Qwt User's Guide 6.0.1

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# qwt_scale_draw.h

    00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
    00002  * Qwt Widget Library
    00003  * Copyright (C) 1997   Josef Wilgen
    00004  * Copyright (C) 2002   Uwe Rathmann
    00005  *
    00006  * This library is free software; you can redistribute it and/or
    00007  * modify it under the terms of the Qwt License, Version 1.0
    00008  *****************************************************************************/
    00009
    00010 #ifndef QWT_SCALE_DRAW_H
    00011 #define QWT_SCALE_DRAW_H
    00012
    00013 #include "qwt_global.h"
    00014 #include "qwt_abstract_scale_draw.h"
    00015 #include <qpoint.h>
    00016 #include <qrect.h>
    00017 #include <qtransform.h>
    00018
    00032 class QWT_EXPORT QwtScaleDraw: public QwtAbstractScaleDraw
    00033 {
    00034 public:
    00039     enum Alignment
    00040     {
    00042         BottomScale,
    00043
    00045         TopScale,
    00046
    00048         LeftScale,
    00049
    00051         RightScale
    00052     };
    00053
    00054     QwtScaleDraw();
    00055     virtual ~QwtScaleDraw();
    00056
    00057     void getBorderDistHint( const QFont &, int &start, int &end ) const;
    00058     int minLabelDist( const QFont & ) const;
    00059
    00060     int minLength( const QFont & ) const;
    00061     virtual double extent( const QFont & ) const;
    00062
    00063     void move( double x, double y );
    00064     void move( const QPointF & );
    00065     void setLength( double length );
    00066
    00067     Alignment alignment() const;
    00068     void setAlignment( Alignment );
    00069
    00070     Qt::Orientation orientation() const;
    00071
    00072     QPointF pos() const;
    00073     double length() const;
    00074
    00075     void setLabelAlignment( Qt::Alignment );
    00076     Qt::Alignment labelAlignment() const;
    00077
    00078     void setLabelRotation( double rotation );
    00079     double labelRotation() const;
    00080
    00081     int maxLabelHeight( const QFont & ) const;
    00082     int maxLabelWidth( const QFont & ) const;
    00083
    00084     QPointF labelPosition( double val ) const;
    00085
    00086     QRectF labelRect( const QFont &, double val ) const;
    00087     QSizeF labelSize( const QFont &, double val ) const;
    00088
    00089     QRect boundingLabelRect( const QFont &, double val ) const;
    00090
    00091 protected:
    00092     QTransform labelTransformation( const QPointF &, const QSizeF & ) const;
    00093
    00094     virtual void drawTick( QPainter *, double val, double len ) const;
    00095     virtual void drawBackbone( QPainter * ) const;
    00096     virtual void drawLabel( QPainter *, double val ) const;
    00097
    00098 private:
    00099     QwtScaleDraw( const QwtScaleDraw & );
    00100     QwtScaleDraw &operator=( const QwtScaleDraw &other );
    00101
    00102     void updateMap();
    00103
    00104     class PrivateData;
    00105     PrivateData *d_data;
    00106 };
    00107
    00112 inline void QwtScaleDraw::move( double x, double y )
    00113 {
    00114     move( QPointF( x, y ) );
    00115 }
    00116
    00117 #endif