From c39fac87d62ef15867dc5571d03530d7e7240aa7 Mon Sep 17 00:00:00 2001 From: Gunnar Sletta Date: Mon, 26 Oct 2009 10:39:38 +0100 Subject: Options on how to get a pixmap from an effect source Usable for future optimizations. Reviewed-by: Samuel --- src/gui/effects/qgraphicseffect.cpp | 22 +++-- src/gui/effects/qgraphicseffect.h | 10 ++- src/gui/effects/qgraphicseffect_p.h | 3 +- src/gui/graphicsview/qgraphicsitem.cpp | 31 +++++-- src/gui/graphicsview/qgraphicsitem_p.h | 9 +- src/gui/kernel/qwidget.cpp | 18 +++- src/gui/kernel/qwidget_p.h | 3 +- .../tst_qgraphicseffectsource.cpp | 99 ++++++++++++++++++++++ 8 files changed, 177 insertions(+), 18 deletions(-) diff --git a/src/gui/effects/qgraphicseffect.cpp b/src/gui/effects/qgraphicseffect.cpp index f20480b..647fd1b 100644 --- a/src/gui/effects/qgraphicseffect.cpp +++ b/src/gui/effects/qgraphicseffect.cpp @@ -97,6 +97,7 @@ */ #include "qgraphicseffect_p.h" +#include #include #include @@ -248,16 +249,22 @@ bool QGraphicsEffectSource::isPixmap() const \sa QGraphicsEffect::draw(), boundingRect(), deviceRect() */ -QPixmap QGraphicsEffectSource::pixmap(Qt::CoordinateSystem system, QPoint *offset) const +QPixmap QGraphicsEffectSource::pixmap(Qt::CoordinateSystem system, QPoint *offset, PixmapPadMode mode) const { Q_D(const QGraphicsEffectSource); + // Shortcut, no cache for childless pixmap items... + const QGraphicsItem *item = graphicsItem(); + if (system == Qt::LogicalCoordinates && mode == NoExpandPadMode && item && isPixmap()) { + return ((QGraphicsPixmapItem *) item)->pixmap(); + } + QPixmap pm; if (d->m_cachedSystem == system) QPixmapCache::find(d->m_cacheKey, &pm); if (pm.isNull()) { - pm = d->pixmap(system, &d->m_cachedOffset); + pm = d->pixmap(system, &d->m_cachedOffset, mode); d->m_cachedSystem = system; d->invalidateCache(); @@ -565,7 +572,8 @@ void QGraphicsColorizeEffect::draw(QPainter *painter, QGraphicsEffectSource *sou QPoint offset; if (source->isPixmap()) { // No point in drawing in device coordinates (pixmap will be scaled anyways). - const QPixmap pixmap = source->pixmap(Qt::LogicalCoordinates, &offset); + const QPixmap pixmap = source->pixmap(Qt::LogicalCoordinates, &offset, + QGraphicsEffectSource::NoExpandPadMode); d->filter->draw(painter, offset, pixmap); return; } @@ -776,6 +784,8 @@ void QGraphicsDropShadowEffect::setOffset(const QPointF &offset) By default, the horizontal shadow offset is 8 pixels. + + \sa yOffset(), offset() */ @@ -1029,7 +1039,8 @@ void QGraphicsOpacityEffect::draw(QPainter *painter, QGraphicsEffectSource *sour if (source->isPixmap()) { // No point in drawing in device coordinates (pixmap will be scaled anyways). if (!d->hasOpacityMask) { - const QPixmap pixmap = source->pixmap(Qt::LogicalCoordinates, &offset); + const QPixmap pixmap = source->pixmap(Qt::LogicalCoordinates, &offset, + QGraphicsEffectSource::NoExpandPadMode); painter->drawPixmap(offset, pixmap); } else { QRect srcBrect = source->boundingRect().toAlignedRect(); @@ -1050,7 +1061,8 @@ void QGraphicsOpacityEffect::draw(QPainter *painter, QGraphicsEffectSource *sour } else { // Draw pixmap in device coordinates to avoid pixmap scaling; if (!d->hasOpacityMask) { - const QPixmap pixmap = source->pixmap(Qt::DeviceCoordinates, &offset); + const QPixmap pixmap = source->pixmap(Qt::DeviceCoordinates, &offset, + QGraphicsEffectSource::NoExpandPadMode); painter->setWorldTransform(QTransform()); painter->drawPixmap(offset, pixmap); } else { diff --git a/src/gui/effects/qgraphicseffect.h b/src/gui/effects/qgraphicseffect.h index 019e808..abf03b3 100644 --- a/src/gui/effects/qgraphicseffect.h +++ b/src/gui/effects/qgraphicseffect.h @@ -64,6 +64,12 @@ class Q_GUI_EXPORT QGraphicsEffectSource : public QObject { Q_OBJECT public: + enum PixmapPadMode { + NoExpandPadMode, + ExpandToTransparentBorderPadMode, + ExpandToEffectRectPadMode + }; + ~QGraphicsEffectSource(); const QGraphicsItem *graphicsItem() const; const QWidget *widget() const; @@ -75,7 +81,9 @@ public: QRectF boundingRect(Qt::CoordinateSystem coordinateSystem = Qt::LogicalCoordinates) const; QRect deviceRect() const; - QPixmap pixmap(Qt::CoordinateSystem system = Qt::LogicalCoordinates, QPoint *offset = 0) const; + QPixmap pixmap(Qt::CoordinateSystem system = Qt::LogicalCoordinates, + QPoint *offset = 0, + PixmapPadMode mode = ExpandToEffectRectPadMode) const; protected: QGraphicsEffectSource(QGraphicsEffectSourcePrivate &dd, QObject *parent = 0); diff --git a/src/gui/effects/qgraphicseffect_p.h b/src/gui/effects/qgraphicseffect_p.h index 24d8696..dff84a1 100644 --- a/src/gui/effects/qgraphicseffect_p.h +++ b/src/gui/effects/qgraphicseffect_p.h @@ -77,7 +77,8 @@ public: virtual void draw(QPainter *p) = 0; virtual void update() = 0; virtual bool isPixmap() const = 0; - virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0) const = 0; + virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0, + QGraphicsEffectSource::PixmapPadMode mode = QGraphicsEffectSource::ExpandToTransparentBorderPadMode) const = 0; virtual void effectBoundingRectChanged() = 0; void invalidateCache() const { QPixmapCache::remove(m_cacheKey); } diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index f892bb4..97357a7 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -1657,7 +1657,7 @@ void QGraphicsItem::setFlags(GraphicsItemFlags flags) d_ptr->scene->d_func()->index->itemChange(this, ItemFlagsChange, quint32(flags)); // Flags that alter the geometry of the item (or its children). - const quint32 geomChangeFlagsMask = (ItemClipsChildrenToShape | ItemClipsToShape | ItemIgnoresTransformations); + const quint32 geomChangeFlagsMask = (ItemClipsChildrenToShape | ItemClipsToShape | ItemIgnoresTransformations | ItemIsSelectable); bool fullUpdate = (quint32(flags) & geomChangeFlagsMask) != (d_ptr->flags & geomChangeFlagsMask); if (fullUpdate) d_ptr->paintedViewBoundingRectsNeedRepaint = 1; @@ -9138,10 +9138,14 @@ void QGraphicsPixmapItem::setOffset(const QPointF &offset) QRectF QGraphicsPixmapItem::boundingRect() const { Q_D(const QGraphicsPixmapItem); - qreal pw = 1.0; if (d->pixmap.isNull()) return QRectF(); - return QRectF(d->offset, d->pixmap.size()).adjusted(-pw/2, -pw/2, pw/2, pw/2); + if (d->flags & ItemIsSelectable) { + qreal pw = 1.0; + return QRectF(d->offset, d->pixmap.size()).adjusted(-pw/2, -pw/2, pw/2, pw/2); + } else { + return QRectF(d->offset, d->pixmap.size()); + } } /*! @@ -10660,7 +10664,8 @@ void QGraphicsItemEffectSourcePrivate::draw(QPainter *painter) } } -QPixmap QGraphicsItemEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint *offset) const +QPixmap QGraphicsItemEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint *offset, + QGraphicsEffectSource::PixmapPadMode mode) const { const bool deviceCoordinates = (system == Qt::DeviceCoordinates); if (!info && deviceCoordinates) { @@ -10674,7 +10679,16 @@ QPixmap QGraphicsItemEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QP QGraphicsScenePrivate *scened = item->d_ptr->scene->d_func(); const QRectF sourceRect = boundingRect(system); - QRect effectRect = item->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect(); + QRect effectRect; + + if (mode == QGraphicsEffectSource::ExpandToEffectRectPadMode) { + effectRect = item->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect(); + } else if (mode == QGraphicsEffectSource::ExpandToTransparentBorderPadMode) { + effectRect = sourceRect.adjusted(-1, -1, 1, 1).toAlignedRect(); + } else { + effectRect = sourceRect.toAlignedRect(); + } + if (offset) *offset = effectRect.topLeft(); @@ -10702,10 +10716,15 @@ QPixmap QGraphicsItemEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QP effectRect.setBottom(deviceHeight -1); } - if (effectRect.isEmpty()) return QPixmap(); + if (system == Qt::LogicalCoordinates + && effectRect.size() == sourceRect.size() + && isPixmap()) { + return static_cast(item)->pixmap(); + } + QPixmap pixmap(effectRect.size()); pixmap.fill(Qt::transparent); QPainter pixmapPainter(&pixmap); diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h index 7c3c4f0..183e95b 100644 --- a/src/gui/graphicsview/qgraphicsitem_p.h +++ b/src/gui/graphicsview/qgraphicsitem_p.h @@ -61,6 +61,7 @@ #include #include +#include #include @@ -603,7 +604,9 @@ public: inline bool isPixmap() const { - return (item->type() == QGraphicsPixmapItem::Type); + return item->type() == QGraphicsPixmapItem::Type + && !(item->flags() & QGraphicsItem::ItemIsSelectable) + && item->d_ptr->children.size() == 0; //|| (item->d_ptr->isObject && qobject_cast(q_func())); } @@ -621,7 +624,9 @@ public: QRectF boundingRect(Qt::CoordinateSystem system) const; void draw(QPainter *); - QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset) const; + QPixmap pixmap(Qt::CoordinateSystem system, + QPoint *offset, + QGraphicsEffectSource::PixmapPadMode mode) const; QGraphicsItem *item; QGraphicsItemPaintInfo *info; diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp index 5fa9a92..27e73e0 100644 --- a/src/gui/kernel/qwidget.cpp +++ b/src/gui/kernel/qwidget.cpp @@ -5437,7 +5437,8 @@ void QWidgetEffectSourcePrivate::draw(QPainter *painter) context->sharedPainter, context->backingStore); } -QPixmap QWidgetEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint *offset) const +QPixmap QWidgetEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint *offset, + QGraphicsEffectSource::PixmapPadMode mode) const { const bool deviceCoordinates = (system == Qt::DeviceCoordinates); if (!context && deviceCoordinates) { @@ -5455,7 +5456,20 @@ QPixmap QWidgetEffectSourcePrivate::pixmap(Qt::CoordinateSystem system, QPoint * pixmapOffset = painterTransform.map(pixmapOffset); } - QRect effectRect = m_widget->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect(); + + QRect effectRect; + + if (mode == QGraphicsEffectSource::ExpandToEffectRectPadMode) { + effectRect = m_widget->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect(); + + } else if (mode == QGraphicsEffectSource::ExpandToTransparentBorderPadMode) { + effectRect = sourceRect.adjusted(-1, -1, 1, 1).toAlignedRect(); + + } else { + effectRect = sourceRect.toAlignedRect(); + + } + if (offset) *offset = effectRect.topLeft(); diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h index 159a3f2..616a972 100644 --- a/src/gui/kernel/qwidget_p.h +++ b/src/gui/kernel/qwidget_p.h @@ -819,7 +819,8 @@ public: QRectF boundingRect(Qt::CoordinateSystem system) const; void draw(QPainter *p); - QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset) const; + QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset, + QGraphicsEffectSource::PixmapPadMode mode) const; QWidget *m_widget; QWidgetPaintContext *context; diff --git a/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp b/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp index 855950b..0635989 100644 --- a/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp +++ b/tests/auto/qgraphicseffectsource/tst_qgraphicseffectsource.cpp @@ -166,6 +166,9 @@ private slots: void deviceRect(); void pixmap(); + void pixmapPadding_data(); + void pixmapPadding(); + private: QGraphicsView *view; QGraphicsScene *scene; @@ -318,6 +321,102 @@ void tst_QGraphicsEffectSource::pixmap() QCOMPARE(pixmap1, pixmap2); } +class PaddingEffect : public QGraphicsEffect +{ +public: + PaddingEffect(QObject *parent) : QGraphicsEffect(parent) + { + } + + QRectF boundingRectFor(const QRectF &src) const { + return src.adjusted(-10, -10, 10, 10); + } + + void draw(QPainter *p, QGraphicsEffectSource *source) { + pix = source->pixmap(coordinateMode, &offset, padMode); + } + + QPixmap pix; + QPoint offset; + QGraphicsEffectSource::PixmapPadMode padMode; + Qt::CoordinateSystem coordinateMode; +}; + +void tst_QGraphicsEffectSource::pixmapPadding_data() +{ + QTest::addColumn("coordinateMode"); + QTest::addColumn("padMode"); + QTest::addColumn("size"); + QTest::addColumn("offset"); + QTest::addColumn("ulPixel"); + + QTest::newRow("log,nopad") << int(Qt::LogicalCoordinates) + << int(QGraphicsEffectSource::NoPadMode) + << QSize(10, 10) << QPoint(0, 0) + << 0xffff0000u; + + QTest::newRow("log,transparent") << int(Qt::LogicalCoordinates) + << int(QGraphicsEffectSource::ExpandToTransparentBorderPadMode) + << QSize(12, 12) << QPoint(-1, -1) + << 0x00000000u; + + QTest::newRow("log,effectrect") << int(Qt::LogicalCoordinates) + << int(QGraphicsEffectSource::ExpandToEffectRectPadMode) + << QSize(30, 30) << QPoint(-10, -10) + << 0x00000000u; + + QTest::newRow("dev,nopad") << int(Qt::DeviceCoordinates) + << int(QGraphicsEffectSource::NoPadMode) + << QSize(20, 20) << QPoint(40, 40) + << 0xffff0000u; + + QTest::newRow("dev,transparent") << int(Qt::DeviceCoordinates) + << int(QGraphicsEffectSource::ExpandToTransparentBorderPadMode) + << QSize(22, 22) << QPoint(39, 39) + << 0x00000000u; + + QTest::newRow("dev,effectrect") << int(Qt::DeviceCoordinates) + << int(QGraphicsEffectSource::ExpandToEffectRectPadMode) + << QSize(40, 40) << QPoint(30, 30) + << 0x00000000u; + +} + +void tst_QGraphicsEffectSource::pixmapPadding() +{ + QPixmap dummyTarget(100, 100); + QPainter dummyPainter(&dummyTarget); + dummyPainter.translate(40, 40); + dummyPainter.scale(2, 2); + + QPixmap pm(10, 10); + pm.fill(Qt::red); + + QGraphicsScene *scene = new QGraphicsScene(); + PaddingEffect *effect = new PaddingEffect(scene); + QGraphicsPixmapItem *pmItem = new QGraphicsPixmapItem(pm); + scene->addItem(pmItem); + pmItem->setGraphicsEffect(effect); + + QFETCH(int, coordinateMode); + QFETCH(int, padMode); + QFETCH(QPoint, offset); + QFETCH(QSize, size); + QFETCH(uint, ulPixel); + + effect->padMode = (QGraphicsEffectSource::PixmapPadMode) padMode; + effect->coordinateMode = (Qt::CoordinateSystem) coordinateMode; + + scene->render(&dummyPainter, scene->itemsBoundingRect(), scene->itemsBoundingRect()); + + QCOMPARE(effect->pix.size(), size); + QCOMPARE(effect->offset, offset); + QCOMPARE(effect->pix.toImage().pixel(0, 0), ulPixel); + + // ### Fix corruption in scene destruction, then enable... + // delete scene; +} + QTEST_MAIN(tst_QGraphicsEffectSource) #include "tst_qgraphicseffectsource.moc" -- cgit v0.12