/*
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

/** \file
 * \ingroup GHOST
 * Declaration of GHOST_SystemSDL class.
 */

#pragma once

#include "../GHOST_Types.h"
#include "GHOST_DisplayManagerSDL.h"
#include "GHOST_Event.h"
#include "GHOST_System.h"
#include "GHOST_TimerManager.h"
#include "GHOST_WindowSDL.h"

extern "C" {
#include "SDL.h"
}

#if !SDL_VERSION_ATLEAST(2, 0, 0)
#  error "SDL 2.0 or newer is needed to build with Ghost"
#endif

class GHOST_WindowSDL;

class GHOST_SystemSDL : public GHOST_System {
 public:
  void addDirtyWindow(GHOST_WindowSDL *bad_wind);

  GHOST_SystemSDL();
  ~GHOST_SystemSDL();

  bool processEvents(bool waitForEvent);

  int toggleConsole(int action)
  {
    return 0;
  }

  GHOST_TSuccess getModifierKeys(GHOST_ModifierKeys &keys) const;

  GHOST_TSuccess getButtons(GHOST_Buttons &buttons) const;

  char *getClipboard(bool selection) const;

  void putClipboard(const char *buffer, bool selection) const;

  uint64_t getMilliSeconds();

  uint8_t getNumDisplays() const;

  GHOST_TSuccess getCursorPosition(int32_t &x, int32_t &y) const;

  GHOST_TSuccess setCursorPosition(int32_t x, int32_t y);

  void getAllDisplayDimensions(uint32_t &width, uint32_t &height) const;

  void getMainDisplayDimensions(uint32_t &width, uint32_t &height) const;

  GHOST_IContext *createOffscreenContext(GHOST_GLSettings glSettings);

  GHOST_TSuccess disposeContext(GHOST_IContext *context);

 private:
  GHOST_TSuccess init();

  GHOST_IWindow *createWindow(const char *title,
                              int32_t left,
                              int32_t top,
                              uint32_t width,
                              uint32_t height,
                              GHOST_TWindowState state,
                              GHOST_TDrawingContextType type,
                              GHOST_GLSettings glSettings,
                              const bool exclusive = false,
                              const bool is_dialog = false,
                              const GHOST_IWindow *parentWindow = NULL);

  /* SDL specific */
  GHOST_WindowSDL *findGhostWindow(SDL_Window *sdl_win);

  bool generateWindowExposeEvents();

  void processEvent(SDL_Event *sdl_event);

  /** The vector of windows that need to be updated. */
  std::vector<GHOST_WindowSDL *> m_dirty_windows;
};