paintboard1(String s) {
super(s);
addMouseMotionListener(this);
addMouseListener(this);
paintInfo = new Vector();
/* 各工具按钮及选择项 */
// 颜色选择
ColChoice = new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
// 画笔大小选择
SizeChoice = new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
// 橡皮大小选择
EraserChoice = new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
// //////////////////////////////////////////////////
toolPanel = new Panel();
clear = new Button("清除");
eraser = new Button("橡皮");
pen = new Button("画笔");
drLine = new Button("画直线");
drCircle = new Button("画圆形");
drRect = new Button("画矩形");
openPic = new Button("打开图画");
savePic = new Button("保存图画");
colchooser = new Button("显示调色板");
// 各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
openPic.addActionListener(this);
savePic.addActionListener(this);
colchooser.addActionListener(this);
颜色 = new Label("画笔颜色", Label.CENTER);
大小B = new Label("画笔大小", Label.CENTER);
大小E = new Label("橡皮大小", Label.CENTER);
// 面板添加组件
toolPanel.add(openPic);
toolPanel.add(savePic);
toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);
toolPanel.add(颜色);
toolPanel.add(ColChoice);
toolPanel.add(大小B);
toolPanel.add(SizeChoice);
toolPanel.add(colchooser);
toolPanel.add(eraser);
toolPanel.add(大小E);
toolPanel.add(EraserChoice);
toolPanel.add(clear);
// 工具面板到APPLET面板
add(toolPanel, BorderLayout.NORTH);
setBounds(230, 50, 900, 650);
setVisible(true);
validate();
// dialog for save and load
openPicture = new FileDialog(this, "打开图画", FileDialog.LOAD);
openPicture.setVisible(false);
savePicture = new FileDialog(this, "保存图画", FileDialog.SAVE);
savePicture.setVisible(false);
openPicture.addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
openPicture.setVisible(false);
}
});
savePicture.addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
savePicture.setVisible(false);
}
});
addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
