FIX: try to reduce page fault while idling

jira: [none]
Change-Id: I563cbf4a8ba8a4ae1e5b1b1f735753d3aef23e16
(cherry picked from commit ed1e9678c351dc037f2e3cc7ea0e19d46731699c)

src/slic3r/GUI/Widgets/AMSControl.cpp

@@ -680,6 +680,9 @@ void AMSControl::CreateAmsDoubleNozzle()
     m_down_road->UpdatePassRoad(AMSPanelPos::RIGHT_PANEL, -1, AMSPassRoadSTEP::AMS_ROAD_STEP_NONE);
     m_extruder->OnAmsLoading(false, MAIN_NOZZLE_ID);
 
+    m_amswin->Layout();
+    m_amswin->Fit();
+
     //Thaw();
 }
 
@@ -765,6 +768,9 @@ void AMSControl::CreateAmsSingleNozzle()
     m_extruder->updateNozzleNum(1);
     m_extruder->OnAmsLoading(false, MAIN_NOZZLE_ID);
 
+    m_amswin->Layout();
+    m_amswin->Fit();
+
     //Refresh();
     //Thaw();
 }
@@ -803,7 +809,12 @@ void AMSControl::show_noams_mode()
 
 void AMSControl::show_auto_refill(bool show)
 {
-    //m_img_ams_backup->Show(show);
+    if (m_button_auto_refill->IsShown() == show)
+    {
+        return;
+    }
+
+    m_button_auto_refill->Show(show);
     m_amswin->Layout();
     m_amswin->Fit();
 }

src/slic3r/GUI/Widgets/AMSItem.cpp

@@ -718,6 +718,7 @@ void AMSextruder::updateNozzleNum(int nozzle_num)
     }
 
     SetSizer(m_bitmap_sizer);
+    Refresh();
 }
 
 void AMSextruder::msw_rescale()
@@ -1527,10 +1528,10 @@ void AMSLib::Update(Caninfo info, std::string ams_idx, bool refresh)
     if (info.material_colour.Alpha() != 0 && info.material_colour.Alpha() != 255 && info.material_colour.Alpha() != 254 && m_info.material_colour != info.material_colour) {
         transparent_changed = true;
     }
+
     m_info = info;
     m_ams_id = ams_idx;
     m_slot_id = info.can_id;
-    Layout();
     if (refresh) Refresh();
 }
 
@@ -3068,6 +3069,11 @@ void AmsItem::AddLiteCan(Caninfo caninfo, int canindex, wxGridSizer* sizer)
 
 void AmsItem::Update(AMSinfo info)
 {
+    if (m_info == info)
+    {
+        return;
+    }
+
     m_info      = info;
     m_can_count = info.cans.size();
 

src/slic3r/GUI/Widgets/SideTools.cpp

@@ -57,6 +57,8 @@ void SideToolsPanel::on_timer(wxTimerEvent &event)
 
 void SideToolsPanel::set_current_printer_name(std::string dev_name)
 {
+     if (m_dev_name == from_u8(dev_name)) return;
+
      m_none_printer = false;
      m_dev_name     = from_u8(dev_name);
      Refresh();