source/input/keyboard.cpp

   1 #ifdef WIN32
   2 #include <windows.h>
   3 #else
   4 #include <X11/Xlib.h>
   5 #include <X11/Xutil.h>
   6 #endif
   7 #include <msp/graphics/display.h>
   8 #include <msp/graphics/window.h>
   9 #include <msp/graphics/display_priv.h>
  10 #include <msp/graphics/window_priv.h>
  11 #include "keyboard.h"
  12 #include "keys.h"
  13
  14 #define MAPVK_VK_TO_VSC 0
  15
  16 namespace Msp {
  17 namespace Input {
  18
  19 Keyboard::Keyboard(Graphics::Window &w):
  20         window(w)
  21 {
  22         name = "Keyboard";
  23
  24         buttons.resize(N_KEYS_, false);
  25
  26         window.signal_input_event.connect(sigc::mem_fun(this, &Keyboard::input_event));
  27 }
  28
  29 std::string Keyboard::get_button_name(unsigned btn) const
  30 {
  31         if(btn==0)
  32                 return "None";
  33 #ifndef WIN32
  34         const char *str = XKeysymToString(key_to_sys(btn));
  35         if(!str)
  36                 return Device::get_button_name(btn);
  37         return str;
  38 #else
  39         char buf[128];
  40         unsigned scan = MapVirtualKey(key_to_sys(btn), MAPVK_VK_TO_VSC);
  41         if(!GetKeyNameText(scan<<16, buf, sizeof(buf)))
  42                 return Device::get_button_name(btn);
  43         return buf;
  44 #endif
  45 }
  46
  47 void Keyboard::input_event(const Graphics::Window::Event &event)
  48 {
  49 #ifdef WIN32
  50         switch(event.msg)
  51         {
  52         case WM_KEYDOWN:
  53         case WM_KEYUP:
  54                 set_button_state(key_from_sys(event.wparam), event.msg==WM_KEYDOWN, true);
  55                 break;
  56         case WM_CHAR:
  57                 signal_character.emit(event.wparam);
  58                 break;
  59         }
  60 #else
  61         switch(event.xevent.type)
  62         {
  63         case KeyPress:
  64         case KeyRelease:
  65                 {
  66                         KeySym keysym = XLookupKeysym(const_cast<XKeyEvent *>(&event.xevent.xkey), 0);
  67                         if(keysym!=NoSymbol)
  68                                 if(unsigned key = key_from_sys(keysym))
  69                                         set_button_state(key, event.xevent.type==KeyPress, true);
  70                         if(event.xevent.type==KeyPress)
  71                         {
  72                                 char ch;
  73                                 if(XLookupString(const_cast<XKeyEvent *>(&event.xevent.xkey), &ch, 1, 0, 0))
  74                                         // XLookupString always returns Latin-1
  75                                         signal_character.emit(static_cast<unsigned char>(ch));
  76                         }
  77                 }
  78                 break;
  79         }
  80 #endif
  81 }
  82
  83 } // namespace Input
  84 } // namespace Msp