view_support.h

// This file is part of Hermes2D.
//
// Hermes2D 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 2 of the License, or
// (at your option) any later version.
//
// Hermes2D 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 Hermes2D.  If not, see <http://www.gnu.org/licenses/>.

// $Id: view.h 1086 2008-10-21 09:05:44Z jakub $

#ifndef __H2D_VIEW_SUPPORT_H
#define __H2D_VIEW_SUPPORT_H
#ifndef NOGLUT
#include <pthread.h>
#endif
namespace Hermes
{
  namespace Hermes2D
  {
    namespace Views
    {
      // you can define NOGLUT to turn off all OpenGL stuff in Hermes2D
#ifndef NOGLUT

      /* types */
      class HERMES_API ViewMonitor
      {
      protected:
        pthread_mutexattr_t mutex_attr;
        pthread_mutex_t mutex;
        pthread_cond_t cond_cross_thread_call;
        pthread_cond_t cond_keypress;
        pthread_cond_t cond_close;
        pthread_cond_t cond_drawing_finished;
      public:
        ViewMonitor();
        ~ViewMonitor();
        inline void enter() { pthread_mutex_lock(&mutex); };
        inline void leave() { pthread_mutex_unlock(&mutex); };
        inline void signal_keypress() { pthread_cond_broadcast(&cond_keypress); };
        inline void wait_keypress() { pthread_cond_wait(&cond_keypress, &mutex); };
        inline void signal_close() { pthread_cond_broadcast(&cond_close); };
        inline void wait_close() { pthread_cond_wait(&cond_close, &mutex); };
        inline void signal_drawing_finished() { pthread_cond_broadcast(&cond_drawing_finished); };
        inline void wait_drawing_fisnihed() { pthread_cond_wait(&cond_drawing_finished, &mutex); };
        inline void signal_cross_thread_call() { pthread_cond_broadcast(&cond_cross_thread_call); };
        inline void wait_cross_thread_call() { pthread_cond_wait(&cond_cross_thread_call, &mutex); };
      };

      /* exported types */
      extern ViewMonitor view_sync;

      /* exported functions */
      class View;

      HERMES_API bool init_glut();
      HERMES_API bool shutdown_glut();
      extern "C"
      {
        int add_view(View* view, int x, int y, int width, int height, const char* title);
      }
      extern void set_view_title(int view_id, const char* title);
      extern void refresh_view(int view_id);
      extern void remove_view(int view_id);
      //extern void force_view_thread_shutdown();
      extern void wait_for_all_views_close(const char* text);
      extern void wait_for_any_key(const char* text);

      extern void on_display_stub(void);
      extern void on_reshape_stub(int width, int height);
      extern void on_mouse_move_stub(int x, int y);
      extern void on_key_down_stub(unsigned char key, int x, int y);
      extern void on_special_key_stub(int key, int x, int y);
      extern void on_entry_stub(int state);
      extern void on_mouse_click_stub(int button, int state, int x, int y);
      extern void on_close_stub();

#endif
    }
  }
}
#endif