/*
* Copyright (c) 2002-2008 LWJGL Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT OWNER 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.
*/
package org.lwjgl.opengl;
import java.awt.Canvas;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.Insets;
import java.awt.Container;
import java.awt.Component;
import java.awt.Point;
import java.awt.Window;
import java.nio.ByteBuffer;
import javax.swing.SwingUtilities;
import org.lwjgl.LWJGLException;
import org.lwjgl.LWJGLUtil;
/**
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @author kappaOne <one.kappa@gmail.com>
* @version $Revision$
* $Id$
*/
abstract class MacOSXCanvasPeerInfo extends MacOSXPeerInfo {
private final AWTSurfaceLock awt_surface = new AWTSurfaceLock();
public ByteBuffer window_handle;
protected MacOSXCanvasPeerInfo(PixelFormat pixel_format, ContextAttribs attribs, boolean support_pbuffer) throws LWJGLException {
super(pixel_format, attribs, true, true, support_pbuffer, true);
}
protected void initHandle(Canvas component) throws LWJGLException {
boolean forceCALayer = true;
boolean autoResizable = true; // set the CALayer to autoResize
String javaVersion = System.getProperty("java.version");
if (javaVersion.startsWith("1.5") || javaVersion.startsWith("1.6")) {
// On Java 7 and newer CALayer mode is the only way to use OpenGL with AWT
// therefore force it on all JVM's except for the older Java 5 and Java 6
// where the older cocoaViewRef NSView method maybe be available.
forceCALayer = false;
}
else if (javaVersion.startsWith("1.7")) {
autoResizable = false;
}
Insets insets = getInsets(component);
int top = insets != null ? insets.top : 0;
int left = insets != null ? insets.left : 0;
window_handle = nInitHandle(awt_surface.lockAndGetHandle(component), getHandle(), window_handle, forceCALayer, autoResizable, component.getX()-left, component.getY()-top);
if (javaVersion.startsWith("1.7")) {
// fix for CALayer position not covering Canvas due to a Java 7 bug
// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7172187
addComponentListener(component);
reSetLayerBounds(component, getHandle());
}
}
private void addComponentListener(final Canvas component) {
ComponentListener[] components = component.getComponentListeners();
// avoid adding duplicate listners by checking if one has already been added
for (int i = 0; i < components.length; i++) {
ComponentListener c = components[i];
if (c.toString() == "CanvasPeerInfoListener") {
return; // already contains the listner below return without adding
}
}
ComponentListener comp = new ComponentListener() {
public void componentHidden(ComponentEvent e) {
}
public void componentMoved(ComponentEvent e) {
//nSetLayerPosition(getHandle(), component.getX() - left, component.getY() - top);
reSetLayerBounds(component, getHandle());
}
public void componentResized(ComponentEvent e) {
//nSetLayerPosition(getHandle(), component.getX() - left, component.getY() - top);
reSetLayerBounds(component, getHandle());
}
public void componentShown(ComponentEvent e) {
}
public String toString() {
return "CanvasPeerInfoListener";
}
};
component.addComponentListener(comp);
}
private static native ByteBuffer nInitHandle(ByteBuffer surface_buffer, ByteBuffer peer_info_handle, ByteBuffer window_handle, boolean forceCALayer, boolean autoResizable, int x, int y) throws LWJGLException;
private static native void nSetLayerPosition(ByteBuffer peer_info_handle, int x, int y);
private static native void nSetLayerBounds(ByteBuffer peer_info_handle, int x, int y, int width, int height);
/**
* fix for CALayer position not covering Canvas due to a Java 7 bug
* {@link http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7172187}
* @param component
* @param peer_info_handle
*/
private static void reSetLayerBounds(Canvas component, ByteBuffer peer_info_handle) {
// report the root parent (peer).
Component peer = SwingUtilities.getRoot(component);
Point rtLoc = SwingUtilities.convertPoint(component.getParent(), component.getLocation(), peer);
int x = (int) rtLoc.getX(), y = (int) rtLoc.getY();
Insets insets = getInsets(component);
x -= insets != null ? insets.left : 0;
y -= insets != null ? insets.top : 0;
// http://hg.openjdk.java.net/jdk8/awt/jdk/rev/65d874d16d59
y = (int) peer.getHeight() - y - (int) component.getHeight();
nSetLayerBounds(peer_info_handle, x, y, component.getWidth(), component.getHeight());
}
protected void doUnlock() throws LWJGLException {
awt_surface.unlock();
}
/**
* @return rootpane insets (peer insets) values.
*/
private static Insets getInsets(Canvas component) {
Container c = SwingUtilities.getRootPane(component);
if(c != null) {
return c.getInsets();
} else {
return new Insets(0, 0, 0, 0);
}
}
}