Re: Custom control with 4 vertical sliders
Re: Custom control with 4 vertical sliders
- Subject: Re: Custom control with 4 vertical sliders
- From: Steve Mills <email@hidden>
- Date: Fri, 15 Feb 2013 14:30:03 -0600
On Feb 15, 2013, at 13:35:38, Steve Mills <email@hidden> wrote:
> What's the easiest way to create a custom control that contains a matrix of 4 custom vertical sliders, like a mini graphic EQ? The sliders will not draw the slot, only the knob. First I started with a subclass of NSMatrix and a subclass of NSCell. No matter what I've tried, the cells always end up drawing at the wrong size, as if they were the cell for a simple text matrix, about 100 pixels wide and the height of a regular size text label. I create it thusly:
>
> MyMatrix* blView = [[MyMatrix alloc] initWithFrame:NSMakeRect(100, 100, 200, 80) mode:NSTrackModeMatrix cellClass:[MyCell class] numberOfRows:1 numberOfColumns:4];
>
> I've tried overriding all sorts of methods in the 2 subclasses; cellSize, cellFrameAtRow:column, even returning a cellSize of 10000,10000 as suggested in the docs for cells that aren't text or image cells.
Addendum:
If any of the sliders is dragged past the top of bottom of the containing control, the containing control's bounds will be expanded live in that direction, thereby keeping the mouse within the containing control. I'm starting to think that doing with this a matrix of cells won't be the best way to do this, but rather just create a custom control and tracks the 4 "sliders" internally. Thoughts?
--
Steve Mills
office: 952-818-3871
home: 952-401-6255
cell: 612-803-6157
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