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#include <QtTest/QtTest>

#include <qgraphicsgridlayout.h>

#include <qgraphicswidget.h>

#include <qgraphicsscene.h>

#include <qgraphicsview.h>

class tst_QGraphicsGridLayout : public QObject

{

    Q_OBJECT

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

    void cleanup();

private slots:

    void qgraphicsgridlayout_data();

    void qgraphicsgridlayout();

    void addItem_data();

    void addItem();

    void alignment();

    void alignment2();

    void alignment2_data();

    void columnAlignment();

    void columnCount();

    void columnMaximumWidth();

    void columnMinimumWidth();

    void columnPreferredWidth();

    void setColumnFixedWidth();

    void columnSpacing();

    void columnStretchFactor();

    void count();

    void contentsMargins();

    void horizontalSpacing_data();

    void horizontalSpacing();

    void itemAt();

    void removeAt();

    void rowAlignment();

    void rowCount();

    void rowMaximumHeight();

    void rowMinimumHeight();

    void rowPreferredHeight();

    void rowSpacing();

    void rowStretchFactor();

    void setColumnSpacing_data();

    void setColumnSpacing();

    void setGeometry_data();

    void setGeometry();

    void setRowFixedHeight();

    void setRowSpacing_data();

    void setRowSpacing();

    void setSpacing_data();

    void setSpacing();

    void sizeHint_data();

    void sizeHint();

    void verticalSpacing_data();

    void verticalSpacing();

    void layoutDirection();

    void removeLayout();

    void defaultStretchFactors_data();

    void defaultStretchFactors();

    void geometries_data();

    void geometries();

    void avoidRecursionInInsertItem();

    void task236367_maxSizeHint();

};

// This will be called before the first test function is executed.

// It is only called once.

void tst_QGraphicsGridLayout::initTestCase()

{

}

// This will be called after the last test function is executed.

// It is only called once.

void tst_QGraphicsGridLayout::cleanupTestCase()

{

}

// This will be called before each test function is executed.

void tst_QGraphicsGridLayout::init()

{

#ifdef Q_OS_WINCE //disable magic for WindowsCE

    qApp->setAutoMaximizeThreshold(-1);

#endif

}

// This will be called after every test function.

void tst_QGraphicsGridLayout::cleanup()

{

}

void tst_QGraphicsGridLayout::qgraphicsgridlayout_data()

{

}

void tst_QGraphicsGridLayout::qgraphicsgridlayout()

{

    QGraphicsGridLayout layout;

    QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::addItem: invalid row span/column span: 0");

    layout.addItem(0, 0, 0, 0, 0);

    QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::addItem: cannot add null item");

    layout.addItem(0, 0, 0);

    layout.alignment(0);

    layout.columnAlignment(0);

    layout.columnCount();

    layout.columnMaximumWidth(0);

    layout.columnMinimumWidth(0);

    layout.columnPreferredWidth(0);

    layout.columnSpacing(0);

    layout.columnStretchFactor(0);

    layout.count();

    layout.horizontalSpacing();

    QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::itemAt: invalid row, column 0, 0");

    layout.itemAt(0, 0);

    QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::itemAt: invalid index 0");

    layout.itemAt(0);

    QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::removeAt: invalid index 0");

    layout.removeAt(0);

    layout.rowAlignment(0);

    layout.rowCount();

    layout.rowMaximumHeight(0);

    layout.rowMinimumHeight(0);

    layout.rowPreferredHeight(0);

    layout.rowSpacing(0);

    layout.rowStretchFactor(0);

    layout.setAlignment(0, Qt::AlignRight);

    layout.setColumnAlignment(0, Qt::AlignRight);

    layout.setColumnFixedWidth(0, 0);

    layout.setColumnMaximumWidth(0, 0);

    layout.setColumnMinimumWidth(0, 0);

    layout.setColumnPreferredWidth(0, 0);

    layout.setColumnSpacing(0, 0);

    layout.setColumnStretchFactor(0, 0);

    layout.setGeometry(QRectF());

    layout.setHorizontalSpacing(0);

    layout.setRowAlignment(0, 0);

    layout.setRowFixedHeight(0, 0);

    layout.setRowMaximumHeight(0, 0);

    layout.setRowMinimumHeight(0, 0);

    layout.setRowPreferredHeight(0, 0);

    layout.setRowSpacing(0, 0);

    layout.setRowStretchFactor(0, 0);

    layout.setSpacing(0);

    layout.setVerticalSpacing(0);

    layout.sizeHint(Qt::MinimumSize);

    layout.verticalSpacing();

}

class RectWidget : public QGraphicsWidget

{

public:

    RectWidget(QGraphicsItem *parent = 0) : QGraphicsWidget(parent){}

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

    {

        Q_UNUSED(option);

        Q_UNUSED(widget);

        painter->drawRoundRect(rect());

        painter->drawLine(rect().topLeft(), rect().bottomRight());

        painter->drawLine(rect().bottomLeft(), rect().topRight());

    }

    QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const

    {

        if (m_sizeHints[which].isValid()) {

            return m_sizeHints[which];

        }

        return QGraphicsWidget::sizeHint(which, constraint);

    }

    void setSizeHint(Qt::SizeHint which, const QSizeF &size) {

        m_sizeHints[which] = size;

        updateGeometry();

    }

    QSizeF m_sizeHints[Qt::NSizeHints];

};

static void populateLayout(QGraphicsGridLayout *gridLayout, int width, int height)

{

    for (int y = 0; y < height; ++y) {

        for (int x = 0; x < width; ++x) {

            QGraphicsWidget *item = new RectWidget();

            item->setMinimumSize(10, 10);

            item->setPreferredSize(25, 25);

            item->setMaximumSize(50, 50);

            gridLayout->addItem(item, y, x);

        }

    }

}

/** populates \a gridLayout with a 3x2 layout:

 * +----+----+----+

 * |+---|---+|xxxx|

 * ||span=2 ||hole|

 * |+---|---+|xxxx|

 * +----+----+----+

 * |xxxx|+---|---+|

 * |hole||span=2 ||

 * |xxxx|+---|---+|

 * +----+----+----+

 */

static void populateLayoutWithSpansAndHoles(QGraphicsGridLayout *gridLayout)

{

    QGraphicsWidget *item = new RectWidget();

    item->setMinimumSize(10, 10);

    item->setPreferredSize(25, 25);

    item->setMaximumSize(50, 50);

    gridLayout->addItem(item, 0, 0, 1, 2);

    item = new RectWidget();

    item->setMinimumSize(10, 10);

    item->setPreferredSize(25, 25);

    item->setMaximumSize(50, 50);

    gridLayout->addItem(item, 1, 1, 1, 2);

}

Q_DECLARE_METATYPE(Qt::Alignment)

void tst_QGraphicsGridLayout::addItem_data()

{

    QTest::addColumn<int>("row");

    QTest::addColumn<int>("column");

    QTest::addColumn<int>("rowSpan");

    QTest::addColumn<int>("columnSpan");

    QTest::addColumn<Qt::Alignment>("alignment");

    for (int a = -1; a < 3; ++a) {

    for (int b = -1; b < 2; ++b) {

    for (int c = -1; c < 2; ++c) {

    for (int d = -1; d < 2; ++d) {

    for (int e = 0; e < 9; ++e) {

        int row = a;

        int column = b;

        int rowSpan = c;

        int columnSpan = d;

        QString name = QString::fromAscii("(%1,%2,%3,%4").arg(a).arg(b).arg(c).arg(d);

        Qt::Alignment alignment = Qt::AlignLeft;

        QTest::newRow(name.toLatin1()) << row << column << rowSpan << columnSpan << alignment;

    }}}}}

}

// public void addItem(QGraphicsLayoutItem* item, int row, int column, int rowSpan, int columnSpan, Qt::Alignment alignment = 0)

void tst_QGraphicsGridLayout::addItem()

{

    QFETCH(int, row);

    QFETCH(int, column);

    QFETCH(int, rowSpan);

    QFETCH(int, columnSpan);

    QFETCH(Qt::Alignment, alignment);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout;

    QGraphicsWidget *wid = new QGraphicsWidget;

    if (row < 0 || column < 0) {

        QTest::ignoreMessage(QtWarningMsg, "QGraphicsGridLayout::addItem: invalid row/column: -1");

    } else if (rowSpan < 1 || columnSpan < 1) {

        char buf[1024];

        ::qsnprintf(buf, sizeof(buf), "QGraphicsGridLayout::addItem: invalid row span/column span: %d",

            rowSpan < 1 ? rowSpan : columnSpan);

        QTest::ignoreMessage(QtWarningMsg, buf);

    }

    layout->addItem(wid, row, column, rowSpan, columnSpan, alignment);

    delete layout;

}

// public Qt::Alignment alignment(QGraphicsLayoutItem* item) const

void tst_QGraphicsGridLayout::alignment()

{

#ifdef Q_WS_MAC

    QSKIP("Resizing a QGraphicsWidget to effectiveSizeHint(Qt::MaximumSize) is currently not supported on mac", SkipAll);

#endif

    QGraphicsScene scene;

    QGraphicsView view(&scene);

    QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout();

    scene.addItem(widget);

    widget->setLayout(layout);

    populateLayout(layout, 3, 2);

    layout->setContentsMargins(0, 0, 0, 0);

    layout->setSpacing(0);

    view.show();

    widget->show();

    widget->resize(widget->effectiveSizeHint(Qt::PreferredSize));

    QApplication::processEvents();

    // no alignment (the default)

    QCOMPARE(layout->itemAt(0, 0)->geometry().left(), 0.0);

    QCOMPARE(layout->itemAt(0, 0)->geometry().right(), layout->itemAt(0, 1)->geometry().left());

    QCOMPARE(layout->itemAt(0, 1)->geometry().left(), 25.0);

    QCOMPARE(layout->itemAt(0, 1)->geometry().right(), layout->itemAt(0, 2)->geometry().left());

    QCOMPARE(layout->itemAt(0, 2)->geometry().left(), 50.0);

    QCOMPARE(layout->itemAt(0, 2)->geometry().right(), 75.0);

    QCOMPARE(layout->itemAt(1, 0)->geometry().left(), 0.0);

    QCOMPARE(layout->itemAt(1, 0)->geometry().right(), layout->itemAt(1, 1)->geometry().left());

    QCOMPARE(layout->itemAt(1, 1)->geometry().left(), 25.0);

    QCOMPARE(layout->itemAt(1, 1)->geometry().right(), layout->itemAt(1, 2)->geometry().left());

    QCOMPARE(layout->itemAt(1, 2)->geometry().left(), 50.0);

    QCOMPARE(layout->itemAt(1, 2)->geometry().right(), 75.0);

    QCOMPARE(layout->itemAt(0, 0)->geometry().top(), 0.0);

    QCOMPARE(layout->itemAt(0, 0)->geometry().bottom(), layout->itemAt(1, 0)->geometry().top());

    QCOMPARE(layout->itemAt(1, 0)->geometry().top(), 25.0);

    QCOMPARE(layout->itemAt(1, 0)->geometry().bottom(), 50.0);

    // align first column left, second hcenter, third right

    layout->setColumnMinimumWidth(0, 100);

    layout->setAlignment(layout->itemAt(0,0), Qt::AlignLeft);

    layout->setAlignment(layout->itemAt(1,0), Qt::AlignLeft);

    layout->setColumnMinimumWidth(1, 100);

    layout->setAlignment(layout->itemAt(0,1), Qt::AlignHCenter);

    layout->setAlignment(layout->itemAt(1,1), Qt::AlignHCenter);

    layout->setColumnMinimumWidth(2, 100);

    layout->setAlignment(layout->itemAt(0,2), Qt::AlignRight);

    layout->setAlignment(layout->itemAt(1,2), Qt::AlignRight);

    widget->resize(widget->effectiveSizeHint(Qt::MaximumSize));

    QApplication::processEvents();

    QCOMPARE(layout->itemAt(0,0)->geometry(), QRectF(0,    0,  50,  25));

    QCOMPARE(layout->itemAt(1,0)->geometry(), QRectF(0,   25,  50,  25));

    QCOMPARE(layout->itemAt(0,1)->geometry(), QRectF(125,  0,  50,  25));

    QCOMPARE(layout->itemAt(1,1)->geometry(), QRectF(125, 25,  50,  25));

    QCOMPARE(layout->itemAt(0,2)->geometry(), QRectF(250,  0,  50,  25));

    QCOMPARE(layout->itemAt(1,2)->geometry(), QRectF(250, 25,  50,  25));

    delete widget;

}

// public void setColumnAlignment(int column, Qt::Alignment alignment)

// public Qt::Alignment columnAlignment(int column) const

void tst_QGraphicsGridLayout::columnAlignment()

{

#ifdef Q_WS_MAC

    QSKIP("Resizing a QGraphicsWidget to effectiveSizeHint(Qt::MaximumSize) is currently not supported on mac", SkipAll);

#endif

    QGraphicsScene scene;

    QGraphicsView view(&scene);

    QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout();

    scene.addItem(widget);

    widget->setLayout(layout);

    populateLayout(layout, 3, 2);

    layout->setContentsMargins(0, 0, 0, 0);

    layout->setSpacing(1);

    widget->setContentsMargins(0, 0, 0, 0);

    layout->setColumnMinimumWidth(0, 100);

    layout->setColumnMinimumWidth(1, 100);

    layout->setColumnMinimumWidth(2, 100);

    view.resize(450,150);

    widget->resize(widget->effectiveSizeHint(Qt::MaximumSize));

    view.show();

    widget->show();

    QApplication::processEvents();

    // Check default

    QCOMPARE(layout->columnAlignment(0), 0);

    QCOMPARE(layout->columnAlignment(1), 0);

    QCOMPARE(layout->columnAlignment(2), 0);

    layout->setColumnAlignment(0, Qt::AlignLeft);

    layout->setColumnAlignment(1, Qt::AlignHCenter);

    layout->setColumnAlignment(2, Qt::AlignRight);

    // see if item alignment takes preference over columnAlignment

    layout->setAlignment(layout->itemAt(1,0), Qt::AlignHCenter);

    layout->setAlignment(layout->itemAt(1,1), Qt::AlignRight);

    layout->setAlignment(layout->itemAt(1,2), Qt::AlignLeft);

    QApplication::processEvents();  // process LayoutRequest

    /*

      +----------+------------+---------+

      | Left     |  HCenter   |  Right  |

      +----------+------------+---------+

      | HCenter  |   Right    |   Left  |

      +---------------------------------+

    */

    QCOMPARE(layout->itemAt(0,0)->geometry(), QRectF(0,   0,   50,  25));

    QCOMPARE(layout->itemAt(1,0)->geometry(), QRectF(25,  26,  50,  25));   // item is king

    QCOMPARE(layout->itemAt(0,1)->geometry(), QRectF(126,  0,  50,  25));

    QCOMPARE(layout->itemAt(1,1)->geometry(), QRectF(151, 26,  50,  25));   // item is king

    QCOMPARE(layout->itemAt(0,2)->geometry(), QRectF(252,  0,  50,  25));

    QCOMPARE(layout->itemAt(1,2)->geometry(), QRectF(202, 26,  50,  25));   // item is king

    delete widget;

}

// public int columnCount() const

void tst_QGraphicsGridLayout::columnCount()

{

    QGraphicsScene scene;

    QGraphicsView view(&scene);

    QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout();

    scene.addItem(widget);

    widget->setLayout(layout);

    layout->setContentsMargins(0, 0, 0, 0);

    layout->setSpacing(0);

    widget->setContentsMargins(0, 0, 0, 0);

    view.show();

    widget->show();

    QApplication::processEvents();

    QCOMPARE(layout->columnCount(), 0);

    layout->addItem(new RectWidget(widget), 0, 0);

    QCOMPARE(layout->columnCount(), 1);

    layout->addItem(new RectWidget(widget), 1, 1);

    QCOMPARE(layout->columnCount(), 2);

    layout->addItem(new RectWidget(widget), 0, 2);

    QCOMPARE(layout->columnCount(), 3);

    layout->addItem(new RectWidget(widget), 1, 0);

    QCOMPARE(layout->columnCount(), 3);

    layout->addItem(new RectWidget(widget), 0, 1);

    QCOMPARE(layout->columnCount(), 3);

    layout->addItem(new RectWidget(widget), 1, 2);

    QCOMPARE(layout->columnCount(), 3);

    // ### Talk with Jasmin. Not sure if removeAt() should adjust columnCount().

    widget->setLayout(0);

    layout = new QGraphicsGridLayout();

    populateLayout(layout, 3, 2);

    QCOMPARE(layout->columnCount(), 3);

    layout->removeAt(5);

    layout->removeAt(3);

    QCOMPARE(layout->columnCount(), 3);

    layout->removeAt(1);

    QCOMPARE(layout->columnCount(), 3);

    layout->removeAt(0);

    QCOMPARE(layout->columnCount(), 3);

    layout->removeAt(0);

    QCOMPARE(layout->columnCount(), 2);

    delete widget;

}

// public qreal columnMaximumWidth(int column) const

void tst_QGraphicsGridLayout::columnMaximumWidth()

{

    QGraphicsScene scene;

    QGraphicsView view(&scene);

    QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout();

    scene.addItem(widget);

    widget->setLayout(layout);

    populateLayout(layout, 3, 2);

    layout->setContentsMargins(0, 0, 0, 0);

    layout->setSpacing(0);

    // should at least be a very large number

    QVERIFY(layout->columnMaximumWidth(0) >= 10000);

    QCOMPARE(layout->columnMaximumWidth(0), layout->columnMaximumWidth(1));

    QCOMPARE(layout->columnMaximumWidth(1), layout->columnMaximumWidth(2));

    layout->setColumnMaximumWidth(0, 20);

    layout->setColumnMaximumWidth(2, 60);

    view.show();

    widget->show();

    widget->resize(widget->effectiveSizeHint(Qt::PreferredSize));

    QApplication::processEvents();

    QCOMPARE(layout->itemAt(0,0)->geometry().width(), 20.0);

    QCOMPARE(layout->itemAt(1,0)->geometry().width(), 20.0);

    QCOMPARE(layout->itemAt(0,1)->geometry().width(), 25.0);

    QCOMPARE(layout->itemAt(1,1)->geometry().width(), 25.0);

    QCOMPARE(layout->itemAt(0,2)->geometry().width(), 25.0);

    QCOMPARE(layout->itemAt(1,2)->geometry().width(), 25.0);

    delete widget;

}

// public qreal columnMinimumWidth(int column) const

void tst_QGraphicsGridLayout::columnMinimumWidth()

{

    QGraphicsScene scene;

    QGraphicsView view(&scene);

    QGraphicsWidget *widget = new QGraphicsWidget(0, Qt::Window);

    QGraphicsGridLayout *layout = new QGraphicsGridLayout();

    scene.addItem(widget);

    widget->setLayout(layout);

    populateLayout(layout, 3, 2);