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Diffstat (limited to 'src/gui/graphicsview/qgraphicsitem.h')
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diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h new file mode 100644 index 0000000..1fce3db --- /dev/null +++ b/src/gui/graphicsview/qgraphicsitem.h @@ -0,0 +1,1032 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGRAPHICSITEM_H +#define QGRAPHICSITEM_H + +#include <QtCore/qglobal.h> +#include <QtCore/qobject.h> +#include <QtCore/qvariant.h> +#include <QtCore/qrect.h> +#include <QtGui/qpainterpath.h> +#include <QtGui/qpixmap.h> + +class tst_QGraphicsItem; + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW + +class QBrush; +class QCursor; +class QFocusEvent; +class QGraphicsItemGroup; +class QGraphicsSceneContextMenuEvent; +class QGraphicsSceneDragDropEvent; +class QGraphicsSceneEvent; +class QGraphicsSceneHoverEvent; +class QGraphicsSceneMouseEvent; +class QGraphicsSceneWheelEvent; +class QGraphicsScene; +class QGraphicsWidget; +class QInputMethodEvent; +class QKeyEvent; +class QMatrix; +class QMenu; +class QPainter; +class QPen; +class QPointF; +class QRectF; +class QStyleOptionGraphicsItem; + +class QGraphicsItemPrivate; +class Q_GUI_EXPORT QGraphicsItem +{ +public: + enum GraphicsItemFlag { + ItemIsMovable = 0x1, + ItemIsSelectable = 0x2, + ItemIsFocusable = 0x4, + ItemClipsToShape = 0x8, + ItemClipsChildrenToShape = 0x10, + ItemIgnoresTransformations = 0x20, + ItemIgnoresParentOpacity = 0x40, + ItemDoesntPropagateOpacityToChildren = 0x80, + ItemStacksBehindParent = 0x100 + }; + Q_DECLARE_FLAGS(GraphicsItemFlags, GraphicsItemFlag) + + enum GraphicsItemChange { + ItemPositionChange, + ItemMatrixChange, + ItemVisibleChange, + ItemEnabledChange, + ItemSelectedChange, + ItemParentChange, + ItemChildAddedChange, + ItemChildRemovedChange, + ItemTransformChange, + ItemPositionHasChanged, + ItemTransformHasChanged, + ItemSceneChange, + ItemVisibleHasChanged, + ItemEnabledHasChanged, + ItemSelectedHasChanged, + ItemParentHasChanged, + ItemSceneHasChanged, + ItemCursorChange, + ItemCursorHasChanged, + ItemToolTipChange, + ItemToolTipHasChanged, + ItemFlagsChange, + ItemFlagsHaveChanged, + ItemZValueChange, + ItemZValueHasChanged, + ItemOpacityChange, + ItemOpacityHasChanged + }; + + enum CacheMode { + NoCache, + ItemCoordinateCache, + DeviceCoordinateCache + }; + + QGraphicsItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + virtual ~QGraphicsItem(); + + QGraphicsScene *scene() const; + + QGraphicsItem *parentItem() const; + QGraphicsItem *topLevelItem() const; + QGraphicsWidget *parentWidget() const; + QGraphicsWidget *topLevelWidget() const; + QGraphicsWidget *window() const; + void setParentItem(QGraphicsItem *parent); + QList<QGraphicsItem *> children() const; // ### obsolete + QList<QGraphicsItem *> childItems() const; + bool isWidget() const; + bool isWindow() const; + + QGraphicsItemGroup *group() const; + void setGroup(QGraphicsItemGroup *group); + + GraphicsItemFlags flags() const; + void setFlag(GraphicsItemFlag flag, bool enabled = true); + void setFlags(GraphicsItemFlags flags); + + CacheMode cacheMode() const; + void setCacheMode(CacheMode mode, const QSize &cacheSize = QSize()); + +#ifndef QT_NO_TOOLTIP + QString toolTip() const; + void setToolTip(const QString &toolTip); +#endif + +#ifndef QT_NO_CURSOR + QCursor cursor() const; + void setCursor(const QCursor &cursor); + bool hasCursor() const; + void unsetCursor(); +#endif + + bool isVisible() const; + bool isVisibleTo(const QGraphicsItem *parent) const; + void setVisible(bool visible); + inline void hide() { setVisible(false); } + inline void show() { setVisible(true); } + + bool isEnabled() const; + void setEnabled(bool enabled); + + bool isSelected() const; + void setSelected(bool selected); + + bool acceptDrops() const; + void setAcceptDrops(bool on); + + qreal opacity() const; + qreal effectiveOpacity() const; + void setOpacity(qreal opacity); + + Qt::MouseButtons acceptedMouseButtons() const; + void setAcceptedMouseButtons(Qt::MouseButtons buttons); + + bool acceptsHoverEvents() const; // obsolete + void setAcceptsHoverEvents(bool enabled); // obsolete + bool acceptHoverEvents() const; + void setAcceptHoverEvents(bool enabled); + + bool handlesChildEvents() const; + void setHandlesChildEvents(bool enabled); + + bool hasFocus() const; + void setFocus(Qt::FocusReason focusReason = Qt::OtherFocusReason); + void clearFocus(); + + void grabMouse(); + void ungrabMouse(); + void grabKeyboard(); + void ungrabKeyboard(); + + // Positioning in scene coordinates + QPointF pos() const; + inline qreal x() const { return pos().x(); } + inline qreal y() const { return pos().y(); } + QPointF scenePos() const; + void setPos(const QPointF &pos); + inline void setPos(qreal x, qreal y); + inline void moveBy(qreal dx, qreal dy) { setPos(pos().x() + dx, pos().y() + dy); } + + void ensureVisible(const QRectF &rect = QRectF(), int xmargin = 50, int ymargin = 50); + inline void ensureVisible(qreal x, qreal y, qreal w, qreal h, int xmargin = 50, int ymargin = 50); + + // Local transformation + QMatrix matrix() const; + QMatrix sceneMatrix() const; + void setMatrix(const QMatrix &matrix, bool combine = false); + void resetMatrix(); + QTransform transform() const; + QTransform sceneTransform() const; + QTransform deviceTransform(const QTransform &viewportTransform) const; + QTransform itemTransform(const QGraphicsItem *other, bool *ok = 0) const; + void setTransform(const QTransform &matrix, bool combine = false); + void resetTransform(); + + // ### obsolete? + void rotate(qreal angle); + void scale(qreal sx, qreal sy); + void shear(qreal sh, qreal sv); + void translate(qreal dx, qreal dy); + + // ### experimental + QPointF transformOrigin() const; + void setTransformOrigin(const QPointF ¢er); + qreal xScale() const; + void setXScale(qreal factor); + qreal yScale() const; + void setYScale(qreal factor); + qreal xRotation() const; + void setXRotation(qreal angle); + qreal yRotation() const; + void setYRotation(qreal angle); + qreal zRotation() const; + void setZRotation(qreal angle); + + virtual void advance(int phase); + + // Stacking order + qreal zValue() const; + void setZValue(qreal z); + + // Hit test + virtual QRectF boundingRect() const = 0; + QRectF childrenBoundingRect() const; + QRectF sceneBoundingRect() const; + virtual QPainterPath shape() const; + bool isClipped() const; + QPainterPath clipPath() const; + virtual bool contains(const QPointF &point) const; + virtual bool collidesWithItem(const QGraphicsItem *other, Qt::ItemSelectionMode mode = Qt::IntersectsItemShape) const; + virtual bool collidesWithPath(const QPainterPath &path, Qt::ItemSelectionMode mode = Qt::IntersectsItemShape) const; + QList<QGraphicsItem *> collidingItems(Qt::ItemSelectionMode mode = Qt::IntersectsItemShape) const; + bool isObscured() const; + bool isObscured(const QRectF &rect) const; // ### Qt 5: merge with isObscured(), add QRectF arg to isObscuredBy() + inline bool isObscured(qreal x, qreal y, qreal w, qreal h) const; + virtual bool isObscuredBy(const QGraphicsItem *item) const; + virtual QPainterPath opaqueArea() const; + + QRegion boundingRegion(const QTransform &itemToDeviceTransform) const; + qreal boundingRegionGranularity() const; + void setBoundingRegionGranularity(qreal granularity); + + // Drawing + virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) = 0; + void update(const QRectF &rect = QRectF()); + inline void update(qreal x, qreal y, qreal width, qreal height); + void scroll(qreal dx, qreal dy, const QRectF &rect = QRectF()); + + // Coordinate mapping + QPointF mapToItem(const QGraphicsItem *item, const QPointF &point) const; + QPointF mapToParent(const QPointF &point) const; + QPointF mapToScene(const QPointF &point) const; + QPolygonF mapToItem(const QGraphicsItem *item, const QRectF &rect) const; + QPolygonF mapToParent(const QRectF &rect) const; + QPolygonF mapToScene(const QRectF &rect) const; + QRectF mapRectToItem(const QGraphicsItem *item, const QRectF &rect) const; + QRectF mapRectToParent(const QRectF &rect) const; + QRectF mapRectToScene(const QRectF &rect) const; + QPolygonF mapToItem(const QGraphicsItem *item, const QPolygonF &polygon) const; + QPolygonF mapToParent(const QPolygonF &polygon) const; + QPolygonF mapToScene(const QPolygonF &polygon) const; + QPainterPath mapToItem(const QGraphicsItem *item, const QPainterPath &path) const; + QPainterPath mapToParent(const QPainterPath &path) const; + QPainterPath mapToScene(const QPainterPath &path) const; + QPointF mapFromItem(const QGraphicsItem *item, const QPointF &point) const; + QPointF mapFromParent(const QPointF &point) const; + QPointF mapFromScene(const QPointF &point) const; + QPolygonF mapFromItem(const QGraphicsItem *item, const QRectF &rect) const; + QPolygonF mapFromParent(const QRectF &rect) const; + QPolygonF mapFromScene(const QRectF &rect) const; + QRectF mapRectFromItem(const QGraphicsItem *item, const QRectF &rect) const; + QRectF mapRectFromParent(const QRectF &rect) const; + QRectF mapRectFromScene(const QRectF &rect) const; + QPolygonF mapFromItem(const QGraphicsItem *item, const QPolygonF &polygon) const; + QPolygonF mapFromParent(const QPolygonF &polygon) const; + QPolygonF mapFromScene(const QPolygonF &polygon) const; + QPainterPath mapFromItem(const QGraphicsItem *item, const QPainterPath &path) const; + QPainterPath mapFromParent(const QPainterPath &path) const; + QPainterPath mapFromScene(const QPainterPath &path) const; + + inline QPointF mapToItem(const QGraphicsItem *item, qreal x, qreal y) const; + inline QPointF mapToParent(qreal x, qreal y) const; + inline QPointF mapToScene(qreal x, qreal y) const; + inline QPolygonF mapToItem(const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const; + inline QPolygonF mapToParent(qreal x, qreal y, qreal w, qreal h) const; + inline QPolygonF mapToScene(qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectToItem(const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectToParent(qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectToScene(qreal x, qreal y, qreal w, qreal h) const; + inline QPointF mapFromItem(const QGraphicsItem *item, qreal x, qreal y) const; + inline QPointF mapFromParent(qreal x, qreal y) const; + inline QPointF mapFromScene(qreal x, qreal y) const; + inline QPolygonF mapFromItem(const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const; + inline QPolygonF mapFromParent(qreal x, qreal y, qreal w, qreal h) const; + inline QPolygonF mapFromScene(qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectFromItem(const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectFromParent(qreal x, qreal y, qreal w, qreal h) const; + inline QRectF mapRectFromScene(qreal x, qreal y, qreal w, qreal h) const; + + bool isAncestorOf(const QGraphicsItem *child) const; + QGraphicsItem *commonAncestorItem(const QGraphicsItem *other) const; + bool isUnderMouse() const; + + // Custom data + QVariant data(int key) const; + void setData(int key, const QVariant &value); + + enum { + Type = 1, + UserType = 65536 + }; + virtual int type() const; + + void installSceneEventFilter(QGraphicsItem *filterItem); + void removeSceneEventFilter(QGraphicsItem *filterItem); + +protected: + virtual bool sceneEventFilter(QGraphicsItem *watched, QEvent *event); + virtual bool sceneEvent(QEvent *event); + virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event); + virtual void dragEnterEvent(QGraphicsSceneDragDropEvent *event); + virtual void dragLeaveEvent(QGraphicsSceneDragDropEvent *event); + virtual void dragMoveEvent(QGraphicsSceneDragDropEvent *event); + virtual void dropEvent(QGraphicsSceneDragDropEvent *event); + virtual void focusInEvent(QFocusEvent *event); + virtual void focusOutEvent(QFocusEvent *event); + virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event); + virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event); + virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event); + virtual void keyPressEvent(QKeyEvent *event); + virtual void keyReleaseEvent(QKeyEvent *event); + virtual void mousePressEvent(QGraphicsSceneMouseEvent *event); + virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event); + virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); + virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); + virtual void wheelEvent(QGraphicsSceneWheelEvent *event); + virtual void inputMethodEvent(QInputMethodEvent *event); + virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const; + + virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value); + + enum Extension { + UserExtension = 0x80000000 + }; + virtual bool supportsExtension(Extension extension) const; + virtual void setExtension(Extension extension, const QVariant &variant); + virtual QVariant extension(const QVariant &variant) const; + +protected: + QGraphicsItem(QGraphicsItemPrivate &dd, + QGraphicsItem *parent, QGraphicsScene *scene); + QGraphicsItemPrivate *d_ptr; + + void addToIndex(); + void removeFromIndex(); + void prepareGeometryChange(); + +private: + Q_DISABLE_COPY(QGraphicsItem) + Q_DECLARE_PRIVATE(QGraphicsItem) + friend class QGraphicsItemGroup; + friend class QGraphicsScene; + friend class QGraphicsScenePrivate; + friend class QGraphicsSceneFindItemBspTreeVisitor; + friend class QGraphicsView; + friend class QGraphicsViewPrivate; + friend class QGraphicsWidget; + friend class QGraphicsWidgetPrivate; + friend class QGraphicsProxyWidgetPrivate; + friend class ::tst_QGraphicsItem; + friend bool qt_closestLeaf(const QGraphicsItem *, const QGraphicsItem *); + friend bool qt_closestItemFirst(const QGraphicsItem *, const QGraphicsItem *); +}; + +Q_DECLARE_OPERATORS_FOR_FLAGS(QGraphicsItem::GraphicsItemFlags) + +inline void QGraphicsItem::setPos(qreal ax, qreal ay) +{ setPos(QPointF(ax, ay)); } +inline void QGraphicsItem::ensureVisible(qreal ax, qreal ay, qreal w, qreal h, int xmargin, int ymargin) +{ ensureVisible(QRectF(ax, ay, w, h), xmargin, ymargin); } +inline void QGraphicsItem::update(qreal ax, qreal ay, qreal width, qreal height) +{ update(QRectF(ax, ay, width, height)); } +inline bool QGraphicsItem::isObscured(qreal ax, qreal ay, qreal w, qreal h) const +{ return isObscured(QRectF(ax, ay, w, h)); } +inline QPointF QGraphicsItem::mapToItem(const QGraphicsItem *item, qreal ax, qreal ay) const +{ return mapToItem(item, QPointF(ax, ay)); } +inline QPointF QGraphicsItem::mapToParent(qreal ax, qreal ay) const +{ return mapToParent(QPointF(ax, ay)); } +inline QPointF QGraphicsItem::mapToScene(qreal ax, qreal ay) const +{ return mapToScene(QPointF(ax, ay)); } +inline QPointF QGraphicsItem::mapFromItem(const QGraphicsItem *item, qreal ax, qreal ay) const +{ return mapFromItem(item, QPointF(ax, ay)); } +inline QPointF QGraphicsItem::mapFromParent(qreal ax, qreal ay) const +{ return mapFromParent(QPointF(ax, ay)); } +inline QPointF QGraphicsItem::mapFromScene(qreal ax, qreal ay) const +{ return mapFromScene(QPointF(ax, ay)); } +inline QPolygonF QGraphicsItem::mapToItem(const QGraphicsItem *item, qreal ax, qreal ay, qreal w, qreal h) const +{ return mapToItem(item, QRectF(ax, ay, w, h)); } +inline QPolygonF QGraphicsItem::mapToParent(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapToParent(QRectF(ax, ay, w, h)); } +inline QPolygonF QGraphicsItem::mapToScene(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapToScene(QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectToItem(const QGraphicsItem *item, qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectToItem(item, QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectToParent(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectToParent(QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectToScene(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectToScene(QRectF(ax, ay, w, h)); } +inline QPolygonF QGraphicsItem::mapFromItem(const QGraphicsItem *item, qreal ax, qreal ay, qreal w, qreal h) const +{ return mapFromItem(item, QRectF(ax, ay, w, h)); } +inline QPolygonF QGraphicsItem::mapFromParent(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapFromParent(QRectF(ax, ay, w, h)); } +inline QPolygonF QGraphicsItem::mapFromScene(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapFromScene(QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectFromItem(const QGraphicsItem *item, qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectFromItem(item, QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectFromParent(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectFromParent(QRectF(ax, ay, w, h)); } +inline QRectF QGraphicsItem::mapRectFromScene(qreal ax, qreal ay, qreal w, qreal h) const +{ return mapRectFromScene(QRectF(ax, ay, w, h)); } + +class QAbstractGraphicsShapeItemPrivate; +class Q_GUI_EXPORT QAbstractGraphicsShapeItem : public QGraphicsItem +{ +public: + QAbstractGraphicsShapeItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QAbstractGraphicsShapeItem(); + + QPen pen() const; + void setPen(const QPen &pen); + + QBrush brush() const; + void setBrush(const QBrush &brush); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + +protected: + QAbstractGraphicsShapeItem(QAbstractGraphicsShapeItemPrivate &dd, + QGraphicsItem *parent, QGraphicsScene *scene); + +private: + Q_DISABLE_COPY(QAbstractGraphicsShapeItem) + Q_DECLARE_PRIVATE(QAbstractGraphicsShapeItem) +}; + +class QGraphicsPathItemPrivate; +class Q_GUI_EXPORT QGraphicsPathItem : public QAbstractGraphicsShapeItem +{ +public: + QGraphicsPathItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsPathItem(const QPainterPath &path, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsPathItem(); + + QPainterPath path() const; + void setPath(const QPainterPath &path); + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 2 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsPathItem) + Q_DECLARE_PRIVATE(QGraphicsPathItem) +}; + +class QGraphicsRectItemPrivate; +class Q_GUI_EXPORT QGraphicsRectItem : public QAbstractGraphicsShapeItem +{ +public: + QGraphicsRectItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsRectItem(const QRectF &rect, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsRectItem(qreal x, qreal y, qreal w, qreal h, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsRectItem(); + + QRectF rect() const; + void setRect(const QRectF &rect); + inline void setRect(qreal x, qreal y, qreal w, qreal h); + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 3 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsRectItem) + Q_DECLARE_PRIVATE(QGraphicsRectItem) +}; + +inline void QGraphicsRectItem::setRect(qreal ax, qreal ay, qreal w, qreal h) +{ setRect(QRectF(ax, ay, w, h)); } + +class QGraphicsEllipseItemPrivate; +class Q_GUI_EXPORT QGraphicsEllipseItem : public QAbstractGraphicsShapeItem +{ +public: + QGraphicsEllipseItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsEllipseItem(const QRectF &rect, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsEllipseItem(qreal x, qreal y, qreal w, qreal h, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsEllipseItem(); + + QRectF rect() const; + void setRect(const QRectF &rect); + inline void setRect(qreal x, qreal y, qreal w, qreal h); + + int startAngle() const; + void setStartAngle(int angle); + + int spanAngle() const; + void setSpanAngle(int angle); + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 4 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsEllipseItem) + Q_DECLARE_PRIVATE(QGraphicsEllipseItem) +}; + +inline void QGraphicsEllipseItem::setRect(qreal ax, qreal ay, qreal w, qreal h) +{ setRect(QRectF(ax, ay, w, h)); } + +class QGraphicsPolygonItemPrivate; +class Q_GUI_EXPORT QGraphicsPolygonItem : public QAbstractGraphicsShapeItem +{ +public: + QGraphicsPolygonItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsPolygonItem(const QPolygonF &polygon, + QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsPolygonItem(); + + QPolygonF polygon() const; + void setPolygon(const QPolygonF &polygon); + + Qt::FillRule fillRule() const; + void setFillRule(Qt::FillRule rule); + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 5 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsPolygonItem) + Q_DECLARE_PRIVATE(QGraphicsPolygonItem) +}; + +class QGraphicsLineItemPrivate; +class Q_GUI_EXPORT QGraphicsLineItem : public QGraphicsItem +{ +public: + QGraphicsLineItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsLineItem(const QLineF &line, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsLineItem(qreal x1, qreal y1, qreal x2, qreal y2, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsLineItem(); + + QPen pen() const; + void setPen(const QPen &pen); + + QLineF line() const; + void setLine(const QLineF &line); + inline void setLine(qreal x1, qreal y1, qreal x2, qreal y2) + { setLine(QLineF(x1, y1, x2, y2)); } + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 6 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsLineItem) + Q_DECLARE_PRIVATE(QGraphicsLineItem) +}; + +class QGraphicsPixmapItemPrivate; +class Q_GUI_EXPORT QGraphicsPixmapItem : public QGraphicsItem +{ +public: + enum ShapeMode { + MaskShape, + BoundingRectShape, + HeuristicMaskShape + }; + + QGraphicsPixmapItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsPixmapItem(const QPixmap &pixmap, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsPixmapItem(); + + QPixmap pixmap() const; + void setPixmap(const QPixmap &pixmap); + + Qt::TransformationMode transformationMode() const; + void setTransformationMode(Qt::TransformationMode mode); + + QPointF offset() const; + void setOffset(const QPointF &offset); + inline void setOffset(qreal x, qreal y); + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 7 }; + int type() const; + + ShapeMode shapeMode() const; + void setShapeMode(ShapeMode mode); + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsPixmapItem) + Q_DECLARE_PRIVATE(QGraphicsPixmapItem) +}; + +inline void QGraphicsPixmapItem::setOffset(qreal ax, qreal ay) +{ setOffset(QPointF(ax, ay)); } + +class QGraphicsTextItemPrivate; +class QTextDocument; +class QTextCursor; +class Q_GUI_EXPORT QGraphicsTextItem : public QObject, public QGraphicsItem +{ + Q_OBJECT + QDOC_PROPERTY(bool openExternalLinks READ openExternalLinks WRITE setOpenExternalLinks) + QDOC_PROPERTY(QTextCursor textCursor READ textCursor WRITE setTextCursor) + +public: + QGraphicsTextItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsTextItem(const QString &text, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsTextItem(); + + QString toHtml() const; + void setHtml(const QString &html); + + QString toPlainText() const; + void setPlainText(const QString &text); + + QFont font() const; + void setFont(const QFont &font); + + void setDefaultTextColor(const QColor &c); + QColor defaultTextColor() const; + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 8 }; + int type() const; + + void setTextWidth(qreal width); + qreal textWidth() const; + + void adjustSize(); + + void setDocument(QTextDocument *document); + QTextDocument *document() const; + + void setTextInteractionFlags(Qt::TextInteractionFlags flags); + Qt::TextInteractionFlags textInteractionFlags() const; + + void setTabChangesFocus(bool b); + bool tabChangesFocus() const; + + void setOpenExternalLinks(bool open); + bool openExternalLinks() const; + + void setTextCursor(const QTextCursor &cursor); + QTextCursor textCursor() const; + +Q_SIGNALS: + void linkActivated(const QString &); + void linkHovered(const QString &); + +protected: + bool sceneEvent(QEvent *event); + void mousePressEvent(QGraphicsSceneMouseEvent *event); + void mouseMoveEvent(QGraphicsSceneMouseEvent *event); + void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); + void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); + void contextMenuEvent(QGraphicsSceneContextMenuEvent *event); + void keyPressEvent(QKeyEvent *event); + void keyReleaseEvent(QKeyEvent *event); + void focusInEvent(QFocusEvent *event); + void focusOutEvent(QFocusEvent *event); + void dragEnterEvent(QGraphicsSceneDragDropEvent *event); + void dragLeaveEvent(QGraphicsSceneDragDropEvent *event); + void dragMoveEvent(QGraphicsSceneDragDropEvent *event); + void dropEvent(QGraphicsSceneDragDropEvent *event); + void inputMethodEvent(QInputMethodEvent *event); + void hoverEnterEvent(QGraphicsSceneHoverEvent *event); + void hoverMoveEvent(QGraphicsSceneHoverEvent *event); + void hoverLeaveEvent(QGraphicsSceneHoverEvent *event); + + QVariant inputMethodQuery(Qt::InputMethodQuery query) const; + + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsTextItem) + Q_PRIVATE_SLOT(dd, void _q_updateBoundingRect(const QSizeF &)) + Q_PRIVATE_SLOT(dd, void _q_update(QRectF)) + Q_PRIVATE_SLOT(dd, void _q_ensureVisible(QRectF)) + QGraphicsTextItemPrivate *dd; + friend class QGraphicsTextItemPrivate; +}; + +class QGraphicsSimpleTextItemPrivate; +class Q_GUI_EXPORT QGraphicsSimpleTextItem : public QAbstractGraphicsShapeItem +{ +public: + QGraphicsSimpleTextItem(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + QGraphicsSimpleTextItem(const QString &text, QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsSimpleTextItem(); + + void setText(const QString &text); + QString text() const; + + void setFont(const QFont &font); + QFont font() const; + + QRectF boundingRect() const; + QPainterPath shape() const; + bool contains(const QPointF &point) const; + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 9 }; + int type() const; + +protected: + bool supportsExtension(Extension extension) const; + void setExtension(Extension extension, const QVariant &variant); + QVariant extension(const QVariant &variant) const; + +private: + Q_DISABLE_COPY(QGraphicsSimpleTextItem) + Q_DECLARE_PRIVATE(QGraphicsSimpleTextItem) +}; + +class QGraphicsItemGroupPrivate; +class Q_GUI_EXPORT QGraphicsItemGroup : public QGraphicsItem +{ +public: + QGraphicsItemGroup(QGraphicsItem *parent = 0 +#ifndef Q_QDOC + // obsolete argument + , QGraphicsScene *scene = 0 +#endif + ); + ~QGraphicsItemGroup(); + + void addToGroup(QGraphicsItem *item); + void removeFromGroup(QGraphicsItem *item); + + QRectF boundingRect() const; + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + + bool isObscuredBy(const QGraphicsItem *item) const; + QPainterPath opaqueArea() const; + + enum { Type = 10 }; + int type() const; + +private: + Q_DISABLE_COPY(QGraphicsItemGroup) + Q_DECLARE_PRIVATE(QGraphicsItemGroup) +}; + +template <class T> inline T qgraphicsitem_cast(QGraphicsItem *item) +{ + return int(static_cast<T>(0)->Type) == int(QGraphicsItem::Type) + || (item && int(static_cast<T>(0)->Type) == item->type()) ? static_cast<T>(item) : 0; +} + +template <class T> inline T qgraphicsitem_cast(const QGraphicsItem *item) +{ + return int(static_cast<T>(0)->Type) == int(QGraphicsItem::Type) + || (item && int(static_cast<T>(0)->Type) == item->type()) ? static_cast<T>(item) : 0; +} + +#ifndef QT_NO_DEBUG_STREAM +Q_GUI_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem *item); +Q_GUI_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemChange change); +Q_GUI_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlag flag); +Q_GUI_EXPORT QDebug operator<<(QDebug debug, QGraphicsItem::GraphicsItemFlags flags); +#endif + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QGraphicsItem *) +Q_DECLARE_METATYPE(QGraphicsScene *) + +QT_BEGIN_NAMESPACE + +#endif // QT_NO_GRAPHICSVIEW + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QGRAPHICSITEM_H + |