diff -r 1ce14068ef31 -r 294d5515583a ui/common/context.c
--- a/ui/common/context.c	Wed Oct 23 10:37:43 2024 +0200
+++ b/ui/common/context.c	Wed Oct 23 17:40:45 2024 +0200
@@ -523,19 +523,28 @@
     cxListDestroy(groups);
 }
 
+size_t uic_group_array_size(const int *groups) {
+    int i;
+    for(i=0;groups[i] >= 0;i++) { }
+    return i;
+}
+
 void uic_add_group_widget(UiContext *ctx, void *widget, ui_enablefunc enable, CxList *groups) {
+    uic_add_group_widget_i(ctx, widget, enable, cxListAt(groups, 0), cxListSize(groups));
+}
+
+void uic_add_group_widget_i(UiContext *ctx, void *widget, ui_enablefunc enable, const int *groups, size_t numgroups) {
     const CxAllocator *a = ctx->allocator;
     UiGroupWidget gw;
     
     gw.widget = widget;
     gw.enable = enable;
-    gw.numgroups = cxListSize(groups);
-    gw.groups = cxCalloc(a, gw.numgroups, sizeof(int));
+    gw.numgroups = numgroups;
+    gw.groups = cxCalloc(a, numgroups, sizeof(int));
     
     // copy groups
-    int *intgroups = cxListAt(groups, 0);
-    if(intgroups) {
-        memcpy(gw.groups, intgroups, gw.numgroups * sizeof(int));
+    if(groups) {
+        memcpy(gw.groups, groups, gw.numgroups * sizeof(int));
     }
     
     cxListAdd(ctx->group_widgets, &gw);
@@ -554,7 +563,7 @@
 }
 
 void ui_free(UiContext *ctx, void *ptr) {
-    if(ctx) {
+    if(ctx && ptr) {
         cxFree(ctx->allocator, ptr);
     }
 }