| 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
|
|---|
| 2 | * Qwt Widget Library
|
|---|
| 3 | * Copyright (C) 1997 Josef Wilgen
|
|---|
| 4 | * Copyright (C) 2002 Uwe Rathmann
|
|---|
| 5 | *
|
|---|
| 6 | * This library is free software; you can redistribute it and/or
|
|---|
| 7 | * modify it under the terms of the Qwt License, Version 1.0
|
|---|
| 8 | *****************************************************************************/
|
|---|
| 9 |
|
|---|
| 10 | #ifndef QWT_DYNGRID_LAYOUT_H
|
|---|
| 11 | #define QWT_DYNGRID_LAYOUT_H
|
|---|
| 12 |
|
|---|
| 13 | #include "qwt_global.h"
|
|---|
| 14 | #include <qlayout.h>
|
|---|
| 15 | #include <qsize.h>
|
|---|
| 16 | #include <qlist.h>
|
|---|
| 17 |
|
|---|
| 18 | /*!
|
|---|
| 19 | \brief The QwtDynGridLayout class lays out widgets in a grid,
|
|---|
| 20 | adjusting the number of columns and rows to the current size.
|
|---|
| 21 |
|
|---|
| 22 | QwtDynGridLayout takes the space it gets, divides it up into rows and
|
|---|
| 23 | columns, and puts each of the widgets it manages into the correct cell(s).
|
|---|
| 24 | It lays out as many number of columns as possible (limited by maxCols()).
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 | class QWT_EXPORT QwtDynGridLayout : public QLayout
|
|---|
| 28 | {
|
|---|
| 29 | Q_OBJECT
|
|---|
| 30 | public:
|
|---|
| 31 | explicit QwtDynGridLayout( QWidget *, int margin = 0, int space = -1 );
|
|---|
| 32 | explicit QwtDynGridLayout( int space = -1 );
|
|---|
| 33 |
|
|---|
| 34 | virtual ~QwtDynGridLayout();
|
|---|
| 35 |
|
|---|
| 36 | virtual void invalidate();
|
|---|
| 37 |
|
|---|
| 38 | void setMaxCols( uint maxCols );
|
|---|
| 39 | uint maxCols() const;
|
|---|
| 40 |
|
|---|
| 41 | uint numRows () const;
|
|---|
| 42 | uint numCols () const;
|
|---|
| 43 |
|
|---|
| 44 | virtual void addItem( QLayoutItem * );
|
|---|
| 45 |
|
|---|
| 46 | virtual QLayoutItem *itemAt( int index ) const;
|
|---|
| 47 | virtual QLayoutItem *takeAt( int index );
|
|---|
| 48 | virtual int count() const;
|
|---|
| 49 |
|
|---|
| 50 | void setExpandingDirections( Qt::Orientations );
|
|---|
| 51 | virtual Qt::Orientations expandingDirections() const;
|
|---|
| 52 | QList<QRect> layoutItems( const QRect &, uint numCols ) const;
|
|---|
| 53 |
|
|---|
| 54 | virtual int maxItemWidth() const;
|
|---|
| 55 |
|
|---|
| 56 | virtual void setGeometry( const QRect &rect );
|
|---|
| 57 |
|
|---|
| 58 | virtual bool hasHeightForWidth() const;
|
|---|
| 59 | virtual int heightForWidth( int ) const;
|
|---|
| 60 |
|
|---|
| 61 | virtual QSize sizeHint() const;
|
|---|
| 62 |
|
|---|
| 63 | virtual bool isEmpty() const;
|
|---|
| 64 | uint itemCount() const;
|
|---|
| 65 |
|
|---|
| 66 | virtual uint columnsForWidth( int width ) const;
|
|---|
| 67 |
|
|---|
| 68 | protected:
|
|---|
| 69 |
|
|---|
| 70 | void layoutGrid( uint numCols,
|
|---|
| 71 | QVector<int>& rowHeight, QVector<int>& colWidth ) const;
|
|---|
| 72 | void stretchGrid( const QRect &rect, uint numCols,
|
|---|
| 73 | QVector<int>& rowHeight, QVector<int>& colWidth ) const;
|
|---|
| 74 |
|
|---|
| 75 | private:
|
|---|
| 76 | void init();
|
|---|
| 77 | int maxRowWidth( int numCols ) const;
|
|---|
| 78 |
|
|---|
| 79 | class PrivateData;
|
|---|
| 80 | PrivateData *d_data;
|
|---|
| 81 | };
|
|---|
| 82 |
|
|---|
| 83 | #endif
|
|---|
