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1 | /**************************************************************************** |
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1 | /**************************************************************************** | |
2 | ** |
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2 | ** | |
3 | ** Copyright (C) 2013 Digia Plc |
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3 | ** Copyright (C) 2013 Digia Plc | |
4 | ** All rights reserved. |
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4 | ** All rights reserved. | |
5 | ** For any questions to Digia, please use contact form at http://qt.digia.com |
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5 | ** For any questions to Digia, please use contact form at http://qt.digia.com | |
6 | ** |
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6 | ** | |
7 | ** This file is part of the Qt Enterprise Charts Add-on. |
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7 | ** This file is part of the Qt Enterprise Charts Add-on. | |
8 | ** |
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8 | ** | |
9 | ** $QT_BEGIN_LICENSE$ |
|
9 | ** $QT_BEGIN_LICENSE$ | |
10 | ** Licensees holding valid Qt Enterprise licenses may use this file in |
|
10 | ** Licensees holding valid Qt Enterprise licenses may use this file in | |
11 | ** accordance with the Qt Enterprise License Agreement provided with the |
|
11 | ** accordance with the Qt Enterprise License Agreement provided with the | |
12 | ** Software or, alternatively, in accordance with the terms contained in |
|
12 | ** Software or, alternatively, in accordance with the terms contained in | |
13 | ** a written agreement between you and Digia. |
|
13 | ** a written agreement between you and Digia. | |
14 | ** |
|
14 | ** | |
15 | ** If you have questions regarding the use of this file, please use |
|
15 | ** If you have questions regarding the use of this file, please use | |
16 | ** contact form at http://qt.digia.com |
|
16 | ** contact form at http://qt.digia.com | |
17 | ** $QT_END_LICENSE$ |
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17 | ** $QT_END_LICENSE$ | |
18 | ** |
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18 | ** | |
19 | ****************************************************************************/ |
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19 | ****************************************************************************/ | |
20 |
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20 | |||
21 | #include "qchartview.h" |
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21 | #include "qchartview.h" | |
22 | #include "qchartview_p.h" |
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22 | #include "qchartview_p.h" | |
23 | #include "qchart_p.h" |
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23 | #include "qchart_p.h" | |
24 | #include <QGraphicsScene> |
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24 | #include <QGraphicsScene> | |
25 | #include <QRubberBand> |
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25 | #include <QRubberBand> | |
26 |
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26 | |||
27 | /*! |
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27 | /*! | |
28 | \enum QChartView::RubberBand |
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28 | \enum QChartView::RubberBand | |
29 |
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29 | |||
30 | This enum describes the different types of rubber bands that can be used for zoom rect selection |
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30 | This enum describes the different types of rubber bands that can be used for zoom rect selection | |
31 |
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31 | |||
32 | \value NoRubberBand |
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32 | \value NoRubberBand | |
33 | \value VerticalRubberBand |
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33 | \value VerticalRubberBand | |
34 | \value HorizonalRubberBand |
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34 | \value HorizonalRubberBand | |
35 | \value RectangleRubberBand |
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35 | \value RectangleRubberBand | |
36 | */ |
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36 | */ | |
37 |
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37 | |||
38 | /*! |
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38 | /*! | |
39 | \class QChartView |
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39 | \class QChartView | |
40 | \brief Standalone charting widget. |
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40 | \brief Standalone charting widget. | |
41 |
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41 | |||
42 | QChartView is a standalone widget that can display charts. It does not require separate |
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42 | QChartView is a standalone widget that can display charts. It does not require separate | |
43 | QGraphicsScene to work. If you want to display a chart in your existing QGraphicsScene, |
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43 | QGraphicsScene to work. If you want to display a chart in your existing QGraphicsScene, | |
44 | you need to use the QChart (or QPolarChart) class instead. |
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44 | you need to use the QChart (or QPolarChart) class instead. | |
45 |
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45 | |||
46 | \sa QChart, QPolarChart |
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46 | \sa QChart, QPolarChart | |
47 | */ |
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47 | */ | |
48 |
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48 | |||
49 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
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49 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
50 |
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50 | |||
51 | /*! |
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51 | /*! | |
52 | Constructs a chartView object with parent \a parent. |
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52 | Constructs a chartView object with parent \a parent. | |
53 | */ |
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53 | */ | |
54 |
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54 | |||
55 | QChartView::QChartView(QWidget *parent) |
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55 | QChartView::QChartView(QWidget *parent) | |
56 | : QGraphicsView(parent), |
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56 | : QGraphicsView(parent), | |
57 | d_ptr(new QChartViewPrivate(this)) |
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57 | d_ptr(new QChartViewPrivate(this)) | |
58 | { |
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58 | { | |
59 |
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59 | |||
60 | } |
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60 | } | |
61 |
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61 | |||
62 | /*! |
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62 | /*! | |
63 | Constructs a chartview object with parent \a parent to display a \a chart. |
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63 | Constructs a chartview object with parent \a parent to display a \a chart. | |
64 | Ownership of the \a chart is passed to chartview. |
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64 | Ownership of the \a chart is passed to chartview. | |
65 | */ |
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65 | */ | |
66 |
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66 | |||
67 | QChartView::QChartView(QChart *chart, QWidget *parent) |
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67 | QChartView::QChartView(QChart *chart, QWidget *parent) | |
68 | : QGraphicsView(parent), |
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68 | : QGraphicsView(parent), | |
69 | d_ptr(new QChartViewPrivate(this, chart)) |
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69 | d_ptr(new QChartViewPrivate(this, chart)) | |
70 | { |
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70 | { | |
71 |
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71 | |||
72 | } |
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72 | } | |
73 |
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73 | |||
74 |
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74 | |||
75 | /*! |
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75 | /*! | |
76 | Destroys the chartview object and the associated chart. |
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76 | Destroys the chartview object and the associated chart. | |
77 | */ |
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77 | */ | |
78 | QChartView::~QChartView() |
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78 | QChartView::~QChartView() | |
79 | { |
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79 | { | |
80 | } |
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80 | } | |
81 |
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81 | |||
82 | /*! |
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82 | /*! | |
83 | Returns the pointer to the associated chart. |
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83 | Returns the pointer to the associated chart. | |
84 | */ |
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84 | */ | |
85 | QChart *QChartView::chart() const |
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85 | QChart *QChartView::chart() const | |
86 | { |
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86 | { | |
87 | return d_ptr->m_chart; |
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87 | return d_ptr->m_chart; | |
88 | } |
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88 | } | |
89 |
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89 | |||
90 | /*! |
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90 | /*! | |
91 | Sets the current chart to \a chart. Ownership of the new chart is passed to chartview |
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91 | Sets the current chart to \a chart. Ownership of the new chart is passed to chartview | |
92 | and ownership of the previous chart is released. |
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92 | and ownership of the previous chart is released. | |
93 |
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93 | |||
94 | To avoid memory leaks users need to make sure the previous chart is deleted. |
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94 | To avoid memory leaks users need to make sure the previous chart is deleted. | |
95 | */ |
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95 | */ | |
96 |
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96 | |||
97 | void QChartView::setChart(QChart *chart) |
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97 | void QChartView::setChart(QChart *chart) | |
98 | { |
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98 | { | |
99 | d_ptr->setChart(chart); |
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99 | d_ptr->setChart(chart); | |
100 | } |
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100 | } | |
101 |
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101 | |||
102 | /*! |
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102 | /*! | |
103 | Sets the rubber band flags to \a rubberBand. |
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103 | Sets the rubber band flags to \a rubberBand. | |
104 | Selected flags determine the way zooming is performed. |
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104 | Selected flags determine the way zooming is performed. | |
105 |
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105 | |||
106 | \note Rubber band zooming is not supported for polar charts. |
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106 | \note Rubber band zooming is not supported for polar charts. | |
107 | */ |
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107 | */ | |
108 | void QChartView::setRubberBand(const RubberBands &rubberBand) |
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108 | void QChartView::setRubberBand(const RubberBands &rubberBand) | |
109 | { |
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109 | { | |
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110 | #ifndef QT_NO_RUBBERBAND | |||
110 | d_ptr->m_rubberBandFlags = rubberBand; |
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111 | d_ptr->m_rubberBandFlags = rubberBand; | |
111 |
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112 | |||
112 | if (!d_ptr->m_rubberBandFlags) { |
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113 | if (!d_ptr->m_rubberBandFlags) { | |
113 | delete d_ptr->m_rubberBand; |
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114 | delete d_ptr->m_rubberBand; | |
114 | d_ptr->m_rubberBand = 0; |
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115 | d_ptr->m_rubberBand = 0; | |
115 | return; |
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116 | return; | |
116 | } |
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117 | } | |
117 |
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118 | |||
118 | if (!d_ptr->m_rubberBand) { |
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119 | if (!d_ptr->m_rubberBand) { | |
119 | d_ptr->m_rubberBand = new QRubberBand(QRubberBand::Rectangle, this); |
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120 | d_ptr->m_rubberBand = new QRubberBand(QRubberBand::Rectangle, this); | |
120 | d_ptr->m_rubberBand->setEnabled(true); |
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121 | d_ptr->m_rubberBand->setEnabled(true); | |
121 | } |
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122 | } | |
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123 | #else | |||
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124 | Q_UNUSED(rubberBand); | |||
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125 | qWarning("Unable to set rubber band because Qt is configured without it."); | |||
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126 | #endif | |||
122 | } |
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127 | } | |
123 |
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128 | |||
124 | /*! |
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129 | /*! | |
125 | Returns the rubber band flags that are currently being used by the widget. |
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130 | Returns the rubber band flags that are currently being used by the widget. | |
126 | */ |
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131 | */ | |
127 | QChartView::RubberBands QChartView::rubberBand() const |
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132 | QChartView::RubberBands QChartView::rubberBand() const | |
128 | { |
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133 | { | |
129 | return d_ptr->m_rubberBandFlags; |
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134 | return d_ptr->m_rubberBandFlags; | |
130 | } |
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135 | } | |
131 |
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136 | |||
132 | /*! |
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137 | /*! | |
133 | If Left mouse button is pressed and the rubber band is enabled the \a event is accepted and the rubber band is displayed on the screen allowing the user to select the zoom area. |
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138 | If Left mouse button is pressed and the rubber band is enabled the \a event is accepted and the rubber band is displayed on the screen allowing the user to select the zoom area. | |
134 | If different mouse button is pressed and/or the rubber band is disabled then the \a event is passed to QGraphicsView::mousePressEvent() implementation. |
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139 | If different mouse button is pressed and/or the rubber band is disabled then the \a event is passed to QGraphicsView::mousePressEvent() implementation. | |
135 | */ |
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140 | */ | |
136 | void QChartView::mousePressEvent(QMouseEvent *event) |
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141 | void QChartView::mousePressEvent(QMouseEvent *event) | |
137 | { |
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142 | { | |
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143 | #ifndef QT_NO_RUBBERBAND | |||
138 | QRectF plotArea = d_ptr->m_chart->plotArea(); |
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144 | QRectF plotArea = d_ptr->m_chart->plotArea(); | |
139 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isEnabled() |
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145 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isEnabled() | |
140 | && event->button() == Qt::LeftButton && plotArea.contains(event->pos())) { |
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146 | && event->button() == Qt::LeftButton && plotArea.contains(event->pos())) { | |
141 | d_ptr->m_rubberBandOrigin = event->pos(); |
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147 | d_ptr->m_rubberBandOrigin = event->pos(); | |
142 | d_ptr->m_rubberBand->setGeometry(QRect(d_ptr->m_rubberBandOrigin, QSize())); |
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148 | d_ptr->m_rubberBand->setGeometry(QRect(d_ptr->m_rubberBandOrigin, QSize())); | |
143 | d_ptr->m_rubberBand->show(); |
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149 | d_ptr->m_rubberBand->show(); | |
144 | event->accept(); |
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150 | event->accept(); | |
145 | } else { |
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151 | } else { | |
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152 | #endif | |||
146 | QGraphicsView::mousePressEvent(event); |
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153 | QGraphicsView::mousePressEvent(event); | |
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154 | #ifndef QT_NO_RUBBERBAND | |||
147 | } |
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155 | } | |
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156 | #endif | |||
148 | } |
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157 | } | |
149 |
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158 | |||
150 | /*! |
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159 | /*! | |
151 | If the rubber band rectange has been displayed in pressEvent then \a event data is used to update the rubber band geometry. |
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160 | If the rubber band rectange has been displayed in pressEvent then \a event data is used to update the rubber band geometry. | |
152 | Otherwise the default QGraphicsView::mouseMoveEvent implementation is called. |
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161 | Otherwise the default QGraphicsView::mouseMoveEvent implementation is called. | |
153 | */ |
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162 | */ | |
154 | void QChartView::mouseMoveEvent(QMouseEvent *event) |
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163 | void QChartView::mouseMoveEvent(QMouseEvent *event) | |
155 | { |
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164 | { | |
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165 | #ifndef QT_NO_RUBBERBAND | |||
156 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isVisible()) { |
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166 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isVisible()) { | |
157 | QRect rect = d_ptr->m_chart->plotArea().toRect(); |
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167 | QRect rect = d_ptr->m_chart->plotArea().toRect(); | |
158 | int width = event->pos().x() - d_ptr->m_rubberBandOrigin.x(); |
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168 | int width = event->pos().x() - d_ptr->m_rubberBandOrigin.x(); | |
159 | int height = event->pos().y() - d_ptr->m_rubberBandOrigin.y(); |
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169 | int height = event->pos().y() - d_ptr->m_rubberBandOrigin.y(); | |
160 | if (!d_ptr->m_rubberBandFlags.testFlag(VerticalRubberBand)) { |
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170 | if (!d_ptr->m_rubberBandFlags.testFlag(VerticalRubberBand)) { | |
161 | d_ptr->m_rubberBandOrigin.setY(rect.top()); |
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171 | d_ptr->m_rubberBandOrigin.setY(rect.top()); | |
162 | height = rect.height(); |
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172 | height = rect.height(); | |
163 | } |
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173 | } | |
164 | if (!d_ptr->m_rubberBandFlags.testFlag(HorizonalRubberBand)) { |
|
174 | if (!d_ptr->m_rubberBandFlags.testFlag(HorizonalRubberBand)) { | |
165 | d_ptr->m_rubberBandOrigin.setX(rect.left()); |
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175 | d_ptr->m_rubberBandOrigin.setX(rect.left()); | |
166 | width = rect.width(); |
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176 | width = rect.width(); | |
167 | } |
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177 | } | |
168 | d_ptr->m_rubberBand->setGeometry(QRect(d_ptr->m_rubberBandOrigin.x(), d_ptr->m_rubberBandOrigin.y(), width, height).normalized()); |
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178 | d_ptr->m_rubberBand->setGeometry(QRect(d_ptr->m_rubberBandOrigin.x(), d_ptr->m_rubberBandOrigin.y(), width, height).normalized()); | |
169 | } else { |
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179 | } else { | |
|
180 | #endif | |||
170 | QGraphicsView::mouseMoveEvent(event); |
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181 | QGraphicsView::mouseMoveEvent(event); | |
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182 | #ifndef QT_NO_RUBBERBAND | |||
171 | } |
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183 | } | |
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184 | #endif | |||
172 | } |
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185 | } | |
173 |
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186 | |||
174 | /*! |
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187 | /*! | |
175 | If left mouse button is released and the rubber band is enabled then \a event is accepted and |
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188 | If left mouse button is released and the rubber band is enabled then \a event is accepted and | |
176 | the view is zoomed into the rect specified by the rubber band. |
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189 | the view is zoomed into the rect specified by the rubber band. | |
177 | If it is a right mouse button \a event then the view is zoomed out. |
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190 | If it is a right mouse button \a event then the view is zoomed out. | |
178 | */ |
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191 | */ | |
179 | void QChartView::mouseReleaseEvent(QMouseEvent *event) |
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192 | void QChartView::mouseReleaseEvent(QMouseEvent *event) | |
180 | { |
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193 | { | |
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194 | #ifndef QT_NO_RUBBERBAND | |||
181 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isVisible()) { |
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195 | if (d_ptr->m_rubberBand && d_ptr->m_rubberBand->isVisible()) { | |
182 | if (event->button() == Qt::LeftButton) { |
|
196 | if (event->button() == Qt::LeftButton) { | |
183 | d_ptr->m_rubberBand->hide(); |
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197 | d_ptr->m_rubberBand->hide(); | |
184 | QRectF rect = d_ptr->m_rubberBand->geometry(); |
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198 | QRectF rect = d_ptr->m_rubberBand->geometry(); | |
185 | // Since plotArea uses QRectF and rubberband uses QRect, we can't just blindly use |
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199 | // Since plotArea uses QRectF and rubberband uses QRect, we can't just blindly use | |
186 | // rubberband's dimensions for vertical and horizontal rubberbands, where one |
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200 | // rubberband's dimensions for vertical and horizontal rubberbands, where one | |
187 | // dimension must match the corresponding plotArea dimension exactly. |
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201 | // dimension must match the corresponding plotArea dimension exactly. | |
188 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand) { |
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202 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand) { | |
189 | rect.setX(d_ptr->m_chart->plotArea().x()); |
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203 | rect.setX(d_ptr->m_chart->plotArea().x()); | |
190 | rect.setWidth(d_ptr->m_chart->plotArea().width()); |
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204 | rect.setWidth(d_ptr->m_chart->plotArea().width()); | |
191 | } else if (d_ptr->m_rubberBandFlags == HorizonalRubberBand) { |
|
205 | } else if (d_ptr->m_rubberBandFlags == HorizonalRubberBand) { | |
192 | rect.setY(d_ptr->m_chart->plotArea().y()); |
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206 | rect.setY(d_ptr->m_chart->plotArea().y()); | |
193 | rect.setHeight(d_ptr->m_chart->plotArea().height()); |
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207 | rect.setHeight(d_ptr->m_chart->plotArea().height()); | |
194 | } |
|
208 | } | |
195 | d_ptr->m_chart->zoomIn(rect); |
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209 | d_ptr->m_chart->zoomIn(rect); | |
196 | event->accept(); |
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210 | event->accept(); | |
197 | } |
|
211 | } | |
198 |
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212 | |||
199 | if (event->button() == Qt::RightButton) { |
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213 | if (event->button() == Qt::RightButton) { | |
200 | // If vertical or horizontal rubberband mode, restrict zoom out to specified axis. |
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214 | // If vertical or horizontal rubberband mode, restrict zoom out to specified axis. | |
201 | // Since there is no suitable API for that, use zoomIn with rect bigger than the |
|
215 | // Since there is no suitable API for that, use zoomIn with rect bigger than the | |
202 | // plot area. |
|
216 | // plot area. | |
203 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand |
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217 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand | |
204 | || d_ptr->m_rubberBandFlags == HorizonalRubberBand) { |
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218 | || d_ptr->m_rubberBandFlags == HorizonalRubberBand) { | |
205 | QRectF rect = d_ptr->m_chart->plotArea(); |
|
219 | QRectF rect = d_ptr->m_chart->plotArea(); | |
206 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand) { |
|
220 | if (d_ptr->m_rubberBandFlags == VerticalRubberBand) { | |
207 | qreal adjustment = rect.height() / 2; |
|
221 | qreal adjustment = rect.height() / 2; | |
208 | rect.adjust(0, -adjustment, 0, adjustment); |
|
222 | rect.adjust(0, -adjustment, 0, adjustment); | |
209 | } else if (d_ptr->m_rubberBandFlags == HorizonalRubberBand) { |
|
223 | } else if (d_ptr->m_rubberBandFlags == HorizonalRubberBand) { | |
210 | qreal adjustment = rect.width() / 2; |
|
224 | qreal adjustment = rect.width() / 2; | |
211 | rect.adjust(-adjustment, 0, adjustment, 0); |
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225 | rect.adjust(-adjustment, 0, adjustment, 0); | |
212 | } |
|
226 | } | |
213 | d_ptr->m_chart->zoomIn(rect); |
|
227 | d_ptr->m_chart->zoomIn(rect); | |
214 | } else { |
|
228 | } else { | |
215 | d_ptr->m_chart->zoomOut(); |
|
229 | d_ptr->m_chart->zoomOut(); | |
216 | } |
|
230 | } | |
217 | event->accept(); |
|
231 | event->accept(); | |
218 | } |
|
232 | } | |
219 | } else { |
|
233 | } else { | |
|
234 | #endif | |||
220 | QGraphicsView::mouseReleaseEvent(event); |
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235 | QGraphicsView::mouseReleaseEvent(event); | |
|
236 | #ifndef QT_NO_RUBBERBAND | |||
221 | } |
|
237 | } | |
|
238 | #endif | |||
222 | } |
|
239 | } | |
223 |
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240 | |||
224 | /*! |
|
241 | /*! | |
225 | Resizes and updates the chart area using the \a event data |
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242 | Resizes and updates the chart area using the \a event data | |
226 | */ |
|
243 | */ | |
227 | void QChartView::resizeEvent(QResizeEvent *event) |
|
244 | void QChartView::resizeEvent(QResizeEvent *event) | |
228 | { |
|
245 | { | |
229 | QGraphicsView::resizeEvent(event); |
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246 | QGraphicsView::resizeEvent(event); | |
230 | d_ptr->resize(); |
|
247 | d_ptr->resize(); | |
231 | } |
|
248 | } | |
232 |
|
249 | |||
233 | /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
|
250 | /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | |
234 |
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251 | |||
235 | QChartViewPrivate::QChartViewPrivate(QChartView *q, QChart *chart) |
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252 | QChartViewPrivate::QChartViewPrivate(QChartView *q, QChart *chart) | |
236 | : q_ptr(q), |
|
253 | : q_ptr(q), | |
237 | m_scene(new QGraphicsScene(q)), |
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254 | m_scene(new QGraphicsScene(q)), | |
238 | m_chart(chart), |
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255 | m_chart(chart), | |
|
256 | #ifndef QT_NO_RUBBERBAND | |||
239 | m_rubberBand(0), |
|
257 | m_rubberBand(0), | |
|
258 | #endif | |||
240 | m_rubberBandFlags(QChartView::NoRubberBand) |
|
259 | m_rubberBandFlags(QChartView::NoRubberBand) | |
241 | { |
|
260 | { | |
242 | q_ptr->setFrameShape(QFrame::NoFrame); |
|
261 | q_ptr->setFrameShape(QFrame::NoFrame); | |
243 | q_ptr->setBackgroundRole(QPalette::Window); |
|
262 | q_ptr->setBackgroundRole(QPalette::Window); | |
244 | q_ptr->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
|
263 | q_ptr->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); | |
245 | q_ptr->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
|
264 | q_ptr->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); | |
246 | q_ptr->setScene(m_scene); |
|
265 | q_ptr->setScene(m_scene); | |
247 | q_ptr->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); |
|
266 | q_ptr->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | |
248 | if (!m_chart) |
|
267 | if (!m_chart) | |
249 | m_chart = new QChart(); |
|
268 | m_chart = new QChart(); | |
250 | m_scene->addItem(m_chart); |
|
269 | m_scene->addItem(m_chart); | |
251 | } |
|
270 | } | |
252 |
|
271 | |||
253 | QChartViewPrivate::~QChartViewPrivate() |
|
272 | QChartViewPrivate::~QChartViewPrivate() | |
254 | { |
|
273 | { | |
255 | } |
|
274 | } | |
256 |
|
275 | |||
257 | void QChartViewPrivate::setChart(QChart *chart) |
|
276 | void QChartViewPrivate::setChart(QChart *chart) | |
258 | { |
|
277 | { | |
259 | Q_ASSERT(chart); |
|
278 | Q_ASSERT(chart); | |
260 |
|
279 | |||
261 | if (m_chart == chart) |
|
280 | if (m_chart == chart) | |
262 | return; |
|
281 | return; | |
263 |
|
282 | |||
264 | if (m_chart) |
|
283 | if (m_chart) | |
265 | m_scene->removeItem(m_chart); |
|
284 | m_scene->removeItem(m_chart); | |
266 |
|
285 | |||
267 | m_chart = chart; |
|
286 | m_chart = chart; | |
268 | m_scene->addItem(m_chart); |
|
287 | m_scene->addItem(m_chart); | |
269 |
|
288 | |||
270 | resize(); |
|
289 | resize(); | |
271 | } |
|
290 | } | |
272 |
|
291 | |||
273 | void QChartViewPrivate::resize() |
|
292 | void QChartViewPrivate::resize() | |
274 | { |
|
293 | { | |
275 | // Fit the chart into view if it has been rotated |
|
294 | // Fit the chart into view if it has been rotated | |
276 | qreal sinA = qAbs(q_ptr->transform().m21()); |
|
295 | qreal sinA = qAbs(q_ptr->transform().m21()); | |
277 | qreal cosA = qAbs(q_ptr->transform().m11()); |
|
296 | qreal cosA = qAbs(q_ptr->transform().m11()); | |
278 | QSize chartSize = q_ptr->size(); |
|
297 | QSize chartSize = q_ptr->size(); | |
279 |
|
298 | |||
280 | if (sinA == 1.0) { |
|
299 | if (sinA == 1.0) { | |
281 | chartSize.setHeight(q_ptr->size().width()); |
|
300 | chartSize.setHeight(q_ptr->size().width()); | |
282 | chartSize.setWidth(q_ptr->size().height()); |
|
301 | chartSize.setWidth(q_ptr->size().height()); | |
283 | } else if (sinA != 0.0) { |
|
302 | } else if (sinA != 0.0) { | |
284 | // Non-90 degree rotation, find largest square chart that can fit into the view. |
|
303 | // Non-90 degree rotation, find largest square chart that can fit into the view. | |
285 | qreal minDimension = qMin(q_ptr->size().width(), q_ptr->size().height()); |
|
304 | qreal minDimension = qMin(q_ptr->size().width(), q_ptr->size().height()); | |
286 | qreal h = (minDimension - (minDimension / ((sinA / cosA) + 1.0))) / sinA; |
|
305 | qreal h = (minDimension - (minDimension / ((sinA / cosA) + 1.0))) / sinA; | |
287 | chartSize.setHeight(h); |
|
306 | chartSize.setHeight(h); | |
288 | chartSize.setWidth(h); |
|
307 | chartSize.setWidth(h); | |
289 | } |
|
308 | } | |
290 |
|
309 | |||
291 | m_chart->resize(chartSize); |
|
310 | m_chart->resize(chartSize); | |
292 | q_ptr->setMinimumSize(m_chart->minimumSize().toSize()); |
|
311 | q_ptr->setMinimumSize(m_chart->minimumSize().toSize()); | |
293 | q_ptr->setSceneRect(m_chart->geometry()); |
|
312 | q_ptr->setSceneRect(m_chart->geometry()); | |
294 | } |
|
313 | } | |
295 |
|
314 | |||
296 | #include "moc_qchartview.cpp" |
|
315 | #include "moc_qchartview.cpp" | |
297 |
|
316 | |||
298 | QTCOMMERCIALCHART_END_NAMESPACE |
|
317 | QTCOMMERCIALCHART_END_NAMESPACE |
@@ -1,63 +1,65 | |||||
1 | /**************************************************************************** |
|
1 | /**************************************************************************** | |
2 | ** |
|
2 | ** | |
3 | ** Copyright (C) 2013 Digia Plc |
|
3 | ** Copyright (C) 2013 Digia Plc | |
4 | ** All rights reserved. |
|
4 | ** All rights reserved. | |
5 | ** For any questions to Digia, please use contact form at http://qt.digia.com |
|
5 | ** For any questions to Digia, please use contact form at http://qt.digia.com | |
6 | ** |
|
6 | ** | |
7 | ** This file is part of the Qt Enterprise Charts Add-on. |
|
7 | ** This file is part of the Qt Enterprise Charts Add-on. | |
8 | ** |
|
8 | ** | |
9 | ** $QT_BEGIN_LICENSE$ |
|
9 | ** $QT_BEGIN_LICENSE$ | |
10 | ** Licensees holding valid Qt Enterprise licenses may use this file in |
|
10 | ** Licensees holding valid Qt Enterprise licenses may use this file in | |
11 | ** accordance with the Qt Enterprise License Agreement provided with the |
|
11 | ** accordance with the Qt Enterprise License Agreement provided with the | |
12 | ** Software or, alternatively, in accordance with the terms contained in |
|
12 | ** Software or, alternatively, in accordance with the terms contained in | |
13 | ** a written agreement between you and Digia. |
|
13 | ** a written agreement between you and Digia. | |
14 | ** |
|
14 | ** | |
15 | ** If you have questions regarding the use of this file, please use |
|
15 | ** If you have questions regarding the use of this file, please use | |
16 | ** contact form at http://qt.digia.com |
|
16 | ** contact form at http://qt.digia.com | |
17 | ** $QT_END_LICENSE$ |
|
17 | ** $QT_END_LICENSE$ | |
18 | ** |
|
18 | ** | |
19 | ****************************************************************************/ |
|
19 | ****************************************************************************/ | |
20 |
|
20 | |||
21 | // W A R N I N G |
|
21 | // W A R N I N G | |
22 | // ------------- |
|
22 | // ------------- | |
23 | // |
|
23 | // | |
24 | // This file is not part of the Qt Enterprise Chart API. It exists purely as an |
|
24 | // This file is not part of the Qt Enterprise Chart API. It exists purely as an | |
25 | // implementation detail. This header file may change from version to |
|
25 | // implementation detail. This header file may change from version to | |
26 | // version without notice, or even be removed. |
|
26 | // version without notice, or even be removed. | |
27 | // |
|
27 | // | |
28 | // We mean it. |
|
28 | // We mean it. | |
29 |
|
29 | |||
30 | #ifndef QCHARTVIEW_P_H |
|
30 | #ifndef QCHARTVIEW_P_H | |
31 | #define QCHARTVIEW_P_H |
|
31 | #define QCHARTVIEW_P_H | |
32 |
|
32 | |||
33 | #include "qchartview.h" |
|
33 | #include "qchartview.h" | |
34 |
|
34 | |||
35 | class QGraphicsScene; |
|
35 | class QGraphicsScene; | |
36 | class ChartPresenter; |
|
36 | class ChartPresenter; | |
37 |
|
37 | |||
38 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
38 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
39 |
|
39 | |||
40 | class QChart; |
|
40 | class QChart; | |
41 | class QChartView; |
|
41 | class QChartView; | |
42 |
|
42 | |||
43 | class QChartViewPrivate |
|
43 | class QChartViewPrivate | |
44 | { |
|
44 | { | |
45 | public: |
|
45 | public: | |
46 | explicit QChartViewPrivate(QChartView *q, QChart *chart = 0); |
|
46 | explicit QChartViewPrivate(QChartView *q, QChart *chart = 0); | |
47 | ~QChartViewPrivate(); |
|
47 | ~QChartViewPrivate(); | |
48 | void setChart(QChart *chart); |
|
48 | void setChart(QChart *chart); | |
49 | void resize(); |
|
49 | void resize(); | |
50 |
|
50 | |||
51 | protected: |
|
51 | protected: | |
52 | QChartView *q_ptr; |
|
52 | QChartView *q_ptr; | |
53 |
|
53 | |||
54 | public: |
|
54 | public: | |
55 | QGraphicsScene *m_scene; |
|
55 | QGraphicsScene *m_scene; | |
56 | QChart *m_chart; |
|
56 | QChart *m_chart; | |
57 | QPoint m_rubberBandOrigin; |
|
57 | QPoint m_rubberBandOrigin; | |
|
58 | #ifndef QT_NO_RUBBERBAND | |||
58 | QRubberBand *m_rubberBand; |
|
59 | QRubberBand *m_rubberBand; | |
|
60 | #endif | |||
59 | QChartView::RubberBands m_rubberBandFlags; |
|
61 | QChartView::RubberBands m_rubberBandFlags; | |
60 | }; |
|
62 | }; | |
61 |
|
63 | |||
62 | QTCOMMERCIALCHART_END_NAMESPACE |
|
64 | QTCOMMERCIALCHART_END_NAMESPACE | |
63 | #endif |
|
65 | #endif |
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