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109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/* -*- 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_LAYOUT_H
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#define QWT_PLOT_LAYOUT_H
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#include "qwt_global.h"
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#include "qwt_plot.h"
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/*!
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\brief Layout engine for QwtPlot.
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It is used by the QwtPlot widget to organize its internal widgets
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or by QwtPlot::print() to render its content to a QPaintDevice like
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a QPrinter, QPixmap/QImage or QSvgRenderer.
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*/
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class QWT_EXPORT QwtPlotLayout
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{
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public:
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/*!
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Options to configure the plot layout engine
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- AlignScales\n
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Unused
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- IgnoreScrollbars\n
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Ignore the dimension of the scrollbars. There are no
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scrollbars, when the plot is rendered to a paint device
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(QwtPlot::print() ).
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- IgnoreFrames\n
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Ignore all frames. QwtPlot::print() doesn't paint them.
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- IgnoreMargin\n
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Ignore the margin().
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- IgnoreLegend\n
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Ignore the legend.
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\sa activate()
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*/
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enum Options
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{
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AlignScales = 1,
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IgnoreScrollbars = 2,
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IgnoreFrames = 4,
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IgnoreMargin = 8,
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IgnoreLegend = 16
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};
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explicit QwtPlotLayout();
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virtual ~QwtPlotLayout();
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void setMargin(int);
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int margin() const;
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void setCanvasMargin(int margin, int axis = -1);
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int canvasMargin(int axis) const;
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void setAlignCanvasToScales(bool);
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bool alignCanvasToScales() const;
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void setSpacing(int);
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int spacing() const;
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void setLegendPosition(QwtPlot::LegendPosition pos, double ratio);
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void setLegendPosition(QwtPlot::LegendPosition pos);
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QwtPlot::LegendPosition legendPosition() const;
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void setLegendRatio(double ratio);
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double legendRatio() const;
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virtual QSize minimumSizeHint(const QwtPlot *) const;
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virtual void activate(const QwtPlot *,
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const QRect &rect, int options = 0);
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virtual void invalidate();
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const QRect &titleRect() const;
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const QRect &legendRect() const;
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const QRect &scaleRect(int axis) const;
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const QRect &canvasRect() const;
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class LayoutData;
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protected:
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QRect layoutLegend(int options, const QRect &) const;
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QRect alignLegend(const QRect &canvasRect,
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const QRect &legendRect) const;
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void expandLineBreaks(int options, const QRect &rect,
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int &dimTitle, int dimAxes[QwtPlot::axisCnt]) const;
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void alignScales(int options, QRect &canvasRect,
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QRect scaleRect[QwtPlot::axisCnt]) const;
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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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