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Make final adjustments and cleanup

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pull/287/head
Andreas Schmitt 3 years ago
parent 58c00d169e
commit 081131c298
1 changed files with 94 additions and 86 deletions
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180
src/build_vehicle_gui.cpp
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@ -2231,7 +2231,7 @@ struct BuildVehicleWindow : Window {
};
/** Advanced window for trains. It is divided into two parts, one for locomotives and one for wagons. */
struct BuildVehicleWindowTrainAdvanced : Window {
struct BuildVehicleWindowTrainAdvanced final : Window {
/* Locomotives and wagons */
@ -2242,38 +2242,38 @@ struct BuildVehicleWindowTrainAdvanced : Window {
/* Locomotives */
bool descending_sort_order_loco; ///< Sort direction, @see _engine_sort_direction
byte sort_criteria_loco; ///< Current sort criterium for locomotives.
EngineID sel_engine_loco; ///< Currently selected engine, or #INVALID_ENGINE
EngineID rename_engine_loco; ///< Engine being renamed.
bool descending_sort_order_loco; ///< Sort direction, @see _engine_sort_direction
byte sort_criteria_loco; ///< Current sort criterium for locomotives.
EngineID sel_engine_loco; ///< Currently selected engine, or #INVALID_ENGINE
EngineID rename_engine_loco {}; ///< Engine being renamed.
GUIEngineList eng_list_loco;
Scrollbar *vscroll_loco;
byte cargo_filter_criteria_loco; ///< Selected cargo filter
bool show_hidden_locos; ///< State of the 'show hidden locomotives' button.
int details_height_loco; ///< Minimal needed height of the details panels (found so far).
CargoID cargo_filter_loco[NUM_CARGO + 2]; ///< Available cargo filters; CargoID or CF_ANY or CF_NONE
StringID cargo_filter_texts_loco[NUM_CARGO + 3]; ///< Texts for filter_cargo, terminated by INVALID_STRING_ID
byte cargo_filter_criteria_loco {}; ///< Selected cargo filter
bool show_hidden_locos; ///< State of the 'show hidden locomotives' button.
int details_height_loco; ///< Minimal needed height of the details panels (found so far).
CargoID cargo_filter_loco[NUM_CARGO + 2] {}; ///< Available cargo filters; CargoID or CF_ANY or CF_NONE
StringID cargo_filter_texts_loco[NUM_CARGO + 3] {}; ///< Texts for filter_cargo, terminated by INVALID_STRING_ID
/* Wagons */
bool descending_sort_order_wagon; ///< Sort direction, @see _engine_sort_direction
byte sort_criteria_wagon; ///< Current sort criterium for wagons.
EngineID sel_engine_wagon; ///< Currently selected engine, or #INVALID_ENGINE
EngineID rename_engine_wagon; ///< Engine being renamed.
bool descending_sort_order_wagon; ///< Sort direction, @see _engine_sort_direction
byte sort_criteria_wagon; ///< Current sort criterion for wagons.
EngineID sel_engine_wagon; ///< Currently selected engine, or #INVALID_ENGINE
EngineID rename_engine_wagon {}; ///< Engine being renamed.
GUIEngineList eng_list_wagon;
Scrollbar *vscroll_wagon;
byte cargo_filter_criteria_wagon; ///< Selected cargo filter
bool show_hidden_wagons; ///< State of the 'show hidden wagons' button.
int details_height_wagon; ///< Minimal needed height of the details panels (found so far).
CargoID cargo_filter_wagon[NUM_CARGO + 2]; ///< Available cargo filters; CargoID or CF_ANY or CF_NONE
StringID cargo_filter_texts_wagon[NUM_CARGO + 3]; ///< Texts for filter_cargo, terminated by INVALID_STRING_ID
byte cargo_filter_criteria_wagon {}; ///< Selected cargo filter
bool show_hidden_wagons; ///< State of the 'show hidden wagons' button.
int details_height_wagon; ///< Minimal needed height of the details panels (found so far).
CargoID cargo_filter_wagon[NUM_CARGO + 2] {}; ///< Available cargo filters; CargoID or CF_ANY or CF_NONE
StringID cargo_filter_texts_wagon[NUM_CARGO + 3] {}; ///< Texts for filter_cargo, terminated by INVALID_STRING_ID
bool virtual_train_mode; ///< Are we building a virtual train?
Train **virtual_train_out; ///< Virtual train ptr
bool virtual_train_mode; ///< Are we building a virtual train?
Train **virtual_train_out; ///< Virtual train ptr
TestedEngineDetails te; ///< Tested cost and capacity after refit.
TestedEngineDetails te; ///< Tested cost and capacity after refit.
void SetBuyLocomotiveText()
{
@ -2320,7 +2320,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
BuildVehicleWindowTrainAdvanced(WindowDesc *desc, TileIndex tile, Train **virtual_train_out) : Window(desc)
{
this->vehicle_type = VEH_TRAIN;
this->window_number = tile == INVALID_TILE ? (int)VEH_TRAIN : tile;
this->window_number = tile == INVALID_TILE ? static_cast<int>(VEH_TRAIN) : tile;
this->virtual_train_out = virtual_train_out;
this->virtual_train_mode = (virtual_train_out != nullptr);
@ -2353,7 +2353,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
/* Locomotives */
NWidgetCore *widget_loco = this->GetWidget<NWidgetCore>(WID_BV_LIST_LOCO);
auto widget_loco = this->GetWidget<NWidgetCore>(WID_BV_LIST_LOCO);
widget_loco->tool_tip = STR_BUY_VEHICLE_TRAIN_LIST_TOOLTIP + VEH_TRAIN;
widget_loco = this->GetWidget<NWidgetCore>(WID_BV_SHOW_HIDE_LOCO);
@ -2370,7 +2370,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
/* Wagons */
NWidgetCore *widget_wagon = this->GetWidget<NWidgetCore>(WID_BV_LIST_WAGON);
auto widget_wagon = this->GetWidget<NWidgetCore>(WID_BV_LIST_WAGON);
widget_wagon->tool_tip = STR_BUY_VEHICLE_TRAIN_LIST_TOOLTIP + VEH_TRAIN;
widget_wagon = this->GetWidget<NWidgetCore>(WID_BV_SHOW_HIDE_WAGON);
@ -2475,7 +2475,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
filter_items_wagon++;
/* Add item for vehicles not carrying anything, e.g. train engines.
* This could also be useful for eyecandy vehicles of other types, but is likely too confusing for joe, */
* This could also be useful for eye candy vehicles of other types, but is likely too confusing for joe, */
this->cargo_filter_wagon[filter_items_wagon] = CF_NONE;
this->cargo_filter_texts_wagon[filter_items_wagon] = STR_PURCHASE_INFO_NONE;
@ -2544,18 +2544,18 @@ struct BuildVehicleWindowTrainAdvanced : Window {
this->te.cargo = e->GetDefaultCargoType();
}
void SelectWagon(const EngineID engine)
void SelectWagon(const EngineID eid)
{
CargoID cargo = this->cargo_filter_wagon[this->cargo_filter_criteria_wagon];
if (cargo == CF_ANY) cargo = CF_NONE;
this->sel_engine_wagon = engine;
this->sel_engine_wagon = eid;
this->SetBuyWagonText();
if (this->sel_engine_wagon == INVALID_ENGINE) return;
const Engine *e = Engine::Get(this->sel_engine_wagon);
if (!e->CanCarryCargo()) {
const Engine *engine = Engine::Get(this->sel_engine_wagon);
if (!engine->CanCarryCargo()) {
this->te.cost = 0;
this->te.cargo = CT_INVALID;
return;
@ -2565,18 +2565,18 @@ struct BuildVehicleWindowTrainAdvanced : Window {
/* Query for cost and refitted capacity */
const CommandCost ret = DoCommand(this->window_number, this->sel_engine_wagon | (cargo << 24), 0, DC_QUERY_COST, GetCmdBuildVeh(this->vehicle_type), nullptr);
if (ret.Succeeded()) {
this->te.cost = ret.GetCost() - e->GetCost();
this->te.cost = ret.GetCost() - engine->GetCost();
this->te.capacity = _returned_refit_capacity;
this->te.mail_capacity = _returned_mail_refit_capacity;
this->te.cargo = (cargo == CT_INVALID) ? e->GetDefaultCargoType() : cargo;
this->te.cargo = (cargo == CT_INVALID) ? engine->GetDefaultCargoType() : cargo;
return;
}
}
/* Purchase test was not possible or failed, fill in the defaults instead. */
this->te.cost = 0;
this->te.capacity = e->GetDisplayDefaultCapacity(&this->te.mail_capacity);
this->te.cargo = e->GetDefaultCargoType();
this->te.capacity = engine->GetDisplayDefaultCapacity(&this->te.mail_capacity);
this->te.cargo = engine->GetDefaultCargoType();
}
void OnInit() override
@ -2636,10 +2636,10 @@ struct BuildVehicleWindowTrainAdvanced : Window {
* Also check to see if the previously selected engine is still available,
* and if not, reset selection to INVALID_ENGINE. This could be the case
* when engines become obsolete and are removed */
for (const Engine *e : Engine::IterateType(VEH_TRAIN)) {
if (!this->show_hidden_locos && e->IsHidden(_local_company)) continue;
EngineID eid = e->index;
const RailVehicleInfo *rvi = &e->u.rail;
for (const Engine *engine : Engine::IterateType(VEH_TRAIN)) {
if (!this->show_hidden_locos && engine->IsHidden(_local_company)) continue;
EngineID eid = engine->index;
const RailVehicleInfo *rvi = &engine->u.rail;
if (this->railtype != RAILTYPE_END && !HasPowerOnRail(rvi->railtype, this->railtype)) continue;
if (!IsEngineBuildable(eid, VEH_TRAIN, _local_company)) continue;
@ -2670,10 +2670,10 @@ struct BuildVehicleWindowTrainAdvanced : Window {
* Also check to see if the previously selected engine is still available,
* and if not, reset selection to INVALID_ENGINE. This could be the case
* when engines become obsolete and are removed */
for (const Engine *e : Engine::IterateType(VEH_TRAIN)) {
if (!this->show_hidden_wagons && e->IsHidden(_local_company)) continue;
EngineID eid = e->index;
const RailVehicleInfo *rvi = &e->u.rail;
for (const Engine *engine : Engine::IterateType(VEH_TRAIN)) {
if (!this->show_hidden_wagons && engine->IsHidden(_local_company)) continue;
EngineID eid = engine->index;
const RailVehicleInfo *rvi = &engine->u.rail;
if (this->railtype != RAILTYPE_END && !HasPowerOnRail(rvi->railtype, this->railtype)) continue;
if (!IsEngineBuildable(eid, VEH_TRAIN, _local_company)) continue;
@ -2721,7 +2721,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
this->eng_list_wagon.RebuildDone();
}
void OnClick(Point pt, int widget, int click_count)
void OnClick(Point pt, int widget, int click_count) override
{
switch (widget) {
@ -2898,7 +2898,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
* @param data Information about the changed data.
* @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
*/
virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
void OnInvalidateData(int data = 0, bool gui_scope = true) override
{
if (!gui_scope) return;
@ -2907,11 +2907,11 @@ struct BuildVehicleWindowTrainAdvanced : Window {
this->eng_list_wagon.ForceRebuild();
}
virtual void SetStringParameters(int widget) const
void SetStringParameters(int widget) const override
{
switch (widget) {
case WID_BV_CAPTION: {
if (this->vehicle_type == VEH_TRAIN && !this->listview_mode && !this->virtual_train_mode) {
if (!this->listview_mode && !this->virtual_train_mode) {
const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
SetDParam(0, rti->strings.build_caption);
} else {
@ -2926,8 +2926,8 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
case WID_BV_SHOW_HIDE_LOCO: {
const Engine *e = (this->sel_engine_loco == INVALID_ENGINE) ? nullptr : Engine::GetIfValid(this->sel_engine_loco);
if (e != nullptr && e->IsHidden(_local_company)) {
const Engine *engine = (this->sel_engine_loco == INVALID_ENGINE) ? nullptr : Engine::GetIfValid(this->sel_engine_loco);
if (engine != nullptr && engine->IsHidden(_local_company)) {
SetDParam(0, STR_BUY_VEHICLE_TRAIN_SHOW_TOGGLE_BUTTON + this->vehicle_type);
}
else {
@ -2962,8 +2962,8 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
case WID_BV_SHOW_HIDE_WAGON: {
const Engine *e = (this->sel_engine_wagon == INVALID_ENGINE) ? nullptr : Engine::GetIfValid(this->sel_engine_wagon);
if (e != nullptr && e->IsHidden(_local_company)) {
const Engine *engine = (this->sel_engine_wagon == INVALID_ENGINE) ? nullptr : Engine::GetIfValid(this->sel_engine_wagon);
if (engine != nullptr && engine->IsHidden(_local_company)) {
SetDParam(0, STR_BUY_VEHICLE_TRAIN_SHOW_TOGGLE_BUTTON + this->vehicle_type);
}
else {
@ -2974,7 +2974,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
}
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
{
switch (widget) {
case WID_BV_LIST_LOCO: {
@ -3015,14 +3015,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
break;
}
case WID_BV_SHOW_HIDE_LOCO: {
*size = GetStringBoundingBox(STR_BUY_VEHICLE_TRAIN_HIDE_TOGGLE_BUTTON + this->vehicle_type);
*size = maxdim(*size, GetStringBoundingBox(STR_BUY_VEHICLE_TRAIN_SHOW_TOGGLE_BUTTON + this->vehicle_type));
size->width += padding.width;
size->height += padding.height;
break;
}
case WID_BV_SHOW_HIDE_LOCO: // Fallthrough
case WID_BV_SHOW_HIDE_WAGON: {
*size = GetStringBoundingBox(STR_BUY_VEHICLE_TRAIN_HIDE_TOGGLE_BUTTON + this->vehicle_type);
*size = maxdim(*size, GetStringBoundingBox(STR_BUY_VEHICLE_TRAIN_SHOW_TOGGLE_BUTTON + this->vehicle_type));
@ -3033,11 +3026,15 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
}
virtual void DrawWidget(const Rect &r, int widget) const
void DrawWidget(const Rect &r, int widget) const override
{
switch (widget) {
case WID_BV_LIST_LOCO: {
DrawEngineList(this->vehicle_type, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, &this->eng_list_loco, this->vscroll_loco->GetPosition(), std::min<uint16>(this->vscroll_loco->GetPosition() + this->vscroll_loco->GetCapacity(), this->eng_list_loco.size()), this->sel_engine_loco, false, DEFAULT_GROUP);
DrawEngineList(this->vehicle_type, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT,
r.top + WD_FRAMERECT_TOP, &this->eng_list_loco, this->vscroll_loco->GetPosition(),
std::min<uint16>(this->vscroll_loco->GetPosition() + this->vscroll_loco->GetCapacity(),
static_cast<uint16>(this->eng_list_loco.size())), this->sel_engine_loco, false,
DEFAULT_GROUP);
break;
}
@ -3047,7 +3044,11 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
case WID_BV_LIST_WAGON: {
DrawEngineList(this->vehicle_type, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, &this->eng_list_wagon, this->vscroll_wagon->GetPosition(), std::min<uint16>(this->vscroll_wagon->GetPosition() + this->vscroll_wagon->GetCapacity(), this->eng_list_wagon.size()), this->sel_engine_wagon, false, DEFAULT_GROUP);
DrawEngineList(this->vehicle_type, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT,
r.top + WD_FRAMERECT_TOP, &this->eng_list_wagon, this->vscroll_wagon->GetPosition(),
std::min<uint16>(this->vscroll_wagon->GetPosition() + this->vscroll_wagon->GetCapacity(),
static_cast<uint16>(this->eng_list_wagon.size())), this->sel_engine_wagon, false,
DEFAULT_GROUP);
break;
}
@ -3058,11 +3059,11 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
}
virtual void OnPaint()
void OnPaint() override
{
this->GenerateBuildList();
this->vscroll_loco->SetCount(this->eng_list_loco.size());
this->vscroll_wagon->SetCount(this->eng_list_wagon.size());
this->vscroll_loco->SetCount(static_cast<int>(this->eng_list_loco.size()));
this->vscroll_wagon->SetCount(static_cast<int>(this->eng_list_wagon.size()));
this->SetWidgetDisabledState(WID_BV_SHOW_HIDE_LOCO, this->sel_engine_loco == INVALID_ENGINE);
this->SetWidgetDisabledState(WID_BV_SHOW_HIDE_WAGON, this->sel_engine_wagon == INVALID_ENGINE);
@ -3081,13 +3082,16 @@ struct BuildVehicleWindowTrainAdvanced : Window {
int needed_height_loco = this->details_height_loco;
/* Draw details panels. */
if (this->sel_engine_loco != INVALID_ENGINE) {
NWidgetBase *nwi = this->GetWidget<NWidgetBase>(WID_BV_PANEL_LOCO);
int text_end = DrawVehiclePurchaseInfo(nwi->pos_x + WD_FRAMETEXT_LEFT, nwi->pos_x + nwi->current_x - WD_FRAMETEXT_RIGHT,
nwi->pos_y + WD_FRAMERECT_TOP, this->sel_engine_loco, this->te);
needed_height_loco = std::max(needed_height_loco, text_end - (int)nwi->pos_y + WD_FRAMERECT_BOTTOM);
const auto widget = this->GetWidget<NWidgetBase>(WID_BV_PANEL_LOCO);
const int text_end = DrawVehiclePurchaseInfo(widget->pos_x + WD_FRAMETEXT_LEFT,
static_cast<int>(
widget->pos_x + widget->current_x -
WD_FRAMETEXT_RIGHT), widget->pos_y + WD_FRAMERECT_TOP,
this->sel_engine_loco, this->te);
needed_height_loco = std::max(needed_height_loco, text_end - widget->pos_y + WD_FRAMERECT_BOTTOM);
}
if (needed_height_loco != this->details_height_loco) { // Details window are not high enough, enlarge them.
int resize = needed_height_loco - this->details_height_loco;
const int resize = needed_height_loco - this->details_height_loco;
this->details_height_loco = needed_height_loco;
this->ReInit(0, resize);
return;
@ -3095,13 +3099,16 @@ struct BuildVehicleWindowTrainAdvanced : Window {
int needed_height_wagon = this->details_height_wagon;
if (this->sel_engine_wagon != INVALID_ENGINE) {
NWidgetBase *nwi = this->GetWidget<NWidgetBase>(WID_BV_PANEL_WAGON);
int text_end = DrawVehiclePurchaseInfo(nwi->pos_x + WD_FRAMETEXT_LEFT, nwi->pos_x + nwi->current_x - WD_FRAMETEXT_RIGHT,
nwi->pos_y + WD_FRAMERECT_TOP, this->sel_engine_wagon, this->te);
needed_height_wagon = std::max(needed_height_wagon, text_end - (int)nwi->pos_y + WD_FRAMERECT_BOTTOM);
const auto widget = this->GetWidget<NWidgetBase>(WID_BV_PANEL_WAGON);
const int text_end = DrawVehiclePurchaseInfo(widget->pos_x + WD_FRAMETEXT_LEFT,
static_cast<int>(
widget->pos_x + widget->current_x -
WD_FRAMETEXT_RIGHT), widget->pos_y + WD_FRAMERECT_TOP,
this->sel_engine_wagon, this->te);
needed_height_wagon = std::max(needed_height_wagon, text_end - widget->pos_y + WD_FRAMERECT_BOTTOM);
}
if (needed_height_wagon != this->details_height_wagon) { // Details window are not high enough, enlarge them.
int resize = needed_height_wagon - this->details_height_wagon;
const int resize = needed_height_wagon - this->details_height_wagon;
this->details_height_wagon = needed_height_wagon;
this->ReInit(0, resize);
return;
@ -3109,9 +3116,10 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
}
virtual void OnQueryTextFinished(char *str)
void OnQueryTextFinished(char *str) override
{
if (str == nullptr) return;
if(this->rename_engine_loco != INVALID_ENGINE)
{
DoCommandP(0, this->rename_engine_loco, 0, CMD_RENAME_ENGINE | CMD_MSG(STR_ERROR_CAN_T_RENAME_TRAIN_TYPE + this->vehicle_type), nullptr, str);
@ -3122,12 +3130,12 @@ struct BuildVehicleWindowTrainAdvanced : Window {
}
}
virtual void OnDropdownSelect(int widget, int index)
void OnDropdownSelect(int widget, int index) override
{
switch (widget) {
case WID_BV_SORT_DROPDOWN_LOCO: {
if (this->sort_criteria_loco != index) {
this->sort_criteria_loco = index;
this->sort_criteria_loco = static_cast<byte>(index);
_last_sort_criteria_loco = this->sort_criteria_loco;
this->eng_list_loco.ForceRebuild();
}
@ -3136,7 +3144,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
case WID_BV_CARGO_FILTER_DROPDOWN_LOCO: { // Select a cargo filter criteria
if (this->cargo_filter_criteria_loco != index) {
this->cargo_filter_criteria_loco = index;
this->cargo_filter_criteria_loco = static_cast<byte>(index);
_last_filter_criteria_loco = this->cargo_filter_loco[this->cargo_filter_criteria_loco];
/* deactivate filter if criteria is 'Show All', activate it otherwise */
this->eng_list_loco.SetFilterState(this->cargo_filter_loco[this->cargo_filter_criteria_loco] != CF_ANY);
@ -3147,7 +3155,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
case WID_BV_SORT_DROPDOWN_WAGON: {
if (this->sort_criteria_wagon != index) {
this->sort_criteria_wagon = index;
this->sort_criteria_wagon = static_cast<byte>(index);
_last_sort_criteria_wagon = this->sort_criteria_wagon;
this->eng_list_wagon.ForceRebuild();
}
@ -3156,7 +3164,7 @@ struct BuildVehicleWindowTrainAdvanced : Window {
case WID_BV_CARGO_FILTER_DROPDOWN_WAGON: { // Select a cargo filter criteria
if (this->cargo_filter_criteria_wagon != index) {
this->cargo_filter_criteria_wagon = index;
this->cargo_filter_criteria_wagon = static_cast<byte>(index);
_last_filter_criteria_wagon = this->cargo_filter_wagon[this->cargo_filter_criteria_wagon];
/* deactivate filter if criteria is 'Show All', activate it otherwise */
this->eng_list_wagon.SetFilterState(this->cargo_filter_wagon[this->cargo_filter_criteria_wagon] != CF_ANY);
@ -3169,22 +3177,22 @@ struct BuildVehicleWindowTrainAdvanced : Window {
this->SetDirty();
}
virtual void OnResize()
void OnResize() override
{
this->vscroll_loco->SetCapacityFromWidget(this, WID_BV_LIST_LOCO);
this->vscroll_wagon->SetCapacityFromWidget(this, WID_BV_LIST_WAGON);
}
void AddVirtualEngine(Train *toadd)
void AddVirtualEngine(Train *to_add) const
{
if (this->virtual_train_out == nullptr) return;
if (*(this->virtual_train_out) == nullptr) {
*(this->virtual_train_out) = toadd;
*(this->virtual_train_out) = to_add;
} else {
VehicleID target = (*(this->virtual_train_out))->GetLastUnit()->index;
const VehicleID target = (*(this->virtual_train_out))->GetLastUnit()->index;
DoCommandP(0, (1 << 21) | toadd->index, target, CMD_MOVE_RAIL_VEHICLE);
DoCommandP(0, (1 << 21) | to_add->index, target, CMD_MOVE_RAIL_VEHICLE);
}
InvalidateWindowClassesData(WC_CREATE_TEMPLATE);
InvalidateWindowClassesData(WC_TEMPLATEGUI_MAIN);

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