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1 | 1 | /**************************************************************************** |
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2 | 2 | ** |
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3 | 3 | ** Copyright (C) 2012 Digia Plc |
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4 | 4 | ** All rights reserved. |
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5 | 5 | ** For any questions to Digia, please use contact form at http://qt.digia.com |
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6 | 6 | ** |
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7 | 7 | ** This file is part of the Qt Commercial Charts Add-on. |
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8 | 8 | ** |
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9 | 9 | ** $QT_BEGIN_LICENSE$ |
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10 | 10 | ** Licensees holding valid Qt Commercial licenses may use this file in |
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11 | 11 | ** accordance with the Qt Commercial License Agreement provided with the |
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12 | 12 | ** Software or, alternatively, in accordance with the terms contained in |
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13 | 13 | ** a written agreement between you and Digia. |
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14 | 14 | ** |
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15 | 15 | ** If you have questions regarding the use of this file, please use |
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16 | 16 | ** contact form at http://qt.digia.com |
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17 | 17 | ** $QT_END_LICENSE$ |
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18 | 18 | ** |
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19 | 19 | ****************************************************************************/ |
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20 | 20 | |
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21 | 21 | #include "qdatetimeaxis.h" |
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22 | 22 | #include "qdatetimeaxis_p.h" |
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23 | 23 | #include "chartdatetimeaxisx_p.h" |
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24 | 24 | #include "chartdatetimeaxisy_p.h" |
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25 | 25 | #include "domain_p.h" |
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26 | 26 | #include <cmath> |
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27 | 27 | |
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28 | 28 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
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29 | 29 | /*! |
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30 | 30 | \class QDateTimeAxis |
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31 | 31 | \brief The QDateTimeAxis class is used for manipulating chart's axis. |
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32 | 32 | \mainclass |
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33 | 33 | |
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34 | 34 | The labels can be configured by setting an appropriate DateTime format. |
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35 | 35 | QDateTimeAxis works correctly with dates from 4714 BCE to 287396 CE |
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36 | 36 | There are also other limitiation related to QDateTime . Please refer to QDateTime documentation. |
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37 | 37 | QDateTimeAxis can be setup to show axis line with tick marks, grid lines and shades. |
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38 | 38 | |
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39 |
NOTE: QDateTimeAxis is disabled on ARM |
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39 | NOTE: QDateTimeAxis is disabled on ARM architecture. | |
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40 | 40 | |
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41 | 41 | \image api_datatime_axis.png |
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42 | 42 | |
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43 | 43 | QDateTimeAxis can be used with QLineSeries, QSplineSeries or QScatterSeries. |
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44 | 44 | To add a data point to the series QDateTime::toMSecsSinceEpoch() is used. |
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45 | 45 | \code |
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46 | 46 | QLineSeries *series = new QLineSeries; |
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47 | 47 | |
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48 | 48 | QDateTime xValue; |
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49 | 49 | xValue.setDate(QDate(2012, 1 , 18)); |
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50 | 50 | xValue.setTime(QTime(9, 34)); |
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51 | 51 | qreal yValue = 12; |
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52 | 52 | series->append(xValue.toMSecsSinceEpoch(), yValue); |
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53 | 53 | |
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54 | 54 | xValue.setDate(QDate(2013, 5 , 11)); |
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55 | 55 | xValue.setTime(QTime(11, 14)); |
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56 | 56 | qreal yValue = 22; |
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57 | 57 | series->append(xValue.toMSecsSinceEpoch(), yValue); |
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58 | 58 | \endcode |
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59 | 59 | |
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60 | 60 | Adding the series to the chart and setting up the QDateTimeAxis. |
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61 | 61 | \code |
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62 | 62 | QChartView *chartView = new QChartView; |
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63 | 63 | chartView->chart()->addSeries(series); |
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64 | 64 | |
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65 | 65 | // ... |
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66 | 66 | QDateTimeAxis *axisX = new QDateTimeAxis; |
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67 | 67 | axisX->setFormat("dd-MM-yyyy h:mm"); |
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68 | 68 | chartView->chart()->setAxisX(series, axisX); |
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69 | 69 | \endcode |
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70 | 70 | */ |
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71 | 71 | |
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72 | 72 | /*! |
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73 | 73 | \qmlclass DateTimeAxis QDateTimeAxis |
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74 | 74 | \brief The DateTimeAxis element is used for manipulating chart's axes |
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75 | 75 | \inherits AbstractAxis |
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76 | 76 | |
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77 | 77 | The labels can be configured by setting an appropriate DateTime format. |
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78 | 78 | Note that any date before 4714 BCE or after about 1.4 million CE may not be accurately stored. |
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79 | 79 | DateTimeAxis can be setup to show axis line with tick marks, grid lines and shades. |
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80 | 80 | */ |
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81 | 81 | |
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82 | 82 | /*! |
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83 | 83 | \property QDateTimeAxis::min |
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84 | 84 | Defines the minimum value on the axis. |
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85 | 85 | When setting this property the max is adjusted if necessary, to ensure that the range remains valid. |
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86 | 86 | */ |
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87 | 87 | /*! |
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88 | 88 | \qmlproperty real ValuesAxis::min |
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89 | 89 | Defines the minimum value on the axis. |
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90 | 90 | When setting this property the max is adjusted if necessary, to ensure that the range remains valid. |
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91 | 91 | */ |
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92 | 92 | |
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93 | 93 | /*! |
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94 | 94 | \property QDateTimeAxis::max |
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95 | 95 | Defines the maximum value on the axis. |
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96 | 96 | When setting this property the min is adjusted if necessary, to ensure that the range remains valid. |
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97 | 97 | */ |
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98 | 98 | /*! |
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99 | 99 | \qmlproperty real ValuesAxis::max |
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100 | 100 | Defines the maximum value on the axis. |
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101 | 101 | When setting this property the min is adjusted if necessary, to ensure that the range remains valid. |
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102 | 102 | */ |
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103 | 103 | |
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104 | 104 | /*! |
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105 | 105 | \fn void QDateTimeAxis::minChanged(QDateTime min) |
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106 | 106 | Axis emits signal when \a min of axis has changed. |
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107 | 107 | */ |
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108 | 108 | /*! |
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109 | 109 | \qmlsignal ValuesAxis::onMinChanged(QDateTime min) |
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110 | 110 | Axis emits signal when \a min of axis has changed. |
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111 | 111 | */ |
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112 | 112 | |
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113 | 113 | /*! |
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114 | 114 | \fn void QDateTimeAxis::maxChanged(QDateTime max) |
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115 | 115 | Axis emits signal when \a max of axis has changed. |
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116 | 116 | */ |
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117 | 117 | /*! |
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118 | 118 | \qmlsignal ValuesAxis::onMaxChanged(QDateTime max) |
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119 | 119 | Axis emits signal when \a max of axis has changed. |
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120 | 120 | */ |
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121 | 121 | |
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122 | 122 | /*! |
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123 | 123 | \fn void QDateTimeAxis::rangeChanged(QDateTime min, QDateTime max) |
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124 | 124 | Axis emits signal when \a min or \a max of axis has changed. |
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125 | 125 | */ |
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126 | 126 | |
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127 | 127 | /*! |
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128 | 128 | \property QDateTimeAxis::tickCount |
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129 | 129 | The number of tick marks for the axis. |
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130 | 130 | */ |
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131 | 131 | |
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132 | 132 | /*! |
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133 | 133 | \qmlproperty int DateTimeAxis::tickCount |
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134 | 134 | The number of tick marks for the axis. |
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135 | 135 | */ |
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136 | 136 | |
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137 | 137 | /*! |
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138 | 138 | \property QDateTimeAxis::format |
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139 | 139 | The format string that is used when creating label for the axis out of a QDateTime object. |
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140 | 140 | Check QDateTime documentation for information on how the string should be defined. |
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141 | 141 | */ |
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142 | 142 | /*! |
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143 | 143 | \qmlproperty string DateTimeAxis::format |
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144 | 144 | The format string that is used when creating label for the axis out of a QDateTime object. |
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145 | 145 | Check QDateTime documentation for information on how the string should be defined. |
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146 | 146 | */ |
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147 | 147 | |
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148 | 148 | /*! |
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149 | 149 | \fn void QDateTimeAxis::formatChanged(QString format) |
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150 | 150 | Axis emits signal when \a format of the axis has changed. |
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151 | 151 | */ |
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152 | 152 | /*! |
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153 | 153 | \qmlsignal DateTimeAxis::onFormatChanged(string format) |
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154 | 154 | Axis emits signal when \a format of the axis has changed. |
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155 | 155 | */ |
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156 | 156 | |
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157 | 157 | /*! |
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158 | 158 | Constructs an axis object which is a child of \a parent. |
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159 | 159 | */ |
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160 | 160 | QDateTimeAxis::QDateTimeAxis(QObject *parent) : |
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161 | 161 | QAbstractAxis(*new QDateTimeAxisPrivate(this),parent) |
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162 | 162 | { |
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163 | 163 | |
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164 | 164 | } |
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165 | 165 | |
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166 | 166 | /*! |
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167 | 167 | \internal |
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168 | 168 | */ |
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169 | 169 | QDateTimeAxis::QDateTimeAxis(QDateTimeAxisPrivate &d,QObject *parent) : QAbstractAxis(d,parent) |
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170 | 170 | { |
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171 | 171 | |
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172 | 172 | } |
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173 | 173 | |
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174 | 174 | /*! |
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175 | 175 | Destroys the object |
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176 | 176 | */ |
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177 | 177 | QDateTimeAxis::~QDateTimeAxis() |
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178 | 178 | { |
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179 | 179 | |
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180 | 180 | } |
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181 | 181 | |
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182 | 182 | void QDateTimeAxis::setMin(QDateTime min) |
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183 | 183 | { |
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184 | 184 | Q_D(QDateTimeAxis); |
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185 | 185 | if (min.isValid()) |
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186 | 186 | setRange(min, qMax(d->m_max, min)); |
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187 | 187 | } |
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188 | 188 | |
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189 | 189 | QDateTime QDateTimeAxis::min() const |
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190 | 190 | { |
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191 | 191 | Q_D(const QDateTimeAxis); |
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192 | 192 | return d->m_min; |
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193 | 193 | } |
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194 | 194 | |
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195 | 195 | void QDateTimeAxis::setMax(QDateTime max) |
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196 | 196 | { |
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197 | 197 | Q_D(QDateTimeAxis); |
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198 | 198 | if (max.isValid()) |
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199 | 199 | setRange(qMin(d->m_min, max), max); |
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200 | 200 | } |
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201 | 201 | |
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202 | 202 | QDateTime QDateTimeAxis::max() const |
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203 | 203 | { |
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204 | 204 | Q_D(const QDateTimeAxis); |
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205 | 205 | return d->m_max; |
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206 | 206 | } |
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207 | 207 | |
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208 | 208 | /*! |
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209 | 209 | Sets range from \a min to \a max on the axis. |
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210 | 210 | If min is greater than max then this function returns without making any changes. |
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211 | 211 | */ |
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212 | 212 | void QDateTimeAxis::setRange(QDateTime min, QDateTime max) |
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213 | 213 | { |
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214 | 214 | Q_D(QDateTimeAxis); |
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215 | 215 | if (!min.isValid() || !max.isValid() || min > max) |
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216 | 216 | return; |
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217 | 217 | |
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218 | 218 | bool changed = false; |
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219 | 219 | if (d->m_min != min) { |
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220 | 220 | d->m_min = min; |
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221 | 221 | changed = true; |
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222 | 222 | emit minChanged(min); |
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223 | 223 | } |
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224 | 224 | |
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225 | 225 | if (d->m_max != max) { |
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226 | 226 | d->m_max = max; |
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227 | 227 | changed = true; |
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228 | 228 | emit maxChanged(max); |
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229 | 229 | } |
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230 | 230 | |
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231 | 231 | if (changed) { |
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232 | 232 | emit rangeChanged(d->m_min,d->m_max); |
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233 | 233 | d->emitUpdated(); |
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234 | 234 | } |
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235 | 235 | } |
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236 | 236 | |
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237 | 237 | void QDateTimeAxis::setFormat(QString format) |
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238 | 238 | { |
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239 | 239 | Q_D(QDateTimeAxis); |
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240 | 240 | if (d->m_format != format) { |
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241 | 241 | d->m_format = format; |
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242 | 242 | emit formatChanged(format); |
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243 | 243 | } |
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244 | 244 | } |
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245 | 245 | |
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246 | 246 | QString QDateTimeAxis::format() const |
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247 | 247 | { |
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248 | 248 | Q_D(const QDateTimeAxis); |
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249 | 249 | return d->m_format; |
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250 | 250 | } |
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251 | 251 | |
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252 | 252 | /*! |
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253 | 253 | Sets \a count for ticks on the axis. |
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254 | 254 | */ |
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255 | 255 | void QDateTimeAxis::setTickCount(int count) |
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256 | 256 | { |
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257 | 257 | Q_D(QDateTimeAxis); |
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258 | 258 | if (d->m_tickCount != count && count >=2) { |
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259 | 259 | d->m_tickCount = count; |
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260 | 260 | d->emitUpdated(); |
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261 | 261 | } |
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262 | 262 | } |
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263 | 263 | |
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264 | 264 | /*! |
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265 | 265 | \fn int QDateTimeAxis::tickCount() const |
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266 | 266 | Return number of ticks on the axis |
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267 | 267 | */ |
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268 | 268 | int QDateTimeAxis::tickCount() const |
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269 | 269 | { |
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270 | 270 | Q_D(const QDateTimeAxis); |
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271 | 271 | return d->m_tickCount; |
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272 | 272 | } |
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273 | 273 | |
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274 | 274 | /*! |
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275 | 275 | Returns the type of the axis |
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276 | 276 | */ |
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277 | 277 | QAbstractAxis::AxisType QDateTimeAxis::type() const |
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278 | 278 | { |
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279 | 279 | return AxisTypeDateTime; |
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280 | 280 | } |
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281 | 281 | |
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282 | 282 | ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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283 | 283 | |
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284 | 284 | QDateTimeAxisPrivate::QDateTimeAxisPrivate(QDateTimeAxis* q): |
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285 | 285 | QAbstractAxisPrivate(q), |
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286 | 286 | m_min(QDateTime::fromMSecsSinceEpoch(0)), |
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287 | 287 | m_max(QDateTime::fromMSecsSinceEpoch(0)), |
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288 | 288 | m_tickCount(5) |
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289 | 289 | { |
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290 | 290 | m_format = "dd-MM-yyyy\nh:mm"; |
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291 | 291 | } |
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292 | 292 | |
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293 | 293 | QDateTimeAxisPrivate::~QDateTimeAxisPrivate() |
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294 | 294 | { |
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295 | 295 | |
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296 | 296 | } |
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297 | 297 | |
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298 | 298 | void QDateTimeAxisPrivate::handleDomainUpdated() |
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299 | 299 | { |
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300 | 300 | Q_Q(QDateTimeAxis); |
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301 | 301 | Domain* domain = qobject_cast<Domain*>(sender()); |
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302 | 302 | Q_ASSERT(domain); |
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303 | 303 | |
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304 | 304 | if(orientation()==Qt::Horizontal){ |
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305 | 305 | q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX())); |
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306 | 306 | }else if(orientation()==Qt::Vertical){ |
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307 | 307 | q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY())); |
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308 | 308 | } |
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309 | 309 | } |
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310 | 310 | |
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311 | 311 | |
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312 | 312 | void QDateTimeAxisPrivate::setMin(const QVariant &min) |
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313 | 313 | { |
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314 | 314 | Q_Q(QDateTimeAxis); |
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315 | 315 | if (min.canConvert(QVariant::DateTime)) |
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316 | 316 | q->setMin(min.toDateTime()); |
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317 | 317 | } |
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318 | 318 | |
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319 | 319 | void QDateTimeAxisPrivate::setMax(const QVariant &max) |
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320 | 320 | { |
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321 | 321 | |
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322 | 322 | Q_Q(QDateTimeAxis); |
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323 | 323 | if (max.canConvert(QVariant::DateTime)) |
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324 | 324 | q->setMax(max.toDateTime()); |
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325 | 325 | } |
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326 | 326 | |
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327 | 327 | void QDateTimeAxisPrivate::setRange(const QVariant &min, const QVariant &max) |
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328 | 328 | { |
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329 | 329 | Q_Q(QDateTimeAxis); |
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330 | 330 | if (min.canConvert(QVariant::DateTime) && max.canConvert(QVariant::DateTime)) |
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331 | 331 | q->setRange(min.toDateTime(), max.toDateTime()); |
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332 | 332 | } |
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333 | 333 | |
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334 | 334 | ChartAxis* QDateTimeAxisPrivate::createGraphics(ChartPresenter* presenter) |
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335 | 335 | { |
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336 | 336 | Q_Q(QDateTimeAxis); |
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337 | 337 | if(m_orientation == Qt::Vertical){ |
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338 | 338 | return new ChartDateTimeAxisY(q,presenter); |
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339 | 339 | }else{ |
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340 | 340 | return new ChartDateTimeAxisX(q,presenter); |
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341 | 341 | } |
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342 | 342 | |
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343 | 343 | } |
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344 | 344 | |
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345 | 345 | void QDateTimeAxisPrivate::intializeDomain(Domain* domain) |
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346 | 346 | { |
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347 | 347 | Q_Q(QDateTimeAxis); |
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348 | 348 | if(m_max == m_min) { |
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349 | 349 | if(m_orientation==Qt::Vertical){ |
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350 | 350 | q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY())); |
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351 | 351 | }else{ |
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352 | 352 | q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX())); |
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353 | 353 | } |
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354 | 354 | } else { |
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355 | 355 | if(m_orientation==Qt::Vertical){ |
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356 | 356 | domain->setRangeY(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch()); |
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357 | 357 | }else{ |
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358 | 358 | domain->setRangeX(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch()); |
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359 | 359 | } |
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360 | 360 | } |
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361 | 361 | } |
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362 | 362 | |
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363 | 363 | #include "moc_qdatetimeaxis.cpp" |
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364 | 364 | #include "moc_qdatetimeaxis_p.cpp" |
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365 | 365 | |
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366 | 366 | QTCOMMERCIALCHART_END_NAMESPACE |
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