| /**************************************************************************** |
| ** |
| ** 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 |
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| ** 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 CHARTAXISELEMENT_H |
| #define CHARTAXISELEMENT_H |
| |
| #include <QtCharts/QChartGlobal> |
| #include <QtCharts/private/qchartglobal_p.h> |
| #include <private/chartelement_p.h> |
| #include <private/axisanimation_p.h> |
| #include <private/datetimeaxislabel_p.h> |
| #include <private/valueaxislabel_p.h> |
| #include <QtWidgets/QGraphicsItem> |
| #include <QtWidgets/QGraphicsLayoutItem> |
| #include <QtCharts/qdatetimeaxis.h> |
| #include <QtCharts/QValueAxis> |
| #include <QtGui/QFont> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| class ChartPresenter; |
| class QAbstractAxis; |
| |
| class Q_CHARTS_PRIVATE_EXPORT 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 |
| void setDynamicMinorTickLayout(const QVector<qreal> &layout) { m_dynamicMinorTickLayout = layout; } |
| QVector<qreal> &dynamicMinorTicklayout() { return m_dynamicMinorTickLayout; } // 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; |
| |
| qreal tickInterval() const; |
| qreal tickAnchor() 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, |
| qreal tickInterval, qreal tickAnchor, |
| QValueAxis::TickType tickType, 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*) |
| { |
| } |
| |
| bool labelsEditable() const; |
| void setLabelsEditable(bool labelsEditable); |
| |
| 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(); |
| void valueLabelEdited(qreal oldValue, qreal newValue); |
| void dateTimeLabelEdited(const QDateTime &oldTime, const QDateTime &newTime); |
| |
| 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; |
| QVector<qreal> m_dynamicMinorTickLayout; |
| 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; |
| bool m_labelsEditable = false; |
| }; |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #endif /* CHARTAXISELEMENT_H */ |