114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
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/* -*- 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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#include "qwt_plot_seriesitem.h"
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class QwtPlotSeriesItem::PrivateData
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{
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public:
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PrivateData():
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orientation( Qt::Vertical )
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{
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}
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Qt::Orientation orientation;
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};
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/*!
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Constructor
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\param title Title of the curve
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*/
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QwtPlotSeriesItem::QwtPlotSeriesItem( const QwtText &title ):
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QwtPlotItem( title )
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{
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d_data = new PrivateData();
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setItemInterest( QwtPlotItem::ScaleInterest, true );
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}
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/*!
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Constructor
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\param title Title of the curve
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*/
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QwtPlotSeriesItem::QwtPlotSeriesItem( const QString &title ):
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QwtPlotItem( QwtText( title ) )
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{
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d_data = new PrivateData();
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setItemInterest( QwtPlotItem::ScaleInterest, true );
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}
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//! Destructor
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QwtPlotSeriesItem::~QwtPlotSeriesItem()
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{
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delete d_data;
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}
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/*!
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Set the orientation of the item.
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The orientation() might be used in specific way by a plot item.
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F.e. a QwtPlotCurve uses it to identify how to display the curve
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int QwtPlotCurve::Steps or QwtPlotCurve::Sticks style.
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\sa orientation()
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*/
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void QwtPlotSeriesItem::setOrientation( Qt::Orientation orientation )
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{
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if ( d_data->orientation != orientation )
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{
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d_data->orientation = orientation;
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legendChanged();
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itemChanged();
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}
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}
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/*!
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\return Orientation of the plot item
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\sa setOrientation()
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*/
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Qt::Orientation QwtPlotSeriesItem::orientation() const
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{
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return d_data->orientation;
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}
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/*!
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\brief Draw the complete series
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\param painter Painter
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\param xMap Maps x-values into pixel coordinates.
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\param yMap Maps y-values into pixel coordinates.
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\param canvasRect Contents rectangle of the canvas
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*/
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void QwtPlotSeriesItem::draw( QPainter *painter,
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const QwtScaleMap &xMap, const QwtScaleMap &yMap,
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const QRectF &canvasRect ) const
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{
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drawSeries( painter, xMap, yMap, canvasRect, 0, -1 );
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}
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QRectF QwtPlotSeriesItem::boundingRect() const
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{
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return dataRect();
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}
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void QwtPlotSeriesItem::updateScaleDiv(
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const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv )
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{
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const QRectF rect = QRectF(
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xScaleDiv.lowerBound(), yScaleDiv.lowerBound(),
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xScaleDiv.range(), yScaleDiv.range() );
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setRectOfInterest( rect );
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}
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void QwtPlotSeriesItem::dataChanged()
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{
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itemChanged();
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}
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