Preferences: notify_relese option with Choice type Field.

OptionsGroup:: Added possibility of the right alignment of the controls
+ Added separator line to Preferences

src/libslic3r/AppConfig.cpp

@@ -121,10 +121,10 @@ void AppConfig::set_defaults()
 
         if (get("auto_toolbar_size").empty())
             set("auto_toolbar_size", "100");
+ 
+       if (get("notify_release").empty())
+           set("notify_release", "all"); // or "none" or "release"
 
-       
-       if (get("notify_testing_release").empty())
-           set("notify_testing_release", "1");
 #if ENABLE_ENVIRONMENT_MAP
         if (get("use_environment_map").empty())
             set("use_environment_map", "0");

src/slic3r/GUI/GUI_App.cpp

@@ -919,7 +919,6 @@ bool GUI_App::on_init_inner()
             }
             });
         Bind(EVT_SLIC3R_ALPHA_VERSION_ONLINE, [this](const wxCommandEvent& evt) {
-            //app_config->set("version_alpha_online", into_u8(evt.GetString()));
             app_config->save();
             if (this->plater_ != nullptr && app_config->get("notify_testing_release") == "1") {
                 if (*Semver::parse(SLIC3R_VERSION) < *Semver::parse(into_u8(evt.GetString()))) {
@@ -928,7 +927,6 @@ bool GUI_App::on_init_inner()
             }
             });
         Bind(EVT_SLIC3R_BETA_VERSION_ONLINE, [this](const wxCommandEvent& evt) {
-            //app_config->set("version_beta_online", into_u8(evt.GetString()));
             app_config->save();
             if (this->plater_ != nullptr && app_config->get("notify_testing_release") == "1") {
                 if (*Semver::parse(SLIC3R_VERSION) < *Semver::parse(into_u8(evt.GetString()))) {

src/slic3r/GUI/OG_CustomCtrl.cpp

@@ -72,6 +72,11 @@ void OG_CustomCtrl::init_ctrl_lines()
     const std::vector<Line>& og_lines = opt_group->get_lines();
     for (const Line& line : og_lines)
     {
+        if (line.is_separator()) {
+            ctrl_lines.emplace_back(CtrlLine(0, this, line));
+            continue;
+        }
+
         if (line.full_width && (
             // description line
             line.widget != nullptr ||
@@ -124,6 +129,15 @@ wxPoint OG_CustomCtrl::get_pos(const Line& line, Field* field_in/* = nullptr*/)
             line_height = win_height;
     };
 
+    auto correct_horiz_pos = [this](int& h_pos, Field* field) {
+        if (m_max_win_width > 0 && field->getWindow()) {
+            int win_width = field->getWindow()->GetSize().GetWidth();
+            if (dynamic_cast<CheckBox*>(field))
+                win_width *= 0.5;
+            h_pos += m_max_win_width - win_width;
+        }
+    };
+
     for (CtrlLine& ctrl_line : ctrl_lines) {
         if (&ctrl_line.og_line == &line)
         {
@@ -160,6 +174,7 @@ wxPoint OG_CustomCtrl::get_pos(const Line& line, Field* field_in/* = nullptr*/)
                 h_pos += 3 * blinking_button_width;
                 Field* field = opt_group->get_field(option_set.front().opt_id);
                 correct_line_height(ctrl_line.height, field->getWindow());
+                correct_horiz_pos(h_pos, field);
                 break;
             }
 
@@ -189,8 +204,10 @@ wxPoint OG_CustomCtrl::get_pos(const Line& line, Field* field_in/* = nullptr*/)
                 }                
                 h_pos += (opt.opt.gui_type == ConfigOptionDef::GUIType::legend ? 1 : 3) * blinking_button_width;
                 
-                if (field == field_in)
+                if (field == field_in) {
+                    correct_horiz_pos(h_pos, field);
                     break;
+                }
                 if (opt.opt.gui_type == ConfigOptionDef::GUIType::legend)
                     h_pos += 2 * blinking_button_width;
 
@@ -361,6 +378,28 @@ void OG_CustomCtrl::correct_widgets_position(wxSizer* widget, const Line& line,
         }
 };
 
+void OG_CustomCtrl::init_max_win_width()
+{
+    if (opt_group->ctrl_horiz_alignment == wxALIGN_RIGHT && m_max_win_width == 0)
+        for (CtrlLine& line : ctrl_lines) {
+            if (int max_win_width = line.get_max_win_width();
+                m_max_win_width < max_win_width)
+                m_max_win_width = max_win_width;
+        }
+}
+
+void OG_CustomCtrl::set_max_win_width(int max_win_width)
+{
+    if (m_max_win_width == max_win_width)
+        return;
+    m_max_win_width = max_win_width;
+    for (CtrlLine& line : ctrl_lines)
+        line.correct_items_positions();
+
+    GetParent()->Layout();
+}
+
+
 void OG_CustomCtrl::msw_rescale()
 {
 #ifdef __WXOSX__
@@ -374,6 +413,8 @@ void OG_CustomCtrl::msw_rescale()
     m_bmp_mode_sz = create_scaled_bitmap("mode_simple", this, wxOSX ? 10 : 12).GetSize();
     m_bmp_blinking_sz = create_scaled_bitmap("search_blink", this).GetSize();
 
+    m_max_win_width = 0;
+
     wxCoord    v_pos = 0;
     for (CtrlLine& line : ctrl_lines) {
         line.msw_rescale();
@@ -407,6 +448,21 @@ OG_CustomCtrl::CtrlLine::CtrlLine(  wxCoord         height,
     }
 }
 
+int OG_CustomCtrl::CtrlLine::get_max_win_width()
+{
+    int max_win_width = 0;
+    if (!draw_just_act_buttons) {
+        const std::vector<Option>& option_set = og_line.get_options();
+        for (auto opt : option_set) {
+            Field* field = ctrl->opt_group->get_field(opt.opt_id);
+            if (field && field->getWindow())
+                max_win_width = field->getWindow()->GetSize().GetWidth();
+        }
+    }
+
+    return max_win_width;
+}
+
 void OG_CustomCtrl::CtrlLine::correct_items_positions()
 {
     if (draw_just_act_buttons || !is_visible)
@@ -447,6 +503,8 @@ void OG_CustomCtrl::CtrlLine::msw_rescale()
 
 void OG_CustomCtrl::CtrlLine::update_visibility(ConfigOptionMode mode)
 {
+    if (og_line.is_separator())
+        return;
     const std::vector<Option>& option_set = og_line.get_options();
 
     const ConfigOptionMode& line_mode = option_set.front().opt.mode;
@@ -480,8 +538,25 @@ void OG_CustomCtrl::CtrlLine::update_visibility(ConfigOptionMode mode)
     correct_items_positions();
 }
 
+void OG_CustomCtrl::CtrlLine::render_separator(wxDC& dc, wxCoord v_pos)
+{
+    wxPoint begin(ctrl->m_h_gap, v_pos);
+    wxPoint end(ctrl->GetSize().GetWidth() - ctrl->m_h_gap, v_pos);
+
+    wxPen pen, old_pen = pen = dc.GetPen();
+    pen.SetColour(*wxLIGHT_GREY);
+    dc.SetPen(pen);
+    dc.DrawLine(begin, end);
+    dc.SetPen(old_pen);
+}
+
 void OG_CustomCtrl::CtrlLine::render(wxDC& dc, wxCoord v_pos)
 {
+    if (is_separator()) {
+        render_separator(dc, v_pos);
+        return;
+    }
+
     Field* field = ctrl->opt_group->get_field(og_line.get_options().front().opt_id);
 
     bool suppress_hyperlinks = get_app_config()->get("suppress_hyperlinks") == "1";

src/slic3r/GUI/OG_CustomCtrl.hpp

@@ -33,6 +33,8 @@ class OG_CustomCtrl :public wxPanel
     wxSize  m_bmp_mode_sz;
     wxSize  m_bmp_blinking_sz;
 
+    int     m_max_win_width{0};
+
     struct CtrlLine {
         wxCoord           height  { wxDefaultCoord };
         OG_CustomCtrl*    ctrl    { nullptr };
@@ -50,16 +52,20 @@ class OG_CustomCtrl :public wxPanel
                     bool            draw_mode_bitmap = true);
         ~CtrlLine() { ctrl = nullptr; }
 
+        int     get_max_win_width();
         void    correct_items_positions();
         void    msw_rescale();
         void    update_visibility(ConfigOptionMode mode);
 
+        void render_separator(wxDC& dc, wxCoord v_pos);
+
         void    render(wxDC& dc, wxCoord v_pos);
         wxCoord draw_mode_bmp(wxDC& dc, wxCoord v_pos);
         wxCoord draw_text      (wxDC& dc, wxPoint pos, const wxString& text, const wxColour* color, int width, bool is_url = false);
         wxPoint draw_blinking_bmp(wxDC& dc, wxPoint pos, bool is_blinking);
         wxCoord draw_act_bmps(wxDC& dc, wxPoint pos, const wxBitmap& bmp_undo_to_sys, const wxBitmap& bmp_undo, bool is_blinking, size_t rect_id = 0);
         bool    launch_browser() const;
+        bool    is_separator() const { return og_line.is_separator(); }
 
         std::vector<wxRect> rects_undo_icon;
         std::vector<wxRect> rects_undo_to_sys_icon;
@@ -86,6 +92,9 @@ public:
     bool    update_visibility(ConfigOptionMode mode);
     void    correct_window_position(wxWindow* win, const Line& line, Field* field = nullptr);
     void    correct_widgets_position(wxSizer* widget, const Line& line, Field* field = nullptr);
+    void    init_max_win_width();
+    void    set_max_win_width(int max_win_width);
+    int     get_max_win_width() { return m_max_win_width; }
 
     void    msw_rescale();
     void    sys_color_changed();

src/slic3r/GUI/OptionsGroup.cpp

@@ -126,6 +126,12 @@ bool OptionsGroup::is_legend_line()
 	return false;
 }
 
+void OptionsGroup::set_max_win_width(int max_win_width)
+{
+    if (custom_ctrl)
+        custom_ctrl->set_max_win_width(max_win_width);
+}
+
 void OptionsGroup::show_field(const t_config_option_key& opt_key, bool show/* = true*/)
 {
     Field* field = get_field(opt_key);
@@ -185,8 +191,16 @@ void OptionsGroup::append_line(const Line& line)
         m_options_mode.push_back(option_set[0].opt.mode);
 }
 
+void OptionsGroup::append_separator()
+{
+    m_lines.emplace_back(Line());
+}
+
 void OptionsGroup::activate_line(Line& line)
 {
+    if (line.is_separator())
+        return;
+
 	m_use_custom_ctrl_as_parent = false;
 
 	if (line.full_width && (
@@ -396,7 +410,7 @@ void OptionsGroup::activate_line(Line& line)
 }
 
 // create all controls for the option group from the m_lines
-bool OptionsGroup::activate(std::function<void()> throw_if_canceled)
+bool OptionsGroup::activate(std::function<void()> throw_if_canceled/* = [](){}*/, int horiz_alignment/* = wxALIGN_LEFT*/)
 {
 	if (sizer)//(!sizer->IsEmpty())
 		return false;
@@ -436,6 +450,10 @@ bool OptionsGroup::activate(std::function<void()> throw_if_canceled)
 			throw_if_canceled();
 			activate_line(line);
 		}
+
+        ctrl_horiz_alignment = horiz_alignment;
+        if (custom_ctrl)
+            custom_ctrl->init_max_win_width();
 	} catch (UIBuildCanceled&) {
 		auto p = sizer;
 		this->clear();

src/slic3r/GUI/OptionsGroup.hpp

@@ -49,6 +49,7 @@ using t_option = std::unique_ptr<Option>;	//!
 
 /// Represents option lines
 class Line {
+	bool		m_is_separator{ false };
 public:
     wxString	label;
     wxString	label_tooltip;
@@ -71,6 +72,9 @@ public:
     }
 	Line(wxString label, wxString tooltip) :
 		label(_(label)), label_tooltip(_(tooltip)) {}
+	Line() : m_is_separator(true) {}
+
+	bool is_separator() const { return m_is_separator; }
 
     const std::vector<widget_t>&	get_extra_widgets() const {return m_extra_widgets;}
     const std::vector<Option>&		get_options() const { return m_options; }
@@ -95,6 +99,7 @@ public:
     size_t			label_width = 20 ;// {200};
     wxSizer*		sizer {nullptr};
 	OG_CustomCtrl*  custom_ctrl{ nullptr };
+	int				ctrl_horiz_alignment{ wxALIGN_LEFT};
     column_t		extra_column {nullptr};
     t_change		m_on_change { nullptr };
 	// To be called when the field loses focus, to assign a new initial value to the field.
@@ -124,12 +129,13 @@ public:
 	void		activate_line(Line& line);
 
 	// create all controls for the option group from the m_lines
-	bool		activate(std::function<void()> throw_if_canceled = [](){});
+	bool		activate(std::function<void()> throw_if_canceled = [](){}, int horiz_alignment = wxALIGN_LEFT);
 	// delete all controls from the option group
 	void		clear(bool destroy_custom_ctrl = false);
 
     Line		create_single_option_line(const Option& option, const wxString& path = wxEmptyString) const;
     void		append_single_option_line(const Option& option, const wxString& path = wxEmptyString) { append_line(create_single_option_line(option, path)); }
+	void		append_separator();
 
     // return a non-owning pointer reference 
     inline Field*	get_field(const t_config_option_key& id) const{
@@ -171,6 +177,9 @@ public:
     wxGridSizer*        get_grid_sizer() { return m_grid_sizer; }
 	const std::vector<Line>& get_lines() { return m_lines; }
 	bool				is_legend_line();
+	// if we have to set the same control alignment for different option groups, 
+    // we have to set same max contrtol width to all of them
+	void				set_max_win_width(int max_win_width);
 
 protected:
 	std::map<t_config_option_key, Option>	m_options;

src/slic3r/GUI/Preferences.cpp

@@ -8,8 +8,38 @@
 #include <wx/notebook.h>
 #include "Notebook.hpp"
 #include "ButtonsDescription.hpp"
+#include "OG_CustomCtrl.hpp"
 
 namespace Slic3r {
+
+	static t_config_enum_names enum_names_from_keys_map(const t_config_enum_values& enum_keys_map)
+	{
+		t_config_enum_names names;
+		int cnt = 0;
+		for (const auto& kvp : enum_keys_map)
+			cnt = std::max(cnt, kvp.second);
+		cnt += 1;
+		names.assign(cnt, "");
+		for (const auto& kvp : enum_keys_map)
+			names[kvp.second] = kvp.first;
+		return names;
+	}
+
+#define CONFIG_OPTION_ENUM_DEFINE_STATIC_MAPS(NAME) \
+    static t_config_enum_names s_keys_names_##NAME = enum_names_from_keys_map(s_keys_map_##NAME); \
+    template<> const t_config_enum_values& ConfigOptionEnum<NAME>::get_enum_values() { return s_keys_map_##NAME; } \
+    template<> const t_config_enum_names& ConfigOptionEnum<NAME>::get_enum_names() { return s_keys_names_##NAME; }
+
+
+
+	static const t_config_enum_values s_keys_map_NotifyReleaseMode = {
+		{"all",         NotifyReleaseAll},
+		{"release",     NotifyReleaseOnly},
+		{"none",        NotifyReleaseNone},
+	};
+
+	CONFIG_OPTION_ENUM_DEFINE_STATIC_MAPS(NotifyReleaseMode)
+
 namespace GUI {
 
 PreferencesDialog::PreferencesDialog(wxWindow* parent, int selected_tab) :
@@ -39,7 +69,7 @@ static std::shared_ptr<ConfigOptionsGroup>create_options_tab(const wxString& tit
 
 static void activate_options_tab(std::shared_ptr<ConfigOptionsGroup> optgroup)
 {
-	optgroup->activate();
+	optgroup->activate([](){}, wxALIGN_RIGHT);
 	optgroup->update_visibility(comSimple);
 	wxBoxSizer* sizer = static_cast<wxBoxSizer*>(static_cast<wxPanel*>(optgroup->parent())->GetSizer());
 	sizer->Add(optgroup->sizer, 0, wxEXPAND | wxALL, 10);
@@ -116,6 +146,8 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "version_check");
 		m_optgroup_general->append_single_option_line(option);
 
+		m_optgroup_general->append_separator();
+
 		// Please keep in sync with ConfigWizard
 		def.label = L("Export sources full pathnames to 3mf and amf");
 		def.type = coBool;
@@ -141,6 +173,8 @@ void PreferencesDialog::build(size_t selected_tab)
 		m_optgroup_general->append_single_option_line(option);
 #endif // _WIN32
 
+		m_optgroup_general->append_separator();
+
 		// Please keep in sync with ConfigWizard
 		def.label = L("Update built-in Presets automatically");
 		def.type = coBool;
@@ -165,6 +199,8 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "show_incompatible_presets");
 		m_optgroup_general->append_single_option_line(option);
 
+		m_optgroup_general->append_separator();
+
 		def.label = L("Show drop project dialog");
 		def.type = coBool;
 		def.tooltip = L("When checked, whenever dragging and dropping a project file on the application, shows a dialog asking to select the action to take on the file to load.");
@@ -172,7 +208,6 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "show_drop_project_dialog");
 		m_optgroup_general->append_single_option_line(option);
 
-		
 #if __APPLE__
 		def.label = L("Allow just a single PrusaSlicer instance");
 		def.type = coBool;
@@ -186,6 +221,8 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "single_instance");
 		m_optgroup_general->append_single_option_line(option);
 
+		m_optgroup_general->append_separator();
+
 		def.label = L("Ask for unsaved changes when closing application or loading new project");
 		def.type = coBool;
 		def.tooltip = L("Always ask for unsaved changes, when: \n"
@@ -230,6 +267,8 @@ void PreferencesDialog::build(size_t selected_tab)
 	m_optgroup_general->append_single_option_line(option);
 #endif
 
+	m_optgroup_general->append_separator();
+
     // Show/Hide splash screen
 	def.label = L("Show splash screen");
 	def.type = coBool;
@@ -291,7 +330,15 @@ void PreferencesDialog::build(size_t selected_tab)
 	m_optgroup_gui->m_on_change = [this, tabs](t_config_option_key opt_key, boost::any value) {
         if (opt_key == "suppress_hyperlinks")
             m_values[opt_key] = boost::any_cast<bool>(value) ? "1" : "";
-        else
+		else if (opt_key == "notify_release") {
+			int val_int = boost::any_cast<int>(value);
+			for (const auto& item : s_keys_map_NotifyReleaseMode) {
+				if (item.second == val_int) {
+					m_values[opt_key] = item.first;
+					break;
+				}
+			}
+		} else
             m_values[opt_key] = boost::any_cast<bool>(value) ? "1" : "0";
 
 		if (opt_key == "use_custom_toolbar_size") {
@@ -300,6 +347,8 @@ void PreferencesDialog::build(size_t selected_tab)
 			tabs->Layout();
 			this->layout();
 		}
+
+		
 	};
 
 	def.label = L("Sequential slider applied only to top layer");
@@ -361,7 +410,9 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "tabs_as_menu");
 		m_optgroup_gui->append_single_option_line(option);
 #endif
-		
+
+		m_optgroup_gui->append_separator();
+
 		def.label = L("Show \"Tip of the day\" notification after start");
 		def.type = coBool;
 		def.tooltip = L("If enabled, useful hints are displayed at startup.");
@@ -369,6 +420,24 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "show_hints");
 		m_optgroup_gui->append_single_option_line(option);
 
+		ConfigOptionDef def_enum;
+		def_enum.label = L("Notify about new releases");
+		def_enum.type = coEnum;
+		def_enum.tooltip = L("You will be notified about new release after startup acordingly: All = Regular release and alpha / beta releases. Release only = regular release.");
+		def_enum.enum_keys_map = &ConfigOptionEnum<NotifyReleaseMode>::get_enum_values();
+		def_enum.enum_values.push_back("all");
+		def_enum.enum_values.push_back("release");
+		def_enum.enum_values.push_back("none");
+		def_enum.enum_labels.push_back(L("All"));
+		def_enum.enum_labels.push_back(L("Release only"));
+		def_enum.enum_labels.push_back(L("None"));
+		def_enum.mode = comSimple;
+		def_enum.set_default_value(new ConfigOptionEnum<NotifyReleaseMode>(static_cast<NotifyReleaseMode>(s_keys_map_NotifyReleaseMode.at(app_config->get("notify_release")))));
+		option = Option(def_enum, "notify_release");
+		m_optgroup_gui->append_single_option_line(option);
+
+		m_optgroup_gui->append_separator();
+
 		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.");
@@ -376,15 +445,12 @@ void PreferencesDialog::build(size_t selected_tab)
 		option = Option(def, "use_custom_toolbar_size");
 		m_optgroup_gui->append_single_option_line(option);	
 
-		def.label = L("Notify about testing releases");
-		def.type = coBool;
-		def.tooltip = L("If enabled, you will be notified about alpha / beta releases available for download.");
-		def.set_default_value(new ConfigOptionBool{ app_config->get("notify_testing_release") == "1" });
-		option = Option(def, "notify_testing_release");
-		m_optgroup_gui->append_single_option_line(option);
 	}
 
 	activate_options_tab(m_optgroup_gui);
+	// set Field for notify_release to its value to activate the object
+	boost::any val = s_keys_map_NotifyReleaseMode.at(app_config->get("notify_release"));
+	m_optgroup_gui->get_field("notify_release")->set_value(val, false);
 
 	if (is_editor) {
 		create_icon_size_slider();
@@ -413,6 +479,9 @@ void PreferencesDialog::build(size_t selected_tab)
 	}
 #endif // ENABLE_ENVIRONMENT_MAP
 
+	// update alignment of the controls for all tabs
+	update_ctrls_alignment();
+
 	if (selected_tab < tabs->GetPageCount())
 		tabs->SetSelection(selected_tab);
 
@@ -432,6 +501,20 @@ void PreferencesDialog::build(size_t selected_tab)
 	this->CenterOnParent();
 }
 
+void PreferencesDialog::update_ctrls_alignment()
+{
+	int max_ctrl_width{ 0 };
+	std::initializer_list og_list = { m_optgroup_general.get(), m_optgroup_camera.get(), m_optgroup_gui.get() };
+	for (auto og : og_list) {
+		if (int max = og->custom_ctrl->get_max_win_width();
+			max_ctrl_width < max)
+			max_ctrl_width = max;
+	}
+	if (max_ctrl_width)
+		for (auto og : og_list)
+			og->custom_ctrl->set_max_win_width(max_ctrl_width);
+}
+
 void PreferencesDialog::accept(wxEvent&)
 {
 //	if (m_values.find("no_defaults") != m_values.end()

src/slic3r/GUI/Preferences.hpp

@@ -10,6 +10,13 @@
 class wxColourPickerCtrl;
 
 namespace Slic3r {
+
+	enum  NotifyReleaseMode {
+		NotifyReleaseAll,
+		NotifyReleaseOnly,
+		NotifyReleaseNone
+	};
+
 namespace GUI {
 
 class ConfigOptionsGroup;
@@ -39,6 +46,7 @@ public:
 	bool seq_top_layer_only_changed() const { return m_seq_top_layer_only_changed; }
 	bool recreate_GUI() const { return m_recreate_GUI; }
 	void	build(size_t selected_tab = 0);
+	void	update_ctrls_alignment();
 	void	accept(wxEvent&);
 
 protected:

src/slic3r/Utils/PresetUpdater.cpp

@@ -168,6 +168,7 @@ struct PresetUpdater::priv
 	bool get_file(const std::string &url, const fs::path &target_path) const;
 	void prune_tmps() const;
 	void sync_version() const;
+	void parse_version_string(const std::string& body) const;
 	void sync_config(const VendorMap vendors);
 
 	void check_install_indices() const;
@@ -263,60 +264,68 @@ void PresetUpdater::priv::sync_version() const
 		})
 		.on_complete([&](std::string body, unsigned /* http_status */) {
 			boost::trim(body);
-			// release version
+			parse_version_string(body);
-			std::string version;
+		})
-			const auto first_nl_pos = body.find_first_of("\n\r");
+		.perform_sync();
-			if (first_nl_pos != std::string::npos)
+}
-				version = body.substr(0,first_nl_pos);
+
-			else
+// Parses version string obtained in sync_version() and sends events to UI thread.
-				version = body;
+// Version string must contain release version on first line. Follows non-mandatory alpha / beta releases on following lines (alpha=2.0.0-alpha1).
-			if (! Semver::parse(version)) {
+void PresetUpdater::priv::parse_version_string(const std::string& body) const
-				BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
+{
+	// release version
+	std::string version;
+	const auto first_nl_pos = body.find_first_of("\n\r");
+	if (first_nl_pos != std::string::npos)
+		version = body.substr(0, first_nl_pos);
+	else
+		version = body;
+	if (!Semver::parse(version)) {
+		BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
+		return;
+	}
+	BOOST_LOG_TRIVIAL(info) << format("Got %1% online version: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
+	wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_VERSION_ONLINE);
+	evt->SetString(GUI::from_u8(version));
+	GUI::wxGetApp().QueueEvent(evt);
+
+	// alpha / beta version
+	size_t nexn_nl_pos = first_nl_pos;
+	while (nexn_nl_pos != std::string::npos && body.size() > nexn_nl_pos + 1) {
+		const auto last_nl_pos = nexn_nl_pos;
+		nexn_nl_pos = body.find_first_of("\n\r", last_nl_pos + 1);
+		std::string line;
+		if (nexn_nl_pos == std::string::npos)
+			line = body.substr(last_nl_pos + 1);
+		else
+			line = body.substr(last_nl_pos + 1, nexn_nl_pos - last_nl_pos - 1);
+
+		// alpha
+		if (line.substr(0, 6) == "alpha=") {
+			version = line.substr(6);
+			if (!Semver::parse(version)) {
+				BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents for alpha release from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
 				return;
 			}
-			BOOST_LOG_TRIVIAL(info) << format("Got %1% online version: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
+			BOOST_LOG_TRIVIAL(info) << format("Got %1% online version of alpha release: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
-			wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_VERSION_ONLINE);
+			wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_ALPHA_VERSION_ONLINE);
 			evt->SetString(GUI::from_u8(version));
 			GUI::wxGetApp().QueueEvent(evt);
 
-			// alpha / beta version
+		// beta
-			size_t nexn_nl_pos = first_nl_pos;
+		}
- 			while (nexn_nl_pos != std::string::npos && body.size() > nexn_nl_pos + 1) {
+		else if (line.substr(0, 5) == "beta=") {
-				const auto last_nl_pos = nexn_nl_pos;
+			version = line.substr(5);
-				nexn_nl_pos = body.find_first_of("\n\r", last_nl_pos + 1);
+			if (!Semver::parse(version)) {
-				std::string line;
+				BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents for beta release from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
-				if (nexn_nl_pos == std::string::npos)
+				return;
-					line = body.substr(last_nl_pos + 1);
-				else
-					line = body.substr(last_nl_pos + 1, nexn_nl_pos - last_nl_pos - 1);
-
-				// alpha
-				if (line.substr(0, 6) == "alpha=") {
-					version = line.substr(6);
-					if (!Semver::parse(version)) {
-						BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents for alpha release from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
-						return;
-					}
-					BOOST_LOG_TRIVIAL(info) << format("Got %1% online version of alpha release: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
-					wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_ALPHA_VERSION_ONLINE);
-					evt->SetString(GUI::from_u8(version));
-					GUI::wxGetApp().QueueEvent(evt);
-
-				// beta
-				} else if (line.substr(0, 5) == "beta=") {
-					version = line.substr(5);
-					if (!Semver::parse(version)) {
-						BOOST_LOG_TRIVIAL(warning) << format("Received invalid contents for beta release from `%1%`: Not a correct semver: `%2%`", SLIC3R_APP_NAME, version);
-						return;
-					}
-					BOOST_LOG_TRIVIAL(info) << format("Got %1% online version of beta release: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
-					wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_BETA_VERSION_ONLINE);
-					evt->SetString(GUI::from_u8(version));
-					GUI::wxGetApp().QueueEvent(evt);
-				}
 			}
-		})
+			BOOST_LOG_TRIVIAL(info) << format("Got %1% online version of beta release: `%2%`. Sending to GUI thread...", SLIC3R_APP_NAME, version);
-		.perform_sync();
+			wxCommandEvent* evt = new wxCommandEvent(EVT_SLIC3R_BETA_VERSION_ONLINE);
+			evt->SetString(GUI::from_u8(version));
+			GUI::wxGetApp().QueueEvent(evt);
+		}
+	}
 }
 
 // Download vendor indices. Also download new bundles if an index indicates there's a new one available.