qwt_plot_picker.h
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 // vim: expandtab 00011 00012 #ifndef QWT_PLOT_PICKER_H 00013 #define QWT_PLOT_PICKER_H 00014 00015 #include "qwt_double_rect.h" 00016 #include "qwt_plot_canvas.h" 00017 #include "qwt_picker.h" 00018 00019 class QwtPlot; 00020 00029 class QWT_EXPORT QwtPlotPicker: public QwtPicker 00030 { 00031 Q_OBJECT 00032 00033 public: 00034 explicit QwtPlotPicker(QwtPlotCanvas *); 00035 virtual ~QwtPlotPicker(); 00036 00037 explicit QwtPlotPicker(int xAxis, int yAxis, 00038 QwtPlotCanvas *); 00039 00040 explicit QwtPlotPicker(int xAxis, int yAxis, int selectionFlags, 00041 RubberBand rubberBand, DisplayMode trackerMode, 00042 QwtPlotCanvas *); 00043 00044 virtual void setAxis(int xAxis, int yAxis); 00045 00046 int xAxis() const; 00047 int yAxis() const; 00048 00049 QwtPlot *plot(); 00050 const QwtPlot *plot() const; 00051 00052 QwtPlotCanvas *canvas(); 00053 const QwtPlotCanvas *canvas() const; 00054 00055 signals: 00056 00061 void selected(const QwtDoublePoint &pos); 00062 00067 void selected(const QwtDoubleRect &rect); 00068 00075 void selected(const QwtArray<QwtDoublePoint> &pa); 00076 00083 void appended(const QwtDoublePoint &pos); 00084 00092 void moved(const QwtDoublePoint &pos); 00093 00094 protected: 00095 QwtDoubleRect scaleRect() const; 00096 00097 QwtDoubleRect invTransform(const QRect &) const; 00098 QRect transform(const QwtDoubleRect &) const; 00099 00100 QwtDoublePoint invTransform(const QPoint &) const; 00101 QPoint transform(const QwtDoublePoint &) const; 00102 00103 virtual QwtText trackerText(const QPoint &) const; 00104 virtual QwtText trackerText(const QwtDoublePoint &) const; 00105 00106 virtual void move(const QPoint &); 00107 virtual void append(const QPoint &); 00108 virtual bool end(bool ok = true); 00109 00110 private: 00111 int d_xAxis; 00112 int d_yAxis; 00113 }; 00114 00115 #endif
Generated on Wed Sep 2 18:37:22 2009 for Qwt User's Guide by
1.6.1