我使用自定义JTable
创建了一个简单的DefaultTableCellRenderer
。它本身工作正常(着色最后一栏)。但是,只要我选择一行或过滤/不过滤它,该行就会着色,即使它根本不应着色。
我的渲染器:
public class StatusCellRenderer extends DefaultTableCellRenderer {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int col) {
Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus,
table.convertRowIndexToModel(row), col);
DataTableModel model = (DataTableModel) table.getModel();
String data = model.getValueAt(table.convertRowIndexToModel(row), col).toString();
if (col == 3 && data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(Color.GREEN);
}
if (col == 3 && !data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(new Color(255, 51, 51));
}
return c;
}
}
最初看起来如何(以及它应该如何看待):
选择2行(顶部和底部)后:
如您所见,有几行绿色,根本不应该着色。更令人不安的是,我只选择了绿色区块的顶部和底部一行,这意味着它会自动对两者之间的行进行着色。
如何停止此行为并仅对第一张图片中显示的行进行着色?
接受的答案帮助我克服了这些问题,这是最终的代码:
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int col) {
Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus,
table.convertRowIndexToModel(row), table.convertColumnIndexToModel(col));
DataTableModel model = (DataTableModel) table.getModel();
String data = model.getValueAt(table.convertRowIndexToModel(row), table.convertColumnIndexToModel(col))
.toString();
if (!isSelected) {
if (col == 3 && data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(Color.GREEN);
} else if (col == 3 && !data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(new Color(255, 51, 51));
} else {
c.setBackground(Color.WHITE);
}
} else {
c.setBackground(c.getBackground());
}
return c;
}
如果选择了单元格,则颜色为蓝色,如果没有,则根据值将颜色设置为白色,绿色或红色
答案 0 :(得分:2)
由于将重复使用渲染器组件,因此请考虑在没有条件匹配时设置默认颜色:
if (col == 3 && data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(Color.GREEN);
}
else if (col == 3 && !data.equalsIgnoreCase("successful") && !data.isEmpty()) {
c.setBackground(new Color(255, 51, 51));
}
else {
c.setBackground(Color.GRAY.brighter());
}