Re: NSSliderCell Drawing Issue
Re: NSSliderCell Drawing Issue
- Subject: Re: NSSliderCell Drawing Issue
- From: David Borland <email@hidden>
- Date: Sun, 9 Oct 2005 12:14:06 -0700
I've seen that suggestion in the archives, but I haven't figured out
what I'm supposed to do with sizeToFit.
I tried changing the method so that it just wrote out to the console
when it gets called and what the frame is at that time, and it wasn't
being called automatically, and when I called it explicitly, the
frame was what it was supposed to be.
I should mention that in Interface Builder I'm putting a custom view
of the size I want, and then setting the custom class to be subclass,
in case that changes anything.
David Borland
Electrical Geodesics, Inc
On Oct 8, 2005, at 9:10 AM, Ryan Stevens wrote:
NSControl, sizeToFit...
"Changes the width and the height of the receiver’s frame so they
are the minimum needed to contain its cell."
On Oct 7, 2005, at 5:19 PM, David Borland wrote:
I'm trying to create a control that is a ruler that has a
transparent control over it that shows what part of the ruler is
actively being displayed in a view.
I've tried to create this controller by subclassing both NSSlider
and NSScroller, and I can't get either of them to work. The
problem in both cases appears to be because I want the control to
be larger then a NSRegularControlSize control.
For the NSSlider attempt, I have these two methods in the
RulerSliderCell class:
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
[self drawRuler:cellFrame];
cellFrame.origin.y += cellFrame.size.height - 20;
cellFrame.size.height = 20;
[super drawWithFrame:cellFrame inView:controlView];
} /* drawWithFrame:inView: */
This draws my ruler and the slider grove at the bottom of the ruler.
-(void)drawKnob:(NSRect )knobRect
{
[[NSColor redColor] set];
[NSBezierPath fillRect:knobRect];
float height = knobRect.origin.y;
knobRect.origin.y = 0;
knobRect.size.height = height;
[NSBezierPath strokeRect:knobRect];
}
And this draws a red rectangle in the grove, and a hollow
rectangle over the ruler when I start up the test application.
The problem is that when I move the knob, the the rectangle in the
grove moves, but the hollow rectangle stays put. It only gets
drawn when resize the view or click out of the app.
In my NSScroller attempt, I have similar methods, and similar
results. The extra thing that goes wrong with the NSScroller
subclass is that it only responds to clicks in the area of that
control that is NSRegularControlSize.
Any clues on how to fix either of my problems?
David Borland
Electrical Geodesics, Inc
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