#include "wxExtensions.hpp"

#include <stdexcept>
#include <cmath>

#include <wx/sizer.h>

#include <boost/algorithm/string/replace.hpp>

#include "BitmapCache.hpp"
#include "GUI.hpp"
#include "GUI_App.hpp"
#include "GUI_ObjectList.hpp"
#include "I18N.hpp"
#include "GUI_Utils.hpp"
#include "Plater.hpp"
#include "../Utils/MacDarkMode.hpp"
#include "BitmapComboBox.hpp"
#include "Widgets/StaticBox.hpp"
#include "Widgets/Label.hpp"

#ifndef __linux__
// msw_menuitem_bitmaps is used for MSW and OSX
static std::map<int, std::string> msw_menuitem_bitmaps;
#ifdef __WXMSW__
void msw_rescale_menu(wxMenu* menu)
{
	struct update_icons {
		static void run(wxMenuItem* item) {
			const auto it = msw_menuitem_bitmaps.find(item->GetId());
			if (it != msw_menuitem_bitmaps.end()) {
				const wxBitmap& item_icon = create_menu_bitmap(it->second);
				if (item_icon.IsOk())
					item->SetBitmap(item_icon);
			}
			if (item->IsSubMenu())
				for (wxMenuItem *sub_item : item->GetSubMenu()->GetMenuItems())
					update_icons::run(sub_item);
		}
	};

	for (wxMenuItem *item : menu->GetMenuItems())
		update_icons::run(item);
}
#endif /* __WXMSW__ */
#endif /* no __WXGTK__ */

void enable_menu_item(wxUpdateUIEvent& evt, std::function<bool()> const cb_condition, wxMenuItem* item, wxWindow* win)
{
    const bool enable = cb_condition();
    evt.Enable(enable);

#ifdef __WXOSX__
    const auto it = msw_menuitem_bitmaps.find(item->GetId());
    if (it != msw_menuitem_bitmaps.end())
    {
        const wxBitmap& item_icon = create_scaled_bitmap(it->second, win, 16, !enable);
        if (item_icon.IsOk())
            item->SetBitmap(item_icon);
    }
#endif // __WXOSX__
}

wxMenuItem* append_menu_item(wxMenu* menu, int id, const wxString& string, const wxString& description,
    std::function<void(wxCommandEvent& event)> cb, const wxBitmap& icon, wxEvtHandler* event_handler,
    std::function<bool()> const cb_condition, wxWindow* parent, int insert_pos/* = wxNOT_FOUND*/)
{
    if (id == wxID_ANY)
        id = wxNewId();

    auto *item = new wxMenuItem(menu, id, string, description);
    if (icon.IsOk()) {
        item->SetBitmap(icon);
    }
    if (insert_pos == wxNOT_FOUND)
        menu->Append(item);
    else
        menu->Insert(insert_pos, item);

#ifdef __WXMSW__
    if (event_handler != nullptr && event_handler != menu)
        event_handler->Bind(wxEVT_MENU, cb, id);
    else
#endif // __WXMSW__
        menu->Bind(wxEVT_MENU, cb, id);

    if (parent) {
        parent->Bind(wxEVT_UPDATE_UI, [cb_condition, item, parent](wxUpdateUIEvent& evt) {
            enable_menu_item(evt, cb_condition, item, parent); }, id);
    }

    return item;
}

wxMenuItem* append_menu_item(wxMenu* menu, int id, const wxString& string, const wxString& description,
    std::function<void(wxCommandEvent& event)> cb, const std::string& icon, wxEvtHandler* event_handler,
    std::function<bool()> const cb_condition, wxWindow* parent, int insert_pos/* = wxNOT_FOUND*/)
{
    if (id == wxID_ANY)
        id = wxNewId();

    const wxBitmap& bmp = !icon.empty() ? create_menu_bitmap(icon) : wxNullBitmap;   // FIXME: pass window ptr
//#ifdef __WXMSW__
#ifndef __WXGTK__
    if (bmp.IsOk())
        msw_menuitem_bitmaps[id] = icon;
#endif /* __WXMSW__ */

    return append_menu_item(menu, id, string, description, cb, bmp, event_handler, cb_condition, parent, insert_pos);
}

wxMenuItem* append_submenu(wxMenu* menu, wxMenu* sub_menu, int id, const wxString& string, const wxString& description, const std::string& icon,
    std::function<bool()> const cb_condition, wxWindow* parent)
{
    if (id == wxID_ANY)
        id = wxNewId();

    wxMenuItem* item = new wxMenuItem(menu, id, string, description, wxITEM_NORMAL, sub_menu);
    if (!icon.empty()) {
        item->SetBitmap(create_menu_bitmap(icon));    // FIXME: pass window ptr
//#ifdef __WXMSW__
#ifndef __WXGTK__
        msw_menuitem_bitmaps[id] = icon;
#endif /* __WXMSW__ */
    }

    menu->Append(item);

    if (parent) {
        parent->Bind(wxEVT_UPDATE_UI, [cb_condition, item, parent](wxUpdateUIEvent& evt) {
            enable_menu_item(evt, cb_condition, item, parent); }, id);
    }

    return item;
}

wxMenuItem* append_menu_radio_item(wxMenu* menu, int id, const wxString& string, const wxString& description,
    std::function<void(wxCommandEvent& event)> cb, wxEvtHandler* event_handler)
{
    if (id == wxID_ANY)
        id = wxNewId();

    wxMenuItem* item = menu->AppendRadioItem(id, string, description);

#ifdef __WXMSW__
    if (event_handler != nullptr && event_handler != menu)
        event_handler->Bind(wxEVT_MENU, cb, id);
    else
#endif // __WXMSW__
        menu->Bind(wxEVT_MENU, cb, id);

    return item;
}

wxMenuItem* append_menu_check_item(wxMenu* menu, int id, const wxString& string, const wxString& description,
    std::function<void(wxCommandEvent & event)> cb, wxEvtHandler* event_handler,
    std::function<bool()> const enable_condition, std::function<bool()> const check_condition, wxWindow* parent)
{
    if (id == wxID_ANY)
        id = wxNewId();

    wxMenuItem* item = menu->AppendCheckItem(id, string, description);

#ifdef __WXMSW__
    if (event_handler != nullptr && event_handler != menu)
        event_handler->Bind(wxEVT_MENU, cb, id);
    else
#endif // __WXMSW__
        menu->Bind(wxEVT_MENU, cb, id);

    if (parent)
        parent->Bind(wxEVT_UPDATE_UI, [enable_condition, check_condition](wxUpdateUIEvent& evt)
            {
                evt.Enable(enable_condition());
                evt.Check(check_condition());
            }, id);

    return item;
}

const unsigned int wxCheckListBoxComboPopup::DefaultWidth = 200;
const unsigned int wxCheckListBoxComboPopup::DefaultHeight = 200;

bool wxCheckListBoxComboPopup::Create(wxWindow* parent)
{
    return wxCheckListBox::Create(parent, wxID_HIGHEST + 1, wxPoint(0, 0));
}

wxWindow* wxCheckListBoxComboPopup::GetControl()
{
    return this;
}

void wxCheckListBoxComboPopup::SetStringValue(const wxString& value)
{
    m_text = value;
}

wxString wxCheckListBoxComboPopup::GetStringValue() const
{
    return m_text;
}

wxSize wxCheckListBoxComboPopup::GetAdjustedSize(int minWidth, int prefHeight, int maxHeight)
{
    // set width dinamically in dependence of items text
    // and set height dinamically in dependence of items count

    wxComboCtrl* cmb = GetComboCtrl();
    if (cmb != nullptr) {
        wxSize size = GetComboCtrl()->GetSize();

        unsigned int count = GetCount();
        if (count > 0) {
            int max_width = size.x;
            for (unsigned int i = 0; i < count; ++i) {
                max_width = std::max(max_width, 60 + GetTextExtent(GetString(i)).x);
            }
            size.SetWidth(max_width);
            size.SetHeight(count * cmb->GetCharHeight());
        }
        else
            size.SetHeight(DefaultHeight);

        return size;
    }
    else
        return wxSize(DefaultWidth, DefaultHeight);
}

void wxCheckListBoxComboPopup::OnKeyEvent(wxKeyEvent& evt)
{
    // filters out all the keys which are not working properly
    switch (evt.GetKeyCode())
    {
    case WXK_LEFT:
    case WXK_UP:
    case WXK_RIGHT:
    case WXK_DOWN:
    case WXK_PAGEUP:
    case WXK_PAGEDOWN:
    case WXK_END:
    case WXK_HOME:
    case WXK_NUMPAD_LEFT:
    case WXK_NUMPAD_UP:
    case WXK_NUMPAD_RIGHT:
    case WXK_NUMPAD_DOWN:
    case WXK_NUMPAD_PAGEUP:
    case WXK_NUMPAD_PAGEDOWN:
    case WXK_NUMPAD_END:
    case WXK_NUMPAD_HOME:
    {
        break;
    }
    default:
    {
        evt.Skip();
        break;
    }
    }
}

void wxCheckListBoxComboPopup::OnCheckListBox(wxCommandEvent& evt)
{
    // forwards the checklistbox event to the owner wxComboCtrl

    if (m_check_box_events_status == OnCheckListBoxFunction::FreeToProceed )
    {
        wxComboCtrl* cmb = GetComboCtrl();
        if (cmb != nullptr) {
            wxCommandEvent event(wxEVT_CHECKLISTBOX, cmb->GetId());
            event.SetEventObject(cmb);
            cmb->ProcessWindowEvent(event);
        }
    }

    evt.Skip();

    #ifndef _WIN32  // events are sent differently on OSX+Linux vs Win (more description in header file)
        if ( m_check_box_events_status == OnCheckListBoxFunction::RefuseToProceed )
            // this happens if the event was resent by OnListBoxSelection - next call to OnListBoxSelection is due to user clicking the text, so the function should
            // explicitly change the state on the checkbox
            m_check_box_events_status = OnCheckListBoxFunction::WasRefusedLastTime;
        else
            // if the user clicked the checkbox square, this event was sent before OnListBoxSelection was called, so we don't want it to resend it
            m_check_box_events_status = OnCheckListBoxFunction::RefuseToProceed;
    #endif
}

void wxCheckListBoxComboPopup::OnListBoxSelection(wxCommandEvent& evt)
{
    // transforms list box item selection event into checklistbox item toggle event 

    int selId = GetSelection();
    if (selId != wxNOT_FOUND)
    {
        #ifndef _WIN32
            if (m_check_box_events_status == OnCheckListBoxFunction::RefuseToProceed)
        #endif
                Check((unsigned int)selId, !IsChecked((unsigned int)selId));

        m_check_box_events_status = OnCheckListBoxFunction::FreeToProceed; // so the checkbox reacts to square-click the next time

        SetSelection(wxNOT_FOUND);
        wxCommandEvent event(wxEVT_CHECKLISTBOX, GetId());
        event.SetInt(selId);
        event.SetEventObject(this);
        ProcessEvent(event);
    }
}


// ***  wxDataViewTreeCtrlComboPopup  ***

const unsigned int wxDataViewTreeCtrlComboPopup::DefaultWidth = 270;
const unsigned int wxDataViewTreeCtrlComboPopup::DefaultHeight = 200;
const unsigned int wxDataViewTreeCtrlComboPopup::DefaultItemHeight = 22;

bool wxDataViewTreeCtrlComboPopup::Create(wxWindow* parent)
{
	return wxDataViewTreeCtrl::Create(parent, wxID_ANY/*HIGHEST + 1*/, wxPoint(0, 0), wxDefaultSize/*wxSize(270, -1)*/, wxDV_NO_HEADER);
}
/*
wxSize wxDataViewTreeCtrlComboPopup::GetAdjustedSize(int minWidth, int prefHeight, int maxHeight)
{
	// matches owner wxComboCtrl's width
	// and sets height dinamically in dependence of contained items count
	wxComboCtrl* cmb = GetComboCtrl();
	if (cmb != nullptr)
	{
		wxSize size = GetComboCtrl()->GetSize();
		if (m_cnt_open_items > 0)
			size.SetHeight(m_cnt_open_items * DefaultItemHeight);
		else
			size.SetHeight(DefaultHeight);

		return size;
	}
	else
		return wxSize(DefaultWidth, DefaultHeight);
}
*/
void wxDataViewTreeCtrlComboPopup::OnKeyEvent(wxKeyEvent& evt)
{
	// filters out all the keys which are not working properly
	if (evt.GetKeyCode() == WXK_UP)
	{
		return;
	}
	else if (evt.GetKeyCode() == WXK_DOWN)
	{
		return;
	}
	else
	{
		evt.Skip();
		return;
	}
}

void wxDataViewTreeCtrlComboPopup::OnDataViewTreeCtrlSelection(wxCommandEvent& evt)
{
	wxComboCtrl* cmb = GetComboCtrl();
	auto selected = GetItemText(GetSelection());
	cmb->SetText(selected);
}

// edit tooltip : change Slic3r to SLIC3R_APP_KEY
// Temporary workaround for localization
void edit_tooltip(wxString& tooltip)
{
    tooltip.Replace("Slic3r", SLIC3R_APP_KEY, true);
}

/* Function for rescale of buttons in Dialog under MSW if dpi is changed.
 * btn_ids - vector of buttons identifiers
 */
void msw_buttons_rescale(wxDialog* dlg, const int em_unit, const std::vector<int>& btn_ids)
{
    const wxSize& btn_size = wxSize(-1, int(2.5f * em_unit + 0.5f));

    for (int btn_id : btn_ids) {
        // There is a case [FirmwareDialog], when we have wxControl instead of wxButton
        // so let casting everything to the wxControl
        wxControl* btn = static_cast<wxControl*>(dlg->FindWindowById(btn_id, dlg));
        if (btn)
            btn->SetMinSize(btn_size);
    }
}

/* Function for getting of em_unit value from correct parent.
 * In most of cases it is m_em_unit value from GUI_App,
 * but for DPIDialogs it's its own value. 
 * This value will be used to correct rescale after moving between 
 * Displays with different HDPI */
int em_unit(wxWindow* win)
{
    if (win)
    {
        wxTopLevelWindow *toplevel = Slic3r::GUI::find_toplevel_parent(win);
        Slic3r::GUI::DPIDialog* dlg = dynamic_cast<Slic3r::GUI::DPIDialog*>(toplevel);
        if (dlg)
            return dlg->em_unit();
        Slic3r::GUI::DPIFrame* frame = dynamic_cast<Slic3r::GUI::DPIFrame*>(toplevel);
        if (frame)
            return frame->em_unit();
    }
    
    return Slic3r::GUI::wxGetApp().em_unit();
}

int mode_icon_px_size()
{
#ifdef __APPLE__
    return 10;
#else
    return 12;
#endif
}

wxBitmap create_menu_bitmap(const std::string& bmp_name)
{
    return create_scaled_bitmap(bmp_name, nullptr, 16, false, "", true);
}

// win is used to get a correct em_unit value
// It's important for bitmaps of dialogs.
// if win == nullptr, em_unit value of MainFrame will be used
wxBitmap create_scaled_bitmap(  const std::string& bmp_name_in, 
                                wxWindow *win/* = nullptr*/,
                                const int px_cnt/* = 16*/, 
                                const bool grayscale/* = false*/,
                                const std::string& new_color/* = std::string()*/, // color witch will used instead of orange
                                const bool menu_bitmap/* = false*/,
                                const bool resize/* = false*/)
{
    static Slic3r::GUI::BitmapCache cache;

    unsigned int width = 0;
    unsigned int height = (unsigned int) (win->FromDIP(px_cnt) + 0.5f);

    std::string bmp_name = bmp_name_in;
    boost::replace_last(bmp_name, ".png", "");

    bool dark_mode = 
#ifdef _WIN32
    menu_bitmap ? Slic3r::GUI::check_dark_mode() :
#endif
    Slic3r::GUI::wxGetApp().dark_mode();

    // Try loading an SVG first, then PNG if SVG is not found:
    wxBitmap *bmp = cache.load_svg(bmp_name, width, height, grayscale, dark_mode, new_color, resize ? em_unit(win) * 0.1f : 0.f);
    if (bmp == nullptr) {
        bmp = cache.load_png(bmp_name, width, height, grayscale, resize ? em_unit(win) * 0.1f : 0.f);
    }

    if (bmp == nullptr) {
        // Neither SVG nor PNG has been found, raise error
        throw Slic3r::RuntimeError("Could not load bitmap: " + bmp_name);
    }

    return *bmp;
}

wxBitmap* get_default_extruder_color_icon(bool thin_icon/* = false*/)
{
    static Slic3r::GUI::BitmapCache bmp_cache;

    const double em = Slic3r::GUI::wxGetApp().em_unit();
    const int icon_width = lround((thin_icon ? 2 : 4.5) * em);
    const int icon_height = lround(2 * em);
    bool dark_mode = Slic3r::GUI::wxGetApp().dark_mode();

    wxClientDC cdc((wxWindow*)Slic3r::GUI::wxGetApp().mainframe);
    wxMemoryDC dc(&cdc);
    dc.SetFont(::Label::Body_12);

    wxString label = _L("default");
    std::string bitmap_key = std::string("default_color") + "-h" + std::to_string(icon_height) + "-w" + std::to_string(icon_width)
        + "-i" + label.ToStdString();

    wxBitmap* bitmap = bmp_cache.find(bitmap_key);
    if (bitmap == nullptr) {
        // Paint the color icon.
            //Slic3r::GUI::BitmapCache::parse_color(color, rgb);
            // there is no neede to scale created solid bitmap
        wxColor clr(255, 255, 255, 0);
        bitmap = bmp_cache.insert(bitmap_key, wxBitmap(icon_width, icon_height));
        dc.SelectObject(*bitmap);
        dc.SetBackground(wxBrush(clr));
        dc.Clear();
        dc.SetBrush(wxBrush(clr));
        dc.SetPen(*wxGREY_PEN);
        auto size = dc.GetTextExtent(wxString(label));
        dc.SetTextForeground(clr.GetLuminance() < 0.51 ? *wxWHITE : *wxBLACK);
        dc.DrawText(label, (icon_width - size.x) / 2, (icon_height - size.y) / 2);
        dc.SelectObject(wxNullBitmap);
    }

    return bitmap;
}

std::vector<wxBitmap*> get_extruder_color_icons(bool thin_icon/* = false*/)
{
    static Slic3r::GUI::BitmapCache bmp_cache;

    // Create the bitmap with color bars.
    std::vector<wxBitmap*> bmps;
    std::vector<std::string> colors = Slic3r::GUI::wxGetApp().plater()->get_extruder_colors_from_plater_config();

    if (colors.empty())
        return bmps;

    unsigned char rgb[3];

    /* It's supposed that standard size of an icon is 36px*16px for 100% scaled display.
     * So set sizes for solid_colored icons used for filament preset
     * and scale them in respect to em_unit value
     */
    const double em = Slic3r::GUI::wxGetApp().em_unit();
    const int icon_width = lround((thin_icon ? 2 : 4.5) * em);
    const int icon_height = lround(2 * em);

    bool dark_mode = Slic3r::GUI::wxGetApp().dark_mode();

    int index = 0;
    wxClientDC cdc((wxWindow*)Slic3r::GUI::wxGetApp().mainframe);
    wxMemoryDC dc(&cdc);
    dc.SetFont(::Label::Body_12);
    for (const std::string &color : colors)
    {
        auto label = std::to_string(++index);
        std::string bitmap_key = color + "-h" + std::to_string(icon_height) + "-w" + std::to_string(icon_width) 
                + "-i" + label;

        wxBitmap* bitmap = bmp_cache.find(bitmap_key);
        if (bitmap == nullptr) {
            // Paint the color icon.
            //Slic3r::GUI::BitmapCache::parse_color(color, rgb);
            // there is no neede to scale created solid bitmap
            wxColor clr(color);
            bitmap = bmp_cache.insert(bitmap_key, wxBitmap(icon_width, icon_height));
            dc.SelectObject(*bitmap);
            dc.SetBackground(wxBrush(clr));
            dc.Clear();
            if (clr.Red() > 224 && clr.Blue() > 224 && clr.Green() > 224) {
                dc.SetBrush(wxBrush(clr));
                dc.SetPen(*wxGREY_PEN);
                dc.DrawRectangle(0, 0, icon_width, icon_height);
            }
            auto size = dc.GetTextExtent(wxString(label));
            dc.SetTextForeground(clr.GetLuminance() < 0.51 ? *wxWHITE : *wxBLACK);
            dc.DrawText(label, (icon_width - size.x) / 2, (icon_height - size.y) / 2);
            dc.SelectObject(wxNullBitmap);
        }
        bmps.emplace_back(bitmap);
    }

    return bmps;
}

wxBitmap *get_extruder_color_icon(std::string color, std::string label, int icon_width, int icon_height)
{
    static Slic3r::GUI::BitmapCache bmp_cache;

    std::string bitmap_key = color + "-h" + std::to_string(icon_height) + "-w" + std::to_string(icon_width) + "-i" + label;

    wxBitmap *bitmap = bmp_cache.find(bitmap_key);
    if (bitmap == nullptr) {
        // Paint the color icon.
        // Slic3r::GUI::BitmapCache::parse_color(color, rgb);
        // there is no neede to scale created solid bitmap
        wxColor clr(color);
        bitmap = bmp_cache.insert(bitmap_key, wxBitmap(icon_width, icon_height));
#ifndef __WXMSW__
        wxMemoryDC dc;
#else
        wxClientDC cdc((wxWindow *) Slic3r::GUI::wxGetApp().mainframe);
        wxMemoryDC dc(&cdc);
#endif
        dc.SetFont(::Label::Body_12);
        dc.SelectObject(*bitmap);
        if (clr.Alpha() == 0) {
            int             size        = icon_height * 2;
            static wxBitmap transparent = *Slic3r::GUI::BitmapCache().load_svg("transparent", size, size);
            if (transparent.GetHeight() != size) transparent = *Slic3r::GUI::BitmapCache().load_svg("transparent", size, size);
            wxPoint pt(0, 0);
            while (pt.x < icon_width) {
                dc.DrawBitmap(transparent, pt);
                pt.x += size;
            }
            clr.SetRGB(0xffffff); // for text color
            dc.SetBrush(*wxTRANSPARENT_BRUSH);
        } else {
            dc.SetBackground(wxBrush(clr));
            dc.Clear();
            dc.SetBrush(wxBrush(clr));
        }
        if (clr.Red() > 224 && clr.Blue() > 224 && clr.Green() > 224) {
            dc.SetPen(*wxGREY_PEN);
            dc.DrawRectangle(0, 0, icon_width, icon_height);
        }
        auto size = dc.GetTextExtent(wxString(label));
        dc.SetTextForeground(clr.GetLuminance() < 0.51 ? *wxWHITE : *wxBLACK);
        dc.DrawText(label, (icon_width - size.x) / 2, (icon_height - size.y) / 2);
        dc.SelectObject(wxNullBitmap);
    }
    return bitmap;
}


void apply_extruder_selector(Slic3r::GUI::BitmapComboBox** ctrl, 
                             wxWindow* parent,
                             const std::string& first_item/* = ""*/, 
                             wxPoint pos/* = wxDefaultPosition*/,
                             wxSize size/* = wxDefaultSize*/,
                             bool use_thin_icon/* = false*/)
{
    std::vector<wxBitmap*> icons = get_extruder_color_icons(use_thin_icon);

    if (!*ctrl) {
        *ctrl = new Slic3r::GUI::BitmapComboBox(parent, wxID_ANY, wxEmptyString, pos, size, 0, nullptr, wxCB_READONLY);
        Slic3r::GUI::wxGetApp().UpdateDarkUI(*ctrl);
    }
    else
    {
        (*ctrl)->SetPosition(pos);
        (*ctrl)->SetMinSize(size);
        (*ctrl)->SetSize(size);
        (*ctrl)->Clear();
    }
    if (first_item.empty())
        (*ctrl)->Hide();    // to avoid unwanted rendering before layout (ExtruderSequenceDialog)

    if (icons.empty() && !first_item.empty()) {
        (*ctrl)->Append(_(first_item), wxNullBitmap);
        return;
    }

    // For ObjectList we use short extruder name (just a number)
    const bool use_full_item_name = dynamic_cast<Slic3r::GUI::ObjectList*>(parent) == nullptr;

    int i = 0;
    wxString str = _(L("Extruder"));
    for (wxBitmap* bmp : icons) {
        if (i == 0) {
            if (!first_item.empty())
                (*ctrl)->Append(_(first_item), *bmp);
            ++i;
        }

        (*ctrl)->Append(use_full_item_name
                        ? Slic3r::GUI::from_u8((boost::format("%1% %2%") % str % i).str())
                        : wxString::Format("%d", i), *bmp);
        ++i;
    }
    (*ctrl)->SetSelection(0);
}


// ----------------------------------------------------------------------------
// LockButton
// ----------------------------------------------------------------------------

LockButton::LockButton( wxWindow *parent, 
                        wxWindowID id, 
                        const wxPoint& pos /*= wxDefaultPosition*/, 
                        const wxSize& size /*= wxDefaultSize*/):
                        wxButton(parent, id, wxEmptyString, pos, size, wxBU_EXACTFIT | wxNO_BORDER)
{
    m_bmp_lock_closed   = ScalableBitmap(this, "lock_normal");
    m_bmp_lock_closed_f = ScalableBitmap(this, "lock_hover");
    m_bmp_lock_open     = ScalableBitmap(this, "unlock_normal");
    m_bmp_lock_open_f   = ScalableBitmap(this, "unlock_hover");

    Slic3r::GUI::wxGetApp().UpdateDarkUI(this);
    SetBitmap(m_bmp_lock_open.bmp());
    SetBitmapDisabled(m_bmp_lock_open.bmp());
    SetBitmapHover(m_bmp_lock_closed_f.bmp());

    //button events
    Bind(wxEVT_BUTTON, &LockButton::OnButton, this);
}

void LockButton::OnButton(wxCommandEvent& event)
{
    if (m_disabled)
        return;

    m_is_pushed = !m_is_pushed;
    update_button_bitmaps();

    event.Skip();
}

void LockButton::SetLock(bool lock)
{
    m_is_pushed = lock;
    update_button_bitmaps();
}

void LockButton::msw_rescale()
{
    m_bmp_lock_closed.msw_rescale();
    m_bmp_lock_closed_f.msw_rescale();
    m_bmp_lock_open.msw_rescale();
    m_bmp_lock_open_f.msw_rescale();

    update_button_bitmaps();
}

void LockButton::update_button_bitmaps()
{
    Slic3r::GUI::wxGetApp().UpdateDarkUI(this);
    SetBitmap(m_is_pushed ? m_bmp_lock_closed.bmp() : m_bmp_lock_open.bmp());
    SetBitmapHover(m_is_pushed ? m_bmp_lock_closed_f.bmp() : m_bmp_lock_open_f.bmp());

    Refresh();
    Update();
}



// ----------------------------------------------------------------------------
// ModeButton
// ----------------------------------------------------------------------------

ModeButton::ModeButton( wxWindow *          parent,
                        wxWindowID          id,
                        const std::string&  icon_name   /* = ""*/,
                        const wxString&     mode        /* = wxEmptyString*/,
                        const wxSize&       size        /* = wxDefaultSize*/,
                        const wxPoint&      pos         /* = wxDefaultPosition*/) :
    ScalableButton(parent, id, icon_name, mode, size, pos, wxBU_EXACTFIT)
{
    Init(mode);
}

ModeButton::ModeButton( wxWindow*           parent,
                        const wxString&     mode/* = wxEmptyString*/,
                        const std::string&  icon_name/* = ""*/,
                        int                 px_cnt/* = 16*/) :
    ScalableButton(parent, wxID_ANY, ScalableBitmap(parent, icon_name, px_cnt), mode, wxBU_EXACTFIT)
{
    Init(mode);
}

void ModeButton::Init(const wxString &mode)
{
    std::string mode_str = std::string(mode.ToUTF8());
    //m_tt_focused  = Slic3r::GUI::from_u8((boost::format(_utf8(L("Switch to the %s mode"))) % mode_str).str());
    //m_tt_selected = Slic3r::GUI::from_u8((boost::format(_utf8(L("Current mode is %s"))) % mode_str).str());

    SetBitmapMargins(3, 0);

    //button events
    Bind(wxEVT_BUTTON,          &ModeButton::OnButton, this);
    Bind(wxEVT_ENTER_WINDOW,    &ModeButton::OnEnterBtn, this);
    Bind(wxEVT_LEAVE_WINDOW,    &ModeButton::OnLeaveBtn, this);
}

void ModeButton::OnButton(wxCommandEvent& event)
{
    m_is_selected = true;
    focus_button(m_is_selected);

    event.Skip();
}

void ModeButton::SetState(const bool state)
{
    m_is_selected = state;
    focus_button(m_is_selected);
    SetToolTip(state ? m_tt_selected : m_tt_focused);
}

void ModeButton::focus_button(const bool focus)
{
    const wxFont& new_font = focus ? 
                             Slic3r::GUI::wxGetApp().bold_font() : 
                             Slic3r::GUI::wxGetApp().normal_font();

    SetFont(new_font);
#ifdef _WIN32
    GetParent()->Refresh(); // force redraw a background of the selected mode button
#else
    SetForegroundColour(wxSystemSettings::GetColour(focus ? wxSYS_COLOUR_BTNTEXT : 
#if defined (__linux__) && defined (__WXGTK3__)
        wxSYS_COLOUR_GRAYTEXT
#elif defined (__linux__) && defined (__WXGTK2__)
        wxSYS_COLOUR_BTNTEXT
#else 
        wxSYS_COLOUR_BTNSHADOW
#endif    
    ));
#endif /* no _WIN32 */

    Refresh();
    Update();
}


// ----------------------------------------------------------------------------
// ModeSizer
// ----------------------------------------------------------------------------

ModeSizer::ModeSizer(wxWindow *parent, int hgap/* = 0*/) :
    wxFlexGridSizer(3, 0, hgap),
    m_parent(parent),
    m_hgap_unscaled((double)(hgap)/em_unit(parent))
{
    SetFlexibleDirection(wxHORIZONTAL);

    std::vector < std::pair < wxString, std::string >> buttons = {
        //{_(L("Simple")),    "mode_simple"},
        //{_(L("Advanced")),  "mode_advanced"},
        //{_CTX(L_CONTEXT("Advanced", "Mode"), "Mode"), "mode_advanced"}
    };

    auto modebtnfn = [](wxCommandEvent &event, int mode_id) {
        Slic3r::GUI::wxGetApp().save_mode(mode_id);
        event.Skip();
    };
    
    m_mode_btns.reserve(3);
    for (const auto& button : buttons) {
        m_mode_btns.push_back(new ModeButton(parent, button.first, button.second, mode_icon_px_size()));

        m_mode_btns.back()->Bind(wxEVT_BUTTON, std::bind(modebtnfn, std::placeholders::_1, int(m_mode_btns.size() - 1)));
        Add(m_mode_btns.back());
    }
}

void ModeSizer::SetMode(const int mode)
{
    for (size_t m = 0; m < m_mode_btns.size(); m++)
        m_mode_btns[m]->SetState(int(m) == mode);
}

void ModeSizer::set_items_flag(int flag)
{
    for (wxSizerItem* item : this->GetChildren())
        item->SetFlag(flag);
}

void ModeSizer::set_items_border(int border)
{
    for (wxSizerItem* item : this->GetChildren())
        item->SetBorder(border);
}

void ModeSizer::msw_rescale()
{
    this->SetHGap(std::lround(m_hgap_unscaled * em_unit(m_parent)));
    for (size_t m = 0; m < m_mode_btns.size(); m++)
        m_mode_btns[m]->msw_rescale();
}

// ----------------------------------------------------------------------------
// MenuWithSeparators
// ----------------------------------------------------------------------------

void MenuWithSeparators::DestroySeparators()
{
    if (m_separator_frst) {
        Destroy(m_separator_frst);
        m_separator_frst = nullptr;
    }

    if (m_separator_scnd) {
        Destroy(m_separator_scnd);
        m_separator_scnd = nullptr;
    }
}

void MenuWithSeparators::SetFirstSeparator()
{
    m_separator_frst = this->AppendSeparator();
}

void MenuWithSeparators::SetSecondSeparator()
{
    m_separator_scnd = this->AppendSeparator();
}

// ----------------------------------------------------------------------------
// BambuBitmap
// ----------------------------------------------------------------------------
ScalableBitmap::ScalableBitmap( wxWindow *parent, 
                                const std::string& icon_name/* = ""*/,
                                const int px_cnt/* = 16*/, 
                                const bool grayscale/* = false*/,
                                const bool resize/* = false*/):
    m_parent(parent), m_icon_name(icon_name),
    m_px_cnt(px_cnt), m_grayscale(grayscale), m_resize(resize) // BBS: support resize by fill border
{
    m_bmp = create_scaled_bitmap(icon_name, parent, px_cnt, m_grayscale, std::string(), false, resize);
    if (px_cnt == 0) {
        m_px_cnt = m_bmp.GetHeight(); // scale
        unsigned int height = (unsigned int) (parent->FromDIP(m_px_cnt) + 0.5f);
        if (height != GetBmpHeight())
            msw_rescale();
    }
}

wxSize ScalableBitmap::GetBmpSize() const
{
#ifdef __APPLE__
    return m_bmp.GetScaledSize();
#else
    return m_bmp.GetSize();
#endif
}

int ScalableBitmap::GetBmpWidth() const
{
#ifdef __APPLE__
    return m_bmp.GetScaledWidth();
#else
    return m_bmp.GetWidth();
#endif
}

int ScalableBitmap::GetBmpHeight() const
{
#ifdef __APPLE__
    return m_bmp.GetScaledHeight();
#else
    return m_bmp.GetHeight();
#endif
}


void ScalableBitmap::msw_rescale()
{
    // BBS: support resize by fill border
    m_bmp = create_scaled_bitmap(m_icon_name, m_parent, m_px_cnt, m_grayscale, std::string(), false, m_resize);
}

// ----------------------------------------------------------------------------
// BambuButton
// ----------------------------------------------------------------------------

ScalableButton::ScalableButton( wxWindow *          parent,
                                wxWindowID          id,
                                const std::string&  icon_name /*= ""*/,
                                const wxString&     label /* = wxEmptyString*/,
                                const wxSize&       size /* = wxDefaultSize*/,
                                const wxPoint&      pos /* = wxDefaultPosition*/,
                                long                style /*= wxBU_EXACTFIT | wxNO_BORDER*/,
                                bool                use_default_disabled_bitmap/* = false*/,
                                int                 bmp_px_cnt/* = 16*/) :
    m_parent(parent),
    m_current_icon_name(icon_name),
    m_use_default_disabled_bitmap (use_default_disabled_bitmap),
    m_px_cnt(bmp_px_cnt),
    m_has_border(!(style & wxNO_BORDER))
{
    SetBackgroundColour(StaticBox::GetParentBackgroundColor(parent));
    Create(parent, id, label, pos, size, style);
    Slic3r::GUI::wxGetApp().UpdateDarkUI(this);

    if (!icon_name.empty()) {
        SetBitmap(create_scaled_bitmap(icon_name, parent, m_px_cnt));
        if (m_use_default_disabled_bitmap)
            SetBitmapDisabled(create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt, true));
        if (!label.empty())
            SetBitmapMargins(int(0.5* em_unit(parent)), 0);
    }

    if (size != wxDefaultSize)
    {
        const int em = em_unit(parent);
        m_width = size.x/em;
        m_height= size.y/em;
    }
}


ScalableButton::ScalableButton( wxWindow *          parent, 
                                wxWindowID          id,
                                const ScalableBitmap&  bitmap,
                                const wxString&     label /*= wxEmptyString*/, 
                                long                style /*= wxBU_EXACTFIT | wxNO_BORDER*/) :
    m_parent(parent),
    m_current_icon_name(bitmap.name()),
    m_px_cnt(bitmap.px_cnt()),
    m_has_border(!(style& wxNO_BORDER))
{
    Create(parent, id, label, wxDefaultPosition, wxDefaultSize, style);
    Slic3r::GUI::wxGetApp().UpdateDarkUI(this);

    SetBitmap(bitmap.bmp());
}

void ScalableButton::SetBitmap_(const ScalableBitmap& bmp)
{
    SetBitmap(bmp.bmp());
    m_current_icon_name = bmp.name();
}

bool ScalableButton::SetBitmap_(const std::string& bmp_name)
{
    m_current_icon_name = bmp_name;
    if (m_current_icon_name.empty())
        return false;

    wxBitmap bmp = create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt);
    SetBitmap(bmp);
    SetBitmapCurrent(bmp);
    SetBitmapPressed(bmp);
    SetBitmapFocus(bmp);
    if (m_use_default_disabled_bitmap)
        SetBitmapDisabled(create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt, true));
    return true;
}

void ScalableButton::SetBitmapDisabled_(const ScalableBitmap& bmp)
{
    SetBitmapDisabled(bmp.bmp());
    m_disabled_icon_name = bmp.name();
}

int ScalableButton::GetBitmapHeight()
{
#ifdef __APPLE__
    return GetBitmap().GetScaledHeight();
#else
    return GetBitmap().GetHeight();
#endif
}

void ScalableButton::UseDefaultBitmapDisabled()
{
    m_use_default_disabled_bitmap = true;
    SetBitmapDisabled(create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt, true));
}

void ScalableButton::msw_rescale()
{
    Slic3r::GUI::wxGetApp().UpdateDarkUI(this, m_has_border);

    if (!m_current_icon_name.empty()) {
        wxBitmap bmp = create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt);
        SetBitmap(bmp);
        // BBS: why disappear on hover? why current HBITMAP differ from other 
        //SetBitmapCurrent(bmp);
        //SetBitmapPressed(bmp);
        //SetBitmapFocus(bmp);
        if (!m_disabled_icon_name.empty())
            SetBitmapDisabled(create_scaled_bitmap(m_disabled_icon_name, m_parent, m_px_cnt));
        else if (m_use_default_disabled_bitmap)
            SetBitmapDisabled(create_scaled_bitmap(m_current_icon_name, m_parent, m_px_cnt, true));
    }

    if (m_width > 0 || m_height>0)
    {
        const int em = em_unit(m_parent);
        wxSize size(m_width * em, m_height * em);
        SetMinSize(size);
    }
}


// ----------------------------------------------------------------------------
// BlinkingBitmap
// ----------------------------------------------------------------------------

BlinkingBitmap::BlinkingBitmap(wxWindow* parent, const std::string& icon_name) :
    wxStaticBitmap(parent, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxSize(int(1.6 * Slic3r::GUI::wxGetApp().em_unit()), -1))
{
    bmp = ScalableBitmap(parent, icon_name);
}

void BlinkingBitmap::msw_rescale()
{
    bmp.msw_rescale();
    this->SetSize(bmp.GetBmpSize());
    this->SetMinSize(bmp.GetBmpSize());
}

void BlinkingBitmap::invalidate()
{
    this->SetBitmap(wxNullBitmap);
}

void BlinkingBitmap::activate()
{
    this->SetBitmap(bmp.bmp());
    show = true;
}

void BlinkingBitmap::blink()
{
    show = !show;
    this->SetBitmap(show ? bmp.bmp() : wxNullBitmap);
}


wxIMPLEMENT_CLASS(ImageTransientPopup,PopupWindow);

wxBEGIN_EVENT_TABLE(ImageTransientPopup,PopupWindow)
    EVT_MOUSE_EVENTS( ImageTransientPopup::OnMouse )
    EVT_SIZE( ImageTransientPopup::OnSize )
    EVT_SET_FOCUS( ImageTransientPopup::OnSetFocus )
    EVT_KILL_FOCUS( ImageTransientPopup::OnKillFocus )
wxEND_EVENT_TABLE()

ImageTransientPopup::ImageTransientPopup( wxWindow *parent, bool scrolled, wxBitmap bmp)
                     :PopupWindow( parent,
                                              wxBORDER_NONE |
                                              wxPU_CONTAINS_CONTROLS )
{
    m_panel = new wxScrolledWindow( this, wxID_ANY );
    m_panel->SetBackgroundColour( *wxLIGHT_GREY );

    // Keep this code to verify if mouse events work, they're required if
    // you're making a control like a combobox where the items are highlighted
    // under the cursor, the m_panel is set focus in the Popup() function
    m_panel->Bind(wxEVT_MOTION, &ImageTransientPopup::OnMouse, this);

    m_image = new wxStaticBitmap(m_panel,
        wxID_ANY, bmp);

    wxBoxSizer *topSizer = new wxBoxSizer( wxVERTICAL );
    topSizer->Add(m_image, 1, wxCENTRE | wxALL | wxEXPAND, 0);
    topSizer->SetMinSize(300, 300);

    if ( scrolled )
    {
        // Add a big window to ensure that scrollbars are shown when we set the
        // panel size to a lesser size below.
        topSizer->Add(new wxPanel(m_panel, wxID_ANY, wxDefaultPosition,
                                  wxSize(600, 600)));
    }

    m_panel->SetSizer( topSizer );
    if ( scrolled )
    {
        // Set the fixed size to ensure that the scrollbars are shown.
        m_panel->SetSize(300, 300);

        // And also actually enable them.
        m_panel->SetScrollRate(10, 10);
    }
    else
    {
        // Use the fitting size for the panel if we don't need scrollbars.
        topSizer->Fit(m_panel);
    }

    SetClientSize(m_panel->GetSize());
}

ImageTransientPopup::~ImageTransientPopup()
{
}

void ImageTransientPopup::SetImage(wxBitmap bmp)
{
    m_image->SetBitmap(bmp);
    m_panel->Layout();
}

void ImageTransientPopup::Popup(wxWindow* WXUNUSED(focus))
{
    PopupWindow::Popup();
}

void ImageTransientPopup::OnDismiss()
{
    PopupWindow::OnDismiss();
}

bool ImageTransientPopup::ProcessLeftDown(wxMouseEvent& event)
{
    return PopupWindow::ProcessLeftDown(event);
}
bool ImageTransientPopup::Show( bool show )
{
    return PopupWindow::Show(show);
}

void ImageTransientPopup::OnSize(wxSizeEvent &event)
{
    event.Skip();
}

void ImageTransientPopup::OnSetFocus(wxFocusEvent &event)
{
    event.Skip();
}

void ImageTransientPopup::OnKillFocus(wxFocusEvent &event)
{
    event.Skip();
}

void ImageTransientPopup::OnMouse(wxMouseEvent &event)
{
    event.Skip();
}




