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Diffstat (limited to 'src/gui/graphicsview/qgraphicsitem_p.h')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsitem_p.h | 891 |
1 files changed, 0 insertions, 891 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h deleted file mode 100644 index 90ff43f93c..0000000000 --- a/src/gui/graphicsview/qgraphicsitem_p.h +++ /dev/null @@ -1,891 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module 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 Technology Preview License Agreement accompanying -** this package. -** -** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QGRAPHICSITEM_P_H -#define QGRAPHICSITEM_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of other Qt classes. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include "qgraphicsitem.h" -#include "qset.h" -#include "qpixmapcache.h" -#include <private/qgraphicsview_p.h> -#include "qgraphicstransform.h" -#include <private/qgraphicstransform_p.h> - -#include <private/qgraphicseffect_p.h> -#include <qgraphicseffect.h> - -#include <QtCore/qpoint.h> - -#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW - -QT_BEGIN_NAMESPACE - -class QGraphicsItemPrivate; - -#ifndef QDECLARATIVELISTPROPERTY -#define QDECLARATIVELISTPROPERTY -template<typename T> -class QDeclarativeListProperty { -public: - typedef void (*AppendFunction)(QDeclarativeListProperty<T> *, T*); - typedef int (*CountFunction)(QDeclarativeListProperty<T> *); - typedef T *(*AtFunction)(QDeclarativeListProperty<T> *, int); - typedef void (*ClearFunction)(QDeclarativeListProperty<T> *); - - QDeclarativeListProperty() - : object(0), data(0), append(0), count(0), at(0), clear(0), dummy1(0), dummy2(0) {} - QDeclarativeListProperty(QObject *o, QList<T *> &list) - : object(o), data(&list), append(qlist_append), count(qlist_count), at(qlist_at), - clear(qlist_clear), dummy1(0), dummy2(0) {} - QDeclarativeListProperty(QObject *o, void *d, AppendFunction a, CountFunction c = 0, AtFunction t = 0, - ClearFunction r = 0) - : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(0), dummy2(0) {} - - bool operator==(const QDeclarativeListProperty &o) const { - return object == o.object && - data == o.data && - append == o.append && - count == o.count && - at == o.at && - clear == o.clear; - } - - QObject *object; - void *data; - - AppendFunction append; - - CountFunction count; - AtFunction at; - - ClearFunction clear; - - void *dummy1; - void *dummy2; - -private: - static void qlist_append(QDeclarativeListProperty *p, T *v) { - ((QList<T *> *)p->data)->append(v); - } - static int qlist_count(QDeclarativeListProperty *p) { - return ((QList<T *> *)p->data)->count(); - } - static T *qlist_at(QDeclarativeListProperty *p, int idx) { - return ((QList<T *> *)p->data)->at(idx); - } - static void qlist_clear(QDeclarativeListProperty *p) { - return ((QList<T *> *)p->data)->clear(); - } -}; -#endif - -class QGraphicsItemCache -{ -public: - QGraphicsItemCache() : allExposed(false) { } - - // ItemCoordinateCache only - QRect boundingRect; - QSize fixedSize; - QPixmapCache::Key key; - - // DeviceCoordinateCache only - struct DeviceData { - DeviceData() {} - QTransform lastTransform; - QPoint cacheIndent; - QPixmapCache::Key key; - }; - QMap<QPaintDevice *, DeviceData> deviceData; - - // List of logical exposed rects - QVector<QRectF> exposed; - bool allExposed; - - // Empty cache - void purge(); -}; - -class Q_GUI_EXPORT QGraphicsItemPrivate -{ - Q_DECLARE_PUBLIC(QGraphicsItem) -public: - enum Extra { - ExtraToolTip, - ExtraCursor, - ExtraCacheData, - ExtraMaxDeviceCoordCacheSize, - ExtraBoundingRegionGranularity - }; - - enum AncestorFlag { - NoFlag = 0, - AncestorHandlesChildEvents = 0x1, - AncestorClipsChildren = 0x2, - AncestorIgnoresTransformations = 0x4, - AncestorFiltersChildEvents = 0x8 - }; - - inline QGraphicsItemPrivate() - : z(0), - opacity(1.), - scene(0), - parent(0), - transformData(0), - graphicsEffect(0), - index(-1), - siblingIndex(-1), - itemDepth(-1), - focusProxy(0), - subFocusItem(0), - focusScopeItem(0), - imHints(Qt::ImhNone), - panelModality(QGraphicsItem::NonModal), - acceptedMouseButtons(0x1f), - visible(1), - explicitlyHidden(0), - enabled(1), - explicitlyDisabled(0), - selected(0), - acceptsHover(0), - acceptDrops(0), - isMemberOfGroup(0), - handlesChildEvents(0), - itemDiscovered(0), - hasCursor(0), - ancestorFlags(0), - cacheMode(0), - hasBoundingRegionGranularity(0), - isWidget(0), - dirty(0), - dirtyChildren(0), - localCollisionHack(0), - inSetPosHelper(0), - needSortChildren(0), - allChildrenDirty(0), - fullUpdatePending(0), - dirtyChildrenBoundingRect(1), - flags(0), - paintedViewBoundingRectsNeedRepaint(0), - dirtySceneTransform(1), - geometryChanged(1), - inDestructor(0), - isObject(0), - ignoreVisible(0), - ignoreOpacity(0), - acceptTouchEvents(0), - acceptedTouchBeginEvent(0), - filtersDescendantEvents(0), - sceneTransformTranslateOnly(0), - notifyBoundingRectChanged(0), - notifyInvalidated(0), - mouseSetsFocus(1), - explicitActivate(0), - wantsActive(0), - holesInSiblingIndex(0), - sequentialOrdering(1), - updateDueToGraphicsEffect(0), - scenePosDescendants(0), - pendingPolish(0), - mayHaveChildWithGraphicsEffect(0), - isDeclarativeItem(0), - sendParentChangeNotification(0), - globalStackingOrder(-1), - q_ptr(0) - { - } - - inline virtual ~QGraphicsItemPrivate() - { } - - static const QGraphicsItemPrivate *get(const QGraphicsItem *item) - { - return item->d_ptr.data(); - } - static QGraphicsItemPrivate *get(QGraphicsItem *item) - { - return item->d_ptr.data(); - } - - void updateChildWithGraphicsEffectFlagRecursively(); - void updateAncestorFlag(QGraphicsItem::GraphicsItemFlag childFlag, - AncestorFlag flag = NoFlag, bool enabled = false, bool root = true); - void updateAncestorFlags(); - void setIsMemberOfGroup(bool enabled); - void remapItemPos(QEvent *event, QGraphicsItem *item); - QPointF genericMapFromScene(const QPointF &pos, const QWidget *viewport) const; - inline bool itemIsUntransformable() const - { - return (flags & QGraphicsItem::ItemIgnoresTransformations) - || (ancestorFlags & AncestorIgnoresTransformations); - } - - void combineTransformToParent(QTransform *x, const QTransform *viewTransform = 0) const; - void combineTransformFromParent(QTransform *x, const QTransform *viewTransform = 0) const; - virtual void updateSceneTransformFromParent(); - - // ### Qt 5: Remove. Workaround for reimplementation added after Qt 4.4. - virtual QVariant inputMethodQueryHelper(Qt::InputMethodQuery query) const; - static bool movableAncestorIsSelected(const QGraphicsItem *item); - - virtual void setPosHelper(const QPointF &pos); - void setTransformHelper(const QTransform &transform); - void prependGraphicsTransform(QGraphicsTransform *t); - void appendGraphicsTransform(QGraphicsTransform *t); - void setVisibleHelper(bool newVisible, bool explicitly, bool update = true); - void setEnabledHelper(bool newEnabled, bool explicitly, bool update = true); - bool discardUpdateRequest(bool ignoreVisibleBit = false, - bool ignoreDirtyBit = false, bool ignoreOpacity = false) const; - virtual void transformChanged() {} - int depth() const; -#ifndef QT_NO_GRAPHICSEFFECT - enum InvalidateReason { - OpacityChanged - }; - void invalidateParentGraphicsEffectsRecursively(); - void invalidateChildGraphicsEffectsRecursively(InvalidateReason reason); -#endif //QT_NO_GRAPHICSEFFECT - void invalidateDepthRecursively(); - void resolveDepth(); - void addChild(QGraphicsItem *child); - void removeChild(QGraphicsItem *child); - QDeclarativeListProperty<QGraphicsObject> childrenList(); - void setParentItemHelper(QGraphicsItem *parent, const QVariant *newParentVariant, - const QVariant *thisPointerVariant); - void childrenBoundingRectHelper(QTransform *x, QRectF *rect, QGraphicsItem *topMostEffectItem); - void initStyleOption(QStyleOptionGraphicsItem *option, const QTransform &worldTransform, - const QRegion &exposedRegion, bool allItems = false) const; - QRectF effectiveBoundingRect(QGraphicsItem *topMostEffectItem = 0) const; - QRectF sceneEffectiveBoundingRect() const; - - QRectF effectiveBoundingRect(const QRectF &rect) const; - - virtual void resolveFont(uint inheritedMask) - { - for (int i = 0; i < children.size(); ++i) - children.at(i)->d_ptr->resolveFont(inheritedMask); - } - - virtual void resolvePalette(uint inheritedMask) - { - for (int i = 0; i < children.size(); ++i) - children.at(i)->d_ptr->resolveFont(inheritedMask); - } - - virtual bool isProxyWidget() const; - - inline QVariant extra(Extra type) const - { - for (int i = 0; i < extras.size(); ++i) { - const ExtraStruct &extra = extras.at(i); - if (extra.type == type) - return extra.value; - } - return QVariant(); - } - - inline void setExtra(Extra type, const QVariant &value) - { - int index = -1; - for (int i = 0; i < extras.size(); ++i) { - if (extras.at(i).type == type) { - index = i; - break; - } - } - - if (index == -1) { - extras << ExtraStruct(type, value); - } else { - extras[index].value = value; - } - } - - inline void unsetExtra(Extra type) - { - for (int i = 0; i < extras.size(); ++i) { - if (extras.at(i).type == type) { - extras.removeAt(i); - return; - } - } - } - - struct ExtraStruct { - ExtraStruct(Extra type, QVariant value) - : type(type), value(value) - { } - - Extra type; - QVariant value; - - bool operator<(Extra extra) const - { return type < extra; } - }; - - QList<ExtraStruct> extras; - - QGraphicsItemCache *maybeExtraItemCache() const; - QGraphicsItemCache *extraItemCache() const; - void removeExtraItemCache(); - - void updatePaintedViewBoundingRects(bool updateChildren); - void ensureSceneTransformRecursive(QGraphicsItem **topMostDirtyItem); - inline void ensureSceneTransform() - { - QGraphicsItem *that = q_func(); - ensureSceneTransformRecursive(&that); - } - - inline bool hasTranslateOnlySceneTransform() - { - ensureSceneTransform(); - return sceneTransformTranslateOnly; - } - - inline void invalidateChildrenSceneTransform() - { - for (int i = 0; i < children.size(); ++i) - children.at(i)->d_ptr->dirtySceneTransform = 1; - } - - inline qreal calcEffectiveOpacity() const - { - qreal o = opacity; - QGraphicsItem *p = parent; - int myFlags = flags; - while (p) { - int parentFlags = p->d_ptr->flags; - - // If I have a parent, and I don't ignore my parent's opacity, and my - // parent propagates to me, then combine my local opacity with my parent's - // effective opacity into my effective opacity. - if ((myFlags & QGraphicsItem::ItemIgnoresParentOpacity) - || (parentFlags & QGraphicsItem::ItemDoesntPropagateOpacityToChildren)) { - break; - } - - o *= p->d_ptr->opacity; - p = p->d_ptr->parent; - myFlags = parentFlags; - } - return o; - } - - inline bool isOpacityNull() const - { return (opacity < qreal(0.001)); } - - static inline bool isOpacityNull(qreal opacity) - { return (opacity < qreal(0.001)); } - - inline bool isFullyTransparent() const - { - if (isOpacityNull()) - return true; - if (!parent) - return false; - - return isOpacityNull(calcEffectiveOpacity()); - } - - inline qreal effectiveOpacity() const { - if (!parent || !opacity) - return opacity; - - return calcEffectiveOpacity(); - } - - inline qreal combineOpacityFromParent(qreal parentOpacity) const - { - if (parent && !(flags & QGraphicsItem::ItemIgnoresParentOpacity) - && !(parent->d_ptr->flags & QGraphicsItem::ItemDoesntPropagateOpacityToChildren)) { - return parentOpacity * opacity; - } - return opacity; - } - - inline bool childrenCombineOpacity() const - { - if (!children.size()) - return true; - if (flags & QGraphicsItem::ItemDoesntPropagateOpacityToChildren) - return false; - - for (int i = 0; i < children.size(); ++i) { - if (children.at(i)->d_ptr->flags & QGraphicsItem::ItemIgnoresParentOpacity) - return false; - } - return true; - } - - inline bool childrenClippedToShape() const - { return (flags & QGraphicsItem::ItemClipsChildrenToShape) || children.isEmpty(); } - - inline bool isInvisible() const - { - return !visible || (childrenCombineOpacity() && isFullyTransparent()); - } - - inline void markParentDirty(bool updateBoundingRect = false); - - void setFocusHelper(Qt::FocusReason focusReason, bool climb, bool focusFromHide); - void clearFocusHelper(bool giveFocusToParent); - void setSubFocus(QGraphicsItem *rootItem = 0, QGraphicsItem *stopItem = 0); - void clearSubFocus(QGraphicsItem *rootItem = 0, QGraphicsItem *stopItem = 0); - void resetFocusProxy(); - virtual void subFocusItemChange(); - virtual void focusScopeItemChange(bool isSubFocusItem); - - static void children_append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item); - static int children_count(QDeclarativeListProperty<QGraphicsObject> *list); - static QGraphicsObject *children_at(QDeclarativeListProperty<QGraphicsObject> *list, int); - static void children_clear(QDeclarativeListProperty<QGraphicsObject> *list); - - inline QTransform transformToParent() const; - inline void ensureSortedChildren(); - static inline bool insertionOrder(QGraphicsItem *a, QGraphicsItem *b); - void ensureSequentialSiblingIndex(); - inline void sendScenePosChange(); - virtual void siblingOrderChange(); - - // Private Properties - virtual qreal width() const; - virtual void setWidth(qreal); - virtual void resetWidth(); - - virtual qreal height() const; - virtual void setHeight(qreal); - virtual void resetHeight(); - - QRectF childrenBoundingRect; - QRectF needsRepaint; - QMap<QWidget *, QRect> paintedViewBoundingRects; - QPointF pos; - qreal z; - qreal opacity; - QGraphicsScene *scene; - QGraphicsItem *parent; - QList<QGraphicsItem *> children; - struct TransformData; - TransformData *transformData; - QGraphicsEffect *graphicsEffect; - QTransform sceneTransform; - int index; - int siblingIndex; - int itemDepth; // Lazily calculated when calling depth(). - QGraphicsItem *focusProxy; - QList<QGraphicsItem **> focusProxyRefs; - QGraphicsItem *subFocusItem; - QGraphicsItem *focusScopeItem; - Qt::InputMethodHints imHints; - QGraphicsItem::PanelModality panelModality; -#ifndef QT_NO_GESTURES - QMap<Qt::GestureType, Qt::GestureFlags> gestureContext; -#endif - - // Packed 32 bits - quint32 acceptedMouseButtons : 5; - quint32 visible : 1; - quint32 explicitlyHidden : 1; - quint32 enabled : 1; - quint32 explicitlyDisabled : 1; - quint32 selected : 1; - quint32 acceptsHover : 1; - quint32 acceptDrops : 1; - quint32 isMemberOfGroup : 1; - quint32 handlesChildEvents : 1; - quint32 itemDiscovered : 1; - quint32 hasCursor : 1; - quint32 ancestorFlags : 4; - quint32 cacheMode : 2; - quint32 hasBoundingRegionGranularity : 1; - quint32 isWidget : 1; - quint32 dirty : 1; - quint32 dirtyChildren : 1; - quint32 localCollisionHack : 1; - quint32 inSetPosHelper : 1; - quint32 needSortChildren : 1; - quint32 allChildrenDirty : 1; - quint32 fullUpdatePending : 1; - quint32 dirtyChildrenBoundingRect : 1; - - // Packed 32 bits - quint32 flags : 19; - quint32 paintedViewBoundingRectsNeedRepaint : 1; - quint32 dirtySceneTransform : 1; - quint32 geometryChanged : 1; - quint32 inDestructor : 1; - quint32 isObject : 1; - quint32 ignoreVisible : 1; - quint32 ignoreOpacity : 1; - quint32 acceptTouchEvents : 1; - quint32 acceptedTouchBeginEvent : 1; - quint32 filtersDescendantEvents : 1; - quint32 sceneTransformTranslateOnly : 1; - quint32 notifyBoundingRectChanged : 1; - quint32 notifyInvalidated : 1; - - // New 32 bits - quint32 mouseSetsFocus : 1; - quint32 explicitActivate : 1; - quint32 wantsActive : 1; - quint32 holesInSiblingIndex : 1; - quint32 sequentialOrdering : 1; - quint32 updateDueToGraphicsEffect : 1; - quint32 scenePosDescendants : 1; - quint32 pendingPolish : 1; - quint32 mayHaveChildWithGraphicsEffect : 1; - quint32 isDeclarativeItem : 1; - quint32 sendParentChangeNotification : 1; - quint32 padding : 21; - - // Optional stacking order - int globalStackingOrder; - QGraphicsItem *q_ptr; -}; - -struct QGraphicsItemPrivate::TransformData -{ - QTransform transform; - qreal scale; - qreal rotation; - qreal xOrigin; - qreal yOrigin; - QList<QGraphicsTransform *> graphicsTransforms; - bool onlyTransform; - - TransformData() : - scale(1.0), rotation(0.0), - xOrigin(0.0), yOrigin(0.0), - onlyTransform(true) - { } - - QTransform computedFullTransform(QTransform *postmultiplyTransform = 0) const - { - if (onlyTransform) { - if (!postmultiplyTransform || postmultiplyTransform->isIdentity()) - return transform; - if (transform.isIdentity()) - return *postmultiplyTransform; - return transform * *postmultiplyTransform; - } - - QTransform x(transform); - if (!graphicsTransforms.isEmpty()) { - QMatrix4x4 m; - for (int i = 0; i < graphicsTransforms.size(); ++i) - graphicsTransforms.at(i)->applyTo(&m); - x *= m.toTransform(); - } - x.translate(xOrigin, yOrigin); - x.rotate(rotation); - x.scale(scale, scale); - x.translate(-xOrigin, -yOrigin); - if (postmultiplyTransform) - x *= *postmultiplyTransform; - return x; - } -}; - -struct QGraphicsItemPaintInfo -{ - inline QGraphicsItemPaintInfo(const QTransform *const xform1, const QTransform *const xform2, - const QTransform *const xform3, - QRegion *r, QWidget *w, QStyleOptionGraphicsItem *opt, - QPainter *p, qreal o, bool b1, bool b2) - : viewTransform(xform1), transformPtr(xform2), effectTransform(xform3), exposedRegion(r), widget(w), - option(opt), painter(p), opacity(o), wasDirtySceneTransform(b1), drawItem(b2) - {} - - const QTransform *viewTransform; - const QTransform *transformPtr; - const QTransform *effectTransform; - QRegion *exposedRegion; - QWidget *widget; - QStyleOptionGraphicsItem *option; - QPainter *painter; - qreal opacity; - quint32 wasDirtySceneTransform : 1; - quint32 drawItem : 1; -}; - -#ifndef QT_NO_GRAPHICSEFFECT -class QGraphicsItemEffectSourcePrivate : public QGraphicsEffectSourcePrivate -{ -public: - QGraphicsItemEffectSourcePrivate(QGraphicsItem *i) - : QGraphicsEffectSourcePrivate(), item(i), info(0) - {} - - inline void detach() - { - item->d_ptr->graphicsEffect = 0; - item->prepareGeometryChange(); - } - - inline const QGraphicsItem *graphicsItem() const - { return item; } - - inline const QWidget *widget() const - { return 0; } - - inline void update() { - item->d_ptr->updateDueToGraphicsEffect = true; - item->update(); - item->d_ptr->updateDueToGraphicsEffect = false; - } - - inline void effectBoundingRectChanged() - { item->prepareGeometryChange(); } - - inline bool isPixmap() const - { - return item->type() == QGraphicsPixmapItem::Type - && !(item->flags() & QGraphicsItem::ItemIsSelectable) - && item->d_ptr->children.size() == 0; - //|| (item->d_ptr->isObject && qobject_cast<QDeclarativeImage *>(q_func())); - } - - inline const QStyleOption *styleOption() const - { return info ? info->option : 0; } - - inline QRect deviceRect() const - { - if (!info || !info->widget) { - qWarning("QGraphicsEffectSource::deviceRect: Not yet implemented, lacking device context"); - return QRect(); - } - return info->widget->rect(); - } - - QRectF boundingRect(Qt::CoordinateSystem system) const; - void draw(QPainter *); - QPixmap pixmap(Qt::CoordinateSystem system, - QPoint *offset, - QGraphicsEffect::PixmapPadMode mode) const; - QRect paddedEffectRect(Qt::CoordinateSystem system, QGraphicsEffect::PixmapPadMode mode, const QRectF &sourceRect, bool *unpadded = 0) const; - - QGraphicsItem *item; - QGraphicsItemPaintInfo *info; - QTransform lastEffectTransform; -}; -#endif //QT_NO_GRAPHICSEFFECT - -/*! - Returns true if \a item1 is on top of \a item2. - The items don't need to be siblings. - - \internal -*/ -inline bool qt_closestItemFirst(const QGraphicsItem *item1, const QGraphicsItem *item2) -{ - // Siblings? Just check their z-values. - const QGraphicsItemPrivate *d1 = item1->d_ptr.data(); - const QGraphicsItemPrivate *d2 = item2->d_ptr.data(); - if (d1->parent == d2->parent) - return qt_closestLeaf(item1, item2); - - // Find common ancestor, and each item's ancestor closest to the common - // ancestor. - int item1Depth = d1->depth(); - int item2Depth = d2->depth(); - const QGraphicsItem *p = item1; - const QGraphicsItem *t1 = item1; - while (item1Depth > item2Depth && (p = p->d_ptr->parent)) { - if (p == item2) { - // item2 is one of item1's ancestors; item1 is on top - return !(t1->d_ptr->flags & QGraphicsItem::ItemStacksBehindParent); - } - t1 = p; - --item1Depth; - } - p = item2; - const QGraphicsItem *t2 = item2; - while (item2Depth > item1Depth && (p = p->d_ptr->parent)) { - if (p == item1) { - // item1 is one of item2's ancestors; item1 is not on top - return (t2->d_ptr->flags & QGraphicsItem::ItemStacksBehindParent); - } - t2 = p; - --item2Depth; - } - - // item1Ancestor is now at the same level as item2Ancestor, but not the same. - const QGraphicsItem *p1 = t1; - const QGraphicsItem *p2 = t2; - while (t1 && t1 != t2) { - p1 = t1; - p2 = t2; - t1 = t1->d_ptr->parent; - t2 = t2->d_ptr->parent; - } - - // in case we have a common ancestor, we compare the immediate children in the ancestor's path. - // otherwise we compare the respective items' topLevelItems directly. - return qt_closestLeaf(p1, p2); -} - -/*! - Returns true if \a item2 is on top of \a item1. - The items don't need to be siblings. - - \internal -*/ -inline bool qt_closestItemLast(const QGraphicsItem *item1, const QGraphicsItem *item2) -{ - return qt_closestItemFirst(item2, item1); -} - -/*! - \internal -*/ -inline bool qt_closestLeaf(const QGraphicsItem *item1, const QGraphicsItem *item2) -{ - // Return true if sibling item1 is on top of item2. - const QGraphicsItemPrivate *d1 = item1->d_ptr.data(); - const QGraphicsItemPrivate *d2 = item2->d_ptr.data(); - bool f1 = d1->flags & QGraphicsItem::ItemStacksBehindParent; - bool f2 = d2->flags & QGraphicsItem::ItemStacksBehindParent; - if (f1 != f2) - return f2; - if (d1->z != d2->z) - return d1->z > d2->z; - return d1->siblingIndex > d2->siblingIndex; -} - -/*! - \internal -*/ -inline bool qt_notclosestLeaf(const QGraphicsItem *item1, const QGraphicsItem *item2) -{ return qt_closestLeaf(item2, item1); } - -/* - return the full transform of the item to the parent. This include the position and all the transform data -*/ -inline QTransform QGraphicsItemPrivate::transformToParent() const -{ - QTransform matrix; - combineTransformToParent(&matrix); - return matrix; -} - -/*! - \internal -*/ -inline void QGraphicsItemPrivate::ensureSortedChildren() -{ - if (needSortChildren) { - needSortChildren = 0; - sequentialOrdering = 1; - if (children.isEmpty()) - return; - qSort(children.begin(), children.end(), qt_notclosestLeaf); - for (int i = 0; i < children.size(); ++i) { - if (children.at(i)->d_ptr->siblingIndex != i) { - sequentialOrdering = 0; - break; - } - } - } -} - -/*! - \internal -*/ -inline bool QGraphicsItemPrivate::insertionOrder(QGraphicsItem *a, QGraphicsItem *b) -{ - return a->d_ptr->siblingIndex < b->d_ptr->siblingIndex; -} - -/*! - \internal -*/ -inline void QGraphicsItemPrivate::markParentDirty(bool updateBoundingRect) -{ - QGraphicsItemPrivate *parentp = this; -#ifndef QT_NO_GRAPHICSEFFECT - if (updateBoundingRect && parentp->graphicsEffect && !parentp->inSetPosHelper) { - parentp->notifyInvalidated = 1; - static_cast<QGraphicsItemEffectSourcePrivate *>(parentp->graphicsEffect->d_func() - ->source->d_func())->invalidateCache(); - } -#endif - while (parentp->parent) { - parentp = parentp->parent->d_ptr.data(); - parentp->dirtyChildren = 1; - - if (updateBoundingRect) { - parentp->dirtyChildrenBoundingRect = 1; - // ### Only do this if the parent's effect applies to the entire subtree. - parentp->notifyBoundingRectChanged = 1; - } -#ifndef QT_NO_GRAPHICSEFFECT - if (parentp->graphicsEffect) { - if (updateBoundingRect) { - static_cast<QGraphicsItemEffectSourcePrivate *>(parentp->graphicsEffect->d_func() - ->source->d_func())->invalidateCache(); - parentp->notifyInvalidated = 1; - } - if (parentp->scene && parentp->graphicsEffect->isEnabled()) { - parentp->dirty = 1; - parentp->fullUpdatePending = 1; - } - } -#endif - } -} - -QT_END_NAMESPACE - -#endif // QT_NO_GRAPHICSVIEW - -#endif |