有没有办法强制JTable专注于整个行而不是单个单元格?我不是在谈论行选择突出显示,而是关于我希望将所有单元格包含在聚焦行上的焦点边界。
更新
包含不可编辑单元格和删除行功能的表格:
public class TableTest {
private static void createAndShowGUI() {
int rows = 20;
int cols = 2;
String[] headers = { "Column 1", "Column 2" };
String[][] data = new String[rows][cols];
for (int j = 0; j < rows; j++)
for (int k = 0; k < cols; k++)
data[j][k] = "item " + (j * cols + k + 1);
JTable table = new JTable();
DefaultTableModel tableModel = new DefaultTableModel(data, headers) {
// Disable editing of the cells
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table.setModel(tableModel);
table.setShowGrid(false);
table.setIntercellSpacing(new Dimension(0,0));
// key binding to remove rows
InputMap inputMap = table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
ActionMap actionMap = table.getActionMap();
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0), "REMOVE");
actionMap.put("REMOVE", new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
int[] rows = table.getSelectedRows();
for (int i = rows.length - 1; i >= 0; i--) {
tableModel.removeRow(rows[i]);
}
}
});
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new JScrollPane(table));
f.setSize(500, 500);
f.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) {}
createAndShowGUI();
}
});
}
}
&#34;聚焦边界&#34;在选定的行上:
&#34;聚焦边界&#34;未选择任何行:
&#34;聚焦边界&#34;在Windows LAF中:
我想要这个&#34;关注边界&#34;包括行的所有单元格(当可见时)。
下面是相同的代码,但我已经添加了@camickr代码的一部分:
public class TableTest {
private static void createAndShowGUI() {
int rows = 20;
int cols = 2;
String[] headers = { "Column 1", "Column 2" };
String[][] data = new String[rows][cols];
for (int j = 0; j < rows; j++)
for (int k = 0; k < cols; k++)
data[j][k] = "item " + (j * cols + k + 1);
// ADDED CODE
JTable table = new JTable() {
private Border outside = new MatteBorder(1, 0, 1, 0, Color.BLACK);
private Border inside = new EmptyBorder(0, 1, 0, 1);
private Border border = new CompoundBorder(outside, inside);
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
Component c = super.prepareRenderer(renderer, row, column);
JComponent jc = (JComponent) c;
// Add a border to the selected row
if (isRowSelected(row)) jc.setBorder(border);
return c;
}
};
DefaultTableModel tableModel = new DefaultTableModel(data, headers) {
// Disable editing of the cells
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
table.setModel(tableModel);
table.setShowGrid(false);
table.setIntercellSpacing(new Dimension(0,0));
// key binding to remove rows
InputMap inputMap = table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
ActionMap actionMap = table.getActionMap();
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0), "REMOVE");
actionMap.put("REMOVE", new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
int[] rows = table.getSelectedRows();
for (int i = rows.length - 1; i >= 0; i--) {
tableModel.removeRow(rows[i]);
}
}
});
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new JScrollPane(table));
f.setSize(500, 500);
f.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) {}
createAndShowGUI();
}
});
}
}
这会在整个行周围添加边框(但没有左/右插图以包含所有单元格)。这不是&#34;焦点边框/矩形&#34;,它是仅在选定行周围显示的边框。当我删除一行时,清除所选行并重新出现焦点边框。
请注意,我不想要隐藏焦点边框(我知道该怎么做),我想保持它的功能,但要包括行的所有单元格而不是一个单元格当它变得可见时。