[FL-1286] Add vertical screen orientation (#472)

applications/gui/view.h

@@ -20,6 +20,11 @@ extern "C" {
  */
 #define VIEW_DESTROY 0xFFFFFFFA
 
+typedef enum {
+    ViewOrientationHorizontal,
+    ViewOrientationVertical,
+} ViewOrientation;
+
 /* View, anonymous type */
 typedef struct View View;
 
@@ -137,6 +142,12 @@ void view_set_update_callback_context(View* view, void* context);
  */
 void view_set_context(View* view, void* context);
 
+/* Set View Orientation
+ * @param view, pointer to View
+ * @param orientation, either vertical or horizontal
+ */
+void view_set_orientation(View* view, ViewOrientation orientation);
+
 /* Allocate view model.
  * @param view, pointer to View
  * @param type, View Model Type
@@ -186,4 +197,4 @@ void view_commit_model(View* view, bool update);
         bool update = ({ bool __fn__ function_body __fn__; })(p); \
         view_commit_model(view, update);                          \
     }
-#endif
+#endif