NSTextField stable text while toggling bezel
NSTextField stable text while toggling bezel
- Subject: NSTextField stable text while toggling bezel
- From: Sebastian Morsch <email@hidden>
- Date: Sat, 17 Jun 2006 10:27:05 +0200
Hi,
I have an NSTextField that will be toggled between being bezeld or
not at runtime. The problem is, that the text will not stay in place
when I change the border/bezel. I solved this with a NSTextFieldCell
subclass:
@interface SMStableTextFieldCell : NSTextFieldCell {
NSRect cellRectOffset;
}
@ end
@implementation SMStableTextFieldCell
- (void)setBordered:(BOOL)flag
{
[super setBordered:flag];
if (flag) {
// 'misuse' NSRect to store the border-specific offstes for origin
and size
// by comparing to a zero-rect
cellRectOffset = [self titleRectForBounds:NSMakeRect(0.0, 0.0, 0.0,
0.0)];
}
}
- (void)setBezeled:(BOOL)flag
{
[super setBezeled:flag];
if (flag) {
// 'misuse' NSRect to store the bezel-specific offsets for origin
and size
// by comparing to a zero-rect
cellRectOffset = [self titleRectForBounds:NSMakeRect(0.0, 0.0, 0.0,
0.0)];
}
}
- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)
controlView
{
if (([self isBordered] == NO) && ([self isBezeled] == NO)) {
cellFrame.origin.x += borderedOrBezeledCellPadding.origin.x;
cellFrame.origin.y += borderedOrBezeledCellPadding.origin.y;
cellFrame.size.width += borderedOrBezeledCellPadding.size.width;
cellFrame.size.height += borderedOrBezeledCellPadding.size.height;
}
[super drawInteriorWithFrame:cellFrame inView:controlView];
}
@end
This works quite nicely, but when the textfield is borderless (and
the cell's rect is changed as in the above code) the textfield's text
still jumps back when I *select* it (as in setSelectable:YES)!
That gave me the impression, that maybe my code is doing things not
the right way in general. Should I maybe implement the change of the
cell's rect in any other method to avoid this? Or did I maybe forget
about some helper object that needs to be shifted too (field editor)?
Also, it would be more convenient to implement this in the
NSTextField class itself, but I couldn't make it work (at least not
without changing the view's frame, and I don't want that). However, I
*think* OO-stylewise it should be implemented in the cell anyway.
I found old posts about this issue, but they didn't really lead
somewhere. I'm sure, some of you guys had that very same problem before.
Thank you for reading!
Sebastian
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