qt-creator/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/objectnodeinstance.h

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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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#ifndef OBJECTNODEINSTANCE_H
#define OBJECTNODEINSTANCE_H

#include "nodeinstanceserver.h"
#include "nodeinstancemetaobject.h"

#include <QPainter>
#include <QSharedPointer>
#include <QWeakPointer>

QT_BEGIN_NAMESPACE
class QGraphicsItem;
class QQmlContext;
class QQmlEngine;
class QQmlProperty;
class QQmlAbstractBinding;
QT_END_NAMESPACE

namespace QmlDesigner {

class NodeInstanceServer;

namespace Internal {

class QmlGraphicsItemNodeInstance;
class GraphicsWidgetNodeInstance;
class GraphicsViewNodeInstance;
class GraphicsSceneNodeInstance;
class ProxyWidgetNodeInstance;
class WidgetNodeInstance;

class ObjectNodeInstance
{
public:
    typedef QSharedPointer<ObjectNodeInstance> Pointer;
    typedef QWeakPointer<ObjectNodeInstance> WeakPointer;

    virtual ~ObjectNodeInstance();
    void destroy();
    //void setModelNode(const ModelNode &node);

    static Pointer create(QObject *objectToBeWrapped);
    static QObject *createPrimitive(const QString &typeName, int majorNumber, int minorNumber, QQmlContext *context);
    static QObject *createCustomParserObject(const QString &nodeSource, const QStringList &imports, QQmlContext *context);
    static QObject *createComponent(const QString &componentPath, QQmlContext *context);
    static QObject *createComponentWrap(const QString &nodeSource, const QStringList &imports, QQmlContext *context);

    void setInstanceId(qint32 id);
    qint32 instanceId() const;

    NodeInstanceServer *nodeInstanceServer() const;
    void setNodeInstanceServer(NodeInstanceServer *server);
    virtual void initializePropertyWatcher(const Pointer &objectNodeInstance);
    virtual void initialize(const Pointer &objectNodeInstance);
    virtual QImage renderImage() const;
    virtual QImage renderPreviewImage(const QSize &previewImageSize) const;

    virtual QObject *parent() const;

    Pointer parentInstance() const;

    virtual void reparent(const ObjectNodeInstance::Pointer &oldParentInstance, const PropertyName &oldParentProperty, const ObjectNodeInstance::Pointer &newParentInstance, const PropertyName &newParentProperty);

    virtual void setId(const QString &id);
    virtual QString id() const;

    virtual bool isTransition() const;
    virtual bool isPositioner() const;
    virtual bool isQuickItem() const;
    virtual bool isQuickWindow() const;
    virtual bool isGraphical() const;
    virtual bool isLayoutable() const;

    virtual bool equalGraphicsItem(QGraphicsItem *item) const;

    virtual QRectF boundingRect() const;

    virtual QPointF position() const;
    virtual QSizeF size() const;
    virtual QTransform transform() const;
    virtual QTransform customTransform() const;
    virtual QTransform sceneTransform() const;
    virtual double opacity() const;

    virtual int penWidth() const;

    virtual bool hasAnchor(const PropertyName &name) const;
    virtual QPair<PropertyName, ServerNodeInstance> anchor(const PropertyName &name) const;
    virtual bool isAnchoredBySibling() const;
    virtual bool isAnchoredByChildren() const;

    virtual double rotation() const;
    virtual double scale() const;
    virtual QList<QGraphicsTransform *> transformations() const;
    virtual QPointF transformOriginPoint() const;
    virtual double zValue() const;

    virtual void setPropertyVariant(const PropertyName &name, const QVariant &value);
    virtual void setPropertyBinding(const PropertyName &name, const QString &expression);
    virtual QVariant property(const PropertyName &name) const;
    virtual void resetProperty(const PropertyName &name);
    virtual void refreshProperty(const PropertyName &name);
    virtual QString instanceType(const PropertyName &name) const;
    PropertyNameList propertyNames() const;

    virtual QList<ServerNodeInstance> childItems() const;

    void createDynamicProperty(const QString &PropertyName, const QString &typeName);
    void setDeleteHeldInstance(bool deleteInstance);
    bool deleteHeldInstance() const;

    virtual void updateAnchors();
    virtual void paintUpdate();

    virtual void activateState();
    virtual void deactivateState();

    void populateResetHashes();
    bool hasValidResetBinding(const PropertyName &propertyName) const;
    QQmlAbstractBinding *resetBinding(const PropertyName &propertyName) const;
    QVariant resetValue(const PropertyName &propertyName) const;
    void setResetValue(const PropertyName &propertyName, const QVariant &value);

    QObject *object() const;

    virtual bool hasContent() const;
    virtual bool isResizable() const;
    virtual bool isMovable() const;
    bool isInLayoutable() const;
    void setInLayoutable(bool isInLayoutable);
    virtual void refreshLayoutable();

    bool hasBindingForProperty(const PropertyName &name, bool *hasChanged = 0) const;

    QQmlContext *context() const;
    QQmlEngine *engine() const;

    virtual bool updateStateVariant(const ObjectNodeInstance::Pointer &target, const PropertyName &propertyName, const QVariant &value);
    virtual bool updateStateBinding(const ObjectNodeInstance::Pointer &target, const PropertyName &propertyName, const QString &expression);
    virtual bool resetStateProperty(const ObjectNodeInstance::Pointer &target, const PropertyName &propertyName, const QVariant &resetValue);


    bool isValid() const;
    bool isRootNodeInstance() const;

    virtual void doComponentComplete();

    virtual QList<ServerNodeInstance> stateInstances() const;

    virtual void setNodeSource(const QString &source);

    static QVariant fixResourcePaths(const QVariant &value);

    virtual void updateDirtyNodeRecursive();

protected:
    explicit ObjectNodeInstance(QObject *object);
    void doResetProperty(const PropertyName &propertyName);
    void removeFromOldProperty(QObject *object, QObject *oldParent, const PropertyName &oldParentProperty);
    void addToNewProperty(QObject *object, QObject *newParent, const PropertyName &newParentProperty);
    void deleteObjectsInList(const QQmlProperty &metaProperty);
    QVariant convertSpecialCharacter(const QVariant& value) const;

private:
    QHash<PropertyName, QVariant> m_resetValueHash;
    QHash<PropertyName, QWeakPointer<QQmlAbstractBinding> > m_resetBindingHash;
    QHash<PropertyName, ServerNodeInstance> m_modelAbstractPropertyHash;
    mutable QHash<PropertyName, bool> m_hasBindingHash;
    QString m_id;

    QPointer<NodeInstanceServer> m_nodeInstanceServer;
    PropertyName m_parentProperty;

    QPointer<QObject> m_object;
    NodeInstanceMetaObject *m_metaObject;
    qint32 m_instanceId;
    bool m_deleteHeldInstance;
    bool m_isInLayoutable;
};

} // namespace Internal
} // namespace QmlDesigner

#endif // OBJECTNODEINSTANCE_H