rosapps/dflat32/menu.c

   1 /* ------------- menu.c ------------- */
   2
   3 #include "dflat.h"
   4
   5 static struct DfPopDown *FindCmd(DF_MBAR *mn, int cmd)
   6 {
   7     DF_MENU *mnu = mn->PullDown;
   8     while (mnu->Title != (void *)-1)    {
   9         struct DfPopDown *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 *DfGetCommandText(DF_MBAR *mn, int cmd)
  21 {
  22     struct DfPopDown *pd = FindCmd(mn, cmd);
  23     if (pd != NULL)
  24         return pd->SelectionTitle;
  25     return NULL;
  26 }
  27
  28 BOOL DfIsCascadedCommand(DF_MBAR *mn, int cmd)
  29 {
  30     struct DfPopDown *pd = FindCmd(mn, cmd);
  31     if (pd != NULL)
  32         return pd->Attrib & DF_CASCADED;
  33     return FALSE;
  34 }
  35
  36 void DfActivateCommand(DF_MBAR *mn, int cmd)
  37 {
  38     struct DfPopDown *pd = FindCmd(mn, cmd);
  39     if (pd != NULL)
  40         pd->Attrib &= ~DF_INACTIVE;
  41 }
  42
  43 void DfDeactivateCommand(DF_MBAR *mn, int cmd)
  44 {
  45     struct DfPopDown *pd = FindCmd(mn, cmd);
  46     if (pd != NULL)
  47         pd->Attrib |= DF_INACTIVE;
  48 }
  49
  50 BOOL isActive(DF_MBAR *mn, int cmd)
  51 {
  52     struct DfPopDown *pd = FindCmd(mn, cmd);
  53     if (pd != NULL)
  54         return !(pd->Attrib & DF_INACTIVE);
  55     return FALSE;
  56 }
  57
  58 BOOL DfGetCommandToggle(DF_MBAR *mn, int cmd)
  59 {
  60     struct DfPopDown *pd = FindCmd(mn, cmd);
  61     if (pd != NULL)
  62         return (pd->Attrib & DF_CHECKED) != 0;
  63     return FALSE;
  64 }
  65
  66 void DfSetCommandToggle(DF_MBAR *mn, int cmd)
  67 {
  68     struct DfPopDown *pd = FindCmd(mn, cmd);
  69     if (pd != NULL)
  70         pd->Attrib |= DF_CHECKED;
  71 }
  72
  73 void DfClearCommandToggle(DF_MBAR *mn, int cmd)
  74 {
  75     struct DfPopDown *pd = FindCmd(mn, cmd);
  76     if (pd != NULL)
  77         pd->Attrib &= ~DF_CHECKED;
  78 }
  79
  80 void DfInvertCommandToggle(DF_MBAR *mn, int cmd)
  81 {
  82     struct DfPopDown *pd = FindCmd(mn, cmd);
  83     if (pd != NULL)
  84         pd->Attrib ^= DF_CHECKED;
  85 }