xmake.repo/packages/n/noesis/latest/Include/NsGui/ItemsPresenter.h
2024-12-22 19:15:02 +08:00

69 lines
1.9 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////////////////
// NoesisGUI - http://www.noesisengine.com
// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef __GUI_ITEMSPRESENTER_H__
#define __GUI_ITEMSPRESENTER_H__
#include <NsCore/Noesis.h>
#include <NsGui/CoreApi.h>
#include <NsGui/FrameworkElement.h>
namespace Noesis
{
class Panel;
class ItemContainerGenerator;
class ScrollContentPresenter;
////////////////////////////////////////////////////////////////////////////////////////////////////
/// Used within the template of an ItemControl to specify the place in the control's visual tree
/// where the ItemsPanel defined by the ItemsControl is to be added.
///
/// http://msdn.microsoft.com/en-us/library/system.windows.controls.itemspresenter.aspx
////////////////////////////////////////////////////////////////////////////////////////////////////
class NS_GUI_CORE_API ItemsPresenter: public FrameworkElement
{
public:
ItemsPresenter();
~ItemsPresenter();
protected:
/// From FrameworkElement
//@{
Size MeasureOverride(const Size& availableSize) override;
void OnTemplatedParentChanged(FrameworkElement* oldParent,
FrameworkElement* newParent) override;
//@}
private:
friend class ItemsControl;
friend class ItemContainerGenerator;
friend class ScrollContentPresenter;
static ItemsPresenter* FromPanel(Panel* panel);
ItemContainerGenerator* GetGenerator() const;
void InvalidateItemsHost();
void RefreshItemsHost();
void SetScrollPresenter(ScrollContentPresenter* scrollPresenter);
void UpdateScrollPresenter();
void OnPresenterDestroyed(DependencyObject* d);
private:
bool mRefreshItemsHost;
ScrollContentPresenter* mScrollPresenter;
NS_DECLARE_REFLECTION(ItemsPresenter, FrameworkElement)
};
}
#endif