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/*******************************************************************************
* Copyright (c) 2000, 2005 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.opengl.examples;
import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
import java.util.*;
public class OpenGLExample {
private static ResourceBundle resourceBundle =
ResourceBundle.getBundle("examples_opengl");
private TabFolder tabFolder;
private OpenGLTab[] tabs;
private int sleep;
public OpenGLExample() {}
/**
* Creates an instance of an OpenGLExample embedded inside
* the supplied parent Composite.
*
* @param parent the container of the example
*/
public OpenGLExample(Composite parent) {
tabFolder = new TabFolder(parent, SWT.NONE);
tabs =
new OpenGLTab[] {
new AntialiasingTab(),
new AreaTab(),
new FogTab(),
new GradientTab(),
new LightTab(),
new NurbTab(),
new ObjectsTab(),
new ReflectionTab(),
new StencilTab(),
new TextureTab(),
new TransparencyTab()
};
for (int i = 0; i < tabs.length; i++) {
TabItem item = new TabItem(tabFolder, SWT.NONE);
item.setText(tabs[i].getTabText());
item.setControl(tabs[i].createTabFolderPage(tabFolder));
}
tabFolder.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event e) {
OpenGLTab tab = tabs[tabFolder.getSelectionIndex()];
tab.setCurrent();
sleep = tab.getSleepLength();
}
});
if (tabs.length > 0) {
tabs[0].setCurrent();
sleep = tabs[0].getSleepLength();
}
Runnable timer = new Runnable() {
public void run() {
if (tabFolder.isDisposed()) return;
display();
tabFolder.getDisplay().timerExec(sleep, this);
}
};
timer.run();
tabFolder.addListener(SWT.Dispose, new Listener() {
public void handleEvent(Event e) {
dispose();
}
});
}
/**
* Renders the scene of the current tab.
*/
void display() {
int index = tabFolder.getSelectionIndex();
tabs[index].render();
tabs[index].swap();
}
/**
* Disposes of all contained tabs.
*/
void dispose() {
tabFolder = null;
for (int i = 0; i < tabs.length; i++) {
tabs[i].dispose();
}
}
/**
* Gets a string from the resource bundle.
* We don't want to crash because of a missing String.
* Returns the key if not found.
*/
static String getResourceString(String key) {
try {
return resourceBundle.getString(key);
} catch (MissingResourceException e) {
return key;
} catch (NullPointerException e) {
return "!" + key + "!";
}
}
/**
* Invokes as a standalone program.
*/
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
OpenGLExample instance = new OpenGLExample(shell);
shell.setText(getResourceString("window.title"));
shell.open();
while (! shell.isDisposed()) {
if (! display.readAndDispatch()) display.sleep();
}
instance.dispose();
}
public Shell open (Display display) {
Shell shell = new Shell (display);
shell.setLayout(new FillLayout());
new OpenGLExample(shell);
shell.setText(getResourceString("window.title"));
shell.open();
return shell;
}
}
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