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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 "declarativechart.h" |
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22 | 22 | #include <QPainter> |
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23 | 23 | #include "declarativelineseries.h" |
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24 | 24 | #include "declarativeareaseries.h" |
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25 | 25 | #include "declarativebarseries.h" |
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26 | 26 | #include "declarativepieseries.h" |
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27 | 27 | #include "declarativesplineseries.h" |
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28 | 28 | #include "declarativescatterseries.h" |
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29 | 29 | |
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30 | 30 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
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31 | 31 | |
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32 | 32 | /*! |
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33 | 33 | \qmlclass ChartView DeclarativeChart |
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34 | 34 | |
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35 | 35 | ChartView element is the parent that is responsible for showing different chart series types. |
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36 | 36 | |
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37 | 37 | \section1 Example Usage |
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38 | 38 | |
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39 | 39 | \beginfloatleft |
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40 | 40 | \image demos_qmlchart1.png |
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41 | 41 | \endfloat |
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42 | 42 | \clearfloat |
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43 | 43 | */ |
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44 | 44 | |
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45 | 45 | /*! |
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46 | 46 | \qmlproperty Theme ChartView::theme |
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47 | 47 | Theme defines the visual appearance of the chart, including for example colors, fonts, line |
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48 | 48 | widths and chart background. |
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49 | 49 | */ |
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50 | 50 | |
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51 | 51 | /*! |
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52 | 52 | \qmlproperty Animation ChartView::animation |
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53 | 53 | Animation configuration of the chart. One of ChartView.NoAnimation, ChartView.GridAxisAnimations, |
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54 | 54 | ChartView.SeriesAnimations or ChartView.AllAnimations. |
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55 | 55 | */ |
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56 | 56 | |
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57 | 57 | /*! |
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58 | 58 | \qmlproperty string ChartView::title |
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59 | 59 | The title of the chart, shown on top of the chart. |
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60 | \sa ChartView::titleColor | |
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60 | 61 | */ |
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61 | 62 | |
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62 | 63 | /*! |
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63 | 64 | \qmlproperty string ChartView::titleColor |
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64 | 65 | The color of the title text. |
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65 | 66 | */ |
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66 | 67 | |
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67 | 68 | /*! |
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68 | 69 | \qmlproperty Axis ChartView::axisX |
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69 | 70 | The x-axis of the chart. |
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70 | 71 | */ |
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71 | 72 | |
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72 | 73 | /*! |
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73 | 74 | \qmlproperty Axis ChartView::axisY |
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74 | 75 | The default y-axis of the chart. |
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75 | 76 | */ |
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76 | 77 | |
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77 | 78 | /*! |
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79 | \qmlproperty Legend ChartView::legend | |
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80 | The legend of the chart. Legend lists all the series, pie slices and bar sets added on the chart. | |
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81 | */ | |
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82 | ||
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83 | /*! | |
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84 | \qmlproperty int ChartView::count | |
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85 | The count of series added to the chart. | |
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86 | */ | |
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87 | ||
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88 | /*! | |
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89 | \qmlproperty color ChartView::backgroundColor | |
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90 | The color of the chart's background. By default background color is defined by chart theme. | |
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91 | \sa ChartView::theme | |
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92 | */ | |
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93 | ||
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94 | /*! | |
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95 | \qmlproperty bool ChartView::dropShadowEnabled | |
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96 | The chart's border drop shadow. Set to true to enable drop shadow. | |
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97 | */ | |
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98 | ||
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99 | /*! | |
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78 | 100 | \qmlmethod Axis ChartView::axisY(QAbstractSeries *series) |
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79 | 101 | The y-axis of the series. This is the same as the default y-axis of the chart, unless you have |
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80 | 102 | explicitly defined the series to have a non-default y-axis. |
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81 | 103 | */ |
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82 | 104 | |
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83 | 105 | DeclarativeChart::DeclarativeChart(QDeclarativeItem *parent) |
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84 | 106 | : QDeclarativeItem(parent), |
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85 | 107 | m_chart(new QChart(this)) |
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86 | 108 | { |
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87 | 109 | setFlag(QGraphicsItem::ItemHasNoContents, false); |
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88 | 110 | // m_chart->axisX()->setNiceNumbersEnabled(false); |
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89 | 111 | } |
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90 | 112 | |
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91 | 113 | DeclarativeChart::~DeclarativeChart() |
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92 | 114 | { |
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93 | 115 | delete m_chart; |
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94 | 116 | } |
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95 | 117 | |
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96 | 118 | void DeclarativeChart::childEvent(QChildEvent *event) |
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97 | 119 | { |
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98 | 120 | if (event->type() == QEvent::ChildAdded) { |
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99 | 121 | if (qobject_cast<QAbstractSeries *>(event->child())) { |
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100 | 122 | m_chart->addSeries(qobject_cast<QAbstractSeries *>(event->child())); |
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101 | 123 | } |
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102 | 124 | } |
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103 | 125 | } |
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104 | 126 | |
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105 | 127 | void DeclarativeChart::componentComplete() |
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106 | 128 | { |
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107 | 129 | foreach(QObject *child, children()) { |
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108 | 130 | if (qobject_cast<QAbstractSeries *>(child)) { |
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109 | 131 | // qDebug() << "DeclarativeChart::componentComplete(), add: " << child; |
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110 | 132 | // TODO: how about optional y-axis? |
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111 | 133 | m_chart->addSeries(qobject_cast<QAbstractSeries *>(child)); |
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112 | 134 | } |
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113 | 135 | } |
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114 | 136 | QDeclarativeItem::componentComplete(); |
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115 | 137 | } |
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116 | 138 | |
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117 | 139 | void DeclarativeChart::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) |
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118 | 140 | { |
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119 | 141 | // qDebug() << "DeclarativeChart::geometryChanged" << newGeometry.width() << newGeometry.height(); |
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120 | 142 | if (newGeometry.isValid()) { |
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121 | 143 | if (newGeometry.width() > 0 && newGeometry.height() > 0) { |
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122 | 144 | m_chart->resize(newGeometry.width(), newGeometry.height()); |
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123 | 145 | } |
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124 | 146 | } |
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125 | 147 | QDeclarativeItem::geometryChanged(newGeometry, oldGeometry); |
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126 | 148 | } |
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127 | 149 | |
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128 | 150 | void DeclarativeChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) |
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129 | 151 | { |
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130 | 152 | Q_UNUSED(option) |
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131 | 153 | Q_UNUSED(widget) |
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132 | 154 | |
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133 | 155 | // TODO: optimized? |
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134 | 156 | painter->setRenderHint(QPainter::Antialiasing, true); |
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135 | 157 | } |
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136 | 158 | |
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137 | 159 | void DeclarativeChart::setTheme(DeclarativeChart::Theme theme) |
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138 | 160 | { |
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139 | 161 | QChart::ChartTheme chartTheme = (QChart::ChartTheme) theme; |
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140 | 162 | if (chartTheme != m_chart->theme()) { |
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141 | 163 | m_chart->setTheme(chartTheme); |
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142 | 164 | themeChanged(); |
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143 | 165 | } |
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144 | 166 | } |
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145 | 167 | |
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146 | 168 | DeclarativeChart::Theme DeclarativeChart::theme() |
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147 | 169 | { |
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148 | 170 | return (DeclarativeChart::Theme) m_chart->theme(); |
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149 | 171 | } |
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150 | 172 | |
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151 | 173 | void DeclarativeChart::setAnimationOptions(DeclarativeChart::Animation animations) |
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152 | 174 | { |
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153 | 175 | QChart::AnimationOption animationOptions = (QChart::AnimationOption) animations; |
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154 | 176 | if (animationOptions != m_chart->animationOptions()) { |
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155 | 177 | m_chart->setAnimationOptions(animationOptions); |
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156 | 178 | animationOptionsChanged(); |
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157 | 179 | } |
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158 | 180 | } |
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159 | 181 | |
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160 | 182 | DeclarativeChart::Animation DeclarativeChart::animationOptions() |
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161 | 183 | { |
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162 | 184 | if (m_chart->animationOptions().testFlag(QChart::AllAnimations)) |
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163 | 185 | return DeclarativeChart::AllAnimations; |
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164 | 186 | else if (m_chart->animationOptions().testFlag(QChart::GridAxisAnimations)) |
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165 | 187 | return DeclarativeChart::GridAxisAnimations; |
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166 | 188 | else if (m_chart->animationOptions().testFlag(QChart::SeriesAnimations)) |
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167 | 189 | return DeclarativeChart::SeriesAnimations; |
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168 | 190 | else |
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169 | 191 | return DeclarativeChart::NoAnimation; |
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170 | 192 | } |
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171 | 193 | |
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172 | 194 | void DeclarativeChart::setTitle(QString title) |
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173 | 195 | { |
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174 | 196 | if (title != m_chart->title()) { |
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175 | 197 | m_chart->setTitle(title); |
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176 | 198 | emit titleChanged(); |
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177 | 199 | } |
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178 | 200 | } |
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179 | 201 | QString DeclarativeChart::title() |
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180 | 202 | { |
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181 | 203 | return m_chart->title(); |
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182 | 204 | } |
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183 | 205 | |
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184 | 206 | QAxis *DeclarativeChart::axisX() |
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185 | 207 | { |
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186 | 208 | return m_chart->axisX(); |
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187 | 209 | } |
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188 | 210 | |
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189 | 211 | QAxis *DeclarativeChart::axisY(QAbstractSeries *series) |
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190 | 212 | { |
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191 | 213 | return m_chart->axisY(series); |
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192 | 214 | } |
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193 | 215 | |
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194 | 216 | QLegend *DeclarativeChart::legend() |
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195 | 217 | { |
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196 | 218 | return m_chart->legend(); |
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197 | 219 | } |
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198 | 220 | |
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199 | 221 | QVariantList DeclarativeChart::axisXLabels() |
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200 | 222 | { |
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201 | 223 | QVariantList labels; |
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202 | 224 | foreach (qreal value, m_chart->axisX()->categories()->values()) { |
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203 | 225 | labels.append(value); |
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204 | 226 | labels.append(m_chart->axisX()->categories()->label(value)); |
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205 | 227 | } |
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206 | 228 | return labels; |
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207 | 229 | } |
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208 | 230 | |
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209 | 231 | void DeclarativeChart::setAxisXLabels(QVariantList list) |
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210 | 232 | { |
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211 | 233 | QVariant value(QVariant::Invalid); |
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212 | 234 | foreach (QVariant element, list) { |
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213 | 235 | if (value.isValid() && element.type() == QVariant::String) { |
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214 | 236 | m_chart->axisX()->categories()->insert(value.toDouble(), element.toString()); |
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215 | 237 | value = QVariant(QVariant::Invalid); |
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216 | 238 | } else { |
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217 | 239 | if (element.canConvert(QVariant::Double)) |
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218 | 240 | value = element; |
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219 | 241 | } |
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220 | 242 | } |
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221 | 243 | emit axisLabelsChanged(); |
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222 | 244 | } |
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223 | 245 | |
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224 | 246 | void DeclarativeChart::setTitleColor(QColor color) |
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225 | 247 | { |
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226 | 248 | QBrush b = m_chart->titleBrush(); |
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227 | 249 | if (color != b.color()) { |
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228 | 250 | b.setColor(color); |
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229 | 251 | m_chart->setTitleBrush(b); |
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230 | 252 | emit titleColorChanged(); |
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231 | 253 | } |
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232 | 254 | } |
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233 | 255 | |
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234 | 256 | QColor DeclarativeChart::titleColor() |
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235 | 257 | { |
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236 | 258 | return m_chart->titleBrush().color(); |
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237 | 259 | } |
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238 | 260 | |
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239 | 261 | void DeclarativeChart::setBackgroundColor(QColor color) |
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240 | 262 | { |
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241 | 263 | QBrush b = m_chart->backgroundBrush(); |
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242 | if (color != b.color()) { | |
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264 | if (b.style() != Qt::SolidPattern || color != b.color()) { | |
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265 | b.setStyle(Qt::SolidPattern); | |
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243 | 266 | b.setColor(color); |
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244 | 267 | m_chart->setBackgroundBrush(b); |
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245 | 268 | emit backgroundColorChanged(); |
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246 | 269 | } |
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247 | 270 | } |
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248 | 271 | |
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249 | 272 | QColor DeclarativeChart::backgroundColor() |
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250 | 273 | { |
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251 | 274 | return m_chart->backgroundBrush().color(); |
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252 | 275 | } |
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253 | 276 | |
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254 | 277 | int DeclarativeChart::count() |
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255 | 278 | { |
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256 | 279 | return m_chart->series().count(); |
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257 | 280 | } |
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258 | 281 | |
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259 | 282 | void DeclarativeChart::setDropShadowEnabled(bool enabled) |
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260 | 283 | { |
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261 | 284 | if (enabled != m_chart->isDropShadowEnabled()) { |
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262 | 285 | m_chart->setDropShadowEnabled(enabled); |
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263 | 286 | dropShadowEnabledChanged(enabled); |
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264 | 287 | } |
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265 | 288 | } |
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266 | 289 | |
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267 | 290 | bool DeclarativeChart::dropShadowEnabled() |
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268 | 291 | { |
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269 | 292 | return m_chart->isDropShadowEnabled(); |
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270 | 293 | } |
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271 | 294 | |
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272 | 295 | void DeclarativeChart::zoom(qreal factor) |
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273 | 296 | { |
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274 | 297 | m_chart->zoom(factor); |
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275 | 298 | } |
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276 | 299 | |
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277 | 300 | void DeclarativeChart::scrollLeft(qreal pixels) |
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278 | 301 | { |
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279 | 302 | m_chart->scroll(QPointF(pixels, 0)); |
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280 | 303 | } |
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281 | 304 | |
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282 | 305 | void DeclarativeChart::scrollRight(qreal pixels) |
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283 | 306 | { |
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284 | 307 | m_chart->scroll(QPointF(-pixels, 0)); |
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285 | 308 | } |
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286 | 309 | |
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287 | 310 | void DeclarativeChart::scrollUp(qreal pixels) |
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288 | 311 | { |
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289 | 312 | m_chart->scroll(QPointF(0, pixels)); |
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290 | 313 | } |
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291 | 314 | |
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292 | 315 | void DeclarativeChart::scrollDown(qreal pixels) |
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293 | 316 | { |
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294 | 317 | m_chart->scroll(QPointF(0, -pixels)); |
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295 | 318 | } |
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296 | 319 | |
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297 | 320 | QAbstractSeries *DeclarativeChart::series(int index) |
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298 | 321 | { |
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299 | 322 | if (index < m_chart->series().count()) { |
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300 | 323 | return m_chart->series().at(index); |
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301 | 324 | } |
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302 | 325 | return 0; |
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303 | 326 | } |
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304 | 327 | |
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305 | 328 | QAbstractSeries *DeclarativeChart::series(QString seriesName) |
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306 | 329 | { |
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307 | 330 | foreach(QAbstractSeries *series, m_chart->series()) { |
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308 | 331 | if (series->name() == seriesName) |
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309 | 332 | return series; |
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310 | 333 | } |
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311 | 334 | return 0; |
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312 | 335 | } |
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313 | 336 | |
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314 | 337 | QAbstractSeries *DeclarativeChart::createSeries(DeclarativeChart::SeriesType type, QString name) |
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315 | 338 | { |
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316 | 339 | QAbstractSeries *series = 0; |
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317 | 340 | switch (type) { |
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318 | 341 | case DeclarativeChart::SeriesTypeLine: |
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319 | 342 | series = new DeclarativeLineSeries(); |
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320 | 343 | break; |
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321 | 344 | case DeclarativeChart::SeriesTypeArea: |
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322 | 345 | series = new DeclarativeAreaSeries(); |
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323 | 346 | break; |
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324 | 347 | case DeclarativeChart::SeriesTypeBar: |
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325 | 348 | series = new DeclarativeBarSeries(); |
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326 | 349 | break; |
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327 | 350 | case DeclarativeChart::SeriesTypeStackedBar: |
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328 | 351 | // TODO |
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329 | 352 | break; |
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330 | 353 | case DeclarativeChart::SeriesTypePercentBar: |
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331 | 354 | // TODO |
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332 | 355 | break; |
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333 | 356 | case DeclarativeChart::SeriesTypeGroupedBar: |
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334 | 357 | series = new DeclarativeGroupedBarSeries(); |
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335 | 358 | break; |
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336 | 359 | case DeclarativeChart::SeriesTypePie: |
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337 | 360 | series = new DeclarativePieSeries(); |
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338 | 361 | break; |
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339 | 362 | case DeclarativeChart::SeriesTypeScatter: |
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340 | 363 | series = new DeclarativeScatterSeries(); |
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341 | 364 | break; |
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342 | 365 | case DeclarativeChart::SeriesTypeSpline: |
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343 | 366 | series = new DeclarativeSplineSeries(); |
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344 | 367 | break; |
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345 | 368 | default: |
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346 | 369 | qWarning() << "Illegal series type"; |
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347 | 370 | } |
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348 | 371 | series->setName(name); |
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349 | 372 | m_chart->addSeries(series); |
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350 | 373 | return series; |
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351 | 374 | } |
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352 | 375 | |
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353 | 376 | #include "moc_declarativechart.cpp" |
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354 | 377 | |
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355 | 378 | QTCOMMERCIALCHART_END_NAMESPACE |
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