java 我想向 JTable 列添加右填充，这可能吗？
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I would like to add a right-padding to a JTable column, is it possible?
提问by Chad
I want to add right cell-padding to a column in my JTable, how do I do it?
我想向 JTable 中的列添加正确的单元格填充，我该怎么做？
I tried searching online but I can't seem to find a definitive answer for this.
我尝试在网上搜索，但似乎找不到明确的答案。
I hope someone can help me.
我希望有一个人可以帮助我。
Regards, Chad
问候，乍得
回答by trashgod
Use a customTableCellRenderer, and specify setHorizontalAlignment(JLabel.RIGHT). There's a related example herethat illustrates JLabel.CENTER.
使用自定义TableCellRenderer，并指定setHorizontalAlignment(JLabel.RIGHT). 这里有一个相关的例子来说明JLabel.CENTER.
Addendum: My problem is padding and not alignment.
附录：我的问题是 padding 而不是 alignment。
If you want the padding insidethe cell, rather than betweencells, you can use a border in the renderer, as @Guillaume Polet suggests. Note that the border can be asymmetric; the example below pads only on the right.
如果您希望在单元格内填充而不是在单元格之间填充，则可以在渲染器中使用边框，如@Guillaume Polet 所建议的那样。请注意，边框可以是不对称的；下面的示例仅在右侧填充。
setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 5));
回答by kleopatra
A slightly enhanced version of @trashgod's correct answer is to compound the border with the padding: doing so guarantees that the default borders (f.i. the focus indicator) are not lost:
@trashgod 正确答案的略微增强版本是将边框与填充复合：这样做可以保证默认边框（fi 焦点指示器）不会丢失：
DefaultTableCellRenderer r = new DefaultTableCellRenderer() {
Border padding = BorderFactory.createEmptyBorder(0, 10, 0, 10);
@Override
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus,
row, column);
setBorder(BorderFactory.createCompoundBorder(getBorder(), padding));
return this;
}
};
Or use SwingX' JXTable and decorate the renderer with a Highlighter:
或者使用SwingX' JXTable 并用荧光笔装饰渲染器：
BorderHighlighter hl = new BorderHighlighter(
BorderFactory.createEmptyBorder(0, 10, 0, 10));
hl.setInner(true);
table.addHighlighter(hl);
