goldendict-ng/keyboardstate.hh

/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
 * Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */

#ifndef __KEYBOARDSTATE_HH_INCLUDED__
#define __KEYBOARDSTATE_HH_INCLUDED__

/// Since Qt doesn't provide a way to test for keyboard modifiers state
/// when the app isn't in focus, we have to implement this separately for
/// each platform.
class KeyboardState
{
public:

  enum Modifier
  {
    Alt = 1,
    Ctrl = 2,
    Shift = 4,
    Win = 8, // Ironically, Linux only, since it's no use under Windows
    LeftAlt = 16, // Those Left-Right are Windows-only, at least for now
    RightAlt = 32,
    LeftCtrl = 64,
    RightCtrl = 128,
    LeftShift = 256,
    RightShift = 512
  };

  /// Returns true if all Modifiers present within the given mask are pressed
  /// right now.
  bool checkModifiersPressed( int mask );
};

#endif