// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.widgets;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.KeyboardFocusManager;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JTable;
import javax.swing.JViewport;
import javax.swing.KeyStroke;
import javax.swing.ListSelectionModel;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
/**
* Generic table offering custom cell navigation features.
* @since 9497
*/
public abstract class JosmTable extends JTable {
private int colEnd;
protected SelectNextColumnCellAction selectNextColumnCellAction;
protected SelectPreviousColumnCellAction selectPreviousColumnCellAction;
protected JosmTable(TableModel dm, TableColumnModel cm) {
this(dm, cm, null);
}
protected JosmTable(TableModel dm, TableColumnModel cm, ListSelectionModel sm) {
super(dm, cm, sm);
}
protected void installCustomNavigation(int colEnd) {
// make ENTER behave like TAB
getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(
KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0, false), "selectNextColumnCell");
// install custom navigation actions
this.colEnd = colEnd;
selectNextColumnCellAction = new SelectNextColumnCellAction();
selectPreviousColumnCellAction = new SelectPreviousColumnCellAction();
getActionMap().put("selectNextColumnCell", selectNextColumnCellAction);
getActionMap().put("selectPreviousColumnCell", selectPreviousColumnCellAction);
}
/**
* Action to be run when the user navigates to the next cell in the table, for instance by
* pressing TAB or ENTER. The action alters the standard navigation path from cell to cell: <ul>
* <li>it jumps over cells in the first column</li>
* <li>it automatically add a new empty row when the user leaves the last cell in the table</li></ul>
*/
protected class SelectNextColumnCellAction extends AbstractAction {
@Override
public void actionPerformed(ActionEvent e) {
int col = getSelectedColumn();
int row = getSelectedRow();
if (getCellEditor() != null) {
getCellEditor().stopCellEditing();
}
if (col == colEnd && row < getRowCount() - 1) {
row++;
} else if (row < getRowCount() - 1) {
col = colEnd;
row++;
} else {
// go to next component, no more rows in this table
KeyboardFocusManager manager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
manager.focusNextComponent();
return;
}
changeSelection(row, col, false, false);
if (editCellAt(getSelectedRow(), getSelectedColumn())) {
getEditorComponent().requestFocusInWindow();
}
}
}
/**
* Action to be run when the user navigates to the previous cell in the table, for instance by
* pressing Shift-TAB
*/
protected class SelectPreviousColumnCellAction extends AbstractAction {
@Override
public void actionPerformed(ActionEvent e) {
int col = getSelectedColumn();
int row = getSelectedRow();
if (getCellEditor() != null) {
getCellEditor().stopCellEditing();
}
if (col <= 0 && row <= 0) {
// change nothing
} else if (row > 0) {
col = colEnd;
row--;
}
changeSelection(row, col, false, false);
if (editCellAt(getSelectedRow(), getSelectedColumn())) {
getEditorComponent().requestFocusInWindow();
}
}
}
protected Dimension getPreferredFullWidthSize() {
Container c = getParent();
while (c != null && !(c instanceof JViewport)) {
c = c.getParent();
}
if (c != null) {
Dimension d = super.getPreferredSize();
d.width = c.getSize().width;
return d;
}
return super.getPreferredSize();
}
}