Files
leanote-ios/Leanote/editor/EditorClasses/HRCgUtil.m
2015-08-21 23:49:41 +08:00

74 lines
3.3 KiB
Objective-C
Executable File

/*-
* Copyright (c) 2011 Ryota Hayashi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#import "HRCgUtil.h"
void HRSetRoundedRectanglePath(CGContextRef context,const CGRect rect,CGFloat radius){
CGFloat lx = CGRectGetMinX(rect);
CGFloat cx = CGRectGetMidX(rect);
CGFloat rx = CGRectGetMaxX(rect);
CGFloat by = CGRectGetMinY(rect);
CGFloat cy = CGRectGetMidY(rect);
CGFloat ty = CGRectGetMaxY(rect);
CGContextMoveToPoint(context, lx, cy);
CGContextAddArcToPoint(context, lx, by, cx, by, radius);
CGContextAddArcToPoint(context, rx, by, rx, cy, radius);
CGContextAddArcToPoint(context, rx, ty, cx, ty, radius);
CGContextAddArcToPoint(context, lx, ty, lx, cy, radius);
CGContextClosePath(context);
}
void HRDrawSquareColorBatch(CGContextRef context,CGPoint position,HRRGBColor* color,float size){
float cx = position.x;
float cy = position.y;
float rRize = size;
float backRSize = rRize + 3.0f;
float shadowRSize = backRSize + 3.0f;
CGRect rectEllipse = CGRectMake(cx - rRize, cy - rRize, rRize*2, rRize*2);
CGRect rectBackEllipse = CGRectMake(cx - backRSize, cy - backRSize, backRSize*2, backRSize*2);
CGRect rectShadowEllipse = CGRectMake(cx - shadowRSize, cy - shadowRSize, shadowRSize*2, shadowRSize*2);
CGContextSaveGState(context);
HRSetRoundedRectanglePath(context, rectBackEllipse,8.0f);
CGContextClip(context);
HRSetRoundedRectanglePath(context, rectShadowEllipse,8.0f);
CGContextSetLineWidth(context, 5.5f);
[[UIColor whiteColor] set];
CGContextSetShadowWithColor(context, CGSizeMake(0.0f, 1.0f), 4.0f, [UIColor colorWithWhite:0.0f alpha:0.2f].CGColor);
CGContextDrawPath(context, kCGPathStroke);
CGContextRestoreGState(context);
CGContextSaveGState(context);
CGContextSetRGBFillColor(context, color->r, color->g, color->b, 1.0f);
CGContextSetShadowWithColor(context, CGSizeMake(0.0f, 0.5f), 0.5f, [UIColor colorWithWhite:0.0f alpha:0.2f].CGColor);
HRSetRoundedRectanglePath(context, rectEllipse,5.0f);
CGContextDrawPath(context, kCGPathFill);
CGContextRestoreGState(context);
}