qgraphicsitem.h
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上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 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.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
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- ****************************************************************************/
- #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
- };
- 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
- };
- 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);
- 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;
- void setTransform(const QTransform &matrix, bool combine = false);
- void resetTransform();
-
- void rotate(qreal angle);
- void scale(qreal sx, qreal sy);
- void shear(qreal sh, qreal sv);
- void translate(qreal dx, qreal dy);
- 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;
- 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;
- 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;
- 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 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;
- 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 ::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 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)); }
- 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 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);
- #endif
- QT_END_NAMESPACE
- Q_DECLARE_METATYPE(QGraphicsItem *)
- Q_DECLARE_METATYPE(QGraphicsScene *)
- QT_END_HEADER
- #endif
- #endif // QT_NO_GRAPHICSVIEW