src/frontends/mouse_state.h

   1 // -*- C++ -*-
   2 /**
   3  * \file mouse_state.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * GUII representation of mouse presses and
   8  * mouse button states
   9  *
  10  * \author John Levon
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #ifndef MOUSE_STATE_H
  16 #define MOUSE_STATE_H
  17
  18 namespace lyx {
  19
  20 /// used both for presses and held during motion
  21 namespace mouse_button {
  22
  23         enum state {
  24                 none = 0, //< no buttons held
  25                 button1 = 1, //< mouse button 1 pressed
  26                 button2 = 2,
  27                 button3 = 4,
  28                 button4 = 8,
  29                 button5 = 16
  30         };
  31
  32 inline void operator|=(state & s1, state s2)
  33 {
  34         s1 = static_cast<state>(s1 | s2);
  35 }
  36
  37 } // namespace mouse_button
  38
  39
  40 } // namespace lyx
  41
  42 #endif // MOUSE_STATE_H