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/******************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Charts module.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
******************************************************************************/
// 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 CHARTAXISELEMENT_H
#define CHARTAXISELEMENT_H
#include <QtCharts/QChartGlobal>
#include <private/chartelement_p.h>
#include <private/axisanimation_p.h>
#include <QtWidgets/QGraphicsItem>
#include <QtWidgets/QGraphicsLayoutItem>
#include <QtGui/QFont>
QT_CHARTS_BEGIN_NAMESPACE
class ChartPresenter;
class QAbstractAxis;
class ChartAxisElement : public ChartElement, public QGraphicsLayoutItem
{
Q_OBJECT
using QGraphicsLayoutItem::setGeometry;
public:
ChartAxisElement(QAbstractAxis *axis, QGraphicsItem *item, bool intervalAxis = false);
~ChartAxisElement();
virtual QRectF gridGeometry() const = 0;
virtual void setGeometry(const QRectF &axis, const QRectF &grid) = 0;
virtual bool isEmpty() = 0;
void setAnimation(AxisAnimation *animation) { m_animation = animation; }
AxisAnimation *animation() const { return m_animation; }
QAbstractAxis *axis() const { return m_axis; }
void setLayout(QVector<qreal> &layout) { m_layout = layout; }
QVector<qreal> &layout() { return m_layout; } // Modifiable reference
inline qreal labelPadding() const { return qreal(4.0); }
inline qreal titlePadding() const { return qreal(2.0); }
void setLabels(const QStringList &labels) { m_labelsList = labels; }
QStringList labels() const { return m_labelsList; }
qreal min() const;
qreal max() const;
QRectF axisGeometry() const { return m_axisRect; }
void setAxisGeometry(const QRectF &axisGeometry) { m_axisRect = axisGeometry; }
void axisSelected();
//this flag indicates that axis is used to show intervals it means labels are in between ticks
bool intervalAxis() const { return m_intervalAxis; }
QStringList createValueLabels(qreal max, qreal min, int ticks, const QString &format) const;
QStringList createLogValueLabels(qreal min, qreal max, qreal base, int ticks,
const QString &format) const;
QStringList createDateTimeLabels(qreal max, qreal min, int ticks, const QString &format) const;
// from QGraphicsLayoutItem
QRectF boundingRect() const
{
return QRectF();
}
// from QGraphicsLayoutItem
void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*)
{
}
protected:
virtual QVector<qreal> calculateLayout() const = 0;
virtual void updateLayout(QVector<qreal> &layout) = 0;
QList<QGraphicsItem *> gridItems() { return m_grid->childItems(); }
QList<QGraphicsItem *> minorGridItems() { return m_minorGrid->childItems(); }
QList<QGraphicsItem *> labelItems() { return m_labels->childItems(); }
QList<QGraphicsItem *> shadeItems() { return m_shades->childItems(); }
QList<QGraphicsItem *> arrowItems() { return m_arrow->childItems(); }
QList<QGraphicsItem *> minorArrowItems() { return m_minorArrow->childItems(); }
QGraphicsTextItem *titleItem() const { return m_title.data(); }
QGraphicsItemGroup *gridGroup() { return m_grid.data(); }
QGraphicsItemGroup *minorGridGroup() { return m_minorGrid.data(); }
QGraphicsItemGroup *labelGroup() { return m_labels.data(); }
QGraphicsItemGroup *shadeGroup() { return m_shades.data(); }
QGraphicsItemGroup *arrowGroup() { return m_arrow.data(); }
QGraphicsItemGroup *minorArrowGroup() { return m_minorArrow.data(); }
public Q_SLOTS:
void handleVisibleChanged(bool visible);
void handleArrowVisibleChanged(bool visible);
void handleGridVisibleChanged(bool visible);
void handleLabelsVisibleChanged(bool visible);
void handleShadesVisibleChanged(bool visible);
void handleLabelsAngleChanged(int angle);
virtual void handleShadesBrushChanged(const QBrush &brush) = 0;
virtual void handleShadesPenChanged(const QPen &pen) = 0;
virtual void handleArrowPenChanged(const QPen &pen) = 0;
virtual void handleGridPenChanged(const QPen &pen) = 0;
virtual void handleMinorArrowPenChanged(const QPen &pen) = 0;
virtual void handleMinorGridPenChanged(const QPen &pen) = 0;
virtual void handleMinorGridLineColorChanged(const QColor &color) = 0;
virtual void handleGridLineColorChanged(const QColor &color) = 0;
void handleLabelsBrushChanged(const QBrush &brush);
void handleLabelsFontChanged(const QFont &font);
void handleTitleBrushChanged(const QBrush &brush);
void handleTitleFontChanged(const QFont &font);
void handleTitleTextChanged(const QString &title);
void handleTitleVisibleChanged(bool visible);
void handleRangeChanged(qreal min, qreal max);
void handleReverseChanged(bool reverse);
void handleMinorArrowVisibleChanged(bool visible);
void handleMinorGridVisibleChanged(bool visible);
void handleLabelsPositionChanged();
Q_SIGNALS:
void clicked();
private:
void connectSlots();
QString formatLabel(const QString &formatSpec, const QByteArray &array,
qreal value, int precision, const QString &preStr,
const QString &postStr) const;
QAbstractAxis *m_axis;
AxisAnimation *m_animation;
QVector<qreal> m_layout;
QStringList m_labelsList;
QRectF m_axisRect;
QScopedPointer<QGraphicsItemGroup> m_grid;
QScopedPointer<QGraphicsItemGroup> m_arrow;
QScopedPointer<QGraphicsItemGroup> m_minorGrid;
QScopedPointer<QGraphicsItemGroup> m_minorArrow;
QScopedPointer<QGraphicsItemGroup> m_shades;
QScopedPointer<QGraphicsItemGroup> m_labels;
QScopedPointer<QGraphicsTextItem> m_title;
bool m_intervalAxis;
};
QT_CHARTS_END_NAMESPACE
#endif /* CHARTAXISELEMENT_H */
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