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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the Qt Chart API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef CHARTPRESENTER_H
#define CHARTPRESENTER_H
#include <QtCharts/QChartGlobal>
#include <QtCharts/QChart> //because of QChart::ChartThemeId
#include <QtCharts/private/qchartglobal_p.h>
#include <private/glwidget_p.h>
#include <QtCore/QRectF>
#include <QtCore/QMargins>
#include <QtCore/QLocale>
#include <QtCore/QPointer>
#include <QtCore/QEasingCurve>
QT_CHARTS_BEGIN_NAMESPACE
class ChartItem;
class AxisItem;
class QAbstractSeries;
class ChartDataSet;
class AbstractDomain;
class ChartAxisElement;
class ChartAnimator;
class ChartBackground;
class ChartTitle;
class ChartAnimation;
class AbstractChartLayout;
class Q_CHARTS_PRIVATE_EXPORT ChartPresenter: public QObject
{
Q_OBJECT
public:
enum ZValues {
BackgroundZValue = -1,
PlotAreaZValue,
ShadesZValue,
GridZValue,
AxisZValue,
SeriesZValue,
LineChartZValue = SeriesZValue,
SplineChartZValue = SeriesZValue,
BarSeriesZValue = SeriesZValue,
ScatterSeriesZValue = SeriesZValue,
PieSeriesZValue = SeriesZValue,
BoxPlotSeriesZValue = SeriesZValue,
CandlestickSeriesZValue = SeriesZValue,
LegendZValue,
TopMostZValue
};
enum State {
ShowState,
ScrollUpState,
ScrollDownState,
ScrollLeftState,
ScrollRightState,
ZoomInState,
ZoomOutState
};
ChartPresenter(QChart *chart, QChart::ChartType type);
virtual ~ChartPresenter();
bool isFixedGeometry() const { return !m_fixedRect.isNull(); }
void setFixedGeometry(const QRectF &rect);
void setGeometry(QRectF rect);
QRectF geometry() const;
void updateGeometry(const QRectF &rect);
QGraphicsItem *rootItem(){ return m_chart; }
ChartBackground *backgroundElement();
QAbstractGraphicsShapeItem *plotAreaElement();
ChartTitle *titleElement();
QList<ChartAxisElement *> axisItems() const;
QList<ChartItem *> chartItems() const;
QLegend *legend();
void setBackgroundBrush(const QBrush &brush);
QBrush backgroundBrush() const;
void setBackgroundPen(const QPen &pen);
QPen backgroundPen() const;
void setBackgroundRoundness(qreal diameter);
qreal backgroundRoundness() const;
void setPlotAreaBackgroundBrush(const QBrush &brush);
QBrush plotAreaBackgroundBrush() const;
void setPlotAreaBackgroundPen(const QPen &pen);
QPen plotAreaBackgroundPen() const;
void setTitle(const QString &title);
QString title() const;
void setTitleFont(const QFont &font);
QFont titleFont() const;
void setTitleBrush(const QBrush &brush);
QBrush titleBrush() const;
void setBackgroundVisible(bool visible);
bool isBackgroundVisible() const;
void setPlotAreaBackgroundVisible(bool visible);
bool isPlotAreaBackgroundVisible() const;
void setBackgroundDropShadowEnabled(bool enabled);
bool isBackgroundDropShadowEnabled() const;
void setLocalizeNumbers(bool localize);
inline bool localizeNumbers() const { return m_localizeNumbers; }
void setLocale(const QLocale &locale);
inline const QLocale &locale() const { return m_locale; }
void setVisible(bool visible);
void setAnimationOptions(QChart::AnimationOptions options);
QChart::AnimationOptions animationOptions() const;
void setAnimationDuration(int msecs);
int animationDuration() const { return m_animationDuration; }
void setAnimationEasingCurve(const QEasingCurve &curve);
QEasingCurve animationEasingCurve() const { return m_animationCurve; }
void startAnimation(ChartAnimation *animation);
void setState(State state,QPointF point);
State state() const { return m_state; }
QPointF statePoint() const { return m_statePoint; }
AbstractChartLayout *layout();
QChart::ChartType chartType() const { return m_chart->chartType(); }
QChart *chart() { return m_chart; }
static QRectF textBoundingRect(const QFont &font, const QString &text, qreal angle = 0.0);
static QString truncatedText(const QFont &font, const QString &text, qreal angle,
qreal maxWidth, qreal maxHeight, QRectF &boundingRect);
inline static qreal textMargin() { return qreal(0.5); }
QString numberToString(double value, char f = 'g', int prec = 6);
QString numberToString(int value);
void updateGLWidget();
void glSetUseWidget(bool enable) { m_glUseWidget = enable; }
private:
void createBackgroundItem();
void createPlotAreaBackgroundItem();
void createTitleItem();
public Q_SLOTS:
void handleSeriesAdded(QAbstractSeries *series);
void handleSeriesRemoved(QAbstractSeries *series);
void handleAxisAdded(QAbstractAxis *axis);
void handleAxisRemoved(QAbstractAxis *axis);
Q_SIGNALS:
void plotAreaChanged(const QRectF &plotArea);
private:
QChart *m_chart;
QList<ChartItem *> m_chartItems;
QList<ChartAxisElement *> m_axisItems;
QList<QAbstractSeries *> m_series;
QList<QAbstractAxis *> m_axes;
QChart::AnimationOptions m_options;
int m_animationDuration;
QEasingCurve m_animationCurve;
State m_state;
QPointF m_statePoint;
AbstractChartLayout *m_layout;
ChartBackground *m_background;
QAbstractGraphicsShapeItem *m_plotAreaBackground;
ChartTitle *m_title;
QRectF m_rect;
bool m_localizeNumbers;
QLocale m_locale;
#ifndef QT_NO_OPENGL
QPointer<GLWidget> m_glWidget;
#endif
bool m_glUseWidget;
QRectF m_fixedRect;
};
QT_CHARTS_END_NAMESPACE
#endif /* CHARTPRESENTER_H */
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