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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative 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 QMLGRAPHICSITEM_H
#define QMLGRAPHICSITEM_H
#include <qml.h>
#include <qmlcomponent.h>
#include <QtCore/QObject>
#include <QtCore/QList>
#include <QtGui/qgraphicsitem.h>
#include <QtGui/qgraphicstransform.h>
#include <QtGui/qfont.h>
#include <QtGui/qaction.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QmlState;
class QmlGraphicsAnchorLine;
class QmlTransition;
class QmlGraphicsKeyEvent;
class QmlGraphicsAnchors;
class QmlGraphicsItemPrivate;
class Q_DECLARATIVE_EXPORT QmlGraphicsItem : public QGraphicsObject, public QmlParserStatus
{
Q_OBJECT
Q_INTERFACES(QmlParserStatus)
Q_PROPERTY(QmlGraphicsItem * parent READ parentItem WRITE setParentItem NOTIFY parentChanged DESIGNABLE false FINAL)
Q_PROPERTY(QmlList<QObject *> *data READ data DESIGNABLE false)
Q_PROPERTY(QmlList<QmlGraphicsItem *>* children READ fxChildren DESIGNABLE false NOTIFY childrenChanged)
Q_PROPERTY(QmlList<QObject *>* resources READ resources DESIGNABLE false)
Q_PROPERTY(QmlList<QmlState *>* states READ states DESIGNABLE false)
Q_PROPERTY(QmlList<QmlTransition *>* transitions READ transitions DESIGNABLE false)
Q_PROPERTY(QString state READ state WRITE setState NOTIFY stateChanged)
Q_PROPERTY(qreal width READ width WRITE setWidth NOTIFY widthChanged RESET resetWidth FINAL)
Q_PROPERTY(qreal height READ height WRITE setHeight NOTIFY heightChanged RESET resetHeight FINAL)
Q_PROPERTY(QRectF childrenRect READ childrenRect NOTIFY childrenRectChanged DESIGNABLE false FINAL)
Q_PROPERTY(QmlGraphicsAnchors * anchors READ anchors DESIGNABLE false CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine left READ left CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine right READ right CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine horizontalCenter READ horizontalCenter CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine top READ top CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine bottom READ bottom CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine verticalCenter READ verticalCenter CONSTANT FINAL)
Q_PROPERTY(QmlGraphicsAnchorLine baseline READ baseline CONSTANT FINAL)
Q_PROPERTY(qreal baselineOffset READ baselineOffset WRITE setBaselineOffset NOTIFY baselineOffsetChanged)
Q_PROPERTY(bool clip READ clip WRITE setClip NOTIFY clipChanged) // ### move to QGI/QGO, NOTIFY
Q_PROPERTY(bool focus READ hasFocus WRITE setFocus NOTIFY focusChanged FINAL)
Q_PROPERTY(bool wantsFocus READ wantsFocus NOTIFY wantsFocusChanged)
Q_PROPERTY(QmlList<QGraphicsTransform *>* transform READ transform DESIGNABLE false FINAL)
Q_PROPERTY(TransformOrigin transformOrigin READ transformOrigin WRITE setTransformOrigin NOTIFY transformOriginChanged)
Q_PROPERTY(bool smooth READ smooth WRITE setSmooth NOTIFY smoothChanged)
Q_PROPERTY(QGraphicsEffect *effect READ graphicsEffect WRITE setGraphicsEffect)
Q_ENUMS(TransformOrigin)
Q_CLASSINFO("DefaultProperty", "data")
public:
enum TransformOrigin {
TopLeft, Top, TopRight,
Left, Center, Right,
BottomLeft, Bottom, BottomRight
};
QmlGraphicsItem(QmlGraphicsItem *parent = 0);
virtual ~QmlGraphicsItem();
QmlGraphicsItem *parentItem() const;
void setParentItem(QmlGraphicsItem *parent);
void setParent(QmlGraphicsItem *parent) { setParentItem(parent); }
QmlList<QObject *> *data();
QmlList<QmlGraphicsItem *> *fxChildren();
QmlList<QObject *> *resources();
QmlGraphicsAnchors *anchors();
QRectF childrenRect();
bool clip() const;
void setClip(bool);
QmlList<QmlState *>* states();
QmlList<QmlTransition *>* transitions();
QString state() const;
void setState(const QString &);
qreal baselineOffset() const;
void setBaselineOffset(qreal);
QmlList<QGraphicsTransform *> *transform();
qreal width() const;
void setWidth(qreal);
void resetWidth();
qreal implicitWidth() const;
qreal height() const;
void setHeight(qreal);
void resetHeight();
qreal implicitHeight() const;
TransformOrigin transformOrigin() const;
void setTransformOrigin(TransformOrigin);
bool smooth() const;
void setSmooth(bool);
QRectF boundingRect() const;
virtual void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
bool wantsFocus() const;
bool hasFocus() const;
void setFocus(bool);
bool keepMouseGrab() const;
void setKeepMouseGrab(bool);
QmlGraphicsAnchorLine left() const;
QmlGraphicsAnchorLine right() const;
QmlGraphicsAnchorLine horizontalCenter() const;
QmlGraphicsAnchorLine top() const;
QmlGraphicsAnchorLine bottom() const;
QmlGraphicsAnchorLine verticalCenter() const;
QmlGraphicsAnchorLine baseline() const;
Q_SIGNALS:
void widthChanged();
void heightChanged();
void childrenChanged();
void childrenRectChanged();
void baselineOffsetChanged();
void stateChanged(const QString &);
void focusChanged();
void wantsFocusChanged();
void parentChanged();
void transformOriginChanged(TransformOrigin);
void smoothChanged();
void clipChanged();
protected:
bool isComponentComplete() const;
virtual bool sceneEvent(QEvent *);
virtual bool event(QEvent *);
virtual QVariant itemChange(GraphicsItemChange, const QVariant &);
void setImplicitWidth(qreal);
bool widthValid() const; // ### better name?
void setImplicitHeight(qreal);
bool heightValid() const; // ### better name?
virtual void classBegin();
virtual void componentComplete();
virtual void focusChanged(bool);
virtual void keyPressEvent(QKeyEvent *event);
virtual void keyReleaseEvent(QKeyEvent *event);
virtual void inputMethodEvent(QInputMethodEvent *);
virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const;
virtual void geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry);
protected:
QmlGraphicsItem(QmlGraphicsItemPrivate &dd, QmlGraphicsItem *parent = 0);
private:
friend class QmlStatePrivate;
friend class QmlGraphicsAnchors;
Q_DISABLE_COPY(QmlGraphicsItem)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QmlGraphicsItem)
};
template<typename T>
T qobject_cast(QGraphicsObject *o)
{
QObject *obj = o;
return qobject_cast<T>(obj);
}
// ### move to QGO
template<typename T>
T qobject_cast(QGraphicsItem *item)
{
if (!item) return 0;
QObject *o = item->toGraphicsObject();
return qobject_cast<T>(o);
}
QDebug Q_DECLARATIVE_EXPORT operator<<(QDebug debug, QmlGraphicsItem *item);
QT_END_NAMESPACE
QML_DECLARE_TYPE(QmlGraphicsItem)
QML_DECLARE_TYPE(QGraphicsTransform)
QML_DECLARE_TYPE(QGraphicsScale)
QML_DECLARE_TYPE(QGraphicsRotation)
QML_DECLARE_TYPE(QAction)
QT_END_HEADER
#endif // QMLGRAPHICSITEM_H
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