/* $Id$ */ /* * 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/>. */ /** @file airport_gui.cpp The GUI for airports. */ #include "stdafx.h" #include "window_gui.h" #include "station_gui.h" #include "terraform_gui.h" #include "sound_func.h" #include "window_func.h" #include "strings_func.h" #include "viewport_func.h" #include "company_func.h" #include "tilehighlight_func.h" #include "company_base.h" #include "station_type.h" #include "newgrf_airport.h" #include "newgrf_callbacks.h" #include "widgets/dropdown_type.h" #include "core/geometry_func.hpp" #include "hotkeys.h" #include "sprite.h" #include "table/strings.h" static AirportClassID _selected_airport_class; ///< the currently visible airport class static int _selected_airport_index; ///< the index of the selected airport in the current class or -1 static byte _selected_airport_layout; ///< selected airport layout number. static void ShowBuildAirportPicker(Window *parent); SpriteID GetCustomAirportSprite(const AirportSpec *as, byte layout); void CcBuildAirport(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2) { if (result.Failed()) return; SndPlayTileFx(SND_1F_SPLAT, tile); if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace(); } static void PlaceAirport(TileIndex tile) { if (_selected_airport_index == -1) return; uint32 p2 = _ctrl_pressed; SB(p2, 16, 16, INVALID_STATION); // no station to join uint32 p1 = AirportClass::Get(_selected_airport_class, _selected_airport_index)->GetIndex(); p1 |= _selected_airport_layout << 8; CommandContainer cmdcont = { tile, p1, p2, CMD_BUILD_AIRPORT | CMD_MSG(STR_ERROR_CAN_T_BUILD_AIRPORT_HERE), CcBuildAirport, "" }; ShowSelectStationIfNeeded(cmdcont, TileArea(tile, _thd.size.x / TILE_SIZE, _thd.size.y / TILE_SIZE)); } /** Widget number of the airport build window. */ enum AirportToolbarWidgets { ATW_AIRPORT, ATW_DEMOLISH, }; static void BuildAirClick_Airport(Window *w) { if (HandlePlacePushButton(w, ATW_AIRPORT, SPR_CURSOR_AIRPORT, HT_RECT, PlaceAirport)) ShowBuildAirportPicker(w); } static void BuildAirClick_Demolish(Window *w) { HandlePlacePushButton(w, ATW_DEMOLISH, ANIMCURSOR_DEMOLISH, HT_RECT, PlaceProc_DemolishArea); } typedef void OnButtonClick(Window *w); static OnButtonClick * const _build_air_button_proc[] = { BuildAirClick_Airport, BuildAirClick_Demolish, }; struct BuildAirToolbarWindow : Window { BuildAirToolbarWindow(const WindowDesc *desc, WindowNumber window_number) : Window() { this->InitNested(desc, window_number); if (_settings_client.gui.link_terraform_toolbar) ShowTerraformToolbar(this); } ~BuildAirToolbarWindow() { if (_settings_client.gui.link_terraform_toolbar) DeleteWindowById(WC_SCEN_LAND_GEN, 0, false); } virtual void OnPaint() { this->DrawWidgets(); } virtual void OnClick(Point pt, int widget, int click_count) { if (!IsInsideBS(widget, ATW_AIRPORT, lengthof(_build_air_button_proc))) return; _build_air_button_proc[widget - ATW_AIRPORT](this); } virtual EventState OnKeyPress(uint16 key, uint16 keycode) { int num = CheckHotkeyMatch(airtoolbar_hotkeys, keycode, this); if (num == -1) return ES_NOT_HANDLED; this->OnClick(Point(), num, 1); return ES_HANDLED; } virtual void OnPlaceObject(Point pt, TileIndex tile) { _place_proc(tile); } virtual void OnPlaceDrag(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt) { VpSelectTilesWithMethod(pt.x, pt.y, select_method); } virtual void OnPlaceMouseUp(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt, TileIndex start_tile, TileIndex end_tile) { if (pt.x != -1 && select_proc == DDSP_DEMOLISH_AREA) { GUIPlaceProcDragXY(select_proc, start_tile, end_tile); } } virtual void OnPlaceObjectAbort() { this->RaiseButtons(); DeleteWindowById(WC_BUILD_STATION, TRANSPORT_AIR); DeleteWindowById(WC_SELECT_STATION, 0); } static Hotkey<BuildAirToolbarWindow> airtoolbar_hotkeys[]; }; Hotkey<BuildAirToolbarWindow> BuildAirToolbarWindow::airtoolbar_hotkeys[] = { Hotkey<BuildAirToolbarWindow>('1', "airport", ATW_AIRPORT), Hotkey<BuildAirToolbarWindow>('2', "demolish", ATW_DEMOLISH), HOTKEY_LIST_END(BuildAirToolbarWindow) }; Hotkey<BuildAirToolbarWindow> *_airtoolbar_hotkeys = BuildAirToolbarWindow::airtoolbar_hotkeys; static const NWidgetPart _nested_air_toolbar_widgets[] = { NWidget(NWID_HORIZONTAL), NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN), NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_TOOLBAR_AIRCRAFT_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN), EndContainer(), NWidget(NWID_HORIZONTAL), NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, ATW_AIRPORT), SetFill(0, 1), SetMinimalSize(42, 22), SetDataTip(SPR_IMG_AIRPORT, STR_TOOLBAR_AIRCRAFT_BUILD_AIRPORT_TOOLTIP), NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetMinimalSize(4, 22), SetFill(1, 1), EndContainer(), NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, ATW_DEMOLISH), SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC), EndContainer(), }; static const WindowDesc _air_toolbar_desc( WDP_ALIGN_TOOLBAR, 0, 0, WC_BUILD_TOOLBAR, WC_NONE, WDF_CONSTRUCTION, _nested_air_toolbar_widgets, lengthof(_nested_air_toolbar_widgets) ); /** * Open the build airport toolbar window * * If the terraform toolbar is linked to the toolbar, that window is also opened. * * @return newly opened airport toolbar, or NULL if the toolbar could not be opened. */ Window *ShowBuildAirToolbar() { if (!Company::IsValidID(_local_company)) return NULL; DeleteWindowByClass(WC_BUILD_TOOLBAR); return AllocateWindowDescFront<BuildAirToolbarWindow>(&_air_toolbar_desc, TRANSPORT_AIR); } EventState AirportToolbarGlobalHotkeys(uint16 key, uint16 keycode) { int num = CheckHotkeyMatch<BuildAirToolbarWindow>(_airtoolbar_hotkeys, keycode, NULL, true); if (num == -1) return ES_NOT_HANDLED; Window *w = ShowBuildAirToolbar(); if (w == NULL) return ES_NOT_HANDLED; return w->OnKeyPress(key, keycode); } /** Airport widgets in the airport picker window. */ enum AirportPickerWidgets { BAIRW_CLASS_DROPDOWN, BAIRW_AIRPORT_LIST, BAIRW_SCROLLBAR, BAIRW_LAYOUT_NUM, BAIRW_LAYOUT_DECREASE, BAIRW_LAYOUT_INCREASE, BAIRW_AIRPORT_SPRITE, BAIRW_EXTRA_TEXT, BAIRW_BOTTOMPANEL, BAIRW_COVERAGE_LABEL, BAIRW_BTN_DONTHILIGHT, BAIRW_BTN_DOHILIGHT, }; class BuildAirportWindow : public PickerWindowBase { SpriteID preview_sprite; ///< Cached airport preview sprite. int line_height; Scrollbar *vscroll; /** Build a dropdown list of available airport classes */ static DropDownList *BuildAirportClassDropDown() { DropDownList *list = new DropDownList(); for (uint i = 0; i < AirportClass::GetCount(); i++) { list->push_back(new DropDownListStringItem(AirportClass::GetName((AirportClassID)i), i, false)); } return list; } public: BuildAirportWindow(const WindowDesc *desc, Window *parent) : PickerWindowBase(parent) { this->CreateNestedTree(desc); this->vscroll = this->GetScrollbar(BAIRW_SCROLLBAR); this->vscroll->SetCapacity(5); this->vscroll->SetPosition(0); this->FinishInitNested(desc, TRANSPORT_AIR); this->SetWidgetLoweredState(BAIRW_BTN_DONTHILIGHT, !_settings_client.gui.station_show_coverage); this->SetWidgetLoweredState(BAIRW_BTN_DOHILIGHT, _settings_client.gui.station_show_coverage); this->OnInvalidateData(); this->vscroll->SetCount(AirportClass::GetCount(_selected_airport_class)); this->SelectFirstAvailableAirport(true); } virtual ~BuildAirportWindow() { DeleteWindowById(WC_SELECT_STATION, 0); } virtual void SetStringParameters(int widget) const { switch (widget) { case BAIRW_CLASS_DROPDOWN: SetDParam(0, AirportClass::GetName(_selected_airport_class)); break; case BAIRW_LAYOUT_NUM: SetDParam(0, STR_EMPTY); if (_selected_airport_index != -1) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, _selected_airport_index); StringID string = GetAirportTextCallback(as, _selected_airport_layout, CBID_AIRPORT_LAYOUT_NAME); if (string != STR_UNDEFINED) { SetDParam(0, string); } else if (as->num_table > 1) { SetDParam(0, STR_STATION_BUILD_AIRPORT_LAYOUT_NAME); SetDParam(1, _selected_airport_layout + 1); } } break; default: break; } } virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) { switch (widget) { case BAIRW_CLASS_DROPDOWN: { Dimension d = {0, 0}; for (uint i = 0; i < AirportClass::GetCount(); i++) { SetDParam(0, AirportClass::GetName((AirportClassID)i)); d = maxdim(d, GetStringBoundingBox(STR_BLACK_STRING)); } d.width += padding.width; d.height += padding.height; *size = maxdim(*size, d); break; } case BAIRW_AIRPORT_LIST: { for (int i = 0; i < NUM_AIRPORTS; i++) { const AirportSpec *as = AirportSpec::Get(i); if (!as->enabled) continue; size->width = max(size->width, GetStringBoundingBox(as->name).width); } this->line_height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM; size->height = this->vscroll->GetCapacity() * this->line_height; break; } case BAIRW_AIRPORT_SPRITE: for (int i = 0; i < NUM_AIRPORTS; i++) { const AirportSpec *as = AirportSpec::Get(i); if (!as->enabled) continue; for (byte layout = 0; layout < as->num_table; layout++) { SpriteID sprite = GetCustomAirportSprite(as, layout); if (sprite != 0) { Dimension d = GetSpriteSize(sprite); d.width += WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT; d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM; *size = maxdim(d, *size); } } } break; case BAIRW_EXTRA_TEXT: for (int i = NEW_AIRPORT_OFFSET; i < NUM_AIRPORTS; i++) { const AirportSpec *as = AirportSpec::Get(i); if (!as->enabled) continue; for (byte layout = 0; layout < as->num_table; layout++) { StringID string = GetAirportTextCallback(as, layout, CBID_AIRPORT_ADDITIONAL_TEXT); if (string == STR_UNDEFINED) continue; /* STR_BLACK_STRING is used to start the string with {BLACK} */ SetDParam(0, string); Dimension d = GetStringMultiLineBoundingBox(STR_BLACK_STRING, *size); *size = maxdim(d, *size); } } break; default: break; } } virtual void DrawWidget(const Rect &r, int widget) const { switch (widget) { case BAIRW_AIRPORT_LIST: { int y = r.top; for (uint i = this->vscroll->GetPosition(); this->vscroll->IsVisible(i) && i < AirportClass::GetCount(_selected_airport_class); i++) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, i); if (!as->IsAvailable()) { GfxFillRect(r.left + 1, y + 1, r.right - 1, y + this->line_height - 2, 0, FILLRECT_CHECKER); } DrawString(r.left + WD_MATRIX_LEFT, r.right + WD_MATRIX_RIGHT, y + WD_MATRIX_TOP, as->name, ((int)i == _selected_airport_index) ? TC_WHITE : TC_BLACK); y += this->line_height; } break; } case BAIRW_AIRPORT_SPRITE: if (this->preview_sprite != 0) { Dimension d = GetSpriteSize(this->preview_sprite); DrawSprite(this->preview_sprite, COMPANY_SPRITE_COLOUR(_local_company), (r.left + r.right - d.width) / 2, (r.top + r.bottom - d.height) / 2); } break; case BAIRW_EXTRA_TEXT: if (_selected_airport_index != -1) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, _selected_airport_index); StringID string = GetAirportTextCallback(as, _selected_airport_layout, CBID_AIRPORT_ADDITIONAL_TEXT); if (string != STR_UNDEFINED) { SetDParam(0, string); DrawStringMultiLine(r.left, r.right, r.top, r.bottom, STR_BLACK_STRING); } } break; } } virtual void OnPaint() { this->DrawWidgets(); uint16 top = this->GetWidget<NWidgetBase>(BAIRW_BTN_DOHILIGHT)->pos_y + this->GetWidget<NWidgetBase>(BAIRW_BTN_DOHILIGHT)->current_y + WD_PAR_VSEP_NORMAL; NWidgetBase *panel_nwi = this->GetWidget<NWidgetBase>(BAIRW_BOTTOMPANEL); int right = panel_nwi->pos_x + panel_nwi->current_x; int bottom = panel_nwi->pos_y + panel_nwi->current_y; if (_selected_airport_index != -1) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, _selected_airport_index); int rad = _settings_game.station.modified_catchment ? as->catchment : (uint)CA_UNMODIFIED; /* only show the station (airport) noise, if the noise option is activated */ if (_settings_game.economy.station_noise_level) { /* show the noise of the selected airport */ SetDParam(0, as->noise_level); DrawString(panel_nwi->pos_x + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, top, STR_STATION_BUILD_NOISE); top += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL; } /* strings such as 'Size' and 'Coverage Area' */ top = DrawStationCoverageAreaText(panel_nwi->pos_x + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, top, SCT_ALL, rad, false) + WD_PAR_VSEP_NORMAL; top = DrawStationCoverageAreaText(panel_nwi->pos_x + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, top, SCT_ALL, rad, true) + WD_PAR_VSEP_NORMAL; } /* Resize background if the text is not equally long as the window. */ if (top > bottom || (top < bottom && panel_nwi->current_y > panel_nwi->smallest_y)) { ResizeWindow(this, 0, top - bottom); } } void SelectOtherAirport(int airport_index) { _selected_airport_index = airport_index; _selected_airport_layout = 0; if (_selected_airport_index != -1) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, _selected_airport_index); this->preview_sprite = GetCustomAirportSprite(as, _selected_airport_layout); } this->UpdateSelectSize(); this->SetDirty(); } void UpdateSelectSize() { if (_selected_airport_index == -1) { SetTileSelectSize(1, 1); this->DisableWidget(BAIRW_LAYOUT_DECREASE); this->DisableWidget(BAIRW_LAYOUT_INCREASE); } else { const AirportSpec *as = AirportClass::Get(_selected_airport_class, _selected_airport_index); int w = as->size_x; int h = as->size_y; Direction rotation = as->rotation[_selected_airport_layout]; if (rotation == DIR_E || rotation == DIR_W) Swap(w, h); SetTileSelectSize(w, h); this->SetWidgetDisabledState(BAIRW_LAYOUT_DECREASE, _selected_airport_layout == 0); this->SetWidgetDisabledState(BAIRW_LAYOUT_INCREASE, _selected_airport_layout + 1 >= as->num_table); int rad = _settings_game.station.modified_catchment ? as->catchment : (uint)CA_UNMODIFIED; if (_settings_client.gui.station_show_coverage) SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad); } } virtual void OnClick(Point pt, int widget, int click_count) { switch (widget) { case BAIRW_CLASS_DROPDOWN: ShowDropDownList(this, BuildAirportClassDropDown(), _selected_airport_class, BAIRW_CLASS_DROPDOWN); break; case BAIRW_AIRPORT_LIST: { int num_clicked = this->vscroll->GetPosition() + (pt.y - this->nested_array[widget]->pos_y) / this->line_height; if (num_clicked >= this->vscroll->GetCount()) break; const AirportSpec *as = AirportClass::Get(_selected_airport_class, num_clicked); if (as->IsAvailable()) this->SelectOtherAirport(num_clicked); break; } case BAIRW_BTN_DONTHILIGHT: case BAIRW_BTN_DOHILIGHT: _settings_client.gui.station_show_coverage = (widget != BAIRW_BTN_DONTHILIGHT); this->SetWidgetLoweredState(BAIRW_BTN_DONTHILIGHT, !_settings_client.gui.station_show_coverage); this->SetWidgetLoweredState(BAIRW_BTN_DOHILIGHT, _settings_client.gui.station_show_coverage); this->SetDirty(); SndPlayFx(SND_15_BEEP); this->UpdateSelectSize(); break; case BAIRW_LAYOUT_DECREASE: _selected_airport_layout--; this->UpdateSelectSize(); this->SetDirty(); break; case BAIRW_LAYOUT_INCREASE: _selected_airport_layout++; this->UpdateSelectSize(); this->SetDirty(); break; } } /** * Select the first available airport. * @param change_class If true, change the class if no airport in the current * class is available. */ void SelectFirstAvailableAirport(bool change_class) { /* First try to select an airport in the selected class. */ for (uint i = 0; i < AirportClass::GetCount(_selected_airport_class); i++) { const AirportSpec *as = AirportClass::Get(_selected_airport_class, i); if (as->IsAvailable()) { this->SelectOtherAirport(i); return; } } if (change_class) { /* If that fails, select the first available airport * from a random class. */ for (AirportClassID j = APC_BEGIN; j < APC_MAX; j++) { for (uint i = 0; i < AirportClass::GetCount(j); i++) { const AirportSpec *as = AirportClass::Get(j, i); if (as->IsAvailable()) { _selected_airport_class = j; this->SelectOtherAirport(i); return; } } } } /* If all airports are unavailable, select nothing. */ this->SelectOtherAirport(-1); } virtual void OnDropdownSelect(int widget, int index) { assert(widget == BAIRW_CLASS_DROPDOWN); _selected_airport_class = (AirportClassID)index; this->vscroll->SetCount(AirportClass::GetCount(_selected_airport_class)); this->SelectFirstAvailableAirport(false); } virtual void OnTick() { CheckRedrawStationCoverage(this); } }; static const NWidgetPart _nested_build_airport_widgets[] = { NWidget(NWID_HORIZONTAL), NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN), NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_AIRPORT_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), EndContainer(), NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetFill(1, 0), SetPIP(2, 0, 2), NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_AIRPORT_CLASS_LABEL, STR_NULL), SetFill(1, 0), NWidget(WWT_DROPDOWN, COLOUR_GREY, BAIRW_CLASS_DROPDOWN), SetFill(1, 0), SetDataTip(STR_BLACK_STRING, STR_NULL), NWidget(NWID_HORIZONTAL), NWidget(WWT_MATRIX, COLOUR_GREY, BAIRW_AIRPORT_LIST), SetFill(1, 0), SetDataTip(0x501, STR_NULL), SetScrollbar(BAIRW_SCROLLBAR), NWidget(NWID_VSCROLLBAR, COLOUR_GREY, BAIRW_SCROLLBAR), EndContainer(), NWidget(NWID_HORIZONTAL), NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, BAIRW_LAYOUT_DECREASE), SetMinimalSize(12, 0),SetDataTip(AWV_DECREASE, STR_NULL), NWidget(WWT_LABEL, COLOUR_GREY, BAIRW_LAYOUT_NUM), SetResize(1, 0), SetFill(1, 0), SetDataTip(STR_BLACK_STRING, STR_NULL), NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, BAIRW_LAYOUT_INCREASE), SetMinimalSize(12, 0), SetDataTip(AWV_INCREASE, STR_NULL), EndContainer(), NWidget(WWT_EMPTY, COLOUR_DARK_GREEN, BAIRW_AIRPORT_SPRITE), SetFill(1, 0), NWidget(WWT_EMPTY, COLOUR_DARK_GREEN, BAIRW_EXTRA_TEXT), SetFill(1, 0), SetMinimalSize(150, 0), EndContainer(), /* Bottom panel. */ NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BAIRW_BOTTOMPANEL), SetPIP(2, 2, 2), NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL), SetFill(1, 0), NWidget(NWID_HORIZONTAL), NWidget(NWID_SPACER), SetMinimalSize(14, 0), SetFill(1, 0), NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), NWidget(WWT_TEXTBTN, COLOUR_GREY, BAIRW_BTN_DONTHILIGHT), SetMinimalSize(60, 12), SetFill(1, 0), SetDataTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP), NWidget(WWT_TEXTBTN, COLOUR_GREY, BAIRW_BTN_DOHILIGHT), SetMinimalSize(60, 12), SetFill(1, 0), SetDataTip(STR_STATION_BUILD_COVERAGE_ON, STR_STATION_BUILD_COVERAGE_AREA_ON_TOOLTIP), EndContainer(), NWidget(NWID_SPACER), SetMinimalSize(14, 0), SetFill(1, 0), EndContainer(), NWidget(NWID_SPACER), SetMinimalSize(0, 10), SetResize(0, 1), SetFill(1, 0), EndContainer(), }; static const WindowDesc _build_airport_desc( WDP_AUTO, 0, 0, WC_BUILD_STATION, WC_BUILD_TOOLBAR, WDF_CONSTRUCTION, _nested_build_airport_widgets, lengthof(_nested_build_airport_widgets) ); static void ShowBuildAirportPicker(Window *parent) { new BuildAirportWindow(&_build_airport_desc, parent); } void InitializeAirportGui() { _selected_airport_class = APC_BEGIN; }