1 files changed, 22 insertions, 3 deletions
diff --git a/src/gui/inc/gui/button.h b/src/gui/inc/gui/button.h
index acfc6c1..b712e29 100644
--- a/src/gui/inc/gui/button.h
+++ b/src/gui/inc/gui/button.h
@@ -15,8 +15,27 @@ extern "C"
 struct gui_button
 {
     struct gui_common common;
-    struct gui_label label;
-    short w;
+
+    enum gui_button_type
+    {
+        GUI_BUTTON_TYPE_1,
+        GUI_BUTTON_TYPE_SPRITE
+    } type;
+
+    union
+    {
+        struct
+        {
+            short w;
+            struct gui_label label;
+        } type1;
+
+        struct
+        {
+            const struct sprite *s;
+        } sprite;
+    } u;
+
     void *arg;
     void (*on_pressed)(void *);
 };
@@ -24,7 +43,7 @@ struct gui_button
 UTIL_STATIC_ASSERT(!offsetof(struct gui_button, common),
     "unexpected offset for struct gui_button");
 
-void gui_button_init(struct gui_button *b);
+void gui_button_init(struct gui_button *b, enum gui_button_type t);
 
 enum
 {