/*
 * Peony-Qt's Library
 *
 * Copyright (C) 2019, Tianjin KYLIN Information Technology Co., Ltd.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this library.  If not, see <https://www.gnu.org/licenses/>.
 *
 * Authors: Yue Lan <lanyue@kylinos.cn>
 *
 */

#ifndef ICONVIEW_H
#define ICONVIEW_H

#include "peony-core_global.h"
#include "directory-view-plugin-iface.h"
#include "file-item-model.h"
#include "file-item-proxy-filter-sort-model.h"

#include "directory-view-widget.h"

#include <QListView>
#include <QTimer>

namespace Peony {

namespace DirectoryView {

class IconViewDelegate;

class PEONYCORESHARED_EXPORT IconView : public QListView, public DirectoryViewIface
{
    friend class IconViewDelegate;
    Q_OBJECT
public:

    /*!
     * \brief IconView
     * \param parent
     * \deprecated
     * We should not create a proxy in a view itself. Proxy should be created by tabpage
     * or FMWindow.
     */
    explicit IconView(QWidget *parent = nullptr);
    explicit IconView(DirectoryViewProxyIface *proxy, QWidget *parent = nullptr);
    ~IconView() override;

    const QString viewId() override {return tr("Icon View");}

    void bindModel(FileItemModel *sourceModel, FileItemProxyFilterSortModel *proxyModel) override;
    void setProxy(DirectoryViewProxyIface *proxy) override;

    /*!
     * \brief setUsePeonyQtDirectoryMenu
     * \param use
     * \deprecated
     */
    void setUsePeonyQtDirectoryMenu(bool use) {m_use_peony_qt_directory_menu = use;}

    DirectoryViewProxyIface *getProxy() override;

    //location
    const QString getDirectoryUri() override;

    //selections
    const QStringList getSelections() override;

    //children
    const QStringList getAllFileUris() override;

    QRect visualRect(const QModelIndex &index) const override;

public Q_SLOTS:
    //location
    void open(const QStringList &uris, bool newWindow) override;
    void setDirectoryUri(const QString &uri) override;
    void beginLocationChange() override;
    void stopLocationChange() override;
    void closeView() override;

    //selections
    void setSelections(const QStringList &uris) override;
    void invertSelections() override;
    void scrollToSelection(const QString &uri) override;

    //clipboard
    void setCutFiles(const QStringList &uris) override;

    int getSortType() override;
    void setSortType(int sortType) override;

    int getSortOrder() override;
    void setSortOrder(int sortOrder) override;

    void editUri(const QString &uri) override;
    void editUris(const QStringList uris) override;

    void resort();
    void reportViewDirectoryChanged();
    void clearIndexWidget();

protected:
    /*!
     * \brief changeZoomLevel
     * \deprecated
     */
    void changeZoomLevel();
    void resetEditTriggerTimer();

    void dragEnterEvent(QDragEnterEvent *e) override;
    void dragMoveEvent(QDragMoveEvent *e) override;
    void dropEvent(QDropEvent *e) override;

    void mousePressEvent(QMouseEvent *e) override;
    void mouseReleaseEvent(QMouseEvent *e) override;

    void paintEvent(QPaintEvent *e) override;
    void resizeEvent(QResizeEvent *e) override;

    void wheelEvent(QWheelEvent *e) override;

private:
    QTimer m_edit_trigger_timer;
    QTimer m_repaint_timer;
    QModelIndex m_last_index;

    DirectoryViewProxyIface *m_proxy = nullptr;

    FileItemModel *m_model = nullptr;
    FileItemProxyFilterSortModel *m_sort_filter_proxy_model = nullptr;

    QString m_current_uri = nullptr;

    /*!
     * \brief m_use_peony_qt_directory_menu
     * \deprecated
     */
    bool m_use_peony_qt_directory_menu = false;
};

//IconView2
class IconView2 : public DirectoryViewWidget
{
    Q_OBJECT
    //internal plugin
public:
    explicit IconView2(QWidget *parent = nullptr);
    ~IconView2();

    const QString viewId() {return tr("Icon View");}

    //location
    const QString getDirectoryUri() {return m_view->getDirectoryUri();}

    //selections
    const QStringList getSelections() {return m_view->getSelections();}

    //children
    const QStringList getAllFileUris() {return m_view->getAllFileUris();}

    int getSortType() {return m_view->getSortType();}
    Qt::SortOrder getSortOrder() {return Qt::SortOrder(m_view->getSortOrder());}

public Q_SLOTS:
    void bindModel(FileItemModel *model, FileItemProxyFilterSortModel *proxyModel);

    //location
    //void open(const QStringList &uris, bool newWindow);
    void setDirectoryUri(const QString &uri) {m_view->setDirectoryUri(uri);}
    void beginLocationChange() {m_view->beginLocationChange();}
    void stopLocationChange() {m_view->stopLocationChange();}

    void closeDirectoryView() {m_view->closeView();}

    //selections
    void setSelections(const QStringList &uris) {m_view->setSelections(uris);}
    void invertSelections() {m_view->invertSelections();}
    void scrollToSelection(const QString &uri) {m_view->scrollToSelection(uri);}

    //clipboard
    //cut items should be drawn differently.
    void setCutFiles(const QStringList &uris) {m_view->setCutFiles(uris);}

    void setSortType(int sortType) {m_view->setSortType(sortType);}
    void setSortOrder(int sortOrder) {m_view->setSortOrder(sortOrder);}

    void editUri(const QString &uri) {m_view->editUri(uri);}
    void editUris(const QStringList uris) {m_view->editUris(uris);}

    void repaintView();

private:
    IconView *m_view = nullptr;
    FileItemModel *m_model = nullptr;
    FileItemProxyFilterSortModel *m_proxy_model = nullptr;
};

}

}

#endif // ICONVIEW_H
