Merge branch 'master' of https://github.com/prusa3d/PrusaSlicer into et_experiments

resources/fonts/README.txt

@@ -0,0 +1,12 @@
+NotoSans-Regular.ttf
+--------------------
+Name: Noto Sans Regular. Version 2.000;GOOG;noto-source:20170915:90ef993387c0; ttfautohint (v1.7) 
+It was designed by Monotype Design Team Manufacturer: Monotype Imaging Inc. 
+© Copyright 2015 Google Inc. All Rights Reserved.
+License: This Font Software is licensed under the SIL Open Font License, Version 1.1. This Font Software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the SIL Open Font License for the specific language, permissions and limitations governing your use of this Font Software.
+Supported languages: Afrikaans  Albanian  Azerbaijani  Belarusian  Bosnian  Bulgarian  Catalan  Croatian  Czech  Danish  Dutch  English  Estonian  Finnish  French  German  Greek  Hungarian  Icelandic  Italian  Latvian  Lithuanian  Macedonian  Maltese  Norwegian  Ossetic  Polish  Portugese  Romanian  Russian  Serbian  Slovak  Slovenian  Spanisch  Swedish  Turkish  Ukrainian  Uzbek  Vietnamese  Zulu
+
+NotoSansCJK-Regular.ttc
+-----------------------
+Noto Sans CJK and Noto Serif CJK comprehensively cover Simplified Chinese, Traditional Chinese, Japanese, and Korean in a unified font family. This includes the full coverage of CJK Ideographs with variation support for 4 regions, Kangxi radicals, Japanese Kana, Korean Hangul, and other CJK symbols and letters in the Basic Multilingual Plane of Unicode. It also provides limited coverage of CJK Ideographs in Plane 2 of Unicode as necessary to support standards from China and Japan.
+https://www.google.com/get/noto/help/cjk/

src/libslic3r/SLAPrint.cpp

@@ -425,7 +425,10 @@ SLAPrint::ApplyStatus SLAPrint::apply(const Model &model, const DynamicPrintConf
             print_object->set_trafo(sla_trafo(*this, model_object), model_object.instances.front()->is_left_handed());
 
             print_object->set_instances(std::move(new_instances));
-            print_object->config_apply(config, true);
+			
+			SLAPrintObjectConfig new_config = m_default_object_config;
+			normalize_and_apply_config(new_config, model_object.config);
+			print_object->config_apply(new_config, true);
             print_objects_new.emplace_back(print_object);
             new_objects = true;
         }

src/platform/msw/PrusaSlicer.rc.in

@@ -12,8 +12,8 @@ PRODUCTVERSION @SLIC3R_RC_VERSION@
    VALUE "ProductName", "@SLIC3R_APP_NAME@"
    VALUE "ProductVersion", "@SLIC3R_BUILD_ID@"
    VALUE "InternalName", "@SLIC3R_APP_NAME@"
-   VALUE "LegalCopyright", "Copyright \251 2011-2019 Alessandro Ranelucci, \251 2016-2019 Prusa Research"
+   VALUE "LegalCopyright", "Copyright \251 2016-2019 Prusa Research, \251 2011-2018 Alessandro Ranelucci"
-   VALUE "OriginalFilename", "slic3r.exe"
+   VALUE "OriginalFilename", "prusa-slicer.exe"
   }
  }
  BLOCK "VarFileInfo"

src/slic3r/GUI/AppConfig.cpp

@@ -67,6 +67,12 @@ void AppConfig::set_defaults()
     if (get("remember_output_path").empty())
         set("remember_output_path", "1");
 
+    if (get("use_custom_toolbar_size").empty())
+        set("use_custom_toolbar_size", "0");
+
+    if (get("custom_toolbar_size").empty())
+        set("custom_toolbar_size", "100");
+
     // Remove legacy window positions/sizes
     erase("", "main_frame_maximized");
     erase("", "main_frame_pos");

src/slic3r/GUI/GLCanvas3D.cpp

@@ -1266,6 +1266,8 @@ GLCanvas3D::GLCanvas3D(wxGLCanvas* canvas, Bed3D& bed, Camera& camera, GLToolbar
         m_timer.SetOwner(m_canvas);
 #if ENABLE_RETINA_GL
         m_retina_helper.reset(new RetinaHelper(canvas));
+        // set default view_toolbar icons size equal to GLGizmosManager::Default_Icons_Size
+        m_view_toolbar.set_icons_size(GLGizmosManager::Default_Icons_Size);
 #endif
     }
 
@@ -3443,9 +3445,6 @@ bool GLCanvas3D::_init_toolbar()
         return true;
     }
 
-#if ENABLE_SVG_ICONS
-    m_toolbar.set_icons_size(40);
-#endif // ENABLE_SVG_ICONS
 //    m_toolbar.set_layout_type(GLToolbar::Layout::Vertical);
     m_toolbar.set_layout_type(GLToolbar::Layout::Horizontal);
     m_toolbar.set_layout_orientation(GLToolbar::Layout::Top);
@@ -4122,10 +4121,14 @@ void GLCanvas3D::_render_current_gizmo() const
 void GLCanvas3D::_render_gizmos_overlay() const
 {
 #if ENABLE_RETINA_GL
-    m_gizmos.set_overlay_scale(m_retina_helper->get_scale_factor());
+//     m_gizmos.set_overlay_scale(m_retina_helper->get_scale_factor());
+    const float scale = m_retina_helper->get_scale_factor()*wxGetApp().toolbar_icon_scale();
+    m_gizmos.set_overlay_scale(scale); //! #ys_FIXME_experiment
 #else
 //     m_gizmos.set_overlay_scale(m_canvas->GetContentScaleFactor());
-    m_gizmos.set_overlay_scale(wxGetApp().em_unit()*0.1f);//! #ys_FIXME_experiment
+//     m_gizmos.set_overlay_scale(wxGetApp().em_unit()*0.1f);
+    const float size = int(GLGizmosManager::Default_Icons_Size*wxGetApp().toolbar_icon_scale());
+    m_gizmos.set_overlay_icon_size(size); //! #ys_FIXME_experiment
 #endif /* __WXMSW__ */
 
     m_gizmos.render_overlay(*this, m_selection);
@@ -4135,10 +4138,14 @@ void GLCanvas3D::_render_toolbar() const
 {
 #if ENABLE_SVG_ICONS
 #if ENABLE_RETINA_GL
-    m_toolbar.set_scale(m_retina_helper->get_scale_factor());
+//     m_toolbar.set_scale(m_retina_helper->get_scale_factor());
+    const float scale = m_retina_helper->get_scale_factor() * wxGetApp().toolbar_icon_scale(true);
+    m_toolbar.set_scale(scale); //! #ys_FIXME_experiment
 #else
 //     m_toolbar.set_scale(m_canvas->GetContentScaleFactor());
-    m_toolbar.set_scale(wxGetApp().em_unit()*0.1f);//! #ys_FIXME_experiment
+//     m_toolbar.set_scale(wxGetApp().em_unit()*0.1f);
+    const float size = int(GLToolbar::Default_Icons_Size * wxGetApp().toolbar_icon_scale(true));
+    m_toolbar.set_icons_size(size); //! #ys_FIXME_experiment
 #endif // ENABLE_RETINA_GL
 
     Size cnv_size = get_canvas_size();
@@ -4199,10 +4206,14 @@ void GLCanvas3D::_render_view_toolbar() const
 {
 #if ENABLE_SVG_ICONS
 #if ENABLE_RETINA_GL
-    m_view_toolbar.set_scale(m_retina_helper->get_scale_factor());
+//     m_view_toolbar.set_scale(m_retina_helper->get_scale_factor());
+    const float scale = m_retina_helper->get_scale_factor() * wxGetApp().toolbar_icon_scale();
+    m_view_toolbar.set_scale(scale); //! #ys_FIXME_experiment
 #else
 //     m_view_toolbar.set_scale(m_canvas->GetContentScaleFactor());
-    m_view_toolbar.set_scale(wxGetApp().em_unit()*0.1f); //! #ys_FIXME_experiment
+//     m_view_toolbar.set_scale(wxGetApp().em_unit()*0.1f);
+    const float size = int(GLGizmosManager::Default_Icons_Size * wxGetApp().toolbar_icon_scale());
+    m_view_toolbar.set_icons_size(size); //! #ys_FIXME_experiment
 #endif // ENABLE_RETINA_GL
 
     Size cnv_size = get_canvas_size();

src/slic3r/GUI/GLToolbar.cpp

@@ -123,7 +123,7 @@ BackgroundTexture::Metadata::Metadata()
 }
 
 #if ENABLE_SVG_ICONS
-const float GLToolbar::Default_Icons_Size = 64.0f;
+const float GLToolbar::Default_Icons_Size = 40.0f;
 #endif // ENABLE_SVG_ICONS
 
 GLToolbar::Layout::Layout()

src/slic3r/GUI/GUI_App.cpp

@@ -390,6 +390,27 @@ void GUI_App::set_label_clr_sys(const wxColour& clr) {
     app_config->save();
 }
 
+float GUI_App::toolbar_icon_scale(const bool is_limited/* = false*/) const
+{
+#ifdef __APPLE__
+    const float icon_sc = 1.0f; // for Retina display will be used its own scale
+#else
+    const float icon_sc = m_em_unit*0.1f;
+#endif // __APPLE__
+
+    const std::string& use_val  = app_config->get("use_custom_toolbar_size");
+    const std::string& val      = app_config->get("custom_toolbar_size");
+
+    if (val.empty() || use_val.empty() || use_val == "0")
+        return icon_sc;
+
+    int int_val = atoi(val.c_str());
+    if (is_limited && int_val < 50)
+        int_val = 50;
+
+    return 0.01f * int_val * icon_sc;
+}
+
 void GUI_App::recreate_GUI()
 {
     // Weird things happen as the Paint messages are floating around the windows being destructed.

src/slic3r/GUI/GUI_App.hpp

@@ -115,6 +115,7 @@ public:
     const wxFont&   normal_font()           { return m_normal_font; }
     size_t          em_unit() const         { return m_em_unit; }
     void            set_em_unit(const size_t em_unit)    { m_em_unit = em_unit; }
+    float           toolbar_icon_scale(const bool is_limited = false) const;
 
     void            recreate_GUI();
     void            system_info();

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -355,8 +355,8 @@ DynamicPrintConfig& ObjectList::get_item_config(const wxDataViewItem& item) cons
     const int vol_idx = type & itVolume ? m_objects_model->GetVolumeIdByItem(item) : -1;
 
     assert(obj_idx >= 0 || ((type & itVolume) && vol_idx >=0));
-    return type & itObject|itInstance ? (*m_objects)[obj_idx]->config :
+    return type & itVolume ?(*m_objects)[obj_idx]->volumes[vol_idx]->config :
-        (*m_objects)[obj_idx]->volumes[vol_idx]->config;
+                            (*m_objects)[obj_idx]->config;
 }
 
 wxDataViewColumn* ObjectList::create_objects_list_extruder_column(int extruders_count)

src/slic3r/GUI/ImGuiWrapper.cpp

@@ -28,6 +28,7 @@ namespace GUI {
 
 ImGuiWrapper::ImGuiWrapper()
     : m_glyph_ranges(nullptr)
+    , m_font_cjk(false)
     , m_font_size(18.0)
     , m_font_texture(0)
     , m_style_scaling(1.0)
@@ -68,16 +69,52 @@ void ImGuiWrapper::set_language(const std::string &language)
         0x0100, 0x017F, // Latin Extended-A
         0,
     };
+	static const ImWchar ranges_turkish[] = {
+		0x0020, 0x01FF, // Basic Latin + Latin Supplement
+		0x0100, 0x017F, // Latin Extended-A
+		0x0180, 0x01FF, // Turkish
+		0,
+	};
+    static const ImWchar ranges_vietnamese[] =
+    {
+        0x0020, 0x00FF, // Basic Latin
+        0x0102, 0x0103,
+        0x0110, 0x0111,
+        0x0128, 0x0129,
+        0x0168, 0x0169,
+        0x01A0, 0x01A1,
+        0x01AF, 0x01B0,
+        0x1EA0, 0x1EF9,
+        0,
+    };
+    m_font_cjk = false;
     if (lang == "cs" || lang == "pl") {
         ranges = ranges_latin2;
     } else if (lang == "ru" || lang == "uk") {
-        ranges = ImGui::GetIO().Fonts->GetGlyphRangesCyrillic();
+        ranges = ImGui::GetIO().Fonts->GetGlyphRangesCyrillic(); // Default + about 400 Cyrillic characters
+    } else if (lang == "tr") {
+        ranges = ranges_turkish;
+    } else if (lang == "vi") {
+        ranges = ranges_vietnamese;
     } else if (lang == "jp") {
-        ranges = ImGui::GetIO().Fonts->GetGlyphRangesJapanese();
+        ranges = ImGui::GetIO().Fonts->GetGlyphRangesJapanese(); // Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
+        m_font_cjk = true;
     } else if (lang == "ko") {
-        ranges = ImGui::GetIO().Fonts->GetGlyphRangesKorean();
+        ranges = ImGui::GetIO().Fonts->GetGlyphRangesKorean(); // Default + Korean characters
+        m_font_cjk = true;
     } else if (lang == "zh") {
-        ranges = ImGui::GetIO().Fonts->GetGlyphRangesChineseSimplifiedCommon();
+        ranges = (language == "zh_TW") ?
+            // Traditional Chinese
+            // Default + Half-Width + Japanese Hiragana/Katakana + full set of about 21000 CJK Unified Ideographs
+            ImGui::GetIO().Fonts->GetGlyphRangesChineseFull() :
+            // Simplified Chinese
+            // Default + Half-Width + Japanese Hiragana/Katakana + set of 2500 CJK Unified Ideographs for common simplified Chinese
+            ImGui::GetIO().Fonts->GetGlyphRangesChineseSimplifiedCommon();
+        m_font_cjk = true;
+    } else if (lang == "th") {
+        ranges = ImGui::GetIO().Fonts->GetGlyphRangesThai(); // Default + Thai characters
+    } else {
+        ranges = ImGui::GetIO().Fonts->GetGlyphRangesDefault(); // Basic Latin, Extended Latin
     }
 
     if (ranges != m_glyph_ranges) {
@@ -352,7 +389,9 @@ void ImGuiWrapper::init_font()
 
     ImGuiIO& io = ImGui::GetIO();
     io.Fonts->Clear();
-    ImFont* font = io.Fonts->AddFontFromFileTTF((Slic3r::resources_dir() + "/fonts/NotoSans-Regular.ttf").c_str(), m_font_size, nullptr, m_glyph_ranges);
+    //FIXME replace with io.Fonts->AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, m_font_size, nullptr, m_glyph_ranges);
+    //https://github.com/ocornut/imgui/issues/220
+	ImFont* font = io.Fonts->AddFontFromFileTTF((Slic3r::resources_dir() + "/fonts/" + (m_font_cjk ? "NotoSansCJK-Regular.ttc" : "NotoSans-Regular.ttf")).c_str(), m_font_size, nullptr, m_glyph_ranges);
     if (font == nullptr) {
         font = io.Fonts->AddFontDefault();
         if (font == nullptr) {

src/slic3r/GUI/ImGuiWrapper.hpp

@@ -19,6 +19,8 @@ namespace GUI {
 class ImGuiWrapper
 {
     const ImWchar *m_glyph_ranges;
+    // Chinese, Japanese, Korean
+    bool m_font_cjk;
     float m_font_size;
     unsigned m_font_texture;
     float m_style_scaling;

src/slic3r/GUI/Plater.cpp

@@ -259,29 +259,45 @@ wxBitmapComboBox(parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(15 *
     if (preset_type == Slic3r::Preset::TYPE_FILAMENT)
     {
         Bind(wxEVT_LEFT_DOWN, [this](wxMouseEvent &event) {
-            if (extruder_idx < 0 || event.GetLogicalPosition(wxClientDC(this)).x > 24) {
+            int shifl_Left = 0;
+            float scale = m_em_unit*0.1f;
+#if defined(wxBITMAPCOMBOBOX_OWNERDRAWN_BASED)
+            shifl_Left  = int(scale * 4 + 0.5f); // IMAGE_SPACING_RIGHT = 4 for wxBitmapComboBox -> Space left of image
+#endif
+            int icon_right_pos = int(scale * (24+4) + 0.5);
+            int mouse_pos = event.GetLogicalPosition(wxClientDC(this)).x;
+//             if (extruder_idx < 0 || event.GetLogicalPosition(wxClientDC(this)).x > 24) {
+            if ( extruder_idx < 0 || mouse_pos < shifl_Left || mouse_pos > icon_right_pos ) {
                 // Let the combo box process the mouse click.
                 event.Skip();
                 return;
             }
             
             // Swallow the mouse click and open the color picker.
+
+            // get current color
+            DynamicPrintConfig* cfg = wxGetApp().get_tab(Preset::TYPE_PRINTER)->get_config();
+            auto colors = static_cast<ConfigOptionStrings*>(cfg->option("extruder_colour")->clone());
+            wxColour clr(colors->values[extruder_idx]);
+            if (!clr.IsOk())
+                clr = wxTransparentColour;
+
             auto data = new wxColourData();
             data->SetChooseFull(1);
-            auto dialog = new wxColourDialog(/* wxGetApp().mainframe */this, data);
+            data->SetColour(clr);
-            dialog->CenterOnParent();
-            if (dialog->ShowModal() == wxID_OK) {
-                DynamicPrintConfig cfg = *wxGetApp().get_tab(Preset::TYPE_PRINTER)->get_config(); 
 
-                //FIXME this is too expensive to call full_config to get just the extruder color!
+            auto dialog = new wxColourDialog(this, data);
-                auto colors = static_cast<ConfigOptionStrings*>(wxGetApp().preset_bundle->full_config().option("extruder_colour")->clone());
+            dialog->CenterOnParent();
+            if (dialog->ShowModal() == wxID_OK)
+            {
                 colors->values[extruder_idx] = dialog->GetColourData().GetColour().GetAsString(wxC2S_HTML_SYNTAX);
 
-                cfg.set_key_value("extruder_colour", colors);
+                DynamicPrintConfig cfg_new = *cfg; 
+                cfg_new.set_key_value("extruder_colour", colors);
 
-                wxGetApp().get_tab(Preset::TYPE_PRINTER)->load_config(cfg);
+                wxGetApp().get_tab(Preset::TYPE_PRINTER)->load_config(cfg_new);
                 wxGetApp().preset_bundle->update_platter_filament_ui(extruder_idx, this);
-                wxGetApp().plater()->on_config_change(cfg);
+                wxGetApp().plater()->on_config_change(cfg_new);
             }
             dialog->Destroy();
         });

src/slic3r/GUI/Preferences.cpp

@@ -10,6 +10,9 @@ PreferencesDialog::PreferencesDialog(wxWindow* parent) :
     DPIDialog(parent, wxID_ANY, _(L("Preferences")), wxDefaultPosition, 
               wxDefaultSize, wxDEFAULT_DIALOG_STYLE)
 {
+#ifdef __WXOSX__
+    isOSX = true;
+#endif
 	build();
 }
 
@@ -18,8 +21,13 @@ void PreferencesDialog::build()
 	auto app_config = get_app_config();
 	m_optgroup = std::make_shared<ConfigOptionsGroup>(this, _(L("General")));
     m_optgroup->label_width = 40;
-	m_optgroup->m_on_change = [this](t_config_option_key opt_key, boost::any value){
+	m_optgroup->m_on_change = [this](t_config_option_key opt_key, boost::any value) {
 		m_values[opt_key] = boost::any_cast<bool>(value) ? "1" : "0";
+
+        if (opt_key == "use_custom_toolbar_size") {
+            m_icon_size_sizer->ShowItems(boost::any_cast<bool>(value));
+            this->layout();
+        }
 	};
 
 	// TODO
@@ -109,6 +117,16 @@ void PreferencesDialog::build()
 	m_optgroup->append_single_option_line(option);
 #endif
 
+	def.label = L("Use custom size for toolbar icons");
+	def.type = coBool;
+	def.tooltip = L("If enabled, you can change size of toolbar icons manually.");
+	def.set_default_value(new ConfigOptionBool{ app_config->get("use_custom_toolbar_size") == "1" });
+	option = Option (def,"use_custom_toolbar_size");
+    m_optgroup->append_single_option_line(option);
+
+    create_icon_size_slider();
+    m_icon_size_sizer->ShowItems(app_config->get("use_custom_toolbar_size") == "1");
+
 	auto sizer = new wxBoxSizer(wxVERTICAL);
 	sizer->Add(m_optgroup->sizer, 0, wxEXPAND | wxBOTTOM | wxLEFT | wxRIGHT, 10);
 
@@ -145,17 +163,79 @@ void PreferencesDialog::on_dpi_changed(const wxRect &suggested_rect)
 {
     m_optgroup->msw_rescale();
 
+    msw_buttons_rescale(this, em_unit(), { wxID_OK, wxID_CANCEL });
+
+    layout();
+}
+
+void PreferencesDialog::layout()
+{
     const int em = em_unit();
 
-    msw_buttons_rescale(this, em, { wxID_OK, wxID_CANCEL });
+    SetMinSize(wxSize(47 * em, 28 * em));
-
-    const wxSize& size = wxSize(47 * em, 28 * em);
-
-    SetMinSize(size);
     Fit();
 
     Refresh();
 }
 
+void PreferencesDialog::create_icon_size_slider()
+{
+    const auto app_config = get_app_config();
+
+    const int em = em_unit();
+
+    m_icon_size_sizer = new wxBoxSizer(wxHORIZONTAL);
+
+    wxWindow* parent = m_optgroup->ctrl_parent();
+
+    if (isOSX)
+        // For correct rendering of the slider and value label under OSX
+        // we should use system default background
+        parent->SetBackgroundStyle(wxBG_STYLE_ERASE);
+
+    auto label = new wxStaticText(parent, wxID_ANY, _(L("Icon size in a respect to the default size")) + " (%) :");
+
+    m_icon_size_sizer->Add(label, 0, wxALIGN_CENTER_VERTICAL| wxRIGHT | (isOSX ? 0 : wxLEFT), em);
+
+    const int def_val = atoi(app_config->get("custom_toolbar_size").c_str());
+
+    long style = wxSL_HORIZONTAL;
+    if (!isOSX)
+        style |= wxSL_LABELS | wxSL_AUTOTICKS;
+
+    auto slider = new wxSlider(parent, wxID_ANY, def_val, 30, 100, 
+                               wxDefaultPosition, wxDefaultSize, style);
+
+    slider->SetTickFreq(10);
+    slider->SetPageSize(10);
+    slider->SetToolTip(_(L("Select toolbar icon size in respect to the default one.")));
+
+    m_icon_size_sizer->Add(slider, 1, wxEXPAND);
+
+    wxStaticText* val_label{ nullptr };
+    if (isOSX) {
+        val_label = new wxStaticText(parent, wxID_ANY, wxString::Format("%d", def_val));
+        m_icon_size_sizer->Add(val_label, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, em);
+    }
+
+    slider->Bind(wxEVT_SLIDER, ([this, slider, val_label](wxCommandEvent e) {
+        auto val = slider->GetValue();
+        m_values["custom_toolbar_size"] = (boost::format("%d") % val).str();
+
+        if (val_label)
+            val_label->SetLabelText(wxString::Format("%d", val));
+    }), slider->GetId());
+
+    for (wxWindow* win : std::vector<wxWindow*>{ slider, label, val_label }) {
+        if (!win) continue;         
+        win->SetFont(wxGetApp().normal_font());
+
+        if (isOSX) continue; // under OSX we use wxBG_STYLE_ERASE
+        win->SetBackgroundStyle(wxBG_STYLE_PAINT);
+    }
+
+    m_optgroup->sizer->Add(m_icon_size_sizer, 0, wxEXPAND | wxALL, em);
+}
+
 } // GUI
 } // Slic3r

src/slic3r/GUI/Preferences.hpp

@@ -16,6 +16,8 @@ class PreferencesDialog : public DPIDialog
 {
 	std::map<std::string, std::string>	m_values;
 	std::shared_ptr<ConfigOptionsGroup>	m_optgroup;
+    wxSizer*                            m_icon_size_sizer;
+    bool                                isOSX {false};
 public:
 	PreferencesDialog(wxWindow* parent);
 	~PreferencesDialog() {}
@@ -25,6 +27,8 @@ public:
 
 protected:
     void on_dpi_changed(const wxRect &suggested_rect) override;
+    void layout();
+    void create_icon_size_slider();
 };
 
 } // GUI