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package com.vaadin.tests.tickets;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
import com.vaadin.server.DownloadStream;
import com.vaadin.server.ExternalResource;
import com.vaadin.server.RequestHandler;
import com.vaadin.server.VaadinSession;
import com.vaadin.server.WrappedRequest;
import com.vaadin.server.WrappedResponse;
import com.vaadin.ui.Button;
import com.vaadin.ui.CheckBox;
import com.vaadin.ui.Label;
import com.vaadin.ui.Link;
import com.vaadin.ui.UI.LegacyWindow;
public class Ticket2292 extends com.vaadin.Application implements
RequestHandler {
@Override
public void init() {
final LegacyWindow main = new LegacyWindow(getClass().getName()
.substring(getClass().getName().lastIndexOf(".") + 1));
setMainWindow(main);
ExternalResource icon = new ExternalResource("./icon.png");
main.addComponent(new Label(
"Note, run with trailing slash in url to have a working icon. Icon is built by servlet with a slow method, so it will show the bug (components not firing requestLayout)"));
Button b = new Button();
main.addComponent(b);
b.setIcon(icon);
CheckBox checkBox = new CheckBox();
main.addComponent(checkBox);
checkBox.setIcon(icon);
Link l = new Link("l", icon);
main.addComponent(l);
VaadinSession.getCurrent().addRequestHandler(this);
}
@Override
public boolean handleRequest(VaadinSession session,
WrappedRequest request, WrappedResponse response)
throws IOException {
String relativeUri = request.getRequestPathInfo();
if (!relativeUri.contains("icon.png")) {
return false;
}
// be slow to show bug
try {
Thread.sleep(2000);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
BufferedImage image = new BufferedImage(200, 200,
BufferedImage.TYPE_INT_RGB);
Graphics drawable = image.getGraphics();
drawable.setColor(Color.lightGray);
drawable.fillRect(0, 0, 200, 200);
drawable.setColor(Color.yellow);
drawable.fillOval(25, 25, 150, 150);
drawable.setColor(Color.blue);
drawable.drawRect(0, 0, 199, 199);
// Use the parameter to create dynamic content.
drawable.setColor(Color.black);
drawable.drawString("Tex", 75, 100);
try {
// Write the image to a buffer.
ByteArrayOutputStream imagebuffer = new ByteArrayOutputStream();
ImageIO.write(image, "png", imagebuffer);
// Return a stream from the buffer.
ByteArrayInputStream istream = new ByteArrayInputStream(
imagebuffer.toByteArray());
new DownloadStream(istream, null, null).writeResponse(request,
response);
return true;
} catch (IOException e) {
return false;
}
}
}
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