ITTSWBackgroundView.m

   1 #import "ITTSWBackgroundView.h"
   2
   3
   4 #define RADIUS 24.0
   5
   6
   7 @interface ITTSWBackgroundView (Private)
   8 @end
   9
  10
  11 @implementation ITTSWBackgroundView
  12
  13
  14 - (id)initWithFrame:(NSRect)frameRect
  15 {
  16     if ( (self = [super initWithFrame:frameRect]) ) {
  17         _path  = [[NSBezierPath bezierPath] retain];
  18         _color = [[NSColor blueColor] retain];
  19         _mode  = ITTSWBackgroundApple;
  20     }
  21
  22     return self;
  23 }
  24
  25 - (void)drawRect:(NSRect)rect
  26 {
  27     float vh     = NSHeight(rect);
  28     float vw     = NSWidth(rect);
  29     float indent = 0.0;
  30
  31     if ( (_mode == ITTSWBackgroundReadable) || (_mode == ITTSWBackgroundColored) ) {
  32         indent = 2.0;
  33     }
  34
  35     NSPoint pointA = NSMakePoint( ((vw - RADIUS) - indent) , (vh - indent)            );
  36     NSPoint pointB = NSMakePoint( (RADIUS + indent)        , (vh - indent)            );
  37     NSPoint pointD = NSMakePoint( indent                   , (RADIUS + indent)        );
  38     NSPoint pointF = NSMakePoint( ((vw - RADIUS) - indent) , indent                   );
  39     NSPoint pointH = NSMakePoint( (vw - indent)            , ((vh - RADIUS) - indent) );
  40
  41     NSPoint ctrBC  = NSMakePoint( (RADIUS + indent)        , ((vh - RADIUS) - indent) );
  42     NSPoint ctrDE  = NSMakePoint( (RADIUS + indent)        , (RADIUS + indent)        );
  43     NSPoint ctrFG  = NSMakePoint( ((vw - RADIUS) - indent) , (RADIUS + indent)        );
  44     NSPoint ctrHA  = NSMakePoint( ((vw - RADIUS) - indent) , ((vh - RADIUS) - indent) );
  45
  46     /*
  47      *        D                    E
  48      *      +------------------------+
  49      *    C | * ctrCD        ctrEF * | F
  50      *      |                        |
  51      *    B | * ctrAB        ctrGH * | G
  52      *      +------------------------+
  53      *        A                    H
  54      */
  55
  56     [_path removeAllPoints];
  57
  58     [_path moveToPoint:pointA];                         //  first point
  59     [_path lineToPoint:pointB];                         //  top line
  60     [_path appendBezierPathWithArcWithCenter:ctrBC      //  top-left curve
  61                                       radius:RADIUS
  62                                   startAngle:90.0
  63                                     endAngle:180.0];
  64     [_path lineToPoint:pointD];                         //  left line
  65     [_path appendBezierPathWithArcWithCenter:ctrDE      //  bottom-left curve
  66                                       radius:RADIUS
  67                                   startAngle:180.0
  68                                     endAngle:270.0];
  69     [_path lineToPoint:pointF];                         //  top line
  70     [_path appendBezierPathWithArcWithCenter:ctrFG      //  top-right curve
  71                                       radius:RADIUS
  72                                   startAngle:270.0
  73                                     endAngle:0.0];
  74     [_path lineToPoint:pointH];                         //  right line
  75     [_path appendBezierPathWithArcWithCenter:ctrHA      //  bottom-right curve
  76                                       radius:RADIUS
  77                                   startAngle:0.0
  78                                     endAngle:90.0];
  79
  80     if ( _mode == ITTSWBackgroundApple ) {
  81         [[NSColor colorWithCalibratedWhite:0.0 alpha:0.15] set];
  82     } else if ( _mode == ITTSWBackgroundReadable ) {
  83         [[NSColor colorWithCalibratedWhite:0.15 alpha:0.70] set];
  84     } else if ( _mode == ITTSWBackgroundColored ) {
  85         [_color set];
  86     }
  87
  88     [_path fill];
  89
  90     if ( (_mode == ITTSWBackgroundReadable) || (_mode == ITTSWBackgroundColored) ) {
  91         [[NSColor colorWithCalibratedWhite:0.90 alpha:1.00] set];
  92         [_path setLineWidth:3.0];
  93         [_path stroke];
  94     }
  95 }
  96
  97 - (BOOL)isOpaque
  98 {
  99     return NO;
 100 }
 101
 102 - (ITTSWBackgroundMode)backgroundMode
 103 {
 104     return _mode;
 105 }
 106
 107 - (void)setBackgroundMode:(ITTSWBackgroundMode)newMode
 108 {
 109     _mode = newMode;
 110     [self setNeedsDisplay:YES];
 111 }
 112
 113 - (NSColor *)backgroundColor
 114 {
 115     return _color;
 116 }
 117
 118 - (void)setBackgroundColor:(NSColor *)newColor
 119 {
 120     [_color autorelease];
 121     _color = [newColor copy];
 122     [self setNeedsDisplay:YES];
 123 }
 124
 125
 126 @end