Converting simple QWebView example to Java

Question

How would you convert the following simple QT example in C using the QWebView widget to Java (QtJambi):

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWebView view;
    view.load(QUrl("http://www.trolltech.com/"));
    view.show();
    return app.exec();
}

(Located at: http://doc.qt.nokia.com/qq/qq26-webplugin.html#qtwebkitbasics)

I could be mistaken but I think I recall such an example being present in the Qt-Jambi javadoc last year, but I can't find it any more, when I go to http://qt-jambi.org/documentation it says "Apidoc of newest built (sic) is not still working"

The Java API docs do not build anymore since Qt and the 'qdoc3' tool used produce them had its Java/javadoc support removed. I think this was because the stewards (at the time) Nokia no longer supported Java and did not have the time or interest to maintain it along with the C++ business requirements. But there is a strategy to create an alternative mechansim to produce them once the task priority makes the top of the backlog list. — Darryl Miles, Oct 18 '12 at 22:42

score 2 · Accepted Answer · answered Sep 06 '12 at 06:37

The API in Qt Jambi is very similar to the original Qt API so the samples can be translated almost directly.

So the C++ version

QWebView view;
view.load(QUrl("http://www.trolltech.com/"));

Is translated to the following in Java

QWebView view = new QWebView();
view.load(new QUrl("http://www.trolltech.com/"));

The rest of the application (creating the main window, running the app) can be found in the hello world tutorial.

I don't have a working environment on my home mac, but this sample should work:

import com.trolltech.qt.core.*;
import com.trolltech.qt.gui.*;
import com.trolltech.qt.webkit.*;

public class SO12093494 extends QMainWindow {

   private QWebView webView;

   public SO12093494() { this(null); }
   public SO12093494(QWidget parent) {
      super(parent);

      webView = new QWebView();
      setCentralWidget(webView);
   }

   public void loadUrl(String url) {
      webView.load(new QUrl(url));
   }

   public static void main(String[] args) {
      QApplication.initialize(args);

      SO12093494 app = new SO12093494();
      app.loadUrl("http://www.trolltech.com");
      app.show();

      QApplication.exec();
   }
}

Converting simple QWebView example to Java

1 Answers1