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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd
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** All rights reserved.
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** For any questions to The Qt Company, please use contact form at http://qt.io
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**
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** This file is part of the Qt Charts module.
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**
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** Licensees holding valid commercial license for Qt may use this file in
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** accordance with the Qt License Agreement provided with the Software
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** or, alternatively, in accordance with the terms contained in a written
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** agreement between you and The Qt Company.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.io
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**
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****************************************************************************/
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt Chart API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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#ifndef CHARTPRESENTER_H
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#define CHARTPRESENTER_H
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#include <QtCharts/QChartGlobal>
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#include <QtCharts/QChart> //because of QChart::ChartThemeId
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#include <private/glwidget_p.h>
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#include <QtCore/QRectF>
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#include <QtCore/QMargins>
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#include <QtCore/QLocale>
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#include <QtCore/QPointer>
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QT_CHARTS_BEGIN_NAMESPACE
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class ChartItem;
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class AxisItem;
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class QAbstractSeries;
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class ChartDataSet;
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class AbstractDomain;
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class ChartAxisElement;
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class ChartAnimator;
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class ChartBackground;
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class ChartTitle;
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class ChartAnimation;
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class AbstractChartLayout;
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class ChartPresenter: public QObject
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{
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Q_OBJECT
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public:
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enum ZValues {
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BackgroundZValue = -1,
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PlotAreaZValue,
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ShadesZValue,
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GridZValue,
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AxisZValue,
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SeriesZValue,
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LineChartZValue = SeriesZValue,
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SplineChartZValue = SeriesZValue,
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BarSeriesZValue = SeriesZValue,
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ScatterSeriesZValue = SeriesZValue,
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PieSeriesZValue = SeriesZValue,
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BoxPlotSeriesZValue = SeriesZValue,
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LegendZValue,
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TopMostZValue
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};
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enum State {
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ShowState,
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ScrollUpState,
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ScrollDownState,
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ScrollLeftState,
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ScrollRightState,
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ZoomInState,
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ZoomOutState
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};
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ChartPresenter(QChart *chart, QChart::ChartType type);
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virtual ~ChartPresenter();
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void setGeometry(QRectF rect);
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QRectF geometry() const;
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QGraphicsItem *rootItem(){ return m_chart; }
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ChartBackground *backgroundElement();
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QAbstractGraphicsShapeItem *plotAreaElement();
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ChartTitle *titleElement();
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QList<ChartAxisElement *> axisItems() const;
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QList<ChartItem *> chartItems() const;
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QLegend *legend();
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void setBackgroundBrush(const QBrush &brush);
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QBrush backgroundBrush() const;
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void setBackgroundPen(const QPen &pen);
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QPen backgroundPen() const;
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void setBackgroundRoundness(qreal diameter);
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qreal backgroundRoundness() const;
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void setPlotAreaBackgroundBrush(const QBrush &brush);
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QBrush plotAreaBackgroundBrush() const;
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void setPlotAreaBackgroundPen(const QPen &pen);
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QPen plotAreaBackgroundPen() const;
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void setTitle(const QString &title);
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QString title() const;
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void setTitleFont(const QFont &font);
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QFont titleFont() const;
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void setTitleBrush(const QBrush &brush);
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QBrush titleBrush() const;
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void setBackgroundVisible(bool visible);
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bool isBackgroundVisible() const;
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void setPlotAreaBackgroundVisible(bool visible);
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bool isPlotAreaBackgroundVisible() const;
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void setBackgroundDropShadowEnabled(bool enabled);
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bool isBackgroundDropShadowEnabled() const;
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void setLocalizeNumbers(bool localize);
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inline bool localizeNumbers() const { return m_localizeNumbers; }
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void setLocale(const QLocale &locale);
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inline const QLocale &locale() const { return m_locale; }
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void setVisible(bool visible);
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void setAnimationOptions(QChart::AnimationOptions options);
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QChart::AnimationOptions animationOptions() const;
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void setAnimationDuration(int msecs);
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int animationDuration() const { return m_animationDuration; }
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void setAnimationEasingCurve(const QEasingCurve &curve);
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QEasingCurve animationEasingCurve() const { return m_animationCurve; }
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void startAnimation(ChartAnimation *animation);
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void setState(State state,QPointF point);
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State state() const { return m_state; }
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QPointF statePoint() const { return m_statePoint; }
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AbstractChartLayout *layout();
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QChart::ChartType chartType() const { return m_chart->chartType(); }
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QChart *chart() { return m_chart; }
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static QRectF textBoundingRect(const QFont &font, const QString &text, qreal angle = 0.0);
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static QString truncatedText(const QFont &font, const QString &text, qreal angle,
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qreal maxWidth, qreal maxHeight, QRectF &boundingRect);
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inline static qreal textMargin() { return qreal(0.5); }
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QString numberToString(double value, char f = 'g', int prec = 6);
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QString numberToString(int value);
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void ensureGLWidget();
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void glSetUseWidget(bool enable) { m_glUseWidget = enable; }
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private:
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void createBackgroundItem();
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void createPlotAreaBackgroundItem();
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void createTitleItem();
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public Q_SLOTS:
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void handleSeriesAdded(QAbstractSeries *series);
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void handleSeriesRemoved(QAbstractSeries *series);
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void handleAxisAdded(QAbstractAxis *axis);
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void handleAxisRemoved(QAbstractAxis *axis);
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Q_SIGNALS:
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void plotAreaChanged(const QRectF &plotArea);
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private:
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QChart *m_chart;
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QList<ChartItem *> m_chartItems;
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QList<ChartAxisElement *> m_axisItems;
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QList<QAbstractSeries *> m_series;
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QList<QAbstractAxis *> m_axes;
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QChart::AnimationOptions m_options;
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int m_animationDuration;
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QEasingCurve m_animationCurve;
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State m_state;
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QPointF m_statePoint;
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AbstractChartLayout *m_layout;
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ChartBackground *m_background;
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QAbstractGraphicsShapeItem *m_plotAreaBackground;
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ChartTitle *m_title;
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QRectF m_rect;
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bool m_localizeNumbers;
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QLocale m_locale;
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#ifndef QT_NO_OPENGL
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QPointer<GLWidget> m_glWidget;
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#endif
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bool m_glUseWidget;
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};
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QT_CHARTS_END_NAMESPACE
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#endif /* CHARTPRESENTER_H */
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