Implement GenericUpdate function

This does the opposite from GenericReadout: it copies the current
parameter values into the dialog.

diff --git a/xoptions.c b/xoptions.c
index 58c9a3b..114215b 100644 (file)
--- a/xoptions.c
+++ b/xoptions.c
@@ -130,7 +130,7 @@ SetWidgetText (Option *opt, char *buf, int n)
     Arg arg;
     XtSetArg(arg, XtNstring, buf);
     XtSetValues(opt->handle, &arg, 1);
-    SetFocus(opt->handle, shells[n], NULL, False);
+    if(n >= 0) SetFocus(opt->handle, shells[n], NULL, False);
 }
 
 void
@@ -826,6 +826,50 @@ Option boardOptions[] = {
 { 0, 0, 0, NULL, (void*) &BoardOptionsOK, "", NULL, EndMark , "" }
 };
 
+void
+GenericUpdate (int selected)
+{
+    int i, j;
+    char buf[MSG_SIZ];
+    float x;
+       for(i=0; ; i++) {
+           if(selected >= 0) { if(i < selected) continue; else if(i > selected) break; }
+           switch(currentOption[i].type) {
+               case TextBox:
+               case FileName:
+               case PathName:
+                   SetWidgetText(&currentOption[i],  *(char**) currentOption[i].target, -1);
+                   break;
+               case Spin:
+                   sprintf(buf, "%d", *(int*) currentOption[i].target);
+                   SetWidgetText(&currentOption[i], buf, -1);
+                   break;
+               case Fractional:
+                   sprintf(buf, "%4.2f", *(float*) currentOption[i].target);
+                   SetWidgetText(&currentOption[i], buf, -1);
+                   break;
+               case CheckBox:
+                   SetWidgetState(&currentOption[i],  *(Boolean*) currentOption[i].target);
+                   break;
+               case ComboBox:
+                   for(j=0; currentOption[i].choice[j]; j++)
+                       if(*(char**)currentOption[i].target && !strcmp(*(char**)currentOption[i].target, currentOption[i].choice[j])) break;
+                   values[i] = currentOption[i].value = j + (currentOption[i].choice[j] == NULL);
+                   // TODO: actually display this
+                   break;
+               case EndMark:
+                   return;
+           default:
+               printf("GenericUpdate: unexpected case in switch.\n");
+               case Button:
+               case SaveButton:
+               case Label:
+               case Break:
+             break;
+           }
+       }
+}
+
 int
 GenericReadout (int selected)
 {