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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
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef AXIS_H
#define AXIS_H
#include "qchartglobal.h"
#include "chart_p.h"
#include <QGraphicsItem>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class QAxis;
class ChartPresenter;
class ChartAxis : public Chart
{
Q_OBJECT
public:
enum AxisType{X_AXIS,Y_AXIS};
ChartAxis(QAxis *axis, ChartPresenter *presenter, AxisType type = X_AXIS);
~ChartAxis();
AxisType axisType() const { return m_type; }
void setAxisOpacity(qreal opacity);
qreal axisOpacity() const;
void setGridOpacity(qreal opacity);
qreal gridOpacity() const;
void setLabelsOpacity(qreal opacity);
qreal labelsOpacity() const;
void setShadesOpacity(qreal opacity);
qreal shadesOpacity() const;
void setLabelsAngle(int angle);
int labelsAngle()const { return m_labelsAngle; }
void setShadesBrush(const QBrush &brush);
void setShadesPen(const QPen &pen);
void setAxisPen(const QPen &pen);
void setGridPen(const QPen &pen);
void setLabelsPen(const QPen &pen);
void setLabelsBrush(const QBrush &brush);
void setLabelsFont(const QFont &font);
inline QRectF geometry() const { return m_rect; }
inline QVector<qreal> layout() { return m_layoutVector; }
public Q_SLOTS:
void handleAxisUpdated();
void handleAxisCategoriesUpdated();
void handleRangeChanged(qreal min , qreal max,int tickCount);
void handleGeometryChanged(const QRectF &size);
private:
inline bool isEmpty();
void createItems(int count);
void deleteItems(int count);
QVector<qreal> calculateLayout() const;
void updateLayout(QVector<qreal> &layout);
void setLayout(QVector<qreal> &layout);
bool createLabels(QStringList &labels,qreal min, qreal max,int ticks) const;
void axisSelected();
private:
QAxis* m_chartAxis;
AxisType m_type;
QRectF m_rect;
int m_labelsAngle;
QScopedPointer<QGraphicsItemGroup> m_grid;
QScopedPointer<QGraphicsItemGroup> m_shades;
QScopedPointer<QGraphicsItemGroup> m_labels;
QScopedPointer<QGraphicsItemGroup> m_axis;
QVector<qreal> m_layoutVector;
qreal m_min;
qreal m_max;
int m_ticksCount;
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 /* AXISITEM_H_ */
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