20d9e1028c
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Bart Louwers <bart@emeel.net>
38 lines
1.3 KiB
Objective-C
38 lines
1.3 KiB
Objective-C
#import "MLNCompassCell.h"
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@implementation MLNCompassCell
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- (instancetype)init {
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if (self = [super init]) {
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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self.sliderType = NSCircularSlider;
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#pragma GCC diagnostic pop
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// A tick mark for each cardinal direction.
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self.numberOfTickMarks = 4;
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// This slider goes backwards!
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self.minValue = -360;
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self.maxValue = 0;
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}
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return self;
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}
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- (void)drawKnob:(NSRect)knobRect {
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// Draw a red triangle pointing whichever way the slider is facing.
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NSBezierPath *trianglePath = [NSBezierPath bezierPath];
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[trianglePath moveToPoint:NSMakePoint(NSMinX(knobRect), NSMaxY(knobRect))];
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[trianglePath lineToPoint:NSMakePoint(NSMaxX(knobRect), NSMaxY(knobRect))];
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[trianglePath lineToPoint:NSMakePoint(NSMidX(knobRect), NSMinY(knobRect))];
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[trianglePath closePath];
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NSAffineTransform *transform = [NSAffineTransform transform];
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[transform translateXBy:NSMidX(knobRect) yBy:NSMidY(knobRect)];
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[transform scaleBy:0.8];
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[transform rotateByDegrees:self.doubleValue];
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[transform translateXBy:-NSMidX(knobRect) yBy:-NSMidY(knobRect)];
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[trianglePath transformUsingAffineTransform:transform];
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[[NSColor redColor] setFill];
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[trianglePath fill];
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}
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@end
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