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Diffstat (limited to 'src/charts/axis/chartaxiselement_p.h')
| -rw-r--r-- | src/charts/axis/chartaxiselement_p.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/charts/axis/chartaxiselement_p.h b/src/charts/axis/chartaxiselement_p.h new file mode 100644 index 00000000..1cfac64d --- /dev/null +++ b/src/charts/axis/chartaxiselement_p.h @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** Copyright (C) 2014 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 Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise 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 Qt Enterprise 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 "qchartglobal.h" +#include "chartelement_p.h" +#include "axisanimation_p.h" +#include <QGraphicsItem> +#include <QGraphicsLayoutItem> +#include <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 *> labelItems() { return m_labels->childItems(); } + QList<QGraphicsItem *> shadeItems() { return m_shades->childItems(); } + QList<QGraphicsItem *> arrowItems() { return m_arrow->childItems(); } + QGraphicsTextItem *titleItem() const { return m_title.data(); } + QGraphicsItemGroup *gridGroup() { return m_grid.data(); } + QGraphicsItemGroup *labelGroup() { return m_labels.data(); } + QGraphicsItemGroup *shadeGroup() { return m_shades.data(); } + QGraphicsItemGroup *arrowGroup() { return m_arrow.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; + void handleLabelsPenChanged(const QPen &pen); + void handleLabelsBrushChanged(const QBrush &brush); + void handleLabelsFontChanged(const QFont &font); + void handleTitlePenChanged(const QPen &pen); + 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); + +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_shades; + QScopedPointer<QGraphicsItemGroup> m_labels; + QScopedPointer<QGraphicsTextItem> m_title; + bool m_intervalAxis; +}; + +QT_CHARTS_END_NAMESPACE + +#endif /* CHARTAXISELEMENT_H */ |