haiku/headers/libs/alm/Area.h
Clemens Zeidler 21f083af82 - Implement all Add* function of the BLayout class properly. If the Add* functions of the BLayout class are called add the item to the right upper corner of the previous area. That is at least better than ignore this functions.
- Add more convenience AddViewTo{Right, Left, Top, Bottom} functions to add a item to the sides of an existing area.
- Need to add the Jamfile hack again to include the ViewLayoutItem.h header. I thing about to add the ALMLayout.* files to the interface dir when its a little bit more matured. Then the problem will be solved. Till I made a decision or somebody tell me its a bad idea to add the ALMLayout to the official interface stuff or the ViewLayoutItem.h should be in a shared header dir I will keep this hack.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38793 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-09-23 07:16:49 +00:00

134 lines
2.9 KiB
C++

/*
* Copyright 2006 - 2010, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef AREA_H
#define AREA_H
#include <Alignment.h>
#include <List.h>
#include <Size.h>
#include <SupportDefs.h>
#include <View.h>
#include "Column.h"
#include "LinearSpec.h"
#include "Row.h"
#include "XTab.h"
#include "YTab.h"
class Constraint;
namespace BALM {
/**
* Rectangular area in the GUI, defined by a tab on each side.
*/
class Area {
public:
~Area();
BView* View();
XTab* Left() const;
XTab* Right() const;
YTab* Top() const;
YTab* Bottom() const;
void SetLeft(XTab* left);
void SetRight(XTab* right);
void SetTop(YTab* top);
void SetBottom(YTab* bottom);
Row* GetRow() const;
Column* GetColumn() const;
void SetRow(Row* row);
void SetColumn(Column* column);
double ContentAspectRatio() const;
void SetContentAspectRatio(double ratio);
BSize ShrinkPenalties() const;
BSize GrowPenalties() const;
void SetShrinkPenalties(BSize shrink);
void SetGrowPenalties(BSize grow);
int32 LeftInset() const;
int32 TopInset() const;
int32 RightInset() const;
int32 BottomInset() const;
void SetLeftInset(int32 left);
void SetTopInset(int32 top);
void SetRightInset(int32 right);
void SetBottomInset(int32 bottom);
void SetDefaultBehavior();
bool AutoPreferredContentSize() const;
void SetAutoPreferredContentSize(bool value);
operator BString() const;
void GetString(BString& string) const;
Constraint* SetWidthAs(Area* area, float factor = 1.0f);
Constraint* SetHeightAs(Area* area, float factor = 1.0f);
void InvalidateSizeConstraints();
private:
Area(BLayoutItem* item);
void _Init(LinearSpec* ls, XTab* left, YTab* top,
XTab* right, YTab* bottom);
void _Init(LinearSpec* ls, Row* row, Column* column);
void _DoLayout();
void _UpdateMinSizeConstraint(BSize min);
void _UpdateMaxSizeConstraint(BSize max);
void _UpdatePreferredConstraint(BSize preferred);
private:
BLayoutItem* fLayoutItem;
LinearSpec* fLS;
XTab* fLeft;
XTab* fRight;
YTab* fTop;
YTab* fBottom;
Row* fRow;
Column* fColumn;
BSize fShrinkPenalties;
BSize fGrowPenalties;
BSize fTopLeftInset;
BSize fRightBottomInset;
BList fConstraints;
Constraint* fMinContentWidth;
Constraint* fMaxContentWidth;
Constraint* fMinContentHeight;
Constraint* fMaxContentHeight;
bool fAutoPreferredContentSize;
Constraint* fPreferredContentWidth;
Constraint* fPreferredContentHeight;
double fContentAspectRatio;
Constraint* fContentAspectRatioC;
public:
friend class BALMLayout;
};
} // namespace BALM
using BALM::Area;
#endif // AREA_H