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/**
* 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 javax.media.opengl.awt;
import javax.media.opengl.GLAutoDrawable;
import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.Graphics2D;
import jogamp.nativewindow.awt.AWTMisc;
/**
* Interface describing print lifecycle to support AWT printing
* on AWT {@link GLAutoDrawable}s.
* <a name="impl"><h5>Implementations</h5></a>
* <p>
* Implementing {@link 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(Graphics2D, double, double) 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, Graphics2D, double, double) Context.setupPrint(..)}:
* <pre>
* Graphics2D g2d;
* Frame frame;
* double scaleGLMatXY = 72.0/glDPI;
* ...
final AWTPrintLifecycle.Context ctx = AWTPrintLifecycle.Context.setupPrint(frame, g2d, scaleGLMatXY, scaleGLMatXY);
try {
AWTEDTExecutor.singleton.invoke(true, new Runnable() {
public void run() {
frame.printAll(g2d);
} });
} finally {
ctx.releasePrint();
}
*
* </pre>
* </p>
*/
public interface AWTPrintLifecycle {
/**
* Shall be called before {@link Component#print(Graphics)}.
* <p>
* See <a href="#usage">Usage</a>.
* </p>
* @param g2d the {@link Graphics2D} instance, which will be used for printing.
* @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
*/
void setupPrint(Graphics2D g2d, double scaleMatX, double scaleMatY);
/**
* Shall be called after very last {@link Component#print(Graphics)}.
* <p>
* See <a href="#usage">Usage</a>.
* </p>
*/
void releasePrint();
/**
* Convenient {@link AWTPrintLifecycle} context simplifying calling {@link AWTPrintLifecycle#setupPrint(Graphics2D, double, double) 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(Graphics2D, double, double) setupPrint(..)} on all {@link AWTPrintLifecycle} elements.
* @param g2d the {@link Graphics2D} instance, which will be used for printing.
* @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
* @return the context
*/
public static Context setupPrint(Container c, Graphics2D g2d, double scaleMatX, double scaleMatY) {
final Context t = new Context(c, g2d, scaleMatX, scaleMatY);
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, Graphics2D, double, double) setupPrint(..)} or {@link #releasePrint()}.
*/
public int getCount() { return count; }
private final Container cont;
private final Graphics2D g2d;
private final double scaleMatX;
private final double scaleMatY;
private int count;
private final AWTMisc.ComponentAction setupAction = new AWTMisc.ComponentAction() {
@Override
public void run(Component c) {
((AWTPrintLifecycle)c).setupPrint(g2d, scaleMatX, scaleMatY);
} };
private final AWTMisc.ComponentAction releaseAction = new AWTMisc.ComponentAction() {
@Override
public void run(Component c) {
((AWTPrintLifecycle)c).releasePrint();
} };
private Context(Container c, Graphics2D g2d, double scaleMatX, double scaleMatY) {
this.cont = c;
this.g2d = g2d;
this.scaleMatX = scaleMatX;
this.scaleMatY = scaleMatY;
this.count = 0;
}
private void setupPrint(Container c) {
count = AWTMisc.performAction(c, AWTPrintLifecycle.class, setupAction);
}
}
}
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