/*
 *  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 _THUMBNAILBROWSER_
#define _THUMBNAILBROWSER_

#include <gtkmm.h>
#include <thumbnail.h>
#include <filecatalog.h>

class ThumbBrowserEntry {

public:
// set by arrangeFiles():
  int width;      // minimal width
  int height;     // minimal height
  int exp_width;  // ararnged width
  int startx;     // x coord. in the widget
  int starty;     // y coord. in the widget
// thumbnail preview properties:
  int prew;       // width of the thumbnail
  int preh;       // height of the thumbnail
  guint8* preview;
// file and directory attributes:
  Glib::ustring filename;
  Glib::ustring shortname;
  Glib::ustring dirname;
// the associated thumbnail instance:
  Thumbnail* thumbnail;
  
  ThumbBrowserEntry (Thumbnail* thm, Glib::ustring fname, Glib::ustring sname, Glib::ustring dname, int h) 
    : thumbnail(thm), filename(fname), shortname(sname), dirname(dname), preh(h) {
    preview = thumbnail ? (guint8*) thumbnail->getThumbnailImage (prew, preh) : NULL;
  }
  
  bool operator< (FileDescr& other) {
	return shortname>other.shortname;
  }
};

class ThumbBrowser  : public Gtk::DrawingArea {  
   
  protected:
    int dx, dy, w, h;

    Glib::RefPtr<Gdk::GC> gc_;
    Gdk::Color black;
    Gdk::Color white;
    Gdk::Color blue;
    Gdk::Color bluew;

    std::vector<ThumbBrowserEntry*> fd;
    std::vector<ThumbBrowserEntry*> selected;

    int rowHeight;
    int numOfRows;

    ThumbBrowserListener* tbl;

    void arrangeFiles (int rows);

  public:

    ThumbBrowser ();

    void addEntry (ThumbBrowserEntry* entry);
    void setThumbBrowserListener (ThumbBrowserListener* l) { tbl = l; }

    virtual void on_realize();
    virtual bool on_expose_event(GdkEventExpose* event);
    virtual bool on_button_press_event (GdkEventButton* event);
    virtual bool on_button_release_event (GdkEventButton* event);
    virtual void previewReady (FileDescr* fdn);
  
    void resized (Gtk::Allocation& req);
    void redraw ();
    void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
};

#endif
