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Fix crash in NewGRF parameters window (manual parameter mode)

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See: https://github.com/OpenTTD/OpenTTD/issues/11215
This commit is contained in:
Jonathan G Rennison
2023-08-20 11:27:42 +01:00
parent 19835b51ee
commit ff61b6d243
1 changed files with 3 additions and 4 deletions
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7
src/newgrf_gui.cpp
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@@ -365,10 +365,9 @@ struct NewGRFParametersWindow : public Window {
case WID_NP_BACKGROUND: {
if (!this->editable) break;
auto it = this->vscroll->GetScrolledItemFromWidget(this->grf_config->param_info, pt.y, this, WID_NP_BACKGROUND);
if (it == this->grf_config->param_info.end()) break;
uint num = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_NP_BACKGROUND);
if (num >= this->vscroll->GetCount()) break;
uint num = it - this->grf_config->param_info.begin();
if (this->clicked_row != num) {
DeleteChildWindows(WC_QUERY_STRING);
HideDropDownMenu(this);
@@ -380,7 +379,7 @@ struct NewGRFParametersWindow : public Window {
int x = pt.x - r.left;
if (_current_text_dir == TD_RTL) x = r.Width() - 1 - x;
GRFParameterInfo &par_info = it->has_value() ? it->value() : GetDummyParameterInfo(num);
GRFParameterInfo &par_info = this->GetParameterInfo(num);
/* One of the arrows is clicked */
uint32 old_val = par_info.GetValue(this->grf_config);