/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  RawTherapee 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.
 * 
 *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _FILECATALOG_
#define _FILECATALOG_

#ifdef _WIN32
#include <windirmonitor.h>
#endif
#include <dirselectionlistener.h>
#include <filebrowser.h>
#include <procthread.h>
#include <exiffiltersettings.h>
#include <giomm.h>
#include <fileselectionlistener.h>
#include <set>
#include <fileselectionchangelistener.h>
#include <coarsepanel.h>
#include <toolbar.h>
#include <filterpanel.h>
#include <previewloader.h>

class DirEntry {

    public:
        Glib::ustring fullName;

        DirEntry (const Glib::ustring& n) : fullName (n) {}

    bool operator< (DirEntry& other) {
        return fullName.casefold() < other.fullName.casefold();
    }
};

/*
 * Class:
 *   - handling the list of file (add/remove them)
 *   - handling the thumbnail toolbar,
 *   - monitoring the directory (for any change)
 */
class FileCatalog : public Gtk::VBox,
                    public DirSelectionListener, 
                    public PreviewLoaderListener, 
                    public FilterPanelListener,
                    public FileBrowserListener
#ifdef _WIN32
                  , public WinDirChangeListener
#endif
 {

    private:
        Gtk::HBox* hBox;
        Glib::ustring selectedDirectory;
        int selectedDirectoryId;
        bool enabled;
        bool inTabMode;  // Tab mode has e.g. different progress bar handling

        FileSelectionListener* listener;
        FileSelectionChangeListener* fslistener;
        ImageAreaToolListener* iatlistener;

        Gtk::HBox* buttonBar;
        Gtk::HBox* buttonBar2;
        Gtk::ToggleButton* bDir;
        Gtk::ToggleButton* bUnRanked;
        Gtk::ToggleButton* bRank[5];
        Gtk::ToggleButton* bTrash;
        Gtk::ToggleButton* categoryButtons[8];
        Gtk::ToggleButton* exifInfo;
        sigc::connection bCateg[8];
        Gtk::Image* iranked[5], *igranked[5];
        Gtk::Image *iTrashEmpty, *iTrashFull;
        
        double hScrollPos[8];
        double vScrollPos[8];
        int lastScrollPos;

        Gtk::VBox* trashButtonBox;
        
        Gtk::Button* zoomInButton;
        Gtk::Button* zoomOutButton;

        ExifFilterSettings dirEFS;
        ExifFilterSettings currentEFS;
        bool hasValidCurrentEFS;  

        FilterPanel* filterPanel;

        Gtk::ProgressBar* progressBar;
        int previewsToLoad;
        int previewsLoaded;


        std::vector<Glib::ustring> fileNameList;
        std::set<Glib::ustring> editedFiles;
        guint modifierKey; // any modifiers held when rank button was pressed

#ifndef _WIN32
        Glib::RefPtr<Gio::FileMonitor> dirMonitor;
#else
        WinDirMonitor* wdMonitor;
#endif

        void addAndOpenFile (const Glib::ustring& fname);
        void checkAndAddFile (Glib::RefPtr<Gio::File> info);
        std::vector<Glib::ustring> getFileList ();
        BrowserFilter getFilter ();
        void trashChanged ();

    public:
            // thumbnail browsers
            FileBrowser* fileBrowser;

            CoarsePanel* coarsePanel;
            ToolBar* toolBar;
#ifdef _WIN32
            int checkCounter;
#endif


                     FileCatalog (CoarsePanel* cp, ToolBar* tb);
                     ~FileCatalog();
                void dirSelected (const Glib::ustring& dirname, const Glib::ustring& openfile="");
                void closeDir    ();
                void refreshEditedState (const std::set<Glib::ustring>& efiles);

                // previewloaderlistener interface
                void _previewReady (int dir_id, FileBrowserEntry* fdn);
                void previewReady (int dir_id, FileBrowserEntry* fdn);
                void previewsFinished (int dir_id);
                void _previewsFinished ();
                void _refreshProgressBar ();

                // filterpanel interface
                void exifFilterChanged ();
                void deselectAll();			// deselect all images

       Glib::ustring lastSelectedDir () { return selectedDirectory; }
                void setEnabled (bool e);   // if not enabled, it does not open image
                void enableTabMode(bool enable);  // sets progress bar

                void redrawAll ();
                void refreshAll ();
                void refreshHeight ();

                void openRequested          (std::vector<Thumbnail*> tbe);
                void deleteRequested        (std::vector<FileBrowserEntry*> tbe);
                void developRequested       (std::vector<FileBrowserEntry*> tbe);
                void renameRequested        (std::vector<FileBrowserEntry*> tbe);
                void selectionChanged       (std::vector<Thumbnail*> tbe);
                void emptyTrash ();
                bool trashIsEmpty ();

                void setFileSelectionListener (FileSelectionListener* l) { listener = l; }
                void setFileSelectionChangeListener (FileSelectionChangeListener* l) { fslistener = l; }
                void setImageAreaToolListener (ImageAreaToolListener* l) { iatlistener = l; }
                void setFilterPanel (FilterPanel* fpanel);
                void exifInfoButtonToggled();
                void categoryButtonToggled (Gtk::ToggleButton* b);
                bool capture_event(GdkEventButton* event);
                void filterChanged ();
                void runFilterDialog ();

                void on_realize();
                int  reparseDirectory ();
                void _openImage (std::vector<Thumbnail*> tmb);

                void zoomIn ();
                void zoomOut ();

                void openNextImage () { fileBrowser->openNextImage(); }
                void openPrevImage () { fileBrowser->openPrevImage(); }               

                bool handleShortcutKey (GdkEventKey* event);

#ifndef _WIN32
                void on_dir_changed (const Glib::RefPtr<Gio::File>& file, const Glib::RefPtr<Gio::File>& other_file, Gio::FileMonitorEvent event_type, bool internal);
#else
                void winDirChanged ();
#endif

};

#endif
