transmission/macosx/InfoTabButtonCell.m

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/******************************************************************************
* $Id$
*
* Copyright (c) 2007-2011 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#import "InfoTabButtonCell.h"
@implementation InfoTabButtonCell
- (void) awakeFromNib
{
[(NSMatrix *)[self controlView] setToolTip: [self title] forCell: self];
NSNotificationCenter * nc = [NSNotificationCenter defaultCenter];
[nc addObserver: self selector: @selector(updateControlTint:)
name: NSControlTintDidChangeNotification object: NSApp];
fSelected = NO;
//expects the icon to currently be set as the image
fIcon = [[self image] retain];
[self setSelectedTab: fSelected];
}
- (void) dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver: self];
[fIcon release];
[super dealloc];
}
- (void) setSelectedTab: (BOOL) selected
{
fSelected = selected;
NSInteger row, col;
[(NSMatrix *)[self controlView] getRow: &row column: &col ofCell: self];
NSRect tabRect = [(NSMatrix *)[self controlView] cellFrameAtRow: row column: col];
tabRect.origin.x = 0.0;
tabRect.origin.y = 0.0;
NSImage * tabImage = [[NSImage alloc] initWithSize: tabRect.size];
[tabImage lockFocus];
NSGradient * gradient;
if (fSelected)
{
NSColor * lightColor = [NSColor colorForControlTint: [NSColor currentControlTint]];
NSColor * darkColor = [lightColor blendedColorWithFraction: 0.2 ofColor: [NSColor blackColor]];
gradient = [[NSGradient alloc] initWithStartingColor: lightColor endingColor: darkColor];
}
else
{
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NSColor * lightColor = [NSColor colorWithCalibratedRed: 245.0/255.0 green: 245.0/255.0 blue: 245.0/255.0 alpha: 1.0];
NSColor * darkColor = [NSColor colorWithCalibratedRed: 215.0/255.0 green: 215.0/255.0 blue: 215.0/255.0 alpha: 1.0];
gradient = [[NSGradient alloc] initWithStartingColor: lightColor endingColor: darkColor];
}
[[NSColor grayColor] set];
NSRectFill(NSMakeRect(0.0, 0.0, NSWidth(tabRect), 1.0));
NSRectFill(NSMakeRect(0.0, NSHeight(tabRect) - 1.0, NSWidth(tabRect), 1.0));
NSRectFill(NSMakeRect(NSWidth(tabRect) - 1.0, 1.0, NSWidth(tabRect) - 1.0, NSHeight(tabRect) - 2.0));
tabRect = NSMakeRect(0.0, 1.0, NSWidth(tabRect) - 1.0, NSHeight(tabRect) - 2.0);
[gradient drawInRect: tabRect angle: 270.0];
[gradient release];
if (fIcon)
{
const NSSize iconSize = [fIcon size];
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const NSRect iconRect = NSMakeRect(NSMinX(tabRect) + floor((NSWidth(tabRect) - iconSize.width) * 0.5),
NSMinY(tabRect) + floor((NSHeight(tabRect) - iconSize.height) * 0.5),
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iconSize.width, iconSize.height);
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[fIcon drawInRect: iconRect fromRect: NSZeroRect operation: NSCompositeSourceOver fraction: 1.0];
}
[tabImage unlockFocus];
[self setImage: tabImage];
[tabImage release];
}
- (void) updateControlTint: (NSNotification *) notification
{
if (fSelected)
[self setSelectedTab: YES];
}
@end