qt5base-lts/tests/auto/qwindowsurface/tst_qwindowsurface.cpp

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
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** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** If you have questions regarding the use of this file, please contact
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** $QT_END_LICENSE$
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****************************************************************************/
#include <QtTest/QtTest>
#include <QPainter>
#include <QPalette>
#include <QWindowsStyle>
#ifndef Q_WS_MAC
#include <private/qwindowsurface_p.h>
#include <QDesktopWidget>
#include <QX11Info>
#include "../../shared/util.h"
class tst_QWindowSurface : public QObject
{
Q_OBJECT
public:
tst_QWindowSurface() {}
~tst_QWindowSurface() {}
private slots:
void getSetWindowSurface();
void flushOutsidePaintEvent();
void grabWidget();
};
class MyWindowSurface : public QWindowSurface
{
public:
MyWindowSurface(QWidget *w) : QWindowSurface(w) {}
QPaintDevice *paintDevice() {
return &image;
}
void flush(QWidget*, const QRegion&, const QPoint&) {
/* nothing */
}
private:
QImage image;
};
class ColorWidget : public QWidget
{
public:
ColorWidget(QWidget *parent = 0, const QColor &c = QColor(Qt::red))
: QWidget(parent, Qt::FramelessWindowHint), color(c)
{
QPalette opaquePalette = palette();
opaquePalette.setColor(backgroundRole(), color);
setPalette(opaquePalette);
setAutoFillBackground(true);
}
void paintEvent(QPaintEvent *e) {
r += e->region();
}
void reset() {
r = QRegion();
}
QColor color;
QRegion r;
};
//from tst_qwidget.cpp
static void VERIFY_COLOR(const QRegion &region, const QColor &color)
{
const QRegion r = QRegion(region);
for (int i = 0; i < r.rects().size(); ++i) {
const QRect rect = r.rects().at(i);
for (int t = 0; t < 5; t++) {
const QPixmap pixmap = QPixmap::grabWindow(QDesktopWidget().winId(),
rect.left(), rect.top(),
rect.width(), rect.height());
QCOMPARE(pixmap.size(), rect.size());
QPixmap expectedPixmap(pixmap); /* ensure equal formats */
expectedPixmap.fill(color);
if (pixmap.toImage().pixel(0,0) != QColor(color).rgb() && t < 4 )
{ QTest::qWait(200); continue; }
QCOMPARE(pixmap.toImage().pixel(0,0), QColor(color).rgb());
QCOMPARE(pixmap, expectedPixmap);
break;
}
}
}
void tst_QWindowSurface::getSetWindowSurface()
{
QWidget w;
QVERIFY(!w.windowSurface());
w.show();
QApplication::processEvents();
QVERIFY(w.windowSurface());
for (int i = 0; i < 2; ++i) {
MyWindowSurface *surface = new MyWindowSurface(&w);
QCOMPARE(w.windowSurface(), (QWindowSurface *)surface);
w.setWindowSurface(surface);
QCOMPARE(w.windowSurface(), (QWindowSurface *)surface);
}
}
void tst_QWindowSurface::flushOutsidePaintEvent()
{
#ifdef Q_WS_X11
if (QX11Info::isCompositingManagerRunning())
QSKIP("Test is unreliable with composition manager", SkipAll);
#endif
#ifdef Q_WS_WIN
if (QSysInfo::WindowsVersion & QSysInfo::WV_VISTA) {
QTest::qWait(1000);
}
#endif
ColorWidget w(0, Qt::red);
w.setGeometry(10, 100, 50, 50);
// prevent custom styles from messing up the background
w.setStyle(new QWindowsStyle);
w.show();
QTest::qWaitForWindowShown(&w);
QApplication::processEvents();
#if defined(Q_WS_QWS)
QApplication::sendPostedEvents(); //for the glib event loop
#elif defined(Q_WS_S60)
QTest::qWait(5000);
#endif
VERIFY_COLOR(w.geometry(), w.color);
w.reset();
// trigger a paintEvent() the next time the event loop is entered
w.update();
// draw a black rectangle inside the widget
QWindowSurface *surface = w.windowSurface();
QVERIFY(surface);
const QRect rect = surface->rect(&w);
surface->beginPaint(rect);
QImage *img = surface->buffer(&w);
if (img) {
QPainter p(img);
p.fillRect(QRect(QPoint(),img->size()), Qt::black);
}
surface->endPaint(rect);
surface->flush(&w, rect, QPoint());
#ifdef Q_WS_QWS
VERIFY_COLOR(w.geometry(), Qt::black);
#endif
// the paintEvent() should overwrite the painted rectangle
QApplication::processEvents();
#if defined(Q_WS_QWS)
QSKIP("task 176755", SkipAll);
#endif
VERIFY_COLOR(w.geometry(), w.color);
QCOMPARE(QRegion(w.rect()), w.r);
w.reset();
}
void tst_QWindowSurface::grabWidget()
{
QWidget parentWidget;
QWidget childWidget(&parentWidget);
QWidget babyWidget(&childWidget);
parentWidget.resize(300, 300);
childWidget.setGeometry(50, 50, 200, 200);
childWidget.setAutoFillBackground(true);
babyWidget.setGeometry(50, 50, 100, 100);
babyWidget.setAutoFillBackground(true);
QPalette pal = parentWidget.palette();
pal.setColor(QPalette::Window, QColor(Qt::blue));
parentWidget.setPalette(pal);
pal = childWidget.palette();
pal.setColor(QPalette::Window, QColor(Qt::white));
childWidget.setPalette(pal);
pal = babyWidget.palette();
pal.setColor(QPalette::Window, QColor(Qt::red));
babyWidget.setPalette(pal);
// prevent custom styles from messing up the background
parentWidget.setStyle(new QWindowsStyle);
babyWidget.show();
childWidget.show();
parentWidget.show();
QTest::qWaitForWindowShown(&parentWidget);
QPixmap parentPixmap;
QTRY_COMPARE((parentPixmap = parentWidget.windowSurface()->grabWidget(&parentWidget)).size(),
QSize(300,300));
QPixmap childPixmap = childWidget.windowSurface()->grabWidget(&childWidget);
QPixmap babyPixmap = babyWidget.windowSurface()->grabWidget(&babyWidget);
QPixmap parentSubPixmap = parentWidget.windowSurface()->grabWidget(&parentWidget, QRect(25, 25, 100, 100));
QPixmap childSubPixmap = childWidget.windowSurface()->grabWidget(&childWidget, QRect(55, 55, 50, 50));
QPixmap childInvalidSubPixmap = childWidget.windowSurface()->grabWidget(&childWidget, QRect(-50, -50, 150, 150));
QCOMPARE(parentPixmap.size(), QSize(300, 300));
QCOMPARE(childPixmap.size(), QSize(200, 200));
QCOMPARE(babyPixmap.size(), QSize(100, 100));
QCOMPARE(parentSubPixmap.size(), QSize(100, 100));
QCOMPARE(childSubPixmap.size(), QSize(50, 50));
QCOMPARE(childInvalidSubPixmap.size(), QSize(100, 100));
QImage parentImage = parentPixmap.toImage();
QImage childImage = childPixmap.toImage();
QImage babyImage = babyPixmap.toImage();
QImage parentSubImage = parentSubPixmap.toImage();
QImage childSubImage = childSubPixmap.toImage();
QImage childInvalidSubImage = childInvalidSubPixmap.toImage();
QVERIFY(QColor(parentImage.pixel(0, 0)) == QColor(Qt::blue));
QVERIFY(QColor(parentImage.pixel(75, 75)) == QColor(Qt::white));
QVERIFY(QColor(parentImage.pixel(149, 149)) == QColor(Qt::red));
QVERIFY(QColor(childImage.pixel(0, 0)) == QColor(Qt::white));
QVERIFY(QColor(childImage.pixel(99, 99)) == QColor(Qt::red));
QVERIFY(QColor(parentSubImage.pixel(0, 0)) == QColor(Qt::blue));
QVERIFY(QColor(parentSubImage.pixel(30, 30)) == QColor(Qt::white));
QVERIFY(QColor(parentSubImage.pixel(80, 80)) == QColor(Qt::red));
QVERIFY(QColor(childSubImage.pixel(0, 0)) == QColor(Qt::red));
QVERIFY(QColor(childInvalidSubImage.pixel(0, 0)) == QColor(Qt::white));
}
QTEST_MAIN(tst_QWindowSurface)
#else // Q_WS_MAC
QTEST_NOOP_MAIN
#endif
#include "tst_qwindowsurface.moc"