Undo/redo in FDM supports gizmo

src/libslic3r/Model.hpp

@@ -411,6 +411,11 @@ public:
         return timestamp == other.get_timestamp();
     }
 
+    template<class Archive> void serialize(Archive &ar)
+    {
+        ar(m_data);
+    }
+
 private:
     std::map<int, FacetSupportType> m_data;
 
@@ -613,7 +618,8 @@ private:
 	}
 	template<class Archive> void load(Archive &ar) {
 		bool has_convex_hull;
-        ar(name, source, m_mesh, m_type, m_material_id, m_transformation, m_is_splittable, has_convex_hull);
+        ar(name, source, m_mesh, m_type, m_material_id, m_transformation,
+           m_is_splittable, has_convex_hull, m_supported_facets);
         cereal::load_by_value(ar, config);
 		assert(m_mesh);
 		if (has_convex_hull) {
@@ -626,7 +632,8 @@ private:
 	}
 	template<class Archive> void save(Archive &ar) const {
 		bool has_convex_hull = m_convex_hull.get() != nullptr;
-        ar(name, source, m_mesh, m_type, m_material_id, m_transformation, m_is_splittable, has_convex_hull);
+        ar(name, source, m_mesh, m_type, m_material_id, m_transformation,
+           m_is_splittable, has_convex_hull, m_supported_facets);
         cereal::save_by_value(ar, config);
 		if (has_convex_hull)
 			cereal::save_optional(ar, m_convex_hull);

src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.cpp

@@ -58,10 +58,10 @@ void GLGizmoFdmSupports::set_fdm_support_data(ModelObject* model_object, const S
         return;
 
     if (mo && selection.is_from_single_instance()
-     && (mo != m_old_mo || mo->volumes.size() != m_old_volumes_size))
+     && (mo->id() != m_old_mo_id || mo->volumes.size() != m_old_volumes_size))
     {
-        update_mesh();
-        m_old_mo = mo;
+        update_from_model_object();
+        m_old_mo_id = mo->id();
         m_old_volumes_size = mo->volumes.size();
     }
 }
@@ -177,14 +177,21 @@ void GLGizmoFdmSupports::render_cursor_circle() const
 }
 
 
-void GLGizmoFdmSupports::on_render_for_picking() const
+void GLGizmoFdmSupports::update_model_object() const
 {
-
+    ModelObject* mo = m_c->selection_info()->model_object();
+    int idx = -1;
+    for (ModelVolume* mv : mo->volumes) {
+        ++idx;
+        if (! mv->is_model_part())
+            continue;
+        for (int i=0; i<int(m_selected_facets[idx].size()); ++i)
+            mv->m_supported_facets.set_facet(i, m_selected_facets[idx][i]);
+    }
 }
 
 
-
-void GLGizmoFdmSupports::update_mesh()
+void GLGizmoFdmSupports::update_from_model_object()
 {
     wxBusyCursor wait;
 
@@ -193,7 +200,6 @@ void GLGizmoFdmSupports::update_mesh()
     for (const ModelVolume* mv : mo->volumes)
         if (mv->is_model_part())
             ++num_of_volumes;
-
     m_selected_facets.resize(num_of_volumes);
     m_neighbors.resize(num_of_volumes);
     m_ivas.clear();
@@ -469,19 +475,16 @@ bool GLGizmoFdmSupports::gizmo_event(SLAGizmoEventType action, const Vec2d& mous
 
     if ((action == SLAGizmoEventType::LeftUp || action == SLAGizmoEventType::RightUp)
       && m_button_down != Button::None) {
+        // Take snapshot and update ModelVolume data.
+        wxString action_name = shift_down
+                ? _L("Remove selection")
+                : (m_button_down == Button::Left
+                   ? _L("Add supports")
+                   : _L("Block supports"));
+        Plater::TakeSnapshot(wxGetApp().plater(), action_name);
+        update_model_object();
+
         m_button_down = Button::None;
-
-        // Synchronize gizmo with ModelVolume data.
-        ModelObject* mo = m_c->selection_info()->model_object();
-        int idx = -1;
-        for (ModelVolume* mv : mo->volumes) {
-            ++idx;
-            if (! mv->is_model_part())
-                continue;
-            for (int i=0; i<int(m_selected_facets[idx].size()); ++i)
-                mv->m_supported_facets.set_facet(i, m_selected_facets[idx][i]);
-        }
-
         return true;
     }
 
@@ -666,12 +669,22 @@ void GLGizmoFdmSupports::on_set_state()
         return;
 
     if (m_state == On && m_old_state != On) { // the gizmo was just turned on
+        {
             Plater::TakeSnapshot snapshot(wxGetApp().plater(), _(L("FDM gizmo turned on")));
         }
+        if (! m_parent.get_gizmos_manager().is_serializing()) {
+            wxGetApp().CallAfter([]() {
+                wxGetApp().plater()->enter_gizmos_stack();
+            });
+        }
+    }
     if (m_state == Off && m_old_state != Off) { // the gizmo was just turned Off
         // we are actually shutting down
+        wxGetApp().plater()->leave_gizmos_stack();
+        {
             Plater::TakeSnapshot snapshot(wxGetApp().plater(), _(L("FDM gizmo turned off")));
-        m_old_mo = nullptr;
+        }
+        m_old_mo_id = -1;
         m_ivas.clear();
         m_neighbors.clear();
         m_selected_facets.clear();
@@ -696,7 +709,7 @@ void GLGizmoFdmSupports::on_stop_dragging()
 
 void GLGizmoFdmSupports::on_load(cereal::BinaryInputArchive& ar)
 {
-
+    update_from_model_object();
 }
 
 

src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.hpp

@@ -19,7 +19,7 @@ enum class SLAGizmoEventType : unsigned char;
 class GLGizmoFdmSupports : public GLGizmoBase
 {
 private:
-    const ModelObject* m_old_mo = nullptr;
+    ObjectID m_old_mo_id;
     size_t m_old_volumes_size = 0;
 
     GLUquadricObj* m_quadric;
@@ -53,11 +53,13 @@ public:
 private:
     bool on_init() override;
     void on_render() const override;
-    void on_render_for_picking() const override;
+    void on_render_for_picking() const override {}
 
     void render_triangles(const Selection& selection) const;
     void render_cursor_circle() const;
-    void update_mesh();
+
+    void update_model_object() const;
+    void update_from_model_object();
 
     bool is_mesh_point_clipped(const Vec3d& point) const;
 

src/slic3r/GUI/Gizmos/GLGizmosManager.cpp

@@ -371,15 +371,6 @@ void GLGizmosManager::set_sla_support_data(ModelObject* model_object)
      || wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() != ptSLA)
         return;
 
-    /*m_common_gizmos_data->update_from_backend(m_parent, model_object);
-
-    auto* gizmo_supports = dynamic_cast<GLGizmoSlaSupports*>(m_gizmos[SlaSupports].get());
-
-
-    // note: sla support gizmo takes care of updating the common data.
-    // following lines are thus dependent
-    //gizmo_supports->set_sla_support_data(model_object, m_parent.get_selection());
-    */
     auto* gizmo_hollow = dynamic_cast<GLGizmoHollow*>(m_gizmos[Hollow].get());
     auto* gizmo_supports = dynamic_cast<GLGizmoSlaSupports*>(m_gizmos[SlaSupports].get());
     gizmo_hollow->set_sla_support_data(model_object, m_parent.get_selection());

src/slic3r/GUI/Gizmos/GLGizmosManager.hpp

@@ -139,6 +139,11 @@ public:
         EType new_current = m_current;
         m_current = old_current;
 
+        // Update common data. They should be updated when activate_gizmo is
+        // called, so it can be used in on_set_state which is called from there.
+        if (new_current != Undefined)
+            m_common_gizmos_data->update(m_gizmos[new_current]->get_requirements());
+
         // activate_gizmo call sets m_current and calls set_state for the gizmo
         // it does nothing in case the gizmo is already activated
         // it can safely be called for Undefined gizmo
@@ -167,6 +172,7 @@ public:
 
     void refresh_on_off_state();
     void reset_all_states();
+    bool is_serializing() const { return m_serializing; }
 
     void set_hover_id(int id);
     void enable_grabber(EType type, unsigned int id, bool enable);