Repaint Event

[Seema Rao]

Hi all,

I have a problem with respect to paint event, I have a class ToolButton derived from QToolButton, here is its paintEvent implementation. Even though I set the instance of ToolButton as, setGeometry(10,10,60,60), I get very less reading for width and height in the paint Event, am I doing anything wrong here??

void ToolButton::paintEvent(QPaintEvent *e)
{
int co_x = (int)x() - (width() / 2);
int co_y = (int)y() - (height() / 2);

QPainter painter(this);
QPixmap mypix;
mypix.load(":images/f1u7.png");
mypix=mypix.scaled (width(),height(),Qt::IgnoreAspectRatio);
cout<<co_x<<","<<co_y<<","<<width()<<","<<height()<<endl;
painter.drawPixmap(co_x,co_y,width(),height(), mypix);
}

Thanks in advance,
Seema Rao

[wysota]

Can you show the class declaration and constructor? BTW. It doesn't make much sense to inherit QToolButton if you don't use its paintEvent. Maybe you should inherit QAbstractButton instead?

[Seema Rao]

#include <QToolButton>

class ToolButton: public QToolButton
{

public:
ToolButton(QWidget *parent=0);
private:

QString str1;

protected:
void paintEvent(QPaintEvent *e);
};
//here is the constructor

ToolButton::ToolButton(QWidget *parent): QToolButton(parent){}

[wysota]

And what's wrong exactly? And why can't you use QToolButton and its setIcon() method instead of subclassing?