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(svn r17859) -Codechange: make the fund/build/prospect industry window nested

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pull/155/head
rubidium 15 years ago
parent 3a470a37cf
commit 5be6edc6e3
1 changed files with 192 additions and 131 deletions
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323
src/industry_gui.cpp
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@ -106,31 +106,19 @@ enum DynamicPlaceIndustriesWidgets {
DPIW_RESIZE_WIDGET,
};
/** Widget definition of the dynamic place industries gui */
static const Widget _build_industry_widgets[] = {
{ WWT_CLOSEBOX, RESIZE_NONE, COLOUR_DARK_GREEN, 0, 10, 0, 13, STR_BLACK_CROSS, STR_TOOLTIP_CLOSE_WINDOW}, // DPIW_CLOSEBOX
{ WWT_CAPTION, RESIZE_RIGHT, COLOUR_DARK_GREEN, 11, 169, 0, 13, STR_FUND_INDUSTRY_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS}, // DPIW_CAPTION
{ WWT_MATRIX, RESIZE_RB, COLOUR_DARK_GREEN, 0, 157, 14, 118, 0x801, STR_FUND_INDUSTRY_SELECTION_TOOLTIP}, // DPIW_MATRIX_WIDGET
{ WWT_SCROLLBAR, RESIZE_LRB, COLOUR_DARK_GREEN, 158, 169, 14, 118, 0x0, STR_TOOLTIP_VSCROLL_BAR_SCROLLS_LIST}, // DPIW_SCROLLBAR
{ WWT_PANEL, RESIZE_RTB, COLOUR_DARK_GREEN, 0, 169, 119, 199, 0x0, STR_NULL}, // DPIW_INFOPANEL
{ WWT_TEXTBTN, RESIZE_RTB, COLOUR_DARK_GREEN, 0, 157, 200, 211, STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY, STR_NULL}, // DPIW_FUND_WIDGET
{ WWT_RESIZEBOX, RESIZE_LRTB, COLOUR_DARK_GREEN, 158, 169, 200, 211, 0x0, STR_TOOLTIP_RESIZE}, // DPIW_RESIZE_WIDGET
{ WIDGETS_END},
};
static const NWidgetPart _nested_build_industry_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN, DPIW_CLOSEBOX),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, DPIW_CAPTION), SetMinimalSize(159, 14), SetDataTip(STR_FUND_INDUSTRY_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetResize(1, 0),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, DPIW_CAPTION), SetDataTip(STR_FUND_INDUSTRY_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetResize(1, 0),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_MATRIX, COLOUR_DARK_GREEN, DPIW_MATRIX_WIDGET), SetMinimalSize(158, 105), SetDataTip(0x801, STR_FUND_INDUSTRY_SELECTION_TOOLTIP), SetResize(1, 1),
NWidget(WWT_MATRIX, COLOUR_DARK_GREEN, DPIW_MATRIX_WIDGET), SetDataTip(0x801, STR_FUND_INDUSTRY_SELECTION_TOOLTIP), SetResize(1, 1),
NWidget(WWT_SCROLLBAR, COLOUR_DARK_GREEN, DPIW_SCROLLBAR), SetResize(0, 1),
EndContainer(),
NWidget(WWT_PANEL, COLOUR_DARK_GREEN, DPIW_INFOPANEL), SetMinimalSize(170, 81), SetResize(1, 0),
NWidget(WWT_PANEL, COLOUR_DARK_GREEN, DPIW_INFOPANEL), SetResize(1, 0),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_TEXTBTN, COLOUR_DARK_GREEN, DPIW_FUND_WIDGET), SetMinimalSize(158, 12), SetResize(1, 0), SetDataTip(STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY, STR_NULL),
NWidget(WWT_TEXTBTN, COLOUR_DARK_GREEN, DPIW_FUND_WIDGET), SetResize(1, 0), SetDataTip(STR_JUST_STRING, STR_NULL),
NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN, DPIW_RESIZE_WIDGET),
EndContainer(),
};
@ -140,7 +128,7 @@ static const WindowDesc _build_industry_desc(
WDP_AUTO, WDP_AUTO, 170, 212, 170, 212,
WC_BUILD_INDUSTRY, WC_NONE,
WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_RESIZABLE | WDF_CONSTRUCTION,
_build_industry_widgets, _nested_build_industry_widgets, lengthof(_nested_build_industry_widgets)
NULL, _nested_build_industry_widgets, lengthof(_nested_build_industry_widgets)
);
/** Build (fund or prospect) a new industry, */
@ -151,16 +139,17 @@ class BuildIndustryWindow : public Window {
bool timer_enabled; ///< timer can be used
uint16 count; ///< How many industries are loaded
IndustryType index[NUM_INDUSTRYTYPES + 1]; ///< Type of industry, in the order it was loaded
StringID text[NUM_INDUSTRYTYPES + 1]; ///< Text coming from CBM_IND_FUND_MORE_TEXT (if ever)
bool enabled[NUM_INDUSTRYTYPES + 1]; ///< availability state, coming from CBID_INDUSTRY_AVAILABLE (if ever)
/** The offset for the text in the matrix. */
static const int MATRIX_TEXT_OFFSET = 17;
void SetupArrays()
{
this->count = 0;
for (uint i = 0; i < lengthof(this->index); i++) {
this->index[i] = INVALID_INDUSTRYTYPE;
this->text[i] = STR_NULL;
this->enabled[i] = false;
}
@ -198,28 +187,15 @@ class BuildIndustryWindow : public Window {
this->selected_index = 0;
this->selected_type = this->index[0];
}
this->vscroll.SetCount(this->count);
}
public:
BuildIndustryWindow() : Window(&_build_industry_desc)
BuildIndustryWindow() : Window()
{
/* Shorten the window to the equivalant of the additionnal purchase
* info coming from the callback. So it will only be available to its full
* height when newindistries are loaded */
if (!_loaded_newgrf_features.has_newindustries) {
this->widget[DPIW_INFOPANEL].bottom -= 44;
this->widget[DPIW_FUND_WIDGET].bottom -= 44;
this->widget[DPIW_FUND_WIDGET].top -= 44;
this->widget[DPIW_RESIZE_WIDGET].bottom -= 44;
this->widget[DPIW_RESIZE_WIDGET].top -= 44;
this->resize.height = this->height -= 44;
}
this->timer_enabled = _loaded_newgrf_features.has_newindustries;
this->vscroll.SetCapacity(8); // rows in grid, same in scroller
this->resize.step_height = 13;
this->selected_index = -1;
this->selected_type = INVALID_INDUSTRYTYPE;
@ -228,114 +204,193 @@ public:
this->callback_timer = DAY_TICKS;
this->FindWindowPlacementAndResize(&_build_industry_desc);
this->InitNested(&_build_industry_desc, 0);
}
virtual void OnPaint()
virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *resize)
{
const IndustrySpec *indsp = (this->selected_type == INVALID_INDUSTRYTYPE) ? NULL : GetIndustrySpec(this->selected_type);
int x_str = this->widget[DPIW_INFOPANEL].left + 3;
int y_str = this->widget[DPIW_INFOPANEL].top + 3;
const Widget *wi = &this->widget[DPIW_INFOPANEL];
int max_width = wi->right - wi->left - 4;
int right = wi->right - 1;
/* Raw industries might be prospected. Show this fact by changing the string
* In Editor, you just build, while ingame, or you fund or you prospect */
if (_game_mode == GM_EDITOR) {
/* We've chosen many random industries but no industries have been specified */
if (indsp == NULL) this->enabled[this->selected_index] = _settings_game.difficulty.number_industries != 0;
this->widget[DPIW_FUND_WIDGET].data = STR_FUND_INDUSTRY_BUILD_NEW_INDUSTRY;
} else {
this->widget[DPIW_FUND_WIDGET].data = (_settings_game.construction.raw_industry_construction == 2 && indsp->IsRawIndustry()) ? STR_FUND_INDUSTRY_PROSPECT_NEW_INDUSTRY : STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY;
}
this->SetWidgetDisabledState(DPIW_FUND_WIDGET, !this->enabled[this->selected_index]);
this->vscroll.SetCount(this->count);
switch (widget) {
case DPIW_MATRIX_WIDGET: {
Dimension d = GetStringBoundingBox(STR_FUND_INDUSTRY_MANY_RANDOM_INDUSTRIES);
for (byte i = 0; i < this->count; i++) {
if (this->index[i] == INVALID_INDUSTRYTYPE) continue;
d = maxdim(d, GetStringBoundingBox(GetIndustrySpec(this->index[i])->name));
}
resize->height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM;
d.width += MATRIX_TEXT_OFFSET + padding.width;
d.height = 5 * resize->height;
*size = maxdim(*size, d);
break;
}
this->DrawWidgets();
case DPIW_INFOPANEL: {
/* Extra line for cost outside of editor + extra lines for 'extra' information for NewGRFs. */
int height = 2 + (_game_mode == GM_EDITOR ? 0 : 1) + (_loaded_newgrf_features.has_newindustries ? 4 : 0);
Dimension d = {0, 0};
for (byte i = 0; i < this->count; i++) {
if (this->index[i] == INVALID_INDUSTRYTYPE) continue;
const IndustrySpec *indsp = GetIndustrySpec(this->index[i]);
char cargo_suffix[3][512];
GetAllCargoSuffixes(0, CST_FUND, NULL, this->selected_type, indsp, indsp->accepts_cargo, cargo_suffix);
StringID str = STR_INDUSTRY_VIEW_REQUIRES_CARGO;
byte p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->accepts_cargo); j++) {
if (indsp->accepts_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->accepts_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
d = maxdim(d, GetStringBoundingBox(str));
/* Draw the produced cargos, if any. Otherwhise, will print "Nothing" */
GetAllCargoSuffixes(3, CST_FUND, NULL, this->selected_type, indsp, indsp->produced_cargo, cargo_suffix);
str = STR_INDUSTRY_VIEW_PRODUCES_CARGO;
p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->produced_cargo); j++) {
if (indsp->produced_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->produced_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
d = maxdim(d, GetStringBoundingBox(str));
}
/* and now with the matrix painting */
for (byte i = 0; i < this->vscroll.GetCapacity() && ((i + this->vscroll.GetPosition()) < this->count); i++) {
int offset = i * 13;
int x = 3;
int y = 16;
bool selected = this->selected_index == i + this->vscroll.GetPosition();
/* Set it to something more sane :) */
size->height = height * FONT_HEIGHT_NORMAL + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
size->width = d.width + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
} break;
if (this->index[i + this->vscroll.GetPosition()] == INVALID_INDUSTRYTYPE) {
DrawString(20, right, y + offset, STR_FUND_INDUSTRY_MANY_RANDOM_INDUSTRIES, selected ? TC_WHITE : TC_ORANGE);
continue;
case DPIW_FUND_WIDGET: {
Dimension d = GetStringBoundingBox(STR_FUND_INDUSTRY_BUILD_NEW_INDUSTRY);
d = maxdim(d, GetStringBoundingBox(STR_FUND_INDUSTRY_PROSPECT_NEW_INDUSTRY));
d = maxdim(d, GetStringBoundingBox(STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY));
d.width += padding.width;
d.height += padding.height;
*size = maxdim(*size, d);
break;
}
const IndustrySpec *indsp = GetIndustrySpec(this->index[i + this->vscroll.GetPosition()]);
/* Draw the name of the industry in white is selected, otherwise, in orange */
DrawString(20, right, y + offset, indsp->name, selected ? TC_WHITE : TC_ORANGE);
GfxFillRect(x, y + 1 + offset, x + 10, y + 7 + offset, selected ? 15 : 0);
GfxFillRect(x + 1, y + 2 + offset, x + 9, y + 6 + offset, indsp->map_colour);
}
}
if (this->selected_type == INVALID_INDUSTRYTYPE) {
DrawStringMultiLine(x_str, x_str + max_width, y_str, wi->bottom, STR_FUND_INDUSTRY_MANY_RANDOM_INDUSTRIES_TOOLTIP);
return;
virtual void SetStringParameters(int widget) const
{
switch (widget) {
case DPIW_FUND_WIDGET:
/* Raw industries might be prospected. Show this fact by changing the string
* In Editor, you just build, while ingame, or you fund or you prospect */
if (_game_mode == GM_EDITOR) {
/* We've chosen many random industries but no industries have been specified */
SetDParam(0, STR_FUND_INDUSTRY_BUILD_NEW_INDUSTRY);
} else {
const IndustrySpec *indsp = GetIndustrySpec(this->index[this->selected_index]);
SetDParam(0, (_settings_game.construction.raw_industry_construction == 2 && indsp->IsRawIndustry()) ? STR_FUND_INDUSTRY_PROSPECT_NEW_INDUSTRY : STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY);
}
break;
}
}
if (_game_mode != GM_EDITOR) {
SetDParam(0, indsp->GetConstructionCost());
DrawString(x_str, right, y_str, STR_FUND_INDUSTRY_INDUSTRY_BUILD_COST);
y_str += 11;
}
virtual void DrawWidget(const Rect &r, int widget) const
{
switch (widget) {
case DPIW_MATRIX_WIDGET:
for (byte i = 0; i < this->vscroll.GetCapacity() && i + this->vscroll.GetPosition() < this->count; i++) {
int x = r.left + WD_MATRIX_LEFT;
int y = r.top + WD_MATRIX_TOP + i * this->resize.step_height;
bool selected = this->selected_index == i + this->vscroll.GetPosition();
if (this->index[i + this->vscroll.GetPosition()] == INVALID_INDUSTRYTYPE) {
DrawString(x + MATRIX_TEXT_OFFSET, r.right - WD_MATRIX_RIGHT, y, STR_FUND_INDUSTRY_MANY_RANDOM_INDUSTRIES, selected ? TC_WHITE : TC_ORANGE);
continue;
}
const IndustrySpec *indsp = GetIndustrySpec(this->index[i + this->vscroll.GetPosition()]);
/* Draw the accepted cargos, if any. Otherwhise, will print "Nothing" */
char cargo_suffix[3][512];
GetAllCargoSuffixes(0, CST_FUND, NULL, this->selected_type, indsp, indsp->accepts_cargo, cargo_suffix);
StringID str = STR_INDUSTRY_VIEW_REQUIRES_CARGO;
byte p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->accepts_cargo); j++) {
if (indsp->accepts_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->accepts_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
DrawString(x_str, right, y_str, str);
y_str += 11;
/* Draw the produced cargos, if any. Otherwhise, will print "Nothing" */
GetAllCargoSuffixes(3, CST_FUND, NULL, this->selected_type, indsp, indsp->produced_cargo, cargo_suffix);
str = STR_INDUSTRY_VIEW_PRODUCES_CARGO;
p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->produced_cargo); j++) {
if (indsp->produced_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->produced_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
DrawString(x_str, right, y_str, str);
y_str += 11;
/* Get the additional purchase info text, if it has not already been queried. */
if (this->text[this->selected_index] == STR_NULL) { // Have I been called already?
if (HasBit(indsp->callback_mask, CBM_IND_FUND_MORE_TEXT)) { // No. Can it be called?
uint16 callback_res = GetIndustryCallback(CBID_INDUSTRY_FUND_MORE_TEXT, 0, 0, NULL, this->selected_type, INVALID_TILE);
if (callback_res != CALLBACK_FAILED) { // Did it fail?
StringID newtxt = GetGRFStringID(indsp->grf_prop.grffile->grfid, 0xD000 + callback_res); // No. here's the new string
this->text[this->selected_index] = newtxt; // Store it for further usage
/* Draw the name of the industry in white is selected, otherwise, in orange */
DrawString(x + MATRIX_TEXT_OFFSET, r.right - WD_MATRIX_RIGHT, y, indsp->name, selected ? TC_WHITE : TC_ORANGE);
GfxFillRect(x, y + 1, x + 10, y + 7, selected ? 15 : 0);
GfxFillRect(x + 1, y + 2, x + 9, y + 6, indsp->map_colour);
}
}
}
break;
case DPIW_INFOPANEL: {
int y = r.top + WD_FRAMERECT_TOP;
int bottom = r.bottom - WD_FRAMERECT_BOTTOM;
int left = r.left + WD_FRAMERECT_LEFT;
int right = r.right - WD_FRAMERECT_RIGHT;
if (this->selected_type == INVALID_INDUSTRYTYPE) {
DrawStringMultiLine(left, right, y, bottom, STR_FUND_INDUSTRY_MANY_RANDOM_INDUSTRIES_TOOLTIP);
break;
}
const IndustrySpec *indsp = GetIndustrySpec(this->selected_type);
if (_game_mode != GM_EDITOR) {
SetDParam(0, indsp->GetConstructionCost());
DrawString(left, right, y, STR_FUND_INDUSTRY_INDUSTRY_BUILD_COST);
y += FONT_HEIGHT_NORMAL;
}
/* Draw the accepted cargos, if any. Otherwhise, will print "Nothing" */
char cargo_suffix[3][512];
GetAllCargoSuffixes(0, CST_FUND, NULL, this->selected_type, indsp, indsp->accepts_cargo, cargo_suffix);
StringID str = STR_INDUSTRY_VIEW_REQUIRES_CARGO;
byte p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->accepts_cargo); j++) {
if (indsp->accepts_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->accepts_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
DrawString(left, right, y, str);
y += FONT_HEIGHT_NORMAL;
/* Draw the Additional purchase text, provided by newgrf callback, if any.
* Otherwhise, will print Nothing */
str = this->text[this->selected_index];
if (str != STR_NULL && str != STR_UNDEFINED) {
SetDParam(0, str);
DrawStringMultiLine(x_str, x_str + max_width, y_str, wi->bottom, STR_JUST_STRING);
/* Draw the produced cargos, if any. Otherwhise, will print "Nothing" */
GetAllCargoSuffixes(3, CST_FUND, NULL, this->selected_type, indsp, indsp->produced_cargo, cargo_suffix);
str = STR_INDUSTRY_VIEW_PRODUCES_CARGO;
p = 0;
SetDParam(0, STR_JUST_NOTHING);
SetDParamStr(1, "");
for (byte j = 0; j < lengthof(indsp->produced_cargo); j++) {
if (indsp->produced_cargo[j] == CT_INVALID) continue;
if (p > 0) str++;
SetDParam(p++, CargoSpec::Get(indsp->produced_cargo[j])->name);
SetDParamStr(p++, cargo_suffix[j]);
}
DrawString(left, right, y, str);
y += FONT_HEIGHT_NORMAL;
/* Get the additional purchase info text, if it has not already been queried. */
str = STR_NULL;
if (HasBit(indsp->callback_mask, CBM_IND_FUND_MORE_TEXT)) {
uint16 callback_res = GetIndustryCallback(CBID_INDUSTRY_FUND_MORE_TEXT, 0, 0, NULL, this->selected_type, INVALID_TILE);
if (callback_res != CALLBACK_FAILED) { // Did it fail?
str = GetGRFStringID(indsp->grf_prop.grffile->grfid, 0xD000 + callback_res); // No. here's the new string
}
}
/* Draw the Additional purchase text, provided by newgrf callback, if any.
* Otherwhise, will print Nothing */
if (str != STR_NULL && str != STR_UNDEFINED) {
SetDParam(0, str);
DrawStringMultiLine(left, right, y, bottom, STR_JUST_STRING);
}
} break;
}
}
virtual void OnPaint()
{
this->DrawWidgets();
}
virtual void OnDoubleClick(Point pt, int widget)
{
if (widget != DPIW_MATRIX_WIDGET) return;
@ -347,7 +402,7 @@ public:
switch (widget) {
case DPIW_MATRIX_WIDGET: {
const IndustrySpec *indsp;
int y = (pt.y - this->widget[DPIW_MATRIX_WIDGET].top) / 13 + this->vscroll.GetPosition() ;
int y = (pt.y - this->GetWidget<NWidgetBase>(DPIW_MATRIX_WIDGET)->pos_y) / this->resize.step_height + this->vscroll.GetPosition() ;
if (y >= 0 && y < count) { // Is it within the boundaries of available data?
this->selected_index = y;
@ -362,6 +417,8 @@ public:
this->RaiseButtons();
ResetObjectToPlace();
}
this->SetWidgetDisabledState(DPIW_FUND_WIDGET, !this->enabled[this->selected_index]);
}
} break;
@ -389,9 +446,9 @@ public:
virtual void OnResize()
{
/* Adjust the number of items in the matrix depending of the rezise */
this->vscroll.SetCapacity((this->widget[DPIW_MATRIX_WIDGET].bottom - this->widget[DPIW_MATRIX_WIDGET].top + 1) / this->resize.step_height);
this->widget[DPIW_MATRIX_WIDGET].data = (this->vscroll.GetCapacity() << MAT_ROW_START) + (1 << MAT_COL_START);
/* Adjust the number of items in the matrix depending of the resize */
this->vscroll.SetCapacity(this->GetWidget<NWidgetBase>(DPIW_MATRIX_WIDGET)->current_y / this->resize.step_height);
this->GetWidget<NWidgetCore>(DPIW_MATRIX_WIDGET)->widget_data = (this->vscroll.GetCapacity() << MAT_ROW_START) + (1 << MAT_COL_START);
}
virtual void OnPlaceObject(Point pt, TileIndex tile)
@ -445,6 +502,7 @@ public:
/* Only if result does match the previous state would it require a redraw. */
if (call_back_result != this->enabled[this->selected_index]) {
this->enabled[this->selected_index] = call_back_result;
this->SetWidgetDisabledState(DPIW_FUND_WIDGET, !this->enabled[this->selected_index]);
this->SetDirty();
}
}
@ -464,7 +522,10 @@ public:
virtual void OnInvalidateData(int data = 0)
{
this->SetupArrays();
this->SetDirty();
const IndustrySpec *indsp = (this->selected_type == INVALID_INDUSTRYTYPE) ? NULL : GetIndustrySpec(this->selected_type);
if (indsp == NULL) this->enabled[this->selected_index] = _settings_game.difficulty.number_industries != 0;
this->SetWidgetDisabledState(DPIW_FUND_WIDGET, !this->enabled[this->selected_index]);
}
};

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