network_gui.cpp

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "../stdafx.h"
#include "../strings_func.h"
#include "../date_func.h"
#include "../fios.h"
#include "network_client.h"
#include "network_gui.h"
#include "network_gamelist.h"
#include "network.h"
#include "network_base.h"
#include "network_content.h"
#include "../gui.h"
#include "network_udp.h"
#include "../window_func.h"
#include "../gfx_func.h"
#include "../widgets/dropdown_func.h"
#include "../querystring_gui.h"
#include "../sortlist_type.h"
#include "../company_func.h"
#include "../core/geometry_func.hpp"
#include "../genworld.h"
#include "../map_type.h"
#include "../guitimer_func.h"
 
#include "../widgets/network_widget.h"
 
#include "table/strings.h"
#include "../table/sprites.h"
 
#include "../stringfilter_type.h"
 
#include "../safeguards.h"
 
#ifdef __EMSCRIPTEN__
# include <emscripten.h>
#endif
 
static void ShowNetworkStartServerWindow();
static void ShowNetworkLobbyWindow(NetworkGameList *ngl);
 
static const StringID _connection_types_dropdown[] = {
  STR_NETWORK_START_SERVER_UNADVERTISED,
  STR_NETWORK_START_SERVER_ADVERTISED,
  INVALID_STRING_ID
};
 
static std::vector<StringID> _language_dropdown;
 
void SortNetworkLanguages()
{
  /* Init the strings */
  if (_language_dropdown.empty()) {
    for (int i = 0; i < NETLANG_COUNT; i++) _language_dropdown.emplace_back(STR_NETWORK_LANG_ANY + i);
    _language_dropdown.emplace_back(INVALID_STRING_ID);
  }
 
  /* Sort the strings (we don't move 'any' and the 'invalid' one) */
  std::sort(_language_dropdown.begin() + 1, _language_dropdown.end() - 1, StringIDSorter);
}
 
void UpdateNetworkGameWindow()
{
  InvalidateWindowData(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_GAME, 0);
}
 
typedef GUIList<NetworkGameList*, StringFilter&> GUIGameServerList;
typedef uint16 ServerListPosition;
static const ServerListPosition SLP_INVALID = 0xFFFF;
 
class NWidgetServerListHeader : public NWidgetContainer {
  static const uint MINIMUM_NAME_WIDTH_BEFORE_NEW_HEADER = 150; 
  bool visible[6]; 
public:
  NWidgetServerListHeader() : NWidgetContainer(NWID_HORIZONTAL)
  {
    NWidgetLeaf *leaf = new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_NAME, STR_NETWORK_SERVER_LIST_GAME_NAME, STR_NETWORK_SERVER_LIST_GAME_NAME_TOOLTIP);
    leaf->SetResize(1, 0);
    leaf->SetFill(1, 0);
    this->Add(leaf);
 
    this->Add(new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_CLIENTS, STR_NETWORK_SERVER_LIST_CLIENTS_CAPTION, STR_NETWORK_SERVER_LIST_CLIENTS_CAPTION_TOOLTIP));
    this->Add(new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_MAPSIZE, STR_NETWORK_SERVER_LIST_MAP_SIZE_CAPTION, STR_NETWORK_SERVER_LIST_MAP_SIZE_CAPTION_TOOLTIP));
    this->Add(new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_DATE, STR_NETWORK_SERVER_LIST_DATE_CAPTION, STR_NETWORK_SERVER_LIST_DATE_CAPTION_TOOLTIP));
    this->Add(new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_YEARS, STR_NETWORK_SERVER_LIST_YEARS_CAPTION, STR_NETWORK_SERVER_LIST_YEARS_CAPTION_TOOLTIP));
 
    leaf = new NWidgetLeaf(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_INFO, STR_EMPTY, STR_NETWORK_SERVER_LIST_INFO_ICONS_TOOLTIP);
    leaf->SetMinimalSize(14 + GetSpriteSize(SPR_LOCK).width + GetSpriteSize(SPR_BLOT).width + GetSpriteSize(SPR_FLAGS_BASE).width, 12);
    leaf->SetFill(0, 1);
    this->Add(leaf);
 
    /* First and last are always visible, the rest is implicitly zeroed */
    this->visible[0] = true;
    *lastof(this->visible) = true;
  }
 
  void SetupSmallestSize(Window *w, bool init_array) override
  {
    /* Oh yeah, we ought to be findable! */
    w->nested_array[WID_NG_HEADER] = this;
 
    this->smallest_y = 0; // Biggest child.
    this->fill_x = 1;
    this->fill_y = 0;
    this->resize_x = 1; // We only resize in this direction
    this->resize_y = 0; // We never resize in this direction
 
    /* First initialise some variables... */
    for (NWidgetBase *child_wid = this->head; child_wid != nullptr; child_wid = child_wid->next) {
      child_wid->SetupSmallestSize(w, init_array);
      this->smallest_y = std::max(this->smallest_y, child_wid->smallest_y + child_wid->padding_top + child_wid->padding_bottom);
    }
 
    /* ... then in a second pass make sure the 'current' sizes are set. Won't change for most widgets. */
    for (NWidgetBase *child_wid = this->head; child_wid != nullptr; child_wid = child_wid->next) {
      child_wid->current_x = child_wid->smallest_x;
      child_wid->current_y = this->smallest_y;
    }
 
    this->smallest_x = this->head->smallest_x + this->tail->smallest_x; // First and last are always shown, rest not
  }
 
  void AssignSizePosition(SizingType sizing, uint x, uint y, uint given_width, uint given_height, bool rtl) override
  {
    assert(given_width >= this->smallest_x && given_height >= this->smallest_y);
 
    this->pos_x = x;
    this->pos_y = y;
    this->current_x = given_width;
    this->current_y = given_height;
 
    given_width -= this->tail->smallest_x;
    NWidgetBase *child_wid = this->head->next;
    /* The first and last widget are always visible, determine which other should be visible */
    for (uint i = 1; i < lengthof(this->visible) - 1; i++) {
      if (given_width > MINIMUM_NAME_WIDTH_BEFORE_NEW_HEADER + child_wid->smallest_x && this->visible[i - 1]) {
        this->visible[i] = true;
        given_width -= child_wid->smallest_x;
      } else {
        this->visible[i] = false;
      }
      child_wid = child_wid->next;
    }
 
    /* All remaining space goes to the first (name) widget */
    this->head->current_x = given_width;
 
    /* Now assign the widgets to their rightful place */
    uint position = 0; // Place to put next child relative to origin of the container.
    uint i = rtl ? lengthof(this->visible) - 1 : 0;
    child_wid = rtl ? this->tail : this->head;
    while (child_wid != nullptr) {
      if (this->visible[i]) {
        child_wid->AssignSizePosition(sizing, x + position, y, child_wid->current_x, this->current_y, rtl);
        position += child_wid->current_x;
      }
 
      child_wid = rtl ? child_wid->prev : child_wid->next;
      i += rtl ? -1 : 1;
    }
  }
 
  void Draw(const Window *w) override
  {
    int i = 0;
    for (NWidgetBase *child_wid = this->head; child_wid != nullptr; child_wid = child_wid->next) {
      if (!this->visible[i++]) continue;
 
      child_wid->Draw(w);
    }
  }
 
  NWidgetCore *GetWidgetFromPos(int x, int y) override
  {
    if (!IsInsideBS(x, this->pos_x, this->current_x) || !IsInsideBS(y, this->pos_y, this->current_y)) return nullptr;
 
    int i = 0;
    for (NWidgetBase *child_wid = this->head; child_wid != nullptr; child_wid = child_wid->next) {
      if (!this->visible[i++]) continue;
      NWidgetCore *nwid = child_wid->GetWidgetFromPos(x, y);
      if (nwid != nullptr) return nwid;
    }
    return nullptr;
  }
 
  bool IsWidgetVisible(NetworkGameWidgets widget) const
  {
    assert((uint)(widget - WID_NG_NAME) < lengthof(this->visible));
    return this->visible[widget - WID_NG_NAME];
  }
};
 
class NetworkGameWindow : public Window {
protected:
  /* Runtime saved values */
  static Listing last_sorting;
 
  /* Constants for sorting servers */
  static GUIGameServerList::SortFunction * const sorter_funcs[];
  static GUIGameServerList::FilterFunction * const filter_funcs[];
 
  NetworkGameList *server;      
  NetworkGameList *last_joined; 
  GUIGameServerList servers;    
  ServerListPosition list_pos;  
  Scrollbar *vscroll;           
  QueryString name_editbox;     
  QueryString filter_editbox;   
  GUITimer requery_timer;       
 
  int lock_offset; 
  int blot_offset; 
  int flag_offset; 
 
  void BuildGUINetworkGameList()
  {
    if (!this->servers.NeedRebuild()) return;
 
    /* Create temporary array of games to use for listing */
    this->servers.clear();
 
    for (NetworkGameList *ngl = _network_game_list; ngl != nullptr; ngl = ngl->next) {
      this->servers.push_back(ngl);
    }
 
    /* Apply the filter condition immediately, if a search string has been provided. */
    StringFilter sf;
    sf.SetFilterTerm(this->filter_editbox.text.buf);
 
    if (!sf.IsEmpty()) {
      this->servers.SetFilterState(true);
      this->servers.Filter(sf);
    } else {
      this->servers.SetFilterState(false);
    }
 
    this->servers.shrink_to_fit();
    this->servers.RebuildDone();
    this->vscroll->SetCount((int)this->servers.size());
 
    /* Sort the list of network games as requested. */
    this->servers.Sort();
    this->UpdateListPos();
  }
 
  static bool NGameNameSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    int r = strnatcmp(a->info.server_name, b->info.server_name, true); // Sort by name (natural sorting).
    return r == 0 ? a->address.CompareTo(b->address) < 0: r < 0;
  }
 
  static bool NGameClientSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    /* Reverse as per default we are interested in most-clients first */
    int r = a->info.clients_on - b->info.clients_on;
 
    if (r == 0) r = a->info.clients_max - b->info.clients_max;
    if (r == 0) return NGameNameSorter(a, b);
 
    return r < 0;
  }
 
  static bool NGameMapSizeSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    /* Sort by the area of the map. */
    int r = (a->info.map_height) * (a->info.map_width) - (b->info.map_height) * (b->info.map_width);
 
    if (r == 0) r = a->info.map_width - b->info.map_width;
    return (r != 0) ? r < 0 : NGameClientSorter(a, b);
  }
 
  static bool NGameDateSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    int r = a->info.game_date - b->info.game_date;
    return (r != 0) ? r < 0 : NGameClientSorter(a, b);
  }
 
  static bool NGameYearsSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    int r = a->info.game_date - a->info.start_date - b->info.game_date + b->info.start_date;
    return (r != 0) ? r < 0: NGameDateSorter(a, b);
  }
 
  static bool NGameAllowedSorter(NetworkGameList * const &a, NetworkGameList * const &b)
  {
    /* The servers we do not know anything about (the ones that did not reply) should be at the bottom) */
    int r = StrEmpty(a->info.server_revision) - StrEmpty(b->info.server_revision);
 
    /* Reverse default as we are interested in version-compatible clients first */
    if (r == 0) r = b->info.version_compatible - a->info.version_compatible;
    /* The version-compatible ones are then sorted with NewGRF compatible first, incompatible last */
    if (r == 0) r = b->info.compatible - a->info.compatible;
    /* Passworded servers should be below unpassworded servers */
    if (r == 0) r = a->info.use_password - b->info.use_password;
    /* Finally sort on the number of clients of the server */
    if (r == 0) return NGameClientSorter(a, b);
 
    return r < 0;
  }
 
  void SortNetworkGameList()
  {
    if (this->servers.Sort()) this->UpdateListPos();
  }
 
  void UpdateListPos()
  {
    this->list_pos = SLP_INVALID;
    for (uint i = 0; i != this->servers.size(); i++) {
      if (this->servers[i] == this->server) {
        this->list_pos = i;
        break;
      }
    }
  }
 
  static bool CDECL NGameSearchFilter(NetworkGameList * const *item, StringFilter &sf)
  {
    assert(item != nullptr);
    assert((*item) != nullptr);
 
    sf.ResetState();
    sf.AddLine((*item)->info.server_name);
    return sf.GetState();
  }
 
  void DrawServerLine(const NetworkGameList *cur_item, uint y, bool highlight) const
  {
    const NWidgetBase *nwi_name = this->GetWidget<NWidgetBase>(WID_NG_NAME);
    const NWidgetBase *nwi_info = this->GetWidget<NWidgetBase>(WID_NG_INFO);
 
    /* show highlighted item with a different colour */
    if (highlight) GfxFillRect(nwi_name->pos_x + 1, y + 1, nwi_info->pos_x + nwi_info->current_x - 2, y + this->resize.step_height - 2, PC_GREY);
 
    /* offsets to vertically centre text and icons */
    int text_y_offset = (this->resize.step_height - FONT_HEIGHT_NORMAL) / 2 + 1;
    int icon_y_offset = (this->resize.step_height - GetSpriteSize(SPR_BLOT).height) / 2;
 
    DrawString(nwi_name->pos_x + WD_FRAMERECT_LEFT, nwi_name->pos_x + nwi_name->current_x - WD_FRAMERECT_RIGHT, y + text_y_offset, cur_item->info.server_name, TC_BLACK);
 
    /* only draw details if the server is online */
    if (cur_item->online) {
      const NWidgetServerListHeader *nwi_header = this->GetWidget<NWidgetServerListHeader>(WID_NG_HEADER);
 
      if (nwi_header->IsWidgetVisible(WID_NG_CLIENTS)) {
        const NWidgetBase *nwi_clients = this->GetWidget<NWidgetBase>(WID_NG_CLIENTS);
        SetDParam(0, cur_item->info.clients_on);
        SetDParam(1, cur_item->info.clients_max);
        SetDParam(2, cur_item->info.companies_on);
        SetDParam(3, cur_item->info.companies_max);
        DrawString(nwi_clients->pos_x, nwi_clients->pos_x + nwi_clients->current_x - 1, y + text_y_offset, STR_NETWORK_SERVER_LIST_GENERAL_ONLINE, TC_FROMSTRING, SA_HOR_CENTER);
      }
 
      if (nwi_header->IsWidgetVisible(WID_NG_MAPSIZE)) {
        /* map size */
        const NWidgetBase *nwi_mapsize = this->GetWidget<NWidgetBase>(WID_NG_MAPSIZE);
        SetDParam(0, cur_item->info.map_width);
        SetDParam(1, cur_item->info.map_height);
        DrawString(nwi_mapsize->pos_x, nwi_mapsize->pos_x + nwi_mapsize->current_x - 1, y + text_y_offset, STR_NETWORK_SERVER_LIST_MAP_SIZE_SHORT, TC_FROMSTRING, SA_HOR_CENTER);
      }
 
      if (nwi_header->IsWidgetVisible(WID_NG_DATE)) {
        /* current date */
        const NWidgetBase *nwi_date = this->GetWidget<NWidgetBase>(WID_NG_DATE);
        YearMonthDay ymd;
        ConvertDateToYMD(cur_item->info.game_date, &ymd);
        SetDParam(0, ymd.year);
        DrawString(nwi_date->pos_x, nwi_date->pos_x + nwi_date->current_x - 1, y + text_y_offset, STR_JUST_INT, TC_BLACK, SA_HOR_CENTER);
      }
 
      if (nwi_header->IsWidgetVisible(WID_NG_YEARS)) {
        /* number of years the game is running */
        const NWidgetBase *nwi_years = this->GetWidget<NWidgetBase>(WID_NG_YEARS);
        YearMonthDay ymd_cur, ymd_start;
        ConvertDateToYMD(cur_item->info.game_date, &ymd_cur);
        ConvertDateToYMD(cur_item->info.start_date, &ymd_start);
        SetDParam(0, ymd_cur.year - ymd_start.year);
        DrawString(nwi_years->pos_x, nwi_years->pos_x + nwi_years->current_x - 1, y + text_y_offset, STR_JUST_INT, TC_BLACK, SA_HOR_CENTER);
      }
 
      /* draw a lock if the server is password protected */
      if (cur_item->info.use_password) DrawSprite(SPR_LOCK, PAL_NONE, nwi_info->pos_x + this->lock_offset, y + icon_y_offset - 1);
 
      /* draw red or green icon, depending on compatibility with server */
      DrawSprite(SPR_BLOT, (cur_item->info.compatible ? PALETTE_TO_GREEN : (cur_item->info.version_compatible ? PALETTE_TO_YELLOW : PALETTE_TO_RED)), nwi_info->pos_x + this->blot_offset, y + icon_y_offset);
 
      /* draw flag according to server language */
      DrawSprite(SPR_FLAGS_BASE + cur_item->info.server_lang, PAL_NONE, nwi_info->pos_x + this->flag_offset, y + icon_y_offset);
    }
  }
 
  void ScrollToSelectedServer()
  {
    if (this->list_pos == SLP_INVALID) return; // no server selected
    this->vscroll->ScrollTowards(this->list_pos);
  }
 
public:
  NetworkGameWindow(WindowDesc *desc) : Window(desc), name_editbox(NETWORK_CLIENT_NAME_LENGTH), filter_editbox(120)
  {
    this->list_pos = SLP_INVALID;
    this->server = nullptr;
 
    this->lock_offset = 5;
    this->blot_offset = this->lock_offset + 3 + GetSpriteSize(SPR_LOCK).width;
    this->flag_offset = this->blot_offset + 2 + GetSpriteSize(SPR_BLOT).width;
 
    this->CreateNestedTree();
    this->vscroll = this->GetScrollbar(WID_NG_SCROLLBAR);
    this->FinishInitNested(WN_NETWORK_WINDOW_GAME);
 
    this->querystrings[WID_NG_CLIENT] = &this->name_editbox;
    this->name_editbox.text.Assign(_settings_client.network.client_name);
 
    this->querystrings[WID_NG_FILTER] = &this->filter_editbox;
    this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
    this->SetFocusedWidget(WID_NG_FILTER);
 
    /* As the master-server doesn't support "websocket" servers yet, we
     * let "os/emscripten/pre.js" hardcode a list of servers people can
     * join. This means the serverlist is curated for now, but it is the
     * best we can offer. */
#ifdef __EMSCRIPTEN__
    EM_ASM(if (window["openttd_server_list"]) openttd_server_list());
#endif
 
    this->last_joined = NetworkGameListAddItem(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port));
    this->server = this->last_joined;
    if (this->last_joined != nullptr) NetworkUDPQueryServer(this->last_joined->address);
 
    this->requery_timer.SetInterval(MILLISECONDS_PER_TICK);
 
    this->servers.SetListing(this->last_sorting);
    this->servers.SetSortFuncs(this->sorter_funcs);
    this->servers.SetFilterFuncs(this->filter_funcs);
    this->servers.ForceRebuild();
  }
 
  ~NetworkGameWindow()
  {
    this->last_sorting = this->servers.GetListing();
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    switch (widget) {
      case WID_NG_MATRIX:
        resize->height = WD_MATRIX_TOP + std::max(GetSpriteSize(SPR_BLOT).height, (uint)FONT_HEIGHT_NORMAL) + WD_MATRIX_BOTTOM;
        size->height = 12 * resize->height;
        break;
 
      case WID_NG_LASTJOINED:
        size->height = WD_MATRIX_TOP + std::max(GetSpriteSize(SPR_BLOT).height, (uint)FONT_HEIGHT_NORMAL) + WD_MATRIX_BOTTOM;
        break;
 
      case WID_NG_LASTJOINED_SPACER:
        size->width = NWidgetScrollbar::GetVerticalDimension().width;
        break;
 
      case WID_NG_NAME:
        size->width += 2 * Window::SortButtonWidth(); // Make space for the arrow
        break;
 
      case WID_NG_CLIENTS:
        size->width += 2 * Window::SortButtonWidth(); // Make space for the arrow
        SetDParamMaxValue(0, MAX_CLIENTS);
        SetDParamMaxValue(1, MAX_CLIENTS);
        SetDParamMaxValue(2, MAX_COMPANIES);
        SetDParamMaxValue(3, MAX_COMPANIES);
        *size = maxdim(*size, GetStringBoundingBox(STR_NETWORK_SERVER_LIST_GENERAL_ONLINE));
        break;
 
      case WID_NG_MAPSIZE:
        size->width += 2 * Window::SortButtonWidth(); // Make space for the arrow
        SetDParamMaxValue(0, MAX_MAP_SIZE);
        SetDParamMaxValue(1, MAX_MAP_SIZE);
        *size = maxdim(*size, GetStringBoundingBox(STR_NETWORK_SERVER_LIST_MAP_SIZE_SHORT));
        break;
 
      case WID_NG_DATE:
      case WID_NG_YEARS:
        size->width += 2 * Window::SortButtonWidth(); // Make space for the arrow
        SetDParamMaxValue(0, 5);
        *size = maxdim(*size, GetStringBoundingBox(STR_JUST_INT));
        break;
    }
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    switch (widget) {
      case WID_NG_MATRIX: {
        uint16 y = r.top;
 
        const int max = std::min(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), (int)this->servers.size());
 
        for (int i = this->vscroll->GetPosition(); i < max; ++i) {
          const NetworkGameList *ngl = this->servers[i];
          this->DrawServerLine(ngl, y, ngl == this->server);
          y += this->resize.step_height;
        }
        break;
      }
 
      case WID_NG_LASTJOINED:
        /* Draw the last joined server, if any */
        if (this->last_joined != nullptr) this->DrawServerLine(this->last_joined, r.top, this->last_joined == this->server);
        break;
 
      case WID_NG_DETAILS:
        this->DrawDetails(r);
        break;
 
      case WID_NG_NAME:
      case WID_NG_CLIENTS:
      case WID_NG_MAPSIZE:
      case WID_NG_DATE:
      case WID_NG_YEARS:
      case WID_NG_INFO:
        if (widget - WID_NG_NAME == this->servers.SortType()) this->DrawSortButtonState(widget, this->servers.IsDescSortOrder() ? SBS_DOWN : SBS_UP);
        break;
    }
  }
 
 
  void OnPaint() override
  {
    if (this->servers.NeedRebuild()) {
      this->BuildGUINetworkGameList();
    }
    if (this->servers.NeedResort()) {
      this->SortNetworkGameList();
    }
 
    NetworkGameList *sel = this->server;
    /* 'Refresh' button invisible if no server selected */
    this->SetWidgetDisabledState(WID_NG_REFRESH, sel == nullptr);
    /* 'Join' button disabling conditions */
    this->SetWidgetDisabledState(WID_NG_JOIN, sel == nullptr || // no Selected Server
        !sel->online || // Server offline
        sel->info.clients_on >= sel->info.clients_max || // Server full
        !sel->info.compatible); // Revision mismatch
 
    /* 'NewGRF Settings' button invisible if no NewGRF is used */
    this->GetWidget<NWidgetStacked>(WID_NG_NEWGRF_SEL)->SetDisplayedPlane(sel == nullptr || !sel->online || sel->info.grfconfig == nullptr);
    this->GetWidget<NWidgetStacked>(WID_NG_NEWGRF_MISSING_SEL)->SetDisplayedPlane(sel == nullptr || !sel->online || sel->info.grfconfig == nullptr || !sel->info.version_compatible || sel->info.compatible);
 
#ifdef __EMSCRIPTEN__
    this->SetWidgetDisabledState(WID_NG_SEARCH_INTERNET, true);
    this->SetWidgetDisabledState(WID_NG_SEARCH_LAN, true);
    this->SetWidgetDisabledState(WID_NG_ADD, true);
    this->SetWidgetDisabledState(WID_NG_START, true);
#endif
 
    this->DrawWidgets();
  }
 
  void DrawDetails(const Rect &r) const
  {
    NetworkGameList *sel = this->server;
 
    const int detail_height = 6 + 8 + 6 + 3 * FONT_HEIGHT_NORMAL;
 
    /* Draw the right menu */
    GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.top + detail_height - 1, PC_DARK_BLUE);
    if (sel == nullptr) {
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 6 + 4 + FONT_HEIGHT_NORMAL, STR_NETWORK_SERVER_LIST_GAME_INFO, TC_FROMSTRING, SA_HOR_CENTER);
    } else if (!sel->online) {
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 6 + 4 + FONT_HEIGHT_NORMAL, sel->info.server_name, TC_ORANGE, SA_HOR_CENTER); // game name
 
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + detail_height + 4, STR_NETWORK_SERVER_LIST_SERVER_OFFLINE, TC_FROMSTRING, SA_HOR_CENTER); // server offline
    } else { // show game info
 
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 6, STR_NETWORK_SERVER_LIST_GAME_INFO, TC_FROMSTRING, SA_HOR_CENTER);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 6 + 4 + FONT_HEIGHT_NORMAL, sel->info.server_name, TC_ORANGE, SA_HOR_CENTER); // game name
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 6 + 8 + 2 * FONT_HEIGHT_NORMAL, sel->info.map_name, TC_BLACK, SA_HOR_CENTER); // map name
 
      uint16 y = r.top + detail_height + 4;
 
      SetDParam(0, sel->info.clients_on);
      SetDParam(1, sel->info.clients_max);
      SetDParam(2, sel->info.companies_on);
      SetDParam(3, sel->info.companies_max);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_CLIENTS);
      y += FONT_HEIGHT_NORMAL;
 
      SetDParam(0, STR_NETWORK_LANG_ANY + sel->info.server_lang);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_LANGUAGE); // server language
      y += FONT_HEIGHT_NORMAL;
 
      SetDParam(0, STR_CHEAT_SWITCH_CLIMATE_TEMPERATE_LANDSCAPE + sel->info.map_set);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_LANDSCAPE); // landscape
      y += FONT_HEIGHT_NORMAL;
 
      SetDParam(0, sel->info.map_width);
      SetDParam(1, sel->info.map_height);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_MAP_SIZE); // map size
      y += FONT_HEIGHT_NORMAL;
 
      SetDParamStr(0, sel->info.server_revision);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_SERVER_VERSION); // server version
      y += FONT_HEIGHT_NORMAL;
 
      char network_addr_buffer[NETWORK_HOSTNAME_LENGTH + 6 + 7];
      sel->address.GetAddressAsString(network_addr_buffer, lastof(network_addr_buffer));
      SetDParamStr(0, network_addr_buffer);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_SERVER_ADDRESS); // server address
      y += FONT_HEIGHT_NORMAL;
 
      SetDParam(0, sel->info.start_date);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_START_DATE); // start date
      y += FONT_HEIGHT_NORMAL;
 
      SetDParam(0, sel->info.game_date);
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_CURRENT_DATE); // current date
      y += FONT_HEIGHT_NORMAL;
 
      y += WD_PAR_VSEP_NORMAL;
 
      if (!sel->info.compatible) {
        DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, sel->info.version_compatible ? STR_NETWORK_SERVER_LIST_GRF_MISMATCH : STR_NETWORK_SERVER_LIST_VERSION_MISMATCH, TC_FROMSTRING, SA_HOR_CENTER); // server mismatch
      } else if (sel->info.clients_on == sel->info.clients_max) {
        /* Show: server full, when clients_on == max_clients */
        DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_SERVER_FULL, TC_FROMSTRING, SA_HOR_CENTER); // server full
      } else if (sel->info.use_password) {
        DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_PASSWORD, TC_FROMSTRING, SA_HOR_CENTER); // password warning
      }
    }
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    switch (widget) {
      case WID_NG_CANCEL: // Cancel button
        DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_GAME);
        break;
 
      case WID_NG_NAME:    // Sort by name
      case WID_NG_CLIENTS: // Sort by connected clients
      case WID_NG_MAPSIZE: // Sort by map size
      case WID_NG_DATE:    // Sort by date
      case WID_NG_YEARS:   // Sort by years
      case WID_NG_INFO:    // Connectivity (green dot)
        if (this->servers.SortType() == widget - WID_NG_NAME) {
          this->servers.ToggleSortOrder();
          if (this->list_pos != SLP_INVALID) this->list_pos = (ServerListPosition)this->servers.size() - this->list_pos - 1;
        } else {
          this->servers.SetSortType(widget - WID_NG_NAME);
          this->servers.ForceResort();
          this->SortNetworkGameList();
        }
        this->ScrollToSelectedServer();
        this->SetDirty();
        break;
 
      case WID_NG_MATRIX: { // Show available network games
        uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NG_MATRIX);
        this->server = (id_v < this->servers.size()) ? this->servers[id_v] : nullptr;
        this->list_pos = (server == nullptr) ? SLP_INVALID : id_v;
        this->SetDirty();
 
        /* FIXME the disabling should go into some InvalidateData, which is called instead of the SetDirty */
        if (click_count > 1 && !this->IsWidgetDisabled(WID_NG_JOIN)) this->OnClick(pt, WID_NG_JOIN, 1);
        break;
      }
 
      case WID_NG_LASTJOINED: {
        if (this->last_joined != nullptr) {
          this->server = this->last_joined;
 
          /* search the position of the newly selected server */
          this->UpdateListPos();
          this->ScrollToSelectedServer();
          this->SetDirty();
 
          /* FIXME the disabling should go into some InvalidateData, which is called instead of the SetDirty */
          if (click_count > 1 && !this->IsWidgetDisabled(WID_NG_JOIN)) this->OnClick(pt, WID_NG_JOIN, 1);
        }
        break;
      }
 
      case WID_NG_SEARCH_INTERNET:
        NetworkUDPQueryMasterServer();
        break;
 
      case WID_NG_SEARCH_LAN:
        NetworkUDPSearchGame();
        break;
 
      case WID_NG_ADD: // Add a server
        SetDParamStr(0, _settings_client.network.connect_to_ip);
        ShowQueryString(
          STR_JUST_RAW_STRING,
          STR_NETWORK_SERVER_LIST_ENTER_IP,
          NETWORK_HOSTNAME_LENGTH,  // maximum number of characters including '\0'
          this, CS_ALPHANUMERAL, QSF_ACCEPT_UNCHANGED);
        break;
 
      case WID_NG_START: // Start server
        ShowNetworkStartServerWindow();
        break;
 
      case WID_NG_JOIN: // Join Game
        if (this->server != nullptr) {
          seprintf(_settings_client.network.last_host, lastof(_settings_client.network.last_host), "%s", this->server->address.GetHostname());
          _settings_client.network.last_port = this->server->address.GetPort();
          ShowNetworkLobbyWindow(this->server);
        }
        break;
 
      case WID_NG_REFRESH: // Refresh
        if (this->server != nullptr) NetworkUDPQueryServer(this->server->address);
        break;
 
      case WID_NG_NEWGRF: // NewGRF Settings
        if (this->server != nullptr) ShowNewGRFSettings(false, false, false, &this->server->info.grfconfig);
        break;
 
      case WID_NG_NEWGRF_MISSING: // Find missing content online
        if (this->server != nullptr) ShowMissingContentWindow(this->server->info.grfconfig);
        break;
    }
  }
 
  void OnInvalidateData(int data = 0, bool gui_scope = true) override
  {
    this->servers.ForceRebuild();
    this->SetDirty();
  }
 
  EventState OnKeyPress(WChar key, uint16 keycode) override
  {
    EventState state = ES_NOT_HANDLED;
 
    /* handle up, down, pageup, pagedown, home and end */
    if (keycode == WKC_UP || keycode == WKC_DOWN || keycode == WKC_PAGEUP || keycode == WKC_PAGEDOWN || keycode == WKC_HOME || keycode == WKC_END) {
      if (this->servers.size() == 0) return ES_HANDLED;
      switch (keycode) {
        case WKC_UP:
          /* scroll up by one */
          if (this->list_pos == SLP_INVALID) return ES_HANDLED;
          if (this->list_pos > 0) this->list_pos--;
          break;
        case WKC_DOWN:
          /* scroll down by one */
          if (this->list_pos == SLP_INVALID) return ES_HANDLED;
          if (this->list_pos < this->servers.size() - 1) this->list_pos++;
          break;
        case WKC_PAGEUP:
          /* scroll up a page */
          if (this->list_pos == SLP_INVALID) return ES_HANDLED;
          this->list_pos = (this->list_pos < this->vscroll->GetCapacity()) ? 0 : this->list_pos - this->vscroll->GetCapacity();
          break;
        case WKC_PAGEDOWN:
          /* scroll down a page */
          if (this->list_pos == SLP_INVALID) return ES_HANDLED;
          this->list_pos = std::min(this->list_pos + this->vscroll->GetCapacity(), (int)this->servers.size() - 1);
          break;
        case WKC_HOME:
          /* jump to beginning */
          this->list_pos = 0;
          break;
        case WKC_END:
          /* jump to end */
          this->list_pos = (ServerListPosition)this->servers.size() - 1;
          break;
        default: NOT_REACHED();
      }
 
      this->server = this->servers[this->list_pos];
 
      /* Scroll to the new server if it is outside the current range. */
      this->ScrollToSelectedServer();
 
      /* redraw window */
      this->SetDirty();
      return ES_HANDLED;
    }
 
    if (this->server != nullptr) {
      if (keycode == WKC_DELETE) { // Press 'delete' to remove servers
        NetworkGameListRemoveItem(this->server);
        if (this->server == this->last_joined) this->last_joined = nullptr;
        this->server = nullptr;
        this->list_pos = SLP_INVALID;
      }
    }
 
    return state;
  }
 
  void OnEditboxChanged(int wid) override
  {
    switch (wid) {
      case WID_NG_FILTER: {
        this->servers.ForceRebuild();
        this->BuildGUINetworkGameList();
        this->ScrollToSelectedServer();
        this->SetDirty();
        break;
      }
 
      case WID_NG_CLIENT:
        /* Make sure the name does not start with a space, so TAB completion works */
        if (!StrEmpty(this->name_editbox.text.buf) && this->name_editbox.text.buf[0] != ' ') {
          strecpy(_settings_client.network.client_name, this->name_editbox.text.buf, lastof(_settings_client.network.client_name));
        } else {
          strecpy(_settings_client.network.client_name, "Player", lastof(_settings_client.network.client_name));
        }
        break;
    }
  }
 
  void OnQueryTextFinished(char *str) override
  {
    if (!StrEmpty(str)) NetworkAddServer(str);
  }
 
  void OnResize() override
  {
    this->vscroll->SetCapacityFromWidget(this, WID_NG_MATRIX);
  }
 
  void OnRealtimeTick(uint delta_ms) override
  {
    if (!this->requery_timer.Elapsed(delta_ms)) return;
    this->requery_timer.SetInterval(MILLISECONDS_PER_TICK);
 
    NetworkGameListRequery();
  }
};
 
Listing NetworkGameWindow::last_sorting = {false, 5};
GUIGameServerList::SortFunction * const NetworkGameWindow::sorter_funcs[] = {
  &NGameNameSorter,
  &NGameClientSorter,
  &NGameMapSizeSorter,
  &NGameDateSorter,
  &NGameYearsSorter,
  &NGameAllowedSorter
};
 
GUIGameServerList::FilterFunction * const NetworkGameWindow::filter_funcs[] = {
  &NGameSearchFilter
};
 
static NWidgetBase *MakeResizableHeader(int *biggest_index)
{
  *biggest_index = std::max<int>(*biggest_index, WID_NG_INFO);
  return new NWidgetServerListHeader();
}
 
static const NWidgetPart _nested_network_game_widgets[] = {
  /* TOP */
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_LIGHT_BLUE),
    NWidget(WWT_CAPTION, COLOUR_LIGHT_BLUE), SetDataTip(STR_NETWORK_SERVER_LIST_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    NWidget(WWT_DEFSIZEBOX, COLOUR_LIGHT_BLUE),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NG_MAIN),
    NWidget(NWID_VERTICAL), SetPIP(10, 7, 0),
      NWidget(NWID_HORIZONTAL), SetPIP(10, 7, 10),
        /* LEFT SIDE */
        NWidget(NWID_VERTICAL), SetPIP(0, 7, 0),
          NWidget(NWID_HORIZONTAL), SetPIP(0, 7, 0),
            NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NG_FILTER_LABEL), SetDataTip(STR_LIST_FILTER_TITLE, STR_NULL),
            NWidget(WWT_EDITBOX, COLOUR_LIGHT_BLUE, WID_NG_FILTER), SetMinimalSize(251, 12), SetFill(1, 0), SetResize(1, 0),
                      SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
          EndContainer(),
          NWidget(NWID_HORIZONTAL),
            NWidget(NWID_VERTICAL),
              NWidgetFunction(MakeResizableHeader),
              NWidget(WWT_MATRIX, COLOUR_LIGHT_BLUE, WID_NG_MATRIX), SetResize(1, 1), SetFill(1, 0),
                        SetMatrixDataTip(1, 0, STR_NETWORK_SERVER_LIST_CLICK_GAME_TO_SELECT), SetScrollbar(WID_NG_SCROLLBAR),
            EndContainer(),
            NWidget(NWID_VSCROLLBAR, COLOUR_LIGHT_BLUE, WID_NG_SCROLLBAR),
          EndContainer(),
          NWidget(NWID_VERTICAL),
            NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NG_LASTJOINED_LABEL), SetFill(1, 0),
                      SetDataTip(STR_NETWORK_SERVER_LIST_LAST_JOINED_SERVER, STR_NULL), SetResize(1, 0),
            NWidget(NWID_HORIZONTAL),
              NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NG_LASTJOINED), SetFill(1, 0), SetResize(1, 0),
                        SetDataTip(0x0, STR_NETWORK_SERVER_LIST_CLICK_TO_SELECT_LAST),
              EndContainer(),
              NWidget(WWT_EMPTY, INVALID_COLOUR, WID_NG_LASTJOINED_SPACER), SetFill(0, 0),
            EndContainer(),
          EndContainer(),
        EndContainer(),
        /* RIGHT SIDE */
        NWidget(NWID_VERTICAL), SetPIP(0, 7, 0),
          NWidget(NWID_HORIZONTAL), SetPIP(0, 7, 0),
            NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NG_CLIENT_LABEL), SetDataTip(STR_NETWORK_SERVER_LIST_PLAYER_NAME, STR_NULL),
            NWidget(WWT_EDITBOX, COLOUR_LIGHT_BLUE, WID_NG_CLIENT), SetMinimalSize(151, 12), SetFill(1, 0), SetResize(1, 0),
                      SetDataTip(STR_NETWORK_SERVER_LIST_PLAYER_NAME_OSKTITLE, STR_NETWORK_SERVER_LIST_ENTER_NAME_TOOLTIP),
          EndContainer(),
          NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NG_DETAILS),
            NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(5, 5, 5),
              NWidget(WWT_EMPTY, INVALID_COLOUR, WID_NG_DETAILS_SPACER), SetMinimalSize(140, 155), SetResize(0, 1), SetFill(1, 1), // Make sure it's at least this wide
              NWidget(NWID_HORIZONTAL, NC_NONE), SetPIP(5, 5, 5),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NG_NEWGRF_MISSING_SEL),
                  NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_NEWGRF_MISSING), SetFill(1, 0), SetDataTip(STR_NEWGRF_SETTINGS_FIND_MISSING_CONTENT_BUTTON, STR_NEWGRF_SETTINGS_FIND_MISSING_CONTENT_TOOLTIP),
                  NWidget(NWID_SPACER), SetFill(1, 0),
                EndContainer(),
              EndContainer(),
              NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(5, 5, 5),
                NWidget(NWID_SPACER), SetFill(1, 0),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_NG_NEWGRF_SEL),
                  NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_NEWGRF), SetFill(1, 0), SetDataTip(STR_INTRO_NEWGRF_SETTINGS, STR_NULL),
                  NWidget(NWID_SPACER), SetFill(1, 0),
                EndContainer(),
              EndContainer(),
              NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(5, 5, 5),
                NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_JOIN), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_JOIN_GAME, STR_NULL),
                NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_REFRESH), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_REFRESH, STR_NETWORK_SERVER_LIST_REFRESH_TOOLTIP),
              EndContainer(),
            EndContainer(),
          EndContainer(),
        EndContainer(),
      EndContainer(),
      /* BOTTOM */
      NWidget(NWID_HORIZONTAL),
        NWidget(NWID_VERTICAL),
          NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 7, 4),
            NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_SEARCH_INTERNET), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_SEARCH_SERVER_INTERNET, STR_NETWORK_SERVER_LIST_SEARCH_SERVER_INTERNET_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_SEARCH_LAN), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_SEARCH_SERVER_LAN, STR_NETWORK_SERVER_LIST_SEARCH_SERVER_LAN_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_ADD), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_ADD_SERVER, STR_NETWORK_SERVER_LIST_ADD_SERVER_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_START), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_START_SERVER, STR_NETWORK_SERVER_LIST_START_SERVER_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NG_CANCEL), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_BUTTON_CANCEL, STR_NULL),
          EndContainer(),
          NWidget(NWID_SPACER), SetMinimalSize(0, 6), SetResize(1, 0), SetFill(1, 0),
        EndContainer(),
        NWidget(NWID_VERTICAL),
          NWidget(NWID_SPACER), SetFill(0, 1),
          NWidget(WWT_RESIZEBOX, COLOUR_LIGHT_BLUE),
        EndContainer(),
      EndContainer(),
    EndContainer(),
  EndContainer(),
};
 
static WindowDesc _network_game_window_desc(
  WDP_CENTER, "list_servers", 1000, 730,
  WC_NETWORK_WINDOW, WC_NONE,
  0,
  _nested_network_game_widgets, lengthof(_nested_network_game_widgets)
);
 
void ShowNetworkGameWindow()
{
  static bool first = true;
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_LOBBY);
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_START);
 
  /* Only show once */
  if (first) {
    first = false;
    /* Add all servers from the config file to our list. */
    for (const auto &iter : _network_host_list) {
      NetworkAddServer(iter.c_str());
    }
  }
 
  new NetworkGameWindow(&_network_game_window_desc);
}
 
struct NetworkStartServerWindow : public Window {
  byte widget_id;              
  QueryString name_editbox;    
 
  NetworkStartServerWindow(WindowDesc *desc) : Window(desc), name_editbox(NETWORK_NAME_LENGTH)
  {
    this->InitNested(WN_NETWORK_WINDOW_START);
 
    this->querystrings[WID_NSS_GAMENAME] = &this->name_editbox;
    this->name_editbox.text.Assign(_settings_client.network.server_name);
 
    this->SetFocusedWidget(WID_NSS_GAMENAME);
  }
 
  void SetStringParameters(int widget) const override
  {
    switch (widget) {
      case WID_NSS_CONNTYPE_BTN:
        SetDParam(0, _connection_types_dropdown[_settings_client.network.server_advertise]);
        break;
 
      case WID_NSS_CLIENTS_TXT:
        SetDParam(0, _settings_client.network.max_clients);
        break;
 
      case WID_NSS_COMPANIES_TXT:
        SetDParam(0, _settings_client.network.max_companies);
        break;
 
      case WID_NSS_SPECTATORS_TXT:
        SetDParam(0, _settings_client.network.max_spectators);
        break;
 
      case WID_NSS_LANGUAGE_BTN:
        SetDParam(0, STR_NETWORK_LANG_ANY + _settings_client.network.server_lang);
        break;
    }
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    switch (widget) {
      case WID_NSS_CONNTYPE_BTN:
        *size = maxdim(GetStringBoundingBox(_connection_types_dropdown[0]), GetStringBoundingBox(_connection_types_dropdown[1]));
        size->width += padding.width;
        size->height += padding.height;
        break;
    }
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    switch (widget) {
      case WID_NSS_SETPWD:
        /* If password is set, draw red '*' next to 'Set password' button. */
        if (!StrEmpty(_settings_client.network.server_password)) DrawString(r.right + WD_FRAMERECT_LEFT, this->width - WD_FRAMERECT_RIGHT, r.top, "*", TC_RED);
    }
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    switch (widget) {
      case WID_NSS_CANCEL: // Cancel button
        ShowNetworkGameWindow();
        break;
 
      case WID_NSS_SETPWD: // Set password button
        this->widget_id = WID_NSS_SETPWD;
        SetDParamStr(0, _settings_client.network.server_password);
        ShowQueryString(STR_JUST_RAW_STRING, STR_NETWORK_START_SERVER_SET_PASSWORD, 20, this, CS_ALPHANUMERAL, QSF_NONE);
        break;
 
      case WID_NSS_CONNTYPE_BTN: // Connection type
        ShowDropDownMenu(this, _connection_types_dropdown, _settings_client.network.server_advertise, WID_NSS_CONNTYPE_BTN, 0, 0); // do it for widget WID_NSS_CONNTYPE_BTN
        break;
 
      case WID_NSS_CLIENTS_BTND:    case WID_NSS_CLIENTS_BTNU:    // Click on up/down button for number of clients
      case WID_NSS_COMPANIES_BTND:  case WID_NSS_COMPANIES_BTNU:  // Click on up/down button for number of companies
      case WID_NSS_SPECTATORS_BTND: case WID_NSS_SPECTATORS_BTNU: // Click on up/down button for number of spectators
        /* Don't allow too fast scrolling. */
        if (!(this->flags & WF_TIMEOUT) || this->timeout_timer <= 1) {
          this->HandleButtonClick(widget);
          this->SetDirty();
          switch (widget) {
            default: NOT_REACHED();
            case WID_NSS_CLIENTS_BTND: case WID_NSS_CLIENTS_BTNU:
              _settings_client.network.max_clients    = Clamp(_settings_client.network.max_clients    + widget - WID_NSS_CLIENTS_TXT,    2, MAX_CLIENTS);
              break;
            case WID_NSS_COMPANIES_BTND: case WID_NSS_COMPANIES_BTNU:
              _settings_client.network.max_companies  = Clamp(_settings_client.network.max_companies  + widget - WID_NSS_COMPANIES_TXT,  1, MAX_COMPANIES);
              break;
            case WID_NSS_SPECTATORS_BTND: case WID_NSS_SPECTATORS_BTNU:
              _settings_client.network.max_spectators = Clamp(_settings_client.network.max_spectators + widget - WID_NSS_SPECTATORS_TXT, 0, MAX_CLIENTS);
              break;
          }
        }
        _left_button_clicked = false;
        break;
 
      case WID_NSS_CLIENTS_TXT:    // Click on number of clients
        this->widget_id = WID_NSS_CLIENTS_TXT;
        SetDParam(0, _settings_client.network.max_clients);
        ShowQueryString(STR_JUST_INT, STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS,    4, this, CS_NUMERAL, QSF_NONE);
        break;
 
      case WID_NSS_COMPANIES_TXT:  // Click on number of companies
        this->widget_id = WID_NSS_COMPANIES_TXT;
        SetDParam(0, _settings_client.network.max_companies);
        ShowQueryString(STR_JUST_INT, STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES,  3, this, CS_NUMERAL, QSF_NONE);
        break;
 
      case WID_NSS_SPECTATORS_TXT: // Click on number of spectators
        this->widget_id = WID_NSS_SPECTATORS_TXT;
        SetDParam(0, _settings_client.network.max_spectators);
        ShowQueryString(STR_JUST_INT, STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS, 4, this, CS_NUMERAL, QSF_NONE);
        break;
 
      case WID_NSS_LANGUAGE_BTN: { // Language
        uint sel = 0;
        for (uint i = 0; i < _language_dropdown.size() - 1; i++) {
          if (_language_dropdown[i] == STR_NETWORK_LANG_ANY + _settings_client.network.server_lang) {
            sel = i;
            break;
          }
        }
        ShowDropDownMenu(this, _language_dropdown.data(), sel, WID_NSS_LANGUAGE_BTN, 0, 0);
        break;
      }
 
      case WID_NSS_GENERATE_GAME: // Start game
        _is_network_server = true;
        if (_ctrl_pressed) {
          StartNewGameWithoutGUI(GENERATE_NEW_SEED);
        } else {
          ShowGenerateLandscape();
        }
        break;
 
      case WID_NSS_LOAD_GAME:
        _is_network_server = true;
        ShowSaveLoadDialog(FT_SAVEGAME, SLO_LOAD);
        break;
 
      case WID_NSS_PLAY_SCENARIO:
        _is_network_server = true;
        ShowSaveLoadDialog(FT_SCENARIO, SLO_LOAD);
        break;
 
      case WID_NSS_PLAY_HEIGHTMAP:
        _is_network_server = true;
        ShowSaveLoadDialog(FT_HEIGHTMAP,SLO_LOAD);
        break;
    }
  }
 
  void OnDropdownSelect(int widget, int index) override
  {
    switch (widget) {
      case WID_NSS_CONNTYPE_BTN:
        _settings_client.network.server_advertise = (index != 0);
        break;
      case WID_NSS_LANGUAGE_BTN:
        _settings_client.network.server_lang = _language_dropdown[index] - STR_NETWORK_LANG_ANY;
        break;
      default:
        NOT_REACHED();
    }
 
    this->SetDirty();
  }
 
  void OnEditboxChanged(int wid) override
  {
    if (wid == WID_NSS_GAMENAME) {
      strecpy(_settings_client.network.server_name, this->name_editbox.text.buf, lastof(_settings_client.network.server_name));
    }
  }
 
  void OnTimeout() override
  {
    static const int raise_widgets[] = {WID_NSS_CLIENTS_BTND, WID_NSS_CLIENTS_BTNU, WID_NSS_COMPANIES_BTND, WID_NSS_COMPANIES_BTNU, WID_NSS_SPECTATORS_BTND, WID_NSS_SPECTATORS_BTNU, WIDGET_LIST_END};
    for (const int *widget = raise_widgets; *widget != WIDGET_LIST_END; widget++) {
      if (this->IsWidgetLowered(*widget)) {
        this->RaiseWidget(*widget);
        this->SetWidgetDirty(*widget);
      }
    }
  }
 
  void OnQueryTextFinished(char *str) override
  {
    if (str == nullptr) return;
 
    if (this->widget_id == WID_NSS_SETPWD) {
      strecpy(_settings_client.network.server_password, str, lastof(_settings_client.network.server_password));
    } else {
      int32 value = atoi(str);
      this->SetWidgetDirty(this->widget_id);
      switch (this->widget_id) {
        default: NOT_REACHED();
        case WID_NSS_CLIENTS_TXT:    _settings_client.network.max_clients    = Clamp(value, 2, MAX_CLIENTS); break;
        case WID_NSS_COMPANIES_TXT:  _settings_client.network.max_companies  = Clamp(value, 1, MAX_COMPANIES); break;
        case WID_NSS_SPECTATORS_TXT: _settings_client.network.max_spectators = Clamp(value, 0, MAX_CLIENTS); break;
      }
    }
 
    this->SetDirty();
  }
};
 
static const NWidgetPart _nested_network_start_server_window_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_LIGHT_BLUE),
    NWidget(WWT_CAPTION, COLOUR_LIGHT_BLUE), SetDataTip(STR_NETWORK_START_SERVER_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NSS_BACKGROUND),
    NWidget(NWID_VERTICAL), SetPIP(10, 6, 10),
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 6, 10),
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          /* Game name widgets */
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_GAMENAME_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_NEW_GAME_NAME, STR_NULL),
          NWidget(WWT_EDITBOX, COLOUR_LIGHT_BLUE, WID_NSS_GAMENAME), SetMinimalSize(10, 12), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_NEW_GAME_NAME_OSKTITLE, STR_NETWORK_START_SERVER_NEW_GAME_NAME_TOOLTIP),
        EndContainer(),
      EndContainer(),
 
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 6, 10),
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_CONNTYPE_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_ADVERTISED_LABEL, STR_NULL),
          NWidget(WWT_DROPDOWN, COLOUR_LIGHT_BLUE, WID_NSS_CONNTYPE_BTN), SetFill(1, 0), SetDataTip(STR_BLACK_STRING, STR_NETWORK_START_SERVER_ADVERTISED_TOOLTIP),
        EndContainer(),
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_LANGUAGE_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_LANGUAGE_SPOKEN, STR_NULL),
          NWidget(WWT_DROPDOWN, COLOUR_LIGHT_BLUE, WID_NSS_LANGUAGE_BTN), SetFill(1, 0), SetDataTip(STR_BLACK_STRING, STR_NETWORK_START_SERVER_LANGUAGE_TOOLTIP),
        EndContainer(),
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(NWID_SPACER), SetFill(1, 1),
          NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_SETPWD), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_SET_PASSWORD, STR_NETWORK_START_SERVER_PASSWORD_TOOLTIP),
        EndContainer(),
      EndContainer(),
 
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 6, 10),
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_CLIENTS_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS, STR_NULL),
          NWidget(NWID_HORIZONTAL),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_CLIENTS_BTND), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_DOWN, STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_LIGHT_BLUE, WID_NSS_CLIENTS_TXT), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_CLIENTS_SELECT, STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS_TOOLTIP),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_CLIENTS_BTNU), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_UP, STR_NETWORK_START_SERVER_NUMBER_OF_CLIENTS_TOOLTIP),
          EndContainer(),
        EndContainer(),
 
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_COMPANIES_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES, STR_NULL),
          NWidget(NWID_HORIZONTAL),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_COMPANIES_BTND), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_DOWN, STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_LIGHT_BLUE, WID_NSS_COMPANIES_TXT), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_COMPANIES_SELECT, STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES_TOOLTIP),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_COMPANIES_BTNU), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_UP, STR_NETWORK_START_SERVER_NUMBER_OF_COMPANIES_TOOLTIP),
          EndContainer(),
        EndContainer(),
 
        NWidget(NWID_VERTICAL), SetPIP(0, 1, 0),
          NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NSS_SPECTATORS_LABEL), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS, STR_NULL),
          NWidget(NWID_HORIZONTAL),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_SPECTATORS_BTND), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_DOWN, STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS_TOOLTIP),
            NWidget(WWT_PUSHTXTBTN, COLOUR_LIGHT_BLUE, WID_NSS_SPECTATORS_TXT), SetFill(1, 0), SetDataTip(STR_NETWORK_START_SERVER_SPECTATORS_SELECT, STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS_TOOLTIP),
            NWidget(WWT_IMGBTN, COLOUR_LIGHT_BLUE, WID_NSS_SPECTATORS_BTNU), SetMinimalSize(12, 12), SetFill(0, 1), SetDataTip(SPR_ARROW_UP, STR_NETWORK_START_SERVER_NUMBER_OF_SPECTATORS_TOOLTIP),
          EndContainer(),
        EndContainer(),
      EndContainer(),
 
      /* 'generate game' and 'load game' buttons */
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 6, 10),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_GENERATE_GAME), SetDataTip(STR_INTRO_NEW_GAME, STR_INTRO_TOOLTIP_NEW_GAME), SetFill(1, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_LOAD_GAME), SetDataTip(STR_INTRO_LOAD_GAME, STR_INTRO_TOOLTIP_LOAD_GAME), SetFill(1, 0),
      EndContainer(),
 
      /* 'play scenario' and 'play heightmap' buttons */
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 6, 10),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_PLAY_SCENARIO), SetDataTip(STR_INTRO_PLAY_SCENARIO, STR_INTRO_TOOLTIP_PLAY_SCENARIO), SetFill(1, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_PLAY_HEIGHTMAP), SetDataTip(STR_INTRO_PLAY_HEIGHTMAP, STR_INTRO_TOOLTIP_PLAY_HEIGHTMAP), SetFill(1, 0),
      EndContainer(),
 
      NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
        NWidget(NWID_SPACER), SetFill(1, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NSS_CANCEL), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), SetMinimalSize(128, 12),
        NWidget(NWID_SPACER), SetFill(1, 0),
      EndContainer(),
    EndContainer(),
  EndContainer(),
};
 
static WindowDesc _network_start_server_window_desc(
  WDP_CENTER, nullptr, 0, 0,
  WC_NETWORK_WINDOW, WC_NONE,
  0,
  _nested_network_start_server_window_widgets, lengthof(_nested_network_start_server_window_widgets)
);
 
static void ShowNetworkStartServerWindow()
{
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_GAME);
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_LOBBY);
 
  new NetworkStartServerWindow(&_network_start_server_window_desc);
}
 
struct NetworkLobbyWindow : public Window {
  CompanyID company;       
  NetworkGameList *server; 
  NetworkCompanyInfo company_info[MAX_COMPANIES];
  Scrollbar *vscroll;
 
  NetworkLobbyWindow(WindowDesc *desc, NetworkGameList *ngl) :
      Window(desc), company(INVALID_COMPANY), server(ngl)
  {
    this->CreateNestedTree();
    this->vscroll = this->GetScrollbar(WID_NL_SCROLLBAR);
    this->FinishInitNested(WN_NETWORK_WINDOW_LOBBY);
  }
 
  CompanyID NetworkLobbyFindCompanyIndex(byte pos) const
  {
    /* Scroll through all this->company_info and get the 'pos' item that is not empty. */
    for (CompanyID i = COMPANY_FIRST; i < MAX_COMPANIES; i++) {
      if (!StrEmpty(this->company_info[i].company_name)) {
        if (pos-- == 0) return i;
      }
    }
 
    return COMPANY_FIRST;
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    switch (widget) {
      case WID_NL_HEADER:
        size->height = WD_MATRIX_TOP + FONT_HEIGHT_NORMAL + WD_MATRIX_BOTTOM;
        break;
 
      case WID_NL_MATRIX:
        resize->height = WD_MATRIX_TOP + FONT_HEIGHT_NORMAL + WD_MATRIX_BOTTOM;
        size->height = 10 * resize->height;
        break;
 
      case WID_NL_DETAILS:
        size->height = 30 + 11 * FONT_HEIGHT_NORMAL;
        break;
    }
  }
 
  void SetStringParameters(int widget) const override
  {
    switch (widget) {
      case WID_NL_TEXT:
        SetDParamStr(0, this->server->info.server_name);
        break;
    }
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    switch (widget) {
      case WID_NL_DETAILS:
        this->DrawDetails(r);
        break;
 
      case WID_NL_MATRIX:
        this->DrawMatrix(r);
        break;
    }
  }
 
  void OnPaint() override
  {
    const NetworkGameInfo *gi = &this->server->info;
 
    /* Join button is disabled when no company is selected and for AI companies. */
    this->SetWidgetDisabledState(WID_NL_JOIN, this->company == INVALID_COMPANY || GetLobbyCompanyInfo(this->company)->ai);
    /* Cannot start new company if there are too many. */
    this->SetWidgetDisabledState(WID_NL_NEW, gi->companies_on >= gi->companies_max);
    /* Cannot spectate if there are too many spectators. */
    this->SetWidgetDisabledState(WID_NL_SPECTATE, gi->spectators_on >= gi->spectators_max);
 
    this->vscroll->SetCount(gi->companies_on);
 
    /* Draw window widgets */
    this->DrawWidgets();
  }
 
  void DrawMatrix(const Rect &r) const
  {
    bool rtl = _current_text_dir == TD_RTL;
    uint left = r.left + WD_FRAMERECT_LEFT;
    uint right = r.right - WD_FRAMERECT_RIGHT;
 
    Dimension lock_size = GetSpriteSize(SPR_LOCK);
    int lock_width      = lock_size.width;
    int lock_y_offset   = (this->resize.step_height - WD_MATRIX_TOP - WD_MATRIX_BOTTOM - lock_size.height) / 2;
 
    Dimension profit_size = GetSpriteSize(SPR_PROFIT_LOT);
    int profit_width      = lock_size.width;
    int profit_y_offset   = (this->resize.step_height - WD_MATRIX_TOP - WD_MATRIX_BOTTOM - profit_size.height) / 2;
 
    uint text_left   = left  + (rtl ? lock_width + profit_width + 4 : 0);
    uint text_right  = right - (rtl ? 0 : lock_width + profit_width + 4);
    uint profit_left = rtl ? left : right - profit_width;
    uint lock_left   = rtl ? left + profit_width + 2 : right - profit_width - lock_width - 2;
 
    int y = r.top + WD_MATRIX_TOP;
    /* Draw company list */
    int pos = this->vscroll->GetPosition();
    while (pos < this->server->info.companies_on) {
      byte company = NetworkLobbyFindCompanyIndex(pos);
      bool income = false;
      if (this->company == company) {
        GfxFillRect(r.left + 1, y - 2, r.right - 1, y + FONT_HEIGHT_NORMAL, PC_GREY); // show highlighted item with a different colour
      }
 
      DrawString(text_left, text_right, y, this->company_info[company].company_name, TC_BLACK);
      if (this->company_info[company].use_password != 0) DrawSprite(SPR_LOCK, PAL_NONE, lock_left, y + lock_y_offset);
 
      /* If the company's income was positive puts a green dot else a red dot */
      if (this->company_info[company].income >= 0) income = true;
      DrawSprite(income ? SPR_PROFIT_LOT : SPR_PROFIT_NEGATIVE, PAL_NONE, profit_left, y + profit_y_offset);
 
      pos++;
      y += this->resize.step_height;
      if (pos >= this->vscroll->GetPosition() + this->vscroll->GetCapacity()) break;
    }
  }
 
  void DrawDetails(const Rect &r) const
  {
    const int detail_height = 12 + FONT_HEIGHT_NORMAL + 12;
    /* Draw info about selected company when it is selected in the left window. */
    GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.top + detail_height - 1, PC_DARK_BLUE);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + 12, STR_NETWORK_GAME_LOBBY_COMPANY_INFO, TC_FROMSTRING, SA_HOR_CENTER);
 
    if (this->company == INVALID_COMPANY || StrEmpty(this->company_info[this->company].company_name)) return;
 
    int y = r.top + detail_height + 4;
    const NetworkGameInfo *gi = &this->server->info;
 
    SetDParam(0, gi->clients_on);
    SetDParam(1, gi->clients_max);
    SetDParam(2, gi->companies_on);
    SetDParam(3, gi->companies_max);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_SERVER_LIST_CLIENTS);
    y += FONT_HEIGHT_NORMAL;
 
    SetDParamStr(0, this->company_info[this->company].company_name);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_COMPANY_NAME);
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].inaugurated_year);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_INAUGURATION_YEAR); // inauguration year
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].company_value);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_VALUE); // company value
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].money);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_CURRENT_BALANCE); // current balance
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].income);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_LAST_YEARS_INCOME); // last year's income
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].performance);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_PERFORMANCE); // performance
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].num_vehicle[NETWORK_VEH_TRAIN]);
    SetDParam(1, this->company_info[this->company].num_vehicle[NETWORK_VEH_LORRY]);
    SetDParam(2, this->company_info[this->company].num_vehicle[NETWORK_VEH_BUS]);
    SetDParam(3, this->company_info[this->company].num_vehicle[NETWORK_VEH_SHIP]);
    SetDParam(4, this->company_info[this->company].num_vehicle[NETWORK_VEH_PLANE]);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_VEHICLES); // vehicles
    y += FONT_HEIGHT_NORMAL;
 
    SetDParam(0, this->company_info[this->company].num_station[NETWORK_VEH_TRAIN]);
    SetDParam(1, this->company_info[this->company].num_station[NETWORK_VEH_LORRY]);
    SetDParam(2, this->company_info[this->company].num_station[NETWORK_VEH_BUS]);
    SetDParam(3, this->company_info[this->company].num_station[NETWORK_VEH_SHIP]);
    SetDParam(4, this->company_info[this->company].num_station[NETWORK_VEH_PLANE]);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_STATIONS); // stations
    y += FONT_HEIGHT_NORMAL;
 
    SetDParamStr(0, this->company_info[this->company].clients);
    DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_NETWORK_GAME_LOBBY_PLAYERS); // players
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    switch (widget) {
      case WID_NL_CANCEL:   // Cancel button
        ShowNetworkGameWindow();
        break;
 
      case WID_NL_MATRIX: { // Company list
        uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NL_MATRIX);
        this->company = (id_v >= this->server->info.companies_on) ? INVALID_COMPANY : NetworkLobbyFindCompanyIndex(id_v);
        this->SetDirty();
 
        /* FIXME the disabling should go into some InvalidateData, which is called instead of the SetDirty */
        if (click_count > 1 && !this->IsWidgetDisabled(WID_NL_JOIN)) this->OnClick(pt, WID_NL_JOIN, 1);
        break;
      }
 
      case WID_NL_JOIN:     // Join company
        /* Button can be clicked only when it is enabled. */
        NetworkClientConnectGame(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port), this->company);
        break;
 
      case WID_NL_NEW:      // New company
        NetworkClientConnectGame(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port), COMPANY_NEW_COMPANY);
        break;
 
      case WID_NL_SPECTATE: // Spectate game
        NetworkClientConnectGame(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port), COMPANY_SPECTATOR);
        break;
 
      case WID_NL_REFRESH:  // Refresh
        NetworkTCPQueryServer(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port)); // company info
        NetworkUDPQueryServer(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port)); // general data
        /* Clear the information so removed companies don't remain */
        for (auto &company : this->company_info) company = {};
        break;
    }
  }
 
  void OnResize() override
  {
    this->vscroll->SetCapacityFromWidget(this, WID_NL_MATRIX);
  }
};
 
static const NWidgetPart _nested_network_lobby_window_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_LIGHT_BLUE),
    NWidget(WWT_CAPTION, COLOUR_LIGHT_BLUE), SetDataTip(STR_NETWORK_GAME_LOBBY_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NL_BACKGROUND),
    NWidget(WWT_TEXT, COLOUR_LIGHT_BLUE, WID_NL_TEXT), SetDataTip(STR_NETWORK_GAME_LOBBY_PREPARE_TO_JOIN, STR_NULL), SetResize(1, 0), SetPadding(10, 10, 0, 10),
    NWidget(NWID_SPACER), SetMinimalSize(0, 3),
    NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 10),
      /* Company list. */
      NWidget(NWID_VERTICAL),
        NWidget(WWT_PANEL, COLOUR_WHITE, WID_NL_HEADER), SetMinimalSize(146, 0), SetResize(1, 0), SetFill(1, 0), EndContainer(),
        NWidget(WWT_MATRIX, COLOUR_LIGHT_BLUE, WID_NL_MATRIX), SetMinimalSize(146, 0), SetResize(1, 1), SetFill(1, 1), SetMatrixDataTip(1, 0, STR_NETWORK_GAME_LOBBY_COMPANY_LIST_TOOLTIP), SetScrollbar(WID_NL_SCROLLBAR),
      EndContainer(),
      NWidget(NWID_VSCROLLBAR, COLOUR_LIGHT_BLUE, WID_NL_SCROLLBAR),
      NWidget(NWID_SPACER), SetMinimalSize(5, 0), SetResize(0, 1),
      /* Company info. */
      NWidget(WWT_PANEL, COLOUR_LIGHT_BLUE, WID_NL_DETAILS), SetMinimalSize(232, 0), SetResize(1, 1), SetFill(1, 1), EndContainer(),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 9),
    /* Buttons. */
    NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 3, 10),
      NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(0, 3, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NL_JOIN), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_GAME_LOBBY_JOIN_COMPANY, STR_NETWORK_GAME_LOBBY_JOIN_COMPANY_TOOLTIP),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NL_NEW), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_GAME_LOBBY_NEW_COMPANY, STR_NETWORK_GAME_LOBBY_NEW_COMPANY_TOOLTIP),
      EndContainer(),
      NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(0, 3, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NL_SPECTATE), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_GAME_LOBBY_SPECTATE_GAME, STR_NETWORK_GAME_LOBBY_SPECTATE_GAME_TOOLTIP),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NL_REFRESH), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_NETWORK_SERVER_LIST_REFRESH, STR_NETWORK_SERVER_LIST_REFRESH_TOOLTIP),
      EndContainer(),
      NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(0, 3, 0),
        NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NL_CANCEL), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_BUTTON_CANCEL, STR_NULL),
        NWidget(NWID_SPACER), SetFill(1, 1),
      EndContainer(),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 8),
  EndContainer(),
};
 
static WindowDesc _network_lobby_window_desc(
  WDP_CENTER, nullptr, 0, 0,
  WC_NETWORK_WINDOW, WC_NONE,
  0,
  _nested_network_lobby_window_widgets, lengthof(_nested_network_lobby_window_widgets)
);
 
static void ShowNetworkLobbyWindow(NetworkGameList *ngl)
{
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_START);
  DeleteWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_GAME);
 
  NetworkTCPQueryServer(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port)); // company info
  NetworkUDPQueryServer(NetworkAddress(_settings_client.network.last_host, _settings_client.network.last_port)); // general data
 
  new NetworkLobbyWindow(&_network_lobby_window_desc, ngl);
}
 
NetworkCompanyInfo *GetLobbyCompanyInfo(CompanyID company)
{
  NetworkLobbyWindow *lobby = dynamic_cast<NetworkLobbyWindow*>(FindWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_LOBBY));
  return (lobby != nullptr && company < MAX_COMPANIES) ? &lobby->company_info[company] : nullptr;
}
 
/* The window below gives information about the connected clients
 * and also makes able to kick them (if server) and stuff like that. */
 
extern void DrawCompanyIcon(CompanyID cid, int x, int y);
 
typedef void ClientList_Action_Proc(const NetworkClientInfo *ci);
 
static const NWidgetPart _nested_client_list_popup_widgets[] = {
  NWidget(WWT_PANEL, COLOUR_GREY, WID_CLP_PANEL), EndContainer(),
};
 
static WindowDesc _client_list_popup_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_CLIENT_LIST_POPUP, WC_CLIENT_LIST,
  0,
  _nested_client_list_popup_widgets, lengthof(_nested_client_list_popup_widgets)
);
 
/* Here we start to define the options out of the menu */
static void ClientList_Kick(const NetworkClientInfo *ci)
{
  NetworkServerKickClient(ci->client_id, nullptr);
}
 
static void ClientList_Ban(const NetworkClientInfo *ci)
{
  NetworkServerKickOrBanIP(ci->client_id, true, nullptr);
}
 
static void ClientList_SpeakToClient(const NetworkClientInfo *ci)
{
  ShowNetworkChatQueryWindow(DESTTYPE_CLIENT, ci->client_id);
}
 
static void ClientList_SpeakToCompany(const NetworkClientInfo *ci)
{
  ShowNetworkChatQueryWindow(DESTTYPE_TEAM, ci->client_playas);
}
 
static void ClientList_SpeakToAll(const NetworkClientInfo *ci)
{
  ShowNetworkChatQueryWindow(DESTTYPE_BROADCAST, 0);
}
 
struct NetworkClientListPopupWindow : Window {
  struct ClientListAction {
    StringID name;                
    ClientList_Action_Proc *proc; 
  };
 
  uint sel_index;
  ClientID client_id;
  Point desired_location;
  std::vector<ClientListAction> actions; 
 
  inline void AddAction(StringID name, ClientList_Action_Proc *proc)
  {
    this->actions.push_back({name, proc});
  }
 
  NetworkClientListPopupWindow(WindowDesc *desc, int x, int y, ClientID client_id) :
      Window(desc),
      sel_index(0), client_id(client_id)
  {
    this->desired_location.x = x;
    this->desired_location.y = y;
 
    const NetworkClientInfo *ci = NetworkClientInfo::GetByClientID(client_id);
 
    if (_network_own_client_id != ci->client_id) {
      this->AddAction(STR_NETWORK_CLIENTLIST_SPEAK_TO_CLIENT, &ClientList_SpeakToClient);
    }
 
    if (Company::IsValidID(ci->client_playas) || ci->client_playas == COMPANY_SPECTATOR) {
      this->AddAction(STR_NETWORK_CLIENTLIST_SPEAK_TO_COMPANY, &ClientList_SpeakToCompany);
    }
    this->AddAction(STR_NETWORK_CLIENTLIST_SPEAK_TO_ALL, &ClientList_SpeakToAll);
 
    /* A server can kick clients (but not himself). */
    if (_network_server && _network_own_client_id != ci->client_id) {
      this->AddAction(STR_NETWORK_CLIENTLIST_KICK, &ClientList_Kick);
      this->AddAction(STR_NETWORK_CLIENTLIST_BAN, &ClientList_Ban);
    }
 
    this->InitNested(client_id);
    CLRBITS(this->flags, WF_WHITE_BORDER);
  }
 
  Point OnInitialPosition(int16 sm_width, int16 sm_height, int window_number) override
  {
    return this->desired_location;
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    Dimension d = *size;
    for (const ClientListAction &action : this->actions) {
      d = maxdim(GetStringBoundingBox(action.name), d);
    }
 
    d.height *= (uint)this->actions.size();
    d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
    d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    *size = d;
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    /* Draw the actions */
    int sel = this->sel_index;
    int y = r.top + WD_FRAMERECT_TOP;
    for (const ClientListAction &action : this->actions) {
      TextColour colour;
      if (sel-- == 0) { // Selected item, highlight it
        GfxFillRect(r.left + 1, y, r.right - 1, y + FONT_HEIGHT_NORMAL - 1, PC_BLACK);
        colour = TC_WHITE;
      } else {
        colour = TC_BLACK;
      }
 
      DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, action.name, colour);
      y += FONT_HEIGHT_NORMAL;
    }
  }
 
  void OnMouseLoop() override
  {
    /* We selected an action */
    uint index = (_cursor.pos.y - this->top - WD_FRAMERECT_TOP) / FONT_HEIGHT_NORMAL;
 
    if (_left_button_down) {
      if (index == this->sel_index || index >= this->actions.size()) return;
 
      this->sel_index = index;
      this->SetDirty();
    } else {
      if (index < this->actions.size() && _cursor.pos.y >= this->top) {
        const NetworkClientInfo *ci = NetworkClientInfo::GetByClientID(this->client_id);
        if (ci != nullptr) this->actions[index].proc(ci);
      }
 
      DeleteWindowByClass(WC_CLIENT_LIST_POPUP);
    }
  }
};
 
static void PopupClientList(ClientID client_id, int x, int y)
{
  DeleteWindowByClass(WC_CLIENT_LIST_POPUP);
 
  if (NetworkClientInfo::GetByClientID(client_id) == nullptr) return;
 
  new NetworkClientListPopupWindow(&_client_list_popup_desc, x, y, client_id);
}
 
static const NWidgetPart _nested_client_list_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_NETWORK_COMPANY_LIST_CLIENT_LIST_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    NWidget(WWT_STICKYBOX, COLOUR_GREY),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_GREY, WID_CL_PANEL), SetMinimalSize(250, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM), SetResize(1, 1), EndContainer(),
};
 
static WindowDesc _client_list_desc(
  WDP_AUTO, "list_clients", 0, 0,
  WC_CLIENT_LIST, WC_NONE,
  0,
  _nested_client_list_widgets, lengthof(_nested_client_list_widgets)
);
 
struct NetworkClientListWindow : Window {
  int selected_item;
 
  uint server_client_width;
  uint line_height;
 
  Dimension icon_size;
 
  NetworkClientListWindow(WindowDesc *desc, WindowNumber window_number) :
      Window(desc),
      selected_item(-1)
  {
    this->InitNested(window_number);
  }
 
  bool CheckClientListHeight()
  {
    int num = 0;
 
    /* Should be replaced with a loop through all clients */
    for (const NetworkClientInfo *ci : NetworkClientInfo::Iterate()) {
      if (ci->client_playas != COMPANY_INACTIVE_CLIENT) num++;
    }
 
    num *= this->line_height;
 
    int diff = (num + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM) - (this->GetWidget<NWidgetBase>(WID_CL_PANEL)->current_y);
    /* If height is changed */
    if (diff != 0) {
      ResizeWindow(this, 0, diff, false);
      return false;
    }
    return true;
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    if (widget != WID_CL_PANEL) return;
 
    this->server_client_width = std::max(GetStringBoundingBox(STR_NETWORK_SERVER).width, GetStringBoundingBox(STR_NETWORK_CLIENT).width) + WD_FRAMERECT_RIGHT;
    this->icon_size = GetSpriteSize(SPR_COMPANY_ICON);
    this->line_height = std::max(this->icon_size.height + 2U, (uint)FONT_HEIGHT_NORMAL);
 
    uint width = 100; // Default width
    for (const NetworkClientInfo *ci : NetworkClientInfo::Iterate()) {
      width = std::max(width, GetStringBoundingBox(ci->client_name).width);
    }
 
    size->width = WD_FRAMERECT_LEFT + this->server_client_width + this->icon_size.width + WD_FRAMERECT_LEFT + width + WD_FRAMERECT_RIGHT;
  }
 
  void OnPaint() override
  {
    /* Check if we need to reset the height */
    if (!this->CheckClientListHeight()) return;
 
    this->DrawWidgets();
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    if (widget != WID_CL_PANEL) return;
 
    bool rtl = _current_text_dir == TD_RTL;
    int icon_offset = (this->line_height - icon_size.height) / 2;
    int text_offset = (this->line_height - FONT_HEIGHT_NORMAL) / 2;
 
    uint y = r.top + WD_FRAMERECT_TOP;
    uint left = r.left + WD_FRAMERECT_LEFT;
    uint right = r.right - WD_FRAMERECT_RIGHT;
    uint type_icon_width = this->server_client_width + this->icon_size.width + WD_FRAMERECT_LEFT;
 
 
    uint type_left  = rtl ? right - this->server_client_width : left;
    uint type_right = rtl ? right : left + this->server_client_width - 1;
    uint icon_left  = rtl ? right - type_icon_width + WD_FRAMERECT_LEFT : left + this->server_client_width;
    uint name_left  = rtl ? left : left + type_icon_width;
    uint name_right = rtl ? right - type_icon_width : right;
 
    int i = 0;
    for (const NetworkClientInfo *ci : NetworkClientInfo::Iterate()) {
      TextColour colour;
      if (this->selected_item == i++) { // Selected item, highlight it
        GfxFillRect(r.left + 1, y, r.right - 1, y + this->line_height - 1, PC_BLACK);
        colour = TC_WHITE;
      } else {
        colour = TC_BLACK;
      }
 
      if (ci->client_id == CLIENT_ID_SERVER) {
        DrawString(type_left, type_right, y + text_offset, STR_NETWORK_SERVER, colour);
      } else {
        DrawString(type_left, type_right, y + text_offset, STR_NETWORK_CLIENT, colour);
      }
 
      /* Filter out spectators */
      if (Company::IsValidID(ci->client_playas)) DrawCompanyIcon(ci->client_playas, icon_left, y + icon_offset);
 
      DrawString(name_left, name_right, y + text_offset, ci->client_name, colour);
 
      y += line_height;
    }
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    /* Show the popup with option */
    if (this->selected_item != -1) {
      int client_no = this->selected_item;
      for (NetworkClientInfo *ci : NetworkClientInfo::Iterate()) {
        if (client_no == 0) {
          PopupClientList(ci->client_id, pt.x + this->left, pt.y + this->top);
          break;
        }
        client_no--;
      }
    }
  }
 
  void OnMouseOver(Point pt, int widget) override
  {
    /* -1 means we left the current window */
    if (pt.y == -1) {
      this->selected_item = -1;
      this->SetDirty();
      return;
    }
 
    /* Find the new selected item (if any) */
    pt.y -= this->GetWidget<NWidgetBase>(WID_CL_PANEL)->pos_y;
    int item = -1;
    if (IsInsideMM(pt.y, WD_FRAMERECT_TOP, this->GetWidget<NWidgetBase>(WID_CL_PANEL)->current_y - WD_FRAMERECT_BOTTOM)) {
      item = (pt.y - WD_FRAMERECT_TOP) / this->line_height;
    }
 
    /* It did not change.. no update! */
    if (item == this->selected_item) return;
    this->selected_item = item;
 
    /* Repaint */
    this->SetDirty();
  }
};
 
void ShowClientList()
{
  AllocateWindowDescFront<NetworkClientListWindow>(&_client_list_desc, 0);
}
 
NetworkJoinStatus _network_join_status; 
uint8 _network_join_waiting;            
uint32 _network_join_bytes;             
uint32 _network_join_bytes_total;       
 
struct NetworkJoinStatusWindow : Window {
  NetworkPasswordType password_type;
 
  NetworkJoinStatusWindow(WindowDesc *desc) : Window(desc)
  {
    this->parent = FindWindowById(WC_NETWORK_WINDOW, WN_NETWORK_WINDOW_GAME);
    this->InitNested(WN_NETWORK_STATUS_WINDOW_JOIN);
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    if (widget != WID_NJS_BACKGROUND) return;
 
    uint8 progress; // used for progress bar
    DrawString(r.left + 2, r.right - 2, r.top + 20, STR_NETWORK_CONNECTING_1 + _network_join_status, TC_FROMSTRING, SA_HOR_CENTER);
    switch (_network_join_status) {
      case NETWORK_JOIN_STATUS_CONNECTING: case NETWORK_JOIN_STATUS_AUTHORIZING:
      case NETWORK_JOIN_STATUS_GETTING_COMPANY_INFO:
        progress = 10; // first two stages 10%
        break;
      case NETWORK_JOIN_STATUS_WAITING:
        SetDParam(0, _network_join_waiting);
        DrawString(r.left + 2, r.right - 2, r.top + 20 + FONT_HEIGHT_NORMAL, STR_NETWORK_CONNECTING_WAITING, TC_FROMSTRING, SA_HOR_CENTER);
        progress = 15; // third stage is 15%
        break;
      case NETWORK_JOIN_STATUS_DOWNLOADING:
        SetDParam(0, _network_join_bytes);
        SetDParam(1, _network_join_bytes_total);
        DrawString(r.left + 2, r.right - 2, r.top + 20 + FONT_HEIGHT_NORMAL, _network_join_bytes_total == 0 ? STR_NETWORK_CONNECTING_DOWNLOADING_1 : STR_NETWORK_CONNECTING_DOWNLOADING_2, TC_FROMSTRING, SA_HOR_CENTER);
        if (_network_join_bytes_total == 0) {
          progress = 15; // We don't have the final size yet; the server is still compressing!
          break;
        }
        FALLTHROUGH;
 
      default: // Waiting is 15%, so the resting receivement of map is maximum 70%
        progress = 15 + _network_join_bytes * (100 - 15) / _network_join_bytes_total;
    }
 
    /* Draw nice progress bar :) */
    DrawFrameRect(r.left + 20, r.top + 5, (int)((this->width - 20) * progress / 100), r.top + 15, COLOUR_MAUVE, FR_NONE);
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    if (widget != WID_NJS_BACKGROUND) return;
 
    size->height = 25 + 2 * FONT_HEIGHT_NORMAL;
 
    /* Account for the statuses */
    uint width = 0;
    for (uint i = 0; i < NETWORK_JOIN_STATUS_END; i++) {
      width = std::max(width, GetStringBoundingBox(STR_NETWORK_CONNECTING_1 + i).width);
    }
 
    /* For the number of waiting (other) players */
    SetDParamMaxValue(0, MAX_CLIENTS);
    width = std::max(width, GetStringBoundingBox(STR_NETWORK_CONNECTING_WAITING).width);
 
    /* Account for downloading ~ 10 MiB */
    SetDParamMaxDigits(0, 8);
    SetDParamMaxDigits(1, 8);
    width = std::max(width, GetStringBoundingBox(STR_NETWORK_CONNECTING_DOWNLOADING_1).width);
    width = std::max(width, GetStringBoundingBox(STR_NETWORK_CONNECTING_DOWNLOADING_2).width);
 
    /* Give a bit more clearing for the widest strings than strictly needed */
    size->width = width + WD_FRAMERECT_LEFT + WD_FRAMERECT_BOTTOM + 10;
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    if (widget == WID_NJS_CANCELOK) { // Disconnect button
      NetworkDisconnect();
      SwitchToMode(SM_MENU);
      ShowNetworkGameWindow();
    }
  }
 
  void OnQueryTextFinished(char *str) override
  {
    if (StrEmpty(str)) {
      NetworkDisconnect();
      ShowNetworkGameWindow();
      return;
    }
 
    switch (this->password_type) {
      case NETWORK_GAME_PASSWORD:    MyClient::SendGamePassword   (str); break;
      case NETWORK_COMPANY_PASSWORD: MyClient::SendCompanyPassword(str); break;
      default: NOT_REACHED();
    }
  }
};
 
static const NWidgetPart _nested_network_join_status_window_widgets[] = {
  NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_NETWORK_CONNECTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  NWidget(WWT_PANEL, COLOUR_GREY),
    NWidget(WWT_EMPTY, COLOUR_GREY, WID_NJS_BACKGROUND),
    NWidget(NWID_HORIZONTAL),
      NWidget(NWID_SPACER), SetMinimalSize(75, 0), SetFill(1, 0),
      NWidget(WWT_PUSHTXTBTN, COLOUR_WHITE, WID_NJS_CANCELOK), SetMinimalSize(101, 12), SetDataTip(STR_NETWORK_CONNECTION_DISCONNECT, STR_NULL),
      NWidget(NWID_SPACER), SetMinimalSize(75, 0), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 4),
  EndContainer(),
};
 
static WindowDesc _network_join_status_window_desc(
  WDP_CENTER, nullptr, 0, 0,
  WC_NETWORK_STATUS_WINDOW, WC_NONE,
  WDF_MODAL,
  _nested_network_join_status_window_widgets, lengthof(_nested_network_join_status_window_widgets)
);
 
void ShowJoinStatusWindow()
{
  DeleteWindowById(WC_NETWORK_STATUS_WINDOW, WN_NETWORK_STATUS_WINDOW_JOIN);
  new NetworkJoinStatusWindow(&_network_join_status_window_desc);
}
 
void ShowNetworkNeedPassword(NetworkPasswordType npt)
{
  NetworkJoinStatusWindow *w = (NetworkJoinStatusWindow *)FindWindowById(WC_NETWORK_STATUS_WINDOW, WN_NETWORK_STATUS_WINDOW_JOIN);
  if (w == nullptr) return;
  w->password_type = npt;
 
  StringID caption;
  switch (npt) {
    default: NOT_REACHED();
    case NETWORK_GAME_PASSWORD:    caption = STR_NETWORK_NEED_GAME_PASSWORD_CAPTION; break;
    case NETWORK_COMPANY_PASSWORD: caption = STR_NETWORK_NEED_COMPANY_PASSWORD_CAPTION; break;
  }
  ShowQueryString(STR_EMPTY, caption, NETWORK_PASSWORD_LENGTH, w, CS_ALPHANUMERAL, QSF_PASSWORD);
}
 
struct NetworkCompanyPasswordWindow : public Window {
  QueryString password_editbox; 
  Dimension warning_size;       
 
  NetworkCompanyPasswordWindow(WindowDesc *desc, Window *parent) : Window(desc), password_editbox(lengthof(_settings_client.network.default_company_pass))
  {
    this->InitNested(0);
    this->UpdateWarningStringSize();
 
    this->parent = parent;
    this->querystrings[WID_NCP_PASSWORD] = &this->password_editbox;
    this->password_editbox.cancel_button = WID_NCP_CANCEL;
    this->password_editbox.ok_button = WID_NCP_OK;
    this->SetFocusedWidget(WID_NCP_PASSWORD);
  }
 
  void UpdateWarningStringSize()
  {
    assert(this->nested_root->smallest_x > 0);
    this->warning_size.width = this->nested_root->current_x - (WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT);
    this->warning_size.height = GetStringHeight(STR_WARNING_PASSWORD_SECURITY, this->warning_size.width);
    this->warning_size.height += WD_FRAMETEXT_TOP + WD_FRAMETEXT_BOTTOM + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
 
    this->ReInit();
  }
 
  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    if (widget == WID_NCP_WARNING) {
      *size = this->warning_size;
    }
  }
 
  void DrawWidget(const Rect &r, int widget) const override
  {
    if (widget != WID_NCP_WARNING) return;
 
    DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT,
      r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM,
      STR_WARNING_PASSWORD_SECURITY, TC_FROMSTRING, SA_CENTER);
  }
 
  void OnOk()
  {
    if (this->IsWidgetLowered(WID_NCP_SAVE_AS_DEFAULT_PASSWORD)) {
      strecpy(_settings_client.network.default_company_pass, this->password_editbox.text.buf, lastof(_settings_client.network.default_company_pass));
    }
 
    NetworkChangeCompanyPassword(_local_company, this->password_editbox.text.buf);
  }
 
  void OnClick(Point pt, int widget, int click_count) override
  {
    switch (widget) {
      case WID_NCP_OK:
        this->OnOk();
        FALLTHROUGH;
 
      case WID_NCP_CANCEL:
        delete this;
        break;
 
      case WID_NCP_SAVE_AS_DEFAULT_PASSWORD:
        this->ToggleWidgetLoweredState(WID_NCP_SAVE_AS_DEFAULT_PASSWORD);
        this->SetDirty();
        break;
    }
  }
};
 
static const NWidgetPart _nested_network_company_password_window_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_COMPANY_PASSWORD_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_GREY, WID_NCP_BACKGROUND),
    NWidget(NWID_VERTICAL), SetPIP(5, 5, 5),
      NWidget(NWID_HORIZONTAL), SetPIP(5, 5, 5),
        NWidget(WWT_TEXT, COLOUR_GREY, WID_NCP_LABEL), SetDataTip(STR_COMPANY_VIEW_PASSWORD, STR_NULL),
        NWidget(WWT_EDITBOX, COLOUR_GREY, WID_NCP_PASSWORD), SetFill(1, 0), SetMinimalSize(194, 12), SetDataTip(STR_COMPANY_VIEW_SET_PASSWORD, STR_NULL),
      EndContainer(),
      NWidget(NWID_HORIZONTAL), SetPIP(5, 0, 5),
        NWidget(NWID_SPACER), SetFill(1, 0),
        NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_NCP_SAVE_AS_DEFAULT_PASSWORD), SetMinimalSize(194, 12),
                      SetDataTip(STR_COMPANY_PASSWORD_MAKE_DEFAULT, STR_COMPANY_PASSWORD_MAKE_DEFAULT_TOOLTIP),
      EndContainer(),
    EndContainer(),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_GREY, WID_NCP_WARNING), EndContainer(),
  NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
    NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_NCP_CANCEL), SetFill(1, 0), SetDataTip(STR_BUTTON_CANCEL, STR_COMPANY_PASSWORD_CANCEL),
    NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_NCP_OK), SetFill(1, 0), SetDataTip(STR_BUTTON_OK, STR_COMPANY_PASSWORD_OK),
  EndContainer(),
};
 
static WindowDesc _network_company_password_window_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_COMPANY_PASSWORD_WINDOW, WC_NONE,
  0,
  _nested_network_company_password_window_widgets, lengthof(_nested_network_company_password_window_widgets)
);
 
void ShowNetworkCompanyPasswordWindow(Window *parent)
{
  DeleteWindowById(WC_COMPANY_PASSWORD_WINDOW, 0);
 
  new NetworkCompanyPasswordWindow(&_network_company_password_window_desc, parent);
}