Qwt User's Guide 5.2.3

- Main Page
- Related Pages
- Classes

qwt_plot_layout.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #ifndef QWT_PLOT_LAYOUT_H
11 #define QWT_PLOT_LAYOUT_H
12
13 #include "qwt_global.h"
14 #include "qwt_plot.h"
15
24 class QWT_EXPORT QwtPlotLayout
25 {
26 public:
45 enum Options
46 {
47 AlignScales = 1,
48 IgnoreScrollbars = 2,
49 IgnoreFrames = 4,
50 IgnoreMargin = 8,
51 IgnoreLegend = 16
52 };
53
54 explicit QwtPlotLayout();
55 virtual ~QwtPlotLayout();
56
57 void setMargin(int);
58 int margin() const;
59
60 void setCanvasMargin(int margin, int axis = -1);
61 int canvasMargin(int axis) const;
62
63 void setAlignCanvasToScales(bool);
64 bool alignCanvasToScales() const;
65
66 void setSpacing(int);
67 int spacing() const;
68
69 void setLegendPosition(QwtPlot::LegendPosition pos, double ratio);
70 void setLegendPosition(QwtPlot::LegendPosition pos);
71 QwtPlot::LegendPosition legendPosition() const;
72
73 void setLegendRatio(double ratio);
74 double legendRatio() const;
75
76 virtual QSize minimumSizeHint(const QwtPlot *) const;
77
78 virtual void activate(const QwtPlot *,
79 const QRect &rect, int options = 0);
80
81 virtual void invalidate();
82
83 const QRect &titleRect() const;
84 const QRect &legendRect() const;
85 const QRect &scaleRect(int axis) const;
86 const QRect &canvasRect() const;
87
88 class LayoutData;
89
90 protected:
91
92 QRect layoutLegend(int options, const QRect &) const;
93 QRect alignLegend(const QRect &canvasRect,
94 const QRect &legendRect) const;
95
96 void expandLineBreaks(int options, const QRect &rect,
97 int &dimTitle, int dimAxes[QwtPlot::axisCnt]) const;
98
99 void alignScales(int options, QRect &canvasRect,
100 QRect scaleRect[QwtPlot::axisCnt]) const;
101
102 private:
103 class PrivateData;
104
105 PrivateData *d_data;
106 };
107
108 #endif