Custom widget in QScrollArea

Hi,

i create a widget in a QScrollArea that should fill the entire widget with red color, but when i scroll to the right, i see that it's not filled completely. The frame is drawn correctly. Here is my code:

Code:

---

#include <QMainWindow>
#include <QPainter>
#include <QScrollArea>
 
class MyWidget : public QWidget
{
public:
 
   virtual void paintEvent(QPaintEvent* e)
   {
      QPainter painter(this);
      painter.fillRect(geometry(), Qt::red);
   }
};
 
class ScrollTest : public QMainWindow
{
Q_OBJECT
 
public:
   ScrollTest(QWidget *parent = 0) : QMainWindow(parent)
   {
      setGeometry(QRect(100,100,230,230));
 
      MyWidget* widget = new MyWidget;
      widget->setGeometry(QRect(0,0, 250, 250));
      widget->setStyleSheet("border: 3px solid blue;");
 
      QScrollArea* area = new QScrollArea(this);
      area->setGeometry(QRect(0,0, 200, 200));
      area->setWidget(widget);
   }
};

---

This is a simple test dialog. The real widget is an image viewer/editor. I tried QLabel to draw the image, but this is very slow when you zoom in with large images. What i want to do is to zoom and scroll through the image.

What's wrong?

Have you tried filling (0, 0, width, height)?

Maybe geometry() has negative x/y

Cheers,
_

That's it! :) Thank you!