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/*******************************************************************************
* Copyright (c) 2000, 2010 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;
/*
* Taskbar snippet: customize the taskbar item with progress indicator, overlay image, and overlay text
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet336 {
static Display display;
static Shell shell;
static TaskItem getTaskBarItem () {
TaskBar bar = display.getSystemTaskBar();
if (bar == null) return null;
TaskItem item = bar.getItem(shell);
if (item == null) item = bar.getItem(null);
return item;
}
public static void main(String[] args) {
display = new Display();
shell = new Shell(display);
shell.setLayout(new GridLayout());
TabFolder folder = new TabFolder(shell, SWT.NONE);
folder.setLayoutData(new GridData(GridData.FILL_BOTH));
//Progress tab
TabItem item = new TabItem(folder, SWT.NONE);
item.setText("Progress");
Composite composite = new Composite(folder, SWT.NONE);
composite.setLayout(new GridLayout());
item.setControl(composite);
Listener listener = new Listener () {
public void handleEvent(Event event) {
Button button = (Button)event.widget;
if (!button.getSelection()) return;
TaskItem item = getTaskBarItem();
if (item != null) {
int state = ((Integer)button.getData()).intValue();
item.setProgressState(state);
}
}
};
Group group = new Group (composite, SWT.NONE);
group.setText("State");
group.setLayout(new GridLayout());
group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Button button;
String[] stateLabels = {"SWT.DEFAULT", "SWT.INDETERMINATE", "SWT.NORMAL", "SWT.ERROR", "SWT.PAUSED"};
int[] states = {SWT.DEFAULT, SWT.INDETERMINATE, SWT.NORMAL, SWT.ERROR, SWT.PAUSED };
for (int i = 0; i < states.length; i++) {
button = new Button(group, SWT.RADIO);
button.setText(stateLabels[i]);
button.setData(new Integer(states[i]));
button.addListener(SWT.Selection, listener);
if (i==0) button.setSelection(true);
}
group = new Group (composite, SWT.NONE);
group.setText("Value");
group.setLayout(new GridLayout(2, false));
group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
Label label = new Label(group, SWT.NONE);
label.setText("Progress");
final Scale scale = new Scale (group, SWT.NONE);
scale.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
scale.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
TaskItem item = getTaskBarItem();
if (item != null) item.setProgress(scale.getSelection());
}
});
//Overlay text tab
item = new TabItem(folder, SWT.NONE);
item.setText("Text");
composite = new Composite(folder, SWT.NONE);
composite.setLayout(new GridLayout());
item.setControl(composite);
group = new Group (composite, SWT.NONE);
group.setText("Enter a short text:");
group.setLayout(new GridLayout(2, false));
group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
final Text text = new Text(group, SWT.BORDER | SWT.SINGLE);
GridData data = new GridData(GridData.FILL_HORIZONTAL);
data.horizontalSpan = 2;
text.setLayoutData(data);
button = new Button(group, SWT.PUSH);
button.setText("Set");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
TaskItem item = getTaskBarItem();
if (item != null) item.setOverlayText(text.getText());
}
});
button = new Button(group, SWT.PUSH);
button.setText("Clear");
button.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
text.setText("");
TaskItem item = getTaskBarItem();
if (item != null) item.setOverlayText("");
}
});
//Overlay image tab
item = new TabItem(folder, SWT.NONE);
item.setText("Image");
composite = new Composite(folder, SWT.NONE);
composite.setLayout(new GridLayout());
item.setControl(composite);
Listener listener3 = new Listener() {
public void handleEvent(Event event) {
Button button = (Button)event.widget;
if (!button.getSelection()) return;
TaskItem item = getTaskBarItem();
if (item != null) {
String text = button.getText();
Image image = null;
if (!text.equals("NONE")) image = new Image (display, Snippet336.class.getResourceAsStream(text));
Image oldImage = item.getOverlayImage();
item.setOverlayImage (image);
if (oldImage != null) oldImage.dispose();
}
}
};
group = new Group (composite, SWT.NONE);
group.setText("Images");
group.setLayout(new GridLayout());
group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
button = new Button(group, SWT.RADIO);
button.setText("NONE");
button.addListener(SWT.Selection, listener3);
button.setSelection(true);
String[] images = {"eclipse.png", "pause.gif", "run.gif", "warning.gif"};
for (int i = 0; i < images.length; i++) {
button = new Button(group, SWT.RADIO);
button.setText(images[i]);
button.addListener(SWT.Selection, listener3);
}
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
}
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