#import "GraphicsQC.h"
//GraphicsQCの実装
@implementation GraphicsQC
//====================
//初期化
//====================
//初期化
- (id)init {
if (self=[super init]) {
_context=NULL;
_contextBMP=NULL;
_font=[UIFont boldSystemFontOfSize:12];
}
return self;
}
//メモリ解放
- (void)dealloc {
[self releaseContext];
[super dealloc];
}
//====================
//コンテキスト
//====================
//コンテキストの指定
- (void)setContext:(CGContextRef)context {
//コンテキストの解放
[self releaseContext];
//コンテキストの指定
_context=context;
CGContextRetain(_context);
}
//コンテキストの生成
- (void)makeContext:(CGSize)size {
//コンテキストの解放
[self releaseContext];
//コンテキストの生成
CGColorSpaceRef colorSpace=CGColorSpaceCreateDeviceRGB();
_contextBMP=malloc(size.width*size.height*sizeof(unsigned char)*4);
_context=CGBitmapContextCreate(_contextBMP,
size.width,size.height,8,size.width*4,
colorSpace,kCGImageAlphaPremultipliedFirst);
if (_context==nil) {
CGColorSpaceRelease(colorSpace);
[self releaseContext];
return;
}
CGContextClearRect(_context,CGRectMake(0,0,size.width,size.height));
CGColorSpaceRelease(colorSpace);
}
//コンテキストの解放
- (void)releaseContext {
if (_context!=NULL) {
CGContextRelease(_context);
_context=NULL;
}
if (_contextBMP!=NULL) {
free(_contextBMP);
_contextBMP=NULL;
}
}
//コンテキストのプッシュ
- (void)pushContext {
UIGraphicsPushContext(_context);
}
//コンテキストのポップ
- (void)popContext {
UIGraphicsPopContext();
}
//スクリーンショットの取得
- (UIImage*)makeScreenShot {
CGImageRef imageRef=CGBitmapContextCreateImage(_context);
UIImage* image=[[[UIImage alloc] initWithCGImage:imageRef] autorelease];
CGImageRelease(imageRef);
return image;
}
//====================
//アクセス
//====================
//色の指定
- (void)setColorR:(float)r g:(float)g b:(float)b {
CGContextSetRGBFillColor(_context,r,g,b,1);
CGContextSetRGBStrokeColor(_context,r,g,b,1);
}
//色の指定
- (void)setColorR:(float)r g:(float)g b:(float)b a:(float)a {
CGContextSetRGBFillColor(_context,r,g,b,a);
CGContextSetRGBStrokeColor(_context,r,g,b,a);
}
//ライン幅の指定
- (void)setLineWidth:(float)lineWidth {
CGContextSetLineWidth(_context,lineWidth);
}
//フォントの指定
- (void)setFont:(UIFont*)font {
_font=font;
}
//平行移動の指定
- (void)setTranslateX:(float)x y:(float)y {
CGContextTranslateCTM(_context,x,y);
}
//スケールの指定
- (void)setScaleW:(float)w h:(float)h {
CGContextScaleCTM(_context,w,h);
}
//回転の指定
- (void)setRotate:(float)rotate {
CGContextRotateCTM(_context,rotate);
}
//クリッピングの指定
- (void)clipRectX:(float)x y:(float)y w:(float)w h:(float)h {
CGContextClipToRect(_context,CGRectMake(x,y,w,h));
}
//行列のプッシュ
- (void)pushMatrix {
CGContextSaveGState(_context);
}
//行列のポップ
- (void)popMatrix {
CGContextRestoreGState(_context);
}
//====================
//描画
//====================
//ラインの描画
- (void)drawLineX0:(float)x0 y0:(float)y0 x1:(float)x1 y1:(float)y1 {
CGContextSetLineCap(_context,kCGLineCapRound);
CGContextMoveToPoint(_context,x0,y0);
CGContextAddLineToPoint(_context,x1,y1);
CGContextStrokePath(_context);
}
//ポリラインの描画
- (void)drawPolylineX:(float[])x y:(float[])y length:(int)length {
CGMutablePathRef path=CGPathCreateMutable();
CGPathMoveToPoint(path,NULL,x[0],y[0]);
for (int i=1;i<length;i++) {
CGPathAddLineToPoint(path,NULL,x[i],y[i]);
}
[self drawPolyline:path];
CGPathRelease(path);
}
//ポリラインの描画
- (void)drawPolyline:(CGPoint[])vertex length:(int)length {
CGMutablePathRef path=CGPathCreateMutable();
CGPathMoveToPoint(path,NULL,vertex[0].x,vertex[0].y);
for (int i=1;i<length;i++) {
CGPathAddLineToPoint(path,NULL,vertex[i].x,vertex[i].y);
}
[self drawPolyline:path];
CGPathRelease(path);
}
//ポリラインの描画
- (void)drawPolyline:(CGMutablePathRef)line {
CGContextSetLineCap(_context,kCGLineCapRound);
CGContextSetLineJoin(_context,kCGLineJoinRound);
CGContextAddPath(_context,line);
CGContextDrawPath(_context,kCGPathStroke);
}
//矩形の描画
- (void)drawRectX:(float)x y:(float)y w:(float)w h:(float)h {
CGContextMoveToPoint(_context,x,y);
CGContextAddLineToPoint(_context,x+w,y);
CGContextAddLineToPoint(_context,x+w,y+h);
CGContextAddLineToPoint(_context,x,y+h);
CGContextAddLineToPoint(_context,x,y);
CGContextAddLineToPoint(_context,x+w,y);
CGContextStrokePath(_context);
}
//矩形の塗り潰し
- (void)fillRectX:(float)x y:(float)y w:(float)w h:(float)h {
CGContextFillRect(_context,CGRectMake(x,y,w,h));
}
//円の描画
- (void)drawCircleX:(float)x y:(float)y r:(float)r {
CGContextAddEllipseInRect(_context,CGRectMake(x-r,y-r,r*2,r*2));
CGContextStrokePath(_context);
}
//円の描画
- (void)drawCircleX:(float)x y:(float)y w:(float)w h:(float)h {
CGContextAddEllipseInRect(_context,CGRectMake(x,y,w,h));
CGContextStrokePath(_context);
}
//円の塗り潰し
- (void)fillCircleX:(float)x y:(float)y r:(float)r {
CGContextFillEllipseInRect(_context,CGRectMake(x-r,y-r,r*2,r*2));
}
//円の塗り潰し
- (void)fillCircleX:(float)x y:(float)y w:(float)w h:(float)h {
CGContextFillEllipseInRect(_context,CGRectMake(x,y,w,h));
}
//三角形の描画
- (void)drawTriangle:(CGPoint[])pos {
CGContextMoveToPoint(_context,pos[0].x,pos[0].y);
CGContextAddLineToPoint(_context,pos[1].x,pos[1].y);
CGContextAddLineToPoint(_context,pos[2].x,pos[2].y);
CGContextStrokePath(_context);
}
//三角形の塗り潰し
- (void)fillTriangle:(CGPoint[])pos {
CGContextMoveToPoint(_context,pos[0].x,pos[0].y);
CGContextAddLineToPoint(_context,pos[1].x,pos[1].y);
CGContextAddLineToPoint(_context,pos[2].x,pos[2].y);
CGContextFillPath(_context);
}
//イメージの描画
- (void)drawImage:(UIImage*)image x:(float)x y:(float)y {
if (image==nil) return;
[image drawAtPoint:(CGPointMake(x,y))];
}
//イメージの描画
- (void)drawImage:(UIImage*)image x:(float)x y:(float)y w:(float)w h:(float)h {
if (image==nil) return;
[image drawInRect:(CGRectMake(x,y,w,h))];
}
//文字列の描画
- (void)drawString:(NSString*)string x:(float)x y:(float)y {
[string drawAtPoint:CGPointMake(x,y) withFont:_font];
}
@end
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