JTable标头对齐 [英] JTable header alignment
本文介绍了JTable标头对齐的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想在JTable-derrived类的标题中设置标签的垂直对齐方式。
I would like to set the vertical alignment of the label in the header of my JTable-derrived class.
我知道 setVerticalAlignment(SwingConstants.BOTTOM);
我的标题比字体高得多,我想将文字略低于垂直中心。
My header is much higher than the font and I would like to place the text slightly below the vertical centre.
怎么能我这样做,没有覆盖 paint()
?
How can I do this, without overriding paint()
?
THX
推荐答案
其中一种方法是设置 Renderer
, TableHeader
by默认返回 JLabel
,例如
one of ways is to set Renderer
, TableHeader
by default returns JLabel
, for example
final TableCellRenderer tcrOs = myTable.getTableHeader().getDefaultRenderer();
myTable.getTableHeader().setDefaultRenderer(new TableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
JLabel lbl = (JLabel) tcrOs.getTableCellRendererComponent(table,
value, isSelected, hasFocus, row, column);
lbl.setForeground(AppVariables.textColor);
lbl.setBorder(BorderFactory.createCompoundBorder(lbl.getBorder(),
BorderFactory.createEmptyBorder(0, 5, 0, 0)));
lbl.setHorizontalAlignment(SwingConstants.LEFT);
if (isSelected) {
lbl.setForeground(Color.red);
lbl.setBackground(Color.lightGray);
} else {
lbl.setForeground(Color.blue);
lbl.setBackground(Color.black);
}
return lbl;
}
});
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