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231 lines
9 KiB
C
231 lines
9 KiB
C
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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QDECLARATIVEITEM_H
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#define QDECLARATIVEITEM_H
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#include <QtDeclarative/qdeclarative.h>
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#include <QtDeclarative/qdeclarativecomponent.h>
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#include <QtCore/QObject>
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#include <QtCore/QList>
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#include <QtGui/qgraphicsitem.h>
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#include <QtGui/qgraphicstransform.h>
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#include <QtGui/qfont.h>
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#include <QtGui/qaction.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class QDeclarativeState;
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class QDeclarativeAnchorLine;
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class QDeclarativeTransition;
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class QDeclarativeKeyEvent;
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class QDeclarativeAnchors;
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class QDeclarativeItemPrivate;
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class Q_DECLARATIVE_EXPORT QDeclarativeItem : public QGraphicsObject, public QDeclarativeParserStatus
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{
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Q_OBJECT
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Q_INTERFACES(QDeclarativeParserStatus)
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Q_PROPERTY(QDeclarativeItem * parent READ parentItem WRITE setParentItem NOTIFY parentChanged DESIGNABLE false FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeListProperty<QObject> data READ data DESIGNABLE false)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeListProperty<QObject> resources READ resources DESIGNABLE false)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeListProperty<QDeclarativeState> states READ states DESIGNABLE false)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeListProperty<QDeclarativeTransition> transitions READ transitions DESIGNABLE false)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QString state READ state WRITE setState NOTIFY stateChanged)
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Q_PROPERTY(QRectF childrenRect READ childrenRect NOTIFY childrenRectChanged DESIGNABLE false FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchors * anchors READ anchors DESIGNABLE false CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine left READ left CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine right READ right CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine horizontalCenter READ horizontalCenter CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine top READ top CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine bottom READ bottom CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine verticalCenter READ verticalCenter CONSTANT FINAL)
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Q_PRIVATE_PROPERTY(QDeclarativeItem::d_func(), QDeclarativeAnchorLine baseline READ baseline CONSTANT FINAL)
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Q_PROPERTY(qreal baselineOffset READ baselineOffset WRITE setBaselineOffset NOTIFY baselineOffsetChanged)
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Q_PROPERTY(bool clip READ clip WRITE setClip NOTIFY clipChanged) // ### move to QGI/QGO, NOTIFY
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Q_PROPERTY(bool focus READ hasFocus WRITE setFocus NOTIFY focusChanged FINAL)
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Q_PROPERTY(bool activeFocus READ hasActiveFocus NOTIFY activeFocusChanged)
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Q_PROPERTY(QDeclarativeListProperty<QGraphicsTransform> transform READ transform DESIGNABLE false FINAL)
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Q_PROPERTY(TransformOrigin transformOrigin READ transformOrigin WRITE setTransformOrigin NOTIFY transformOriginChanged)
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Q_PROPERTY(QPointF transformOriginPoint READ transformOriginPoint) // transformOriginPoint is read-only for Item
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Q_PROPERTY(bool smooth READ smooth WRITE setSmooth NOTIFY smoothChanged)
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Q_PROPERTY(qreal implicitWidth READ implicitWidth WRITE setImplicitWidth NOTIFY implicitWidthChanged REVISION 1)
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Q_PROPERTY(qreal implicitHeight READ implicitHeight WRITE setImplicitHeight NOTIFY implicitHeightChanged REVISION 1)
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Q_ENUMS(TransformOrigin)
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Q_CLASSINFO("DefaultProperty", "data")
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public:
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enum TransformOrigin {
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TopLeft, Top, TopRight,
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Left, Center, Right,
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BottomLeft, Bottom, BottomRight
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};
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QDeclarativeItem(QDeclarativeItem *parent = 0);
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virtual ~QDeclarativeItem();
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QDeclarativeItem *parentItem() const;
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void setParentItem(QDeclarativeItem *parent);
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QRectF childrenRect();
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bool clip() const;
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void setClip(bool);
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qreal baselineOffset() const;
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void setBaselineOffset(qreal);
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QDeclarativeListProperty<QGraphicsTransform> transform();
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qreal width() const;
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void setWidth(qreal);
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void resetWidth();
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qreal implicitWidth() const;
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qreal height() const;
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void setHeight(qreal);
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void resetHeight();
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qreal implicitHeight() const;
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void setSize(const QSizeF &size);
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TransformOrigin transformOrigin() const;
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void setTransformOrigin(TransformOrigin);
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bool smooth() const;
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void setSmooth(bool);
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QRectF boundingRect() const;
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virtual void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
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bool hasActiveFocus() const;
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bool hasFocus() const;
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void setFocus(bool);
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bool keepMouseGrab() const;
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void setKeepMouseGrab(bool);
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Q_INVOKABLE QScriptValue mapFromItem(const QScriptValue &item, qreal x, qreal y) const;
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Q_INVOKABLE QScriptValue mapToItem(const QScriptValue &item, qreal x, qreal y) const;
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Q_INVOKABLE void forceActiveFocus();
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Q_INVOKABLE QDeclarativeItem *childAt(qreal x, qreal y) const;
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Q_SIGNALS:
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void childrenRectChanged(const QRectF &);
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void baselineOffsetChanged(qreal);
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void stateChanged(const QString &);
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void focusChanged(bool);
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void activeFocusChanged(bool);
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void parentChanged(QDeclarativeItem *);
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void transformOriginChanged(TransformOrigin);
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void smoothChanged(bool);
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void clipChanged(bool);
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Q_REVISION(1) void implicitWidthChanged();
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Q_REVISION(1) void implicitHeightChanged();
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protected:
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bool isComponentComplete() const;
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virtual bool sceneEvent(QEvent *);
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virtual bool event(QEvent *);
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virtual QVariant itemChange(GraphicsItemChange, const QVariant &);
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void setImplicitWidth(qreal);
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bool widthValid() const; // ### better name?
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void setImplicitHeight(qreal);
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bool heightValid() const; // ### better name?
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virtual void classBegin();
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virtual void componentComplete();
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virtual void keyPressEvent(QKeyEvent *event);
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virtual void keyReleaseEvent(QKeyEvent *event);
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void keyPressPreHandler(QKeyEvent *);
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void keyReleasePreHandler(QKeyEvent *);
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virtual void geometryChanged(const QRectF &newGeometry,
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const QRectF &oldGeometry);
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protected:
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QDeclarativeItem(QDeclarativeItemPrivate &dd, QDeclarativeItem *parent = 0);
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private:
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Q_DISABLE_COPY(QDeclarativeItem)
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Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativeItem)
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};
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template<typename T>
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T qobject_cast(QGraphicsObject *o)
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{
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QObject *obj = o;
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return qobject_cast<T>(obj);
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}
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// ### move to QGO
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template<typename T>
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T qobject_cast(QGraphicsItem *item)
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{
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if (!item) return 0;
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QObject *o = item->toGraphicsObject();
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return qobject_cast<T>(o);
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}
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#ifndef QT_NO_DEBUG_STREAM
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QDebug Q_DECLARATIVE_EXPORT operator<<(QDebug debug, QDeclarativeItem *item);
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#endif
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QT_END_NAMESPACE
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QML_DECLARE_TYPE(QDeclarativeItem)
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QML_DECLARE_TYPE(QGraphicsObject)
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QML_DECLARE_TYPE(QGraphicsTransform)
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QML_DECLARE_TYPE(QGraphicsScale)
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QML_DECLARE_TYPE(QGraphicsRotation)
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QML_DECLARE_TYPE(QGraphicsWidget)
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QML_DECLARE_TYPE(QAction)
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QT_END_HEADER
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#endif // QDECLARATIVEITEM_H
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