widget/windows/nsToolkit.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsToolkit_h__
   7 #define nsToolkit_h__
   8
   9 #include "nsdefs.h"
  10
  11 #include "nsCOMPtr.h"
  12 #include <windows.h>
  13
  14 // Avoid including windowsx.h to prevent macro pollution
  15 #ifndef GET_X_LPARAM
  16 #  define GET_X_LPARAM(pt) (short(LOWORD(pt)))
  17 #endif
  18 #ifndef GET_Y_LPARAM
  19 #  define GET_Y_LPARAM(pt) (short(HIWORD(pt)))
  20 #endif
  21
  22 /**
  23  * Wrapper around the thread running the message pump.
  24  * The toolkit abstraction is necessary because the message pump must
  25  * execute within the same thread that created the widget under Win32.
  26  */
  27
  28 class nsToolkit {
  29  public:
  30   nsToolkit();
  31
  32  private:
  33   ~nsToolkit();
  34
  35  public:
  36   static nsToolkit* GetToolkit();
  37
  38   static HINSTANCE mDllInstance;
  39
  40   static void Startup(HMODULE hModule);
  41   static void Shutdown();
  42
  43  protected:
  44   static nsToolkit* gToolkit;
  45 };
  46
  47 #endif  // TOOLKIT_H