src/Fl_get_key_win32.cxx

   1 //
   2 // "$Id: Fl_get_key_win32.cxx 7913 2010-11-29 18:18:27Z greg.ercolano $"
   3 //
   4 // WIN32 keyboard state routines for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 // Return the current state of a key.  Keys are named by fltk symbols,
  29 // which are actually X keysyms.  So this has to translate to MSWindows
  30 // VK_x symbols.
  31
  32 #include <FL/Fl.H>
  33 #include <FL/x.H>
  34
  35 // convert an Fltk (X) keysym to a MSWindows VK symbol:
  36 // See also the inverse converter in Fl_win32.cxx
  37 // This table is in numeric order by Fltk symbol order for binary search:
  38
  39 static const struct {unsigned short vk, fltk;} vktab[] = {
  40   {VK_SPACE,    ' '},
  41   {'1',         '!'},
  42   {0xde,        '\"'},
  43   {'3',         '#'},
  44   {'4',         '$'},
  45   {'5',         '%'},
  46   {'7',         '&'},
  47   {0xde,        '\''},
  48   {'9',         '('},
  49   {'0',         ')'},
  50   {'8',         '*'},
  51   {0xbb,        '+'},
  52   {0xbc,        ','},
  53   {0xbd,        '-'},
  54   {0xbe,        '.'},
  55   {0xbf,        '/'},
  56   {0xba,        ':'},
  57   {0xba,        ';'},
  58   {0xbc,        '<'},
  59   {0xbb,        '='},
  60   {0xbe,        '>'},
  61   {0xbf,        '?'},
  62   {'2',         '@'},
  63   {0xdb,        '['},
  64   {0xdc,        '\\'},
  65   {0xdd,        ']'},
  66   {'6',         '^'},
  67   {0xbd,        '_'},
  68   {0xc0,        '`'},
  69   {0xdb,        '{'},
  70   {0xdc,        '|'},
  71   {0xdd,        '}'},
  72   {0xc0,        '~'},
  73   {VK_BACK,     FL_BackSpace},
  74   {VK_TAB,      FL_Tab},
  75   {VK_CLEAR,    0xff0b/*XK_Clear*/},
  76   {VK_RETURN,   FL_Enter},
  77   {VK_PAUSE,    FL_Pause},
  78   {VK_SCROLL,   FL_Scroll_Lock},
  79   {VK_ESCAPE,   FL_Escape},
  80   {VK_HOME,     FL_Home},
  81   {VK_LEFT,     FL_Left},
  82   {VK_UP,       FL_Up},
  83   {VK_RIGHT,    FL_Right},
  84   {VK_DOWN,     FL_Down},
  85   {VK_PRIOR,    FL_Page_Up},
  86   {VK_NEXT,     FL_Page_Down},
  87   {VK_END,      FL_End},
  88   {VK_SNAPSHOT, FL_Print},
  89   {VK_INSERT,   FL_Insert},
  90   {VK_APPS,     FL_Menu},
  91   {VK_NUMLOCK,  FL_Num_Lock},
  92 //{VK_???,      FL_KP_Enter},
  93   {VK_MULTIPLY, FL_KP+'*'},
  94   {VK_ADD,      FL_KP+'+'},
  95   {VK_SUBTRACT, FL_KP+'-'},
  96   {VK_DECIMAL,  FL_KP+'.'},
  97   {VK_DIVIDE,   FL_KP+'/'},
  98   {VK_LSHIFT,   FL_Shift_L},
  99   {VK_RSHIFT,   FL_Shift_R},
 100   {VK_LCONTROL, FL_Control_L},
 101   {VK_RCONTROL, FL_Control_R},
 102   {VK_CAPITAL,  FL_Caps_Lock},
 103   {VK_LWIN,     FL_Meta_L},
 104   {VK_RWIN,     FL_Meta_R},
 105   {VK_LMENU,    FL_Alt_L},
 106   {VK_RMENU,    FL_Alt_R},
 107   {VK_DELETE,   FL_Delete}
 108 };
 109
 110 static int fltk2ms(int fltk) {
 111   if (fltk >= '0' && fltk <= '9') return fltk;
 112   if (fltk >= 'A' && fltk <= 'Z') return fltk;
 113   if (fltk >= 'a' && fltk <= 'z') return fltk-('a'-'A');
 114   if (fltk > FL_F && fltk <= FL_F+16) return fltk-(FL_F-(VK_F1-1));
 115   if (fltk >= FL_KP+'0' && fltk<=FL_KP+'9') return fltk-(FL_KP+'0'-VK_NUMPAD0);
 116   int a = 0;
 117   int b = sizeof(vktab)/sizeof(*vktab);
 118   while (a < b) {
 119     int c = (a+b)/2;
 120     if (vktab[c].fltk == fltk) return vktab[c].vk;
 121     if (vktab[c].fltk < fltk) a = c+1; else b = c;
 122   }
 123   return 0;
 124 }
 125
 126 int Fl::event_key(int k) {
 127   return GetKeyState(fltk2ms(k))&~1;
 128 }
 129
 130 int Fl::get_key(int k) {
 131   uchar foo[256];
 132   GetKeyboardState(foo);
 133   return foo[fltk2ms(k)]&~1;
 134 }
 135
 136 //
 137 // End of "$Id: Fl_get_key_win32.cxx 7913 2010-11-29 18:18:27Z greg.ercolano $".
 138 //