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 <msp/strings/format.h>
  12 #include "keyboard.h"
  13 #include "keys.h"
  14
  15 #define MAPVK_VK_TO_VSC 0
  16
  17 namespace Msp {
  18 namespace Input {
  19
  20 Keyboard::Keyboard(Graphics::Window &w):
  21         window(w)
  22 {
  23         name = "Keyboard";
  24
  25         buttons.resize(N_KEYS_, false);
  26
  27         window.signal_input_event.connect(sigc::mem_fun(this, &Keyboard::input_event));
  28 }
  29
  30 std::string Keyboard::get_button_name(unsigned btn) const
  31 {
  32         if(btn==0)
  33                 return "None";
  34 #ifndef WIN32
  35         const char *str = XKeysymToString(key_to_sys(btn));
  36         if(!str)
  37                 return format("Key %d", btn);
  38         return str;
  39 #else
  40         char buf[128];
  41         unsigned scan = MapVirtualKey(key_to_sys(btn), MAPVK_VK_TO_VSC);
  42         if(!GetKeyNameText(scan<<16, buf, sizeof(buf)))
  43                 return format("Key %d", btn);
  44         return buf;
  45 #endif
  46 }
  47
  48 void Keyboard::input_event(const Graphics::Window::Event &event)
  49 {
  50 #ifdef WIN32
  51         switch(event.msg)
  52         {
  53         case WM_KEYDOWN:
  54         case WM_KEYUP:
  55                 set_button_state(key_from_sys(event.wparam), event.msg==WM_KEYDOWN, true);
  56                 break;
  57         case WM_CHAR:
  58                 signal_character.emit(event.wparam);
  59                 break;
  60         }
  61 #else
  62         switch(event.xevent.type)
  63         {
  64         case KeyPress:
  65         case KeyRelease:
  66                 {
  67                         KeySym keysym = XKeycodeToKeysym(window.get_display().get_private().display, event.xevent.xkey.keycode, 0);
  68                         if(keysym!=NoSymbol)
  69                                 set_button_state(key_from_sys(keysym), 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