问题

我想要JXTable具有“选择所有内容”的行为。做一个简单的覆盖就可以了,但是RXTable的双击功能不适用于JXTable。使用“按钮操作”模式时可以,但是使用F2或双击JXTable中的某些内容时,RXTable与RXTable冲突并删除选择,因此我将保留默认行为。是由于在内部使用GenericEditor还是其他原因?

我怎样才能让JXTable在F2上选择全部或双击编辑?

编辑:看起来这仅在模型具有为整数类型定义的列时发生。当为String或Object列定义它时,它可以按预期工作。



感谢kleopatra的修复,我能够更改selectAll方法,以便它处理JFormattedTextFields和所有编辑情况。由于原始代码可以在类型上进行编辑,因此我仅在其他情况下使用了此修复程序。这就是我最后得到的。

将RXTable中的selectAll替换为以下内容:

/*
 * Select the text when editing on a text related cell is started
 */
private void selectAll(EventObject e)
{
    final Component editor = getEditorComponent();

    if (editor == null
        || ! (editor instanceof JTextComponent
                || editor instanceof JFormattedTextField))
        return;

    if (e == null)
    {
        ((JTextComponent)editor).selectAll();
        return;
    }

    //  Typing in the cell was used to activate the editor

    if (e instanceof KeyEvent && isSelectAllForKeyEvent)
    {
        ((JTextComponent)editor).selectAll();
        return;
    }

    // If the cell we are dealing with is a JFormattedTextField
    //    force to commit, and invoke selectall

    if (editor instanceof JFormattedTextField) {
           invokeSelectAll((JFormattedTextField)editor);
           return;
    }

    //  F2 was used to activate the editor

    if (e instanceof ActionEvent && isSelectAllForActionEvent)
    {
        ((JTextComponent)editor).selectAll();
        return;
    }

    //  A mouse click was used to activate the editor.
    //  Generally this is a double click and the second mouse click is
    //  passed to the editor which would remove the text selection unless
    //  we use the invokeLater()

    if (e instanceof MouseEvent && isSelectAllForMouseEvent)
    {
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                ((JTextComponent)editor).selectAll();
            }
        });
    }
}

private void invokeSelectAll(final JFormattedTextField editor) {
    // old trick: force to commit, and invoke selectall
    editor.setText(editor.getText());
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            editor.selectAll();
        }
    });
}

最佳答案

适用于三种选择类型中的两种的快速技巧

       // in selectAll(EventObject) special case the formatted early
       if (editor instanceof JFormattedTextField) {
           invokeSelectAll(editor);
           return;
       }


        private void invokeSelectAll(final JFormattedTextField editor) {
            // old trick: force to commit, and invoke selectall
            editor.setText(editor.getText());
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    editor.selectAll();
                }
            });
        }


How to select all text in a JFormattedTextField when it gets focus?记住了这个技巧-在键入时开始编辑时不处理这种情况,在这种情况下,不会删除内容(对于普通文本字段而言),而是添加了新键。

09-27 23:06