PrusaSlicer-NonPlainar/xs/src/slic3r/GUI/Tab.cpp

#include "../../libslic3r/GCodeSender.hpp"
#include "Tab.hpp"
#include "PresetBundle.hpp"
#include "PresetHints.hpp"
#include "../../libslic3r/Utils.hpp"

#include "slic3r/Utils/Http.hpp"
#include "slic3r/Utils/OctoPrint.hpp"
#include "BonjourDialog.hpp"
#include "WipeTowerDialog.hpp"
#include "ButtonsDescription.hpp"

#include <wx/app.h>
#include <wx/button.h>
#include <wx/scrolwin.h>
#include <wx/sizer.h>

#include <wx/bmpcbox.h>
#include <wx/bmpbuttn.h>
#include <wx/treectrl.h>
#include <wx/imaglist.h>
#include <wx/settings.h>
#include <wx/filedlg.h>

#include <boost/algorithm/string/predicate.hpp>
#include "wxExtensions.hpp"
#include <wx/wupdlock.h>

#include <chrono>

namespace Slic3r {
namespace GUI {

// sub new
void Tab::create_preset_tab(PresetBundle *preset_bundle)
{
	m_preset_bundle = preset_bundle;

	// Vertical sizer to hold the choice menu and the rest of the page.
	Tab *panel = this;
	auto  *sizer = new wxBoxSizer(wxVERTICAL);
	sizer->SetSizeHints(panel);
	panel->SetSizer(sizer);

	// preset chooser
	m_presets_choice = new wxBitmapComboBox(panel, wxID_ANY, "", wxDefaultPosition, wxSize(270, -1), 0, 0,wxCB_READONLY);
	/*
	m_cc_presets_choice = new wxComboCtrl(panel, wxID_ANY, L(""), wxDefaultPosition, wxDefaultSize, wxCB_READONLY);
	wxDataViewTreeCtrlComboPopup* popup = new wxDataViewTreeCtrlComboPopup;
	if (popup != nullptr)
	{
		// FIXME If the following line is removed, the combo box popup list will not react to mouse clicks.
		//  On the other side, with this line the combo box popup cannot be closed by clicking on the combo button on Windows 10.
//		m_cc_presets_choice->UseAltPopupWindow();

//		m_cc_presets_choice->EnablePopupAnimation(false);
		m_cc_presets_choice->SetPopupControl(popup);
		popup->SetStringValue(from_u8("Text1"));

		popup->Bind(wxEVT_DATAVIEW_SELECTION_CHANGED, [this, popup](wxCommandEvent& evt)
		{
			auto selected = popup->GetItemText(popup->GetSelection());
			if (selected != _(L("System presets")) && selected != _(L("Default presets")))
			{
				m_cc_presets_choice->SetText(selected);
				std::string selected_string = selected.ToUTF8().data();
#ifdef __APPLE__
#else
 				select_preset(selected_string);
#endif
			}				
		});

// 		popup->Bind(wxEVT_KEY_DOWN, [popup](wxKeyEvent& evt) { popup->OnKeyEvent(evt); });
// 		popup->Bind(wxEVT_KEY_UP, [popup](wxKeyEvent& evt) { popup->OnKeyEvent(evt); });

		auto icons = new wxImageList(16, 16, true, 1);
		popup->SetImageList(icons);
		icons->Add(*new wxIcon(from_u8(Slic3r::var("flag-green-icon.png")), wxBITMAP_TYPE_PNG));
		icons->Add(*new wxIcon(from_u8(Slic3r::var("flag-red-icon.png")), wxBITMAP_TYPE_PNG));
	}
*/
	auto color = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);

	//buttons
	wxBitmap bmpMenu;
	bmpMenu = wxBitmap(from_u8(Slic3r::var("disk.png")), wxBITMAP_TYPE_PNG);
	m_btn_save_preset = new wxBitmapButton(panel, wxID_ANY, bmpMenu, wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
	if (wxMSW) m_btn_save_preset->SetBackgroundColour(color);
	bmpMenu = wxBitmap(from_u8(Slic3r::var("delete.png")), wxBITMAP_TYPE_PNG);
	m_btn_delete_preset = new wxBitmapButton(panel, wxID_ANY, bmpMenu, wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
	if (wxMSW) m_btn_delete_preset->SetBackgroundColour(color);

	m_show_incompatible_presets = false;
	m_bmp_show_incompatible_presets.LoadFile(from_u8(Slic3r::var("flag-red-icon.png")), wxBITMAP_TYPE_PNG);
	m_bmp_hide_incompatible_presets.LoadFile(from_u8(Slic3r::var("flag-green-icon.png")), wxBITMAP_TYPE_PNG);
	m_btn_hide_incompatible_presets = new wxBitmapButton(panel, wxID_ANY, m_bmp_hide_incompatible_presets, wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
	if (wxMSW) m_btn_hide_incompatible_presets->SetBackgroundColour(color);

	m_btn_save_preset->SetToolTip(_(L("Save current ")) + m_title);
	m_btn_delete_preset->SetToolTip(_(L("Delete this preset")));
	m_btn_delete_preset->Disable();

	m_undo_btn = new wxButton(panel, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT | wxNO_BORDER);
	m_undo_to_sys_btn = new wxButton(panel, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT | wxNO_BORDER);
	m_question_btn = new wxButton(panel, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT | wxNO_BORDER);
// 	m_undo_btns_legent = new wxStaticText(panel, wxID_ANY, _(L("For more information about buttons hover the mouse cursor over them.")), wxDefaultPosition, wxDefaultSize);
	if (wxMSW) {
		m_undo_btn->SetBackgroundColour(color);
		m_undo_to_sys_btn->SetBackgroundColour(color);
		m_question_btn->SetBackgroundColour(color);
	}

	m_undo_to_sys_btn->SetToolTip(_(L(	"UNLOCKED LOCK icon indicates about some value changes compared with system values "
										"in current option group.\n"
										"LOCKED LOCK icon indicates about same values compared with system values "
										"in current option group.\n"
										"WHITE BULLET icon indicates about nonsystem preset.\n\n"
										"Click the UNLOCKED LOCK to revert all values in current option group to system values.")));

	m_undo_btn->SetToolTip(_(L(	"BACK ARROW icon indicates about some value changes compared with last saved preset values "
								"in current option group.\n"
								"WHITE BULLET icon indicates about same values compared with last saved preset values "
								"in current option group.\n\n"
								"Click the BACK ARROW to revert all values in current option group to last saved preset values.")));

	m_question_btn->SetToolTip(_(L("Hover the cursor over buttons to find more information.")));

	// Determine the theme color of OS (dark or light)
	auto luma = get_colour_approx_luma(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
	// Bitmaps to be shown on the "Revert to system" aka "Lock to system" button next to each input field.
	m_bmp_value_lock  	  .LoadFile(from_u8(var("sys_lock.png")),     wxBITMAP_TYPE_PNG);
	m_bmp_value_unlock    .LoadFile(from_u8(var(luma >= 128 ? "sys_unlock.png" : "sys_unlock_grey.png")), wxBITMAP_TYPE_PNG);
	m_bmp_non_system = &m_bmp_white_bullet;
	// Bitmaps to be shown on the "Undo user changes" button next to each input field.
	m_bmp_value_revert    .LoadFile(from_u8(var(luma >= 128 ? "action_undo.png" : "action_undo_grey.png")), wxBITMAP_TYPE_PNG);
	m_bmp_white_bullet    .LoadFile(from_u8(var("bullet_white.png")), wxBITMAP_TYPE_PNG);
	m_bmp_question        .LoadFile(from_u8(var("question_mark_01.png")), wxBITMAP_TYPE_PNG);

	fill_icon_descriptions();

	m_undo_btn->SetBitmap(m_bmp_white_bullet);
	m_undo_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent){ on_roll_back_value(); }));
	m_undo_to_sys_btn->SetBitmap(m_bmp_white_bullet);
	m_undo_to_sys_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent){ on_roll_back_value(true); }));
	m_question_btn->SetBitmap(m_bmp_question);
	m_question_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent)
	{
		auto dlg = new ButtonsDescription(this, &m_icon_descriptions);
		dlg->ShowModal();
	}));

	// Colors for ui "decoration"
	m_sys_label_clr			= get_sys_label_clr();
	m_modified_label_clr	= get_modified_label_clr();
	m_default_text_clr		= get_default_label_clr();

	m_hsizer = new wxBoxSizer(wxHORIZONTAL);
	sizer->Add(m_hsizer, 0, wxBOTTOM, 3);
	m_hsizer->Add(m_presets_choice, 1, wxLEFT | wxRIGHT | wxTOP | wxALIGN_CENTER_VERTICAL, 3);
	m_hsizer->AddSpacer(4);
	m_hsizer->Add(m_btn_save_preset, 0, wxALIGN_CENTER_VERTICAL);
	m_hsizer->AddSpacer(4);
	m_hsizer->Add(m_btn_delete_preset, 0, wxALIGN_CENTER_VERTICAL);
	m_hsizer->AddSpacer(16);
	m_hsizer->Add(m_btn_hide_incompatible_presets, 0, wxALIGN_CENTER_VERTICAL);
	m_hsizer->AddSpacer(64);
	m_hsizer->Add(m_undo_to_sys_btn, 0, wxALIGN_CENTER_VERTICAL);
	m_hsizer->Add(m_undo_btn, 0, wxALIGN_CENTER_VERTICAL);
	m_hsizer->AddSpacer(32);
	m_hsizer->Add(m_question_btn, 0, wxALIGN_CENTER_VERTICAL);
// 	m_hsizer->Add(m_undo_btns_legent, 0, wxALIGN_CENTER_VERTICAL);
// 	m_hsizer->AddSpacer(64);
// 	m_hsizer->Add(m_cc_presets_choice, 1, wxLEFT | wxRIGHT | wxTOP | wxALIGN_CENTER_VERTICAL, 3);

	//Horizontal sizer to hold the tree and the selected page.
	m_hsizer = new wxBoxSizer(wxHORIZONTAL);
	sizer->Add(m_hsizer, 1, wxEXPAND, 0);


/*


	//temporary left vertical sizer
	m_left_sizer = new wxBoxSizer(wxVERTICAL);
	m_hsizer->Add(m_left_sizer, 0, wxEXPAND | wxLEFT | wxTOP | wxBOTTOM, 3);

	// tree
	m_presetctrl = new wxDataViewTreeCtrl(panel, wxID_ANY, wxDefaultPosition, wxSize(200, -1), wxDV_NO_HEADER);
	m_left_sizer->Add(m_presetctrl, 1, wxEXPAND);
	m_preset_icons = new wxImageList(16, 16, true, 1);
	m_presetctrl->SetImageList(m_preset_icons);
	m_preset_icons->Add(*new wxIcon(from_u8(Slic3r::var("flag-green-icon.png")), wxBITMAP_TYPE_PNG));
	m_preset_icons->Add(*new wxIcon(from_u8(Slic3r::var("flag-red-icon.png")), wxBITMAP_TYPE_PNG));

	m_presetctrl->Bind(wxEVT_DATAVIEW_SELECTION_CHANGED, [this](wxCommandEvent& evt)
	{
		auto selected = m_presetctrl->GetItemText(m_presetctrl->GetSelection());
		if (selected != _(L("System presets")) && selected != _(L("Default presets")))
		{
			std::string selected_string = selected.ToUTF8().data();
#ifdef __APPLE__
#else
			select_preset(selected_string);
#endif
		}
	});

*/

	//left vertical sizer
	m_left_sizer = new wxBoxSizer(wxVERTICAL);
	m_hsizer->Add(m_left_sizer, 0, wxEXPAND | wxLEFT | wxTOP | wxBOTTOM, 3);

	// tree
	m_treectrl = new wxTreeCtrl(panel, wxID_ANY, wxDefaultPosition, wxSize(185, -1), 
		wxTR_NO_BUTTONS | wxTR_HIDE_ROOT | wxTR_SINGLE | wxTR_NO_LINES | wxBORDER_SUNKEN | wxWANTS_CHARS);
	m_left_sizer->Add(m_treectrl, 1, wxEXPAND);
	m_icons = new wxImageList(16, 16, true, 1);
	// Index of the last icon inserted into $self->{icons}.
	m_icon_count = -1;
	m_treectrl->AssignImageList(m_icons);
	m_treectrl->AddRoot("root");
	m_treectrl->SetIndent(0);
	m_disable_tree_sel_changed_event = 0;

	m_treectrl->Bind(wxEVT_TREE_SEL_CHANGED, &Tab::OnTreeSelChange, this);
	m_treectrl->Bind(wxEVT_KEY_DOWN, &Tab::OnKeyDown, this);

	m_presets_choice->Bind(wxEVT_COMBOBOX, ([this](wxCommandEvent e){
		//! Because of The MSW and GTK version of wxBitmapComboBox derived from wxComboBox, 
		//! but the OSX version derived from wxOwnerDrawnCombo, instead of:
		//! select_preset(m_presets_choice->GetStringSelection().ToStdString()); 
		//! we doing next:
		int selected_item = m_presets_choice->GetSelection();
		if (m_selected_preset_item == selected_item)
			return;
		if (selected_item >= 0){
			std::string selected_string = m_presets_choice->GetString(selected_item).ToUTF8().data();
			if (selected_string == "------- System presets -------" ||
				selected_string == "-------  User presets  -------"){
				m_presets_choice->SetSelection(m_selected_preset_item);
				return;
			}
			m_selected_preset_item = selected_item;
			select_preset(selected_string);
		}
	}));

	m_btn_save_preset->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e){ save_preset(); }));
	m_btn_delete_preset->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e){ delete_preset(); }));
	m_btn_hide_incompatible_presets->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e){
		toggle_show_hide_incompatible();
	}));

	// Initialize the DynamicPrintConfig by default keys/values.
	build();
	rebuild_page_tree();
	update();
}

void Tab::load_initial_data()
{
	m_config = &m_presets->get_edited_preset().config;
	m_bmp_non_system = m_presets->get_selected_preset_parent() ? &m_bmp_value_unlock : &m_bmp_white_bullet;
}

PageShp Tab::add_options_page(const wxString& title, const std::string& icon, bool is_extruder_pages/* = false*/)
{
	// Index of icon in an icon list $self->{icons}.
	auto icon_idx = 0;
	if (!icon.empty()) {
		icon_idx = (m_icon_index.find(icon) == m_icon_index.end()) ? -1 : m_icon_index.at(icon);
		if (icon_idx == -1) {
			// Add a new icon to the icon list.
			const auto img_icon = new wxIcon(from_u8(Slic3r::var(icon)), wxBITMAP_TYPE_PNG);
			m_icons->Add(*img_icon);
			icon_idx = ++m_icon_count;
			m_icon_index[icon] = icon_idx;
		}
	}
	// Initialize the page.
	PageShp page(new Page(this, title, icon_idx));
	page->SetScrollbars(1, 1, 1, 1);
	page->Hide();
	m_hsizer->Add(page.get(), 1, wxEXPAND | wxLEFT, 5);
	if (!is_extruder_pages) 
		m_pages.push_back(page);

	page->set_config(m_config);
	return page;
}

// Update UI according to changes
void Tab::update_changed_ui()
{
	if (m_postpone_update_ui) 
		return;

	const bool is_printer_type = (name() == "printer");
	auto dirty_options = m_presets->current_dirty_options(is_printer_type);
	auto nonsys_options = m_presets->current_different_from_parent_options(is_printer_type);
	if (is_printer_type){
		TabPrinter* tab = static_cast<TabPrinter*>(this);
		if (tab->m_initial_extruders_count != tab->m_extruders_count)
			dirty_options.emplace_back("extruders_count");
		if (tab->m_sys_extruders_count != tab->m_extruders_count)
			nonsys_options.emplace_back("extruders_count");
	}

	for (auto& it : m_options_list)
		it.second = m_opt_status_value;

	for (auto opt_key : dirty_options)	m_options_list[opt_key] &= ~osInitValue;
	for (auto opt_key : nonsys_options)	m_options_list[opt_key] &= ~osSystemValue;

	Freeze();
	//update options "decoration"
	for (const auto opt : m_options_list)
	{
		bool is_nonsys_value = false;
		bool is_modified_value = true;
		const wxBitmap *sys_icon = &m_bmp_value_lock;
		const wxBitmap *icon = &m_bmp_value_revert;
		const wxColour *color = &m_sys_label_clr;

		if ((opt.second & osSystemValue) == 0){
			is_nonsys_value = true;
			sys_icon = m_bmp_non_system;
			if ((opt.second & osInitValue) != 0)
				color = &m_default_text_clr;
			else
				color = &m_modified_label_clr;
		}
		if ((opt.second & osInitValue) != 0)
		{
			is_modified_value = false;
			icon = &m_bmp_white_bullet;
		}
		if (opt.first == "bed_shape" || opt.first == "compatible_printers") {
			if (m_colored_Label != nullptr)	{
				m_colored_Label->SetForegroundColour(*color);
				m_colored_Label->Refresh(true);
			}
			continue;
		}

		Field* field = get_field(opt.first);
		if (field == nullptr) continue;
		field->m_is_nonsys_value = is_nonsys_value;
		field->m_is_modified_value = is_modified_value;
		field->set_undo_bitmap(icon);
		field->set_undo_to_sys_bitmap(sys_icon);
		field->set_label_colour(color);
	}
	Thaw();

	wxTheApp->CallAfter([this]() {
		update_changed_tree_ui();
	});
}

void Tab::init_options_list()
{
	if (!m_options_list.empty())
		m_options_list.clear();

	for (const auto opt_key : m_config->keys())
		m_options_list.emplace(opt_key, m_opt_status_value);
}

template<class T>
void add_correct_opts_to_options_list(const std::string &opt_key, std::map<std::string, int>& map, TabPrinter *tab, const int& value)
{
	T *opt_cur = static_cast<T*>(tab->m_config->option(opt_key));
	for (int i = 0; i < opt_cur->values.size(); i++)
		map.emplace(opt_key + "#" + std::to_string(i), value);
}

void TabPrinter::init_options_list()
{
	if (!m_options_list.empty())
		m_options_list.clear();

	for (const auto opt_key : m_config->keys())
	{
		if (opt_key == "bed_shape"){
			m_options_list.emplace(opt_key, m_opt_status_value);
			continue;
		}
		switch (m_config->option(opt_key)->type())
		{
		case coInts:	add_correct_opts_to_options_list<ConfigOptionInts		>(opt_key, m_options_list, this, m_opt_status_value);	break;
		case coBools:	add_correct_opts_to_options_list<ConfigOptionBools		>(opt_key, m_options_list, this, m_opt_status_value);	break;
		case coFloats:	add_correct_opts_to_options_list<ConfigOptionFloats		>(opt_key, m_options_list, this, m_opt_status_value);	break;
		case coStrings:	add_correct_opts_to_options_list<ConfigOptionStrings	>(opt_key, m_options_list, this, m_opt_status_value);	break;
		case coPercents:add_correct_opts_to_options_list<ConfigOptionPercents	>(opt_key, m_options_list, this, m_opt_status_value);	break;
		case coPoints:	add_correct_opts_to_options_list<ConfigOptionPoints		>(opt_key, m_options_list, this, m_opt_status_value);	break;
		default:		m_options_list.emplace(opt_key, m_opt_status_value);		break;
		}
	}
	m_options_list.emplace("extruders_count", m_opt_status_value);
}

void Tab::get_sys_and_mod_flags(const std::string& opt_key, bool& sys_page, bool& modified_page)
{
	auto opt = m_options_list.find(opt_key);
	if (sys_page) sys_page = (opt->second & osSystemValue) != 0;
	if (!modified_page) modified_page = (opt->second & osInitValue) == 0;
}

void Tab::update_changed_tree_ui()
{
	auto cur_item = m_treectrl->GetFirstVisibleItem();
	auto selection = m_treectrl->GetItemText(m_treectrl->GetSelection());
	while (cur_item){
		auto title = m_treectrl->GetItemText(cur_item);
		for (auto page : m_pages)
		{
			if (page->title() != title)
				continue;
			bool sys_page = true;
			bool modified_page = false;
			if (title == _("General")){
				std::initializer_list<const char*> optional_keys{ "extruders_count", "bed_shape" };
				for (auto &opt_key : optional_keys) {
					get_sys_and_mod_flags(opt_key, sys_page, modified_page);
				}
			}
			if (title == _("Dependencies") && name() != "printer"){
				get_sys_and_mod_flags("compatible_printers", sys_page, modified_page);
			}
			for (auto group : page->m_optgroups)
			{
				if (!sys_page && modified_page)
					break;
				for (t_opt_map::iterator it = group->m_opt_map.begin(); it != group->m_opt_map.end(); ++it) {
					const std::string& opt_key = it->first;
					get_sys_and_mod_flags(opt_key, sys_page, modified_page);
				}
			}

			const wxColor *clr = sys_page		?	&m_sys_label_clr :
								 modified_page	?	&m_modified_label_clr : 
													&m_default_text_clr;

			if (page->set_item_colour(clr))
				m_treectrl->SetItemTextColour(cur_item, *clr);

			page->m_is_nonsys_values = !sys_page;
			page->m_is_modified_values = modified_page;

			if (selection == title){
				m_is_nonsys_values = page->m_is_nonsys_values;
				m_is_modified_values = page->m_is_modified_values;
			}
			break;
		}
		auto next_item = m_treectrl->GetNextVisible(cur_item);
		cur_item = next_item;
	}
	update_undo_buttons();
}

void Tab::update_undo_buttons()
{
	m_undo_btn->SetBitmap(m_is_modified_values ? m_bmp_value_revert : m_bmp_white_bullet);
	m_undo_to_sys_btn->SetBitmap(m_is_nonsys_values ? *m_bmp_non_system : m_bmp_value_lock);
}

void Tab::on_roll_back_value(const bool to_sys /*= true*/)
{
	int os;
	if (to_sys)	{
		if (!m_is_nonsys_values) return;
		os = osSystemValue;
	}
	else {
		if (!m_is_modified_values) return;
		os = osInitValue;
	}

	m_postpone_update_ui = true;

	auto selection = m_treectrl->GetItemText(m_treectrl->GetSelection());
	for (auto page : m_pages)
		if (page->title() == selection)	{
			for (auto group : page->m_optgroups){
				if (group->title == _("Capabilities")){
					if ((m_options_list["extruders_count"] & os) == 0)
						to_sys ? group->back_to_sys_value("extruders_count") : group->back_to_initial_value("extruders_count");
				}
				if (group->title == _("Size and coordinates")){
					if ((m_options_list["bed_shape"] & os) == 0){
						to_sys ? group->back_to_sys_value("bed_shape") : group->back_to_initial_value("bed_shape");
						load_key_value("bed_shape", true/*some value*/, true);
					}

				}
				if (group->title == _("Profile dependencies") && name() != "printer"){
					if ((m_options_list["compatible_printers"] & os) == 0){
						to_sys ? group->back_to_sys_value("compatible_printers") : group->back_to_initial_value("compatible_printers");
						load_key_value("compatible_printers", true/*some value*/, true);

						bool is_empty = m_config->option<ConfigOptionStrings>("compatible_printers")->values.empty();
						m_compatible_printers_checkbox->SetValue(is_empty);
						is_empty ? m_compatible_printers_btn->Disable() : m_compatible_printers_btn->Enable();
					}
				}
				for (t_opt_map::iterator it = group->m_opt_map.begin(); it != group->m_opt_map.end(); ++it) {
					const std::string& opt_key = it->first;
					if ((m_options_list[opt_key] & os) == 0)
						to_sys ? group->back_to_sys_value(opt_key) : group->back_to_initial_value(opt_key);
				}
			}
			break;
		}

	m_postpone_update_ui = false;
	update_changed_ui();
}

// Update the combo box label of the selected preset based on its "dirty" state,
// comparing the selected preset config with $self->{config}.
void Tab::update_dirty(){
	m_presets->update_dirty_ui(m_presets_choice);
	on_presets_changed();	
	update_changed_ui();
//	update_dirty_presets(m_cc_presets_choice);
}

void Tab::update_tab_ui()
{
	m_selected_preset_item = m_presets->update_tab_ui(m_presets_choice, m_show_incompatible_presets);
// 	update_tab_presets(m_cc_presets_choice, m_show_incompatible_presets);
// 	update_presetsctrl(m_presetctrl, m_show_incompatible_presets);
}

// Load a provied DynamicConfig into the tab, modifying the active preset.
// This could be used for example by setting a Wipe Tower position by interactive manipulation in the 3D view.
void Tab::load_config(const DynamicPrintConfig& config)
{
	bool modified = 0;
	for(auto opt_key : m_config->diff(config)) {
		m_config->set_key_value(opt_key, config.option(opt_key)->clone());
		modified = 1;
	}
	if (modified) {
		update_dirty();
		//# Initialize UI components with the config values.
		reload_config();
		update();
	}
}

// Reload current $self->{config} (aka $self->{presets}->edited_preset->config) into the UI fields.
void Tab::reload_config(){
	Freeze();
	for (auto page : m_pages)
		page->reload_config();
 	Thaw();
}

Field* Tab::get_field(const t_config_option_key& opt_key, int opt_index/* = -1*/) const
{
	Field* field = nullptr;
	for (auto page : m_pages){
		field = page->get_field(opt_key, opt_index);
		if (field != nullptr)
			return field;
	}
	return field;
}

// Set a key/value pair on this page. Return true if the value has been modified.
// Currently used for distributing extruders_count over preset pages of Slic3r::GUI::Tab::Printer
// after a preset is loaded.
bool Tab::set_value(const t_config_option_key& opt_key, const boost::any& value){
	bool changed = false;
	for(auto page: m_pages) {
		if (page->set_value(opt_key, value))
		changed = true;
	}
	return changed;
}

// To be called by custom widgets, load a value into a config,
// update the preset selection boxes (the dirty flags)
// If value is saved before calling this function, put saved_value = true,
// and value can be some random value because in this case it will not been used
void Tab::load_key_value(const std::string& opt_key, const boost::any& value, bool saved_value /*= false*/)
{
	if (!saved_value) change_opt_value(*m_config, opt_key, value);
	// Mark the print & filament enabled if they are compatible with the currently selected preset.
	if (opt_key.compare("compatible_printers") == 0) {
		m_preset_bundle->update_compatible_with_printer(0);
	} 
	m_presets->update_dirty_ui(m_presets_choice);
	on_presets_changed();
	update();
}

extern wxFrame *g_wxMainFrame;

void Tab::on_value_change(const std::string& opt_key, const boost::any& value)
{
	if (m_event_value_change > 0) {
		wxCommandEvent event(m_event_value_change);
		std::string str_out = opt_key + " " + m_name;
		event.SetString(str_out);
		if (opt_key == "extruders_count")
		{
			int val = boost::any_cast<size_t>(value);
			event.SetInt(val);
		}
		g_wxMainFrame->ProcessWindowEvent(event);
	}
	if (opt_key == "fill_density")
	{
		boost::any val = get_optgroup()->get_config_value(*m_config, opt_key);
		get_optgroup()->set_value(opt_key, val);
	}
	if (opt_key == "support_material" || opt_key == "support_material_buildplate_only")
	{
		wxString new_selection = !m_config->opt_bool("support_material") ?
								_("None") :
								m_config->opt_bool("support_material_buildplate_only") ?
									_("Support on build plate only") :
									_("Everywhere");
		get_optgroup()->set_value("support", new_selection);
	}
	if (opt_key == "brim_width")
	{
		bool val = m_config->opt_float("brim_width") > 0.0 ? true : false;
		get_optgroup()->set_value("brim", val);
	}

    if (opt_key == "wipe_tower" || opt_key == "single_extruder_multi_material" || opt_key == "extruders_count" )
        update_wiping_button_visibility();

	update();
}


// Show/hide the 'purging volumes' button
void Tab::update_wiping_button_visibility() {
    bool wipe_tower_enabled = dynamic_cast<ConfigOptionBool*>(  (m_preset_bundle->prints.get_edited_preset().config  ).option("wipe_tower"))->value;
    bool multiple_extruders = dynamic_cast<ConfigOptionFloats*>((m_preset_bundle->printers.get_edited_preset().config).option("nozzle_diameter"))->values.size() > 1;
    bool single_extruder_mm = dynamic_cast<ConfigOptionBool*>(  (m_preset_bundle->printers.get_edited_preset().config).option("single_extruder_multi_material"))->value;

    if (wipe_tower_enabled && multiple_extruders && single_extruder_mm)
        get_wiping_dialog_button()->Show();
    else get_wiping_dialog_button()->Hide();

    (get_wiping_dialog_button()->GetParent())->Layout();
}


// Call a callback to update the selection of presets on the platter:
// To update the content of the selection boxes,
// to update the filament colors of the selection boxes,
// to update the "dirty" flags of the selection boxes,
// to uddate number of "filament" selection boxes when the number of extruders change.
void Tab::on_presets_changed()
{
	if (m_event_presets_changed > 0) {
		wxCommandEvent event(m_event_presets_changed);
		event.SetString(m_name);
		g_wxMainFrame->ProcessWindowEvent(event);
	}

	const Preset* parent = m_presets->get_selected_preset_parent();
	const wxString description_line = parent == nullptr ?
		_(L("It's default preset")) : parent == &m_presets->get_selected_preset() ?
		_(L("It's system preset")) :
		_(L("Current preset is inherited from")) + ":\n" + parent->name;
	m_parent_preset_description_line->SetText(description_line);
}

void Tab::update_frequently_changed_parameters()
{
	boost::any value = get_optgroup()->get_config_value(*m_config, "fill_density");
	get_optgroup()->set_value("fill_density", value);

	wxString new_selection = !m_config->opt_bool("support_material") ?
							_("None") :
							m_config->opt_bool("support_material_buildplate_only") ?
								_("Support on build plate only") :
								_("Everywhere");
	get_optgroup()->set_value("support", new_selection);

	bool val = m_config->opt_float("brim_width") > 0.0 ? true : false;
	get_optgroup()->set_value("brim", val);

	update_wiping_button_visibility();
}

void Tab::reload_compatible_printers_widget()
{
	bool has_any = !m_config->option<ConfigOptionStrings>("compatible_printers")->values.empty();
	has_any ? m_compatible_printers_btn->Enable() : m_compatible_printers_btn->Disable();
	m_compatible_printers_checkbox->SetValue(!has_any);
	get_field("compatible_printers_condition")->toggle(!has_any);
}

void TabPrint::build()
{
	m_presets = &m_preset_bundle->prints;
	load_initial_data();

	auto page = add_options_page(_(L("Layers and perimeters")), "layers.png");
		auto optgroup = page->new_optgroup(_(L("Layer height")));
		optgroup->append_single_option_line("layer_height");
		optgroup->append_single_option_line("first_layer_height");

		optgroup = page->new_optgroup(_(L("Vertical shells")));
		optgroup->append_single_option_line("perimeters");
		optgroup->append_single_option_line("spiral_vase");

		Line line { "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_recommended_thin_wall_thickness_description_line);
		};
		optgroup->append_line(line);

		optgroup = page->new_optgroup(_(L("Horizontal shells")));
		line = { _(L("Solid layers")), "" };
		line.append_option(optgroup->get_option("top_solid_layers"));
		line.append_option(optgroup->get_option("bottom_solid_layers"));
		optgroup->append_line(line);

		optgroup = page->new_optgroup(_(L("Quality (slower slicing)")));
		optgroup->append_single_option_line("extra_perimeters");
		optgroup->append_single_option_line("ensure_vertical_shell_thickness");
		optgroup->append_single_option_line("avoid_crossing_perimeters");
		optgroup->append_single_option_line("thin_walls");
		optgroup->append_single_option_line("overhangs");

		optgroup = page->new_optgroup(_(L("Advanced")));
		optgroup->append_single_option_line("seam_position");
		optgroup->append_single_option_line("external_perimeters_first");

	page = add_options_page(_(L("Infill")), "infill.png");
		optgroup = page->new_optgroup(_(L("Infill")));
		optgroup->append_single_option_line("fill_density");
		optgroup->append_single_option_line("fill_pattern");
		optgroup->append_single_option_line("external_fill_pattern");

		optgroup = page->new_optgroup(_(L("Reducing printing time")));
		optgroup->append_single_option_line("infill_every_layers");
		optgroup->append_single_option_line("infill_only_where_needed");

		optgroup = page->new_optgroup(_(L("Advanced")));
		optgroup->append_single_option_line("solid_infill_every_layers");
		optgroup->append_single_option_line("fill_angle");
		optgroup->append_single_option_line("solid_infill_below_area");
		optgroup->append_single_option_line("bridge_angle");
		optgroup->append_single_option_line("only_retract_when_crossing_perimeters");
		optgroup->append_single_option_line("infill_first");

	page = add_options_page(_(L("Skirt and brim")), "box.png");
		optgroup = page->new_optgroup(_(L("Skirt")));
		optgroup->append_single_option_line("skirts");
		optgroup->append_single_option_line("skirt_distance");
		optgroup->append_single_option_line("skirt_height");
		optgroup->append_single_option_line("min_skirt_length");

		optgroup = page->new_optgroup(_(L("Brim")));
		optgroup->append_single_option_line("brim_width");

	page = add_options_page(_(L("Support material")), "building.png");
		optgroup = page->new_optgroup(_(L("Support material")));
		optgroup->append_single_option_line("support_material");
		optgroup->append_single_option_line("support_material_threshold");
		optgroup->append_single_option_line("support_material_enforce_layers");

		optgroup = page->new_optgroup(_(L("Raft")));
		optgroup->append_single_option_line("raft_layers");
//		# optgroup->append_single_option_line(get_option_("raft_contact_distance");

		optgroup = page->new_optgroup(_(L("Options for support material and raft")));
		optgroup->append_single_option_line("support_material_contact_distance");
		optgroup->append_single_option_line("support_material_pattern");
		optgroup->append_single_option_line("support_material_with_sheath");
		optgroup->append_single_option_line("support_material_spacing");
		optgroup->append_single_option_line("support_material_angle");
		optgroup->append_single_option_line("support_material_interface_layers");
		optgroup->append_single_option_line("support_material_interface_spacing");
		optgroup->append_single_option_line("support_material_interface_contact_loops");
		optgroup->append_single_option_line("support_material_buildplate_only");
		optgroup->append_single_option_line("support_material_xy_spacing");
		optgroup->append_single_option_line("dont_support_bridges");
		optgroup->append_single_option_line("support_material_synchronize_layers");

	page = add_options_page(_(L("Speed")), "time.png");
		optgroup = page->new_optgroup(_(L("Speed for print moves")));
		optgroup->append_single_option_line("perimeter_speed");
		optgroup->append_single_option_line("small_perimeter_speed");
		optgroup->append_single_option_line("external_perimeter_speed");
		optgroup->append_single_option_line("infill_speed");
		optgroup->append_single_option_line("solid_infill_speed");
		optgroup->append_single_option_line("top_solid_infill_speed");
		optgroup->append_single_option_line("support_material_speed");
		optgroup->append_single_option_line("support_material_interface_speed");
		optgroup->append_single_option_line("bridge_speed");
		optgroup->append_single_option_line("gap_fill_speed");

		optgroup = page->new_optgroup(_(L("Speed for non-print moves")));
		optgroup->append_single_option_line("travel_speed");

		optgroup = page->new_optgroup(_(L("Modifiers")));
		optgroup->append_single_option_line("first_layer_speed");

		optgroup = page->new_optgroup(_(L("Acceleration control (advanced)")));
		optgroup->append_single_option_line("perimeter_acceleration");
		optgroup->append_single_option_line("infill_acceleration");
		optgroup->append_single_option_line("bridge_acceleration");
		optgroup->append_single_option_line("first_layer_acceleration");
		optgroup->append_single_option_line("default_acceleration");

		optgroup = page->new_optgroup(_(L("Autospeed (advanced)")));
		optgroup->append_single_option_line("max_print_speed");
		optgroup->append_single_option_line("max_volumetric_speed");
		optgroup->append_single_option_line("max_volumetric_extrusion_rate_slope_positive");
		optgroup->append_single_option_line("max_volumetric_extrusion_rate_slope_negative");

	page = add_options_page(_(L("Multiple Extruders")), "funnel.png");
		optgroup = page->new_optgroup(_(L("Extruders")));
		optgroup->append_single_option_line("perimeter_extruder");
		optgroup->append_single_option_line("infill_extruder");
		optgroup->append_single_option_line("solid_infill_extruder");
		optgroup->append_single_option_line("support_material_extruder");
		optgroup->append_single_option_line("support_material_interface_extruder");

		optgroup = page->new_optgroup(_(L("Ooze prevention")));
		optgroup->append_single_option_line("ooze_prevention");
		optgroup->append_single_option_line("standby_temperature_delta");

		optgroup = page->new_optgroup(_(L("Wipe tower")));
		optgroup->append_single_option_line("wipe_tower");
		optgroup->append_single_option_line("wipe_tower_x");
		optgroup->append_single_option_line("wipe_tower_y");
		optgroup->append_single_option_line("wipe_tower_width");
		optgroup->append_single_option_line("wipe_tower_rotation_angle");
        optgroup->append_single_option_line("wipe_tower_bridging");

		optgroup = page->new_optgroup(_(L("Advanced")));
		optgroup->append_single_option_line("interface_shells");

	page = add_options_page(_(L("Advanced")), "wrench.png");
		optgroup = page->new_optgroup(_(L("Extrusion width")));
		optgroup->append_single_option_line("extrusion_width");
		optgroup->append_single_option_line("first_layer_extrusion_width");
		optgroup->append_single_option_line("perimeter_extrusion_width");
		optgroup->append_single_option_line("external_perimeter_extrusion_width");
		optgroup->append_single_option_line("infill_extrusion_width");
		optgroup->append_single_option_line("solid_infill_extrusion_width");
		optgroup->append_single_option_line("top_infill_extrusion_width");
		optgroup->append_single_option_line("support_material_extrusion_width");

		optgroup = page->new_optgroup(_(L("Overlap")));
		optgroup->append_single_option_line("infill_overlap");

		optgroup = page->new_optgroup(_(L("Flow")));
		optgroup->append_single_option_line("bridge_flow_ratio");

		optgroup = page->new_optgroup(_(L("Other")));
		optgroup->append_single_option_line("clip_multipart_objects");
		optgroup->append_single_option_line("elefant_foot_compensation");
		optgroup->append_single_option_line("xy_size_compensation");
//		#            optgroup->append_single_option_line("threads");
		optgroup->append_single_option_line("resolution");

	page = add_options_page(_(L("Output options")), "page_white_go.png");
		optgroup = page->new_optgroup(_(L("Sequential printing")));
		optgroup->append_single_option_line("complete_objects");
		line = { _(L("Extruder clearance (mm)")), "" };
		Option option = optgroup->get_option("extruder_clearance_radius");
		option.opt.width = 60;
		line.append_option(option);
		option = optgroup->get_option("extruder_clearance_height");
		option.opt.width = 60;
		line.append_option(option);
		optgroup->append_line(line);

		optgroup = page->new_optgroup(_(L("Output file")));
		optgroup->append_single_option_line("gcode_comments");
		option = optgroup->get_option("output_filename_format");
		option.opt.full_width = true;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("Post-processing scripts")), 0);	
		option = optgroup->get_option("post_process");
		option.opt.full_width = true;
		option.opt.height = 50;
		optgroup->append_single_option_line(option);

	page = add_options_page(_(L("Notes")), "note.png");
		optgroup = page->new_optgroup(_(L("Notes")), 0);						
		option = optgroup->get_option("notes");
		option.opt.full_width = true;
		option.opt.height = 250;
		optgroup->append_single_option_line(option);

	page = add_options_page(_(L("Dependencies")), "wrench.png");
		optgroup = page->new_optgroup(_(L("Profile dependencies")));
		line = { _(L("Compatible printers")), "" };
		line.widget = [this](wxWindow* parent){
			return compatible_printers_widget(parent, &m_compatible_printers_checkbox, &m_compatible_printers_btn);
		};
		optgroup->append_line(line, &m_colored_Label);

		option = optgroup->get_option("compatible_printers_condition");
		option.opt.full_width = true;
		optgroup->append_single_option_line(option);

		line = Line{ "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_parent_preset_description_line);
		};
		optgroup->append_line(line);
}

// Reload current config (aka presets->edited_preset->config) into the UI fields.
void TabPrint::reload_config(){
	reload_compatible_printers_widget();
	Tab::reload_config();
}

void TabPrint::update()
{
	Freeze();

	double fill_density = m_config->option<ConfigOptionPercent>("fill_density")->value;

	if (m_config->opt_bool("spiral_vase") &&
		!(m_config->opt_int("perimeters") == 1 && m_config->opt_int("top_solid_layers") == 0 &&
		fill_density == 0)) {
		wxString msg_text = _(L("The Spiral Vase mode requires:\n"
			"- one perimeter\n"
			"- no top solid layers\n"
			"- 0% fill density\n"
			"- no support material\n"
			"- no ensure_vertical_shell_thickness\n"
			"\nShall I adjust those settings in order to enable Spiral Vase?"));
		auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Spiral Vase")), wxICON_WARNING | wxYES | wxNO);
		DynamicPrintConfig new_conf = *m_config;
		if (dialog->ShowModal() == wxID_YES) {
			new_conf.set_key_value("perimeters", new ConfigOptionInt(1));
			new_conf.set_key_value("top_solid_layers", new ConfigOptionInt(0));
			new_conf.set_key_value("fill_density", new ConfigOptionPercent(0));
			new_conf.set_key_value("support_material", new ConfigOptionBool(false));
			new_conf.set_key_value("support_material_enforce_layers", new ConfigOptionInt(0));
			new_conf.set_key_value("ensure_vertical_shell_thickness", new ConfigOptionBool(false));
			fill_density = 0;
		}
		else {
			new_conf.set_key_value("spiral_vase", new ConfigOptionBool(false));
		}
		load_config(new_conf);
		on_value_change("fill_density", fill_density);
	}

	auto first_layer_height = m_config->option<ConfigOptionFloatOrPercent>("first_layer_height")->value;
	auto layer_height = m_config->opt_float("layer_height");
	if (m_config->opt_bool("wipe_tower") &&
		(first_layer_height != 0.2 || layer_height < 0.15 || layer_height > 0.35)) {
		wxString msg_text = _(L("The Wipe Tower currently supports only:\n"
			"- first layer height 0.2mm\n"
			"- layer height from 0.15mm to 0.35mm\n"
			"\nShall I adjust those settings in order to enable the Wipe Tower?"));
		auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Wipe Tower")), wxICON_WARNING | wxYES | wxNO);
		DynamicPrintConfig new_conf = *m_config;
		if (dialog->ShowModal() == wxID_YES) {
			const auto &val = *m_config->option<ConfigOptionFloatOrPercent>("first_layer_height");
			auto percent = val.percent;
			new_conf.set_key_value("first_layer_height", new ConfigOptionFloatOrPercent(0.2, percent));

			if (m_config->opt_float("layer_height") < 0.15) new_conf.set_key_value("layer_height", new ConfigOptionFloat(0.15));
			if (m_config->opt_float("layer_height") > 0.35) new_conf.set_key_value("layer_height", new ConfigOptionFloat(0.35));
		}
		else
			new_conf.set_key_value("wipe_tower", new ConfigOptionBool(false));
		load_config(new_conf);
	}

	if (m_config->opt_bool("wipe_tower") && m_config->opt_bool("support_material") &&
		m_config->opt_float("support_material_contact_distance") > 0. &&
		(m_config->opt_int("support_material_extruder") != 0 || m_config->opt_int("support_material_interface_extruder") != 0)) {
		wxString msg_text = _(L("The Wipe Tower currently supports the non-soluble supports only\n"
			"if they are printed with the current extruder without triggering a tool change.\n"
			"(both support_material_extruder and support_material_interface_extruder need to be set to 0).\n"
			"\nShall I adjust those settings in order to enable the Wipe Tower?"));
		auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Wipe Tower")), wxICON_WARNING | wxYES | wxNO);
		DynamicPrintConfig new_conf = *m_config;
		if (dialog->ShowModal() == wxID_YES) {
			new_conf.set_key_value("support_material_extruder", new ConfigOptionInt(0));
			new_conf.set_key_value("support_material_interface_extruder", new ConfigOptionInt(0));
		}
		else
			new_conf.set_key_value("wipe_tower", new ConfigOptionBool(false));
		load_config(new_conf);
	}

	if (m_config->opt_bool("wipe_tower") && m_config->opt_bool("support_material") &&
		m_config->opt_float("support_material_contact_distance") == 0 &&
		!m_config->opt_bool("support_material_synchronize_layers")) {
		wxString msg_text = _(L("For the Wipe Tower to work with the soluble supports, the support layers\n"
			"need to be synchronized with the object layers.\n"
			"\nShall I synchronize support layers in order to enable the Wipe Tower?"));
		auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Wipe Tower")), wxICON_WARNING | wxYES | wxNO);
		DynamicPrintConfig new_conf = *m_config;
		if (dialog->ShowModal() == wxID_YES) {
			new_conf.set_key_value("support_material_synchronize_layers", new ConfigOptionBool(true));
		}
		else
			new_conf.set_key_value("wipe_tower", new ConfigOptionBool(false));
		load_config(new_conf);
	}

	if (m_config->opt_bool("support_material")) {
		// Ask only once.
		if (!m_support_material_overhangs_queried) {
			m_support_material_overhangs_queried = true;
			if (!m_config->opt_bool("overhangs")/* != 1*/) {
				wxString msg_text = _(L("Supports work better, if the following feature is enabled:\n"
					"- Detect bridging perimeters\n"
					"\nShall I adjust those settings for supports?"));
				auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Support Generator")), wxICON_WARNING | wxYES | wxNO | wxCANCEL);
				DynamicPrintConfig new_conf = *m_config;
				auto answer = dialog->ShowModal();
				if (answer == wxID_YES) {
					// Enable "detect bridging perimeters".
					new_conf.set_key_value("overhangs", new ConfigOptionBool(true));
				} else if (answer == wxID_NO) {
					// Do nothing, leave supports on and "detect bridging perimeters" off.
				} else if (answer == wxID_CANCEL) {
					// Disable supports.
					new_conf.set_key_value("support_material", new ConfigOptionBool(false));
					m_support_material_overhangs_queried = false;
				}
				load_config(new_conf);
			}
		}
	}
	else {
		m_support_material_overhangs_queried = false;
	}

	if (m_config->option<ConfigOptionPercent>("fill_density")->value == 100) {
		auto fill_pattern = m_config->option<ConfigOptionEnum<InfillPattern>>("fill_pattern")->value;
		std::string str_fill_pattern = "";
		t_config_enum_values map_names = m_config->option<ConfigOptionEnum<InfillPattern>>("fill_pattern")->get_enum_values();
		for (auto it : map_names) {
			if (fill_pattern == it.second) {
				str_fill_pattern = it.first;
				break;
			}
		}
		if (!str_fill_pattern.empty()){
			auto external_fill_pattern = m_config->def()->get("external_fill_pattern")->enum_values;
			bool correct_100p_fill = false;
			for (auto fill : external_fill_pattern)
			{
				if (str_fill_pattern.compare(fill) == 0)
					correct_100p_fill = true;
			}
			// get fill_pattern name from enum_labels for using this one at dialog_msg
			str_fill_pattern = m_config->def()->get("fill_pattern")->enum_labels[fill_pattern];
			if (!correct_100p_fill){
				wxString msg_text = _(L("The ")) + str_fill_pattern + _(L(" infill pattern is not supposed to work at 100% density.\n"
					"\nShall I switch to rectilinear fill pattern?"));
				auto dialog = new wxMessageDialog(parent(), msg_text, _(L("Infill")), wxICON_WARNING | wxYES | wxNO);
				DynamicPrintConfig new_conf = *m_config;
				if (dialog->ShowModal() == wxID_YES) {
					new_conf.set_key_value("fill_pattern", new ConfigOptionEnum<InfillPattern>(ipRectilinear));
					fill_density = 100;
				}
				else
					fill_density = m_presets->get_selected_preset().config.option<ConfigOptionPercent>("fill_density")->value;
				new_conf.set_key_value("fill_density", new ConfigOptionPercent(fill_density));
				load_config(new_conf);
				on_value_change("fill_density", fill_density);
			}
		}
	}

	bool have_perimeters = m_config->opt_int("perimeters") > 0;
	for (auto el : {"extra_perimeters", "ensure_vertical_shell_thickness", "thin_walls", "overhangs",
					"seam_position", "external_perimeters_first", "external_perimeter_extrusion_width",
					"perimeter_speed", "small_perimeter_speed", "external_perimeter_speed" })
		get_field(el)->toggle(have_perimeters);

	bool have_infill = m_config->option<ConfigOptionPercent>("fill_density")->value > 0;
	// infill_extruder uses the same logic as in Print::extruders()
	for (auto el : {"fill_pattern", "infill_every_layers", "infill_only_where_needed",
					"solid_infill_every_layers", "solid_infill_below_area", "infill_extruder" })
		get_field(el)->toggle(have_infill);

	bool have_solid_infill = m_config->opt_int("top_solid_layers") > 0 || m_config->opt_int("bottom_solid_layers") > 0;
	// solid_infill_extruder uses the same logic as in Print::extruders()
	for (auto el : {"external_fill_pattern", "infill_first", "solid_infill_extruder",
					"solid_infill_extrusion_width", "solid_infill_speed" })
		get_field(el)->toggle(have_solid_infill);

	for (auto el : {"fill_angle", "bridge_angle", "infill_extrusion_width",
					"infill_speed", "bridge_speed" })
		get_field(el)->toggle(have_infill || have_solid_infill);

	get_field("gap_fill_speed")->toggle(have_perimeters && have_infill);

	bool have_top_solid_infill = m_config->opt_int("top_solid_layers") > 0;
	for (auto el : { "top_infill_extrusion_width", "top_solid_infill_speed" })
		get_field(el)->toggle(have_top_solid_infill);

	bool have_default_acceleration = m_config->opt_float("default_acceleration") > 0;
	for (auto el : {"perimeter_acceleration", "infill_acceleration",
					"bridge_acceleration", "first_layer_acceleration" })
		get_field(el)->toggle(have_default_acceleration);

	bool have_skirt = m_config->opt_int("skirts") > 0 || m_config->opt_float("min_skirt_length") > 0;
	for (auto el : { "skirt_distance", "skirt_height" })
		get_field(el)->toggle(have_skirt);

	bool have_brim = m_config->opt_float("brim_width") > 0;
	// perimeter_extruder uses the same logic as in Print::extruders()
	get_field("perimeter_extruder")->toggle(have_perimeters || have_brim);

	bool have_raft = m_config->opt_int("raft_layers") > 0;
	bool have_support_material = m_config->opt_bool("support_material") || have_raft;
	bool have_support_interface = m_config->opt_int("support_material_interface_layers") > 0;
	bool have_support_soluble = have_support_material && m_config->opt_float("support_material_contact_distance") == 0;
	for (auto el : {"support_material_threshold", "support_material_pattern", "support_material_with_sheath",
					"support_material_spacing", "support_material_angle", "support_material_interface_layers",
					"dont_support_bridges", "support_material_extrusion_width", "support_material_contact_distance",
					"support_material_xy_spacing" })
		get_field(el)->toggle(have_support_material);

	for (auto el : {"support_material_interface_spacing", "support_material_interface_extruder",
					"support_material_interface_speed", "support_material_interface_contact_loops" })
		get_field(el)->toggle(have_support_material && have_support_interface);
	get_field("support_material_synchronize_layers")->toggle(have_support_soluble);

	get_field("perimeter_extrusion_width")->toggle(have_perimeters || have_skirt || have_brim);
	get_field("support_material_extruder")->toggle(have_support_material || have_skirt);
	get_field("support_material_speed")->toggle(have_support_material || have_brim || have_skirt);

	bool have_sequential_printing = m_config->opt_bool("complete_objects");
	for (auto el : { "extruder_clearance_radius", "extruder_clearance_height" })
		get_field(el)->toggle(have_sequential_printing);

	bool have_ooze_prevention = m_config->opt_bool("ooze_prevention");
	get_field("standby_temperature_delta")->toggle(have_ooze_prevention);

	bool have_wipe_tower = m_config->opt_bool("wipe_tower");
	for (auto el : { "wipe_tower_x", "wipe_tower_y", "wipe_tower_width", "wipe_tower_rotation_angle", "wipe_tower_bridging"})
		get_field(el)->toggle(have_wipe_tower);

	m_recommended_thin_wall_thickness_description_line->SetText(
		from_u8(PresetHints::recommended_thin_wall_thickness(*m_preset_bundle)));

	Thaw();
}

void TabPrint::OnActivate()
{
	m_recommended_thin_wall_thickness_description_line->SetText(
		from_u8(PresetHints::recommended_thin_wall_thickness(*m_preset_bundle)));
}

void TabFilament::build()
{
	m_presets = &m_preset_bundle->filaments;
	load_initial_data();

	auto page = add_options_page(_(L("Filament")), "spool.png");
		auto optgroup = page->new_optgroup(_(L("Filament")));
		optgroup->append_single_option_line("filament_colour");
		optgroup->append_single_option_line("filament_diameter");
		optgroup->append_single_option_line("extrusion_multiplier");
		optgroup->append_single_option_line("filament_density");
		optgroup->append_single_option_line("filament_cost");

		optgroup = page->new_optgroup(_(L("Temperature ")) +" (\u00B0C)"); // degree sign
		Line line = { _(L("Extruder")), "" };
		line.append_option(optgroup->get_option("first_layer_temperature"));
		line.append_option(optgroup->get_option("temperature"));
		optgroup->append_line(line);

		line = { _(L("Bed")), "" };
		line.append_option(optgroup->get_option("first_layer_bed_temperature"));
		line.append_option(optgroup->get_option("bed_temperature"));
		optgroup->append_line(line);

	page = add_options_page(_(L("Cooling")), "hourglass.png");
		optgroup = page->new_optgroup(_(L("Enable")));
		optgroup->append_single_option_line("fan_always_on");
		optgroup->append_single_option_line("cooling");

		line = { "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_cooling_description_line);
		};
		optgroup->append_line(line);

		optgroup = page->new_optgroup(_(L("Fan settings")));
		line = { _(L("Fan speed")), "" };
		line.append_option(optgroup->get_option("min_fan_speed"));
		line.append_option(optgroup->get_option("max_fan_speed"));
		optgroup->append_line(line);

		optgroup->append_single_option_line("bridge_fan_speed");
		optgroup->append_single_option_line("disable_fan_first_layers");

		optgroup = page->new_optgroup(_(L("Cooling thresholds")), 250);
		optgroup->append_single_option_line("fan_below_layer_time");
		optgroup->append_single_option_line("slowdown_below_layer_time");
		optgroup->append_single_option_line("min_print_speed");

	page = add_options_page(_(L("Advanced")), "wrench.png");
		optgroup = page->new_optgroup(_(L("Filament properties")));
		optgroup->append_single_option_line("filament_type");
		optgroup->append_single_option_line("filament_soluble");

		optgroup = page->new_optgroup(_(L("Print speed override")));
		optgroup->append_single_option_line("filament_max_volumetric_speed");

		line = { "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_volumetric_speed_description_line);
		};
		optgroup->append_line(line);

        optgroup = page->new_optgroup(_(L("Toolchange behaviour")));
		optgroup->append_single_option_line("filament_loading_speed");
        optgroup->append_single_option_line("filament_unloading_speed");
        optgroup->append_single_option_line("filament_toolchange_delay");
        optgroup->append_single_option_line("filament_cooling_time");
        line = { _(L("Ramming")), "" };
        line.widget = [this](wxWindow* parent){
			auto ramming_dialog_btn = new wxButton(parent, wxID_ANY, _(L("Ramming settings"))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_EXACTFIT);
            auto sizer = new wxBoxSizer(wxHORIZONTAL);
			sizer->Add(ramming_dialog_btn);
            
            ramming_dialog_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent& e)
			{
                RammingDialog dlg(this,(m_config->option<ConfigOptionStrings>("filament_ramming_parameters"))->get_at(0));
                if (dlg.ShowModal() == wxID_OK)
                    (m_config->option<ConfigOptionStrings>("filament_ramming_parameters"))->get_at(0) = dlg.get_parameters();
			}));
			return sizer;
		};
		optgroup->append_line(line);


        page = add_options_page(_(L("Custom G-code")), "cog.png");
		optgroup = page->new_optgroup(_(L("Start G-code")), 0);
		Option option = optgroup->get_option("start_filament_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("End G-code")), 0);
		option = optgroup->get_option("end_filament_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

	page = add_options_page(_(L("Notes")), "note.png");
		optgroup = page->new_optgroup(_(L("Notes")), 0);
		optgroup->label_width = 0;
		option = optgroup->get_option("filament_notes");
		option.opt.full_width = true;
		option.opt.height = 250;
		optgroup->append_single_option_line(option);

	page = add_options_page(_(L("Dependencies")), "wrench.png");
		optgroup = page->new_optgroup(_(L("Profile dependencies")));
		line = { _(L("Compatible printers")), "" };
		line.widget = [this](wxWindow* parent){
			return compatible_printers_widget(parent, &m_compatible_printers_checkbox, &m_compatible_printers_btn);
		};
		optgroup->append_line(line, &m_colored_Label);

		option = optgroup->get_option("compatible_printers_condition");
		option.opt.full_width = true;
		optgroup->append_single_option_line(option);

		line = Line{ "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_parent_preset_description_line);
		};
		optgroup->append_line(line);
}

// Reload current config (aka presets->edited_preset->config) into the UI fields.
void TabFilament::reload_config(){
	reload_compatible_printers_widget();
	Tab::reload_config();
}

void TabFilament::update()
{
	wxString text = from_u8(PresetHints::cooling_description(m_presets->get_edited_preset()));
	m_cooling_description_line->SetText(text);
	text = from_u8(PresetHints::maximum_volumetric_flow_description(*m_preset_bundle));
	m_volumetric_speed_description_line->SetText(text);

	bool cooling = m_config->opt_bool("cooling", 0);
	bool fan_always_on = cooling || m_config->opt_bool("fan_always_on", 0);

	for (auto el : { "max_fan_speed", "fan_below_layer_time", "slowdown_below_layer_time", "min_print_speed" })
		get_field(el)->toggle(cooling);

	for (auto el : { "min_fan_speed", "disable_fan_first_layers" })
		get_field(el)->toggle(fan_always_on);
}

void TabFilament::OnActivate()
{
	m_volumetric_speed_description_line->SetText(from_u8(PresetHints::maximum_volumetric_flow_description(*m_preset_bundle)));
}

wxSizer* Tab::description_line_widget(wxWindow* parent, ogStaticText* *StaticText)
{
	*StaticText = new ogStaticText(parent, "");

	auto font = (new wxSystemSettings)->GetFont(wxSYS_DEFAULT_GUI_FONT);
	(*StaticText)->SetFont(font);

	auto sizer = new wxBoxSizer(wxHORIZONTAL);
	sizer->Add(*StaticText);
	return sizer;
}

bool Tab::current_preset_is_dirty()
{
	return m_presets->current_is_dirty();
}

void TabPrinter::build()
{
	m_presets = &m_preset_bundle->printers;
	load_initial_data();

	auto   *nozzle_diameter = dynamic_cast<const ConfigOptionFloats*>(m_config->option("nozzle_diameter"));
	m_initial_extruders_count = m_extruders_count = nozzle_diameter->values.size();
	const Preset* parent_preset = m_presets->get_selected_preset_parent();
	m_sys_extruders_count = parent_preset == nullptr ? 0 :
			static_cast<const ConfigOptionFloats*>(parent_preset->config.option("nozzle_diameter"))->values.size();

	auto page = add_options_page(_(L("General")), "printer_empty.png");
		auto optgroup = page->new_optgroup(_(L("Size and coordinates")));

		Line line{ _(L("Bed shape")), "" };
		line.widget = [this](wxWindow* parent){
			auto btn = new wxButton(parent, wxID_ANY, _(L(" Set "))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
			//			btn->SetFont(Slic3r::GUI::small_font);
			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("printer_empty.png")), wxBITMAP_TYPE_PNG));

			auto sizer = new wxBoxSizer(wxHORIZONTAL);
			sizer->Add(btn);

			btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent e)
			{
				auto dlg = new BedShapeDialog(this);
				dlg->build_dialog(m_config->option<ConfigOptionPoints>("bed_shape"));
				if (dlg->ShowModal() == wxID_OK){
					load_key_value("bed_shape", dlg->GetValue());
					update_changed_ui();
				}
			}));

			return sizer;
		};
		optgroup->append_line(line, &m_colored_Label);
        optgroup->append_single_option_line("max_print_height");
        optgroup->append_single_option_line("z_offset");

		optgroup = page->new_optgroup(_(L("Capabilities")));
		ConfigOptionDef def;
			def.type =  coInt,
			def.default_value = new ConfigOptionInt(1); 
			def.label = L("Extruders");
			def.tooltip = L("Number of extruders of the printer.");
			def.min = 1;
		Option option(def, "extruders_count");
		optgroup->append_single_option_line(option);
		optgroup->append_single_option_line("single_extruder_multi_material");

		optgroup->m_on_change = [this, optgroup](t_config_option_key opt_key, boost::any value){
			size_t extruders_count = boost::any_cast<int>(optgroup->get_value("extruders_count"));
			wxTheApp->CallAfter([this, opt_key, value, extruders_count](){
				if (opt_key.compare("extruders_count")==0 || opt_key.compare("single_extruder_multi_material")==0) {
					extruders_count_changed(extruders_count);
					update_dirty();
                    if (opt_key.compare("single_extruder_multi_material")==0) // the single_extruder_multimaterial was added to force pages
                        on_value_change(opt_key, value);                      // rebuild - let's make sure the on_value_change is not skipped
				}
				else {
					update_dirty();
					on_value_change(opt_key, value);
				}
			});
		};


		if (!m_no_controller)
		{
		optgroup = page->new_optgroup(_(L("USB/Serial connection")));
			line = {_(L("Serial port")), ""};
			Option serial_port = optgroup->get_option("serial_port");
			serial_port.side_widget = ([this](wxWindow* parent){
				auto btn = new wxBitmapButton(parent, wxID_ANY, wxBitmap(from_u8(Slic3r::var("arrow_rotate_clockwise.png")), wxBITMAP_TYPE_PNG),
					wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
				btn->SetToolTip(_(L("Rescan serial ports")));
				auto sizer = new wxBoxSizer(wxHORIZONTAL);
				sizer->Add(btn);

				btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent e) {update_serial_ports(); });
				return sizer;
			});
			auto serial_test = [this](wxWindow* parent){
				auto btn = m_serial_test_btn = new wxButton(parent, wxID_ANY,
					_(L("Test")), wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
//				btn->SetFont($Slic3r::GUI::small_font);
				btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("wrench.png")), wxBITMAP_TYPE_PNG));
				auto sizer = new wxBoxSizer(wxHORIZONTAL);
				sizer->Add(btn);

				btn->Bind(wxEVT_BUTTON, [this, parent](wxCommandEvent e){
					auto sender = new GCodeSender();					
					auto res = sender->connect(
						m_config->opt_string("serial_port"), 
						m_config->opt_int("serial_speed")
						);
					if (res && sender->wait_connected()) {
						show_info(parent, _(L("Connection to printer works correctly.")), _(L("Success!")));
					}
					else {
						show_error(parent, _(L("Connection failed.")));
					}
				});
				return sizer;
			};

			line.append_option(serial_port);
			line.append_option(optgroup->get_option("serial_speed"));
			line.append_widget(serial_test);
			optgroup->append_line(line);
		}

		optgroup = page->new_optgroup(_(L("OctoPrint upload")));

		auto octoprint_host_browse = [this, optgroup] (wxWindow* parent) {
			auto btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
			auto sizer = new wxBoxSizer(wxHORIZONTAL);
			sizer->Add(btn);

			btn->Bind(wxEVT_BUTTON, [this, parent, optgroup](wxCommandEvent e) {
				BonjourDialog dialog(parent);
				if (dialog.show_and_lookup()) {
					optgroup->set_value("octoprint_host", std::move(dialog.get_selected()), true);
				}
			});

			return sizer;
		};

		auto octoprint_host_test = [this](wxWindow* parent) {
			auto btn = m_octoprint_host_test_btn = new wxButton(parent, wxID_ANY, _(L("Test")), 
				wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("wrench.png")), wxBITMAP_TYPE_PNG));
			auto sizer = new wxBoxSizer(wxHORIZONTAL);
			sizer->Add(btn);

			btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent e) {
				OctoPrint octoprint(m_config);
				wxString msg;
				if (octoprint.test(msg)) {
					show_info(this, _(L("Connection to OctoPrint works correctly.")), _(L("Success!")));
				} else {
					const auto text = wxString::Format("%s: %s\n\n%s",
						_(L("Could not connect to OctoPrint")), msg, _(L("Note: OctoPrint version at least 1.1.0 is required."))
					);
					show_error(this, text);
				}
			});

			return sizer;
		};

		Line host_line = optgroup->create_single_option_line("octoprint_host");
		host_line.append_widget(octoprint_host_browse);
		host_line.append_widget(octoprint_host_test);
		optgroup->append_line(host_line);
		optgroup->append_single_option_line("octoprint_apikey");

		if (Http::ca_file_supported()) {

			Line cafile_line = optgroup->create_single_option_line("octoprint_cafile");

			auto octoprint_cafile_browse = [this, optgroup] (wxWindow* parent) {
				auto btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
				btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
				auto sizer = new wxBoxSizer(wxHORIZONTAL);
				sizer->Add(btn);

				btn->Bind(wxEVT_BUTTON, [this, optgroup] (wxCommandEvent e){
					static const auto filemasks = _(L("Certificate files (*.crt, *.pem)|*.crt;*.pem|All files|*.*"));
					wxFileDialog openFileDialog(this, _(L("Open CA certificate file")), "", "", filemasks, wxFD_OPEN | wxFD_FILE_MUST_EXIST);
					if (openFileDialog.ShowModal() != wxID_CANCEL) {
						optgroup->set_value("octoprint_cafile", std::move(openFileDialog.GetPath()), true);
					}
				});

				return sizer;
			};

			cafile_line.append_widget(octoprint_cafile_browse);
			optgroup->append_line(cafile_line);

			auto octoprint_cafile_hint = [this, optgroup] (wxWindow* parent) {
				auto txt = new wxStaticText(parent, wxID_ANY, 
					_(L("HTTPS CA file is optional. It is only needed if you use HTTPS with a self-signed certificate.")));
				auto sizer = new wxBoxSizer(wxHORIZONTAL);
				sizer->Add(txt);
				return sizer;
			};

			Line cafile_hint { "", "" };
			cafile_hint.full_width = 1;
			cafile_hint.widget = std::move(octoprint_cafile_hint);
			optgroup->append_line(cafile_hint);

		}

		optgroup = page->new_optgroup(_(L("Firmware")));
		optgroup->append_single_option_line("gcode_flavor");

		optgroup = page->new_optgroup(_(L("Advanced")));
		optgroup->append_single_option_line("use_relative_e_distances");
		optgroup->append_single_option_line("use_firmware_retraction");
		optgroup->append_single_option_line("use_volumetric_e");
		optgroup->append_single_option_line("variable_layer_height");

	page = add_options_page(_(L("Custom G-code")), "cog.png");
		optgroup = page->new_optgroup(_(L("Start G-code")), 0);
		option = optgroup->get_option("start_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("End G-code")), 0);
		option = optgroup->get_option("end_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("Before layer change G-code")), 0);
		option = optgroup->get_option("before_layer_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("After layer change G-code")), 0);
		option = optgroup->get_option("layer_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("Tool change G-code")), 0);
		option = optgroup->get_option("toolchange_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);

		optgroup = page->new_optgroup(_(L("Between objects G-code (for sequential printing)")), 0);
		option = optgroup->get_option("between_objects_gcode");
		option.opt.full_width = true;
		option.opt.height = 150;
		optgroup->append_single_option_line(option);
	
	page = add_options_page(_(L("Notes")), "note.png");
		optgroup = page->new_optgroup(_(L("Notes")), 0);
		option = optgroup->get_option("printer_notes");
		option.opt.full_width = true;
		option.opt.height = 250;
		optgroup->append_single_option_line(option);

	page = add_options_page(_(L("Dependencies")), "wrench.png");
		optgroup = page->new_optgroup(_(L("Profile dependencies")));
		line = Line{ "", "" };
		line.full_width = 1;
		line.widget = [this](wxWindow* parent) {
			return description_line_widget(parent, &m_parent_preset_description_line);
		};
		optgroup->append_line(line);

	build_extruder_pages();

	if (!m_no_controller)
		update_serial_ports();
}

void TabPrinter::update_serial_ports(){
	Field *field = get_field("serial_port");
	Choice *choice = static_cast<Choice *>(field);
	choice->set_values(scan_serial_ports());
}

void TabPrinter::extruders_count_changed(size_t extruders_count){
	m_extruders_count = extruders_count;
	m_preset_bundle->printers.get_edited_preset().set_num_extruders(extruders_count);
	m_preset_bundle->update_multi_material_filament_presets();
	build_extruder_pages();
	reload_config();
	on_value_change("extruders_count", extruders_count);
}

void TabPrinter::build_extruder_pages(){
	if (m_extruders_count_old == m_extruders_count)
	{
		// if we have a single extruder MM setup, add a page with configuration options:
		for (int i = 0; i < m_pages.size(); ++i) // first make sure it's not there already
			if (m_pages[i]->title().find(_(L("Single extruder MM setup"))) != std::string::npos) {
				m_pages.erase(m_pages.begin() + i);
				break;
			}
		if (m_extruders_count > 1 && m_config->opt_bool("single_extruder_multi_material")) {
			// create a page, but pretend it's an extruder page, so we can add it to m_pages ourselves
			auto page = add_options_page(_(L("Single extruder MM setup")), "printer_empty.png", true);
			auto optgroup = page->new_optgroup(_(L("Single extruder multimaterial parameters")));
			optgroup->append_single_option_line("cooling_tube_retraction");
			optgroup->append_single_option_line("cooling_tube_length");
			optgroup->append_single_option_line("parking_pos_retraction");
			m_pages.insert(m_pages.end()-2, page);
		}
		rebuild_page_tree();
		return;
	}
		
	for (auto extruder_idx = m_extruders_count_old; extruder_idx < m_extruders_count; ++extruder_idx){
		//# build page
		char buf[MIN_BUF_LENGTH_FOR_L];
		sprintf(buf, _CHB(L("Extruder %d")), extruder_idx + 1);
		auto page = add_options_page(from_u8(buf), "funnel.png", true);
		m_pages.insert(m_pages.begin() + 2+extruder_idx, page);
			
			auto optgroup = page->new_optgroup(_(L("Size")));
			optgroup->append_single_option_line("nozzle_diameter", extruder_idx);
		
			optgroup = page->new_optgroup(_(L("Layer height limits")));
			optgroup->append_single_option_line("min_layer_height", extruder_idx);
			optgroup->append_single_option_line("max_layer_height", extruder_idx);
				
		
			optgroup = page->new_optgroup(_(L("Position (for multi-extruder printers)")));
			optgroup->append_single_option_line("extruder_offset", extruder_idx);
		
			optgroup = page->new_optgroup(_(L("Retraction")));
			optgroup->append_single_option_line("retract_length", extruder_idx);
			optgroup->append_single_option_line("retract_lift", extruder_idx);
				Line line = { _(L("Only lift Z")), "" };
				line.append_option(optgroup->get_option("retract_lift_above", extruder_idx));
				line.append_option(optgroup->get_option("retract_lift_below", extruder_idx));
				optgroup->append_line(line);
			
			optgroup->append_single_option_line("retract_speed", extruder_idx);
			optgroup->append_single_option_line("deretract_speed", extruder_idx);
			optgroup->append_single_option_line("retract_restart_extra", extruder_idx);
			optgroup->append_single_option_line("retract_before_travel", extruder_idx);
			optgroup->append_single_option_line("retract_layer_change", extruder_idx);
			optgroup->append_single_option_line("wipe", extruder_idx);
			optgroup->append_single_option_line("retract_before_wipe", extruder_idx);
	
			optgroup = page->new_optgroup(_(L("Retraction when tool is disabled (advanced settings for multi-extruder setups)")));
			optgroup->append_single_option_line("retract_length_toolchange", extruder_idx);
			optgroup->append_single_option_line("retract_restart_extra_toolchange", extruder_idx);

			optgroup = page->new_optgroup(_(L("Preview")));
			optgroup->append_single_option_line("extruder_colour", extruder_idx);
	}
 
	// # remove extra pages
	if (m_extruders_count < m_extruders_count_old)
		m_pages.erase(m_pages.begin() + 2 + m_extruders_count, m_pages.begin() + 2 + m_extruders_count_old);

	m_extruders_count_old = m_extruders_count;

	rebuild_page_tree();
}

// this gets executed after preset is loaded and before GUI fields are updated
void TabPrinter::on_preset_loaded()
{
	// update the extruders count field
	auto   *nozzle_diameter = dynamic_cast<const ConfigOptionFloats*>(m_config->option("nozzle_diameter"));
	int extruders_count = nozzle_diameter->values.size();
	set_value("extruders_count", extruders_count);
	// update the GUI field according to the number of nozzle diameters supplied
	extruders_count_changed(extruders_count);
}

void TabPrinter::update(){
	Freeze();

	bool en;
	auto serial_speed = get_field("serial_speed");
	if (serial_speed != nullptr) {
		en = !m_config->opt_string("serial_port").empty();
		get_field("serial_speed")->toggle(en);
		if (m_config->opt_int("serial_speed") != 0 && en)
			m_serial_test_btn->Enable();
		else 
			m_serial_test_btn->Disable();
	}

	m_octoprint_host_test_btn->Enable(!m_config->opt_string("octoprint_host").empty());
	
	bool have_multiple_extruders = m_extruders_count > 1;
	get_field("toolchange_gcode")->toggle(have_multiple_extruders);
	get_field("single_extruder_multi_material")->toggle(have_multiple_extruders);

	for (size_t i = 0; i < m_extruders_count; ++i) {
		bool have_retract_length = m_config->opt_float("retract_length", i) > 0;

		// when using firmware retraction, firmware decides retraction length
		bool use_firmware_retraction = m_config->opt_bool("use_firmware_retraction");
		get_field("retract_length", i)->toggle(!use_firmware_retraction);

		// user can customize travel length if we have retraction length or we"re using
		// firmware retraction
		get_field("retract_before_travel", i)->toggle(have_retract_length || use_firmware_retraction);

		// user can customize other retraction options if retraction is enabled
		bool retraction = (have_retract_length || use_firmware_retraction);
		std::vector<std::string> vec = { "retract_lift", "retract_layer_change" };
		for (auto el : vec)
			get_field(el, i)->toggle(retraction);

		// retract lift above / below only applies if using retract lift
		vec.resize(0);
		vec = { "retract_lift_above", "retract_lift_below" };
		for (auto el : vec)
			get_field(el, i)->toggle(retraction && m_config->opt_float("retract_lift", i) > 0);

		// some options only apply when not using firmware retraction
		vec.resize(0);
		vec = { "retract_speed", "deretract_speed", "retract_before_wipe", "retract_restart_extra", "wipe" };
		for (auto el : vec)
			get_field(el, i)->toggle(retraction && !use_firmware_retraction);

		bool wipe = m_config->opt_bool("wipe", i);
		get_field("retract_before_wipe", i)->toggle(wipe);

		if (use_firmware_retraction && wipe) {
			auto dialog = new wxMessageDialog(parent(),
				_(L("The Wipe option is not available when using the Firmware Retraction mode.\n"
				"\nShall I disable it in order to enable Firmware Retraction?")),
				_(L("Firmware Retraction")), wxICON_WARNING | wxYES | wxNO);

			DynamicPrintConfig new_conf = *m_config;
			if (dialog->ShowModal() == wxID_YES) {
				auto wipe = static_cast<ConfigOptionBools*>(m_config->option("wipe")->clone());
				for (int w = 0; w < wipe->values.size(); w++)
					wipe->values[w] = false;
				new_conf.set_key_value("wipe", wipe);
			}
			else {
				new_conf.set_key_value("use_firmware_retraction", new ConfigOptionBool(false));
			}
			load_config(new_conf);
		}

		get_field("retract_length_toolchange", i)->toggle(have_multiple_extruders);

		bool toolchange_retraction = m_config->opt_float("retract_length_toolchange", i) > 0;
		get_field("retract_restart_extra_toolchange", i)->toggle
			(have_multiple_extruders && toolchange_retraction);
	}

	Thaw();
}

// Initialize the UI from the current preset
void Tab::load_current_preset()
{
	auto preset = m_presets->get_edited_preset();

	preset.is_default ? m_btn_delete_preset->Disable() : m_btn_delete_preset->Enable(true);
	update();
	// For the printer profile, generate the extruder pages.
	on_preset_loaded();
	// Reload preset pages with the new configuration values.
	reload_config();
	m_bmp_non_system = m_presets->get_selected_preset_parent() ? &m_bmp_value_unlock : &m_bmp_white_bullet;

	// use CallAfter because some field triggers schedule on_change calls using CallAfter,
	// and we don't want them to be called after this update_dirty() as they would mark the 
	// preset dirty again
	// (not sure this is true anymore now that update_dirty is idempotent)
	wxTheApp->CallAfter([this]{
		// checking out if this Tab exists till this moment
		if (!checked_tab(this))
			return;
		update_tab_ui();
		on_presets_changed();

		if (name() == "print")
			update_frequently_changed_parameters();
		if (m_name == "printer"){
			static_cast<TabPrinter*>(this)->m_initial_extruders_count = static_cast<TabPrinter*>(this)->m_extruders_count;
			const Preset* parent_preset = m_presets->get_selected_preset_parent();
			static_cast<TabPrinter*>(this)->m_sys_extruders_count = parent_preset == nullptr ? 0 :
				static_cast<const ConfigOptionFloats*>(parent_preset->config.option("nozzle_diameter"))->values.size();
		}
		m_opt_status_value = (m_presets->get_selected_preset_parent() ? osSystemValue : 0) | osInitValue;
		init_options_list();
		update_changed_ui();
	});
}

//Regerenerate content of the page tree.
void Tab::rebuild_page_tree()
{
	Freeze();
	// get label of the currently selected item
	auto selected = m_treectrl->GetItemText(m_treectrl->GetSelection());
	auto rootItem = m_treectrl->GetRootItem();
	m_treectrl->DeleteChildren(rootItem);
	auto have_selection = 0;
	for (auto p : m_pages)
	{
		auto itemId = m_treectrl->AppendItem(rootItem, p->title(), p->iconID());
		m_treectrl->SetItemTextColour(itemId, p->get_item_colour());
		if (p->title() == selected) {
			m_disable_tree_sel_changed_event = 1;
			m_treectrl->SelectItem(itemId);
			m_disable_tree_sel_changed_event = 0;
			have_selection = 1;
		}
	}
	
	if (!have_selection) {
		// this is triggered on first load, so we don't disable the sel change event
		m_treectrl->SelectItem(m_treectrl->GetFirstVisibleItem());//! (treectrl->GetFirstChild(rootItem));
	}
	Thaw();
}

// Called by the UI combo box when the user switches profiles.
// Select a preset by a name.If !defined(name), then the default preset is selected.
// If the current profile is modified, user is asked to save the changes.
void Tab::select_preset(const std::string& preset_name /*= ""*/)
{
	std::string name = preset_name;
	auto force = false;
	auto presets = m_presets;
	// If no name is provided, select the "-- default --" preset.
	if (name.empty())
		name= presets->default_preset().name;
	auto current_dirty = presets->current_is_dirty();
	auto canceled = false;
	auto printer_tab = presets->name().compare("printer")==0;
	m_reload_dependent_tabs = {};
	if (!force && current_dirty && !may_discard_current_dirty_preset()) {
		canceled = true;
	} else if(printer_tab) {
		// Before switching the printer to a new one, verify, whether the currently active print and filament
		// are compatible with the new printer.
		// If they are not compatible and the current print or filament are dirty, let user decide
		// whether to discard the changes or keep the current printer selection.
		auto new_printer_preset = presets->find_preset(name, true);
		auto print_presets = &m_preset_bundle->prints;
		bool print_preset_dirty = print_presets->current_is_dirty();
		bool print_preset_compatible = print_presets->get_edited_preset().is_compatible_with_printer(*new_printer_preset);
		canceled = !force && print_preset_dirty && !print_preset_compatible &&
			!may_discard_current_dirty_preset(print_presets, name);
		auto filament_presets = &m_preset_bundle->filaments;
		bool filament_preset_dirty = filament_presets->current_is_dirty();
		bool filament_preset_compatible = filament_presets->get_edited_preset().is_compatible_with_printer(*new_printer_preset);
		if (!canceled && !force) {
			canceled = filament_preset_dirty && !filament_preset_compatible &&
				!may_discard_current_dirty_preset(filament_presets, name);
		}
		if (!canceled) {
			if (!print_preset_compatible) {
				// The preset will be switched to a different, compatible preset, or the '-- default --'.
				m_reload_dependent_tabs.push_back("print");
				if (print_preset_dirty) print_presets->discard_current_changes();
			}
			if (!filament_preset_compatible) {
				// The preset will be switched to a different, compatible preset, or the '-- default --'.
				m_reload_dependent_tabs.push_back("filament");
				if (filament_preset_dirty) filament_presets->discard_current_changes();
			}
		}
	}
	if (canceled) {
		update_tab_ui();
		// Trigger the on_presets_changed event so that we also restore the previous value in the plater selector,
		// if this action was initiated from the platter.
		on_presets_changed();
	}
	else {
		if (current_dirty) presets->discard_current_changes() ;
		presets->select_preset_by_name(name, force);
		// Mark the print & filament enabled if they are compatible with the currently selected preset.
		// The following method should not discard changes of current print or filament presets on change of a printer profile,
		// if they are compatible with the current printer.
		if (current_dirty || printer_tab)
			m_preset_bundle->update_compatible_with_printer(true);
		// Initialize the UI from the current preset.
		load_current_preset();
	}

}

// If the current preset is dirty, the user is asked whether the changes may be discarded.
// if the current preset was not dirty, or the user agreed to discard the changes, 1 is returned.
bool Tab::may_discard_current_dirty_preset(PresetCollection* presets /*= nullptr*/, const std::string& new_printer_name /*= ""*/)
{
	if (presets == nullptr) presets = m_presets;
	// Display a dialog showing the dirty options in a human readable form.
	auto old_preset = presets->get_edited_preset();
	auto type_name = presets->name();
	auto tab = "          ";
	auto name = old_preset.is_default ?
		_(L("Default ")) + type_name + _(L(" preset")) :
		(type_name + _(L(" preset\n")) + tab + old_preset.name);
	// Collect descriptions of the dirty options.
	std::vector<std::string> option_names;
	for(auto opt_key: presets->current_dirty_options()) {
		auto opt = m_config->def()->options.at(opt_key);
		std::string name = "";
		if (!opt.category.empty())
			name += opt.category + " > ";
		name += !opt.full_label.empty() ?
				opt.full_label : 
				opt.label;
		option_names.push_back(name);
	}
	// Show a confirmation dialog with the list of dirty options.
	std::string changes = "";
	for (auto changed_name : option_names)
		changes += tab + changed_name + "\n";
	auto message = (!new_printer_name.empty()) ?
		name + _(L("\n\nis not compatible with printer\n")) +tab + new_printer_name+ _(L("\n\nand it has the following unsaved changes:")) :
		name + _(L("\n\nhas the following unsaved changes:"));
	auto confirm = new wxMessageDialog(parent(),
		message + "\n" +changes +_(L("\n\nDiscard changes and continue anyway?")),
		_(L("Unsaved Changes")), wxYES_NO | wxNO_DEFAULT | wxICON_QUESTION);
	return confirm->ShowModal() == wxID_YES;
}

void Tab::OnTreeSelChange(wxTreeEvent& event)
{
	if (m_disable_tree_sel_changed_event) return;
	wxWindowUpdateLocker noUpdates(this);

	Page* page = nullptr;
	auto selection = m_treectrl->GetItemText(m_treectrl->GetSelection());
	for (auto p : m_pages)
		if (p->title() == selection)
		{
			page = p.get();
			m_is_nonsys_values = page->m_is_nonsys_values;
			m_is_modified_values = page->m_is_modified_values;
			break;
		}
	if (page == nullptr) return;

	for (auto& el : m_pages)
		el.get()->Hide();
	page->Show();
	m_hsizer->Layout();
	Refresh();

	update_undo_buttons();
}

void Tab::OnKeyDown(wxKeyEvent& event)
{
	if (event.GetKeyCode() == WXK_TAB)
		m_treectrl->Navigate(event.ShiftDown() ? wxNavigationKeyEvent::IsBackward : wxNavigationKeyEvent::IsForward);
	else
		event.Skip();
}

// Save the current preset into file.
// This removes the "dirty" flag of the preset, possibly creates a new preset under a new name,
// and activates the new preset.
// Wizard calls save_preset with a name "My Settings", otherwise no name is provided and this method
// opens a Slic3r::GUI::SavePresetWindow dialog.
void Tab::save_preset(std::string name /*= ""*/)
{
	// since buttons(and choices too) don't get focus on Mac, we set focus manually
	// to the treectrl so that the EVT_* events are fired for the input field having
	// focus currently.is there anything better than this ?
//!	m_treectrl->OnSetFocus();

	if (name.empty()) {
		auto preset = m_presets->get_selected_preset();
		auto default_name = preset.is_default ? "Untitled" : preset.name;
 		bool have_extention = boost::iends_with(default_name, ".ini");
		if (have_extention)
		{
			size_t len = default_name.length()-4;
			default_name.resize(len);
		}
		//[map $_->name, grep !$_->default && !$_->external, @{$self->{presets}}],
		std::vector<std::string> values;
		for (size_t i = 0; i < m_presets->size(); ++i) {
			const Preset &preset = m_presets->preset(i);
			if (preset.is_default || preset.is_system || preset.is_external)
				continue;
			values.push_back(preset.name);
		}

		auto dlg = new SavePresetWindow(parent());
		dlg->build(title(), default_name, values);	
		if (dlg->ShowModal() != wxID_OK)
			return;
		name = dlg->get_name();
		if (name == ""){
			show_error(this, _(L("The supplied name is empty. It can't be saved.")));
			return;
		}
		const Preset *existing = m_presets->find_preset(name, false);
		if (existing && (existing->is_default || existing->is_system)) {
			show_error(this, _(L("Cannot overwrite a system profile.")));
			return;
		}
		if (existing && (existing->is_external)) {
			show_error(this, _(L("Cannot overwrite an external.")));
			return;
		}
	}

	// Save the preset into Slic3r::data_dir / presets / section_name / preset_name.ini
	m_presets->save_current_preset(name);
	// Mark the print & filament enabled if they are compatible with the currently selected preset.
	m_preset_bundle->update_compatible_with_printer(false);
	// Add the new item into the UI component, remove dirty flags and activate the saved item.
	update_tab_ui();
	// Update the selection boxes at the platter.
	on_presets_changed();

	if (m_name == "printer")
		static_cast<TabPrinter*>(this)->m_initial_extruders_count = static_cast<TabPrinter*>(this)->m_extruders_count;
	update_changed_ui();
}

// Called for a currently selected preset.
void Tab::delete_preset()
{
	auto current_preset = m_presets->get_selected_preset();
	// Don't let the user delete the ' - default - ' configuration.
	wxString action = current_preset.is_external ? _(L("remove")) : _(L("delete"));
	wxString msg = _(L("Are you sure you want to ")) + action + _(L(" the selected preset?"));
	action = current_preset.is_external ? _(L("Remove")) : _(L("Delete"));
	wxString title = action + _(L(" Preset"));
	if (current_preset.is_default ||
		wxID_YES != wxMessageDialog(parent(), msg, title, wxYES_NO | wxNO_DEFAULT | wxICON_QUESTION).ShowModal())
		return;
	// Delete the file and select some other reasonable preset.
	// The 'external' presets will only be removed from the preset list, their files will not be deleted.
	try{ m_presets->delete_current_preset(); }
	catch (const std::exception &e)
	{
		return;
	}
	// Load the newly selected preset into the UI, update selection combo boxes with their dirty flags.
	load_current_preset();
}

void Tab::toggle_show_hide_incompatible()
{
	m_show_incompatible_presets = !m_show_incompatible_presets;
	update_show_hide_incompatible_button();
	update_tab_ui();
}

void Tab::update_show_hide_incompatible_button()
{
	m_btn_hide_incompatible_presets->SetBitmap(m_show_incompatible_presets ?
		m_bmp_show_incompatible_presets : m_bmp_hide_incompatible_presets);
	m_btn_hide_incompatible_presets->SetToolTip(m_show_incompatible_presets ?
		"Both compatible an incompatible presets are shown. Click to hide presets not compatible with the current printer." :
		"Only compatible presets are shown. Click to show both the presets compatible and not compatible with the current printer.");
}

void Tab::update_ui_from_settings()
{
	// Show the 'show / hide presets' button only for the print and filament tabs, and only if enabled
	// in application preferences.
	m_show_btn_incompatible_presets = get_app_config()->get("show_incompatible_presets")[0] == '1' ? true : false;
	bool show = m_show_btn_incompatible_presets && m_presets->name().compare("printer") != 0;
	show ? m_btn_hide_incompatible_presets->Show() :  m_btn_hide_incompatible_presets->Hide();
	// If the 'show / hide presets' button is hidden, hide the incompatible presets.
	if (show) {
		update_show_hide_incompatible_button();
	}
	else {
		if (m_show_incompatible_presets) {
			m_show_incompatible_presets = false;
			update_tab_ui();
		}
	}
}

// Return a callback to create a Tab widget to mark the preferences as compatible / incompatible to the current printer.
wxSizer* Tab::compatible_printers_widget(wxWindow* parent, wxCheckBox** checkbox, wxButton** btn)
{
	*checkbox = new wxCheckBox(parent, wxID_ANY, _(L("All")));
	*btn = new wxButton(parent, wxID_ANY, _(L(" Set "))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);

	(*btn)->SetBitmap(wxBitmap(from_u8(Slic3r::var("printer_empty.png")), wxBITMAP_TYPE_PNG));

	auto sizer = new wxBoxSizer(wxHORIZONTAL);
	sizer->Add((*checkbox), 0, wxALIGN_CENTER_VERTICAL);
	sizer->Add((*btn), 0, wxALIGN_CENTER_VERTICAL);

	(*checkbox)->Bind(wxEVT_CHECKBOX, ([=](wxCommandEvent e)
	{
		(*btn)->Enable(!(*checkbox)->GetValue());
		// All printers have been made compatible with this preset.
		if ((*checkbox)->GetValue())
			load_key_value("compatible_printers", std::vector<std::string> {});
		get_field("compatible_printers_condition")->toggle((*checkbox)->GetValue());
		update_changed_ui();
	}) );

	(*btn)->Bind(wxEVT_BUTTON, ([this, parent, checkbox, btn](wxCommandEvent e)
	{
		// # Collect names of non-default non-external printer profiles.
		PresetCollection *printers = &m_preset_bundle->printers;
		wxArrayString presets;
		for (size_t idx = 0; idx < printers->size(); ++idx)
		{
			Preset& preset = printers->preset(idx);
			if (!preset.is_default && !preset.is_external && !preset.is_system)
				presets.Add(preset.name);
		}

		auto dlg = new wxMultiChoiceDialog(parent,
		_(L("Select the printers this profile is compatible with.")),
		_(L("Compatible printers")),  presets);
		// # Collect and set indices of printers marked as compatible.
		wxArrayInt selections;
		auto *compatible_printers = dynamic_cast<const ConfigOptionStrings*>(m_config->option("compatible_printers"));
		if (compatible_printers != nullptr || !compatible_printers->values.empty())
			for (auto preset_name : compatible_printers->values)
				for (size_t idx = 0; idx < presets.GetCount(); ++idx)
					if (presets[idx].compare(preset_name) == 0)
					{
						selections.Add(idx);
						break;
					}
		dlg->SetSelections(selections);
		std::vector<std::string> value;
		// Show the dialog.
		if (dlg->ShowModal() == wxID_OK) {
			selections.Clear();
			selections = dlg->GetSelections();
			for (auto idx : selections)
				value.push_back(presets[idx].ToStdString());
			if (value.empty()) {
				(*checkbox)->SetValue(1);
				(*btn)->Disable();
			}
			// All printers have been made compatible with this preset.
			load_key_value("compatible_printers", value);
			update_changed_ui();
		}
	}));
	return sizer; 
}

void Tab::update_presetsctrl(wxDataViewTreeCtrl* ui, bool show_incompatible)
{
	if (ui == nullptr)
		return;
	ui->Freeze();
	ui->DeleteAllItems();
	auto presets = m_presets->get_presets();
	auto idx_selected = m_presets->get_idx_selected();
	auto suffix_modified = m_presets->get_suffix_modified();
	int icon_compatible = 0;
	int icon_incompatible = 1;
	int cnt_items = 0;

	auto root_sys = ui->AppendContainer(wxDataViewItem(0), _(L("System presets")));
	auto root_def = ui->AppendContainer(wxDataViewItem(0), _(L("Default presets")));

	auto show_def = get_app_config()->get("no_defaults")[0] != '1';

	for (size_t i = presets.front().is_visible ? 0 : 1; i < presets.size(); ++i) {
		const Preset &preset = presets[i];
		if (!preset.is_visible || (!show_incompatible && !preset.is_compatible && i != idx_selected))
			continue;

		auto preset_name = wxString::FromUTF8((preset.name + (preset.is_dirty ? suffix_modified : "")).c_str());

		wxDataViewItem item;
		if (preset.is_system)
			item = ui->AppendItem(root_sys, preset_name,
			preset.is_compatible ? icon_compatible : icon_incompatible);
		else if (show_def && preset.is_default)
			item = ui->AppendItem(root_def, preset_name,
			preset.is_compatible ? icon_compatible : icon_incompatible);
		else
		{
			auto parent = m_presets->get_preset_parent(preset);
			if (parent == nullptr)
				item = ui->AppendItem(root_def, preset_name,
				preset.is_compatible ? icon_compatible : icon_incompatible);
			else
			{
				auto parent_name = parent->name;

				wxDataViewTreeStoreContainerNode *node = ui->GetStore()->FindContainerNode(root_sys);
				if (node)
				{
					wxDataViewTreeStoreNodeList::iterator iter;
					for (iter = node->GetChildren().begin(); iter != node->GetChildren().end(); iter++)
					{
						wxDataViewTreeStoreNode* child = *iter;
						auto child_item = child->GetItem();
						auto item_text = ui->GetItemText(child_item);
						if (item_text == parent_name)
						{
							auto added_child = ui->AppendItem(child->GetItem(), preset_name,
								preset.is_compatible ? icon_compatible : icon_incompatible);
							if (!added_child){
								ui->DeleteItem(child->GetItem());
								auto new_parent = ui->AppendContainer(root_sys, parent_name,
									preset.is_compatible ? icon_compatible : icon_incompatible);
								ui->AppendItem(new_parent, preset_name,
									preset.is_compatible ? icon_compatible : icon_incompatible);
							}
							break;
						}
					}
				}
			}
		}

		cnt_items++;
		if (i == idx_selected){
			ui->Select(item);
			m_cc_presets_choice->SetText(preset_name);
		}
	}
	if (ui->GetStore()->GetChildCount(root_def) == 0)
		ui->DeleteItem(root_def);

	ui->Thaw();
}

void Tab::update_tab_presets(wxComboCtrl* ui, bool show_incompatible)
{
	if (ui == nullptr)
		return;
	ui->Freeze();
	ui->Clear();
	auto presets = m_presets->get_presets();
	auto idx_selected = m_presets->get_idx_selected();
	auto suffix_modified = m_presets->get_suffix_modified();
	int icon_compatible = 0;
	int icon_incompatible = 1;
	int cnt_items = 0;

	wxDataViewTreeCtrlComboPopup* popup = wxDynamicCast(m_cc_presets_choice->GetPopupControl(), wxDataViewTreeCtrlComboPopup);
	if (popup != nullptr)
	{
		popup->DeleteAllItems();

		auto root_sys = popup->AppendContainer(wxDataViewItem(0), _(L("System presets")));
		auto root_def = popup->AppendContainer(wxDataViewItem(0), _(L("Default presets")));

		auto show_def = get_app_config()->get("no_defaults")[0] != '1';

		for (size_t i = presets.front().is_visible ? 0 : 1; i < presets.size(); ++i) {
			const Preset &preset = presets[i];
			if (!preset.is_visible || (!show_incompatible && !preset.is_compatible && i != idx_selected))
				continue;

			auto preset_name = wxString::FromUTF8((preset.name + (preset.is_dirty ? suffix_modified : "")).c_str());

			wxDataViewItem item;
			if (preset.is_system)
				item = popup->AppendItem(root_sys, preset_name, 
										 preset.is_compatible ? icon_compatible : icon_incompatible);
			else if (show_def && preset.is_default)
				item = popup->AppendItem(root_def, preset_name, 
										 preset.is_compatible ? icon_compatible : icon_incompatible);
			else 
			{
				auto parent = m_presets->get_preset_parent(preset);
				if (parent == nullptr)
					item = popup->AppendItem(root_def, preset_name,
											 preset.is_compatible ? icon_compatible : icon_incompatible);
				else
				{
					auto parent_name = parent->name;

					wxDataViewTreeStoreContainerNode *node = popup->GetStore()->FindContainerNode(root_sys);
					if (node) 
					{
						wxDataViewTreeStoreNodeList::iterator iter;
						for (iter = node->GetChildren().begin(); iter != node->GetChildren().end(); iter++)
						{
							wxDataViewTreeStoreNode* child = *iter;
							auto child_item = child->GetItem();
							auto item_text = popup->GetItemText(child_item);
							if (item_text == parent_name)
							{
								auto added_child = popup->AppendItem(child->GetItem(), preset_name,
									preset.is_compatible ? icon_compatible : icon_incompatible);
								if (!added_child){
									popup->DeleteItem(child->GetItem());
									auto new_parent = popup->AppendContainer(root_sys, parent_name,
										preset.is_compatible ? icon_compatible : icon_incompatible);
									popup->AppendItem(new_parent, preset_name,
										preset.is_compatible ? icon_compatible : icon_incompatible);
								}
								break;
							}
						}
					}
				}
			}

			cnt_items++;
			if (i == idx_selected){
				popup->Select(item);
				m_cc_presets_choice->SetText(preset_name);
			}
		}
		if (popup->GetStore()->GetChildCount(root_def) == 0)
			popup->DeleteItem(root_def);
	}
	ui->Thaw();
}

void Tab::fill_icon_descriptions()
{
	m_icon_descriptions.push_back(t_icon_description(&m_bmp_value_lock, L("LOCKED LOCK;"
		"indicates about same values compared with system values in current option group")));

	m_icon_descriptions.push_back(t_icon_description(&m_bmp_value_unlock, L("UNLOCKED LOCK;"
		"indicates about some value changes compared with system values in current option group.\n"
		"Click the UNLOCKED LOCK to revert all values in current option group to system values.")));

	m_icon_descriptions.push_back(t_icon_description(&m_bmp_white_bullet, L("WHITE BULLET;"
		"indicates about : \n - nonsystem preset (on left button)"
		"\n - same values compared with last saved preset values in current option group(on right button)")));

	m_icon_descriptions.push_back(t_icon_description(&m_bmp_value_revert, L("BACK ARROW;"
		"indicates about some value changes compared with last saved preset values in current option group.\n"
		"Click the BACK ARROW to revert all values in current option group to last saved preset values.")));
}

void Page::reload_config()
{
	for (auto group : m_optgroups)
		group->reload_config();
}

Field* Page::get_field(const t_config_option_key& opt_key, int opt_index /*= -1*/) const
{
	Field* field = nullptr;
	for (auto opt : m_optgroups){
		field = opt->get_fieldc(opt_key, opt_index);
		if (field != nullptr)
			return field;
	}
	return field;
}

bool Page::set_value(const t_config_option_key& opt_key, const boost::any& value){
	bool changed = false;
	for(auto optgroup: m_optgroups) {
		if (optgroup->set_value(opt_key, value))
			changed = 1 ;
	}
	return changed;
}

// package Slic3r::GUI::Tab::Page;
ConfigOptionsGroupShp Page::new_optgroup(const wxString& title, int noncommon_label_width /*= -1*/)
{
	//! config_ have to be "right"
	ConfigOptionsGroupShp optgroup = std::make_shared<ConfigOptionsGroup>(this, title, m_config, true);
	if (noncommon_label_width >= 0)
		optgroup->label_width = noncommon_label_width;

	optgroup->m_on_change = [this](t_config_option_key opt_key, boost::any value){
		//! This function will be called from OptionGroup.
		//! Using of CallAfter is redundant.
		//! And in some cases it causes update() function to be recalled again
//!        wxTheApp->CallAfter([this, opt_key, value]() {
			static_cast<Tab*>(GetParent())->update_dirty();
			static_cast<Tab*>(GetParent())->on_value_change(opt_key, value);
//!        });
	};

	optgroup->m_get_initial_config = [this](){
		DynamicPrintConfig config = static_cast<Tab*>(GetParent())->m_presets->get_selected_preset().config;
		return config;
	};

	optgroup->m_get_sys_config = [this](){
		DynamicPrintConfig config = static_cast<Tab*>(GetParent())->m_presets->get_selected_preset_parent()->config;
		return config;
	};

	optgroup->have_sys_config = [this](){
		return static_cast<Tab*>(GetParent())->m_presets->get_selected_preset_parent() != nullptr;
	};

//	optgroup->nonsys_btn_icon = m_bmp_non_system;

	vsizer()->Add(optgroup->sizer, 0, wxEXPAND | wxALL, 10);
	m_optgroups.push_back(optgroup);

	return optgroup;
}

void SavePresetWindow::build(const wxString& title, const std::string& default_name, std::vector<std::string> &values)
{
	auto text = new wxStaticText(this, wxID_ANY, _(L("Save ")) + title + _(L(" as:")), 
									wxDefaultPosition, wxDefaultSize);
	m_combo = new wxComboBox(this, wxID_ANY, from_u8(default_name), 
							wxDefaultPosition, wxDefaultSize, 0, 0, wxTE_PROCESS_ENTER);
	for (auto value : values)
		m_combo->Append(from_u8(value));
	auto buttons = CreateStdDialogButtonSizer(wxOK | wxCANCEL);

	auto sizer = new wxBoxSizer(wxVERTICAL);
	sizer->Add(text, 0, wxEXPAND | wxALL, 10);
	sizer->Add(m_combo, 0, wxEXPAND | wxLEFT | wxRIGHT, 10);
	sizer->Add(buttons, 0, wxALIGN_CENTER_HORIZONTAL | wxALL, 10);

	wxButton* btn = static_cast<wxButton*>(FindWindowById(wxID_OK, this));
	btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent&) { accept(); });
	m_combo->Bind(wxEVT_TEXT_ENTER, [this](wxCommandEvent&) { accept(); });

	SetSizer(sizer);
	sizer->SetSizeHints(this);
}

void SavePresetWindow::accept()
{
	m_chosen_name = normalize_utf8_nfc(m_combo->GetValue().ToUTF8());
	if (!m_chosen_name.empty()) {
		const char* unusable_symbols = "<>:/\\|?*\"";
		bool is_unusable_symbol = false;
		for (size_t i = 0; i < std::strlen(unusable_symbols); i++){
			if (m_chosen_name.find_first_of(unusable_symbols[i]) != std::string::npos){
				is_unusable_symbol = true;
				break;
			}
		}
		if (is_unusable_symbol) {
			show_error(this, _(L("The supplied name is not valid; the following characters are not allowed:"))+" <>:/\\|?*\"");
		}
		else if (m_chosen_name.compare("- default -") == 0) {
			show_error(this, _(L("The supplied name is not available.")));
		}
		else {
			EndModal(wxID_OK);
		}
	}
}

} // GUI
} // Slic3r