135 lines
4.0 KiB
C++
135 lines
4.0 KiB
C++
/*
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* Copyright 2006-2011, 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 _GRID_LAYOUT_H
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#define _GRID_LAYOUT_H
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#include <TwoDimensionalLayout.h>
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class BGridLayout : public BTwoDimensionalLayout {
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public:
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BGridLayout(float horizontal
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= B_USE_DEFAULT_SPACING,
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float vertical = B_USE_DEFAULT_SPACING);
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BGridLayout(BMessage* from);
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virtual ~BGridLayout();
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int32 CountColumns() const;
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int32 CountRows() const;
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float HorizontalSpacing() const;
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float VerticalSpacing() const;
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void SetHorizontalSpacing(float spacing);
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void SetVerticalSpacing(float spacing);
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void SetSpacing(float horizontal, float vertical);
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float ColumnWeight(int32 column) const;
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void SetColumnWeight(int32 column, float weight);
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float MinColumnWidth(int32 column) const;
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void SetMinColumnWidth(int32 column, float width);
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float MaxColumnWidth(int32 column) const;
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void SetMaxColumnWidth(int32 column, float width);
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float RowWeight(int32 row) const;
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void SetRowWeight(int32 row, float weight);
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float MinRowHeight(int row) const;
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void SetMinRowHeight(int32 row, float height);
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float MaxRowHeight(int32 row) const;
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void SetMaxRowHeight(int32 row, float height);
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BLayoutItem* ItemAt(int32 column, int32 row) const;
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virtual BLayoutItem* AddView(BView* child);
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virtual BLayoutItem* AddView(int32 index, BView* child);
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virtual BLayoutItem* AddView(BView* child, int32 column, int32 row,
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int32 columnCount = 1, int32 rowCount = 1);
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virtual bool AddItem(BLayoutItem* item);
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virtual bool AddItem(int32 index, BLayoutItem* item);
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virtual bool AddItem(BLayoutItem* item, int32 column,
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int32 row, int32 columnCount = 1,
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int32 rowCount = 1);
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virtual status_t Archive(BMessage* into, bool deep = true) const;
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static BArchivable* Instantiate(BMessage* from);
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virtual status_t Perform(perform_code d, void* arg);
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protected:
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virtual status_t AllArchived(BMessage* into) const;
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virtual status_t AllUnarchived(const BMessage* from);
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virtual status_t ItemArchived(BMessage* into,
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BLayoutItem* item, int32 index) const;
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virtual status_t ItemUnarchived(const BMessage* from,
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BLayoutItem* item, int32 index);
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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 bool HasMultiColumnItems();
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virtual bool HasMultiRowItems();
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virtual int32 InternalCountColumns();
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virtual int32 InternalCountRows();
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virtual void GetColumnRowConstraints(
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orientation orientation,
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int32 index,
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ColumnRowConstraints* constraints);
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virtual void GetItemDimensions(BLayoutItem* item,
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Dimensions* dimensions);
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private:
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class DummyLayoutItem;
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class RowInfoArray;
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struct ItemLayoutData;
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bool _IsGridCellEmpty(int32 column, int32 row);
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bool _AreGridCellsEmpty(int32 column, int32 row,
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int32 columnCount, int32 rowCount);
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bool _InsertItemIntoGrid(BLayoutItem* item);
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bool _ResizeGrid(int32 columnCount, int32 rowCount);
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ItemLayoutData* _LayoutDataForItem(BLayoutItem* item) const;
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private:
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// FBC padding
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virtual void _ReservedGridLayout1();
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virtual void _ReservedGridLayout2();
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virtual void _ReservedGridLayout3();
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virtual void _ReservedGridLayout4();
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virtual void _ReservedGridLayout5();
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virtual void _ReservedGridLayout6();
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virtual void _ReservedGridLayout7();
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virtual void _ReservedGridLayout8();
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virtual void _ReservedGridLayout9();
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virtual void _ReservedGridLayout10();
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// forbidden methods
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BGridLayout(const BGridLayout&);
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void operator =(const BGridLayout&);
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BLayoutItem*** fGrid;
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int32 fColumnCount;
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int32 fRowCount;
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RowInfoArray* fRowInfos;
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RowInfoArray* fColumnInfos;
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int32 fMultiColumnItems;
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int32 fMultiRowItems;
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uint32 _reserved[5];
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};
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#endif // _GRID_LAYOUT_H
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