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96e2013e70
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38792 a95241bf-73f2-0310-859d-f6bbb57e9c96
135 lines
2.9 KiB
C++
135 lines
2.9 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 AREA_H
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#define AREA_H
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#include <Alignment.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 "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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class Constraint;
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namespace BALM {
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/**
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* Rectangular area in the GUI, defined by a tab on each side.
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*/
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class Area {
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public:
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~Area();
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BView* View();
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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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void SetLeft(XTab* left);
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void SetRight(XTab* right);
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void SetTop(YTab* top);
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void SetBottom(YTab* bottom);
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Row* GetRow() const;
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Column* GetColumn() const;
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void SetRow(Row* row);
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void SetColumn(Column* column);
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double ContentAspectRatio() const;
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void SetContentAspectRatio(double ratio);
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BSize ShrinkPenalties() const;
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BSize GrowPenalties() const;
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void SetShrinkPenalties(BSize shrink);
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void SetGrowPenalties(BSize grow);
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int32 LeftInset() const;
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int32 TopInset() const;
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int32 RightInset() const;
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int32 BottomInset() const;
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void SetLeftInset(int32 left);
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void SetTopInset(int32 top);
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void SetRightInset(int32 right);
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void SetBottomInset(int32 bottom);
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void SetDefaultBehavior();
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bool AutoPreferredContentSize() const;
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void SetAutoPreferredContentSize(bool value);
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operator BString() const;
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void GetString(BString& string) const;
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Constraint* SetWidthAs(Area* area, float factor = 1.0f);
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Constraint* SetHeightAs(Area* area, float factor = 1.0f);
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void InvalidateSizeConstraints();
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private:
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Area(BLayoutItem* item);
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void _Init(LinearSpec* ls, XTab* left, YTab* top,
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XTab* right, YTab* bottom, BView* content);
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void _Init(LinearSpec* ls, Row* row, Column* column,
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BView* content);
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void _DoLayout();
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void _UpdateMinSizeConstraint(BSize min);
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void _UpdateMaxSizeConstraint(BSize max);
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void _UpdatePreferredConstraint(BSize preferred);
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private:
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BLayoutItem* fLayoutItem;
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LinearSpec* fLS;
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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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Row* fRow;
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Column* fColumn;
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BSize fShrinkPenalties;
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BSize fGrowPenalties;
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BSize fTopLeftInset;
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BSize fRightBottomInset;
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BList fConstraints;
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Constraint* fMinContentWidth;
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Constraint* fMaxContentWidth;
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Constraint* fMinContentHeight;
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Constraint* fMaxContentHeight;
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bool fAutoPreferredContentSize;
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Constraint* fPreferredContentWidth;
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Constraint* fPreferredContentHeight;
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double fContentAspectRatio;
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Constraint* fContentAspectRatioC;
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public:
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friend class BALMLayout;
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};
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} // namespace BALM
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using BALM::Area;
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#endif // AREA_H
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