qt5base-lts/tests/auto/qgraphicssceneindex/tst_qgraphicssceneindex.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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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:
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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.
**
** 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:
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**
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** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QtGui/qgraphicsscene.h>
#include <private/qgraphicsscenebsptreeindex_p.h>
#include <private/qgraphicssceneindex_p.h>
#include <private/qgraphicsscenelinearindex_p.h>
#include "../../shared/util.h"
//TESTED_CLASS=
//TESTED_FILES=
class tst_QGraphicsSceneIndex : public QObject
{
Q_OBJECT
public slots:
void initTestCase();
private slots:
void customIndex_data();
void customIndex();
void scatteredItems_data();
void scatteredItems();
void overlappedItems_data();
void overlappedItems();
void movingItems_data();
void movingItems();
void connectedToSceneRectChanged();
void items();
void removeItems();
void clear();
private:
void common_data();
QGraphicsSceneIndex *createIndex(const QString &name);
};
void tst_QGraphicsSceneIndex::initTestCase()
{
}
void tst_QGraphicsSceneIndex::common_data()
{
QTest::addColumn<QString>("indexMethod");
QTest::newRow("BSP") << QString("bsp");
QTest::newRow("Linear") << QString("linear");
}
QGraphicsSceneIndex *tst_QGraphicsSceneIndex::createIndex(const QString &indexMethod)
{
QGraphicsSceneIndex *index = 0;
QGraphicsScene *scene = new QGraphicsScene();
if (indexMethod == "bsp")
index = new QGraphicsSceneBspTreeIndex(scene);
if (indexMethod == "linear")
index = new QGraphicsSceneLinearIndex(scene);
return index;
}
void tst_QGraphicsSceneIndex::customIndex_data()
{
common_data();
}
void tst_QGraphicsSceneIndex::customIndex()
{
#if 0
QFETCH(QString, indexMethod);
QGraphicsSceneIndex *index = createIndex(indexMethod);
QGraphicsScene scene;
scene.setSceneIndex(index);
scene.addRect(0, 0, 30, 40);
QCOMPARE(scene.items(QRectF(0, 0, 10, 10)).count(), 1);
#endif
}
void tst_QGraphicsSceneIndex::scatteredItems_data()
{
common_data();
}
void tst_QGraphicsSceneIndex::scatteredItems()
{
QFETCH(QString, indexMethod);
QGraphicsScene scene;
#if 1
scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
#else
QGraphicsSceneIndex *index = createIndex(indexMethod);
scene.setSceneIndex(index);
#endif
for (int i = 0; i < 10; ++i)
scene.addRect(i*50, i*50, 40, 35);
QCOMPARE(scene.items(QPointF(5, 5)).count(), 1);
QCOMPARE(scene.items(QPointF(55, 55)).count(), 1);
QCOMPARE(scene.items(QPointF(-100, -100)).count(), 0);
QCOMPARE(scene.items(QRectF(0, 0, 10, 10)).count(), 1);
QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).count(), 10);
QCOMPARE(scene.items(QRectF(-100, -1000, 0, 0)).count(), 0);
}
void tst_QGraphicsSceneIndex::overlappedItems_data()
{
common_data();
}
void tst_QGraphicsSceneIndex::overlappedItems()
{
QFETCH(QString, indexMethod);
QGraphicsScene scene;
#if 1
scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
#else
QGraphicsSceneIndex *index = createIndex(indexMethod);
scene.setSceneIndex(index);
#endif
for (int i = 0; i < 10; ++i)
for (int j = 0; j < 10; ++j)
scene.addRect(i*50, j*50, 200, 200);
QCOMPARE(scene.items(QPointF(5, 5)).count(), 1);
QCOMPARE(scene.items(QPointF(55, 55)).count(), 4);
QCOMPARE(scene.items(QPointF(105, 105)).count(), 9);
QCOMPARE(scene.items(QPointF(-100, -100)).count(), 0);
QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).count(), 100);
QCOMPARE(scene.items(QRectF(-100, -1000, 0, 0)).count(), 0);
QCOMPARE(scene.items(QRectF(0, 0, 200, 200)).count(), 16);
QCOMPARE(scene.items(QRectF(0, 0, 100, 100)).count(), 4);
QCOMPARE(scene.items(QRectF(0, 0, 1, 100)).count(), 2);
QCOMPARE(scene.items(QRectF(0, 0, 1, 1000)).count(), 10);
}
void tst_QGraphicsSceneIndex::movingItems_data()
{
common_data();
}
void tst_QGraphicsSceneIndex::movingItems()
{
QFETCH(QString, indexMethod);
QGraphicsScene scene;
#if 1
scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
#else
QGraphicsSceneIndex *index = createIndex(indexMethod);
scene.setSceneIndex(index);
#endif
for (int i = 0; i < 10; ++i)
scene.addRect(i*50, i*50, 40, 35);
QGraphicsRectItem *box = scene.addRect(0, 0, 10, 10);
QCOMPARE(scene.items(QPointF(5, 5)).count(), 2);
QCOMPARE(scene.items(QPointF(-1, -1)).count(), 0);
QCOMPARE(scene.items(QRectF(0, 0, 5, 5)).count(), 2);
box->setPos(10, 10);
QCOMPARE(scene.items(QPointF(9, 9)).count(), 1);
QCOMPARE(scene.items(QPointF(15, 15)).count(), 2);
QCOMPARE(scene.items(QRectF(0, 0, 1, 1)).count(), 1);
box->setPos(-5, -5);
QCOMPARE(scene.items(QPointF(-1, -1)).count(), 1);
QCOMPARE(scene.items(QRectF(0, 0, 1, 1)).count(), 2);
QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).count(), 11);
}
void tst_QGraphicsSceneIndex::connectedToSceneRectChanged()
{
class MyScene : public QGraphicsScene
{
public:
#ifdef Q_CC_RVCT
//using keyword doesn't change visibility to public in RVCT2.2 compiler
inline int receivers(const char* signal) const
{
return QGraphicsScene::receivers(signal);
}
#else
using QGraphicsScene::receivers;
#endif
};
MyScene scene; // Uses QGraphicsSceneBspTreeIndex by default.
QCOMPARE(scene.receivers(SIGNAL(sceneRectChanged(const QRectF&))), 1);
scene.setItemIndexMethod(QGraphicsScene::NoIndex); // QGraphicsSceneLinearIndex
QCOMPARE(scene.receivers(SIGNAL(sceneRectChanged(const QRectF&))), 1);
}
void tst_QGraphicsSceneIndex::items()
{
QGraphicsScene scene;
QGraphicsItem *item1 = scene.addRect(0, 0, 10, 10);
QGraphicsItem *item2 = scene.addRect(10, 10, 10, 10);
QCOMPARE(scene.items().size(), 2);
// Move from unindexed items into bsp tree.
QTest::qWait(50);
QCOMPARE(scene.items().size(), 2);
// Add untransformable item.
QGraphicsItem *item3 = new QGraphicsRectItem(QRectF(20, 20, 10, 10));
item3->setFlag(QGraphicsItem::ItemIgnoresTransformations);
scene.addItem(item3);
QCOMPARE(scene.items().size(), 3);
// Move from unindexed items into untransformable items.
QTest::qWait(50);
QCOMPARE(scene.items().size(), 3);
// Move from untransformable items into unindexed items.
item3->setFlag(QGraphicsItem::ItemIgnoresTransformations, false);
QCOMPARE(scene.items().size(), 3);
QTest::qWait(50);
QCOMPARE(scene.items().size(), 3);
// Make all items untransformable.
item1->setFlag(QGraphicsItem::ItemIgnoresTransformations);
item2->setParentItem(item1);
item3->setParentItem(item2);
QCOMPARE(scene.items().size(), 3);
// Move from unindexed items into untransformable items.
QTest::qWait(50);
QCOMPARE(scene.items().size(), 3);
}
class RectWidget : public QGraphicsWidget
{
Q_OBJECT
public:
RectWidget(QGraphicsItem *parent = 0) : QGraphicsWidget(parent)
{
}
void paint(QPainter *painter, const QStyleOptionGraphicsItem * /* option */, QWidget * /* widget */)
{
painter->setBrush(brush);
painter->drawRect(boundingRect());
}
public:
QBrush brush;
};
void tst_QGraphicsSceneIndex::removeItems()
{
QGraphicsScene scene;
RectWidget *parent = new RectWidget;
parent->brush = QBrush(QColor(Qt::magenta));
parent->setGeometry(250, 250, 400, 400);
RectWidget *widget = new RectWidget(parent);
widget->brush = QBrush(QColor(Qt::blue));
widget->setGeometry(10, 10, 200, 200);
RectWidget *widgetChild1 = new RectWidget(widget);
widgetChild1->brush = QBrush(QColor(Qt::green));
widgetChild1->setGeometry(20, 20, 100, 100);
RectWidget *widgetChild2 = new RectWidget(widgetChild1);
widgetChild2->brush = QBrush(QColor(Qt::yellow));
widgetChild2->setGeometry(25, 25, 50, 50);
scene.addItem(parent);
QGraphicsView view(&scene);
view.resize(600, 600);
view.show();
QApplication::setActiveWindow(&view);
QTest::qWaitForWindowShown(&view);
QApplication::processEvents();
scene.removeItem(widgetChild1);
delete widgetChild1;
//We move the parent
scene.items(295, 295, 50, 50);
//This should not crash
}
void tst_QGraphicsSceneIndex::clear()
{
class MyItem : public QGraphicsItem
{
public:
MyItem(QGraphicsItem *parent = 0) : QGraphicsItem(parent), numPaints(0) {}
int numPaints;
protected:
QRectF boundingRect() const { return QRectF(0, 0, 10, 10); }
void paint(QPainter * /* painter */, const QStyleOptionGraphicsItem *, QWidget *)
{ ++numPaints; }
};
QGraphicsScene scene;
scene.setSceneRect(0, 0, 100, 100);
scene.addItem(new MyItem);
QGraphicsView view(&scene);
view.show();
#ifdef Q_WS_X11
qt_x11_wait_for_window_manager(&view);
#endif
QTest::qWait(250);
scene.clear();
// Make sure the index is re-generated after QGraphicsScene::clear();
// otherwise no items will be painted.
MyItem *item = new MyItem;
scene.addItem(item);
qApp->processEvents();
QTRY_COMPARE(item->numPaints, 1);
}
QTEST_MAIN(tst_QGraphicsSceneIndex)
#include "tst_qgraphicssceneindex.moc"