# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1766270221 -3600
# Node ID c609ca165ae7e58c74972a4bc12eb3f25189e830
# Parent  ac1af881d8d43b298d669bbe4d978683de5fbe19
implement functions for accessing values by var name

diff -r ac1af881d8d4 -r c609ca165ae7 ui/common/context.c
--- a/ui/common/context.c	Fri Dec 19 23:18:48 2025 +0100
+++ b/ui/common/context.c	Sat Dec 20 23:37:01 2025 +0100
@@ -695,6 +695,91 @@
     cxMempoolSetDestructor(mem, (cx_destructor_func)destr);
 }
 
+void ui_var_set_int(UiContext *ctx, const char *name, int64_t value) {
+    UiInteger *i = ui_get_int_var(ctx, name);
+    if(i) {
+        ui_set(i, value);
+    }
+}
+
+int64_t ui_var_get_int(UiContext *ctx, const char *name) {
+    UiInteger *i = ui_get_int_var(ctx, name);
+    if(i) {
+        return ui_get(i);
+    }
+    return 0;
+}
+
+void ui_var_set_double(UiContext *ctx, const char *name, double value) {
+    UiDouble *d = ui_get_double_var(ctx, name);
+    if(d) {
+        ui_set(d, value);
+    }
+}
+
+double ui_var_get_double(UiContext *ctx, const char *name) {
+    UiDouble *d = ui_get_double_var(ctx, name);
+    if(d) {
+        return ui_get(d);
+    }
+    return 0;
+}
+
+void ui_var_set_string(UiContext *ctx, const char *name, char *value) {
+    UiString *s = ui_get_string_var(ctx, name);
+    if(s) {
+        ui_set(s, value);
+    }
+}
+
+char* ui_var_get_string(UiContext *ctx, const char *name) {
+    UiString *s = ui_get_string_var(ctx, name);
+    if(s) {
+        return ui_get(s);
+    }
+    return NULL;
+}
+
+UIEXPORT void ui_var_add_observer(UiContext *ctx, const char *varname, ui_callback f, void *data) {
+    UiVar *var = uic_get_var(ctx, varname);
+    if(!var) {
+        return;
+    }
+    
+    switch(var->type) {
+        case UI_VAR_INTEGER: {
+            UiInteger *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+        case UI_VAR_DOUBLE: {
+            UiDouble *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+        case UI_VAR_RANGE: {
+            UiRange *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+        case UI_VAR_STRING: {
+            UiString *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+        case UI_VAR_TEXT: {
+            UiText *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+        case UI_VAR_LIST: {
+            UiList *v = var->value;
+            v->observers = ui_add_observer(v->observers, f, data);
+            break;
+        }
+    }
+}
+
 UiInteger* ui_get_int_var(UiContext *ctx, const char *name) {
     UiVar *var = uic_get_var_t(ctx, name, UI_VAR_INTEGER);
     return var ? var->value : NULL;
diff -r ac1af881d8d4 -r c609ca165ae7 ui/ui/toolkit.h
--- a/ui/ui/toolkit.h	Fri Dec 19 23:18:48 2025 +0100
+++ b/ui/ui/toolkit.h	Sat Dec 20 23:37:01 2025 +0100
@@ -644,6 +644,8 @@
 UIEXPORT UiRange* ui_get_range_var(UiContext *ctx, const char *name);
 UIEXPORT UiGeneric* ui_get_generic_var(UiContext *ctx, const char *name);
 
+UIEXPORT void ui_var_add_observer(UiContext *ctx, const char *varname, ui_callback f, void *data);
+
 UIEXPORT UiObserver* ui_observer_new(ui_callback f, void *data);
 UIEXPORT UiObserver* ui_obsvlist_add(UiObserver *list, UiObserver *observer);
 UIEXPORT UiObserver* ui_add_observer(UiObserver *list, ui_callback f, void *data);