mirror of
https://github.com/leanote/leanote-ios.git
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103 lines
3.9 KiB
Objective-C
Executable File
103 lines
3.9 KiB
Objective-C
Executable File
/*-
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* Copyright (c) 2011 Ryota Hayashi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#import "HRBrightnessCursor.h"
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#import "HRCgUtil.h"
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@implementation HRBrightnessCursor
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- (id)initWithPoint:(CGPoint)point
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{
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CGSize size = CGSizeMake(18.0f, 40.0f);
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CGRect frame = CGRectMake(point.x - size.width/2.0f, point.y - size.height/2.0f, size.width, size.height);
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self = [super initWithFrame:frame];
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if (self) {
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[self setBackgroundColor:[UIColor clearColor]];
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[self setUserInteractionEnabled:FALSE];
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}
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return self;
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}
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- (void)drawRect:(CGRect)rect
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{
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CGContextRef context = UIGraphicsGetCurrentContext();
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CGContextSaveGState(context);
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HRSetRoundedRectanglePath(context, CGRectMake(2.0f, 13.0f, 14.0f, 14.0f), 2.0f);
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[[UIColor colorWithWhite:0.98f alpha:1.0f] set];
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CGContextSetLineWidth(context, 2.0f);
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CGContextSetShadowWithColor(context, CGSizeMake(0.0f, 1.0f), 2.0f, [UIColor colorWithWhite:0.0f alpha:0.3f].CGColor);
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CGContextDrawPath(context, kCGPathFillStroke);
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CGContextRestoreGState(context);
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CGContextSaveGState(context);
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HRSetRoundedRectanglePath(context, CGRectMake(2.0f, 13.0f, 14.0f, 14.0f), 2.0f);
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CGContextClip(context);
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float top_color = 0.9f;
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float bottom_color = 0.98f;
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float alpha = 1.0f;
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CGFloat gradient_color[] = {
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top_color ,top_color ,top_color ,alpha,
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bottom_color ,bottom_color ,bottom_color ,alpha
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};
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CGGradientRef gradient;
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CGColorSpaceRef colorSpace;
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size_t num_locations = 2;
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CGFloat locations[2] = { 0.0, 1.0 };
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colorSpace = CGColorSpaceCreateDeviceRGB();
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gradient = CGGradientCreateWithColorComponents(colorSpace, gradient_color,
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locations, num_locations);
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CGPoint startPoint = CGPointMake(self.frame.size.width/2, 0.0);
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CGPoint endPoint = CGPointMake(self.frame.size.width/2, self.frame.size.height);
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CGContextDrawLinearGradient(context, gradient, startPoint, endPoint, 0);
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// GradientとColorSpaceを開放する
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CGColorSpaceRelease(colorSpace);
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CGGradientRelease(gradient);
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CGContextRestoreGState(context);
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CGContextSaveGState(context);
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[[UIColor colorWithWhite:1.0f alpha:1.0f] setStroke];
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CGContextMoveToPoint(context, 6.0f, 17.0f);
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CGContextAddLineToPoint(context, 6.0f, 24.0f);
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CGContextMoveToPoint(context, 9.0f, 17.0f);
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CGContextAddLineToPoint(context, 9.0f, 24.0f);
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CGContextMoveToPoint(context, 12.0f, 17.0f);
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CGContextAddLineToPoint(context, 12.0f, 24.0f);
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CGContextDrawPath(context, kCGPathStroke);
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CGContextRestoreGState(context);
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}
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@end
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