/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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** This file is part of the Qt Designer of the Qt Toolkit.
**
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** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
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** License if such license has been publicly approved by Trolltech ASA
** (or its successors, if any) and the KDE Free Qt Foundation. 
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** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
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** copyright holder for Qt Designer, grants users of the Qt/Eclipse
** Integration plug-in the right for the Qt/Eclipse Integration to
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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****************************************************************************/

#ifndef OBJECTINSPECTOR_H
#define OBJECTINSPECTOR_H

#include "objectinspector_global.h"
#include "qdesigner_objectinspector_p.h"

#include <QtCore/QPointer>
#include <QtCore/QList>
#include <QtCore/QSet>

class QDesignerFormEditorInterface;
class QDesignerFormWindowInterface;

class QTreeWidgetItem;
class QItemSelection;

namespace qdesigner_internal {
class FormWindowBase;
class TreeWidget;

class QT_OBJECTINSPECTOR_EXPORT ObjectInspector: public QDesignerObjectInspector
{
    Q_OBJECT
public:
    ObjectInspector(QDesignerFormEditorInterface *core, QWidget *parent = 0);
    virtual ~ObjectInspector();

    virtual QDesignerFormEditorInterface *core() const;

    virtual void getSelection(Selection &s) const;
    virtual bool selectObject(QObject *o);
    virtual void clearSelection();

    void setFormWindow(QDesignerFormWindowInterface *formWindow);

public slots:
    virtual void mainContainerChanged();

private slots:
    void slotSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
    void slotPopupContextMenu(const QPoint &pos);
    void slotHeaderDoubleClicked(int column);

protected:
    virtual void dragEnterEvent (QDragEnterEvent * event);
    virtual void dragMoveEvent(QDragMoveEvent * event);
    virtual void dragLeaveEvent(QDragLeaveEvent * event);
    virtual void dropEvent (QDropEvent * event);

private:
    static bool sortEntry(const QObject *a, const QObject *b);
    void showContainersCurrentPage(QWidget *widget);

private:
    void restoreDropHighlighting();
    QWidget *managedWidgetAt(const QPoint &global_mouse_pos);
    void handleDragEnterMoveEvent(QDragMoveEvent * event, bool isDragEnter);

    typedef QSet<const QObject *> PreviousSelection;
    PreviousSelection previousSelection(QDesignerFormWindowInterface *fw, bool formWindowChanged) const;

    typedef QList<QTreeWidgetItem *> ItemList;
    static void findRecursion(QTreeWidgetItem *item, QObject *o, ItemList &matchList);

    ItemList findItemsOfObject(QObject *o) const;

    QDesignerFormEditorInterface *m_core;
    TreeWidget *m_treeWidget;
    QPointer<FormWindowBase> m_formWindow;
    QPointer<QWidget> m_formFakeDropTarget;
};

}  // namespace qdesigner_internal

#endif // OBJECTINSPECTOR_H
