mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r20451) -Codechange: Add helper function Window::GetScrollbar() to get the Scrollbar belonging to a scrollbar widget.
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@ -130,6 +130,39 @@ void Scrollbar::SetCapacityFromWidget(Window *w, int widget, int padding)
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}
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}
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/**
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* Return the Scrollbar to a widget index.
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* @param widnum Scrollbar widget index
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* @return Scrollbar to the widget
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*/
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const Scrollbar *Window::GetScrollbar(uint widnum) const
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{
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const NWidgetLeaf *wid = this->GetWidget<NWidgetLeaf>(widnum);
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switch (wid->type) {
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case WWT_HSCROLLBAR: return &this->hscroll;
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case WWT_SCROLLBAR: return &this->vscroll;
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case WWT_SCROLL2BAR: return &this->vscroll2;
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default: NOT_REACHED();
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}
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}
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/**
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* Return the Scrollbar to a widget index.
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* @param widnum Scrollbar widget index
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* @return Scrollbar to the widget
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*/
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Scrollbar *Window::GetScrollbar(uint widnum)
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{
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NWidgetLeaf *wid = this->GetWidget<NWidgetLeaf>(widnum);
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switch (wid->type) {
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case WWT_HSCROLLBAR: return &this->hscroll;
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case WWT_SCROLLBAR: return &this->vscroll;
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case WWT_SCROLL2BAR: return &this->vscroll2;
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default: NOT_REACHED();
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}
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}
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/**
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* Set the window that has the focus
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* @param w The window to set the focus on
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@ -407,6 +407,8 @@ public:
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template <class NWID>
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inline NWID *GetWidget(uint widnum);
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const Scrollbar *GetScrollbar(uint widnum) const;
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Scrollbar *GetScrollbar(uint widnum);
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void InitNested(const WindowDesc *desc, WindowNumber number = 0);
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void CreateNestedTree(const WindowDesc *desc, bool fill_nested = true);
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