1 files changed, 168 insertions, 0 deletions
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/AWTPrintLifecycle.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/AWTPrintLifecycle.java
new file mode 100644
index 000000000..a54f6bac6
--- /dev/null
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/AWTPrintLifecycle.java
@@ -0,0 +1,168 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions 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.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.nativewindow.awt;
+
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.print.PrinterJob;
+
+import jogamp.nativewindow.awt.AWTMisc;
+
+/**
+ * Interface describing print lifecycle to support AWT printing,
+ * e.g. on AWT {@link javax.media.opengl.GLAutoDrawable GLAutoDrawable}s.
+ * <a name="impl"><h5>Implementations</h5></a>
+ * <p>
+ * Implementing {@link javax.media.opengl.GLAutoDrawable GLAutoDrawable} classes based on AWT
+ * supporting {@link Component#print(Graphics)} shall implement this interface.
+ * </p>
+ * <a name="usage"><h5>Usage</h5></a>
+ * <p>
+ * Users attempting to print an AWT {@link Container} containing {@link AWTPrintLifecycle} elements
+ * shall consider decorating the {@link Container#printAll(Graphics)} call with<br>
+ * {@link #setupPrint(double, double, int) setupPrint(..)} and {@link #releasePrint()}
+ * on all {@link AWTPrintLifecycle} elements in the {@link Container}.<br>
+ * To minimize this burden, a user can use {@link Context#setupPrint(Container, double, double, int) Context.setupPrint(..)}:
+ * <pre>
+ *  Graphics2D g2d;
+ *  Container cont;
+ *  double scaleGLMatXY = 72.0/glDPI;
+ *  int numSamples = 0; // leave multisampling as-is
+ *  PrinterJob job;
+ *  ...
+    final AWTPrintLifecycle.Context ctx = AWTPrintLifecycle.Context.setupPrint(cont, scaleGLMatXY, scaleGLMatXY, numSamples);
+    try {
+       AWTEDTExecutor.singleton.invoke(true, new Runnable() {
+            public void run() {
+                try {
+                    job.print();
+                } catch (PrinterException ex) {
+                    ex.printStackTrace();
+                }
+           } });
+    } finally {
+       ctx.releasePrint();
+    }
+ * 
+ * </pre>
+ * </p>
+ */
+public interface AWTPrintLifecycle {
+
+    public static final int DEFAULT_PRINT_TILE_SIZE = 512;
+    
+    
+    /**
+     * Shall be called before {@link PrinterJob#print()}.
+     * <p>
+     * See <a href="#usage">Usage</a>.
+     * </p>
+     * @param scaleMatX {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatX * width pixels
+     * @param scaleMatY {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatY * height pixels
+     * @param numSamples multisampling value: < 0 turns off, == 0 leaves as-is, > 0 enables using given num samples 
+     */
+    void setupPrint(double scaleMatX, double scaleMatY, int numSamples);
+    
+    /**
+     * Shall be called after {@link PrinterJob#print()}.
+     * <p>
+     * See <a href="#usage">Usage</a>.
+     * </p>
+     */
+    void releasePrint();
+
+    /**
+     * Convenient {@link AWTPrintLifecycle} context simplifying calling {@link AWTPrintLifecycle#setupPrint(double, double, int) setupPrint(..)}
+     * and {@link AWTPrintLifecycle#releasePrint()} on all {@link AWTPrintLifecycle} elements of a {@link Container}.
+     * <p>
+     * See <a href="#usage">Usage</a>.
+     * </p>
+     */
+    public static class Context {
+        /**
+         * <p>
+         * See <a href="#usage">Usage</a>.
+         * </p>
+         * 
+         * @param c container to be traversed through to perform {@link AWTPrintLifecycle#setupPrint(double, double, int) setupPrint(..)} on all {@link AWTPrintLifecycle} elements.
+         * @param scaleMatX {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatX * width pixels
+         * @param scaleMatY {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatY * height pixels
+         * @param numSamples multisampling value: < 0 turns off, == 0 leaves as-is, > 0 enables using given num samples 
+         * @return the context
+         */
+        public static Context setupPrint(Container c, double scaleMatX, double scaleMatY, int numSamples) {
+            final Context t = new Context(c, scaleMatX, scaleMatY, numSamples);
+            t.setupPrint(c);
+            return t;
+        }
+
+        /**
+         * <p>
+         * See <a href="#usage">Usage</a>.
+         * </p>
+         */
+        public void releasePrint() {
+            count = AWTMisc.performAction(cont, AWTPrintLifecycle.class, releaseAction);
+        }
+
+        /**
+         * @return count of performed actions of last {@link #setupPrint(Container, double, double, int) setupPrint(..)} or {@link #releasePrint()}.
+         */
+        public int getCount() { return count; }
+        
+        private final Container cont;
+        private final double scaleMatX;
+        private final double scaleMatY;
+        private final int numSamples;
+        private int count;
+        
+        private final AWTMisc.ComponentAction setupAction = new AWTMisc.ComponentAction() {
+            @Override
+            public void run(Component c) {
+                ((AWTPrintLifecycle)c).setupPrint(scaleMatX, scaleMatY, numSamples);
+            } };
+        private final AWTMisc.ComponentAction releaseAction = new AWTMisc.ComponentAction() {
+            @Override
+            public void run(Component c) {
+                ((AWTPrintLifecycle)c).releasePrint();
+            } };
+
+        private Context(Container c, double scaleMatX, double scaleMatY, int numSamples) {
+            this.cont = c;
+            this.scaleMatX = scaleMatX;
+            this.scaleMatY = scaleMatY;
+            this.numSamples = numSamples;
+            this.count = 0;
+        }
+        private void setupPrint(Container c) {
+            count = AWTMisc.performAction(c, AWTPrintLifecycle.class, setupAction);
+        }
+    }
+}