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因爲,我需要一些先進的菜單欄項目,我使用自定義NSView子類作爲menubaritem的視圖。NSView drawRect和視網膜圖像
在drawrect中,我繪製了一些簡單的nsimage,它可以正常顯示,但在視網膜顯示器上它可以加載較小的圖像(是的,我有@ 2個圖形)。
代碼:
- (void)drawRect:(NSRect)dirtyRect
{
[self.statusItem drawStatusBarBackgroundInRect:dirtyRect withHighlight:self.isHighlighted];
[icon scalesWhenResized];
icon = self.isHighlighted ? self.alternateImage : [images objectAtIndex:index];
NSSize iconSize = [icon size];
NSRect bounds = self.bounds;
CGFloat iconX = roundf((NSWidth(bounds) - iconSize.width)/2);
CGFloat iconY = roundf((NSHeight(bounds) - iconSize.height)/2);
NSPoint iconPoint = NSMakePoint(iconX, iconY);
[icon drawAtPoint:iconPoint fromRect:bounds operation:NSCompositeSourceOver fraction:1];
}
我用石英調試和真實的Retina MacBook筆記本進行了測試,一切都除了在菜單欄這個小圖像細膩。
更新:
self.images = [NSArray arrayWithObjects:[NSImage imageNamed:@"1.png"],[NSImage imageNamed:@"2.png"],[NSImage imageNamed:@"3.png"],[NSImage imageNamed:@"4.png"],[NSImage imageNamed:@"5.png"],[NSImage imageNamed:@"6.png"],[NSImage imageNamed:@"7.png"],[NSImage imageNamed:@"8.png"],[NSImage imageNamed:@"9.png"],[NSImage imageNamed:@"10.png"],[NSImage imageNamed:@"11.png"],[NSImage imageNamed:@"12.png"],[NSImage imageNamed:@"13.png"],[NSImage imageNamed:@"14.png"],[NSImage imageNamed:@"15.png"],[NSImage imageNamed:@"16.png"],[NSImage imageNamed:@"17.png"],[NSImage imageNamed:@"18.png"],[NSImage imageNamed:@"19.png"],[NSImage imageNamed:@"20.png"],[NSImage imageNamed:@"21.png"],[NSImage imageNamed:@"22.png"],[NSImage imageNamed:@"23.png"],[NSImage imageNamed:@"24.png"],[NSImage imageNamed:@"25.png"],[NSImage imageNamed:@"26.png"],
nil];
什麼是'圖像'? – 2013-02-15 01:31:06
Nsarray的nsimage對象,創建寬度imagaNaned方法 – dormitkon 2013-02-15 12:45:07