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94 lines
2.5 KiB
94 lines
2.5 KiB
/* -*- 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_PLOT_SCALE_ITEM_H |
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#define QWT_PLOT_SCALE_ITEM_H |
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#include "qwt_global.h" |
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#include "qwt_plot_item.h" |
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#include "qwt_scale_draw.h" |
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class QPalette; |
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/*! |
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\brief A class which draws a scale inside the plot canvas |
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QwtPlotScaleItem can be used to draw an axis inside the plot canvas. |
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It might by synchronized to one of the axis of the plot, but can |
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also display its own ticks and labels. |
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It is allowed to synchronize the scale item with a disabled axis. |
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In plots with vertical and horizontal scale items, it might be |
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necessary to remove ticks at the intersections, by overloading |
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updateScaleDiv(). |
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The scale might be at a specific position (f.e 0.0) or it might be |
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aligned to a canvas border. |
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\par Example |
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The following example shows how to replace the left axis, by a scale item |
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at the x position 0.0. |
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\verbatim |
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QwtPlotScaleItem *scaleItem = |
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new QwtPlotScaleItem(QwtScaleDraw::RightScale, 0.0); |
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scaleItem->setFont(plot->axisWidget(QwtPlot::yLeft)->font()); |
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scaleItem->attach(plot); |
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plot->enableAxis(QwtPlot::yLeft, false); |
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\endverbatim |
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*/ |
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class QWT_EXPORT QwtPlotScaleItem: public QwtPlotItem |
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{ |
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public: |
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explicit QwtPlotScaleItem( |
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QwtScaleDraw::Alignment = QwtScaleDraw::BottomScale, |
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const double pos = 0.0 ); |
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virtual ~QwtPlotScaleItem(); |
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virtual int rtti() const; |
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void setScaleDiv( const QwtScaleDiv& ); |
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const QwtScaleDiv& scaleDiv() const; |
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void setScaleDivFromAxis( bool on ); |
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bool isScaleDivFromAxis() const; |
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void setPalette( const QPalette & ); |
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QPalette palette() const; |
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void setFont( const QFont& ); |
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QFont font() const; |
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void setScaleDraw( QwtScaleDraw * ); |
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const QwtScaleDraw *scaleDraw() const; |
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QwtScaleDraw *scaleDraw(); |
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void setPosition( double pos ); |
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double position() const; |
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void setBorderDistance( int numPixels ); |
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int borderDistance() const; |
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void setAlignment( QwtScaleDraw::Alignment ); |
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virtual void draw( QPainter *p, |
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const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
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const QRectF &rect ) const; |
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virtual void updateScaleDiv( const QwtScaleDiv &, const QwtScaleDiv & ); |
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private: |
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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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