我设置了自定义TableCellEditor / AbstractCellEditor,以便在双击单元格或按空格键时,它进入编辑模式。
class TextAreaCellEditor extends AbstractCellEditor implements TableCellEditor {
JComponent component = new JTextArea();
@Override
public boolean isCellEditable(EventObject e) {
GenInput inp = new GenInput();
if (super.isCellEditable(e)) {
if (e instanceof MouseEvent) {
MouseEvent me = (MouseEvent) e;
return me.getClickCount() >= 2;
}
if (e instanceof KeyEvent) {
KeyEvent ke = (KeyEvent) e;
return ke.getKeyCode() == inp.spacebar; //'inp' is my own class that acts as a reference for keycodes
}
}
return false;
}
...
这两个都有效,并激活StartEdit,这意味着下一步执行以下代码:
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
int rowIndex, int vColIndex) {
((JTextArea) component).setText("");
((JTextArea) component).setWrapStyleWord(true);
((JTextArea) component).setLineWrap(true);
((JTextArea) component).requestFocus();
((JTextArea) component).addKeyListener(new KeyListener() {
...
工作部分:无论我是否包含"((JTextArea)组件).requestFocus();" ,当我双击它时,完全进入编辑模式,即。插入符号开始闪烁,当我按下' up'或者' down'插入符号在多行文本框中上下移动,而不是向上或向下跳到下一行。
问题:然而,当我按下空格键时,它会进入某种“部分”状态。编辑模式;结果是,插入符号没有闪烁,虽然我可以在框中输入单词,但如果我按下' /' down'它将跳转到上一行/下一行。
当我开始时,我该怎么做才能显示插入符号(即进入完全编辑模式'而不是“部分编辑模式”#39;我已经描述过)通过空格键编辑?
编辑:"((JTextArea)组件).getCaret()。setVisible(true);"使插入符号显示,但没有改变它处于部分编辑模式的事实,所以我仍然无法按下/按下而不会失去焦点。
答案 0 :(得分:0)
以下是解决方案:
table.setSurrendersFocusOnKeystroke(真);
上下文:
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
int rowIndex, int vColIndex) {
table.setSurrendersFocusOnKeystroke(true);
((JTextArea) component).setText("");
((JTextArea) component).setWrapStyleWord(true);
((JTextArea) component).setLineWrap(true);
((JTextArea) component).setFocusable(true);
答案 1 :(得分:0)
适合我的工作
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.util.EventObject;
import javax.swing.AbstractCellEditor;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
DefaultTableModel model = new DefaultTableModel(10, 1);
JTable table = new JTable(model);
table.setDefaultEditor(Object.class, new TextAreaCellEditor());
table.setRowHeight(20);
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new JScrollPane(table));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
class TextAreaCellEditor extends AbstractCellEditor implements TableCellEditor {
JTextArea component = new JTextArea();
@Override
public boolean isCellEditable(EventObject e) {
if (super.isCellEditable(e)) {
if (e instanceof MouseEvent) {
MouseEvent me = (MouseEvent) e;
return me.getClickCount() >= 2;
}
if (e instanceof KeyEvent) {
KeyEvent ke = (KeyEvent) e;
return ke.getKeyCode() == KeyEvent.VK_SPACE;
}
}
return false;
}
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected,
int rowIndex, int vColIndex) {
((JTextArea) component).setText("");
((JTextArea) component).setWrapStyleWord(true);
((JTextArea) component).setLineWrap(true);
return component;
}
@Override
public Object getCellEditorValue() {
return component.getText();
}
}
}
也许代码中的其他内容正在弄乱它。考虑提供一个runnable example来证明您的问题。这不是代码转储,而是您正在做的事情的一个示例,它突出了您遇到的问题。这将减少混淆和更好的响应