qt5base-lts/tests/auto/widgets/graphicsview/qgraphicseffectsource/tst_qgraphicseffectsource.cpp
Jason McDonald 5635823e17 Remove "All rights reserved" line from license headers.
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-30 03:54:59 +01:00

420 lines
13 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser 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 will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QtWidgets/qgraphicseffect.h>
#include <QtWidgets/qgraphicsview.h>
#include <QtWidgets/qgraphicsscene.h>
#include <QtWidgets/qgraphicsitem.h>
#include <QtWidgets/qstyleoption.h>
#include <private/qgraphicseffect_p.h>
class CustomItem : public QGraphicsRectItem
{
public:
CustomItem(qreal x, qreal y, qreal width, qreal height)
: QGraphicsRectItem(x, y, width, height), numRepaints(0),
m_painter(0)
{}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
m_painter = painter;
++numRepaints;
QGraphicsRectItem::paint(painter, option, widget);
}
void reset()
{
numRepaints = 0;
m_painter = 0;
}
int numRepaints;
QPainter *m_painter;
};
class CustomEffect : public QGraphicsEffect
{
public:
CustomEffect()
: QGraphicsEffect(), numRepaints(0), m_margin(10), m_sourceChanged(false),
m_sourceBoundingRectChanged(false), doNothingInDraw(false),
storeDeviceDependentStuff(false),
m_painter(0), m_source(0)
{}
QRectF boundingRectFor(const QRectF &rect) const
{ return rect.adjusted(-m_margin, -m_margin, m_margin, m_margin); }
void reset()
{
numRepaints = 0;
m_sourceChanged = false;
m_sourceBoundingRectChanged = false;
m_painter = 0;
m_source = 0;
deviceCoordinatesPixmap = QPixmap();
deviceRect = QRect();
sourceDeviceBoundingRect = QRectF();
}
void setMargin(int margin)
{
m_margin = margin;
updateBoundingRect();
}
int margin() const
{ return m_margin; }
void draw(QPainter *painter)
{
++numRepaints;
if (storeDeviceDependentStuff) {
deviceCoordinatesPixmap = source()->pixmap(Qt::DeviceCoordinates);
deviceRect = QRect(0, 0, painter->device()->width(), painter->device()->height());
sourceDeviceBoundingRect = source()->boundingRect(Qt::DeviceCoordinates);
}
if (doNothingInDraw)
return;
m_source = source();
m_painter = painter;
source()->draw(painter);
}
void sourceChanged(ChangeFlags)
{ m_sourceChanged = true; }
void sourceBoundingRectChanged()
{ m_sourceBoundingRectChanged = true; }
int numRepaints;
int m_margin;
bool m_sourceChanged;
bool m_sourceBoundingRectChanged;
bool doNothingInDraw;
bool storeDeviceDependentStuff;
QPainter *m_painter;
QGraphicsEffectSource *m_source;
QPixmap deviceCoordinatesPixmap;
QRect deviceRect;
QRectF sourceDeviceBoundingRect;
};
class tst_QGraphicsEffectSource : public QObject
{
Q_OBJECT
public slots:
void initTestCase();
void cleanupTestCase();
void init();
private slots:
void graphicsItem();
void styleOption();
void isPixmap();
void draw();
void update();
void boundingRect();
void clippedBoundingRect();
void deviceRect();
void pixmap();
void pixmapPadding_data();
void pixmapPadding();
private:
QGraphicsView *view;
QGraphicsScene *scene;
CustomItem *item;
CustomEffect *effect;
};
void tst_QGraphicsEffectSource::initTestCase()
{
scene = new QGraphicsScene;
item = new CustomItem(0, 0, 100, 100);
effect = new CustomEffect;
item->setGraphicsEffect(effect);
scene->addItem(item);
view = new QGraphicsView(scene);
view->show();
#ifdef Q_WS_X11
qt_x11_wait_for_window_manager(view);
#endif
QTest::qWait(200);
}
void tst_QGraphicsEffectSource::cleanupTestCase()
{
delete view;
}
void tst_QGraphicsEffectSource::init()
{
QVERIFY(effect);
QVERIFY(item);
QVERIFY(effect->source());
effect->reset();
effect->storeDeviceDependentStuff = false;
effect->doNothingInDraw = false;
item->reset();
}
void tst_QGraphicsEffectSource::graphicsItem()
{
QVERIFY(effect->source());
QCOMPARE(effect->source()->graphicsItem(), (const QGraphicsItem*)item);
}
void tst_QGraphicsEffectSource::styleOption()
{
// We don't have style options unless the source is drawing.
QVERIFY(effect->source());
QVERIFY(!effect->source()->styleOption());
// Trigger an update and check that the style option in QGraphicsEffect::draw
// was the same as the one in QGraphicsItem::paint.
QCOMPARE(item->numRepaints, 0);
QCOMPARE(effect->numRepaints, 0);
item->update();
QTRY_COMPARE(item->numRepaints, 1);
QTRY_COMPARE(effect->numRepaints, 1);
}
void tst_QGraphicsEffectSource::isPixmap()
{
// Current source is a CustomItem (which is not a pixmap item).
QVERIFY(!effect->source()->isPixmap());
// Make sure isPixmap() returns true for QGraphicsPixmapItem.
QGraphicsPixmapItem *pixmapItem = new QGraphicsPixmapItem;
CustomEffect *anotherEffect = new CustomEffect;
pixmapItem->setGraphicsEffect(anotherEffect);
QVERIFY(anotherEffect->source());
QCOMPARE(anotherEffect->source()->graphicsItem(), static_cast<const QGraphicsItem *>(pixmapItem));
QVERIFY(anotherEffect->source()->isPixmap());
delete pixmapItem;
}
void tst_QGraphicsEffectSource::draw()
{
// The source can only draw as a result of QGraphicsEffect::draw.
QTest::ignoreMessage(QtWarningMsg, "QGraphicsEffectSource::draw: Can only begin as a result of QGraphicsEffect::draw");
QPixmap dummyPixmap(10, 10);
QPainter dummyPainter(&dummyPixmap);
effect->source()->draw(&dummyPainter);
}
void tst_QGraphicsEffectSource::update()
{
QCOMPARE(item->numRepaints, 0);
QCOMPARE(effect->numRepaints, 0);
effect->source()->update();
QTRY_COMPARE(item->numRepaints, 1);
QTRY_COMPARE(effect->numRepaints, 1);
}
void tst_QGraphicsEffectSource::boundingRect()
{
QTest::ignoreMessage(QtWarningMsg, "QGraphicsEffectSource::boundingRect: Not yet implemented, lacking device context");
QCOMPARE(effect->source()->boundingRect(Qt::DeviceCoordinates), QRectF());
QRectF itemBoundingRect = item->boundingRect();
if (!item->children().isEmpty())
itemBoundingRect |= item->childrenBoundingRect();
// We can at least check that the device bounding rect was correct in QGraphicsEffect::draw.
effect->storeDeviceDependentStuff = true;
effect->source()->update();
const QTransform deviceTransform = item->deviceTransform(view->viewportTransform());
QTRY_COMPARE(effect->sourceDeviceBoundingRect, deviceTransform.mapRect(itemBoundingRect));
// Bounding rect in logical coordinates is of course fine.
QTRY_COMPARE(effect->source()->boundingRect(Qt::LogicalCoordinates), itemBoundingRect);
// Make sure default value is Qt::LogicalCoordinates.
QTRY_COMPARE(effect->source()->boundingRect(), itemBoundingRect);
}
void tst_QGraphicsEffectSource::clippedBoundingRect()
{
QRectF itemBoundingRect = item->boundingRect();
item->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
QGraphicsRectItem *child = new QGraphicsRectItem(-1000, -1000, 2000, 2000);
child->setBrush(Qt::red);
child->setParentItem(item);
effect->storeDeviceDependentStuff = true;
effect->source()->update();
QTRY_COMPARE(effect->source()->boundingRect(Qt::LogicalCoordinates), itemBoundingRect);
}
void tst_QGraphicsEffectSource::deviceRect()
{
effect->storeDeviceDependentStuff = true;
effect->source()->update();
QTRY_COMPARE(effect->deviceRect, view->viewport()->rect());
}
void tst_QGraphicsEffectSource::pixmap()
{
QTest::ignoreMessage(QtWarningMsg, "QGraphicsEffectSource::pixmap: Not yet implemented, lacking device context");
QCOMPARE(effect->source()->pixmap(Qt::DeviceCoordinates), QPixmap());
// We can at least verify a valid pixmap from QGraphicsEffect::draw.
effect->storeDeviceDependentStuff = true;
effect->source()->update();
QTRY_VERIFY(!effect->deviceCoordinatesPixmap.isNull());
// Pixmaps in logical coordinates we can do fine.
QPixmap pixmap1 = effect->source()->pixmap(Qt::LogicalCoordinates);
QVERIFY(!pixmap1.isNull());
// Make sure default value is Qt::LogicalCoordinates.
QPixmap pixmap2 = effect->source()->pixmap();
QCOMPARE(pixmap1, pixmap2);
}
class PaddingEffect : public QGraphicsEffect
{
public:
PaddingEffect(QObject *parent) : QGraphicsEffect(parent)
{
}
QRectF boundingRectFor(const QRectF &src) const {
return src.adjusted(-10, -10, 10, 10);
}
void draw(QPainter *) {
pix = source()->pixmap(coordinateMode, &offset, padMode);
}
QPixmap pix;
QPoint offset;
QGraphicsEffect::PixmapPadMode padMode;
Qt::CoordinateSystem coordinateMode;
};
void tst_QGraphicsEffectSource::pixmapPadding_data()
{
QTest::addColumn<int>("coordinateMode");
QTest::addColumn<int>("padMode");
QTest::addColumn<QSize>("size");
QTest::addColumn<QPoint>("offset");
QTest::addColumn<uint>("ulPixel");
QTest::newRow("log,nopad") << int(Qt::LogicalCoordinates)
<< int(QGraphicsEffect::NoPad)
<< QSize(10, 10) << QPoint(0, 0)
<< 0xffff0000u;
QTest::newRow("log,transparent") << int(Qt::LogicalCoordinates)
<< int(QGraphicsEffect::PadToTransparentBorder)
<< QSize(14, 14) << QPoint(-2, -2)
<< 0x00000000u;
QTest::newRow("log,effectrect") << int(Qt::LogicalCoordinates)
<< int(QGraphicsEffect::PadToEffectiveBoundingRect)
<< QSize(20, 20) << QPoint(-5, -5)
<< 0x00000000u;
QTest::newRow("dev,nopad") << int(Qt::DeviceCoordinates)
<< int(QGraphicsEffect::NoPad)
<< QSize(20, 20) << QPoint(40, 40)
<< 0xffff0000u;
QTest::newRow("dev,transparent") << int(Qt::DeviceCoordinates)
<< int(QGraphicsEffect::PadToTransparentBorder)
<< QSize(24, 24) << QPoint(38, 38)
<< 0x00000000u;
QTest::newRow("dev,effectrect") << int(Qt::DeviceCoordinates)
<< int(QGraphicsEffect::PadToEffectiveBoundingRect)
<< QSize(40, 40) << QPoint(30, 30)
<< 0x00000000u;
}
void tst_QGraphicsEffectSource::pixmapPadding()
{
QPixmap dummyTarget(100, 100);
QPainter dummyPainter(&dummyTarget);
dummyPainter.translate(40, 40);
dummyPainter.scale(2, 2);
QPixmap pm(10, 10);
pm.fill(Qt::red);
QGraphicsScene *scene = new QGraphicsScene();
PaddingEffect *effect = new PaddingEffect(scene);
QGraphicsPixmapItem *pmItem = new QGraphicsPixmapItem(pm);
scene->addItem(pmItem);
pmItem->setGraphicsEffect(effect);
QFETCH(int, coordinateMode);
QFETCH(int, padMode);
QFETCH(QPoint, offset);
QFETCH(QSize, size);
QFETCH(uint, ulPixel);
effect->padMode = (QGraphicsEffect::PixmapPadMode) padMode;
effect->coordinateMode = (Qt::CoordinateSystem) coordinateMode;
scene->render(&dummyPainter, scene->itemsBoundingRect(), scene->itemsBoundingRect());
QCOMPARE(effect->pix.size(), size);
QCOMPARE(effect->offset, offset);
QCOMPARE(effect->pix.toImage().pixel(0, 0), ulPixel);
// ### Fix corruption in scene destruction, then enable...
// delete scene;
}
QTEST_MAIN(tst_QGraphicsEffectSource)
#include "tst_qgraphicseffectsource.moc"