Fix for for SPE-2338 - [LINUX] "Menu" / "Log in" has wrong label layout (is bottom placed)

(set icon size for 20px instead of 24)
+ Sidebar: nonMSW specific : Added right margin for bottom buttons
+ Gizmos toolbar: Code cleaning

src/slic3r/GUI/GLToolbar.cpp

@@ -1291,7 +1291,7 @@ void GLToolbar::render_vertical(const GLCanvas3D& parent)
 
     render_background(left, top, right, bottom, border_w, border_h);
 
-    left += border_w + gap_size_y;
+    left += border_w + gap_size_x;
     top  -= border_h + gap_size_y;
 
     // renders icons

src/slic3r/GUI/Gizmos/GLGizmosManager.cpp

@@ -62,8 +62,6 @@ std::vector<size_t> GLGizmosManager::get_selectable_idxs() const
     return out;
 }
 
-#define rect_sel 1 // square_sel, if 0
-
 GLGizmosManager::EType GLGizmosManager::get_gizmo_from_mouse(const Vec2d &mouse_pos) const
 {
     if (!m_enabled) return Undefined;
@@ -74,7 +72,6 @@ GLGizmosManager::EType GLGizmosManager::get_gizmo_from_mouse(const Vec2d &mouse_
     float border     = m_layout.scaled_border();
     float stride_y   = m_layout.scaled_stride_y();
     float gap_x      = m_layout.scaled_gap_x();
-    float gap_y      = m_layout.scaled_gap_x();
     float top_y      = 0.5f * (cnv_h - height) + border;
 
     // is mouse horizontally in the area?
@@ -83,11 +80,7 @@ GLGizmosManager::EType GLGizmosManager::get_gizmo_from_mouse(const Vec2d &mouse_
         // which icon is it on?
         size_t from_top = (size_t) ((float) mouse_pos(1) - top_y) / stride_y;
         // is it really on the icon or already past the border?
-#if rect_sel
         if ((float) mouse_pos(1) <= top_y + from_top * stride_y + icons_size) {
-#else
-        if ((float) mouse_pos(1) <= top_y + gap_y + from_top * stride_y + icons_size) {
-#endif
             std::vector<size_t> selectable = get_selectable_idxs();
             if (from_top < selectable.size()) 
                 return static_cast<EType>(selectable[from_top]);
@@ -817,14 +810,9 @@ void GLGizmosManager::do_render_overlay() const
     render_background(top_x, top_y, top_x + width, top_y - height, border_w, border_h);
 
     const float margin_w = border_w + m_layout.scaled_gap_x() * inv_cnv_w;
-    const float margin_h = border_h + m_layout.scaled_gap_y() * inv_cnv_h;
 
     top_x += margin_w;
-#if rect_sel 
     top_y -= border_h;
-#else
-    top_y -= margin_h;
-#endif
 
     const float icons_size_x = 2.0f * m_layout.scaled_icons_size() * inv_cnv_w;
     const float icons_size_y = 2.0f * m_layout.scaled_icons_size() * inv_cnv_h;
@@ -849,11 +837,7 @@ void GLGizmosManager::do_render_overlay() const
         GLGizmoBase* gizmo = m_gizmos[idx].get();
 
         if (m_current == idx)
-#if rect_sel
             render_background(top_x - margin_w, top_y + border_h, top_x + icons_size_x + margin_w, top_y - icons_size_y - border_h, border_w, border_h);
-#else
-            render_background(top_x - margin_w, top_y + margin_h, top_x + icons_size_x + margin_w, top_y - icons_size_y - margin_h, border_w, border_h);
-#endif
 
         const unsigned int sprite_id = gizmo->get_sprite_id();
         // higlighted state needs to be decided first so its highlighting in every other state
@@ -879,11 +863,7 @@ void GLGizmosManager::do_render_overlay() const
 
 float GLGizmosManager::get_scaled_total_height() const
 {
-#if rect_sel
     return 2.0f * m_layout.scaled_border() + (float)get_selectable_idxs().size() * m_layout.scaled_stride_y() - m_layout.scaled_gap_y();
-#else
-    return 2.0f * m_layout.scaled_border() + (float)get_selectable_idxs().size() * m_layout.scaled_stride_y();
-#endif
 }
 
 float GLGizmosManager::get_scaled_total_width() const

src/slic3r/GUI/Sidebar.cpp

@@ -513,7 +513,11 @@ Sidebar::Sidebar(Plater *parent)
 
     auto *sizer = new wxBoxSizer(wxVERTICAL);
     sizer->Add(m_scrolled_panel, 1, wxEXPAND);
-    sizer->Add(btns_sizer, 0, wxEXPAND | wxLEFT | wxBOTTOM, margin_5);
+    sizer->Add(btns_sizer, 0, wxEXPAND | wxLEFT | wxBOTTOM
+#ifndef _WIN32
+        | wxRIGHT
+#endif // __linux__
+        , margin_5);
     SetSizer(sizer);
 
     // Events

src/slic3r/GUI/TopBar.cpp

@@ -166,8 +166,14 @@ void TopBarItemsCtrl::Button::sys_color_changed()
     m_foreground_color = wxGetApp().get_label_clr_default();
 }
 
+#ifdef __linux__
+const int icon_sz = 20;
+#else
+const int icon_sz = 24;
+#endif
+
 TopBarItemsCtrl::ButtonWithPopup::ButtonWithPopup(wxWindow* parent, const wxString& label, const std::string& icon_name, wxSize size)
-    :TopBarItemsCtrl::Button(parent, label, icon_name, 24, size)
+    :TopBarItemsCtrl::Button(parent, label, icon_name, icon_sz, size)
 {
     if (size != wxDefaultSize)
         m_fixed_width = size.x * 0.1;
@@ -224,9 +230,7 @@ void TopBarItemsCtrl::UpdateAccountButton(bool avatar/* = false*/)
 {
     auto user_account = wxGetApp().plater()->get_user_account();
     const wxString user_name = user_account->is_logged() ? from_u8(user_account->get_username()) : _L("Log in");
-    m_account_btn->SetLabel(m_collapsed_btns ? "" : user_name);
     m_account_btn->SetToolTip(user_name);
-    const int icon_sz = 24;
 #ifdef __linux__
     if (avatar) {
         if (user_account->is_logged()) {
@@ -256,7 +260,10 @@ void TopBarItemsCtrl::UpdateAccountButton(bool avatar/* = false*/)
         }
     }
 #endif
-    m_account_btn->Refresh();
+
+    m_account_btn->SetLabel(m_collapsed_btns ? "" : user_name);
+    this->Layout();
+//    m_account_btn->Refresh();
 }
 
 void TopBarItemsCtrl::UnselectPopupButtons()

src/slic3r/GUI/wxExtensions.cpp

@@ -566,10 +566,15 @@ ScalableButton::ScalableButton( wxWindow *          parent,
     SetBitmap(bitmap.bmp());
 }
 
-void ScalableButton::SetBitmap_(const ScalableBitmap& bmp)
+void ScalableButton::SetBitmap_(const ScalableBitmap& bitmap)
 {
-    SetBitmap(bmp.bmp());
-    m_current_icon_name = bmp.name();
+    const wxBitmapBundle& bmp = bitmap.bmp();
+    SetBitmap(bmp);
+    SetBitmapCurrent(bmp);
+    SetBitmapPressed(bmp);
+    SetBitmapFocus(bmp);
+    SetBitmapDisabled(bmp);
+    m_current_icon_name = bitmap.name();
 }
 
 bool ScalableButton::SetBitmap_(const std::string& bmp_name)