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#include <qtest.h>

#include <QGraphicsItem>

#include <QGraphicsScene>

#include <QGraphicsView>

//TESTED_FILES=

class tst_QGraphicsItem : public QObject

{

    Q_OBJECT

public:

    tst_QGraphicsItem();

    virtual ~tst_QGraphicsItem();

public slots:

    void init();

    void cleanup();

private slots:

    void setParentItem();

    void setParentItem_deep();

    void setParentItem_deep_reversed();

    void deleteItemWithManyChildren();

    void setPos_data();

    void setPos();

    void setTransform_data();

    void setTransform();

    void rotate();

    void scale();

    void shear();

    void translate();

    void setRotation();

};

tst_QGraphicsItem::tst_QGraphicsItem()

{

}

tst_QGraphicsItem::~tst_QGraphicsItem()

{

}

void tst_QGraphicsItem::init()

{

}

void tst_QGraphicsItem::cleanup()

{

}

void tst_QGraphicsItem::setParentItem()

{

    QBENCHMARK {

        QGraphicsRectItem rect;

        QGraphicsRectItem *childRect = new QGraphicsRectItem;

        childRect->setParentItem(&rect);

    }

}

void tst_QGraphicsItem::setParentItem_deep()

{

    QBENCHMARK {

        QGraphicsRectItem rect;

        QGraphicsRectItem *lastRect = ▭

        for (int i = 0; i < 10; ++i) {

            QGraphicsRectItem *childRect = new QGraphicsRectItem;

            childRect->setParentItem(lastRect);

            lastRect = childRect;

        }

        QGraphicsItem *first = rect.children().first();

        first->setParentItem(0);

    }

}

void tst_QGraphicsItem::setParentItem_deep_reversed()

{

    QBENCHMARK {

        QGraphicsRectItem *lastRect = new QGraphicsRectItem;

        for (int i = 0; i < 100; ++i) {

            QGraphicsRectItem *parentRect = new QGraphicsRectItem;

            lastRect->setParentItem(parentRect);

            lastRect = parentRect;

        }

        delete lastRect;

    }

}

void tst_QGraphicsItem::deleteItemWithManyChildren()

{

    QBENCHMARK {

        QGraphicsRectItem *rect = new QGraphicsRectItem;

        for (int i = 0; i < 1000; ++i)

            new QGraphicsRectItem(rect);

        delete rect;

    }

}

void tst_QGraphicsItem::setPos_data()

{

    QTest::addColumn<QPointF>("pos");

    QTest::newRow("0, 0") << QPointF(0, 0);

    QTest::newRow("10, 10") << QPointF(10, 10);

    QTest::newRow("-10, -10") << QPointF(-10, -10);

}

void tst_QGraphicsItem::setPos()

{

    QFETCH(QPointF, pos);

    QGraphicsScene scene;

    QGraphicsRectItem *rect = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        rect->setPos(10, 10);

        rect->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::setTransform_data()

{

    QTest::addColumn<QTransform>("transform");

    QTest::newRow("id") << QTransform();

    QTest::newRow("rotate 45z") << QTransform().rotate(45);

    QTest::newRow("scale 2x2") << QTransform().scale(2, 2);

    QTest::newRow("translate 100, 100") << QTransform().translate(100, 100);

    QTest::newRow("rotate 45x 45y 45z") << QTransform().rotate(45, Qt::XAxis)

        .rotate(45, Qt::YAxis).rotate(45, Qt::ZAxis);

}

void tst_QGraphicsItem::setTransform()

{

    QFETCH(QTransform, transform);

    QGraphicsScene scene;

    QGraphicsRectItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->setTransform(transform);

        item->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::rotate()

{

    QGraphicsScene scene;

    QGraphicsItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->rotate(45);

        item->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::scale()

{

    QGraphicsScene scene;

    QGraphicsItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->scale(2, 2);

        item->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::shear()

{

    QGraphicsScene scene;

    QGraphicsItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->shear(1.5, 1.5);

        item->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::translate()

{

    QGraphicsScene scene;

    QGraphicsItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->translate(100, 100);

        item->transform(); // prevent lazy optimizing

    }

}

void tst_QGraphicsItem::setRotation()

{

    QGraphicsScene scene;

    QGraphicsItem *item = scene.addRect(QRectF(0, 0, 100, 100));

    QBENCHMARK {

        item->setRotation(45);

        item->transform(); // prevent lazy optimizing

    }

}

QTEST_MAIN(tst_QGraphicsItem)

#include "tst_qgraphicsitem.moc"