qt5base-lts/tests/manual/repaint/tableview/main.cpp

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** This file is part of the test suite of the Qt Toolkit.
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#include <QtWidgets>
#include "../shared/shared.h"

class CellWidget : public QWidget
{
public:
    CellWidget (QWidget *parent = 0) : QWidget(parent) { }
    void paintEvent(QPaintEvent * event)
    {
        static int value = 200;
        value = (value + 41) % 205 + 50;
        QPainter p(this);
        p.fillRect(event->rect(), QColor::fromHsv(100, 255, value));
    }
};

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    QTableWidget tableWidget;
//    tableWidget.setAttribute(Qt::WA_StaticContents);
    tableWidget.viewport()->setAttribute(Qt::WA_StaticContents);
    tableWidget.setRowCount(15);
    tableWidget.setColumnCount(4);
    for (int row = 0; row  < 15; ++row)
    for (int col = 0; col  < 4; ++col)
//        tableWidget.setCellWidget(row, col, new StaticWidget());
       tableWidget.setCellWidget(row, col, new CellWidget());
    tableWidget.resize(400, 600);
    tableWidget.show();
    
    
    return app.exec();
}