import java.awt.*;
import java.awt.geom.*;
import javax.swing.JPanel;

public class AreaClipTestPanel extends JPanel {
	//Eclipseの場合、シリアライズ可能クラスでこれがないと警告が出る
	private static final long serialVersionUID=0;
	//
	Image image;
	//描画タイプ指定
	int paintType;
	//
	int areaNum;
	Area areas[];
	//
	public AreaClipTestPanel(Image img){
		image=img;
		//
		paintType=0;
		areas=new Area[5];
		//各Area作成
		areas[0]=makeArea00();
		areas[1]=makeArea01();
		areas[2]=makeArea02();
		areas[3]=makeArea03();
		areas[4]=makeArea04();
	}
	public void setPaintParam(int pt,int an){
		paintType=pt;
		areaNum=an;
	}
	//
	public void paintComponent(Graphics g){
		super.paintComponent(g);
		//
		Graphics2D g2=(Graphics2D)g;
		//
		switch(paintType){
			case 0:	//none（何もしない）
			g.drawImage(image,0,0,this);
			break;
			case 1:	//fill（塗りつぶす）
			g.drawImage(image,0,0,this);
			g2.fill(areas[areaNum]);
			break;
			case 2:	//draw（輪郭）
			g.drawImage(image,0,0,this);
			g2.draw(areas[areaNum]);
			break;
			case 3:	//clipping（描画領域指定）
			g.setClip(areas[areaNum]);
			g.drawImage(image,0,0,this);
			break;
		}
	}
	//各Area作成
	private Area makeArea00(){	//円弧の実験
		Area ret=new Area();
		Area tmp;
		//
		tmp=new Area(new Arc2D.Double(100,100,100,100,0,240,Arc2D.CHORD));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(250,100,100,100,0,240,Arc2D.OPEN));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(400,100,100,100,0,240,Arc2D.PIE));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(100,250,100,100,0,180,Arc2D.CHORD));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(250,250,100,100,0,180,Arc2D.OPEN));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(400,250,100,100,0,180,Arc2D.PIE));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(100,400,100,100,0,120,Arc2D.CHORD));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(250,400,100,100,0,120,Arc2D.OPEN));
		ret.add(tmp);
		tmp=new Area(new Arc2D.Double(400,400,100,100,0,120,Arc2D.PIE));
		ret.add(tmp);
		//
		return ret;
	}
	private Area makeArea01(){	//楕円の実験
		Area ret=new Area();
		Area tmp;
		//
		tmp=new Area(new Ellipse2D.Double(100,100,100,100));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(250,100,150,200));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(450,100,200,100));
		ret.add(tmp);
		//
		return ret;
	}
	private Area makeArea02(){	//四角・角丸四角の実験
		Area ret=new Area();
		Area tmp;
		//
		tmp=new Area(new Rectangle2D.Double(50,100,100,200));
		ret.add(tmp);
		tmp=new Area(new RoundRectangle2D.Double(200,100,100,200,50,50));
		ret.add(tmp);
		tmp=new Area(new RoundRectangle2D.Double(350,100,100,200,50,100));
		ret.add(tmp);
		tmp=new Area(new RoundRectangle2D.Double(500,100,100,200,100,50));
		ret.add(tmp);
		//
		return ret;
	}
	private Area makeArea03(){	//混ぜてみるその１
		Area ret=new Area();
		Area tmp;
		//
		tmp=new Area(new Ellipse2D.Double(150,75,300,300));
		ret.add(tmp);
		tmp=new Area(new Rectangle2D.Double(75,150,450,150));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(225,150,150,150));
		ret.subtract(tmp);	//
		//
		return ret;
	}
	private Area makeArea04(){	//混ぜてみるその２
		Area ret=new Area();
		Area tmp;
		//
		tmp=new Area(new Polygon(new int[]{100-20,400-20,400+20,100+20},new int[]{100+20,400+20,400-20,100-20},4));
		ret.add(tmp);
		tmp=new Area(new Polygon(new int[]{100+20,400+20,400-20,100-20},new int[]{400+20,100+20,100-20,400-20},4));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(100-50,100-50,50*2,50*2));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(100-50,400-50,50*2,50*2));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(400-50,100-50,50*2,50*2));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(400-50,400-50,50*2,50*2));
		ret.add(tmp);
		tmp=new Area(new Ellipse2D.Double(100-25,100-25,50,50));
		ret.subtract(tmp);
		tmp=new Area(new Ellipse2D.Double(100-25,400-25,25*2,25*2));
		ret.subtract(tmp);
		tmp=new Area(new Ellipse2D.Double(400-25,100-25,25*2,25*2));
		ret.subtract(tmp);
		tmp=new Area(new Ellipse2D.Double(400-25,400-25,25*2,25*2));
		ret.subtract(tmp);
		tmp=new Area(new Rectangle2D.Double(250-10,250-50,10*2,50*2));
		ret.subtract(tmp);
		tmp=new Area(new Rectangle2D.Double(250-50,250-10,50*2,10*2));
		ret.subtract(tmp);
		//
		return ret;
	}
}