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84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_DYNGRID_LAYOUT_H
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#define QWT_DYNGRID_LAYOUT_H
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#include "qwt_global.h"
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#include <qlayout.h>
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#include <qsize.h>
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#include <qlist.h>
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/*!
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\brief The QwtDynGridLayout class lays out widgets in a grid,
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adjusting the number of columns and rows to the current size.
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QwtDynGridLayout takes the space it gets, divides it up into rows and
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columns, and puts each of the widgets it manages into the correct cell(s).
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It lays out as many number of columns as possible (limited by maxColumns()).
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*/
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class QWT_EXPORT QwtDynGridLayout : public QLayout
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{
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Q_OBJECT
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public:
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explicit QwtDynGridLayout( QWidget *, int margin = 0, int spacing = -1 );
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explicit QwtDynGridLayout( int spacing = -1 );
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virtual ~QwtDynGridLayout();
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virtual void invalidate();
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void setMaxColumns( uint maxColumns );
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uint maxColumns() const;
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uint numRows () const;
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uint numColumns () const;
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virtual void addItem( QLayoutItem * );
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virtual QLayoutItem *itemAt( int index ) const;
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virtual QLayoutItem *takeAt( int index );
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virtual int count() const;
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void setExpandingDirections( Qt::Orientations );
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virtual Qt::Orientations expandingDirections() const;
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QList<QRect> layoutItems( const QRect &, uint numColumns ) const;
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virtual int maxItemWidth() const;
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virtual void setGeometry( const QRect &rect );
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virtual bool hasHeightForWidth() const;
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virtual int heightForWidth( int ) const;
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virtual QSize sizeHint() const;
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virtual bool isEmpty() const;
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uint itemCount() const;
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virtual uint columnsForWidth( int width ) const;
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protected:
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void layoutGrid( uint numColumns,
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QVector<int>& rowHeight, QVector<int>& colWidth ) const;
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void stretchGrid( const QRect &rect, uint numColumns,
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QVector<int>& rowHeight, QVector<int>& colWidth ) const;
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private:
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void init();
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int maxRowWidth( int numColumns ) const;
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class PrivateData;
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PrivateData *d_data;
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};
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#endif
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