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/*************************************************************************
*
* $RCSfile: SpriteRunner.java,v $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
// UNO
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
import com.sun.star.uno.AnyConverter;
import com.sun.star.uno.IQueryInterface;
import com.sun.star.lang.XInitialization;
import com.sun.star.lib.uno.helper.WeakBase;
// OOo AWT
import com.sun.star.awt.*;
// Canvas
import com.sun.star.rendering.*;
// Java AWT
import java.awt.*;
import java.awt.geom.*;
//
// HOWTO get a Graphics2D from a window
//
// import javax.swing.*;
// import java.awt.*;
// import java.awt.geom.*;
// public class Stroke1 extends JFrame {
// Stroke drawingStroke = new BasicStroke(5);
// Rectangle2D rect =
// new Rectangle2D.Double(20, 40, 100, 40);
// public void paint(Graphics g) {
// Graphics2D g2d = (Graphics2D)g;
// g2d.setStroke(drawingStroke);
// g2d.draw(rect);
// }
// public static void main(String args[]) {
// JFrame frame = new Stroke1();
// frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
// frame.setSize(200, 100);
// frame.show();
// }
// }
public class SpriteRunner
extends Thread
{
private CanvasSprite sprite;
private XAnimation spriteAnimation;
private JavaCanvas canvas;
private double startTime;
private double currentSpeed;
private double currentT;
private boolean animationActive;
private boolean stayAlive;
//----------------------------------------------------------------------------------
public SpriteRunner( CanvasSprite _sprite, XAnimation _animation, JavaCanvas _canvas )
{
CanvasUtils.printLog( "SpriteRunner constructor called!" );
sprite = _sprite;
spriteAnimation = _animation;
canvas = _canvas;
startTime = 0.0;
currentSpeed = 0.0;
currentT = 0.0;
animationActive = false;
stayAlive = true;
// Set priority to lower-than-normal, as this thread runs the
// animation in a busy loop.
setPriority( MIN_PRIORITY );
}
//----------------------------------------------------------------------------------
//
// Thread
// ======
//
// Overriding
//
public void run()
{
// perform the animation rendering (as fast as possible, for now)
while( stayAlive )
{
while( animationActive )
{
// to determine the current animation step to render, calc the
// elapsed time since this animation was started
double elapsedTime = getCurrentTime() - startTime;
// the frame to render is determined by mapping the cycle
// duration (currentSpeed) to the [0,1] range of the animation.
currentT = (elapsedTime % currentSpeed) / currentSpeed;
// delegate animation rendering to SpriteCanvas, as
// only this instance can enforce consistency (on-time
// saving of background etc.)
canvas.renderAnimation( sprite, spriteAnimation, currentT );
// TODO: Consolidate _all_ sprites per canvas into one
// thread, call updateScreen() only after all sprites
// have been processed.
//Make changes visible
canvas.updateScreen( false );
// TODO: Evaluate vs. setPriority and other means
// try
// {
// // give other tasks some time to breathe (10ms - this is only meant symbolically)
// sleep(10);
// } catch( InterruptedException e ) { }
}
// wait until animation is activated again
try
{
wait();
}
catch( InterruptedException e ) { }
catch( IllegalMonitorStateException e ) { }
}
}
public synchronized void startAnimation( double speed )
{
resetAnimation();
currentSpeed = speed;
// start us, if not done already
if( !isAlive() )
start();
// enable animation thread
animationActive = true;
try
{
notify();
} catch( IllegalMonitorStateException e ) { }
}
public synchronized void stopAnimation()
{
// stop animation after the current frame has been completely
// rendered
animationActive = false;
}
public synchronized void resetAnimation()
{
startTime = getCurrentTime();
}
public synchronized boolean isAnimationActive()
{
return animationActive;
}
public synchronized void quit()
{
stayAlive = false;
stopAnimation();
}
public synchronized double getCurrentT()
{
return currentT;
}
//----------------------------------------------------------------------------------
// helper
static double getCurrentTime()
{
// determine current time in seconds
java.util.Calendar cal = new java.util.GregorianCalendar();
return cal.getTimeInMillis() / 1000.0;
}
}
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