/*
Copyright (C) 2012 Sebastian Herbord. All rights reserved.

This file is part of Mod Organizer.

Mod Organizer 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 3 of the License, or
(at your option) any later version.

Mod Organizer 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.

You should have received a copy of the GNU General Public License
along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef DOWNLOADLISTWIDGET_H
#define DOWNLOADLISTWIDGET_H

#include "downloadmanager.h"
#include <QItemDelegate>
#include <QLabel>
#include <QProgressBar>
#include <QTreeView>
#include <QWidget>

namespace Ui {
class DownloadListWidget;
}

class DownloadListWidget : public QWidget {
    Q_OBJECT

public:
    explicit DownloadListWidget(QWidget* parent = 0);
    ~DownloadListWidget();

private:
    Ui::DownloadListWidget* ui;
};

class DownloadManager;

class DownloadListWidgetDelegate : public QItemDelegate {

    Q_OBJECT

public:
    DownloadListWidgetDelegate(DownloadManager* manager, bool metaDisplay, QTreeView* view, QObject* parent = 0);
    ~DownloadListWidgetDelegate();

    virtual void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const;
    virtual QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const;

    void paintPendingDownload(int downloadIndex) const;
    void paintRegularDownload(int downloadIndex) const;

signals:

    void installDownload(int index);
    void queryInfo(int index);
    void removeDownload(int index, bool deleteFile);
    void restoreDownload(int index);
    void cancelDownload(int index);
    void pauseDownload(int index);
    void resumeDownload(int index);

protected:
    bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option,
                     const QModelIndex& index);

private:
    void drawCache(QPainter* painter, const QStyleOptionViewItem& option, const QPixmap& cache) const;

private slots:

    void issueInstall();
    void issueDelete();
    void issueRemoveFromView();
    void issueRestoreToView();
    void issueCancel();
    void issuePause();
    void issueResume();
    void issueDeleteAll();
    void issueDeleteCompleted();
    void issueRemoveFromViewAll();
    void issueRemoveFromViewCompleted();
    void issueQueryInfo();

    void stateChanged(int row, DownloadManager::DownloadState);
    void resetCache(int);

private:
    DownloadListWidget* m_ItemWidget;
    DownloadManager* m_Manager;

    bool m_MetaDisplay;

    QLabel* m_NameLabel;
    QLabel* m_SizeLabel;
    QProgressBar* m_Progress;
    QLabel* m_InstallLabel;
    int m_ContextRow;

    QTreeView* m_View;

    mutable QMap<int, QPixmap> m_Cache;
};

#endif // DOWNLOADLISTWIDGET_H