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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the QtCommercial 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 CHARTAXIS_H
#define CHARTAXIS_H
#include "qchartglobal.h"
#include "chartelement_p.h"
#include "axisanimation_p.h"
#include <QGraphicsItem>
#include <QGraphicsLayoutItem>
#include <QFont>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QAbstractAxis;
class ChartPresenter;
class ChartAxis : public ChartElement, public QGraphicsLayoutItem
{
Q_OBJECT
Q_INTERFACES(QGraphicsLayoutItem)
public:
enum AxisType{ X_AXIS,Y_AXIS };
ChartAxis(QAbstractAxis *axis, ChartPresenter *presenter);
~ChartAxis();
virtual AxisType axisType() const = 0;
void setArrowOpacity(qreal opacity);
qreal arrowOpacity() const;
void setArrowVisibility(bool visible);
void setGridOpacity(qreal opacity);
qreal gridOpacity() const;
void setGridVisibility(bool visible);
void setLabelsOpacity(qreal opacity);
qreal labelsOpacity() const;
void setLabelsVisibility(bool visible);
void setShadesOpacity(qreal opacity);
qreal shadesOpacity() const;
void setShadesVisibility(bool visible);
void setLabelsAngle(int angle);
int labelsAngle()const { return m_labelsAngle; }
void setShadesBrush(const QBrush &brush);
void setShadesPen(const QPen &pen);
void setArrowPen(const QPen &pen);
void setGridPen(const QPen &pen);
void setLabelsPen(const QPen &pen);
void setLabelsBrush(const QBrush &brush);
void setLabelsFont(const QFont &font);
void setTitlePen(const QPen &pen);
void setTitleBrush(const QBrush &brush);
void setTitleFont(const QFont &font);
void setTitleText(const QString& title);
void setLayout(QVector<qreal> &layout);
QVector<qreal> layout() const { return m_layoutVector; }
void setAnimation(AxisAnimation* animation);
ChartAnimation* animation() const { return m_animation; };
Qt::Orientation orientation() const;
bool isVisible();
void hide();
void setGeometry(const QRectF &size);
QRectF geometry() const { return m_rect; }
virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF& constraint = QSizeF()) const;
protected:
virtual void updateGeometry() = 0;
virtual QVector<qreal> calculateLayout() const = 0;
QStringList createNumberLabels(qreal min, qreal max,int ticks) const;
public Q_SLOTS:
virtual void handleAxisUpdated();
virtual void handleDomainUpdated();
private:
inline bool isEmpty();
void createItems(int count);
void deleteItems(int count);
void updateLayout(QVector<qreal> &layout);
void axisSelected();
protected:
QAbstractAxis* m_chartAxis;
int m_labelsAngle;
//TODO: to be removed
QRectF m_rect;
QScopedPointer<QGraphicsItemGroup> m_grid;
QScopedPointer<QGraphicsItemGroup> m_shades;
QScopedPointer<QGraphicsItemGroup> m_labels;
QScopedPointer<QGraphicsItemGroup> m_arrow;
QGraphicsSimpleTextItem* m_title;
QVector<qreal> m_layoutVector;
qreal m_min;
qreal m_max;
AxisAnimation *m_animation;
QFont m_font;
QString m_titleText;
friend class AxisAnimation;
friend class AxisItem;
};
class AxisItem: public QGraphicsLineItem
{
public:
explicit AxisItem(ChartAxis *axis, QGraphicsItem *parent = 0) : QGraphicsLineItem(parent), m_axis(axis) {}
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event)
{
Q_UNUSED(event)
m_axis->axisSelected();
}
QRectF boundingRect() const
{
return shape().boundingRect();
}
QPainterPath shape() const
{
QPainterPath path = QGraphicsLineItem::shape();
QRectF rect = path.boundingRect();
path.addRect(rect.adjusted(0,0,m_axis->axisType()!=ChartAxis::X_AXIS?8:0,m_axis->axisType()!=ChartAxis::Y_AXIS?8:0));
return path;
}
private:
ChartAxis* m_axis;
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif /* CHARTAXI_H */
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