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jMonkeyEngine is a 3-D game engine for adventurous Java developers
/*
* Copyright (c) 2009-2023 jMonkeyEngine
* 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 'jMonkeyEngine' 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 com.jme3.system.awt;
import com.jme3.input.JoyInput;
import com.jme3.input.KeyInput;
import com.jme3.input.MouseInput;
import com.jme3.input.TouchInput;
import com.jme3.input.awt.AwtKeyInput;
import com.jme3.input.awt.AwtMouseInput;
import com.jme3.opencl.Context;
import com.jme3.renderer.Renderer;
import com.jme3.system.*;
import java.util.ArrayList;
import java.util.logging.Logger;
public class AwtPanelsContext implements JmeContext {
private static final Logger logger = Logger.getLogger(AwtPanelsContext.class.getName());
protected JmeContext actualContext;
protected AppSettings settings = new AppSettings(true);
protected SystemListener listener;
protected ArrayList panels = new ArrayList<>();
protected AwtPanel inputSource;
protected AwtMouseInput mouseInput = new AwtMouseInput();
protected AwtKeyInput keyInput = new AwtKeyInput();
protected boolean lastThrottleState = false;
private class AwtPanelsListener implements SystemListener {
@Override
public void initialize() {
initInThread();
}
@Override
public void reshape(int width, int height) {
logger.severe("reshape is not supported.");
}
@Override
public void rescale(float x, float y) {
logger.severe("rescale is not supported.");
}
@Override
public void update() {
updateInThread();
}
@Override
public void requestClose(boolean esc) {
// shouldn't happen
throw new IllegalStateException();
}
@Override
public void gainFocus() {
// shouldn't happen
throw new IllegalStateException();
}
@Override
public void loseFocus() {
// shouldn't happen
throw new IllegalStateException();
}
@Override
public void handleError(String errorMsg, Throwable t) {
listener.handleError(errorMsg, t);
}
@Override
public void destroy() {
destroyInThread();
}
}
public void setInputSource(AwtPanel panel){
if (!panels.contains(panel))
throw new IllegalArgumentException();
inputSource = panel;
mouseInput.setInputSource(panel);
keyInput.setInputSource(panel);
}
@Override
public Type getType() {
return Type.OffscreenSurface;
}
/**
* Accesses the listener that receives events related to this context.
*
* @return the pre-existing instance
*/
@Override
public SystemListener getSystemListener() {
return listener;
}
@Override
public void setSystemListener(SystemListener listener) {
this.listener = listener;
}
@Override
public AppSettings getSettings() {
return settings;
}
@Override
public Renderer getRenderer() {
return actualContext.getRenderer();
}
@Override
public MouseInput getMouseInput() {
return mouseInput;
}
@Override
public KeyInput getKeyInput() {
return keyInput;
}
@Override
public JoyInput getJoyInput() {
return null;
}
@Override
public TouchInput getTouchInput() {
return null;
}
@Override
public Timer getTimer() {
return actualContext.getTimer();
}
@Override
public boolean isCreated() {
return actualContext != null && actualContext.isCreated();
}
@Override
public boolean isRenderable() {
return actualContext != null && actualContext.isRenderable();
}
@Override
public Context getOpenCLContext() {
return actualContext.getOpenCLContext();
}
public AwtPanelsContext(){
}
public AwtPanel createPanel(PaintMode paintMode){
AwtPanel panel = new AwtPanel(paintMode);
panels.add(panel);
return panel;
}
public AwtPanel createPanel(PaintMode paintMode, boolean srgb){
AwtPanel panel = new AwtPanel(paintMode, srgb);
panels.add(panel);
return panel;
}
private void initInThread(){
listener.initialize();
}
private void updateInThread(){
// Check if throttle required
boolean needThrottle = true;
for (AwtPanel panel : panels){
if (panel.isActiveDrawing()){
needThrottle = false;
break;
}
}
if (lastThrottleState != needThrottle){
lastThrottleState = needThrottle;
if (lastThrottleState){
System.out.println("OGL: Throttling update loop.");
}else{
System.out.println("OGL: Ceased throttling update loop.");
}
}
if (needThrottle) {
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
}
}
listener.update();
for (AwtPanel panel : panels){
panel.onFrameEnd();
}
}
private void destroyInThread(){
listener.destroy();
}
@Override
public void setSettings(AppSettings settings) {
this.settings.copyFrom(settings);
this.settings.setRenderer(AppSettings.LWJGL_OPENGL2);
if (actualContext != null){
actualContext.setSettings(settings);
}
}
@Override
public void create(boolean waitFor) {
if (actualContext != null){
throw new IllegalStateException("Already created");
}
actualContext = JmeSystem.newContext(settings, Type.OffscreenSurface);
actualContext.setSystemListener(new AwtPanelsListener());
actualContext.create(waitFor);
}
@Override
public void destroy(boolean waitFor) {
if (actualContext == null)
throw new IllegalStateException("Not created");
// destroy parent context
actualContext.destroy(waitFor);
}
@Override
public void setTitle(String title) {
// not relevant, ignore
}
@Override
public void setAutoFlushFrames(boolean enabled) {
// not relevant, ignore
}
@Override
public void restart() {
// only relevant if changing pixel format.
}
/**
* Returns the height of the input panel.
*
* @return the height (in pixels)
*/
@Override
public int getFramebufferHeight() {
return inputSource.getHeight();
}
/**
* Returns the width of the input panel.
*
* @return the width (in pixels)
*/
@Override
public int getFramebufferWidth() {
return inputSource.getWidth();
}
/**
* Returns the screen X coordinate of the left edge of the input panel.
*
* @return the screen X coordinate
*/
@Override
public int getWindowXPosition() {
return inputSource.getX();
}
/**
* Returns the screen Y coordinate of the top edge of the input panel.
*
* @return the screen Y coordinate
*/
@Override
public int getWindowYPosition() {
return inputSource.getY();
}
}
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