我在做一个画图板，界面已经做好了，两个Panel面板，一个在用户界面中，另一个用于画板，只是对于鼠标画画这一个功能实现不了，就是在鼠标事件上糊涂，大家帮我看看鼠标事件那块，zhixian那部分就行，给我说说该怎么写。这是我绘画部分的代码class myDemo extends 绘制图形{
Panel p1=new Panel();
private String brush = "free";
Color selectColor=Color.black;
Canvas drawArea=new Canvas();
private void myEvent(){
zhixian2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
if(zhixian2==e.getSource()){
brush="line";
}
}
});
zhixian2.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
x=e.getX();
y=e.getY();
}
});
zhixian2.addMouseListener(new MouseAdapter(){
public void mouseReleased(MouseEvent e){
int x1=e.getX();
int y1=e.getY();
Graphics2D g=(Graphics2D) zhixian2.getGraphics();
g.drawLine(x,y,x1,y1);
}
});
kongtuo2.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e) {
if(kongtuo2==e.getSource()){
brush = "circ";
}
}
});
kongtuo2.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
x=e.getX();
y=e.getY();
}
});
}
} |
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