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NSMatrix selectedRow, selectedColumn
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NSMatrix selectedRow, selectedColumn


  • Subject: NSMatrix selectedRow, selectedColumn
  • From: email@hidden
  • Date: Sat, 21 Aug 2010 11:19:31 -0600

Below is the implementation of an NSMatrix subclass. What I do not understand is the NSLog output from -mouseDown.
No matter which cell I click I always get the following, i.e row and column are always -1.


2010-08-21 11:16:48.705 Customize It[965:813] mouse down
2010-08-21 11:16:48.706 Customize It[965:813] r -1 c -1

What fundamental concept am I missing?

-koko

@implementation FramesMatrix

/* initWithFrame */
- (id) initWithFrame:(NSRect)frameRect {

id aClass = [FramesCell class];
return [super initWithFrame:frameRect mode:NSRadioModeMatrix cellClass:aClass numberOfRows:1 numberOfColumns:1];
}

- (void)awakeFromNib {


	NSSize cellSize;
	cellSize.width = cellSize.height = 160;
	[self setCellSize:cellSize];
	NSSize spacing = NSSizeFromString(@"{8,16}");
	[self setIntercellSpacing:spacing];
	[self setDrawsBackground:YES];
	[self setBackgroundColor:[NSColor whiteColor]];
	[self setAutoscroll:YES];
	NSScrollView* sv = [self enclosingScrollView];
	[sv setDrawsBackground:YES];
	[sv setBackgroundColor:[NSColor whiteColor]];
}

- (void)reloadMatrix:(int)itemCnt {

	NSScrollView* sv = [self enclosingScrollView];

	NSRect svf = [sv frame];
	NSRect sr = [self frame];

	int cols = sr.size.width / 160;
	int rows = (itemCnt / cols) +1;

	sr.size.height = (rows * 176);
	[self setFrame:sr];

	[self renewRows:rows columns:cols];

	[self setNeedsDisplay:YES];
}

- (bool)preservesContentDuringLiveResize { return YES; }

- (void)mouseDown:(NSEvent *)theEvent {


NSLog(@"r %d c %d", [self selectedRow], [self selectedColumn]); }

@end

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