawn if you draw outside of those bounds.
I recommend using a "full width" cell. See the AppKit release notes for 10.5
corbin
> 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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