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146 lines
3.6 KiB
146 lines
3.6 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_ITEM_H |
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#define QWT_PLOT_ITEM_H |
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#include "qwt_global.h" |
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#include "qwt_legend_itemmanager.h" |
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#include "qwt_text.h" |
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#include "qwt_double_rect.h" |
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class QString; |
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class QRect; |
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class QPainter; |
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class QWidget; |
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class QwtPlot; |
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class QwtLegend; |
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class QwtScaleMap; |
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class QwtScaleDiv; |
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/*! |
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\brief Base class for items on the plot canvas |
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*/ |
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class QWT_EXPORT QwtPlotItem: public QwtLegendItemManager |
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{ |
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public: |
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enum RttiValues { |
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Rtti_PlotItem = 0, |
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Rtti_PlotGrid, |
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Rtti_PlotScale, |
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Rtti_PlotMarker, |
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Rtti_PlotCurve, |
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Rtti_PlotHistogram, |
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Rtti_PlotSpectrogram, |
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Rtti_PlotSVG, |
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Rtti_PlotUserItem = 1000 |
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}; |
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enum ItemAttribute { |
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Legend = 1, |
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AutoScale = 2 |
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}; |
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#if QT_VERSION >= 0x040000 |
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enum RenderHint { |
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RenderAntialiased = 1 |
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}; |
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#endif |
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explicit QwtPlotItem(const QwtText &title = QwtText()); |
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virtual ~QwtPlotItem(); |
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void attach(QwtPlot *plot); |
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/*! |
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\brief This method detaches a QwtPlotItem from any QwtPlot it has been |
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associated with. |
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detach() is equivalent to calling attach( NULL ) |
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\sa attach( QwtPlot* plot ) |
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*/ |
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void detach() { |
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attach(NULL); |
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} |
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QwtPlot *plot() const; |
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void setTitle(const QString &title); |
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void setTitle(const QwtText &title); |
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const QwtText &title() const; |
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virtual int rtti() const; |
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void setItemAttribute(ItemAttribute, bool on = true); |
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bool testItemAttribute(ItemAttribute) const; |
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#if QT_VERSION >= 0x040000 |
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void setRenderHint(RenderHint, bool on = true); |
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bool testRenderHint(RenderHint) const; |
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#endif |
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double z() const; |
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void setZ(double z); |
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void show(); |
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void hide(); |
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virtual void setVisible(bool); |
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bool isVisible () const; |
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void setAxis(int xAxis, int yAxis); |
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void setXAxis(int axis); |
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int xAxis() const; |
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void setYAxis(int axis); |
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int yAxis() const; |
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virtual void itemChanged(); |
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/*! |
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\brief Draw the item |
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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 rect of the canvas in painter coordinates |
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*/ |
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virtual void draw(QPainter *painter, |
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const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
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const QRect &canvasRect) const = 0; |
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virtual QwtDoubleRect boundingRect() const; |
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virtual void updateLegend(QwtLegend *) const; |
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virtual void updateScaleDiv(const QwtScaleDiv&, |
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const QwtScaleDiv&); |
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virtual QWidget *legendItem() const; |
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QwtDoubleRect scaleRect(const QwtScaleMap &, const QwtScaleMap &) const; |
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QRect paintRect(const QwtScaleMap &, const QwtScaleMap &) const; |
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QRect transform(const QwtScaleMap &, const QwtScaleMap &, |
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const QwtDoubleRect&) const; |
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QwtDoubleRect invTransform(const QwtScaleMap &, const QwtScaleMap &, |
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const QRect&) const; |
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private: |
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// Disabled copy constructor and operator= |
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QwtPlotItem( const QwtPlotItem & ); |
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QwtPlotItem &operator=( const QwtPlotItem & ); |
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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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