fix bug in resetting bevel offset

src/gui/model.cpp

@@ -823,10 +823,10 @@ std::string Model::select(Widgets &widgets, Scene_ID click, Vec3 cam, Vec2 spos,
 
         std::string err;
         if (!begin_bevel(err)) {
-            widgets.set_dragging(false, false);
+            widgets.end_drag();
             return err;
         } else {
-            widgets.set_dragging(true, true);
+            widgets.start_drag(Halfedge_Mesh::center_of(selected_element().value()), cam, spos, dir);
         }
 
     } else if (!widgets.is_dragging() && click >= n_Widget_IDs) {

src/gui/widgets.cpp

@@ -233,11 +233,6 @@ bool Widgets::is_dragging() { return dragging; }
 
 bool Widgets::want_drag() { return start_dragging; }
 
-void Widgets::set_dragging(bool drag, bool plane) {
-    dragging = drag;
-    drag_plane = plane;
-}
-
 void Widgets::start_drag(Vec3 pos, Vec3 cam, Vec2 spos, Vec3 dir) {
 
     start_dragging = false;

src/gui/widgets.h

@@ -121,7 +121,6 @@ public:
 
     bool want_drag();
     bool is_dragging();
-    void set_dragging(bool dragging, bool plane);
 
 private:
     void generate_lines(Vec3 pos);