Why do all subcell buttons highlite for custom cell in NSTableView?
Why do all subcell buttons highlite for custom cell in NSTableView?
- Subject: Why do all subcell buttons highlite for custom cell in NSTableView?
- From: Guy Umbright <email@hidden>
- Date: Tue, 10 Jan 2006 10:34:38 -0600
I have a custom cell (CustomCell.m source below) that consists of two
subcells, a button end edit cell.
When used in an NSTableView with multiple rows, when I press the
button, ALL instances of the button
subcell hilight, rather than just the one I am pressing.
I suppose I am missing something here. I know that the same cell
instance is used for all the cells
in the NSTable so I guess that is why the all highlight, but what
then can I do to prevent this?
Guy
Code follows:
========================================================================
==
//
// CustomCell.m
@implementation CustomCell
///////////////////////////////////
//
///////////////////////////////////
- (id) init
{
return [self initWithString:@""];
}
///////////////////////////////////
//
///////////////////////////////////
- (id) initImageCell:(NSImage*) image
{
return [self initWithString:@""];
}
///////////////////////////////////
//
///////////////////////////////////
- (id) initTextCell:(NSString*) string
{
return [self initWithString:string];
}
///////////////////////////////////
//
///////////////////////////////////
- (id) initWithString:(NSString*) string
{
if (self = [super init])
{
m_buttonCell = [[NSButtonCell alloc] initImageCell: nil];
[m_buttonCell setBezelStyle:NSRegularSquareBezelStyle];
[m_buttonCell setButtonType:NSMomentaryPushInButton];
[m_buttonCell setControlSize:NSSmallControlSize];
m_editCell = [[NSTextFieldCell alloc] initTextCell:string];
[m_editCell setEditable:YES];
[m_editCell setDrawsBackground:NO];
[m_editCell setWraps: YES];
}
return self;
}
///////////////////////////////////
//
///////////////////////////////////
- (void) _CalcSubCellFrames:(NSRect) frame
{
int n;
m_buttonFrame = frame;
n = frame.size.height - 1;
m_buttonFrame.size.width = n;
m_buttonFrame.size.height = n;
m_buttonFrame.origin.x += (frame.size.width -
(m_buttonFrame.size.width + 2));
//m_buttonFrame.origin.y = (frame.size.height -
m_buttonFrame.size.height) / 2;
m_editFrame = frame;
m_editFrame.size.width -= m_buttonFrame.size.width;
}
///////////////////////////////////
//
///////////////////////////////////
- (void)resetCursorRect:(NSRect)cellFrame inView:(NSView *)controlView
{
[super resetCursorRect:m_editFrame inView:controlView];
}
///////////////////////////////////
//
///////////////////////////////////
- (void) drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)
controlView
{
[self _CalcSubCellFrames:cellFrame];
[m_editCell drawWithFrame:m_editFrame inView:controlView];
[m_buttonCell drawWithFrame:m_buttonFrame inView:controlView];
}
///////////////////////////////////
//
///////////////////////////////////
- (BOOL)trackMouse:(NSEvent *)theEvent
inRect:(NSRect)cellFrame
ofView:(NSView *)controlView
untilMouseUp:(BOOL)untilMouseUp
{
[self _CalcSubCellFrames:cellFrame];
return [super trackMouse: theEvent
inRect: cellFrame
ofView: controlView
untilMouseUp:untilMouseUp];
}
- (BOOL) startTrackingAt: (NSPoint) startPoint inView:(NSView*)
controlView
{
if (NSMouseInRect(startPoint, m_buttonFrame,NO) == YES)
{
[m_buttonCell highlight:YES withFrame:m_buttonFrame
inView:controlView];
[self _RunPanel];
[m_buttonCell highlight:NO withFrame:m_buttonFrame
inView:controlView];
}
else if (NSMouseInRect(startPoint, m_editFrame,NO) == YES)
{
NSText* editor = [[controlView window] fieldEditor:YES
forObject:self];
NSText* object;
int l;
l = [[m_editCell stringValue] length];
object = [m_editCell setUpFieldEditorAttributes:editor];
[m_editCell selectWithFrame: m_editFrame
inView:controlView
editor: object
delegate: self
start:0
length: l];
}
return NO;
}
///////////////////////////////////
//
///////////////////////////////////
- (NSString*) stringValue
{
return [m_editCell stringValue];
}
///////////////////////////////////
//
///////////////////////////////////
- (void) setStringValue:(NSString*) string
{
[m_editCell setStringValue:string];
}
///////////////////////////////////
//
///////////////////////////////////
- (void) _ButtonPressed:(id) sender
{
[self _RunPanel];
}
///////////////////////////////////
//
///////////////////////////////////
- (void) _RunPanel
{
NSOpenPanel* panel = [NSOpenPanel openPanel];
BOOL isDir,result;
NSString* s = [m_editCell stringValue];
[panel setCanChooseDirectories:YES];
[panel setCanChooseFiles:NO];
[panel setAllowsMultipleSelection:NO];
//???check for tilde to expand first?
if ([s length])
{
result = [[NSFileManager defaultManager] fileExistsAtPath:s
isDirectory:&isDir];
}
[panel setLevel:NSModalPanelWindowLevel];
//id del = [panel delegate];
//NSLog(@"del=%@",del);
//[panel setDelegate: self];
int panelResult = [panel runModal];
if (panelResult == NSFileHandlingPanelOKButton)
{
NSArray* dir = [panel filenames];
[m_editCell setStringValue:[dir objectAtIndex:0]];
//[self setToolTip:[dir objectAtIndex:0]];
//NSLog([m_editCell stringValue]);
//NSLog(dir);
}
}
///////////////////////////////
//
///////////////////////////////
- (id) objectValue
{
return nil;
}
///////////////////////////////
//
///////////////////////////////
- (void) setObjectValue:(id) obj;
{
[self setStringValue:obj];
}
///////////////////////////////
//
///////////////////////////////
- (void) windowDidExpose:(NSNotification*) aNotification
{
NSLog(@"dummy");
}
@end
=================================
code from window containing the NSTableView
- (void) awakeFromNib
{
NSArray* cols;
CustomCell* cell2 = [[[CustomCell alloc] init] retain];
cols = [o_table tableColumns];
[[cols objectAtIndex:1] setDataCell: cell2];
}
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