一个画画的板子...据说有浮云.. 我来我网·5come5 Forum

本页主题: 一个画画的板子...据说有浮云..	显示签名 \| 打印 \| 加为IE收藏 \| 收藏主题 \| 上一主题 \| 下一主题

vito

∷ 性别:

∷ 状态:

∷ 等级: 人见人爱

∷ 发贴: 2741

∷ 威望: 0

∷ 浮云: 1106

∷ 在线等级:

∷ 注册时间: 2005-10-14

∷ 最后登陆: 2009-10-16

【复制此帖地址只看此人回复】

5come5帮你背单词 [ lake /leik/ n. 湖，湖泊 ]

一个画画的板子...据说有浮云..

一个画画的板子,有修改

ms 这里有浮云, 版主来加吧

Quote:

package org.vito.draw.temp.test;

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
* 一个可以写写画画的板子,有修改.
* @author vito
*
*/
public class Paintcha extends Applet{
/**
   *
   */
private static final long serialVersionUID = 4221836743513294553L;

MyPanel panel;
ShowPanel showPanel;

public void init() {
setLayout(new BorderLayout());
panel = new MyPanel();
panel.setForeground(Color.RED);
showPanel = new ShowPanel(panel);
add("North",showPanel);
add("Center", panel);
}

public void destroy() {
remove(panel);
}

public static void main(String args[]) {
Paintcha paint = new Paintcha();
Frame frame = new Frame("Ha ha ha ... ");
paint.init();
paint.start();
frame.add("Center", paint);
frame.setSize(660, 400);
frame.setVisible(true);

frame.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
}
}
package org.vito.draw.temp.test;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Panel;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.util.Vector;

/**
* 画画面板,有修改.
* @author vito
*
*/
class MyPanel extends Panel implements MouseListener, MouseMotionListener {
/**
   *
   */
private static final long serialVersionUID = 9123686144551555715L;

//向量储存特征
Vector<Rectangle> lines = new Vector<Rectangle>();
Vector<Color> colors = new Vector<Color>();

//位置
int x1,y1;
int x2,y2;

public MyPanel() {
setBackground(Color.WHITE);
addMouseMotionListener(this);
addMouseListener(this);
}

/**
* 拖
*/
public void mouseDragged(MouseEvent e) {
e.consume();
colors.addElement(getForeground());
lines.addElement(new Rectangle(x1, y1, e.getX(), e.getY()));
x1 = e.getX();
y1 = e.getY();
repaint();
}

/**
* 按住鼠标
*/
public void mousePressed(MouseEvent e) {
e.consume();
colors.addElement(getForeground());
lines.addElement(new Rectangle(e.getX(), e.getY(), -1, -1));
x1 = e.getX();
y1 = e.getY();
repaint();
}

//Further ...
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}

public void paint(Graphics g) {
int points = lines.size();
g.setColor(getForeground());

for (int i=0; i < points; i++) {
Rectangle rec = (Rectangle)lines.elementAt(i);
g.setColor((Color)colors.elementAt(i));
//画法.
if (rec.width != -1) {
g.drawLine(rec.x, rec.y, rec.width, rec.height);
} else {
g.drawLine(rec.x, rec.y, rec.x, rec.y);
}
}
}
}
package org.vito.draw.temp.test;

import java.awt.Button;
import java.awt.Label;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

/**
* 显示面板.
* @author vito
*
*/
class ShowPanel extends Panel implements ActionListener{
/**
   *
   */
private static final long serialVersionUID = 6044523251854800419L;

MyPanel panel;

Button redo;
Label showLabel;

public ShowPanel(MyPanel panel){
this.panel = panel;
showLabel = new Label("可以用鼠标在下面写写画画...点击...拖动");
redo = new Button("Clean ...");
redo.addActionListener(this);
add("West",showLabel);
add("East",redo);
}

public void actionPerformed(ActionEvent e) {
if(e.getSource() == redo){
panel.lines = new Vector(); //redefine
panel.colors = new Vector();
panel.repaint();
}
}
}