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Diffstat (limited to 'src/demos/j2d/TestTextRenderer.java')
-rwxr-xr-x | src/demos/j2d/TestTextRenderer.java | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/demos/j2d/TestTextRenderer.java b/src/demos/j2d/TestTextRenderer.java new file mode 100755 index 0000000..2d88a2d --- /dev/null +++ b/src/demos/j2d/TestTextRenderer.java @@ -0,0 +1,168 @@ +/* + * 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) {} +} |