1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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2 | * Qwt Widget Library
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3 | * Copyright (C) 1997 Josef Wilgen
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4 | * Copyright (C) 2002 Uwe Rathmann
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5 | *
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6 | * This library is free software; you can redistribute it and/or
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7 | * modify it under the terms of the Qwt License, Version 1.0
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8 | *****************************************************************************/
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9 |
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10 | #include "qwt_legend_data.h"
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11 |
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12 | //! Constructor
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13 | QwtLegendData::QwtLegendData()
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14 | {
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15 | }
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16 |
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17 | //! Destructor
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18 | QwtLegendData::~QwtLegendData()
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19 | {
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20 | }
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21 |
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22 | /*!
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23 | Set the legend attributes
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24 |
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25 | QwtLegendData actually is a QMap<int, QVariant> with some
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26 | convenience interfaces
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27 |
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28 | \param map Values
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29 | \sa values()
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30 | */
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31 | void QwtLegendData::setValues( const QMap<int, QVariant> &map )
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32 | {
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33 | d_map = map;
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34 | }
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35 |
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36 | /*!
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37 | \return Legend attributes
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38 | \sa setValues()
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39 | */
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40 | const QMap<int, QVariant> &QwtLegendData::values() const
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41 | {
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42 | return d_map;
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43 | }
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44 |
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45 | /*!
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46 | \param role Attribute role
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47 | \return True, when the internal map has an entry for role
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48 | */
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49 | bool QwtLegendData::hasRole( int role ) const
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50 | {
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51 | return d_map.contains( role );
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52 | }
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53 |
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54 | /*!
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55 | Set an attribute value
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56 |
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57 | \param role Attribute role
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58 | \param data Attribute value
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59 |
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60 | \sa value()
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61 | */
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62 | void QwtLegendData::setValue( int role, const QVariant &data )
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63 | {
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64 | d_map[role] = data;
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65 | }
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66 |
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67 | /*!
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68 | \param role Attribute role
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69 | \return Attribute value for a specific role
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70 | */
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71 | QVariant QwtLegendData::value( int role ) const
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72 | {
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73 | if ( !d_map.contains( role ) )
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74 | return QVariant();
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75 |
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76 | return d_map[role];
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77 | }
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78 |
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79 | //! \return True, when the internal map is empty
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80 | bool QwtLegendData::isValid() const
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81 | {
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82 | return !d_map.isEmpty();
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83 | }
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84 |
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85 | //! \return Value of the TitleRole attribute
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86 | QwtText QwtLegendData::title() const
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87 | {
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88 | QwtText text;
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89 |
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90 | const QVariant titleValue = value( QwtLegendData::TitleRole );
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91 | if ( titleValue.canConvert<QwtText>() )
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92 | {
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93 | text = qvariant_cast<QwtText>( titleValue );
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94 | }
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95 | else if ( titleValue.canConvert<QString>() )
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96 | {
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97 | text.setText( qvariant_cast<QString>( titleValue ) );
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98 | }
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99 |
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100 | return text;
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101 | }
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102 |
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103 | //! \return Value of the IconRole attribute
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104 | QwtGraphic QwtLegendData::icon() const
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105 | {
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106 | const QVariant iconValue = value( QwtLegendData::IconRole );
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107 |
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108 | QwtGraphic graphic;
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109 | if ( iconValue.canConvert<QwtGraphic>() )
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110 | {
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111 | graphic = qvariant_cast<QwtGraphic>( iconValue );
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112 | }
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113 |
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114 | return graphic;
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115 | }
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116 |
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117 | //! \return Value of the ModeRole attribute
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118 | QwtLegendData::Mode QwtLegendData::mode() const
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119 | {
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120 | const QVariant modeValue = value( QwtLegendData::ModeRole );
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121 | if ( modeValue.canConvert<int>() )
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122 | {
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123 | const int mode = qvariant_cast<int>( modeValue );
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124 | return static_cast<QwtLegendData::Mode>( mode );
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125 | }
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126 |
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127 | return QwtLegendData::ReadOnly;
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128 | }
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129 |
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