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Diffstat (limited to 'src')
-rwxr-xr-x | src/demos/j2d/TestTextRenderer.java | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/demos/j2d/TestTextRenderer.java b/src/demos/j2d/TestTextRenderer.java new file mode 100755 index 0000000..f89b0cf --- /dev/null +++ b/src/demos/j2d/TestTextRenderer.java @@ -0,0 +1,246 @@ +/* + * 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; + +// Debugging only +//import java.awt.EventQueue; +//import java.awt.Rectangle; +import java.awt.Font; +import java.awt.Frame; +import java.awt.event.*; +import java.awt.geom.*; +import java.text.*; + +import javax.media.opengl.*; +import javax.media.opengl.glu.*; +import com.sun.opengl.util.*; +import com.sun.opengl.util.j2d.*; + +import demos.gears.Gears; +import demos.util.*; +import gleem.linalg.*; + +/** A simple test of the TextRenderer class. Draws gears underneath + with moving Java 2D-rendered text on top. */ + +public class TestTextRenderer implements GLEventListener { + // private static final boolean DEBUG = false; + + public static void main(String[] args) { + Frame frame = new Frame("Text Renderer Test"); + GLCapabilities caps = new GLCapabilities(); + caps.setAlphaBits(8); + GLCanvas canvas = new GLCanvas(caps); + canvas.addGLEventListener(new Gears()); + TestTextRenderer test = new TestTextRenderer(); + canvas.addGLEventListener(test); + 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(); + } + }); + + /* + if (DEBUG) { + Frame dbgFrame = new Frame("Debug Output"); + GLCanvas dbgCanvas = new GLCanvas(caps, null, canvas.getContext(), null); + dbgCanvas.addGLEventListener(test.new DebugListener(dbgFrame)); + dbgFrame.add(dbgCanvas); + final FPSAnimator anim = new FPSAnimator(dbgCanvas, 10); + dbgFrame.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() { + anim.stop(); + } + }).start(); + } + }); + dbgFrame.setSize(256, 256); + dbgFrame.setVisible(true); + anim.start(); + } + */ + + frame.show(); + 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 String fpsText; + private int fpsWidth; + private long startTime; + private int frameCount; + private DecimalFormat format = new DecimalFormat("####.00"); + + 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(); + } + + public void display(GLAutoDrawable drawable) { + if (startTime == 0) { + startTime = System.currentTimeMillis(); + } + + if (++frameCount == 100) { + long endTime = System.currentTimeMillis(); + float fps = 100.0f / (float) (endTime - startTime) * 1000; + frameCount = 0; + startTime = System.currentTimeMillis(); + + fpsText = "FPS: " + format.format(fps); + if (fpsWidth == 0) { + // Place it at a fixed offset wrt the lower right corner + fpsWidth = (int) renderer.getBounds("FPS: 1000.00").getWidth(); + } + } + + 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()); + + if (fpsWidth != 0) { + renderer.draw(fpsText, + drawable.getWidth() - fpsWidth - 10, + 20); + } + + // 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) {} + + /* + class DebugListener implements GLEventListener { + private GLU glu = new GLU(); + private Frame frame; + + DebugListener(Frame frame) { + this.frame = frame; + } + + public void display(GLAutoDrawable drawable) { + GL gl = drawable.getGL(); + gl.glClear(GL.GL_DEPTH_BUFFER_BIT | GL.GL_COLOR_BUFFER_BIT); + if (renderer != null) { + J2DTextureRenderer rend = renderer.getBackingStore(); + final int w = rend.getWidth(); + final int h = rend.getHeight(); + rend.beginOrthoRendering(w, h); + rend.drawOrthoRect(0, 0); + rend.endOrthoRendering(); + if (frame.getWidth() != w || + frame.getHeight() != h) { + EventQueue.invokeLater(new Runnable() { + public void run() { + frame.setSize(w, h); + } + }); + } + } + } + + // Unused methods + public void init(GLAutoDrawable drawable) {} + public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {} + public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {} + } + */ +} |