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#ifndef SUBCOMPONENTEDITORTOOL_H
#define SUBCOMPONENTEDITORTOOL_H

#include "abstractliveedittool_p.h"

#include <QtCore/QStack>
#include <QtCore/QStringList>

QT_FORWARD_DECLARE_CLASS(QGraphicsObject)
QT_FORWARD_DECLARE_CLASS(QPoint)
QT_FORWARD_DECLARE_CLASS(QTimer)

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class SubcomponentMaskLayerItem;

class SubcomponentEditorTool : public AbstractLiveEditTool
{
    Q_OBJECT

public:
    SubcomponentEditorTool(QDeclarativeViewObserver *view);
    ~SubcomponentEditorTool();

    void mousePressEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void mouseDoubleClickEvent(QMouseEvent *event);

    void hoverMoveEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent *event);

    void keyPressEvent(QKeyEvent *event);
    void keyReleaseEvent(QKeyEvent *keyEvent);
    void itemsAboutToRemoved(const QList<QGraphicsItem*> &itemList);

    void clear();

    bool containsCursor(const QPoint &mousePos) const;
    bool itemIsChildOfQmlSubComponent(QGraphicsItem *item) const;

    bool isChildOfContext(QGraphicsItem *item) const;
    bool isDirectChildOfContext(QGraphicsItem *item) const;
    QGraphicsItem *firstChildOfContext(QGraphicsItem *item) const;

    void setCurrentItem(QGraphicsItem *contextObject);

    void pushContext(QGraphicsObject *contextItem);

    QGraphicsObject *currentRootItem() const;
    QGraphicsObject *setContext(int contextIndex);
    int contextIndex() const;

signals:
    void exitContextRequested();
    void cleared();
    void contextPushed(const QString &contextTitle);
    void contextPopped();
    void contextPathChanged(const QStringList &path);

protected:
    void selectedItemsChanged(const QList<QGraphicsItem*> &itemList);

private slots:
    void animate();
    void contextDestroyed(QObject *context);
    void resizeMask();

private:
    QGraphicsObject *popContext();
    void aboutToPopContext();

private:
    QStack<QGraphicsObject *> m_currentContext;
    QStringList m_path;

    qreal m_animIncrement;
    SubcomponentMaskLayerItem *m_mask;
    QTimer *m_animTimer;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // SUBCOMPONENTEDITORTOOL_H