xorg-server-1.4/hw/xgl/egl/xeglinput.c

   1 #include "xgl.h"
   2 #include "xegl.h"
   3
   4 KdOsFuncs *kdOsFuncs;
   5 Bool kdEmulateMiddleButton;
   6 Bool kdRawPointerCoordinates;
   7 Bool kdDontZap;
   8 Bool kdDisableZaphod;
   9 int kdScreenPrivateIndex;
  10
  11 static char *
  12 KdParseFindNext (char *cur, char *delim, char *save, char *last)
  13 {
  14     while (*cur && !strchr (delim, *cur))
  15     {
  16         *save++ = *cur++;
  17     }
  18     *save = 0;
  19     *last = *cur;
  20     if (*cur)
  21         cur++;
  22     return cur;
  23 }
  24
  25 /*
  26  * Mouse argument syntax:
  27  *
  28  *  device,protocol,options...
  29  *
  30  *  Options are any of:
  31  *      1-5         n button mouse
  32  *      2button     emulate middle button
  33  *      {NMO}       Reorder buttons
  34  */
  35 char *
  36 KdSaveString (char *str)
  37 {
  38     char    *n = (char *) xalloc (strlen (str) + 1);
  39
  40     if (!n)
  41         return 0;
  42     strcpy (n, str);
  43     return n;
  44 }
  45
  46 /*
  47  * Parse mouse information.  Syntax:
  48  *
  49  *  <device>,<nbutton>,<protocol>{,<option>}...
  50  *
  51  * options: {nmo}   pointer mapping (e.g. {321})
  52  *          2button emulate middle button
  53  *          3button dont emulate middle button
  54  */
  55 void
  56 KdParseMouse (char *arg)
  57 {
  58     char        save[1024];
  59     char        delim;
  60     KdMouseInfo *mi;
  61     int         i;
  62
  63     mi = KdMouseInfoAdd ();
  64     if (!mi)
  65         return;
  66     mi->name = 0;
  67     mi->prot = 0;
  68     mi->emulateMiddleButton = kdEmulateMiddleButton;
  69     mi->transformCoordinates = !kdRawPointerCoordinates;
  70     mi->nbutton = 3;
  71     for (i = 0; i < KD_MAX_BUTTON; i++)
  72         mi->map[i] = i + 1;
  73
  74     if (!arg)
  75         return;
  76     if (strlen (arg) >= sizeof (save))
  77         return;
  78     arg = KdParseFindNext (arg, ",", save, &delim);
  79     if (!save[0])
  80         return;
  81     mi->name = KdSaveString (save);
  82     if (delim != ',')
  83         return;
  84
  85     arg = KdParseFindNext (arg, ",", save, &delim);
  86     if (!save[0])
  87         return;
  88
  89     if ('1' <= save[0] && save[0] <= '0' + KD_MAX_BUTTON && save[1] == '\0')
  90     {
  91         mi->nbutton = save[0] - '0';
  92         if (mi->nbutton > KD_MAX_BUTTON)
  93         {
  94             UseMsg ();
  95             return;
  96         }
  97     }
  98
  99     if (!delim != ',')
 100         return;
 101
 102     arg = KdParseFindNext (arg, ",", save, &delim);
 103
 104     if (save[0])
 105         mi->prot = KdSaveString (save);
 106
 107     while (delim == ',')
 108     {
 109         arg = KdParseFindNext (arg, ",", save, &delim);
 110         if (save[0] == '{')
 111         {
 112             char        *s = save + 1;
 113             i = 0;
 114             while (*s && *s != '}')
 115             {
 116                 if ('1' <= *s && *s <= '0' + mi->nbutton)
 117                     mi->map[i] = *s - '0';
 118                 else
 119                     UseMsg ();
 120                 s++;
 121             }
 122         }
 123         else if (!strcmp (save, "2button"))
 124             mi->emulateMiddleButton = TRUE;
 125         else if (!strcmp (save, "3button"))
 126             mi->emulateMiddleButton = FALSE;
 127         else if (!strcmp (save, "rawcoord"))
 128             mi->transformCoordinates = FALSE;
 129         else if (!strcmp (save, "transform"))
 130             mi->transformCoordinates = TRUE;
 131         else
 132             UseMsg ();
 133     }
 134 }
 135
 136 KdMouseInfo *kdMouseInfo;
 137
 138 KdMouseInfo *
 139 KdMouseInfoAdd (void)
 140 {
 141     KdMouseInfo *mi, **prev;
 142
 143     mi = (KdMouseInfo *) xalloc (sizeof (KdMouseInfo));
 144     if (!mi)
 145         return 0;
 146     bzero (mi, sizeof (KdMouseInfo));
 147     for (prev = &kdMouseInfo; *prev; prev = &(*prev)->next);
 148     *prev = mi;
 149     return mi;
 150 }
 151
 152 void
 153 KdMouseInfoDispose (KdMouseInfo *mi)
 154 {
 155     KdMouseInfo **prev;
 156
 157     for (prev = &kdMouseInfo; *prev; prev = &(*prev)->next)
 158         if (*prev == mi)
 159         {
 160             *prev = mi->next;
 161             if (mi->name)
 162                 xfree (mi->name);
 163             if (mi->prot)
 164                 xfree (mi->prot);
 165             xfree (mi);
 166             break;
 167         }
 168 }