00001 /***************************************************************************
00002  *  image_widget.h - Gtkmm widget to draw an image inside a Gtk::Window
00003  *
00004  *  Created:  26.11.2008
00005  *  Copyright 2008 Christof Rath <christof.rath@gmail.com>
00006  *
00007  ****************************************************************************/
00008
00009 /*  This program is free software; you can redistribute it and/or modify
00010  *  it under the terms of the GNU General Public License as published by
00011  *  the Free Software Foundation; either version 2 of the License, or
00012  *  (at your option) any later version.
00013  *
00014  *  This program is distributed in the hope that it will be useful,
00015  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  *  GNU Library General Public License for more details.
00018  *
00019  *  Read the full text in the LICENSE.GPL file in the doc directory.
00020  */
00021
00022 #ifndef __FIREVISION_FVWIDGETS_IMAGE_WIDGET_H_
00023 #define __FIREVISION_FVWIDGETS_IMAGE_WIDGET_H_
00024 
00025 #include <core/threading/thread.h>
00026 #include <fvutils/color/colorspaces.h>
00027 #include <fvutils/color/rgb.h>
00028
00029 #include <gtkmm.h>
00030 #include <libglademm/xml.h>
00031
00032 class Camera;
00033
00034 namespace fawkes {
00035   class Mutex;
00036 }
00037
00038 class ImageWidget : public Gtk::Image
00039 {
00040 private:
00041   class RefThread : public fawkes::Thread
00042   {
00043   public:
00044     RefThread(ImageWidget *widget, unsigned int refresh_delay);
00045     void set_delay(unsigned int refresh_delay);
00046     void save_on_refresh(bool enabled, std::string path = "", Glib::ustring type = "", unsigned int img_num = 0);
00047     void refresh_cam();
00048     void stop();
00049     unsigned int get_img_num();
00050
00051   private:
00052     void loop();
00053     void perform_refresh();
00054
00055     ImageWidget     *__widget;
00056     bool             __stop;
00057     bool             __do_refresh;
00058     unsigned int     __refresh_delay;
00059     unsigned int     __loop_cnt;
00060     Glib::Dispatcher __dispatcher;
00061
00062     bool          __save_imgs;
00063     std::string   __save_path;
00064     Glib::ustring __save_type;
00065     unsigned int  __save_num;
00066   };
00067
00068 public:
00069   ImageWidget(unsigned int width, unsigned int height);
00070   ImageWidget(Camera *cam, unsigned int refresh_delay = 0, unsigned int width = 0, unsigned int height = 0);
00071   ImageWidget(BaseObjectType* cobject, Glib::RefPtr<Gnome::Glade::Xml> refxml);
00072   virtual ~ImageWidget();
00073
00074   void set_camera(Camera *cam, unsigned int refresh_delay = 0);
00075   void enable_camera(bool enable);
00076   void set_size(unsigned int width, unsigned int height);
00077   virtual bool show(colorspace_t colorspace, unsigned char *buffer, unsigned int width = 0, unsigned int height = 0);
00078   void set_refresh_delay(unsigned int refresh_delay);
00079   void refresh_cam();
00080   unsigned int get_width() const;
00081   unsigned int get_height() const;
00082   Glib::RefPtr<Gdk::Pixbuf> get_buffer() const;
00083   void set_rgb(unsigned int x, unsigned int y, unsigned char r, unsigned char g, unsigned char b);
00084   void set_rgb(unsigned int x, unsigned int y, RGB_t rgb);
00085   bool save_image(std::string filename, Glib::ustring type) const throw();
00086   void save_on_refresh_cam(bool enabled, std::string path = "", Glib::ustring type = "", unsigned int img_num = 0);
00087   unsigned int get_image_num();
00088   sigc::signal<void, colorspace_t, unsigned char *, unsigned int, unsigned int> & signal_show();
00089
00090 private:
00091   void set_cam();
00092
00093   unsigned int __width;
00094   unsigned int __height;
00095
00096   Glib::RefPtr<Gdk::Pixbuf> __pixbuf;
00097
00098   RefThread       *__refresh_thread;
00099   Camera          *__cam;
00100   fawkes::Mutex   *__cam_mutex;
00101   bool             __cam_has_buffer;
00102   bool             __cam_has_timestamp;
00103   bool             __cam_enabled;
00104
00105   sigc::signal<void, colorspace_t, unsigned char *, unsigned int, unsigned int> __signal_show;
00106 };
00107
00108 #endif /* __FIREVISION_FVWIDGETS_IMAGE_WIDGET_H_ */