Canvas类上能不能画图？谢谢各位大哥帮忙

[kaiin]

我要设计一个GUI界面，要求Frame 框里 有一部分可以画图。

[手指风]

加一个
JPanel panel = new JPanel;
Graphics g = panel.getGraphics;
然后g.drawLine.....

[nogreat]

//canvas 部件用于显示图像
canvas = new Canvas(shell, SWT.BORDER);

canvas.setBounds(10,10,100,200);
canvas.setLayoutDeferred(true);
canvas.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));

canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
if (image == null) {
e.gc.drawString("No image", 0, 0);
} else {
Rectangle rect=canvas.getBounds();
//canvas.scroll(0,0,0,0,image.getImageData().width,image.getImageData().height,false);
//e.gc.drawImage(image,0,0);
e.gc.drawImage(image, 0, 0,image.getImageData().width,image.getImageData().height,
0,0,rect.width,rect.height);
}

}
});



代码可能是这样的，你可以测试一下~