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@dnnta
Created Jul 13, 2012
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graphic_util.h
/*
* graphic_util.h
* radikker
*
* Created by saiten on 09/11/26.
* Copyright 2009 __MyCompanyName__. All rights reserved.
*
*/
#ifndef __SYUN_GRAPHICS_H__
#define __SYUN_GRAPHICS_H__
#import <CoreGraphics/CoreGraphics.h>
#import <QuartzCore/QuartzCore.h>
static inline void CGContextSetRoundedRectangle(CGContextRef context, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat r)
{
CGContextBeginPath(context);
CGContextMoveToPoint(context, x + w/2, y);
CGContextAddArcToPoint(context, x + w, y, x + w, y + h/2, r);
CGContextAddArcToPoint(context, x + w, y + h, x + w/2, y + h, r);
CGContextAddArcToPoint(context, x, y + h, x,y + h/2, r);
CGContextAddArcToPoint(context, x, y, x + w/2, y, r);
CGContextClosePath(context);
}
static inline void CGContextSetRoundedRect(CGContextRef context, CGRect rect, CGFloat r)
{
CGContextSetRoundedRectangle(context, rect.origin.x, rect.origin.y, rect.size.width, rect.size.height, r);
}
static inline void CGContextSetVaryRoundedRectangle(CGContextRef context, CGFloat x, CGFloat y, CGFloat w, CGFloat h,
CGFloat tr_r, CGFloat tl_r, CGFloat br_r, CGFloat bl_r)
{
CGContextBeginPath(context);
CGContextMoveToPoint(context, x + w/2, y);
CGContextAddArcToPoint(context, x + w, y, x + w, y + h/2, tl_r);
CGContextAddArcToPoint(context, x + w, y + h, x + w/2, y + h, bl_r);
CGContextAddArcToPoint(context, x, y + h, x, y + h/2, br_r);
CGContextAddArcToPoint(context, x, y, x + w/2, y, tr_r);
CGContextClosePath(context);
}
static inline void CGContextFillRoundedRectangle(CGContextRef context, CGFloat x, CGFloat y, CGFloat w, CGFloat h, CGFloat r)
{
CGContextSetRoundedRectangle(context, x, y, w, h, r);
CGContextFillPath(context);
}
static inline void CGContextFillRoundedRect(CGContextRef context, CGRect rect, CGFloat r)
{
CGContextSetRoundedRect(context, rect, r);
CGContextFillPath(context);
}
static inline void CGContextSimpleGradationDraw(CGContextRef context, CGRect frame, CGColorRef top, CGColorRef bottom)
{
CGColorRef colorArray[2] = { top, bottom };
CGFloat locations[2] = { 0.0, 1.0 };
CFArrayCallBacks arrayCallBacks = kCFTypeArrayCallBacks;
arrayCallBacks.retain = NULL;
arrayCallBacks.release = NULL;
CGColorSpaceRef space = CGColorSpaceCreateDeviceRGB();
CFArrayRef colors = CFArrayCreate(kCFAllocatorDefault, (const void**)colorArray, 2, &arrayCallBacks);
CGGradientRef gradation = CGGradientCreateWithColors(space, colors, locations);
// draw rectangle
CGContextDrawLinearGradient(context, gradation,
CGPointMake(frame.size.width/2, frame.origin.y),
CGPointMake(frame.size.width/2, frame.size.height),
kCGGradientDrawsBeforeStartLocation | kCGGradientDrawsAfterEndLocation);
CFRelease(colors);
CGGradientRelease(gradation);
CGColorSpaceRelease(space);
}
static inline void CGContextDrawImageInRect(CGContextRef context, CGRect rect, CGImageRef image, CGSize imageSize, CGColorRef shadowColor, CGSize shadowSize)
{
CGRect imgRect = CGRectMake(rect.origin.x + (rect.size.width - imageSize.width)/2,
rect.origin.y + (rect.size.height - imageSize.height)/2,
imageSize.width, imageSize.height);
CGContextSaveGState(context);
if(shadowColor != NULL)
CGContextSetShadowWithColor(context, shadowSize, 2, shadowColor);
CGAffineTransform transform = CGAffineTransformIdentity;
transform.d = -1.0f;
transform.ty = imgRect.origin.y + imgRect.size.height;
imgRect.origin.y = 0;
CGContextConcatCTM(context, transform);
CGContextDrawImage(context, imgRect, image);
CGContextRestoreGState(context);
}
static inline void CGContextDrawRoundedImage(CGContextRef context, CGRect rect, CGFloat round, CGImageRef image)
{
CGContextSaveGState(context);
CGContextSetRoundedRectangle(context,
rect.origin.x, rect.origin.y,
rect.size.width, rect.size.height, round);
CGContextClip(context);
CGContextDrawImageInRect(context, rect, image, rect.size, NULL, CGSizeZero);
CGContextRestoreGState(context);
}
static inline void CGContextFillImageMask(CGContextRef context, CGRect rect, CGImageRef image, CGSize imageSize, CGColorRef color, CGColorRef shadowColor, CGSize shadowSize)
{
CGRect imgRect = CGRectMake(rect.origin.x + (rect.size.width - imageSize.width)/2,
rect.origin.y + (rect.size.height - imageSize.height)/2,
imageSize.width, imageSize.height);
CGContextSaveGState(context);
if(shadowColor != NULL)
CGContextSetShadowWithColor(context, shadowSize, 2, shadowColor);
CGAffineTransform transform = CGAffineTransformIdentity;
transform.d = -1.0f;
transform.ty = imgRect.origin.y + imgRect.size.height;
imgRect.origin.y = 0;
CGContextConcatCTM(context, transform);
CGContextClipToMask(context, imgRect, image);
CGContextSetFillColorWithColor(context, color);
CGContextFillRect(context, imgRect);
CGContextRestoreGState(context);
}
#endif
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