superdialog.java

时空图计算和编辑程序

package super_cpt;

import java.awt.event.*;
import java.awt.*;
import java.awt.image.*;
import java.awt.geom.*;
public class SuperDialog extends Dialog{

	/**
	 * @param args
	 */
	public Dimension fullSize=new Dimension();
	public BufferedImage backImage;
	public BufferedImage offImage;
	public Graphics2D offG;
	private Point mousepnt=new Point();//缓存
	private Shape clshape;//关闭按钮
	private boolean pressed=false;//是否按下
	public SuperDialog(String str,Frame f,boolean bool)
	{//构造函数
		super(f,str,bool);
		setLayout(null);
		this.addMouseListener(new MouseAdapter(){
			public void mousePressed(MouseEvent e)
			{
				if(e.getButton()!=MouseEvent.BUTTON1)return;
				mousepnt.setLocation(e.getX(),e.getY());
				if(clshape.contains(e.getX(),e.getY()))
				{
					pressed=true;
					repaint(0,0,getWidth(),20);
				}
			}
			public void mouseReleased(MouseEvent e)
			{
				if(e.getButton()!=MouseEvent.BUTTON1)return;
				pressed=false;
				repaint(0,0,getWidth(),20);
				if(clshape.contains(e.getX(),e.getY()))
				{
					setVisible(false);
				}
			}
		});
		this.addMouseMotionListener(new MouseMotionAdapter(){
			public void mouseDragged(MouseEvent e)
			{
				int dx=e.getX()-mousepnt.x,dy=e.getY()-mousepnt.y;
				setLocation(getX()+dx,getY()+dy);
			}
		});
		this.setUndecorated(true);
	}
	public void initBackImage(int w,int h)
	{//初始化背景图像
		backImage=this.getGraphicsConfiguration().createCompatibleImage(getWidth(),getHeight());
		Graphics2D g2=backImage.createGraphics();
		g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
		//填充背景
		g2.setColor(Color.WHITE);
		g2.fillRect(0,0,getWidth(),getHeight());
		//填充渐变
		Color midcolor=new Color(210,210,210);
		GradientPaint paint=new GradientPaint(0,0,midcolor,0,12,Color.WHITE);
		g2.setPaint(paint);
		g2.fillRect(0,0,getWidth(),12);
		paint=new GradientPaint(0,12,Color.WHITE,0,24,midcolor);
		g2.setPaint(paint);
		g2.fillRect(0,10,getWidth(),12);
		//绘制边框
		paint=new GradientPaint(0,0,Color.BLUE,0,12,midcolor);
		g2.setPaint(paint);
		g2.fillRect(0,0,4,12);
		//g2.fillRect(getWidth()-4,0,4,10);
		paint=new GradientPaint(0,12,midcolor,0,24,Color.BLUE);
		g2.setPaint(paint);
		g2.fillRect(0,12,4,12);
		//g2.fillRect(getWidth()-4,10,4,8);
		g2.fillRect(0,22,4,getHeight()-8);
		//g2.fillRect(getWidth()-4,8,4,getHeight()-8);
		//绘制外框
		g2.setColor(Color.GRAY);
		//g2.drawLine(0,15,getWidth(),15);
		g2.setStroke(new BasicStroke(1.8f));
		g2.drawRect(0,0,w-1,h-1);
		g2.dispose();
		clshape=new RoundRectangle2D.Float(w-19,5,12,12,8,8);
	}
	private final static Color pressedColor=Color.GRAY,pressColor=Color.RED;
	public void update(Graphics g)
	{//刷新
		int w=getWidth(),h=getHeight();
		if(offImage==null || offG==null)
		{
			offImage=this.getGraphicsConfiguration().createCompatibleImage(w,h);
			offG=offImage.createGraphics();
			offG.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
			//offG.setFont(new Font(offG.getFont().getFontName(),Font.BOLD,12));
		}
		if(backImage==null)initBackImage(w,h);
		offG.drawImage(backImage,0,0,this);
		if(pressed){
			offG.setColor(pressedColor);
			offG.fill(clshape);
		}
		else{
			offG.setColor(pressColor);
			offG.fill(clshape);
		}
		offG.setColor(Color.BLACK);
		offG.drawString(getTitle(),8,17);
		///////////////////////////////////
		myPaint(offG);
		paint(g);
	}
	public void myPaint(Graphics2D g)
	{
		
	}
	public void paint(Graphics g)
	{//绘制
		if(offImage==null)
		{
			repaint();
		}
		g.drawImage(offImage,0,0,this);
		super.paint(g);
	}

}