iLifeControls/NFHUDSliderCell.m

   1 //
   2 //  NFHUDSliderCell.m
   3 //  iLife HUD Slider
   4 //
   5 //  Created by Sean Patrick O'Brien on 9/23/06.
   6 //  Copyright 2006 Sean Patrick O'Brien. All rights reserved.
   7 //
   8
   9 #import "NFHUDSliderCell.h"
  10 #import "NSImage+FrameworkImage.h"
  11
  12 @implementation NFHUDSliderCell
  13
  14 - (void)drawBarInside:(NSRect)cellFrame flipped:(BOOL)flipped
  15 {
  16         NSImage *leftImage = [NSImage frameworkImageNamed:@"HUDSliderTrackLeft.tiff"];
  17         NSImage *fillImage = [NSImage frameworkImageNamed:@"HUDSliderTrackFill.tiff"];
  18         NSImage *rightImage = [NSImage frameworkImageNamed:@"HUDSliderTrackRight.tiff"];
  19
  20         NSSize size = [leftImage size];
  21         float addX = size.width / 2.0;
  22         float y = NSMaxY(cellFrame) - (cellFrame.size.height-size.height)/2.0 - 1;
  23         float x = cellFrame.origin.x+addX;
  24         float fillX = x + size.width;
  25         float fillWidth = cellFrame.size.width - size.width - addX;
  26
  27         [leftImage compositeToPoint:NSMakePoint(x, y) operation:NSCompositeSourceOver];
  28
  29         size = [rightImage size];
  30         addX = size.width / 2.0;
  31         x = NSMaxX(cellFrame) - size.width - addX;
  32         fillWidth -= size.width+addX;
  33
  34         [rightImage compositeToPoint:NSMakePoint(x, y) operation:NSCompositeSourceOver];
  35
  36         [fillImage setScalesWhenResized:YES];
  37         [fillImage setSize:NSMakeSize(fillWidth, [fillImage size].height)];
  38         [fillImage compositeToPoint:NSMakePoint(fillX, y) operation:NSCompositeSourceOver];
  39 }
  40
  41 - (void)drawKnob:(NSRect)rect
  42 {
  43         NSImage *knob;
  44
  45         if([self numberOfTickMarks] == 0)
  46                 knob = [NSImage frameworkImageNamed:@"HUDSliderKnobRound.tiff"];
  47         else
  48                 knob = [NSImage frameworkImageNamed:@"HUDSliderKnob.tiff"];
  49
  50         float x = rect.origin.x + (rect.size.width - [knob size].width) / 2;
  51         float y = NSMaxY(rect) - (rect.size.height - [knob size].height) / 2 ;
  52
  53         [knob compositeToPoint:NSMakePoint(x, y) operation:NSCompositeSourceOver];
  54 }
  55
  56 -(NSRect)knobRectFlipped:(BOOL)flipped
  57 {
  58         NSRect rect = [super knobRectFlipped:flipped];
  59         if([self numberOfTickMarks] > 0){
  60                 rect.size.height+=2;
  61                 return NSOffsetRect(rect, 0, flipped ? 2 : -2);
  62                 }
  63         return rect;
  64 }
  65
  66 - (BOOL)_usesCustomTrackImage
  67 {
  68         return YES;
  69 }
  70
  71 @end