我发现键绑定主题(JTable Key Bindings)与此类似。我了解到它的键绑定是绑定到表而不是编辑器。
我的目标是编辑器以VK-ENTER结尾的任何输入,它执行动作pindah(在新行上添加新行并设置光标闪烁)。对不起,我没有从这个例子中学习。
有办法吗?
这是我的代码(不包括导入,因为Eclipse会自动建议):
public class Fpos extends JFrame
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
try
{
Fpos frame = new Fpos();
frame.setVisible(true);
frame.setLocationRelativeTo(null); //make frame center of screen
} catch (Exception e) {e.printStackTrace();}
}
});
}
public Fpos()
{
//create Jpanel
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(10, 10, 1300, 700);
JPanel contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
//create label TOTAL
JLabel lblTotal = new JLabel("TOTAL : Rp.");
lblTotal.setFont(new Font("Wide Latin", Font.PLAIN, 30));
lblTotal.setBounds(33, 25, 312, 31);
contentPane.add(lblTotal);
//create label Total Amount
JLabel lblNewLabel = new JLabel("123,456,789");
lblNewLabel.setHorizontalAlignment(SwingConstants.RIGHT);
lblNewLabel.setFont(new Font("Wide Latin", Font.PLAIN, 60));
lblNewLabel.setBounds(583, 19, 659, 61);
contentPane.add(lblNewLabel);
//create jtable in scrollpane
String[] columnNames = {"PLU", "NAME", "UOM", "QTY", "PRICE","AMOUNT"};
Object[][] data = {{"", "", "", "", "", ""}};
DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model);
table.setFont(new Font("Tahoma", Font.PLAIN, 20));
table.setRowHeight(25);
JScrollPane sp=new JScrollPane(table);
sp.setBounds(25,100,1240,556);
contentPane.add(sp);
//set column width
TableColumnModel columnModel = table.getColumnModel();
short a[] = {150,540,50,150,150,200};
for(byte i=0;i<6;i++) { columnModel.getColumn(i).setPreferredWidth(a[i]); }
//render column format left alignment
for(byte i=0;i<3;i++) {table.getColumnModel().getColumn(i).setCellRenderer(new TextTableCellRenderer());}
//render column format ###,##0 right alignment
for(byte i=3;i<6;i++) {table.getColumnModel().getColumn(i).setCellRenderer(new NumberTableCellRenderer());}
//make cursor blinking on selected cell + select all cell value
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
table.changeSelection(0, 0, false, false);
if (table.editCellAt(0, 0))
{
Component editor = table.getEditorComponent();
editor.setFont(new Font("Tahoma", Font.PLAIN, 20));
editor.requestFocusInWindow();
((JTextComponent)editor).selectAll(); //select all cell value
//key binding
Action pindah = new AbstractAction()
{
@Override
public void actionPerformed(ActionEvent e)
{
//add row at last row
model.addRow(data);
//i want to add new blank row but somehow there is value on column 0, so I have to set it blank. If you have a solution on this, you're very welcome
model.setValueAt("", model.getRowCount()-1, 0);
//make cursor blinking on selected cell + select all cell value
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
table.changeSelection(0, 0, false, false);
if (table.editCellAt(model.getRowCount()-1, 0))
{
Component editor = table.getEditorComponent();
editor.setFont(new Font("Tahoma", Font.PLAIN, 20));
editor.requestFocusInWindow();
((JTextComponent)editor).selectAll(); //select all cell value
}
}
});
}
};
((JComponent) editor).getInputMap().put(KeyStroke.getKeyStroke((char) KeyEvent.VK_ENTER), "pindah");
((JComponent) editor).getRootPane().getActionMap().put("pindah", pindah);
}
}
});
}
// render column format left alignment
public class TextTableCellRenderer extends DefaultTableCellRenderer
{public TextTableCellRenderer() {{setHorizontalAlignment(JLabel.LEFT);}} }
// render column format to ###,##0
public class NumberTableCellRenderer extends DefaultTableCellRenderer
{
public NumberTableCellRenderer() {setHorizontalAlignment(JLabel.RIGHT);}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
{
if (value instanceof Number) {value = NumberFormat.getNumberInstance().format(value);}
return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
}
}
}
答案 0 :(得分:1)
不是答案,而是关于您的代码的几条评论。
首先,您需要了解事件调度线程(EDT)。 GUI组件的更新需要在EDT上完成。
通常,您不需要继续嵌套SwingUtilities.invokeLater()代码,因为您在EDT上创建了GUI。
我们需要添加invokeLater(...)
以使第一个单元格可编辑并使光标闪烁的原因是,如果框架不可见,则无法在组件上设置焦点。因此invokeLater(...)
允许我们将代码添加到EDT的末尾,以便在main()方法中的setVsible(...)语句之后执行。
因此,如果你想使用Key Bindings,你可以在你的Fpos类的构造函数中设置所有的Key Binding。
但是,我不知道当前要求的正确解决方案。
目前,ActionListener被添加到用作单元格编辑器的JTextField中。当您按Enter键时,将调用侦听器并调用表的stop cell editing logic
,这意味着编辑器中的值将添加到TableModel中,并且单元格编辑器将从表中删除。
因此,您不能简单地将键绑定添加到编辑器,因为您需要执行此默认行为。
我猜你可以创建一个自定义单元格编辑器。然后在ActionListener中,您可以添加其他要求。