Enhancement: Fixes #498, wizard97 - initial implementation

shared/comgtk/CMakeLists.txt

@@ -70,6 +70,8 @@ add_library(
     public/msgbox.h
     src/profile.c
     public/profile.h
+    src/radio.c
+    public/radio.h
     src/regex.c
     public/regex.h
     public/shorthand.h

shared/comgtk/public/container.h

@@ -13,9 +13,11 @@
  * Destroys all child widgets of a container.
  *
  * @param container The container.
+ * @param destroy   True to destroy, rather than just remove, the children.
  */
 void wintc_container_clear(
-    GtkContainer* container
+    GtkContainer* container,
+    gboolean      destroy
 );
 
 /**

shared/comgtk/public/libapi.h.in

@@ -21,6 +21,7 @@
 #include "@LIB_HEADER_DIR@/menu.h"
 #include "@LIB_HEADER_DIR@/msgbox.h"
 #include "@LIB_HEADER_DIR@/profile.h"
+#include "@LIB_HEADER_DIR@/radio.h"
 #include "@LIB_HEADER_DIR@/regex.h"
 #include "@LIB_HEADER_DIR@/shorthand.h"
 #include "@LIB_HEADER_DIR@/signals.h"

shared/comgtk/public/radio.h

@@ -0,0 +1,19 @@
+#ifndef __COMGTK_RADIO_H__
+#define __COMGTK_RADIO_H__
+
+#include <gtk/gtk.h>
+
+//
+// PUBLIC FUNCTIONS
+//
+
+/**
+ * Retrieve the index of the active selection in a radio button group.
+ *
+ * @param group The radio button group.
+ */
+guint wintc_radio_group_get_selection(
+    GSList* group
+);
+
+#endif

shared/comgtk/src/container.c

@@ -7,17 +7,29 @@
 // PUBLIC FUNCTIONS
 //
 void wintc_container_clear(
-    GtkContainer* container
+    GtkContainer* container,
+    gboolean      destroy
 )
 {
     GList* children = gtk_container_get_children(container);
     GList* iter     = children;
 
-    while (iter)
+    if (destroy)
     {
-        gtk_widget_destroy(GTK_WIDGET(iter->data));
-
-        iter = iter->next;
+        for (; iter; iter = iter->next)
+        {
+            gtk_widget_destroy(GTK_WIDGET(iter->data));
+        }
+    }
+    else
+    {
+        for (; iter; iter = iter->next)
+        {
+            gtk_container_remove(
+                container,
+                GTK_WIDGET(iter->data)
+            );
+        }
     }
 
     g_list_free(children);

shared/comgtk/src/radio.c

@@ -0,0 +1,31 @@
+#include <glib.h>
+#include <gtk/gtk.h>
+
+#include "../public/radio.h"
+
+//
+// PUBLIC FUNCTIONS
+//
+guint wintc_radio_group_get_selection(
+    GSList* group
+)
+{
+    GSList* iter = group;
+
+    for (guint i = 0; iter; iter = iter->next, i++)
+    {
+        if (
+            gtk_toggle_button_get_active(
+                GTK_TOGGLE_BUTTON(iter->data)
+            )
+        )
+        {
+            // From GtkBuilder, it's in reverse
+            //
+            return g_slist_length(group) - i - 1;
+        }
+    }
+
+    g_critical("%s", "comgtk: no radio in group was active");
+    return 0;
+}