ff1039c217
According to QUIP-18 [1], all tests file should be LicenseRef-Qt-Commercial OR GPL-3.0-only [1]: https://contribute.qt-project.org/quips/18 Pick-to: 6.7 Task-number: QTBUG-121787 Change-Id: I9657df5d660820e56c96d511ea49d321c54682e8 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
|
|
|
|
#include <QWidget>
|
|
#include <QHBoxLayout>
|
|
#include <QApplication>
|
|
#include <QPainter>
|
|
#include <QImage>
|
|
#include <QImageReader>
|
|
|
|
class MyWidget : public QWidget
|
|
{
|
|
public:
|
|
MyWidget(QWidget * parent, const QString &imagefname, bool scaleImage)
|
|
: QWidget(parent), fileName(imagefname), scale(scaleImage)
|
|
{
|
|
|
|
}
|
|
|
|
void paintEvent(QPaintEvent * /*event*/) override
|
|
{
|
|
QPainter painter(this);
|
|
QImageReader reader(fileName);
|
|
if (!reader.canRead()) {
|
|
qWarning("Unable to read image file %s", fileName.toLocal8Bit().constData());
|
|
return;
|
|
}
|
|
if (!scale){
|
|
QImage image = reader.read();
|
|
painter.drawImage(rect(), image);
|
|
}else{
|
|
reader.setScaledSize( QSize(rect().width(), rect().height()) );
|
|
QImage image = reader.read();
|
|
painter.drawImage(rect(), image);
|
|
}
|
|
}
|
|
|
|
private:
|
|
QString fileName;
|
|
bool scale;
|
|
|
|
};
|
|
|
|
|
|
|
|
// both the scaled and unscaled version of the CMYK encoded JPEG
|
|
// should have the same colors and not look corrupted.
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
QApplication app(argc, argv);
|
|
|
|
QWidget mainWidget;
|
|
mainWidget.setWindowTitle("Colors in images are identical?");
|
|
mainWidget.setMinimumSize(400,400);
|
|
QHBoxLayout *l = new QHBoxLayout;
|
|
MyWidget *w1 = new MyWidget(&mainWidget,":/Qt_logostrap_CMYK.jpg", false);
|
|
MyWidget *w2 = new MyWidget(&mainWidget,":/Qt_logostrap_CMYK.jpg", true);
|
|
l->addWidget(w1);
|
|
l->addWidget(w2);
|
|
mainWidget.setLayout(l);
|
|
mainWidget.show();
|
|
|
|
return app.exec();
|
|
}
|
|
|