~DropdownWindow()
{
/* Make the dropdown "invisible", so it doesn't affect new window placement.
* Also mark it dirty in case the callback deals with the screen. (e.g. screenshots). */
this->window_class = WC_INVALID;
this->SetDirty();
Window *w2 = FindWindowById(this->parent_wnd_class, this->parent_wnd_num);
if (w2 != NULL) {
Point pt = _cursor.pos;
pt.x -= w2->left;
pt.y -= w2->top;
w2->OnDropdownClose(pt, this->parent_button, this->selected_index, this->instant_close);
}
DeleteDropDownList(this->list);
}
/**
* Show a dropdown menu window near a widget of the parent window.
* The result code of the items is their index in the #strings list.
* @param w Parent window that wants the dropdown menu.
* @param strings Menu list, end with #INVALID_STRING_ID
* @param selected Index of initial selected item.
* @param button Button widget number of the parent window #w that wants the dropdown menu.
* @param disabled_mask Bitmask for diabled items (items with their bit set are not copied to the dropdown list).
* @param hidden_mask Bitmask for hidden items (items with their bit set are displayed, but not selectable in the dropdown list).
* @param width Width of the dropdown menu. If \c 0, use the width of parent widget #button.
*/
void ShowDropDownMenu(Window *w, const StringID *strings, int selected, int button, uint32 disabled_mask, uint32 hidden_mask, uint width)
{
DropDownList *list = new DropDownList();
for (uint i = 0; strings[i] != INVALID_STRING_ID; i++) {
if (!HasBit(hidden_mask, i)) {
list->push_back(new DropDownListStringItem(strings[i], i, HasBit(disabled_mask, i)));
}
}
/* No entries in the list? */
if (list->size() == 0) {
DeleteDropDownList(list);
return;
}
ShowDropDownList(w, list, selected, button, width);
}
~DropdownWindow()
{
Window *w2 = FindWindowById(this->parent_wnd_class, this->parent_wnd_num);
if (w2 != NULL) {
if (w2->nested_array != NULL) {
NWidgetCore *nwi2 = w2->GetWidget<NWidgetCore>(this->parent_button);
if (nwi2->type == NWID_BUTTON_DROPDOWN) {
nwi2->disp_flags &= ~ND_DROPDOWN_ACTIVE;
} else {
w2->RaiseWidget(this->parent_button);
}
} else {
w2->RaiseWidget(this->parent_button);
}
w2->SetWidgetDirty(this->parent_button);
}
DeleteDropDownList(this->list);
}
