6ae7a02104
Remove around 1000 compiler warnings about missing overrides in our auto tests. This significantly reduce the compiler warning noise in our auto tests, so that one can actually better see the real problems inbetween. Change-Id: Id0c04dba43fcaf55d8cd2b5c6697358857c31bf9 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
743 lines
22 KiB
C++
743 lines
22 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTestWidgets>
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#include <QtWidgets/qgraphicseffect.h>
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#include <QtWidgets/qgraphicsview.h>
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#include <QtWidgets/qgraphicsscene.h>
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#include <QtWidgets/qgraphicsitem.h>
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#include <QtWidgets/qgraphicswidget.h>
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#include <QtWidgets/qstyleoption.h>
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#include <private/qgraphicseffect_p.h>
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class tst_QGraphicsEffect : 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 setEnabled();
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void source();
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void boundingRectFor();
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void boundingRect();
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void boundingRect2();
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void draw();
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void opacity();
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void grayscale();
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void colorize();
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void drawPixmapItem();
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void deviceCoordinateTranslateCaching();
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void inheritOpacity();
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void dropShadowClipping();
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void childrenVisibilityShouldInvalidateCache();
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void prepareGeometryChangeInvalidateCache();
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void itemHasNoContents();
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};
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void tst_QGraphicsEffect::initTestCase()
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{}
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class CustomItem : public QGraphicsRectItem
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{
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public:
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CustomItem(qreal x, qreal y, qreal width, qreal height, QGraphicsItem *parent = 0)
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: QGraphicsRectItem(x, y, width, height, parent), numRepaints(0),
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m_painter(0), m_styleOption(0)
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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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m_painter = painter;
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m_styleOption = option;
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++numRepaints;
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QGraphicsRectItem::paint(painter, option, widget);
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}
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void reset()
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{
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numRepaints = 0;
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m_painter = 0;
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m_styleOption = 0;
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}
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int numRepaints;
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QPainter *m_painter;
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const QStyleOption *m_styleOption;
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};
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class CustomEffect : public QGraphicsEffect
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{
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public:
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CustomEffect()
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: QGraphicsEffect(), numRepaints(0), m_margin(10),
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doNothingInDraw(false), m_painter(0), m_styleOption(0), m_source(0), m_opacity(1.0)
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{}
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QRectF boundingRectFor(const QRectF &rect) const override
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{ return rect.adjusted(-m_margin, -m_margin, m_margin, m_margin); }
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void reset()
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{
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numRepaints = 0;
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m_sourceChangedFlags = QGraphicsEffect::ChangeFlags();
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m_painter = 0;
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m_styleOption = 0;
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m_source = 0;
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m_opacity = 1.0;
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}
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void setMargin(int margin)
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{
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m_margin = margin;
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updateBoundingRect();
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}
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int margin() const
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{ return m_margin; }
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void draw(QPainter *painter) override
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{
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++numRepaints;
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if (doNothingInDraw)
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return;
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m_source = source();
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m_painter = painter;
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m_styleOption = source()->styleOption();
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m_opacity = painter->opacity();
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drawSource(painter);
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}
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void sourceChanged(QGraphicsEffect::ChangeFlags flags) override
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{ m_sourceChangedFlags |= flags; }
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int numRepaints;
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int m_margin;
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QGraphicsEffect::ChangeFlags m_sourceChangedFlags;
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bool doNothingInDraw;
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QPainter *m_painter;
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const QStyleOption *m_styleOption;
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QGraphicsEffectSource *m_source;
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qreal m_opacity;
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};
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void tst_QGraphicsEffect::setEnabled()
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{
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CustomEffect effect;
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QVERIFY(effect.isEnabled());
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effect.setEnabled(false);
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QVERIFY(!effect.isEnabled());
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}
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void tst_QGraphicsEffect::source()
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{
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QPointer<CustomEffect> effect = new CustomEffect;
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QVERIFY(!effect->source());
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QVERIFY(!effect->m_sourceChangedFlags);
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// Install effect on QGraphicsItem.
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QGraphicsItem *item = new QGraphicsRectItem(0, 0, 10, 10);
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item->setGraphicsEffect(effect);
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QVERIFY(effect->source());
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QCOMPARE(effect->source()->graphicsItem(), (const QGraphicsItem*)item);
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QVERIFY(effect->m_sourceChangedFlags & QGraphicsEffect::SourceAttached);
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effect->reset();
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// Make sure disabling/enabling the effect doesn't change the source.
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effect->setEnabled(false);
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QVERIFY(effect->source());
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QCOMPARE(effect->source()->graphicsItem(), (const QGraphicsItem*)item);
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QVERIFY(!effect->m_sourceChangedFlags);
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effect->reset();
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effect->setEnabled(true);
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QVERIFY(effect->source());
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QCOMPARE(effect->source()->graphicsItem(), (const QGraphicsItem*)item);
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QVERIFY(!effect->m_sourceChangedFlags);
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effect->reset();
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// Uninstall effect on QGraphicsItem.
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effect->reset();
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item->setGraphicsEffect(0);
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QVERIFY(!effect);
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effect = new CustomEffect;
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// The item takes ownership and should delete the effect when destroyed.
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item->setGraphicsEffect(effect);
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QPointer<QGraphicsEffectSource> source = effect->source();
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QVERIFY(source);
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QCOMPARE(source->graphicsItem(), (const QGraphicsItem*)item);
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delete item;
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QVERIFY(!effect);
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QVERIFY(!source);
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}
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void tst_QGraphicsEffect::boundingRectFor()
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{
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CustomEffect effect;
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int margin = effect.margin();
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const QRectF source(0, 0, 100, 100);
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QCOMPARE(effect.boundingRectFor(source), source.adjusted(-margin, -margin, margin, margin));
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effect.setMargin(margin = 20);
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QCOMPARE(effect.boundingRectFor(source), source.adjusted(-margin, -margin, margin, margin));
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}
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void tst_QGraphicsEffect::boundingRect()
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{
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// No source; empty bounding rect.
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CustomEffect *effect = new CustomEffect;
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QCOMPARE(effect->boundingRect(), QRectF());
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// Install effect on QGraphicsItem.
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QRectF itemRect(0, 0, 100, 100);
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QGraphicsRectItem *item = new QGraphicsRectItem;
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item->setPen(QPen(Qt::black, 0));
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item->setRect(itemRect);
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item->setGraphicsEffect(effect);
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int margin = effect->margin();
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QCOMPARE(effect->boundingRect(), itemRect.adjusted(-margin, -margin, margin, margin));
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(itemRect));
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// Make sure disabling/enabling the effect doesn't change the bounding rect.
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effect->setEnabled(false);
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QCOMPARE(effect->boundingRect(), itemRect.adjusted(-margin, -margin, margin, margin));
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(itemRect));
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effect->setEnabled(true);
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QCOMPARE(effect->boundingRect(), itemRect.adjusted(-margin, -margin, margin, margin));
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(itemRect));
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// Change effect margins.
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effect->setMargin(margin = 20);
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QCOMPARE(effect->boundingRect(), itemRect.adjusted(-margin, -margin, margin, margin));
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(itemRect));
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// Uninstall effect on QGraphicsItem.
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QPointer<CustomEffect> ptr = effect;
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item->setGraphicsEffect(0);
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QVERIFY(!ptr);
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delete item;
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}
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void tst_QGraphicsEffect::boundingRect2()
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{
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CustomEffect *effect = new CustomEffect;
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QGraphicsRectItem *root = new QGraphicsRectItem;
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root->setPen(QPen(Qt::black, 0));
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root->setGraphicsEffect(effect);
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QGraphicsRectItem *child = new QGraphicsRectItem;
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QRectF childRect(0, 0, 100, 100);
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child->setPen(QPen(Qt::black, 0));
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
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child->setRect(childRect);
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child->setParentItem(root);
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QGraphicsRectItem *grandChild = new QGraphicsRectItem;
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QRectF grandChildRect(0, 0, 200, 200);
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grandChild->setPen(QPen(Qt::black, 0));
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grandChild->setRect(grandChildRect);
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grandChild->setParentItem(child);
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// Make sure the effect's bounding rect is clipped to the child's bounding rect.
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect));
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// Disable ItemClipsChildrenToShape; effect's bounding rect is no longer clipped.
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
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// Add root item to a scene, do the same tests as above. Results should be the same.
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QGraphicsScene scene;
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scene.addItem(root);
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect));
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
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// Now add the scene to a view, results should be the same.
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QGraphicsView view(&scene);
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect));
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child->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
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CustomEffect *childEffect = new CustomEffect;
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child->setGraphicsEffect(childEffect);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childEffect->boundingRectFor(childRect | grandChildRect)));
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child->setGraphicsEffect(0);
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QCOMPARE(effect->boundingRect(), effect->boundingRectFor(childRect | grandChildRect));
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}
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void tst_QGraphicsEffect::draw()
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{
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QGraphicsScene scene;
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CustomItem *item = new CustomItem(0, 0, 100, 100);
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scene.addItem(item);
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QGraphicsView view(&scene);
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view.show();
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QVERIFY(QTest::qWaitForWindowExposed(&view));
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QTRY_VERIFY(item->numRepaints > 0);
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QCoreApplication::processEvents(); // Process all queued paint events
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item->reset();
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// Make sure installing the effect triggers a repaint.
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CustomEffect *effect = new CustomEffect;
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item->setGraphicsEffect(effect);
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QTRY_COMPARE(effect->numRepaints, 1);
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QTRY_COMPARE(item->numRepaints, 1);
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// Make sure QPainter* and QStyleOptionGraphicsItem* stays persistent
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// during QGraphicsEffect::draw/QGraphicsItem::paint.
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QVERIFY(effect->m_painter);
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QCOMPARE(effect->m_painter, item->m_painter);
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QCOMPARE(effect->m_styleOption, item->m_styleOption);
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// Make sure QGraphicsEffect::source is persistent.
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QCOMPARE(effect->m_source, effect->source());
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effect->reset();
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item->reset();
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// Make sure updating the source triggers a repaint.
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item->update();
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QTRY_COMPARE(effect->numRepaints, 1);
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QTRY_COMPARE(item->numRepaints, 1);
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QVERIFY(effect->m_sourceChangedFlags & QGraphicsEffect::SourceInvalidated);
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effect->reset();
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item->reset();
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// Make sure changing the effect's bounding rect triggers a repaint.
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effect->setMargin(20);
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QTRY_COMPARE(effect->numRepaints, 1);
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QTRY_COMPARE(item->numRepaints, 1);
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effect->reset();
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item->reset();
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// Make sure change the item's bounding rect triggers a repaint.
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item->setRect(0, 0, 50, 50);
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QTRY_COMPARE(effect->numRepaints, 1);
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QTRY_COMPARE(item->numRepaints, 1);
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QVERIFY(effect->m_sourceChangedFlags & QGraphicsEffect::SourceBoundingRectChanged);
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effect->reset();
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item->reset();
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// Make sure the effect is the one to issue a repaint of the item.
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effect->doNothingInDraw = true;
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item->update();
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QTRY_COMPARE(effect->numRepaints, 1);
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QCOMPARE(item->numRepaints, 0);
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effect->doNothingInDraw = false;
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effect->reset();
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item->reset();
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// Make sure we update the source when disabling/enabling the effect.
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effect->setEnabled(false);
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QTRY_COMPARE(item->numRepaints, 1);
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QCOMPARE(effect->numRepaints, 0);
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effect->reset();
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item->reset();
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effect->setEnabled(true);
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QTRY_COMPARE(effect->numRepaints, 1);
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QTRY_COMPARE(item->numRepaints, 1);
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effect->reset();
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item->reset();
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// Effect is already enabled; nothing should happen.
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effect->setEnabled(true);
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QTest::qWait(50);
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QCOMPARE(effect->numRepaints, 0);
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QCOMPARE(item->numRepaints, 0);
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// Make sure uninstalling an effect triggers a repaint.
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QPointer<CustomEffect> ptr = effect;
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item->setGraphicsEffect(0);
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QVERIFY(!ptr);
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QTRY_COMPARE(item->numRepaints, 1);
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}
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void tst_QGraphicsEffect::opacity()
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{
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// Make sure the painter's opacity is correct in QGraphicsEffect::draw.
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QGraphicsScene scene;
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CustomItem *item = new CustomItem(0, 0, 100, 100);
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item->setOpacity(0.5);
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CustomEffect *effect = new CustomEffect;
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item->setGraphicsEffect(effect);
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scene.addItem(item);
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QGraphicsView view(&scene);
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view.show();
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QVERIFY(QTest::qWaitForWindowExposed(&view));
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QTRY_VERIFY(effect->numRepaints > 0);
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QCOMPARE(effect->m_opacity, qreal(0.5));
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}
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void tst_QGraphicsEffect::grayscale()
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{
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if (qApp->desktop()->depth() < 24)
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QSKIP("Test only works on 32 bit displays");
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QGraphicsScene scene(0, 0, 100, 100);
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QGraphicsRectItem *item = scene.addRect(0, 0, 50, 50);
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item->setPen(Qt::NoPen);
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item->setBrush(QColor(122, 193, 66)); // Qt light green
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QGraphicsColorizeEffect *effect = new QGraphicsColorizeEffect;
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effect->setColor(Qt::black);
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item->setGraphicsEffect(effect);
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QPainter painter;
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QImage image(100, 100, QImage::Format_ARGB32_Premultiplied);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(148, 148, 148));
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effect->setStrength(0.5);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(135, 171, 107));
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effect->setStrength(0.0);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(122, 193, 66));
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}
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void tst_QGraphicsEffect::colorize()
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{
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if (qApp->desktop()->depth() < 24)
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QSKIP("Test only works on 32 bit displays");
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QGraphicsScene scene(0, 0, 100, 100);
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QGraphicsRectItem *item = scene.addRect(0, 0, 50, 50);
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item->setPen(Qt::NoPen);
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item->setBrush(QColor(122, 193, 66)); // Qt light green
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QGraphicsColorizeEffect *effect = new QGraphicsColorizeEffect;
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effect->setColor(QColor(102, 153, 51)); // Qt dark green
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item->setGraphicsEffect(effect);
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QPainter painter;
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QImage image(100, 100, QImage::Format_ARGB32_Premultiplied);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(191, 212, 169));
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effect->setStrength(0.5);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(156, 203, 117));
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effect->setStrength(0.0);
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image.fill(0);
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painter.begin(&image);
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painter.setRenderHint(QPainter::Antialiasing);
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scene.render(&painter);
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painter.end();
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QCOMPARE(image.pixel(10, 10), qRgb(122, 193, 66));
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}
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|
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class PixmapItemEffect : public QGraphicsEffect
|
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{
|
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public:
|
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PixmapItemEffect(const QPixmap &source)
|
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: QGraphicsEffect()
|
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, pixmap(source)
|
|
, repaints(0)
|
|
{}
|
|
|
|
QRectF boundingRectFor(const QRectF &rect) const override
|
|
{ return rect; }
|
|
|
|
void draw(QPainter *painter) override
|
|
{
|
|
QCOMPARE(sourcePixmap(Qt::LogicalCoordinates).handle(), pixmap.handle());
|
|
QVERIFY((painter->worldTransform().type() <= QTransform::TxTranslate) == (sourcePixmap(Qt::DeviceCoordinates).handle() == pixmap.handle()));
|
|
|
|
++repaints;
|
|
}
|
|
QPixmap pixmap;
|
|
int repaints;
|
|
};
|
|
|
|
void tst_QGraphicsEffect::drawPixmapItem()
|
|
{
|
|
QImage image(32, 32, QImage::Format_RGB32);
|
|
QPainter p(&image);
|
|
p.fillRect(0, 0, 32, 16, Qt::blue);
|
|
p.fillRect(0, 16, 32, 16, Qt::red);
|
|
p.end();
|
|
|
|
QGraphicsScene scene;
|
|
QGraphicsPixmapItem *item = new QGraphicsPixmapItem(QPixmap::fromImage(image));
|
|
scene.addItem(item);
|
|
|
|
PixmapItemEffect *effect = new PixmapItemEffect(item->pixmap());
|
|
item->setGraphicsEffect(effect);
|
|
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
QTRY_VERIFY(effect->repaints >= 1);
|
|
|
|
item->setTransform(QTransform().rotate(180), true);
|
|
|
|
QTRY_VERIFY(effect->repaints >= 2);
|
|
}
|
|
|
|
class DeviceEffect : public QGraphicsEffect
|
|
{
|
|
public:
|
|
QRectF boundingRectFor(const QRectF &rect) const override
|
|
{ return rect; }
|
|
|
|
void draw(QPainter *painter) override
|
|
{
|
|
QPoint offset;
|
|
QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset, QGraphicsEffect::NoPad);
|
|
|
|
if (pixmap.isNull())
|
|
return;
|
|
|
|
painter->save();
|
|
painter->setWorldTransform(QTransform());
|
|
painter->drawPixmap(offset, pixmap);
|
|
painter->restore();
|
|
}
|
|
};
|
|
|
|
void tst_QGraphicsEffect::deviceCoordinateTranslateCaching()
|
|
{
|
|
QGraphicsScene scene;
|
|
CustomItem *item = new CustomItem(0, 0, 10, 10);
|
|
scene.addItem(item);
|
|
scene.setSceneRect(0, 0, 50, 0);
|
|
|
|
item->setGraphicsEffect(new DeviceEffect);
|
|
item->setPen(Qt::NoPen);
|
|
item->setBrush(Qt::red);
|
|
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
|
|
QTRY_VERIFY(item->numRepaints >= 1);
|
|
int numRepaints = item->numRepaints;
|
|
|
|
item->setTransform(QTransform::fromTranslate(10, 0), true);
|
|
|
|
QTRY_COMPARE(item->numRepaints, numRepaints);
|
|
}
|
|
|
|
void tst_QGraphicsEffect::inheritOpacity()
|
|
{
|
|
QGraphicsScene scene;
|
|
QGraphicsRectItem *rectItem = new QGraphicsRectItem(0, 0, 10, 10);
|
|
CustomItem *item = new CustomItem(0, 0, 10, 10, rectItem);
|
|
|
|
scene.addItem(rectItem);
|
|
|
|
item->setGraphicsEffect(new DeviceEffect);
|
|
item->setPen(Qt::NoPen);
|
|
item->setBrush(Qt::red);
|
|
|
|
rectItem->setOpacity(0.5);
|
|
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
|
|
QTRY_VERIFY(item->numRepaints >= 1);
|
|
|
|
int numRepaints = item->numRepaints;
|
|
|
|
rectItem->setOpacity(1);
|
|
|
|
// item should have been rerendered due to opacity changing
|
|
QTRY_VERIFY(item->numRepaints > numRepaints);
|
|
}
|
|
|
|
void tst_QGraphicsEffect::dropShadowClipping()
|
|
{
|
|
QImage img(128, 128, QImage::Format_ARGB32_Premultiplied);
|
|
img.fill(0xffffffff);
|
|
|
|
QGraphicsScene scene;
|
|
QGraphicsRectItem *item = new QGraphicsRectItem(-5, -500, 10, 1000);
|
|
item->setGraphicsEffect(new QGraphicsDropShadowEffect);
|
|
item->setPen(Qt::NoPen);
|
|
item->setBrush(Qt::red);
|
|
|
|
scene.addItem(item);
|
|
|
|
QPainter p(&img);
|
|
scene.render(&p, img.rect(), QRect(-64, -64, 128, 128));
|
|
p.end();
|
|
|
|
for (int y = 1; y < img.height(); ++y)
|
|
for (int x = 0; x < img.width(); ++x)
|
|
QCOMPARE(img.pixel(x, y), img.pixel(x, y-1));
|
|
}
|
|
|
|
class MyGraphicsItem : public QGraphicsWidget
|
|
{
|
|
public:
|
|
MyGraphicsItem(QGraphicsItem *parent = 0) :
|
|
QGraphicsWidget(parent), nbPaint(0)
|
|
{}
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
|
|
{
|
|
nbPaint++;
|
|
QGraphicsWidget::paint(painter, option, widget);
|
|
}
|
|
int nbPaint;
|
|
};
|
|
|
|
void tst_QGraphicsEffect::childrenVisibilityShouldInvalidateCache()
|
|
{
|
|
QGraphicsScene scene;
|
|
MyGraphicsItem parent;
|
|
parent.resize(200, 200);
|
|
QGraphicsWidget child(&parent);
|
|
child.resize(200, 200);
|
|
child.setVisible(false);
|
|
scene.addItem(&parent);
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
QTRY_VERIFY(parent.nbPaint >= 1);
|
|
//we set an effect on the parent
|
|
parent.setGraphicsEffect(new QGraphicsDropShadowEffect(&parent));
|
|
//flush the events
|
|
QApplication::processEvents();
|
|
//new effect applied->repaint
|
|
QVERIFY(parent.nbPaint >= 2);
|
|
child.setVisible(true);
|
|
//flush the events
|
|
QApplication::processEvents();
|
|
//a new child appears we need to redraw the effect.
|
|
QVERIFY(parent.nbPaint >= 3);
|
|
}
|
|
|
|
void tst_QGraphicsEffect::prepareGeometryChangeInvalidateCache()
|
|
{
|
|
MyGraphicsItem *item = new MyGraphicsItem;
|
|
item->resize(200, 200);
|
|
|
|
QGraphicsScene scene;
|
|
scene.addItem(item);
|
|
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
QTRY_VERIFY(item->nbPaint >= 1);
|
|
|
|
item->nbPaint = 0;
|
|
item->setGraphicsEffect(new QGraphicsDropShadowEffect);
|
|
QTRY_COMPARE(item->nbPaint, 1);
|
|
|
|
item->nbPaint = 0;
|
|
item->resize(300, 300);
|
|
QTRY_COMPARE(item->nbPaint, 1);
|
|
|
|
item->nbPaint = 0;
|
|
item->setPos(item->pos() + QPointF(10, 10));
|
|
QTest::qWait(50);
|
|
QCOMPARE(item->nbPaint, 0);
|
|
}
|
|
|
|
void tst_QGraphicsEffect::itemHasNoContents()
|
|
{
|
|
QGraphicsRectItem *parent = new QGraphicsRectItem;
|
|
parent->setFlag(QGraphicsItem::ItemHasNoContents);
|
|
|
|
MyGraphicsItem *child = new MyGraphicsItem;
|
|
child->setParentItem(parent);
|
|
child->resize(200, 200);
|
|
|
|
QGraphicsScene scene;
|
|
scene.addItem(parent);
|
|
|
|
QGraphicsView view(&scene);
|
|
view.show();
|
|
QVERIFY(QTest::qWaitForWindowExposed(&view));
|
|
QTRY_VERIFY(child->nbPaint >= 1);
|
|
|
|
CustomEffect *effect = new CustomEffect;
|
|
parent->setGraphicsEffect(effect);
|
|
QTRY_VERIFY(effect->numRepaints >= 1);
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
effect->reset();
|
|
effect->update();
|
|
QTRY_VERIFY(effect->numRepaints >= 1);
|
|
}
|
|
}
|
|
|
|
QTEST_MAIN(tst_QGraphicsEffect)
|
|
#include "tst_qgraphicseffect.moc"
|
|
|