Add tests/auto/qgraphicseffectsource.

2 files changed, 326 insertions, 0 deletions

diff --git a/tests/auto/qgraphicseffectsource/qgraphicseffectsource.pro b/tests/auto/qgraphicseffectsource/qgraphicseffectsource.pro
new file mode 100644
index 0000000..d506c6d
--- /dev/null
+++ b/tests/auto/qgraphicseffectsource/qgraphicseffectsource.pro
@@ -0,0 +1,3 @@
+load(qttest_p4)
+SOURCES  += tst_qgraphicseffectsource.cpp
+
diff --git a/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp b/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp
new file mode 100644
index 0000000..e7f7ba5
--- /dev/null
+++ b/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp
@@ -0,0 +1,323 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <QtGui/qgraphicseffect.h>
+#include <QtGui/qgraphicsview.h>
+#include <QtGui/qgraphicsscene.h>
+#include <QtGui/qgraphicsitem.h>
+#include <QtGui/qstyleoption.h>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class CustomItem : public QGraphicsRectItem
+{
+public:
+    CustomItem(qreal x, qreal y, qreal width, qreal height)
+        : QGraphicsRectItem(x, y, width, height), numRepaints(0),
+          m_painter(0), m_styleOption(0)
+    {}
+
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+    {
+        m_painter = painter;
+        m_styleOption = option;
+        ++numRepaints;
+        QGraphicsRectItem::paint(painter, option, widget);
+    }
+
+    void reset()
+    {
+        numRepaints = 0;
+        m_painter = 0;
+        m_styleOption = 0;
+    }
+
+    int numRepaints;
+    QPainter *m_painter;
+    const QStyleOption *m_styleOption;
+};
+
+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_styleOption(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_styleOption = 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, QGraphicsEffectSource *source)
+    {
+        ++numRepaints;
+        if (storeDeviceDependentStuff) {
+            deviceCoordinatesPixmap = source->pixmap(Qt::DeviceCoordinates);
+            deviceRect = source->deviceRect();
+            sourceDeviceBoundingRect = source->boundingRect(Qt::DeviceCoordinates);
+        }
+        if (doNothingInDraw)
+            return;
+        m_source = source;
+        m_painter = painter;
+        m_styleOption = source->styleOption();
+        source->draw(painter);
+    }
+
+    void sourceChanged()
+    { 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;
+    const QStyleOption *m_styleOption;
+    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 deviceRect();
+    void pixmap();
+
+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(), 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();
+    QTest::qWait(50);
+    QCOMPARE(item->numRepaints, 1);
+    QCOMPARE(effect->numRepaints, 1);
+    QVERIFY(effect->m_styleOption);
+    QCOMPARE(effect->m_styleOption, item->m_styleOption);
+}
+
+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<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();
+    QTest::qWait(50);
+
+    QCOMPARE(item->numRepaints, 1);
+    QCOMPARE(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();
+    QTest::qWait(50);
+    const QTransform deviceTransform = item->deviceTransform(view->viewportTransform());
+    QCOMPARE(effect->sourceDeviceBoundingRect, deviceTransform.mapRect(itemBoundingRect));
+
+    // Bounding rect in logical coordinates is of course fine.
+    QCOMPARE(effect->source()->boundingRect(Qt::LogicalCoordinates), itemBoundingRect);
+    // Make sure default value is Qt::LogicalCoordinates.
+    QCOMPARE(effect->source()->boundingRect(), itemBoundingRect);
+}
+
+void tst_QGraphicsEffectSource::deviceRect()
+{
+    QTest::ignoreMessage(QtWarningMsg, "QGraphicsEffectSource::deviceRect: Not yet implemented, lacking device context");
+    QCOMPARE(effect->source()->deviceRect(), QRect());
+
+    // We can at least check that the rect was correct in QGraphicsEffect::draw.
+    effect->storeDeviceDependentStuff = true;
+    effect->source()->update();
+    QTest::qWait(50);
+    QCOMPARE(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();
+    QTest::qWait(50);
+    QVERIFY(!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);
+}
+
+QTEST_MAIN(tst_QGraphicsEffectSource)
+#include "tst_qgraphicseffectsource.moc"
+