/*
* Copyright (C) 2006, 2007 Dennis Hunziker, Ueli Kistler
* Copyright (C) 2007 Reto Schuettel, Robin Stocker
*
* IFS Institute for Software, HSR Rapperswil, Switzerland
*
*/
package org.python.pydev.refactoring.ui.pages.listener;
import java.util.Observable;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.Text;
import org.python.pydev.refactoring.ui.pages.core.SimpleTableItem;
public class TableCellEditorListener extends Observable implements Listener {
private final Table table;
private IValidationPage wizard;
public TableCellEditorListener(IValidationPage wizard, Table parametersTable) {
this.wizard = wizard;
this.table = parametersTable;
}
/**
* http://www.eclipse.org/swt/snippets/
*/
public void handleEvent(Event event) {
final TableEditor editor = new TableEditor(table);
editor.horizontalAlignment = SWT.LEFT;
editor.grabHorizontal = true;
Rectangle clientArea = table.getClientArea();
if (table.getSelection().length != 1) {
return;
}
Rectangle bounds = table.getSelection()[0].getBounds();
Point pt = new Point(bounds.x, bounds.y);
int index = table.getTopIndex();
while (index < table.getItemCount()) {
boolean visible = false;
final SimpleTableItem item = (SimpleTableItem) table.getItem(index);
for (int i = 0; i < table.getColumnCount(); i++) {
Rectangle rect = item.getBounds(i);
if (rect.contains(pt)) {
final Text text = new Text(table, SWT.NONE);
Listener textListener = new TextListener(item, text);
text.addListener(SWT.FocusOut, textListener);
text.addListener(SWT.Traverse, textListener);
text.addListener(SWT.FocusOut, wizard);
editor.setEditor(text, item, i);
text.setText(item.getText(i));
text.selectAll();
text.setFocus();
return;
}
if (!visible && rect.intersects(clientArea)) {
visible = true;
}
}
if (!visible) {
return;
}
index++;
}
}
private final class TextListener implements Listener {
private SimpleTableItem tableItem;
private final Text text;
private TextListener(SimpleTableItem item, Text text) {
this.tableItem = item;
this.text = text;
}
public void handleEvent(final Event e) {
if (e.type == SWT.FocusOut) {
tableItem.setText(text.getText());
text.dispose();
table.setFocus();
} else if (e.type == SWT.Traverse) {
if (e.detail == SWT.TRAVERSE_RETURN) {
tableItem.setText(text.getText());
e.doit = true;
}
if (e.detail == SWT.TRAVERSE_RETURN || e.detail == SWT.TRAVERSE_ESCAPE) {
text.dispose();
if (e.detail == SWT.TRAVERSE_ESCAPE) {
e.doit = false;
}
}
}
}
}
}