Fix for tooltip not disappearing when loading an object using the top toolbar 'Add' command and when swithing to preview

src/slic3r/GUI/GLCanvas3D.cpp

@@ -2109,7 +2109,8 @@ void GLCanvas3D::render()
 
     set_tooltip(tooltip);
 
-    m_tooltip.render(m_mouse.position, *this);
+    if (m_tooltip_enabled)
+        m_tooltip.render(m_mouse.position, *this);
 #endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
 
     wxGetApp().plater()->get_mouse3d_controller().render_settings_dialog(*this);
@@ -2815,6 +2816,9 @@ void GLCanvas3D::bind_event_handlers()
         m_canvas->Bind(wxEVT_MIDDLE_DCLICK, &GLCanvas3D::on_mouse, this);
         m_canvas->Bind(wxEVT_RIGHT_DCLICK, &GLCanvas3D::on_mouse, this);
         m_canvas->Bind(wxEVT_PAINT, &GLCanvas3D::on_paint, this);
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+        m_canvas->Bind(wxEVT_SET_FOCUS, &GLCanvas3D::on_set_focus, this);
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
     }
 }
 
@@ -2842,6 +2846,9 @@ void GLCanvas3D::unbind_event_handlers()
         m_canvas->Unbind(wxEVT_MIDDLE_DCLICK, &GLCanvas3D::on_mouse, this);
         m_canvas->Unbind(wxEVT_RIGHT_DCLICK, &GLCanvas3D::on_mouse, this);
         m_canvas->Unbind(wxEVT_PAINT, &GLCanvas3D::on_paint, this);
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+        m_canvas->Unbind(wxEVT_SET_FOCUS, &GLCanvas3D::on_set_focus, this);
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
     }
 }
 
@@ -3541,12 +3548,18 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
             if (top_level_wnd && top_level_wnd->IsActive())
                 m_canvas->SetFocus();
             m_mouse.position = pos.cast<double>();
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+            m_tooltip_enabled = false;
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
             // 1) forces a frame render to ensure that m_hover_volume_idxs is updated even when the user right clicks while
             // the context menu is shown, ensuring it to disappear if the mouse is outside any volume and to
             // change the volume hover state if any is under the mouse 
             // 2) when switching between 3d view and preview the size of the canvas changes if the side panels are visible,
             // so forces a resize to avoid multiple renders with different sizes (seen as flickering)
             _refresh_if_shown_on_screen();
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+            m_tooltip_enabled = true;
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
         }
         m_mouse.set_start_position_2D_as_invalid();
 //#endif
@@ -3860,6 +3873,15 @@ void GLCanvas3D::on_paint(wxPaintEvent& evt)
         this->render();
 }
 
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+void GLCanvas3D::on_set_focus(wxFocusEvent& evt)
+{
+    m_tooltip_enabled = false;
+    _refresh_if_shown_on_screen();
+    m_tooltip_enabled = true;
+}
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+
 Size GLCanvas3D::get_canvas_size() const
 {
     int w = 0;

src/slic3r/GUI/GLCanvas3D.hpp

@@ -502,6 +502,7 @@ private:
     Labels m_labels;
 #if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
     mutable Tooltip m_tooltip;
+    mutable bool m_tooltip_enabled{ true };
 #endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
 #if ENABLE_SLOPE_RENDERING
     Slope m_slope;
@@ -633,6 +634,9 @@ public:
     void on_timer(wxTimerEvent& evt);
     void on_mouse(wxMouseEvent& evt);
     void on_paint(wxPaintEvent& evt);
+#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
+    void on_set_focus(wxFocusEvent& evt);
+#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
 
     Size get_canvas_size() const;
     Vec2d get_local_mouse_position() const;

src/slic3r/GUI/GUI_App.cpp

@@ -707,12 +707,6 @@ void GUI_App::load_project(wxWindow *parent, wxString& input_file) const
 
 void GUI_App::import_model(wxWindow *parent, wxArrayString& input_files) const
 {
-#if ENABLE_CANVAS_TOOLTIP_USING_IMGUI
-    if (this->plater_ != nullptr)
-        // hides the tooltip
-        plater_->get_current_canvas3D()->set_tooltip("");
-#endif // ENABLE_CANVAS_TOOLTIP_USING_IMGUI
-
     input_files.Clear();
     wxFileDialog dialog(parent ? parent : GetTopWindow(),
         _(L("Choose one or more files (STL/OBJ/AMF/3MF/PRUSA):")),