61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
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/*
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* Copyright 2006, Haiku Inc.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _LAYOUT_ITEM_H
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#define _LAYOUT_ITEM_H
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#include <Alignment.h>
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#include <Rect.h>
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#include <Size.h>
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class BLayout;
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class BView;
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class BLayoutItem {
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public:
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BLayoutItem();
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virtual ~BLayoutItem();
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BLayout* Layout() const;
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virtual BSize MinSize() = 0;
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virtual BSize MaxSize() = 0;
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virtual BSize PreferredSize() = 0;
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virtual BAlignment Alignment() = 0;
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virtual void SetExplicitMinSize(BSize size) = 0;
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virtual void SetExplicitMaxSize(BSize size) = 0;
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virtual void SetExplicitPreferredSize(BSize size) = 0;
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virtual void SetExplicitAlignment(BAlignment alignment) = 0;
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virtual bool IsVisible() = 0;
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virtual void SetVisible(bool visible) = 0;
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virtual BRect Frame() = 0;
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virtual void SetFrame(BRect frame) = 0;
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virtual bool HasHeightForWidth();
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virtual void GetHeightForWidth(float width, float* min,
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float* max, float* preferred);
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virtual BView* View();
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virtual void InvalidateLayout();
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void* LayoutData() const;
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void SetLayoutData(void* data);
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void AlignInFrame(BRect frame);
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private:
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friend class BLayout;
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void SetLayout(BLayout* layout);
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BLayout* fLayout;
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void* fLayoutData;
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};
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#endif // _LAYOUT_ITEM_H
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