haiku/headers/os/interface/CardLayout.h

53 lines
1.3 KiB
C++

/*
* Copyright 2006-2010, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _CARD_LAYOUT_H
#define _CARD_LAYOUT_H
#include <Layout.h>
class BCardLayout : public BLayout {
public:
BCardLayout();
BCardLayout(BMessage* from);
virtual ~BCardLayout();
BLayoutItem* VisibleItem() const;
int32 VisibleIndex() const;
void SetVisibleItem(int32 index);
void SetVisibleItem(BLayoutItem* item);
virtual BSize MinSize();
virtual BSize MaxSize();
virtual BSize PreferredSize();
virtual BAlignment Alignment();
virtual bool HasHeightForWidth();
virtual void GetHeightForWidth(float width, float* min,
float* max, float* preferred);
virtual void InvalidateLayout();
virtual void LayoutView();
virtual status_t Archive(BMessage* into, bool deep = true) const;
virtual status_t AllUnarchived(const BMessage* from);
static BArchivable* Instantiate(BMessage* from);
protected:
virtual bool ItemAdded(BLayoutItem* item, int32 atIndex);
virtual void ItemRemoved(BLayoutItem* item, int32 fromIndex);
private:
BSize fMin;
BSize fMax;
BSize fPreferred;
BLayoutItem* fVisibleItem;
bool fMinMaxValid;
void _ValidateMinMax();
};
#endif // _CARD_LAYOUT_H