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/*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package demos.j2d;
import com.sun.opengl.util.awt.TextRenderer;
import demos.gears.Gears;
import demos.util.FPSCounter;
import demos.util.SystemTime;
import demos.util.Time;
import gleem.linalg.Vec2f;
import java.awt.Font;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.Rectangle2D;
import javax.media.opengl.GL;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.awt.GLCanvas;
import com.sun.opengl.util.Animator;
/** A simple test of the TextRenderer class. Draws gears underneath
with moving Java 2D-rendered text on top. */
public class TestTextRenderer implements GLEventListener {
public static void main(String[] args) {
Frame frame = new Frame("Text Renderer Test");
GLCapabilities caps = new GLCapabilities(null);
caps.setAlphaBits(8);
GLCanvas canvas = new GLCanvas(caps);
canvas.addGLEventListener(new Gears());
canvas.addGLEventListener(new TestTextRenderer());
frame.add(canvas);
frame.setSize(512, 512);
final Animator animator = new Animator(canvas);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
// Run this on another thread than the AWT event queue to
// make sure the call to Animator.stop() completes before
// exiting
new Thread(new Runnable() {
public void run() {
animator.stop();
System.exit(0);
}
}).start();
}
});
frame.setVisible(true);
animator.start();
}
private TextRenderer renderer;
private Time time;
private Font font;
private Vec2f velocity = new Vec2f(100.0f, 150.0f);
private Vec2f position;
private String TEST_STRING = "Java 2D Text";
private int textWidth;
private int textHeight;
private FPSCounter fps;
public void init(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
// Don't artificially slow us down, at least on platforms where we
// have control over this (note: on X11 platforms this may not
// have the effect of overriding the setSwapInterval(1) in the
// Gears demo)
gl.setSwapInterval(0);
renderer = new TextRenderer(new Font("SansSerif", Font.BOLD, 36));
time = new SystemTime();
((SystemTime) time).rebase();
// Start the text half way up the left side
position = new Vec2f(0.0f, drawable.getHeight() / 2);
Rectangle2D textBounds = renderer.getBounds(TEST_STRING);
textWidth = (int) textBounds.getWidth();
textHeight = (int) textBounds.getHeight();
fps = new FPSCounter(drawable, 36);
}
public void dispose(GLAutoDrawable drawable) {
renderer = null;
position = null;
time = null;
}
public void display(GLAutoDrawable drawable) {
time.update();
// Compute the next position of the text
position = position.plus(velocity.times((float) time.deltaT()));
// Figure out whether we have to switch directions
if (position.x() < 0) {
velocity.setX(Math.abs(velocity.x()));
} else if (position.x() + textWidth > drawable.getWidth()) {
velocity.setX(-1.0f * Math.abs(velocity.x()));
}
if (position.y() < 0) {
velocity.setY(Math.abs(velocity.y()));
} else if (position.y() + textHeight > drawable.getHeight()) {
velocity.setY(-1.0f * Math.abs(velocity.y()));
}
GL gl = drawable.getGL();
// Prepare to draw text
renderer.beginRendering(drawable.getWidth(), drawable.getHeight());
// Draw text
renderer.draw(TEST_STRING, (int) position.x(), (int) position.y());
// Draw FPS
fps.draw();
// Clean up rendering
renderer.endRendering();
}
// Unused methods
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
}
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