Qwt User's Guide
6.0.2
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src
qwt_plot_item.h
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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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#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 <qrect.h>
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class
QString;
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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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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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{
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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_PlotSpectroCurve
,
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Rtti_PlotIntervalCurve
,
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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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{
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Legend = 0x01,
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AutoScale = 0x02
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};
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typedef
QFlags<ItemAttribute>
ItemAttributes
;
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enum
RenderHint
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{
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RenderAntialiased = 1
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};
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typedef
QFlags<RenderHint>
RenderHints
;
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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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void
detach();
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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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void
setRenderHint(
RenderHint
,
bool
on =
true
);
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bool
testRenderHint(
RenderHint
)
const
;
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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
setAxes(
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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virtual
void
draw( QPainter *painter,
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const
QwtScaleMap
&xMap,
const
QwtScaleMap
&yMap,
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const
QRectF &canvasRect )
const
= 0;
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virtual
QRectF boundingRect()
const
;
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virtual
void
updateLegend
(
QwtLegend
* )
const
;
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virtual
void
updateScaleDiv(
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const
QwtScaleDiv
&,
const
QwtScaleDiv
& );
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virtual
QWidget *
legendItem
()
const
;
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QRectF scaleRect(
const
QwtScaleMap
&,
const
QwtScaleMap
& )
const
;
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QRectF paintRect(
const
QwtScaleMap
&,
const
QwtScaleMap
& )
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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Q_DECLARE_OPERATORS_FOR_FLAGS(
QwtPlotItem::ItemAttributes
)
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Q_DECLARE_OPERATORS_FOR_FLAGS(
QwtPlotItem
::RenderHints )
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#endif
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