Re: nstextfieldcell backgroundcolor do not change as expected

[reuss]

No one could help me?

On Tue, 10 Feb 2004 03:23:38 +0100, reuss wrote:

> I am wondering why all selected cells become white one by one and why
> the previous does not become gray thought it should - if I did not make
> a mistake.The way they become gray is quite rhapsodic and imprevisible
> and ununderstandable for me.
> There is a mistake in my code? Where? And what? (ok, it is not too
> elegant, but i think it should work). please help andras
> 
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> #include <AppKit/AppKit.h>
> #include <Foundation/Foundation.h>
> 
> @interface CalViewer : NSControl
> {
> id matrix;
> id previouscell;
> }
> - (id) initWithFrame: (NSRect) aFrame; @end
> 
> 
> #include "CalViewer.h"
> 
> @implementation CalViewer
> - (id) initWithFrame: (NSRect) aFrame {
>       self = [super initWithFrame: aFrame]; int i, j, k; k = 0;
> 
> 
> matrix = [[NSMatrix alloc] initWithFrame: NSMakeRect(0,0,25,25)]; id
> protocell = [[NSTextFieldCell alloc] init]; [protocell
> setDrawsBackground: YES];
> [protocell setBackgroundColor: [NSColor windowBackgroundColor]];
> [protocell setAction: @selector(changeBackground:)]; [protocell
> setTarget: matrix];
> [matrix setPrototype: protocell];
> [matrix setIntercellSpacing: NSMakeSize(0,0)]; [matrix insertRow: 3];
> [matrix insertColumn: 3];
> 
> 
> for (i=0; i< 4; i++)
>         for(j=0; j<4; j++)
>                 {
>               if (k == 0)
>                       [[matrix cellAtRow: i column: j] setEnabled: NO];
>               else
>               {
>                 [[matrix cellAtRow: i column: j] setIntValue: k];
>               [[matrix cellAtRow: i column: j] setFont: [NSFont
>               boldSystemFontOfSize: 12]]; [[matrix cellAtRow: i column: j]
>               setAlignment: NSCenterTextAlignment]; }
>                 k++;
>                 }
> previouscell = [matrix cellAtRow: 0 column: 2]; [previouscell
> setBackgroundColor: [NSColor whiteColor]]; [matrix sizeToCells];
> 
>       [self addSubview: matrix];
>       return self;
> }
> 
> - (void) changeBackground: (id) sender {
>       [previouscell setBackgroundColor: [NSColor windowBackgroundColor]];
>       [[matrix selectedCell]  setBackgroundColor: [NSColor whiteColor]];
>       previouscell = [matrix selectedCell];
> }
> 
> @end