mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
340 lines
10 KiB
C++
340 lines
10 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QTest>
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#include <QtGui/QPainterPath>
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#include <QtWidgets/qgraphicsscene.h>
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#include <private/qgraphicsscenebsptreeindex_p.h>
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#include <private/qgraphicssceneindex_p.h>
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#include <private/qgraphicsscenelinearindex_p.h>
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#include <QtWidgets/private/qapplication_p.h>
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class tst_QGraphicsSceneIndex : public QObject
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{
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Q_OBJECT
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public slots:
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void initTestCase();
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private slots:
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void scatteredItems_data();
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void scatteredItems();
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void overlappedItems_data();
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void overlappedItems();
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void movingItems_data();
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void movingItems();
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void connectedToSceneRectChanged();
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void items();
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void boundingRectPointIntersection_data();
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void boundingRectPointIntersection();
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void removeItems();
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void clear();
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private:
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void common_data();
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QGraphicsSceneIndex *createIndex(const QString &name);
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};
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void tst_QGraphicsSceneIndex::initTestCase()
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{
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}
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void tst_QGraphicsSceneIndex::common_data()
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{
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QTest::addColumn<QString>("indexMethod");
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QTest::newRow("BSP") << QString("bsp");
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QTest::newRow("Linear") << QString("linear");
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}
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QGraphicsSceneIndex *tst_QGraphicsSceneIndex::createIndex(const QString &indexMethod)
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{
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QGraphicsSceneIndex *index = nullptr;
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QGraphicsScene *scene = new QGraphicsScene();
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if (indexMethod == "bsp")
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index = new QGraphicsSceneBspTreeIndex(scene);
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if (indexMethod == "linear")
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index = new QGraphicsSceneLinearIndex(scene);
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return index;
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}
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void tst_QGraphicsSceneIndex::scatteredItems_data()
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{
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common_data();
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}
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void tst_QGraphicsSceneIndex::scatteredItems()
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{
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QFETCH(QString, indexMethod);
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QGraphicsScene scene;
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scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
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for (int i = 0; i < 10; ++i)
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scene.addRect(i*50, i*50, 40, 35);
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QCOMPARE(scene.items(QPointF(5, 5)).size(), 1);
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QCOMPARE(scene.items(QPointF(55, 55)).size(), 1);
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QCOMPARE(scene.items(QPointF(-100, -100)).size(), 0);
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QCOMPARE(scene.items(QRectF(0, 0, 10, 10)).size(), 1);
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QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).size(), 10);
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QCOMPARE(scene.items(QRectF(-100, -1000, 0, 0)).size(), 0);
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}
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void tst_QGraphicsSceneIndex::overlappedItems_data()
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{
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common_data();
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}
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void tst_QGraphicsSceneIndex::overlappedItems()
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{
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QFETCH(QString, indexMethod);
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QGraphicsScene scene;
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scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
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for (int i = 0; i < 10; ++i)
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for (int j = 0; j < 10; ++j)
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scene.addRect(i*50, j*50, 200, 200)->setPen(QPen(Qt::black, 0));
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QCOMPARE(scene.items(QPointF(5, 5)).size(), 1);
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QCOMPARE(scene.items(QPointF(55, 55)).size(), 4);
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QCOMPARE(scene.items(QPointF(105, 105)).size(), 9);
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QCOMPARE(scene.items(QPointF(-100, -100)).size(), 0);
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QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).size(), 100);
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QCOMPARE(scene.items(QRectF(-100, -1000, 0, 0)).size(), 0);
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QCOMPARE(scene.items(QRectF(0, 0, 200, 200)).size(), 16);
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QCOMPARE(scene.items(QRectF(0, 0, 100, 100)).size(), 4);
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QCOMPARE(scene.items(QRectF(0, 0, 1, 100)).size(), 2);
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QCOMPARE(scene.items(QRectF(0, 0, 1, 1000)).size(), 10);
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}
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void tst_QGraphicsSceneIndex::movingItems_data()
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{
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common_data();
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}
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void tst_QGraphicsSceneIndex::movingItems()
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{
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QFETCH(QString, indexMethod);
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QGraphicsScene scene;
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scene.setItemIndexMethod(indexMethod == "linear" ? QGraphicsScene::NoIndex : QGraphicsScene::BspTreeIndex);
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for (int i = 0; i < 10; ++i)
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scene.addRect(i*50, i*50, 40, 35);
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QGraphicsRectItem *box = scene.addRect(0, 0, 10, 10);
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QCOMPARE(scene.items(QPointF(5, 5)).size(), 2);
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QCOMPARE(scene.items(QPointF(-1, -1)).size(), 0);
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QCOMPARE(scene.items(QRectF(0, 0, 5, 5)).size(), 2);
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box->setPos(10, 10);
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QCOMPARE(scene.items(QPointF(9, 9)).size(), 1);
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QCOMPARE(scene.items(QPointF(15, 15)).size(), 2);
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QCOMPARE(scene.items(QRectF(0, 0, 1, 1)).size(), 1);
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box->setPos(-5, -5);
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QCOMPARE(scene.items(QPointF(-1, -1)).size(), 1);
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QCOMPARE(scene.items(QRectF(0, 0, 1, 1)).size(), 2);
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QCOMPARE(scene.items(QRectF(0, 0, 1000, 1000)).size(), 11);
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}
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void tst_QGraphicsSceneIndex::connectedToSceneRectChanged()
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{
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class MyScene : public QGraphicsScene
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{
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public:
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using QGraphicsScene::receivers;
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};
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MyScene scene; // Uses QGraphicsSceneBspTreeIndex by default.
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QCOMPARE(scene.receivers(SIGNAL(sceneRectChanged(QRectF))), 1);
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scene.setItemIndexMethod(QGraphicsScene::NoIndex); // QGraphicsSceneLinearIndex
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QCOMPARE(scene.receivers(SIGNAL(sceneRectChanged(QRectF))), 1);
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}
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void tst_QGraphicsSceneIndex::items()
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{
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QGraphicsScene scene;
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QGraphicsItem *item1 = scene.addRect(0, 0, 10, 10);
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QGraphicsItem *item2 = scene.addRect(10, 10, 10, 10);
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QCOMPARE(scene.items().size(), 2);
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// Move from unindexed items into bsp tree.
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QTest::qWait(50);
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QCOMPARE(scene.items().size(), 2);
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// Add untransformable item.
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QGraphicsItem *item3 = new QGraphicsRectItem(QRectF(20, 20, 10, 10));
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item3->setFlag(QGraphicsItem::ItemIgnoresTransformations);
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scene.addItem(item3);
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QCOMPARE(scene.items().size(), 3);
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// Move from unindexed items into untransformable items.
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QTest::qWait(50);
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QCOMPARE(scene.items().size(), 3);
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// Move from untransformable items into unindexed items.
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item3->setFlag(QGraphicsItem::ItemIgnoresTransformations, false);
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QCOMPARE(scene.items().size(), 3);
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QTest::qWait(50);
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QCOMPARE(scene.items().size(), 3);
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// Make all items untransformable.
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item1->setFlag(QGraphicsItem::ItemIgnoresTransformations);
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item2->setParentItem(item1);
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item3->setParentItem(item2);
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QCOMPARE(scene.items().size(), 3);
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// Move from unindexed items into untransformable items.
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QTest::qWait(50);
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QCOMPARE(scene.items().size(), 3);
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}
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class CustomShapeItem : public QGraphicsItem
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{
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public:
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CustomShapeItem(const QPainterPath &shape) : QGraphicsItem(0), mShape(shape) {}
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QPainterPath shape() const override { return mShape; }
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QRectF boundingRect() const override { return mShape.boundingRect(); }
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void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override {}
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private:
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QPainterPath mShape;
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};
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Q_DECLARE_METATYPE(Qt::ItemSelectionMode)
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Q_DECLARE_METATYPE(QPainterPath)
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void tst_QGraphicsSceneIndex::boundingRectPointIntersection_data()
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{
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QTest::addColumn<QPainterPath>("itemShape");
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QTest::addColumn<Qt::ItemSelectionMode>("mode");
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QTest::newRow("zero shape - intersects rect") << QPainterPath() << Qt::IntersectsItemBoundingRect;
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QTest::newRow("zero shape - contains rect") << QPainterPath() << Qt::ContainsItemBoundingRect;
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QPainterPath triangle;
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triangle.moveTo(50, 0);
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triangle.lineTo(0, 50);
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triangle.lineTo(100, 50);
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triangle.lineTo(50, 0);
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QTest::newRow("triangle shape - intersects rect") << triangle << Qt::IntersectsItemBoundingRect;
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QTest::newRow("triangle shape - contains rect") << triangle << Qt::ContainsItemBoundingRect;
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QPainterPath rect;
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rect.addRect(QRectF(0, 0, 100, 100));
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QTest::newRow("rectangle shape - intersects rect") << rect << Qt::IntersectsItemBoundingRect;
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QTest::newRow("rectangle shape - contains rect") << rect << Qt::ContainsItemBoundingRect;
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}
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void tst_QGraphicsSceneIndex::boundingRectPointIntersection()
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{
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QFETCH(QPainterPath, itemShape);
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QFETCH(Qt::ItemSelectionMode, mode);
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QGraphicsScene scene;
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CustomShapeItem *item = new CustomShapeItem(itemShape);
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scene.addItem(item);
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QList<QGraphicsItem*> items = scene.items(QPointF(0, 0), mode, Qt::AscendingOrder);
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QVERIFY(!items.isEmpty());
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QCOMPARE(items.first(), item);
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}
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class RectWidget : public QGraphicsWidget
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{
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Q_OBJECT
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public:
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RectWidget(QGraphicsItem *parent = nullptr) : QGraphicsWidget(parent)
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{
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}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem * /* option */, QWidget * /* widget */) override
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{
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painter->setBrush(brush);
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painter->drawRect(boundingRect());
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}
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public:
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QBrush brush;
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};
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void tst_QGraphicsSceneIndex::removeItems()
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{
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QGraphicsScene scene;
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RectWidget *parent = new RectWidget;
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parent->brush = QBrush(QColor(Qt::magenta));
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parent->setGeometry(250, 250, 400, 400);
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RectWidget *widget = new RectWidget(parent);
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widget->brush = QBrush(QColor(Qt::blue));
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widget->setGeometry(10, 10, 200, 200);
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RectWidget *widgetChild1 = new RectWidget(widget);
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widgetChild1->brush = QBrush(QColor(Qt::green));
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widgetChild1->setGeometry(20, 20, 100, 100);
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RectWidget *widgetChild2 = new RectWidget(widgetChild1);
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widgetChild2->brush = QBrush(QColor(Qt::yellow));
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widgetChild2->setGeometry(25, 25, 50, 50);
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scene.addItem(parent);
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QGraphicsView view(&scene);
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view.resize(600, 600);
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view.show();
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QApplicationPrivate::setActiveWindow(&view);
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QVERIFY(QTest::qWaitForWindowActive(&view));
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scene.removeItem(widgetChild1);
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delete widgetChild1;
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//We move the parent
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scene.items(QRectF(295, 295, 50, 50));
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//This should not crash
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}
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void tst_QGraphicsSceneIndex::clear()
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{
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class MyItem : public QGraphicsItem
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{
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public:
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MyItem(QGraphicsItem *parent = nullptr) : QGraphicsItem(parent), numPaints(0) {}
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int numPaints;
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protected:
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QRectF boundingRect() const override { return QRectF(0, 0, 10, 10); }
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void paint(QPainter * /* painter */, const QStyleOptionGraphicsItem *, QWidget *) override
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{ ++numPaints; }
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};
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QGraphicsScene scene;
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scene.setSceneRect(0, 0, 100, 100);
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scene.addItem(new MyItem);
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QGraphicsView view(&scene);
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view.show();
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QApplicationPrivate::setActiveWindow(&view);
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QVERIFY(QTest::qWaitForWindowActive(&view));
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scene.clear();
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// Make sure the index is re-generated after QGraphicsScene::clear();
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// otherwise no items will be painted.
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MyItem *item = new MyItem;
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scene.addItem(item);
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qApp->processEvents();
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QTRY_VERIFY(item->numPaints > 0);
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}
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QTEST_MAIN(tst_QGraphicsSceneIndex)
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#include "tst_qgraphicssceneindex.moc"
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