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<pre>#ifndef ELEMENT_H
#define ELEMENT_H
#include &lt;<a href="qcolor-h.html">ntqcolor.h</a>&gt;
#include &lt;<a href="qnamespace-h.html">ntqnamespace.h</a>&gt;
#include &lt;<a href="qstring-h.html">ntqstring.h</a>&gt;
#include &lt;<a href="qvaluevector-h.html">ntqvaluevector.h</a>&gt;
class Element;
typedef TQValueVector&lt;Element&gt; ElementVector;
/*
Elements are valid if they have a value which is &gt; EPSILON.
*/
const double EPSILON = 0.0000001; // Must be &gt; 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, TQColor valueColor = TQt::gray,
int valuePattern = TQt::SolidPattern,
const <a href="ntqstring.html">TQString</a>&amp; label = TQString::null,
<a href="ntqcolor.html">TQColor</a> labelColor = TQt::black ) {
init( value, valueColor, valuePattern, label, labelColor );
for ( int i = 0; i &lt; MAX_PROPOINTS * 2; ++i )
m_propoints[i] = NO_PROPORTION;
}
~Element() {}
bool isValid() const { return m_value &gt; EPSILON; }
double value() const { return m_value; }
<a href="ntqcolor.html">TQColor</a> valueColor() const { return m_valueColor; }
int valuePattern() const { return m_valuePattern; }
<a href="ntqstring.html">TQString</a> label() const { return m_label; }
<a href="ntqcolor.html">TQColor</a> labelColor() const { return m_labelColor; }
double proX( int index ) const;
double proY( int index ) const;
void set( double value = INVALID, TQColor valueColor = TQt::gray,
int valuePattern = TQt::SolidPattern,
const <a href="ntqstring.html">TQString</a>&amp; label = TQString::null,
<a href="ntqcolor.html">TQColor</a> labelColor = TQt::black ) {
init( value, valueColor, valuePattern, label, labelColor );
}
void setValue( double value ) { m_value = value; }
void setValueColor( <a href="ntqcolor.html">TQColor</a> valueColor ) { m_valueColor = valueColor; }
void setValuePattern( int valuePattern );
void setLabel( const <a href="ntqstring.html">TQString</a>&amp; label ) { m_label = label; }
void setLabelColor( <a href="ntqcolor.html">TQColor</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&amp; e) const {
return ( !(e == *this) );
}
#endif
private:
void init( double value, TQColor valueColor, int valuePattern,
const <a href="ntqstring.html">TQString</a>&amp; label, TQColor labelColor );
double m_value;
<a href="ntqcolor.html">TQColor</a> m_valueColor;
int m_valuePattern;
<a href="ntqstring.html">TQString</a> m_label;
<a href="ntqcolor.html">TQColor</a> m_labelColor;
double m_propoints[2 * MAX_PROPOINTS];
};
TQTextStream &amp;operator&lt;&lt;( <a href="ntqtextstream.html">TQTextStream</a>&amp;, const Element&amp; );
TQTextStream &amp;operator&gt;&gt;( <a href="ntqtextstream.html">TQTextStream</a>&amp;, Element&amp; );
#endif
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