/* ============================================================
 *
 * This file is a part of digiKam project
 * http://www.digikam.org
 *
 * Date        : 2008-11-21
 * Description : Batch Queue Manager items list.
 *
 * Copyright (C) 2008-2015 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */

#ifndef QUEUE_LIST_H
#define QUEUE_LIST_H

// Qt includes

#include <QTreeWidget>
#include <QWidget>
#include <QPixmap>
#include <QIcon>

// Local includes

#include "batchtool.h"
#include "batchtoolutils.h"
#include "imageinfo.h"
#include "imageinfolist.h"
#include "loadingdescription.h"
#include "queuesettingsview.h"

namespace Digikam
{

class QueueListView;

class QueueListViewItem : public QTreeWidgetItem
{

public:

    QueueListViewItem(QueueListView* const view, const ImageInfo& info);
    ~QueueListViewItem();

    bool hasValidThumbnail() const;

    void setInfo(const ImageInfo& info);
    ImageInfo info() const;

    void assignTool(int index, const BatchToolSet& set);
    void unassignTool(int index);

    void setThumb(const QPixmap& pix, bool hasThumb = true);

    void animProgress();

    void setCanceled();
    void setFailed();

    void setDone();
    bool isDone() const;

    void setBusy();
    bool isBusy() const;

    void reset();

    void    setDestFileName(const QString& str);
    QString destFileName() const;
    QString destBaseName() const;
    QString destSuffix()   const;

private:

    void setPixmap(const QPixmap& pix);

private:

    class Private;
    Private* const d;
};

// -------------------------------------------------------------------------

class CollectionImageChangeset;

class QueueListView : public QTreeWidget
{
    Q_OBJECT

public:

    explicit QueueListView(QWidget* const parent);
    ~QueueListView();

    void cancelItems();
    int  itemsCount();
    void removeItemByInfo(const ImageInfo& info);
    void removeItemById(qlonglong id);

    ImageInfoList pendingItemsList();
    int           pendingItemsCount();
    int           pendingTasksCount();

    QueueListViewItem* findItemByUrl(const QUrl& url);
    QueueListViewItem* findItemById(qlonglong id);

    void setSettings(const QueueSettings& settings);
    QueueSettings settings() const;

    void setAssignedTools(const AssignedBatchTools& tools);
    AssignedBatchTools assignedTools() const;

    void setEnableToolTips(bool val);

    void reloadThumbs(const QUrl& url);

    void setItemBusy(qlonglong id);
    QPixmap progressPixmapForIndex(int index) const;

Q_SIGNALS:

    void signalQueueContentsChanged();

public Q_SLOTS:

    void slotClearList();
    void slotRemoveSelectedItems();
    void slotRemoveItemsDone();
    void slotAddItems(const ImageInfoList&);
    void slotAssignedToolsChanged(const AssignedBatchTools&);

private Q_SLOTS:

    void slotCollectionImageChange(const CollectionImageChangeset&);
    void slotThumbnailLoaded(const LoadingDescription&, const QPixmap&);
    void slotContextMenu();
    void slotToolTip();
    void slotProgressTimerDone();

private:

    bool findItemByInfo(const ImageInfo& info);

    void removeItems(int removeType);
    void updateDestFileNames();
    void hideToolTip();
    bool acceptToolTip(const QPoint& pos) const;

    QMimeData*      mimeData(const QList<QTreeWidgetItem*> items) const;
    Qt::DropActions supportedDropActions()                        const;
    void            startDrag(Qt::DropActions supportedActions);

    void dragMoveEvent(QDragMoveEvent*);
    void dragEnterEvent(QDragEnterEvent*);
    void dropEvent(QDropEvent*);
    void mouseMoveEvent(QMouseEvent*);
    void wheelEvent(QWheelEvent*);
    void keyPressEvent(QKeyEvent*);
    void focusOutEvent(QFocusEvent*);
    void leaveEvent(QEvent*);
    void resetQueue();

    void drawRow(QPainter* p, const QStyleOptionViewItem& opt, const QModelIndex& index) const;

private:

    class Private;
    Private* const d;
};

}  // namespace Digikam

#endif // QUEUE_LIST_H
