C++/Qt/QX11EmbedWidget

Using QX11EmbedWidget

<source lang="cpp"> /****************************************************************************

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1. ifndef EMBEDWIDGET_H
2. define EMBEDWIDGET_H
3. include <QRadialGradient>
4. include <QSize>
5. include <QX11EmbedWidget>

class QPaintEvent; class EmbedWidget : public QX11EmbedWidget {

   Q_OBJECT

public:

   EmbedWidget(QWidget *parent = 0);
   QSize sizeHint() const;

protected:

   void paintEvent(QPaintEvent *event);

private:

   QRadialGradient gradient;

};

1. endif

1. include <QtGui>
2. include "embedwidget.h"

EmbedWidget::EmbedWidget(QWidget *parent)

   : QX11EmbedWidget(parent)

{

   gradient = QRadialGradient(100, 100, 90, 60, 60);
   gradient.setColorAt(0.0, Qt::white);
   gradient.setColorAt(0.9, QColor(192, 192, 255));
   gradient.setColorAt(1.0, QColor(0, 32, 64));

} QSize EmbedWidget::sizeHint() const {

   return QSize(200, 200);

} void EmbedWidget::paintEvent(QPaintEvent *event) {

   QPainter painter;
   painter.begin(this);
   painter.setRenderHint(QPainter::Antialiasing);
   painter.fillRect(event->rect(), QBrush(gradient));
   painter.end();

}

1. include <QApplication>
2. include "embedwidget.h"

int main(int argc, char *argv[]) {

   QApplication app(argc, argv);
   if (app.arguments().count() != 2) {
       qFatal("Error - expected window id as argument");
       return 1;
   }
   QString windowId(app.arguments()[1]);
   EmbedWidget window;
   window.embedInto(windowId.toULong());
   window.show();
   return app.exec();

}

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