// OverviewPanel.cpp: Implementierung der Klasse COverviewPanel.////////////////////////////////////////////////////////////////////////#include "OverviewPanel.h"#include <qpainter.h>#include <qcanvas.h>//////////////////////////////////////////////////////////////////////// Konstruktion/Destruktion//////////////////////////////////////////////////////////////////////COverviewPanel::COverviewPanel(QWidget *parent, const char *name){ // parent is a QWidget child of a QTabWidget bool is = isShown(); // always false in constructor}void COverviewPanel::paintEvent(QPaintEvent * ){ QPainter paint( this ); paint.setPen( Qt::blue ); QRect r = this->rect(); // This rect has arbitrary dimensions and has no relation to the size // given in QDesigner paint.drawText( r, AlignCenter, "The Text" ); }QSizePolicy COverviewPanel::sizePolicy() const{ return QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );}