<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial2.doc:2 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>chart/element.h Example File</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>chart/element.h Example File</h1> <pre>#ifndef ELEMENT_H #define ELEMENT_H #include <<a href="qcolor-h.html">qcolor.h</a>> #include <<a href="qnamespace-h.html">qnamespace.h</a>> #include <<a href="qstring-h.html">qstring.h</a>> #include <<a href="qvaluevector-h.html">qvaluevector.h</a>> class Element; typedef QValueVector<Element> ElementVector; /* Elements are valid if they have a value which is > EPSILON. */ const double EPSILON = 0.0000001; // Must be > INVALID. class Element { public: enum { INVALID = -1 }; enum { NO_PROPORTION = -1 }; enum { MAX_PROPOINTS = 3 }; // One proportional point per chart type Element( double value = INVALID, QColor valueColor = Qt::gray, int valuePattern = Qt::SolidPattern, const <a href="qstring.html">QString</a>& label = QString::null, <a href="qcolor.html">QColor</a> labelColor = Qt::black ) { init( value, valueColor, valuePattern, label, labelColor ); for ( int i = 0; i < MAX_PROPOINTS * 2; ++i ) m_propoints[i] = NO_PROPORTION; } ~Element() {} bool isValid() const { return m_value > EPSILON; } double value() const { return m_value; } <a href="qcolor.html">QColor</a> valueColor() const { return m_valueColor; } int valuePattern() const { return m_valuePattern; } <a href="qstring.html">QString</a> label() const { return m_label; } <a href="qcolor.html">QColor</a> labelColor() const { return m_labelColor; } double proX( int index ) const; double proY( int index ) const; void set( double value = INVALID, QColor valueColor = Qt::gray, int valuePattern = Qt::SolidPattern, const <a href="qstring.html">QString</a>& label = QString::null, <a href="qcolor.html">QColor</a> labelColor = Qt::black ) { init( value, valueColor, valuePattern, label, labelColor ); } void setValue( double value ) { m_value = value; } void setValueColor( <a href="qcolor.html">QColor</a> valueColor ) { m_valueColor = valueColor; } void setValuePattern( int valuePattern ); void setLabel( const <a href="qstring.html">QString</a>& label ) { m_label = label; } void setLabelColor( <a href="qcolor.html">QColor</a> labelColor ) { m_labelColor = labelColor; } void setProX( int index, double value ); void setProY( int index, double value ); #ifdef Q_FULL_TEMPLATE_INSTANTIATION // xlC 3.x workaround Q_DUMMY_COMPARISON_OPERATOR(Element) bool operator!=( const Element& e) const { return ( !(e == *this) ); } #endif private: void init( double value, QColor valueColor, int valuePattern, const <a href="qstring.html">QString</a>& label, QColor labelColor ); double m_value; <a href="qcolor.html">QColor</a> m_valueColor; int m_valuePattern; <a href="qstring.html">QString</a> m_label; <a href="qcolor.html">QColor</a> m_labelColor; double m_propoints[2 * MAX_PROPOINTS]; }; QTextStream &operator<<( <a href="qtextstream.html">QTextStream</a>&, const Element& ); QTextStream &operator>>( <a href="qtextstream.html">QTextStream</a>&, Element& ); #endif </pre><!-- eof --> <p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>Qt 3.3.8</div> </table></div></address></body> </html>