1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Charts module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
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15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
21 | ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
22 | ** included in the packaging of this file. Please review the following |
23 | ** information to ensure the GNU General Public License requirements will |
24 | ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
25 | ** |
26 | ** $QT_END_LICENSE$ |
27 | ** |
28 | ****************************************************************************/ |
29 | |
30 | // W A R N I N G |
31 | // ------------- |
32 | // |
33 | // This file is not part of the Qt Chart API. It exists purely as an |
34 | // implementation detail. This header file may change from version to |
35 | // version without notice, or even be removed. |
36 | // |
37 | // We mean it. |
38 | |
39 | #ifndef CHARTPRESENTER_H |
40 | #define CHARTPRESENTER_H |
41 | |
42 | #include <QtCharts/QChartGlobal> |
43 | #include <QtCharts/QChart> //because of QChart::ChartThemeId |
44 | #include <QtCharts/private/qchartglobal_p.h> |
45 | #include <private/glwidget_p.h> |
46 | #include <QtCore/QRectF> |
47 | #include <QtCore/QMargins> |
48 | #include <QtCore/QLocale> |
49 | #include <QtCore/QPointer> |
50 | #include <QtCore/QEasingCurve> |
51 | |
52 | QT_CHARTS_BEGIN_NAMESPACE |
53 | |
54 | class ChartItem; |
55 | class AxisItem; |
56 | class QAbstractSeries; |
57 | class ChartDataSet; |
58 | class AbstractDomain; |
59 | class ChartAxisElement; |
60 | class ChartAnimator; |
61 | class ChartBackground; |
62 | class ChartTitle; |
63 | class ChartAnimation; |
64 | class AbstractChartLayout; |
65 | |
66 | class Q_CHARTS_PRIVATE_EXPORT ChartPresenter: public QObject |
67 | { |
68 | Q_OBJECT |
69 | public: |
70 | enum ZValues { |
71 | BackgroundZValue = -1, |
72 | PlotAreaZValue, |
73 | ShadesZValue, |
74 | GridZValue, |
75 | AxisZValue, |
76 | SeriesZValue, |
77 | LineChartZValue = SeriesZValue, |
78 | SplineChartZValue = SeriesZValue, |
79 | BarSeriesZValue = SeriesZValue, |
80 | ScatterSeriesZValue = SeriesZValue, |
81 | PieSeriesZValue = SeriesZValue, |
82 | BoxPlotSeriesZValue = SeriesZValue, |
83 | CandlestickSeriesZValue = SeriesZValue, |
84 | LegendZValue, |
85 | TopMostZValue |
86 | }; |
87 | |
88 | enum State { |
89 | ShowState, |
90 | ScrollUpState, |
91 | ScrollDownState, |
92 | ScrollLeftState, |
93 | ScrollRightState, |
94 | ZoomInState, |
95 | ZoomOutState |
96 | }; |
97 | |
98 | ChartPresenter(QChart *chart, QChart::ChartType type); |
99 | virtual ~ChartPresenter(); |
100 | |
101 | bool isFixedGeometry() const { return !m_fixedRect.isNull(); } |
102 | void setFixedGeometry(const QRectF &rect); |
103 | void setGeometry(QRectF rect); |
104 | QRectF geometry() const; |
105 | void updateGeometry(const QRectF &rect); |
106 | |
107 | QGraphicsItem *rootItem(){ return m_chart; } |
108 | ChartBackground *backgroundElement(); |
109 | QAbstractGraphicsShapeItem *plotAreaElement(); |
110 | ChartTitle *titleElement(); |
111 | QList<ChartAxisElement *> axisItems() const; |
112 | QList<ChartItem *> chartItems() const; |
113 | |
114 | QLegend *legend(); |
115 | |
116 | void setBackgroundBrush(const QBrush &brush); |
117 | QBrush backgroundBrush() const; |
118 | |
119 | void setBackgroundPen(const QPen &pen); |
120 | QPen backgroundPen() const; |
121 | |
122 | void setBackgroundRoundness(qreal diameter); |
123 | qreal backgroundRoundness() const; |
124 | |
125 | void setPlotAreaBackgroundBrush(const QBrush &brush); |
126 | QBrush plotAreaBackgroundBrush() const; |
127 | |
128 | void setPlotAreaBackgroundPen(const QPen &pen); |
129 | QPen plotAreaBackgroundPen() const; |
130 | |
131 | void setTitle(const QString &title); |
132 | QString title() const; |
133 | |
134 | void setTitleFont(const QFont &font); |
135 | QFont titleFont() const; |
136 | |
137 | void setTitleBrush(const QBrush &brush); |
138 | QBrush titleBrush() const; |
139 | |
140 | void setBackgroundVisible(bool visible); |
141 | bool isBackgroundVisible() const; |
142 | |
143 | void setPlotAreaBackgroundVisible(bool visible); |
144 | bool isPlotAreaBackgroundVisible() const; |
145 | |
146 | void setBackgroundDropShadowEnabled(bool enabled); |
147 | bool isBackgroundDropShadowEnabled() const; |
148 | |
149 | void setLocalizeNumbers(bool localize); |
150 | inline bool localizeNumbers() const { return m_localizeNumbers; } |
151 | void setLocale(const QLocale &locale); |
152 | inline const QLocale &locale() const { return m_locale; } |
153 | |
154 | void setVisible(bool visible); |
155 | |
156 | void setAnimationOptions(QChart::AnimationOptions options); |
157 | QChart::AnimationOptions animationOptions() const; |
158 | void setAnimationDuration(int msecs); |
159 | int animationDuration() const { return m_animationDuration; } |
160 | void setAnimationEasingCurve(const QEasingCurve &curve); |
161 | QEasingCurve animationEasingCurve() const { return m_animationCurve; } |
162 | |
163 | void startAnimation(ChartAnimation *animation); |
164 | |
165 | void setState(State state,QPointF point); |
166 | State state() const { return m_state; } |
167 | QPointF statePoint() const { return m_statePoint; } |
168 | AbstractChartLayout *layout(); |
169 | |
170 | QChart::ChartType chartType() const { return m_chart->chartType(); } |
171 | QChart *chart() { return m_chart; } |
172 | |
173 | static QRectF textBoundingRect(const QFont &font, const QString &text, qreal angle = 0.0); |
174 | static QString truncatedText(const QFont &font, const QString &text, qreal angle, |
175 | qreal maxWidth, qreal maxHeight, QRectF &boundingRect); |
176 | inline static qreal textMargin() { return qreal(0.5); } |
177 | |
178 | QString numberToString(double value, char f = 'g', int prec = 6); |
179 | QString numberToString(int value); |
180 | |
181 | void updateGLWidget(); |
182 | void glSetUseWidget(bool enable) { m_glUseWidget = enable; } |
183 | |
184 | private: |
185 | void createBackgroundItem(); |
186 | void createPlotAreaBackgroundItem(); |
187 | void createTitleItem(); |
188 | |
189 | public Q_SLOTS: |
190 | void handleSeriesAdded(QAbstractSeries *series); |
191 | void handleSeriesRemoved(QAbstractSeries *series); |
192 | void handleAxisAdded(QAbstractAxis *axis); |
193 | void handleAxisRemoved(QAbstractAxis *axis); |
194 | |
195 | Q_SIGNALS: |
196 | void plotAreaChanged(const QRectF &plotArea); |
197 | |
198 | private: |
199 | QChart *m_chart; |
200 | QList<ChartItem *> m_chartItems; |
201 | QList<ChartAxisElement *> m_axisItems; |
202 | QList<QAbstractSeries *> m_series; |
203 | QList<QAbstractAxis *> m_axes; |
204 | QChart::AnimationOptions m_options; |
205 | int m_animationDuration; |
206 | QEasingCurve m_animationCurve; |
207 | State m_state; |
208 | QPointF m_statePoint; |
209 | AbstractChartLayout *m_layout; |
210 | ChartBackground *m_background; |
211 | QAbstractGraphicsShapeItem *m_plotAreaBackground; |
212 | ChartTitle *m_title; |
213 | QRectF m_rect; |
214 | bool m_localizeNumbers; |
215 | QLocale m_locale; |
216 | #ifndef QT_NO_OPENGL |
217 | QPointer<GLWidget> m_glWidget; |
218 | #endif |
219 | bool m_glUseWidget; |
220 | QRectF m_fixedRect; |
221 | }; |
222 | |
223 | QT_CHARTS_END_NAMESPACE |
224 | |
225 | #endif /* CHARTPRESENTER_H */ |
226 | |