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rfr

Alors voici le code torché à la va-vite ... hum ...

Code:

package be.erefer.Html2Png;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.AbstractHandler;
class RequestHandler extends AbstractHandler {
private Main m = null;
public RequestHandler(Main m) {
this.m = m;
}
public void handle(String arg0, HttpServletRequest arg1,
HttpServletResponse arg2, int arg3) throws IOException,
ServletException {
synchronized (this) {
String url = arg1.getParameter("url");
String width = arg1.getParameter("width");
String height = arg1.getParameter("height");
int x;
int y;
if (url == null || width == null || height == null) {
throw new ServletException("Invalid Parameters");
}
try {
x = Integer.parseInt(width);
y = Integer.parseInt(height);
} catch (Exception e) {
throw new ServletException("Invalid Parameters");
}
m.SetSize(x, y);
Object synch = new Object();
m.setSynchObject(synch);
m.launchImageCapture(url);
synchronized(synch) {
try {
synch.wait();
} catch (Exception e) {
new ServletException("Internal Error");
}
}
if (m.getRequestImageData() == null) {
throw new ServletException("No image generated");
}
ImageLoader il = new ImageLoader();
il.data = new ImageData[] {m.getRequestImageData()};
ByteArrayOutputStream imgb = new ByteArrayOutputStream();
il.save(imgb, SWT.IMAGE_PNG);
//imgb.flush();
arg2.setStatus(HttpServletResponse.SC_OK);
arg2.setContentType("image/png");
arg2.setContentLength(imgb.size());
byte[] data = imgb.toByteArray();
arg2.getOutputStream().write(data);
arg2.getOutputStream().flush();
}
}
}
public class Main {
private Browser b = null;
private Display d;
private Shell main;
private int requestedWidth;
private int requestedHeight;
private Object synchObject;
private ImageData requestImageData;
private String requestUrl;
public void SetSize(int x, int y) {
requestedHeight = y;
requestedWidth = x;
}
public void setSynchObject(Object o) {
synchObject = o;
}
public ImageData getRequestImageData() {
return requestImageData;
}
public void setRequestImageData(ImageData id) {
requestImageData = id;
}
public void loadCompleted() {
FrameGrabber fg = new FrameGrabber(this, main, b);
d.timerExec(2000, fg);
}
public void imageCapture() {
main.setSize(requestedWidth, requestedHeight);
main.setActive();
b.setData(synchObject);
b.setUrl(requestUrl);
}
public void launchImageCapture(String url) {
requestUrl = url;
d.syncExec(new Runnable() {
public void run() {
imageCapture();
}
});
}
public void run() {
Server server = new Server(9090);
server.setHandler(new RequestHandler(this));
try {
server.start();
} catch (Exception e) {
throw new RuntimeException("Error in server");
}
d = new Display();
main = new Shell(d, SWT.NO_TRIM);
main.setLayout(new FillLayout());
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 1;
main.setLayout(gridLayout);
GridData data = new GridData();
data.horizontalAlignment = GridData.FILL;
data.verticalAlignment = GridData.FILL;
data.grabExcessHorizontalSpace = true;
data.grabExcessVerticalSpace = true;
main.setSize(1024, 768);
main.setLocation(0, 0);
b = new Browser(main, SWT.MOZILLA);
b.setLayoutData(data);
main.open();
/*
b.addTitleListener(new TitleListener() {
public void changed(TitleEvent event) {
loadCompleted();
}
});
*/
//b.setText("<html><head></head><body>a</body></html>");
if (!b.execute("window.scrollbars.visible=false;")) {
System.out.println("Script not executed");
}
b.addProgressListener(new ProgressListener() {
public void changed(ProgressEvent event) {
}
public void completed(ProgressEvent event) {
if (requestUrl == null) {
return;
}
loadCompleted();
b.execute("window.scrollbars.visible=false;");
}
});
while (!main.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
main.dispose();
d.dispose();
}
public static void main(String s[]) {
Main m = new Main();
m.run();
}
}
class FrameGrabber implements Runnable {
private Browser b;
private Shell s;
private Main m;
public FrameGrabber(Main m, Shell s, Browser b) {
this.b = b;
this.s = s;
this.m = m;
}
public void run() {
int xDelta = 0;
int yDelta = 0;
s.setActive();
b.redraw();
if (b.getVerticalBar() == null) {
System.out.println("No VScroll");
} else {
System.out.println("VScroll");
}
if (b.getHorizontalBar() == null) {
System.out.println("No HScroll");
} else {
System.out.println("HScroll");
}
if (b.getHorizontalBar() != null && b.getHorizontalBar().isVisible()) {
yDelta = b.getHorizontalBar().getSize().y;
System.out.println("yDelta = "+yDelta);
}
if (b.getVerticalBar() != null && b.getVerticalBar().isVisible()) {
xDelta = b.getVerticalBar().getSize().x;
System.out.println("xDelta = "+xDelta);
}
b.update();
GC browserGC = new GC(b);
Image img = new Image(Display.getCurrent(), b.getClientArea().width - xDelta, b.getClientArea().height-yDelta);
browserGC.copyArea(img, 0, 0);
m.setRequestImageData(img.getImageData());
browserGC.dispose();
synchronized(b.getData()) {
b.getData().notify();
}
}
}