diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicsitem.cpp')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsitem.cpp | 211 |
1 files changed, 141 insertions, 70 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index a5ee7e6..03014d8 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -558,6 +558,7 @@ #include "qgraphicsview.h" #include "qgraphicswidget.h" #include "qgraphicsproxywidget.h" +#include "qgraphicsscenebsptreeindex_p.h" #include <QtCore/qbitarray.h> #include <QtCore/qdebug.h> #include <QtCore/qpoint.h> @@ -588,17 +589,6 @@ QT_BEGIN_NAMESPACE -// QRectF::intersects() returns false always if either the source or target -// rectangle's width or height are 0. This works around that problem. -static inline void _q_adjustRect(QRectF *rect) -{ - Q_ASSERT(rect); - if (!rect->width()) - rect->adjust(-0.00001, 0, 0.00001, 0); - if (!rect->height()) - rect->adjust(0, -0.00001, 0, 0.00001); -} - static inline void _q_adjustRect(QRect *rect) { Q_ASSERT(rect); @@ -832,6 +822,42 @@ void QGraphicsItemPrivate::combineTransformFromParent(QTransform *x, const QTran } } +void QGraphicsItemPrivate::updateSceneTransformFromParent() +{ + if (parent) { + Q_ASSERT(!parent->d_ptr->dirtySceneTransform); + if (parent->d_ptr->sceneTransformTranslateOnly) { + sceneTransform = QTransform::fromTranslate(parent->d_ptr->sceneTransform.dx() + pos.x(), + parent->d_ptr->sceneTransform.dy() + pos.y()); + } else { + sceneTransform = parent->d_ptr->sceneTransform; + sceneTransform.translate(pos.x(), pos.y()); + } + if (transformData) { + sceneTransform = transformData->computedFullTransform(&sceneTransform); + sceneTransformTranslateOnly = (sceneTransform.type() <= QTransform::TxTranslate); + } else { + sceneTransformTranslateOnly = parent->d_ptr->sceneTransformTranslateOnly; + } + } else if (!transformData) { + sceneTransform = QTransform::fromTranslate(pos.x(), pos.y()); + sceneTransformTranslateOnly = 1; + } else if (transformData->onlyTransform) { + sceneTransform = transformData->transform; + if (!pos.isNull()) + sceneTransform *= QTransform::fromTranslate(pos.x(), pos.y()); + sceneTransformTranslateOnly = (sceneTransform.type() <= QTransform::TxTranslate); + } else if (pos.isNull()) { + sceneTransform = transformData->computedFullTransform(); + sceneTransformTranslateOnly = (sceneTransform.type() <= QTransform::TxTranslate); + } else { + sceneTransform = QTransform::fromTranslate(pos.x(), pos.y()); + sceneTransform = transformData->computedFullTransform(&sceneTransform); + sceneTransformTranslateOnly = (sceneTransform.type() <= QTransform::TxTranslate); + } + dirtySceneTransform = 0; +} + /*! \internal @@ -871,6 +897,11 @@ void QGraphicsItemPrivate::setParentItemHelper(QGraphicsItem *newParent) if (newParent == parent) return; + if (scene) { + // Deliver the change to the index + scene->d_func()->index->itemChange(q, QGraphicsItem::ItemParentChange, newParentVariant); + } + if (QGraphicsWidget *w = isWidget ? static_cast<QGraphicsWidget *>(q) : q->parentWidget()) { // Update the child focus chain; when reparenting a widget that has a // focus child, ensure that that focus child clears its focus child @@ -958,12 +989,6 @@ void QGraphicsItemPrivate::setParentItemHelper(QGraphicsItem *newParent) } } - if (scene) { - // Invalidate any sort caching; arrival of a new item means we need to - // resort. - scene->d_func()->invalidateSortCache(); - } - // Resolve depth. resolveDepth(parent ? parent->d_ptr->depth : -1); dirtySceneTransform = 1; @@ -1442,6 +1467,8 @@ void QGraphicsItem::setFlags(GraphicsItemFlags flags) flags = GraphicsItemFlags(itemChange(ItemFlagsChange, quint32(flags)).toUInt()); if (quint32(d_ptr->flags) == quint32(flags)) return; + if (d_ptr->scene) + 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); @@ -1800,6 +1827,8 @@ void QGraphicsItemPrivate::setVisibleHelper(bool newVisible, bool explicitly, bo if (q_ptr->isSelected()) q_ptr->setSelected(false); } else { + geometryChanged = 1; + paintedViewBoundingRectsNeedRepaint = 1; if (isWidget && scene) { QGraphicsWidget *widget = static_cast<QGraphicsWidget *>(q_ptr); if (widget->windowType() == Qt::Popup) @@ -3160,7 +3189,8 @@ void QGraphicsItem::setTransformOrigin(const QPointF &origin) */ QMatrix QGraphicsItem::sceneMatrix() const { - return sceneTransform().toAffine(); + d_ptr->ensureSceneTransform(); + return d_ptr->sceneTransform.toAffine(); } @@ -3183,16 +3213,7 @@ QMatrix QGraphicsItem::sceneMatrix() const */ QTransform QGraphicsItem::sceneTransform() const { - if (d_ptr->dirtySceneTransform) { - // This item and all its descendants have dirty scene transforms. - // We're about to validate this item's scene transform, so we have to - // invalidate all the children; otherwise there's no way for the descendants - // to detect that the ancestor has changed. - d_ptr->invalidateChildrenSceneTransform(); - } - - QGraphicsItem *that = const_cast<QGraphicsItem *>(this); - d_ptr->ensureSceneTransformRecursive(&that); + d_ptr->ensureSceneTransform(); return d_ptr->sceneTransform; } @@ -3222,8 +3243,10 @@ QTransform QGraphicsItem::sceneTransform() const QTransform QGraphicsItem::deviceTransform(const QTransform &viewportTransform) const { // Ensure we return the standard transform if we're not untransformable. - if (!d_ptr->itemIsUntransformable()) - return sceneTransform() * viewportTransform; + if (!d_ptr->itemIsUntransformable()) { + d_ptr->ensureSceneTransform(); + return d_ptr->sceneTransform * viewportTransform; + } // Find the topmost item that ignores view transformations. const QGraphicsItem *untransformedAncestor = this; @@ -3242,7 +3265,8 @@ QTransform QGraphicsItem::deviceTransform(const QTransform &viewportTransform) c } // First translate the base untransformable item. - QPointF mappedPoint = (untransformedAncestor->sceneTransform() * viewportTransform).map(QPointF(0, 0)); + untransformedAncestor->d_ptr->ensureSceneTransform(); + QPointF mappedPoint = (untransformedAncestor->d_ptr->sceneTransform * viewportTransform).map(QPointF(0, 0)); // COMBINE QTransform matrix = QTransform::fromTranslate(mappedPoint.x(), mappedPoint.y()); @@ -3335,8 +3359,11 @@ QTransform QGraphicsItem::itemTransform(const QGraphicsItem *other, bool *ok) co // Find the closest common ancestor. If the two items don't share an // ancestor, then the only way is to combine their scene transforms. const QGraphicsItem *commonAncestor = commonAncestorItem(other); - if (!commonAncestor) - return sceneTransform() * other->sceneTransform().inverted(ok); + if (!commonAncestor) { + d_ptr->ensureSceneTransform(); + other->d_ptr->ensureSceneTransform(); + return d_ptr->sceneTransform * other->d_ptr->sceneTransform.inverted(ok); + } // If the two items are cousins (in sibling branches), map both to the // common ancestor, and combine the two transforms. @@ -3627,18 +3654,20 @@ void QGraphicsItem::setZValue(qreal z) qreal newZ = qreal(newZVariant.toDouble()); if (newZ == d_ptr->z) return; + + if (d_ptr->scene) { + // Z Value has changed, we have to notify the index. + d_ptr->scene->d_func()->index->itemChange(this, ItemZValueChange, newZVariant); + } + d_ptr->z = newZ; if (d_ptr->parent) d_ptr->parent->d_ptr->needSortChildren = 1; else if (d_ptr->scene) d_ptr->scene->d_func()->needSortTopLevelItems = 1; - if (d_ptr->scene) { + if (d_ptr->scene) d_ptr->scene->d_func()->markDirty(this, QRectF(), /*invalidateChildren=*/true); - // Invalidate any sort caching; arrival of a new item means we need to - // resort. - d_ptr->scene->d_func()->invalidateSortCache(); - } itemChange(ItemZValueHasChanged, newZVariant); @@ -3729,7 +3758,13 @@ QRectF QGraphicsItem::sceneBoundingRect() const QRectF br = boundingRect(); br.translate(offset); - return !parentItem ? br : parentItem->sceneTransform().mapRect(br); + if (!parentItem) + return br; + if (parentItem->d_ptr->hasTranslateOnlySceneTransform()) { + br.translate(parentItem->d_ptr->sceneTransform.dx(), parentItem->d_ptr->sceneTransform.dy()); + return br; + } + return parentItem->d_ptr->sceneTransform.mapRect(br); } /*! @@ -4104,7 +4139,7 @@ bool QGraphicsItem::isObscuredBy(const QGraphicsItem *item) const { if (!item) return false; - return QGraphicsScenePrivate::closestItemFirst_withoutCache(item, this) + return QGraphicsSceneBspTreeIndexPrivate::closestItemFirst_withoutCache(item, this) && qt_QGraphicsItem_isObscured(this, item, boundingRect()); } @@ -4297,12 +4332,11 @@ bool QGraphicsItemPrivate::discardUpdateRequest(bool ignoreClipping, bool ignore { // No scene, or if the scene is updating everything, means we have nothing // to do. The only exception is if the scene tracks the growing scene rect. - return (!visible && !ignoreVisibleBit) + return !scene + || (!visible && !ignoreVisibleBit && !this->ignoreVisible) || (!ignoreDirtyBit && fullUpdatePending) - || !scene - || (scene->d_func()->updateAll && scene->d_func()->hasSceneRect) || (!ignoreClipping && (childrenClippedToShape() && isClippedAway())) - || (!ignoreOpacity && childrenCombineOpacity() && isFullyTransparent()); + || (!ignoreOpacity && !this->ignoreOpacity && childrenCombineOpacity() && isFullyTransparent()); } /*! @@ -4323,6 +4357,7 @@ void QGraphicsItemPrivate::resolveDepth(int parentDepth) void QGraphicsItemPrivate::addChild(QGraphicsItem *child) { needSortChildren = 1; + child->d_ptr->siblingIndex = children.size(); children.append(child); } @@ -4332,6 +4367,10 @@ void QGraphicsItemPrivate::addChild(QGraphicsItem *child) void QGraphicsItemPrivate::removeChild(QGraphicsItem *child) { children.removeOne(child); + // NB! Do not use children.removeAt(child->d_ptr->siblingIndex) because + // the child is not guaranteed to be at the index after the list is sorted. + // (see ensureSortedChildren()). + child->d_ptr->siblingIndex = -1; } /*! @@ -4492,9 +4531,22 @@ void QGraphicsItemPrivate::ensureSceneTransformRecursive(QGraphicsItem **topMost } // COMBINE my transform with the parent's scene transform. - sceneTransform = parent ? parent->d_ptr->sceneTransform : QTransform(); - combineTransformFromParent(&sceneTransform); - dirtySceneTransform = 0; + updateSceneTransformFromParent(); + Q_ASSERT(!dirtySceneTransform); +} + +void QGraphicsItemPrivate::ensureSceneTransform() +{ + if (dirtySceneTransform) { + // This item and all its descendants have dirty scene transforms. + // We're about to validate this item's scene transform, so we have to + // invalidate all the children; otherwise there's no way for the descendants + // to detect that the ancestor has changed. + invalidateChildrenSceneTransform(); + } + + QGraphicsItem *that = q_func(); + ensureSceneTransformRecursive(&that); } /*! @@ -4835,7 +4887,9 @@ QPointF QGraphicsItem::mapToParent(const QPointF &point) const */ QPointF QGraphicsItem::mapToScene(const QPointF &point) const { - return sceneTransform().map(point); + if (d_ptr->hasTranslateOnlySceneTransform()) + return QPointF(point.x() + d_ptr->sceneTransform.dx(), point.y() + d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.map(point); } /*! @@ -4902,7 +4956,9 @@ QPolygonF QGraphicsItem::mapToParent(const QRectF &rect) const */ QPolygonF QGraphicsItem::mapToScene(const QRectF &rect) const { - return sceneTransform().map(rect); + if (d_ptr->hasTranslateOnlySceneTransform()) + return rect.translated(d_ptr->sceneTransform.dx(), d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.map(rect); } /*! @@ -4975,7 +5031,9 @@ QRectF QGraphicsItem::mapRectToParent(const QRectF &rect) const */ QRectF QGraphicsItem::mapRectToScene(const QRectF &rect) const { - return sceneTransform().mapRect(rect); + if (d_ptr->hasTranslateOnlySceneTransform()) + return rect.translated(d_ptr->sceneTransform.dx(), d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.mapRect(rect); } /*! @@ -5049,7 +5107,9 @@ QRectF QGraphicsItem::mapRectFromParent(const QRectF &rect) const */ QRectF QGraphicsItem::mapRectFromScene(const QRectF &rect) const { - return sceneTransform().inverted().mapRect(rect); + if (d_ptr->hasTranslateOnlySceneTransform()) + return rect.translated(-d_ptr->sceneTransform.dx(), -d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.inverted().mapRect(rect); } /*! @@ -5101,7 +5161,9 @@ QPolygonF QGraphicsItem::mapToParent(const QPolygonF &polygon) const */ QPolygonF QGraphicsItem::mapToScene(const QPolygonF &polygon) const { - return sceneTransform().map(polygon); + if (d_ptr->hasTranslateOnlySceneTransform()) + return polygon.translated(d_ptr->sceneTransform.dx(), d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.map(polygon); } /*! @@ -5146,7 +5208,9 @@ QPainterPath QGraphicsItem::mapToParent(const QPainterPath &path) const */ QPainterPath QGraphicsItem::mapToScene(const QPainterPath &path) const { - return sceneTransform().map(path); + if (d_ptr->hasTranslateOnlySceneTransform()) + return path.translated(d_ptr->sceneTransform.dx(), d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.map(path); } /*! @@ -5207,7 +5271,9 @@ QPointF QGraphicsItem::mapFromParent(const QPointF &point) const */ QPointF QGraphicsItem::mapFromScene(const QPointF &point) const { - return sceneTransform().inverted().map(point); + if (d_ptr->hasTranslateOnlySceneTransform()) + return QPointF(point.x() - d_ptr->sceneTransform.dx(), point.y() - d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.inverted().map(point); } /*! @@ -5275,7 +5341,9 @@ QPolygonF QGraphicsItem::mapFromParent(const QRectF &rect) const */ QPolygonF QGraphicsItem::mapFromScene(const QRectF &rect) const { - return sceneTransform().inverted().map(rect); + if (d_ptr->hasTranslateOnlySceneTransform()) + return rect.translated(-d_ptr->sceneTransform.dx(), -d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.inverted().map(rect); } /*! @@ -5325,7 +5393,9 @@ QPolygonF QGraphicsItem::mapFromParent(const QPolygonF &polygon) const */ QPolygonF QGraphicsItem::mapFromScene(const QPolygonF &polygon) const { - return sceneTransform().inverted().map(polygon); + if (d_ptr->hasTranslateOnlySceneTransform()) + return polygon.translated(-d_ptr->sceneTransform.dx(), -d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.inverted().map(polygon); } /*! @@ -5368,7 +5438,9 @@ QPainterPath QGraphicsItem::mapFromParent(const QPainterPath &path) const */ QPainterPath QGraphicsItem::mapFromScene(const QPainterPath &path) const { - return sceneTransform().inverted().map(path); + if (d_ptr->hasTranslateOnlySceneTransform()) + return path.translated(-d_ptr->sceneTransform.dx(), -d_ptr->sceneTransform.dy()); + return d_ptr->sceneTransform.inverted().map(path); } /*! @@ -6333,7 +6405,7 @@ void QGraphicsItem::addToIndex() return; } if (d_ptr->scene) - d_ptr->scene->d_func()->addToIndex(this); + d_ptr->scene->d_func()->index->addItem(this); } /*! @@ -6350,7 +6422,7 @@ void QGraphicsItem::removeFromIndex() return; } if (d_ptr->scene) - d_ptr->scene->d_func()->removeFromIndex(this); + d_ptr->scene->d_func()->index->removeItem(this); } /*! @@ -6369,10 +6441,12 @@ void QGraphicsItem::removeFromIndex() void QGraphicsItem::prepareGeometryChange() { if (d_ptr->scene) { + d_ptr->scene->d_func()->dirtyGrowingItemsBoundingRect = true; d_ptr->geometryChanged = 1; d_ptr->paintedViewBoundingRectsNeedRepaint = 1; QGraphicsScenePrivate *scenePrivate = d_ptr->scene->d_func(); + scenePrivate->index->prepareBoundingRectChange(this); scenePrivate->markDirty(this, QRectF(), /*invalidateChildren=*/true, /*maybeDirtyClipPath=*/!d_ptr->inSetPosHelper); @@ -6383,10 +6457,13 @@ void QGraphicsItem::prepareGeometryChange() // _q_processDirtyItems is called before _q_emitUpdated. if ((scenePrivate->connectedSignals & scenePrivate->changedSignalMask) || scenePrivate->views.isEmpty()) { - d_ptr->scene->update(sceneTransform().mapRect(boundingRect())); + if (d_ptr->hasTranslateOnlySceneTransform()) { + d_ptr->scene->update(boundingRect().translated(d_ptr->sceneTransform.dx(), + d_ptr->sceneTransform.dy())); + } else { + d_ptr->scene->update(d_ptr->sceneTransform.mapRect(boundingRect())); + } } - - scenePrivate->removeFromIndex(this); } QGraphicsItem *parent = this; @@ -9706,17 +9783,11 @@ QDebug operator<<(QDebug debug, QGraphicsItem *item) return debug; } - QStringList flags; - if (item->isVisible()) flags << QLatin1String("isVisible"); - if (item->isEnabled()) flags << QLatin1String("isEnabled"); - if (item->isSelected()) flags << QLatin1String("isSelected"); - if (item->hasFocus()) flags << QLatin1String("HasFocus"); - debug << "QGraphicsItem(this =" << ((void*)item) << ", parent =" << ((void*)item->parentItem()) << ", pos =" << item->pos() - << ", z =" << item->zValue() << ", flags = {" - << flags.join(QLatin1String("|")) << " })"; + << ", z =" << item->zValue() << ", flags = " + << item->flags() << ")"; return debug; } |