qwt_plot_layout.h
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00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** 00002 * Qwt Widget Library 00003 * Copyright (C) 1997 Josef Wilgen 00004 * Copyright (C) 2002 Uwe Rathmann 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the Qwt License, Version 1.0 00008 *****************************************************************************/ 00009 00010 #ifndef QWT_PLOT_LAYOUT_H 00011 #define QWT_PLOT_LAYOUT_H 00012 00013 #include "qwt_global.h" 00014 #include "qwt_plot.h" 00015 00024 class QWT_EXPORT QwtPlotLayout 00025 { 00026 public: 00045 enum Options 00046 { 00047 AlignScales = 1, 00048 IgnoreScrollbars = 2, 00049 IgnoreFrames = 4, 00050 IgnoreMargin = 8, 00051 IgnoreLegend = 16 00052 }; 00053 00054 explicit QwtPlotLayout(); 00055 virtual ~QwtPlotLayout(); 00056 00057 void setMargin(int); 00058 int margin() const; 00059 00060 void setCanvasMargin(int margin, int axis = -1); 00061 int canvasMargin(int axis) const; 00062 00063 void setAlignCanvasToScales(bool); 00064 bool alignCanvasToScales() const; 00065 00066 void setSpacing(int); 00067 int spacing() const; 00068 00069 void setLegendPosition(QwtPlot::LegendPosition pos, double ratio); 00070 void setLegendPosition(QwtPlot::LegendPosition pos); 00071 QwtPlot::LegendPosition legendPosition() const; 00072 00073 void setLegendRatio(double ratio); 00074 double legendRatio() const; 00075 00076 virtual QSize minimumSizeHint(const QwtPlot *) const; 00077 00078 virtual void activate(const QwtPlot *, 00079 const QRect &rect, int options = 0); 00080 00081 virtual void invalidate(); 00082 00083 const QRect &titleRect() const; 00084 const QRect &legendRect() const; 00085 const QRect &scaleRect(int axis) const; 00086 const QRect &canvasRect() const; 00087 00088 class LayoutData; 00089 00090 protected: 00091 00092 QRect layoutLegend(int options, const QRect &) const; 00093 QRect alignLegend(const QRect &canvasRect, 00094 const QRect &legendRect) const; 00095 00096 void expandLineBreaks(int options, const QRect &rect, 00097 int &dimTitle, int dimAxes[QwtPlot::axisCnt]) const; 00098 00099 void alignScales(int options, QRect &canvasRect, 00100 QRect scaleRect[QwtPlot::axisCnt]) const; 00101 00102 private: 00103 class PrivateData; 00104 00105 PrivateData *d_data; 00106 }; 00107 00108 #endif
