haiku/headers/os/interface/GroupLayout.h
Ingo Weinhold 9ecf9d1c1d Merge from layout management branch.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18649 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-08-26 16:21:15 +00:00

62 lines
1.8 KiB
C++

/*
* Copyright 2006, Haiku Inc.
* Distributed under the terms of the MIT License.
*/
#ifndef _GROUP_LAYOUT_H
#define _GROUP_LAYOUT_H
#include <TwoDimensionalLayout.h>
class BGroupLayout : public BTwoDimensionalLayout {
public:
BGroupLayout(enum orientation orientation,
float spacing = 0.0f);
virtual ~BGroupLayout();
float Spacing() const;
void SetSpacing(float spacing);
orientation Orientation() const;
void SetOrientation(enum orientation orientation);
float ItemWeight(int32 index) const;
void SetItemWeight(int32 index, float weight);
virtual BLayoutItem* AddView(BView* child);
virtual BLayoutItem* AddView(int32 index, BView* child);
virtual BLayoutItem* AddView(BView* child, float weight);
virtual BLayoutItem* AddView(int32 index, BView* child,
float weight);
virtual bool AddItem(BLayoutItem* item);
virtual bool AddItem(int32 index, BLayoutItem* item);
virtual bool AddItem(BLayoutItem* item, float weight);
virtual bool AddItem(int32 index, BLayoutItem* item,
float weight);
protected:
virtual void ItemAdded(BLayoutItem* item);
virtual void ItemRemoved(BLayoutItem* item);
virtual void PrepareItems(enum orientation orientation);
virtual int32 InternalCountColumns();
virtual int32 InternalCountRows();
virtual void GetColumnRowConstraints(
enum orientation orientation,
int32 index,
ColumnRowConstraints* constraints);
virtual void GetItemDimensions(BLayoutItem* item,
Dimensions* dimensions);
private:
struct ItemLayoutData;
ItemLayoutData* _LayoutDataForItem(BLayoutItem* item) const;
orientation fOrientation;
BList fVisibleItems;
};
#endif // _GROUP_LAYOUT_H