haiku/headers/libs/alm/BALMLayout.h

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/*
* Copyright 2007-2008, Christof Lutteroth, lutteroth@cs.auckland.ac.nz
* Copyright 2007-2008, James Kim, jkim202@ec.auckland.ac.nz
* Distributed under the terms of the MIT License.
*/
#ifndef BALM_LAYOUT_H
#define BALM_LAYOUT_H
#include <File.h>
#include <Layout.h>
#include <List.h>
#include <Size.h>
#include <SupportDefs.h>
#include <View.h>
#include "LayoutStyleType.h"
#include "LinearSpec.h"
namespace BALM {
class Area;
class Column;
class Row;
class XTab;
class YTab;
/**
* A GUI layout engine using the ALM.
*/
class BALMLayout : public BLayout, public LinearSpec {
public:
BALMLayout();
void SolveLayout();
XTab* AddXTab();
YTab* AddYTab();
Row* AddRow();
Row* AddRow(YTab* top, YTab* bottom);
Column* AddColumn();
Column* AddColumn(XTab* left, XTab* right);
Area* AddArea(XTab* left, YTab* top, XTab* right, YTab* bottom,
BView* content, BSize minContentSize);
Area* AddArea(Row* row, Column* column, BView* content,
BSize minContentSize);
Area* AddArea(XTab* left, YTab* top, XTab* right, YTab* bottom,
BView* content);
Area* AddArea(Row* row, Column* column, BView* content);
Area* AreaOf(BView* control);
BList* Areas() const;
XTab* Left() const;
XTab* Right() const;
YTab* Top() const;
YTab* Bottom() const;
void RecoverLayout(BView* parent);
LayoutStyleType LayoutStyle() const;
void SetLayoutStyle(LayoutStyleType style);
BLayoutItem* AddView(BView* child);
BLayoutItem* AddView(int32 index, BView* child);
bool AddItem(BLayoutItem* item);
bool AddItem(int32 index, BLayoutItem* item);
bool RemoveView(BView* child);
bool RemoveItem(BLayoutItem* item);
BLayoutItem* RemoveItem(int32 index);
BSize MinSize();
BSize MaxSize();
BSize PreferredSize();
BAlignment Alignment();
bool HasHeightForWidth();
void GetHeightForWidth(float width, float* min,
float* max, float* preferred);
void InvalidateLayout();
void LayoutView();
char* PerformancePath() const;
void SetPerformancePath(char* path);
private:
BSize CalculateMinSize();
BSize CalculateMaxSize();
BSize CalculatePreferredSize();
private:
LayoutStyleType fLayoutStyle;
bool fActivated;
BList* fAreas;
XTab* fLeft;
XTab* fRight;
YTab* fTop;
YTab* fBottom;
BSize fMinSize;
BSize fMaxSize;
BSize fPreferredSize;
char* fPerformancePath;
};
} // namespace BALM
using BALM::BALMLayout;
#endif // BALM_LAYOUT_H