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85 lines
2.4 KiB
85 lines
2.4 KiB
#ifndef ELEMENT_H
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#define ELEMENT_H
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#include <qcolor.h>
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#include <qnamespace.h>
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#include <qstring.h>
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#include <qvaluevector.h>
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class Element;
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typedef QValueVector<Element> ElementVector;
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/*
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Elements are valid if they have a value which is > EPSILON.
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*/
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const double EPSILON = 0.0000001; // Must be > INVALID.
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class Element
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{
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public:
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enum { INVALID = -1 };
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enum { NO_PROPORTION = -1 };
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enum { MAX_PROPOINTS = 3 }; // One proportional point per chart type
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Element( double value = INVALID, QColor valueColor = Qt::gray,
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int valuePattern = Qt::SolidPattern,
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const QString& label = QString::null,
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QColor labelColor = Qt::black ) {
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init( value, valueColor, valuePattern, label, labelColor );
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for ( int i = 0; i < MAX_PROPOINTS * 2; ++i )
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m_propoints[i] = NO_PROPORTION;
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}
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~Element() {}
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bool isValid() const { return m_value > EPSILON; }
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double value() const { return m_value; }
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QColor valueColor() const { return m_valueColor; }
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int valuePattern() const { return m_valuePattern; }
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QString label() const { return m_label; }
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QColor labelColor() const { return m_labelColor; }
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double proX( int index ) const;
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double proY( int index ) const;
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void set( double value = INVALID, QColor valueColor = Qt::gray,
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int valuePattern = Qt::SolidPattern,
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const QString& label = QString::null,
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QColor labelColor = Qt::black ) {
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init( value, valueColor, valuePattern, label, labelColor );
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}
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void setValue( double value ) { m_value = value; }
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void setValueColor( QColor valueColor ) { m_valueColor = valueColor; }
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void setValuePattern( int valuePattern );
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void setLabel( const QString& label ) { m_label = label; }
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void setLabelColor( QColor labelColor ) { m_labelColor = labelColor; }
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void setProX( int index, double value );
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void setProY( int index, double value );
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#ifdef Q_FULL_TEMPLATE_INSTANTIATION
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// xlC 3.x workaround
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Q_DUMMY_COMPARISON_OPERATOR(Element)
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bool operator!=( const Element& e) const {
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return ( !(e == *this) );
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}
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#endif
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private:
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void init( double value, QColor valueColor, int valuePattern,
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const QString& label, QColor labelColor );
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double m_value;
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QColor m_valueColor;
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int m_valuePattern;
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QString m_label;
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QColor m_labelColor;
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double m_propoints[2 * MAX_PROPOINTS];
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};
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QTextStream &operator<<( QTextStream&, const Element& );
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QTextStream &operator>>( QTextStream&, Element& );
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#endif
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