Remove Header Usings and Aliases Nothing Depends On

- ClipperUtils.hpp imported jtMiter, jtRound and jtSquare into the
  global namespace for every includer. No code names them there.
- BBLStatusBar.hpp, BBLStatusBarBind.hpp, BBLStatusBarPrint.hpp,
  BBLStatusBarSend.hpp and ProgressStatusBar.hpp re-exported their class
  into Slic3r::GUI. Nothing refers to the class through that namespace.
- Jobs/SendJob.hpp, Jobs/BindJob.hpp, Jobs/UpgradeNetworkJob.hpp and
  AuxiliaryDataViewModel.hpp declared "namespace fs = boost::filesystem;"
  at global scope without using it.

src/libslic3r/ClipperUtils.hpp

@@ -23,11 +23,6 @@ enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor };
 
 } // namespace Slic3r
 
-// import these wherever we're included
-using Slic3r::jtMiter;
-using Slic3r::jtRound;
-using Slic3r::jtSquare;
-
 namespace Slic3r {
 
 static constexpr const float                        ClipperSafetyOffset     = 10.f;

src/libslic3r/Fill/FillSpiralInset.cpp

@@ -352,6 +352,16 @@ void FillSpiralInset::_fill_surface_single(const FillParams& params,
     assert(params.use_arachne);
     assert(this->print_config != nullptr && this->print_object_config != nullptr);
 
+    // Internal solid infill must not add Arachne's standalone thin walls: one of those walls can
+    // become the extra centre point after the spiral has finished. Top and bottom surfaces keep
+    // Arachne, including the centre plug handled by generate_spiral_insets().
+    if (params.extrusion_role == erSolidInfill) {
+        Polylines polylines;
+        this->_fill_surface_single(params, thickness_layers, direction, expolygon, polylines);
+        append(thick_polylines_out, to_thick_polylines(std::move(polylines), scaled<coord_t>(this->spacing)));
+        return;
+    }
+
     // Only a solid surface is worth the variable width walls; a sparse one falls back to plain loops.
     if (params.density <= 0.9999f || params.dont_adjust) {
         Polylines polylines;

src/slic3r/GUI/AuxiliaryDataViewModel.hpp

@@ -18,8 +18,6 @@
 class AuxiliaryModelNode;
 WX_DEFINE_ARRAY_PTR(AuxiliaryModelNode*, AuxiliaryModelNodePtrArray);
 
-namespace fs = boost::filesystem;
-
 class AuxiliaryModelNode
 {
 public:

src/slic3r/GUI/BBLStatusBar.hpp

@@ -73,10 +73,6 @@ private:
     CancelFn m_cancel_cb;
 };
 
-namespace GUI {
-    using Slic3r::BBLStatusBar;
-}
-
 }
 
 #endif // BBLSTATUSBAR_HPP

src/slic3r/GUI/BBLStatusBarBind.hpp

@@ -80,10 +80,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarBind;
-}
-
 } // namespace Slic3r
 
 #endif // BBLSTATUSBAR_HPP

src/slic3r/GUI/BBLStatusBarPrint.hpp

@@ -97,10 +97,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarPrint;
-}
-
 wxDECLARE_EVENT(EVT_SHOW_ERROR_INFO, wxCommandEvent);
 
 } // namespace Slic3r

src/slic3r/GUI/BBLStatusBarSend.hpp

@@ -99,10 +99,6 @@ private:
     CancelFn m_cancel_cb_fina;
 };
 
-namespace GUI {
-using Slic3r::BBLStatusBarSend;
-}
-
 wxDECLARE_EVENT(EVT_SHOW_ERROR_INFO_SEND, wxCommandEvent);
 wxDECLARE_EVENT(EVT_SHOW_ERROR_FAIL_SEND, wxCommandEvent);
 } // namespace Slic3r

src/slic3r/GUI/GLCanvas3D.cpp

@@ -7970,9 +7970,16 @@ void GLCanvas3D::_render_fps_overlay(int fps) const
     const float margin = 10.0f * get_scale();
     const ImVec2 display_size = ImGui::GetIO().DisplaySize;
     ImVec2 pos(display_size.x - margin, margin);
+    // Last frame's size; zero until the overlay has been shown once.
+    const ImGuiWindow* self = ImGui::FindWindowByName("###fps_overlay");
+    const float left = pos.x - (self != nullptr ? self->Size.x : 0.0f);
     // The Preview legend takes the top-right corner.
     if (const ImGuiWindow* legend = ImGui::FindWindowByName("Legend"); m_canvas_type == ECanvasType::CanvasPreview && legend != nullptr && legend->Active)
         pos = ImVec2(legend->Pos.x - margin, legend->Pos.y);
+    // The toolbar row can reach the corner on a narrow canvas; stack the overlay below it then.
+    else if (m_main_toolbar.is_enabled() &&
+             get_main_toolbar_offset() + m_main_toolbar.get_width() + m_separator_toolbar.get_width() + m_gizmos.get_scaled_total_width() + m_assemble_view_toolbar.get_width() > left)
+        pos.y = std::max(m_main_toolbar.get_height(), m_gizmos.get_scaled_total_height()) + margin;
     ImGui::SetNextWindowPos(pos, ImGuiCond_Always, ImVec2(1.0f, 0.0f));
     ImGui::SetNextWindowBgAlpha(0.35f);
     ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 8.0f * get_scale());

src/slic3r/GUI/Jobs/BindJob.hpp

@@ -11,8 +11,6 @@
 
 class wxWindow;
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 

src/slic3r/GUI/Jobs/SendJob.hpp

@@ -11,8 +11,6 @@
 #include "Job.hpp"
 #include "PrintJob.hpp"
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 

src/slic3r/GUI/Jobs/UpgradeNetworkJob.hpp

@@ -12,8 +12,6 @@
 
 class wxWindow;
 
-namespace fs = boost::filesystem;
-
 namespace Slic3r {
 namespace GUI {
 

src/slic3r/GUI/ProgressStatusBar.hpp

@@ -68,10 +68,6 @@ private:
     CancelFn m_cancel_cb;
 };
 
-namespace GUI {
-    using Slic3r::ProgressStatusBar;
-}
-
 }
 
 #endif // PROGRESSSTATUSBAR_HPP

src/slic3r/GUI/Tab.cpp

@@ -2928,7 +2928,7 @@ void TabPrint::build()
         optgroup->append_single_option_line("skin_infill_line_width", "strength_settings_patterns#locked-zag");
         optgroup->append_single_option_line("skeleton_infill_line_width", "strength_settings_patterns#locked-zag");
         optgroup->append_single_option_line("symmetric_infill_y_axis", "strength_settings_infill#symmetric-infill-y-axis");
-        optgroup->append_single_option_line("infill_complete_top", "strength_settings_infill#infill-complete-top");
+        optgroup->append_single_option_line("infill_complete_top", "strength_settings_patterns#fill-pattern-tops");
         optgroup->append_single_option_line("infill_shift_step", "strength_settings_patterns#cross-hatch");
         optgroup->append_single_option_line("lateral_lattice_angle_1", "strength_settings_patterns#lateral-lattice");
         optgroup->append_single_option_line("lateral_lattice_angle_2", "strength_settings_patterns#lateral-lattice");