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/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* Text example snippet: implement content assist
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet320 {
public static void main(String [] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
final Text text = new Text(shell, SWT.SINGLE | SWT.BORDER);
text.setLayoutData(new GridData(150, SWT.DEFAULT));
shell.pack();
shell.open();
final Shell popupShell = new Shell(display, SWT.ON_TOP);
popupShell.setLayout(new FillLayout());
final Table table = new Table(popupShell, SWT.SINGLE);
for (int i = 0; i < 5; i++) {
new TableItem(table, SWT.NONE);
}
text.addListener(SWT.KeyDown, event -> {
switch (event.keyCode) {
case SWT.ARROW_DOWN:
int index = (table.getSelectionIndex() + 1) % table.getItemCount();
table.setSelection(index);
event.doit = false;
break;
case SWT.ARROW_UP:
index = table.getSelectionIndex() - 1;
if (index < 0) index = table.getItemCount() - 1;
table.setSelection(index);
event.doit = false;
break;
case SWT.CR:
if (popupShell.isVisible() && table.getSelectionIndex() != -1) {
text.setText(table.getSelection()[0].getText());
popupShell.setVisible(false);
}
break;
case SWT.ESC:
popupShell.setVisible(false);
break;
}
});
text.addListener(SWT.Modify, event -> {
String string = text.getText();
if (string.length() == 0) {
popupShell.setVisible(false);
} else {
TableItem[] items = table.getItems();
for (int i = 0; i < items.length; i++) {
items[i].setText(string + '-' + i);
}
Rectangle textBounds = display.map(shell, null, text.getBounds());
popupShell.setBounds(textBounds.x, textBounds.y + textBounds.height, textBounds.width, 150);
popupShell.setVisible(true);
}
});
table.addListener(SWT.DefaultSelection, event -> {
text.setText(table.getSelection()[0].getText());
popupShell.setVisible(false);
});
table.addListener(SWT.KeyDown, event -> {
if (event.keyCode == SWT.ESC) {
popupShell.setVisible(false);
}
});
Listener focusOutListener = event -> display.asyncExec(() -> {
if (display.isDisposed()) return;
Control control = display.getFocusControl();
if (control == null || (control != text && control != table)) {
popupShell.setVisible(false);
}
});
table.addListener(SWT.FocusOut, focusOutListener);
text.addListener(SWT.FocusOut, focusOutListener);
shell.addListener(SWT.Move, event -> popupShell.setVisible(false));
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
}
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