package sjg.animation;import sjg.*;import sjg.xml.*;import java.awt.*;import java.awt.image.*;import java.util.*;import java.io.*;/** * Crops an image into {@link Frame frames} and {@link Animation animations} based on an XML-file. * * <p>The cropping takes place when the Cropper is constructed. * You must provide Cropper with an URL of the XML-file.</p> * * @author Christian Hvid */public class Cropper {    private Image bigImage;    private String bigImageFN = "";    private MediaTracker mt;    private SJGame sjg;    private Vector frames = new Vector();    private Vector animations = new Vector();    private void addAnimation(Animation animation) {        animations.addElement(animation);    }    private void addFrame(Frame frame) {        frames.addElement(frame);    }    public Frame getFrame(String name) {        for (Enumeration e = frames.elements(); e.hasMoreElements();) {            Frame f = (Frame) e.nextElement();            if (f.getName().equals(name)) return f;        }        throw new Error("Frame (" + name + ") not found in frame list");    }    public Animation getAnimation(String name) {        for (Enumeration e = animations.elements(); e.hasMoreElements();) {            Animation a = (Animation) e.nextElement();            if (a.getName().equals(name)) return a;        }        throw new Error("Animation (" + name + ") not found in animation list");    }    private Image getImageFromJar(SJGame sjg, String f) {        Image img;        try { 	    // Attempt to access JAR file first            DataInputStream in = new DataInputStream(sjg.getClass().getResourceAsStream(f));            byte[] data = new byte[in.available()];            in.readFully(data);            in.close();            img = Toolkit.getDefaultToolkit().createImage(data);        } catch (Exception e) { 	    // Get the image via Applet.GetImage            e.printStackTrace();            img = sjg.getImage(sjg.getCodeBase(), f);        }        mt.addImage(img, 0);        return img;    }    private Image getImageFromWeb(SJGame sjg, String fn) {        return sjg.getImage(sjg.getDocumentBase(), fn);    }    public Image cropFromJar(String fn, int x, int y, int w, int h) {        if (bigImageFN.equals(fn) == false)            bigImage = getImageFromJar(sjg, fn);        Image img =                sjg.createImage(new FilteredImageSource(bigImage.getSource(),                        new CropImageFilter(x, y, w, h)));        mt.addImage(img, 0);        return img;    }    public Image cropFromWeb(String fn, int x, int y, int w, int h) {        if (bigImageFN.equals(fn) == false)            bigImage = getImageFromWeb(sjg, fn);        Image img =                sjg.createImage(new FilteredImageSource(bigImage.getSource(),                        new CropImageFilter(x, y, w, h)));        mt.addImage(img, 0);        return img;    }    public Cropper(SJGame sjg, String fn) {        this.sjg = sjg;        sjg.showStatus("Cropping images ...");        mt = new MediaTracker(sjg);        sjg.showStatus("Cropping images (parsing xml) ...");        Element t = Parser.parse(sjg, fn).getRoot();        sjg.showStatus("Cropping images (interpretating xml) ...");        for (Enumeration e = t.elements("frames"); e.hasMoreElements();) {            Element t1 = (Element) e.nextElement();            for (Enumeration e2 = t1.elements("frame"); e2.hasMoreElements();) {                Element t2 = (Element) e2.nextElement();                String name = t2.getAttribute("name").getValue();                if (t.hasAttribute("name"))                    name = t1.getAttribute("name").getValue() + "." + name;                int x = t2.getAttribute("x").getIntValue();                int y = t2.getAttribute("y").getIntValue();                int width = t2.getAttribute("width").getIntValue();                int height = t2.getAttribute("height").getIntValue();                if (t1.hasAttribute("file"))                    addFrame(new Frame(name, cropFromJar(t1.getAttribute("file").getValue(), x, y, width, height), width, height));                else if (t1.hasAttribute("web"))                    addFrame(new Frame(name, cropFromWeb(t1.getAttribute("web").getValue(), x, y, width, height), width, height));            }        }        for (Enumeration e = t.elements("animations"); e.hasMoreElements();) {            Element t1 = (Element) e.nextElement();            for (Enumeration e2 = t1.elements("animation"); e2.hasMoreElements();) {                Element t2 = (Element) e2.nextElement();                String name = t2.getAttribute("name").getValue();                if (t1.hasAttribute("name"))                    name = t1.getAttribute("name").getValue() + "." + name;                boolean looped = true;                if (t2.hasAttribute("noloop"))                    looped = false;                Animation a = new Animation(name, looped);                StringTokenizer st = new StringTokenizer(t2.getContents());                for (; st.hasMoreTokens();) {                    String token = st.nextToken();                    a.addFrame(getFrame(token));                }                addAnimation(a);            }        }        sjg.showStatus("Cropping images (waiting for images) ...");        try {            mt.waitForID(0);        } catch (InterruptedException e) {            e.printStackTrace();        }        sjg.showStatus("");    }}