rosapps/lib/dflat32/menu.c

   1 /* ------------- menu.c ------------- */
   2
   3 #include "dflat32/dflat.h"
   4
   5 static struct PopDown *FindCmd(MBAR *mn, int cmd)
   6 {
   7     MENU *mnu = mn->PullDown;
   8     while (mnu->Title != (void *)-1)    {
   9         struct PopDown *pd = mnu->Selections;
  10         while (pd->SelectionTitle != NULL)    {
  11             if (pd->ActionId == cmd)
  12                 return pd;
  13             pd++;
  14         }
  15         mnu++;
  16     }
  17     return NULL;
  18 }
  19
  20 char *GetCommandText(MBAR *mn, int cmd)
  21 {
  22     struct PopDown *pd = FindCmd(mn, cmd);
  23     if (pd != NULL)
  24         return pd->SelectionTitle;
  25     return NULL;
  26 }
  27
  28 BOOL isCascadedCommand(MBAR *mn, int cmd)
  29 {
  30     struct PopDown *pd = FindCmd(mn, cmd);
  31     if (pd != NULL)
  32         return pd->Attrib & CASCADED;
  33     return FALSE;
  34 }
  35
  36 void ActivateCommand(MBAR *mn, int cmd)
  37 {
  38     struct PopDown *pd = FindCmd(mn, cmd);
  39     if (pd != NULL)
  40         pd->Attrib &= ~INACTIVE;
  41 }
  42
  43 void DeactivateCommand(MBAR *mn, int cmd)
  44 {
  45     struct PopDown *pd = FindCmd(mn, cmd);
  46     if (pd != NULL)
  47         pd->Attrib |= INACTIVE;
  48 }
  49
  50 BOOL isActive(MBAR *mn, int cmd)
  51 {
  52     struct PopDown *pd = FindCmd(mn, cmd);
  53     if (pd != NULL)
  54         return !(pd->Attrib & INACTIVE);
  55     return FALSE;
  56 }
  57
  58 BOOL GetCommandToggle(MBAR *mn, int cmd)
  59 {
  60     struct PopDown *pd = FindCmd(mn, cmd);
  61     if (pd != NULL)
  62         return (pd->Attrib & CHECKED) != 0;
  63     return FALSE;
  64 }
  65
  66 void SetCommandToggle(MBAR *mn, int cmd)
  67 {
  68     struct PopDown *pd = FindCmd(mn, cmd);
  69     if (pd != NULL)
  70         pd->Attrib |= CHECKED;
  71 }
  72
  73 void ClearCommandToggle(MBAR *mn, int cmd)
  74 {
  75     struct PopDown *pd = FindCmd(mn, cmd);
  76     if (pd != NULL)
  77         pd->Attrib &= ~CHECKED;
  78 }
  79
  80 void InvertCommandToggle(MBAR *mn, int cmd)
  81 {
  82     struct PopDown *pd = FindCmd(mn, cmd);
  83     if (pd != NULL)
  84         pd->Attrib ^= CHECKED;
  85 }