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Codechange: Add method to replace the content of a dropdown menu. 

If necessary the dropdown list window will be resized and scrollbar enabled/disabled.
This commit is contained in:
Peter Nelson 2023-11-11 21:57:49 +00:00 committed by Peter Nelson
parent ac44c001a4
commit 0ce30d05c8
2 changed files with 18 additions and 1 deletions
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17
src/widgets/dropdown.cpp
View File

@ -42,7 +42,7 @@ static WindowDesc _dropdown_desc(__FILE__, __LINE__,
struct DropdownWindow : Window {
WidgetID parent_button; ///< Parent widget number where the window is dropped from.
Rect wi_rect; ///< Rect of the button that opened the dropdown.
const DropDownList list; ///< List with dropdown menu items.
DropDownList list; ///< List with dropdown menu items.
int selected_result; ///< Result value of the selected item in the list.
byte click_delay = 0; ///< Timer to delay selection.
bool drag_mode = true;
@ -303,8 +303,23 @@ struct DropdownWindow : Window {
}
}
}
void ReplaceList(DropDownList &&list)
{
this->list = std::move(list);
this->UpdateSizeAndPosition();
this->ReInit(0, 0);
this->InitializePositionSize(this->position.x, this->position.y, this->nested_root->smallest_x, this->nested_root->smallest_y);
this->SetDirty();
}
};
void ReplaceDropDownList(Window *parent, DropDownList &&list)
{
DropdownWindow *ddw = dynamic_cast<DropdownWindow *>(parent->FindChildWindow(WC_DROPDOWN_MENU));
if (ddw != nullptr) ddw->ReplaceList(std::move(list));
}
/**
* Determine width and height required to fully display a DropDownList
* @param list The list.

2
src/widgets/dropdown_type.h
View File

@ -215,4 +215,6 @@ void ShowDropDownList(Window *w, DropDownList &&list, int selected, WidgetID but
Dimension GetDropDownListDimension(const DropDownList &list);
void ReplaceDropDownList(Window *parent, DropDownList &&list);
#endif /* WIDGETS_DROPDOWN_TYPE_H */