我正在尝试使用背景图像生成JXTable(文本也可以正常)。这是我的扩展JXTable类:
public class JXTableWithBackground extends JXTable{
ImageIcon image;
public JXTableWithBackground(ParticipantTableModel pTableModel, ImageIcon image){
super(pTableModel);
this.image=image;
}
public Component prepareRenderer(TableCellRenderer renderer, int row, int column){
Component c = super.prepareRenderer( renderer, row, column);
// We want renderer component to be transparent so background image is visible
if( c instanceof JComponent )((JComponent)c).setOpaque(false);
return c;
}
@Override
public void paint(Graphics g) {
//draw image in centre
final int imageWidth = image.getIconWidth();
final int imageHeight = image.getIconHeight();
final Dimension d = getSize();
final int x = (d.width - imageWidth)/2;
final int y = (d.height - imageHeight)/2;
g.drawImage(image.getImage(), x, y, null, null);
super.paint(g);
}
图像没有显示 - 我只看到空白区域。有什么想法吗?
答案 0 :(得分:1)
供将来参考:
问题似乎是表本身没有透明呈现。将表本身设置为opaque = false会有所帮助。
答案 1 :(得分:1)
对于SwingX
,建议使用不透明组件进行渲染的方法是使用Highlighter
接口。因此,建议不要覆盖prepareRenderer
方法,而是编写Highlighter
并使用JXTable#setHighlighters
方法设置表格