rtgui/previewwindow.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 _PREVIEWWINDOW_
  20 #define _PREVIEWWINDOW_
  21
  22 #include <gtkmm.h>
  23 #include <previewhandler.h>
  24 #include <cropwindow.h>
  25
  26 class PreviewWindow : public Gtk::DrawingArea, public PreviewListener, public CropWindowListener {
  27
  28     private:
  29         Glib::RefPtr<Gdk::Pixmap> backBuffer;
  30         int oldwidth, oldheight;
  31         PreviewHandler* previewHandler;
  32         sigc::connection rconn;
  33         CropWindow* mainCropWin;
  34         ImageArea* imageArea;
  35         int imgX, imgY, imgW, imgH;
  36         double zoom;
  37                 Gdk::Cursor* cCropMoving;
  38                 Gdk::Cursor* cNormal;
  39                 int press_x, press_y;
  40                 bool isMoving;
  41
  42         void updatePreviewImage     ();
  43         void getObservedFrameArea   (int& x, int& y, int& w, int& h);
  44
  45     public:
  46         PreviewWindow ();
  47                 ~PreviewWindow ();
  48
  49         void setPreviewHandler  (PreviewHandler* ph);
  50         void setImageArea       (ImageArea* ia);
  51
  52                 void on_realize                         ();
  53         void on_resized                 (Gtk::Allocation& req);
  54         bool on_expose_event            (GdkEventExpose* event);
  55                 bool on_motion_notify_event (GdkEventMotion* event);
  56                 bool on_button_press_event  (GdkEventButton* event);
  57                 bool on_button_release_event(GdkEventButton* event);
  58
  59         // PreviewListener interface
  60         void previewImageChanged ();
  61
  62         // CropWindowListener interface
  63         void cropPositionChanged   (CropWindow* w);
  64         void cropWindowSizeChanged (CropWindow* w);
  65         void cropZoomChanged       (CropWindow* w);
  66 };
  67
  68 #endif