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96e2013e70
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38792 a95241bf-73f2-0310-859d-f6bbb57e9c96
105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
/*
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* Copyright 2006 - 2010, Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef ALM_LAYOUT_H
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#define ALM_LAYOUT_H
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#include <AbstractLayout.h>
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#include <File.h>
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#include <List.h>
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#include <Size.h>
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#include <SupportDefs.h>
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#include <View.h>
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#include "Area.h"
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#include "Column.h"
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#include "LinearSpec.h"
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#include "Row.h"
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#include "XTab.h"
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#include "YTab.h"
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namespace BALM {
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/*!
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* A GUI layout engine using the Auckland Layout Model (ALM).
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*/
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class BALMLayout : public BAbstractLayout {
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public:
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BALMLayout(float spacing = 0.0f);
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virtual ~BALMLayout();
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XTab* AddXTab();
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YTab* AddYTab();
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Row* AddRow();
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Row* AddRow(YTab* top, YTab* bottom);
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Column* AddColumn();
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Column* AddColumn(XTab* left, XTab* right);
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Area* AddArea(XTab* left, YTab* top, XTab* right,
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YTab* bottom, BView* content);
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Area* AddArea(Row* row, Column* column,
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BView* content);
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Area* AreaOf(BView* control);
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XTab* Left() const;
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XTab* Right() const;
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YTab* Top() const;
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YTab* Bottom() const;
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virtual BSize BaseMinSize();
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virtual BSize BaseMaxSize();
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virtual BSize BasePreferredSize();
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virtual BAlignment BaseAlignment();
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virtual void InvalidateLayout(bool children = false);
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virtual bool ItemAdded(BLayoutItem* item, int32 atIndex);
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virtual void ItemRemoved(BLayoutItem* item, int32 fromIndex);
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virtual void DerivedLayoutItems();
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char* PerformancePath() const;
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void SetPerformancePath(char* path);
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LinearSpec* Solver();
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void SetInset(float inset);
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float Inset();
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void SetSpacing(float spacing);
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float Spacing();
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private:
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void _SolveLayout();
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Area* _AreaForItem(BLayoutItem* item) const;
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void _UpdateAreaConstraints();
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BSize _CalculateMinSize();
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BSize _CalculateMaxSize();
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BSize _CalculatePreferredSize();
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LinearSpec fSolver;
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XTab* fLeft;
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XTab* fRight;
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YTab* fTop;
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YTab* fBottom;
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BSize fMinSize;
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BSize fMaxSize;
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BSize fPreferredSize;
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char* fPerformancePath;
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float fInset;
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float fSpacing;
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};
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} // namespace BALM
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using BALM::BALMLayout;
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#endif // ALM_LAYOUT_H
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