78 lines
3.8 KiB
Mathematica
78 lines
3.8 KiB
Mathematica
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// MGMAddons.m
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// Exhaust
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//
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// Created by Mr. Gecko on 2/8/11.
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// Copyright (c) 2011 Mr. Gecko's Media (James Coleman). All rights reserved. http://mrgeckosmedia.com/
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//
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#import "MGMAddons.h"
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#import <QuartzCore/QuartzCore.h>
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@implementation NSBezierPath (MGMAddons)
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+ (NSBezierPath *)pathWithRect:(NSRect)theRect radiusX:(float)theRadiusX radiusY:(float)theRadiusY {
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NSBezierPath *path = [NSBezierPath bezierPath];
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float maxRadiusX = theRect.size.width / 2.0;
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float maxRadiusY = theRect.size.height / 2.0;
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theRadiusX = (theRadiusX<maxRadiusX ? theRadiusX : maxRadiusX);
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theRadiusY = (theRadiusY<maxRadiusY ? theRadiusY : maxRadiusY);
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float ellipse = 0.55228474983079;
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float controlX = theRadiusX * ellipse;
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float controlY = theRadiusY * ellipse;
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NSRect edges = NSInsetRect(theRect, theRadiusX, theRadiusY);
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[path moveToPoint:NSMakePoint(edges.origin.x, theRect.origin.y)];
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// top right corner
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[path lineToPoint:NSMakePoint(NSMaxX(edges), theRect.origin.y)];
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[path curveToPoint:NSMakePoint(NSMaxX(theRect), edges.origin.y) controlPoint1:NSMakePoint(NSMaxX(edges) + controlX, theRect.origin.y) controlPoint2:NSMakePoint(NSMaxX(theRect), edges.origin.y - controlY)];
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// bottom right corner
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[path lineToPoint:NSMakePoint(NSMaxX(theRect), NSMaxY(edges))];
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[path curveToPoint:NSMakePoint(NSMaxX(edges), NSMaxY(theRect)) controlPoint1:NSMakePoint(NSMaxX(theRect), NSMaxY(edges) + controlY) controlPoint2:NSMakePoint(NSMaxX(edges) + controlX, NSMaxY(theRect))];
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// bottom left corner
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[path lineToPoint:NSMakePoint(edges.origin.x, NSMaxY(theRect))];
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[path curveToPoint:NSMakePoint(theRect.origin.x, NSMaxY(edges)) controlPoint1:NSMakePoint(edges.origin.x - controlX, NSMaxY(theRect)) controlPoint2:NSMakePoint(theRect.origin.x, NSMaxY(edges) + controlY)];
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// top left corner
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[path lineToPoint:NSMakePoint(theRect.origin.x, edges.origin.y)];
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[path curveToPoint:NSMakePoint(edges.origin.x, theRect.origin.y) controlPoint1:NSMakePoint(theRect.origin.x, edges.origin.y - controlY) controlPoint2:NSMakePoint(edges.origin.x - controlX, theRect.origin.y)];
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[path closePath];
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return path;
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}
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- (void)fillGradientFrom:(NSColor *)theStartColor to:(NSColor *)theEndColor {
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CIFilter *filter = [CIFilter filterWithName:@"CILinearGradient"];
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theStartColor = [theStartColor colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
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theEndColor = [theEndColor colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
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if (![[NSGraphicsContext currentContext] isFlipped]) {
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NSColor *start = theStartColor;
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NSColor *end = theEndColor;
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theEndColor = start;
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theStartColor = end;
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}
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CIColor *startColor = [CIColor colorWithRed:[theStartColor redComponent] green:[theStartColor greenComponent] blue:[theStartColor blueComponent] alpha:[theStartColor alphaComponent]];
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CIColor *endColor = [CIColor colorWithRed:[theEndColor redComponent] green:[theEndColor greenComponent] blue:[theEndColor blueComponent] alpha:[theEndColor alphaComponent]];
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[filter setValue:startColor forKey:@"inputColor0"];
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[filter setValue:endColor forKey:@"inputColor1"];
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CIVector *startVector = [CIVector vectorWithX:0.0 Y:0.0];
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[filter setValue:startVector forKey:@"inputPoint0"];
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CIVector *endVector = [CIVector vectorWithX:0.0 Y:[self bounds].size.height];
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[filter setValue:endVector forKey:@"inputPoint1"];
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CIImage *coreimage = [filter valueForKey:@"outputImage"];
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[[NSGraphicsContext currentContext] saveGraphicsState];
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[self setClip];
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CIContext *context = [[NSGraphicsContext currentContext] CIContext];
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[context drawImage:coreimage atPoint:CGPointMake([self bounds].origin.x, [self bounds].origin.y) fromRect:CGRectMake(0.0, 0.0, [self bounds].size.width, [self bounds].size.height)];
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[[NSGraphicsContext currentContext] restoreGraphicsState];
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}
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@end
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