1/******************************************************************************
2 * $Id: InfoTabButtonCell.m 13251 2012-03-13 02:52:11Z livings124 $
3 *
4 * Copyright (c) 2007-2012 Transmission authors and contributors
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *****************************************************************************/
24
25#import "InfoTabButtonCell.h"
26
27@implementation InfoTabButtonCell
28
29- (void) awakeFromNib
30{
31    [(NSMatrix *)[self controlView] setToolTip: [self title] forCell: self];
32    
33    NSNotificationCenter * nc = [NSNotificationCenter defaultCenter];
34    [nc addObserver: self selector: @selector(updateControlTint:)
35        name: NSControlTintDidChangeNotification object: NSApp];
36        
37    fSelected = NO;
38    
39    //expects the icon to currently be set as the image
40    fIcon = [[self image] retain];
41    [self setSelectedTab: fSelected];
42}
43
44- (void) dealloc
45{
46    [[NSNotificationCenter defaultCenter] removeObserver: self];
47    
48    [fIcon release];
49    [super dealloc];
50}
51
52- (void) setSelectedTab: (BOOL) selected
53{
54    fSelected = selected;
55    
56    NSInteger row, col;
57    [(NSMatrix *)[self controlView] getRow: &row column: &col ofCell: self];
58    NSRect tabRect = [(NSMatrix *)[self controlView] cellFrameAtRow: row column: col];
59    tabRect.origin.x = 0.0;
60    tabRect.origin.y = 0.0;
61    
62    NSImage * tabImage = [[NSImage alloc] initWithSize: tabRect.size];
63        
64    [tabImage lockFocus];
65    
66    NSGradient * gradient;
67    if (fSelected)
68    {
69        NSColor * lightColor = [NSColor colorForControlTint: [NSColor currentControlTint]];
70        NSColor * darkColor = [lightColor blendedColorWithFraction: 0.2 ofColor: [NSColor blackColor]];
71        gradient = [[NSGradient alloc] initWithStartingColor: lightColor endingColor: darkColor];
72    }
73    else
74    {
75        NSColor * lightColor = [NSColor colorWithCalibratedRed: 245.0/255.0 green: 245.0/255.0 blue: 245.0/255.0 alpha: 1.0];
76        NSColor * darkColor = [NSColor colorWithCalibratedRed: 215.0/255.0 green: 215.0/255.0 blue: 215.0/255.0 alpha: 1.0];
77        gradient = [[NSGradient alloc] initWithStartingColor: lightColor endingColor: darkColor];
78    }
79    
80    [[NSColor grayColor] set];
81    NSRectFill(NSMakeRect(0.0, 0.0, NSWidth(tabRect), 1.0));
82    NSRectFill(NSMakeRect(0.0, NSHeight(tabRect) - 1.0, NSWidth(tabRect), 1.0));
83    NSRectFill(NSMakeRect(NSWidth(tabRect) - 1.0, 1.0, NSWidth(tabRect) - 1.0, NSHeight(tabRect) - 2.0));
84    
85    tabRect = NSMakeRect(0.0, 1.0, NSWidth(tabRect) - 1.0, NSHeight(tabRect) - 2.0);
86    
87    [gradient drawInRect: tabRect angle: 270.0];
88    [gradient release];
89    
90    if (fIcon)
91    {
92        const NSSize iconSize = [fIcon size];
93        
94        const NSRect iconRect = NSMakeRect(NSMinX(tabRect) + floor((NSWidth(tabRect) - iconSize.width) * 0.5),
95                                            NSMinY(tabRect) + floor((NSHeight(tabRect) - iconSize.height) * 0.5),
96                                            iconSize.width, iconSize.height);
97        
98        [fIcon drawInRect: iconRect fromRect: NSZeroRect operation: NSCompositeSourceOver fraction: 1.0];
99    }
100    
101    [tabImage unlockFocus];
102    
103    [self setImage: tabImage];
104    [tabImage release];
105}
106
107- (void) updateControlTint: (NSNotification *) notification
108{
109    if (fSelected)
110        [self setSelectedTab: YES];
111}
112
113@end
114