/*
Copyright 1999-2003 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.flex.forks.batik.apps.slideshow;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Vector;
import javax.swing.JComponent;
import javax.swing.JWindow;
import org.apache.flex.forks.batik.bridge.BridgeContext;
import org.apache.flex.forks.batik.bridge.DocumentLoader;
import org.apache.flex.forks.batik.bridge.GVTBuilder;
import org.apache.flex.forks.batik.bridge.UserAgent;
import org.apache.flex.forks.batik.bridge.UserAgentAdapter;
import org.apache.flex.forks.batik.bridge.ViewBox;
import org.apache.flex.forks.batik.gvt.GraphicsNode;
import org.apache.flex.forks.batik.gvt.renderer.StaticRenderer;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.flex.forks.dom.svg.SVGDocument;
public class Main extends JComponent {
StaticRenderer renderer;
UserAgent userAgent;
DocumentLoader loader;
BridgeContext ctx;
BufferedImage image;
BufferedImage display;
File [] files;
static int duration = 3000;
static int frameDelay = duration+7000;
boolean done = false;
public Main(File []files, Dimension size) {
setBackground(Color.black);
this.files = files;
renderer = new StaticRenderer();
userAgent = new UserAgentAdapter();
loader = new DocumentLoader(userAgent);
ctx = new BridgeContext(userAgent, loader);
if (size == null) {
size = Toolkit.getDefaultToolkit().getScreenSize();
}
setPreferredSize(size);
setDoubleBuffered(false);
addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent me) {
if (done)
System.exit(0);
else
togglePause();
}
});
size.width += 2;
size.height += 2;
display = new BufferedImage(size.width, size.height,
BufferedImage.TYPE_INT_BGR);
Thread t = new RenderThread();
t.start();
JWindow w = new JWindow();
w.setBackground(Color.black);
w.getContentPane().setBackground(Color.black);
w.getContentPane().add(this);
w.pack();
w.setLocation(new Point(-1, -1));
w.setVisible(true);
}
class RenderThread extends Thread {
public void run() {
renderer.setDoubleBuffered(true);
for (int i=0; i<files.length; i++) {
GraphicsNode gvtRoot = null;
GVTBuilder builder = new GVTBuilder();
try {
System.out.println("Reading: " + files[i]);
Document svgDoc = loader.loadDocument
(files[i].toURL().toString());
System.out.println("Building: " + files[i]);
gvtRoot = builder.build(ctx, svgDoc);
System.out.println("Rendering: " + files[i]);
renderer.setTree(gvtRoot);
Element elt = ((SVGDocument)svgDoc).getRootElement();
renderer.setTransform
(ViewBox.getViewTransform
(null, elt, display.getWidth(), display.getHeight()));
renderer.updateOffScreen(display.getWidth(),
display.getHeight());
Rectangle r = new Rectangle(0, 0,
display.getWidth(),
display.getHeight());
renderer.repaint(r);
System.out.println("Painting: " + files[i]);
image = renderer.getOffScreen();
setTransition(image);
} catch (Exception ex) {
ex.printStackTrace();
}
}
if (transitionThread != null) {
try {
transitionThread.join();
} catch (InterruptedException ie) { }
done = true;
setCursor(new Cursor(Cursor.WAIT_CURSOR));
}
}
}
Thread transitionThread = null;
public void setTransition(BufferedImage newImg) {
synchronized (this) {
while (transitionThread != null) {
try {
wait();
} catch (InterruptedException ie) { }
}
transitionThread = new TransitionThread(newImg);
transitionThread.start();
}
}
long startLastTransition=0;
boolean paused = false;
public void togglePause() {
synchronized(this) {
paused = !paused;
Cursor c;
if (paused) {
c = new Cursor(Cursor.WAIT_CURSOR);
} else {
c = new Cursor(Cursor.DEFAULT_CURSOR);
if (transitionThread != null) {
synchronized (transitionThread) {
transitionThread.notifyAll();
}
}
}
setCursor(c);
}
}
class TransitionThread extends Thread {
BufferedImage src;
int blockw = 75;
int blockh = 75;
public TransitionThread(BufferedImage bi) {
src = bi;
}
public void run() {
int xblocks = (display.getWidth()+blockw-1)/blockw;
int yblocks = (display.getHeight()+blockh-1)/blockh;
int nblocks = xblocks*yblocks;
int tblock = duration/nblocks;
Point [] rects = new Point[nblocks];
for (int y=0; y<yblocks; y++)
for (int x=0; x<xblocks; x++)
rects[y*xblocks+x] = new Point(x, y);
Graphics2D g2d = display.createGraphics();
g2d.setColor(new Color(0,0,0));
long currTrans = System.currentTimeMillis();
while ((currTrans-startLastTransition) < frameDelay) {
try {
long stime = frameDelay-(currTrans-startLastTransition);
if (stime > 500) {
System.gc();
currTrans = System.currentTimeMillis();
stime = frameDelay-(currTrans-startLastTransition);
}
if (stime > 0) sleep(stime);
} catch (InterruptedException ie) { }
currTrans = System.currentTimeMillis();
}
synchronized(this) {
while (paused) {
try {
wait();
} catch (InterruptedException ie) { }
}
}
long last = startLastTransition = System.currentTimeMillis();
for (int i=0; i<rects.length; i++) {
int idx = (int)(Math.random()*(rects.length-i));
Point pt = rects[idx];
for (int j=idx+1; j<rects.length-i;j++)
rects[j-1] = rects[j];
int x=pt.x*blockw, y=pt.y*blockh;
int w=blockw, h = blockh;
if (x+w > src.getWidth()) w = src.getWidth()-x;
if (y+h > src.getHeight()) h = src.getHeight()-y;
synchronized (display) {
g2d.fillRect(x, y, w, h);
BufferedImage sub;
sub = src.getSubimage(x, y, w, h);
g2d.drawImage(sub, null, x, y);
}
repaint(x, y, w, h);
long current = System.currentTimeMillis();
try {
long dt = current-last;
if (dt < tblock)
sleep(tblock-dt);
} catch (InterruptedException ie) { }
last = current;
}
synchronized (Main.this) {
transitionThread = null;
Main.this.notifyAll();
}
}
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D)g;
if (display == null) return;
// System.out.println("Drawing Image: " + display);
g2d.drawImage(display, null, 0, 0);
}
public static void readFileList(String file, Vector fileVec) {
BufferedReader br;
try {
br = new BufferedReader(new FileReader(file));
} catch(FileNotFoundException fnfe) {
System.err.println("Unable to open file-list: " + file);
return;
}
try {
URL flURL = new File(file).toURL();
String line;
while ((line = br.readLine()) != null) {
String str = line;
int idx = str.indexOf('#');
if (idx != -1)
str = str.substring(0, idx);
str.trim();
if (str.length() == 0)
continue;
try {
URL imgURL = new URL(flURL, str);
fileVec.add(imgURL.getFile());
} catch (MalformedURLException mue) {
System.err.println("Can't make sense of line:\n " + line);
}
}
} catch (IOException ioe) {
System.err.println("Error while reading file-list: " + file);
}
}
public static void main(String []args) {
Vector fileVec = new Vector();
Dimension d = null;
if (args.length == 0) {
showUsage();
return;
}
for (int i=0; i<args.length; i++) {
if ((args[i].equals("-h")) ||
(args[i].equals("-help")) ||
(args[i].equals("--help"))){
showUsage();
return;
} else if (args[i].equals("--")) {
i++;
while(i < args.length) {
fileVec.add(args[i++]);
}
break;
} else if ((args[i].equals("-fl"))||
(args[i].equals("--file-list"))) {
if (i+1 == args.length) {
System.err.println
("Must provide name of file list file after " +
args[i]);
break;
}
readFileList(args[i+1], fileVec);
i++;
} else if ((args[i].equals("-ft"))||
(args[i].equals("--frame-time"))) {
if (i+1 == args.length) {
System.err.println
("Must provide time in millis after " + args[i]);
break;
}
try {
frameDelay = Integer.decode(args[i+1]).intValue();
i++;
} catch (NumberFormatException nfe) {
System.err.println
("Can't parse frame time: " + args[i+1]);
}
} else if ((args[i].equals("-tt"))||
(args[i].equals("--transition-time"))) {
if (i+1 == args.length) {
System.err.println
("Must provide time in millis after " + args[i]);
break;
}
try {
duration = Integer.decode(args[i+1]).intValue();
i++;
} catch (NumberFormatException nfe) {
System.err.println
("Can't parse transition time: " + args[i+1]);
}
} else if ((args[i].equals("-ws"))||
(args[i].equals("--window-size"))) {
if (i+1 == args.length) {
System.err.println
("Must provide window size [w,h] after " + args[i]);
break;
}
try {
int idx = args[i+1].indexOf(',');
int w, h;
if (idx == -1)
w = h = Integer.decode(args[i+1]).intValue();
else {
String wStr = args[i+1].substring(0,idx);
String hStr = args[i+1].substring(idx+1);
w = Integer.decode(wStr).intValue();
h = Integer.decode(hStr).intValue();
}
d = new Dimension(w, h);
i++;
} catch (NumberFormatException nfe) {
System.err.println
("Can't parse window size: " + args[i+1]);
}
} else
fileVec.add(args[i]);
}
File [] files = new File[fileVec.size()];
for (int i=0; i<fileVec.size(); i++) {
try {
files[i] = new File((String)fileVec.get(i));
} catch (Exception ex) {
ex.printStackTrace();
}
}
new Main(files, d);
}
public static void showUsage() {
System.out.println
("Options:\n" +
" -- : Remaining args are file names\n" +
" -fl <file>\n" +
" --file-list <file> : file contains list of images to\n" +
" show one per line\n" +
" -ws <width>[,<height>]\n" +
" -window-size <width>[,<height>] : Set the size of slideshow window\n" +
" defaults to full screen\n" +
" -ft <int>\n" +
" --frame-time <int> : Amount of time in millisecs to\n" +
" show each frame.\n" +
" Includes transition time.\n" +
" -tt <int>\n" +
" --transition-time <int> : Amount of time in millisecs to\n" +
" transition between frames.\n" +
" <file> : SVG file to display");
}
}