163 lines
3.4 KiB
C++
163 lines
3.4 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 <vector>
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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 "Tab.h"
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class Constraint;
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namespace BALM {
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class GroupItem {
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public:
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GroupItem(BLayoutItem* item);
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GroupItem(BView* view);
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BLayoutItem* LayoutItem();
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BView* View();
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const std::vector<GroupItem>& GroupItems();
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enum orientation Orientation();
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GroupItem& operator|(const GroupItem& right);
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GroupItem& operator/(const GroupItem& bottom);
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private:
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GroupItem();
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void _Init(BLayoutItem* item, BView* view,
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enum orientation orien = B_HORIZONTAL);
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GroupItem& _AddItem(const GroupItem& item,
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enum orientation orien);
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BLayoutItem* fLayoutItem;
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BView* fView;
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std::vector<GroupItem> fGroupItems;
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enum orientation fOrientation;
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};
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class RowColumnManager;
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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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BLayoutItem* Item();
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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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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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float LeftInset() const;
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float TopInset() const;
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float RightInset() const;
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float BottomInset() const;
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void SetLeftInset(float left);
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void SetTopInset(float top);
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void SetRightInset(float right);
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void SetBottomInset(float bottom);
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BString ToString() 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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BRect Frame();
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BRect ItemFrame();
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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,
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RowColumnManager* manager);
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void _Init(LinearSpec* ls, Row* row, Column* column,
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RowColumnManager* manager);
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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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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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BObjectList<Constraint> 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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double fContentAspectRatio;
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Constraint* fContentAspectRatioC;
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RowColumnManager* fRowColumnManager;
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public:
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friend class BALMLayout;
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friend class RowColumnManager;
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};
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} // namespace BALM
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using BALM::Area;
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using BALM::GroupItem;
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#endif // AREA_H
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