rtgui/thumbnailbrowser.h

   1 /*
   2  *  This file is part of RawTherapee.
   3  *
   4  *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
   5  *
   6  *  RawTherapee is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  RawTherapee is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef _THUMBNAILBROWSER_
  20 #define _THUMBNAILBROWSER_
  21
  22 #include <gtkmm.h>
  23 #include <thumbnail.h>
  24 #include <filecatalog.h>
  25
  26 class ThumbBrowserEntry {
  27
  28 public:
  29 // set by arrangeFiles():
  30   int width;      // minimal width
  31   int height;     // minimal height
  32   int exp_width;  // ararnged width
  33   int startx;     // x coord. in the widget
  34   int starty;     // y coord. in the widget
  35 // thumbnail preview properties:
  36   int prew;       // width of the thumbnail
  37   int preh;       // height of the thumbnail
  38   guint8* preview;
  39 // file and directory attributes:
  40   Glib::ustring filename;
  41   Glib::ustring shortname;
  42   Glib::ustring dirname;
  43 // the associated thumbnail instance:
  44   Thumbnail* thumbnail;
  45
  46   ThumbBrowserEntry (Thumbnail* thm, Glib::ustring fname, Glib::ustring sname, Glib::ustring dname, int h)
  47     : thumbnail(thm), filename(fname), shortname(sname), dirname(dname), preh(h) {
  48     preview = thumbnail ? (guint8*) thumbnail->getThumbnailImage (prew, preh) : NULL;
  49   }
  50
  51   bool operator< (FileDescr& other) {
  52         return shortname>other.shortname;
  53   }
  54 };
  55
  56 class ThumbBrowser  : public Gtk::DrawingArea {
  57
  58   protected:
  59     int dx, dy, w, h;
  60
  61     Glib::RefPtr<Gdk::GC> gc_;
  62     Gdk::Color black;
  63     Gdk::Color white;
  64     Gdk::Color blue;
  65     Gdk::Color bluew;
  66
  67     std::vector<ThumbBrowserEntry*> fd;
  68     std::vector<ThumbBrowserEntry*> selected;
  69
  70     int rowHeight;
  71     int numOfRows;
  72
  73     ThumbBrowserListener* tbl;
  74
  75     void arrangeFiles (int rows);
  76
  77   public:
  78
  79     ThumbBrowser ();
  80
  81     void addEntry (ThumbBrowserEntry* entry);
  82     void setThumbBrowserListener (ThumbBrowserListener* l) { tbl = l; }
  83
  84     virtual void on_realize();
  85     virtual bool on_expose_event(GdkEventExpose* event);
  86     virtual bool on_button_press_event (GdkEventButton* event);
  87     virtual bool on_button_release_event (GdkEventButton* event);
  88     virtual void previewReady (FileDescr* fdn);
  89
  90     void resized (Gtk::Allocation& req);
  91     void redraw ();
  92     void styleChanged (const Glib::RefPtr<Gtk::Style>& style);
  93 };
  94
  95 #endif