| /**************************************************************************** |
| ** |
| ** 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 |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** 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 ABSTRACTBARCHARTITEM_H |
| #define ABSTRACTBARCHARTITEM_H |
| |
| #include <private/chartitem_p.h> |
| #include <QtCharts/QAbstractBarSeries> |
| #include <QtCharts/private/qchartglobal_p.h> |
| #include <QtGui/QPen> |
| #include <QtGui/QBrush> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| class Bar; |
| class QAxisCategories; |
| class QChart; |
| class BarAnimation; |
| class QBarSetPrivate; |
| class QAbstractAxis; |
| |
| class Q_CHARTS_PRIVATE_EXPORT AbstractBarChartItem : public ChartItem |
| { |
| Q_OBJECT |
| public: |
| AbstractBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item = 0); |
| virtual ~AbstractBarChartItem(); |
| |
| public: |
| void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); |
| QRectF boundingRect() const; |
| |
| virtual QVector<QRectF> calculateLayout() = 0; |
| void initializeFullLayout(); |
| virtual void initializeLayout(int set, int category, int layoutIndex, bool resetAnimation) = 0; |
| virtual void applyLayout(const QVector<QRectF> &layout); |
| virtual void setAnimation(BarAnimation *animation); |
| virtual ChartAnimation *animation() const; |
| void setLayout(const QVector<QRectF> &layout); |
| QRectF geometry() const { return m_rect;} |
| void resetAnimation(); |
| |
| public Q_SLOTS: |
| void handleDomainUpdated(); |
| void handleLayoutChanged(); |
| void handleLabelsVisibleChanged(bool visible); |
| void handleDataStructureChanged(); // structure of of series has changed, recreate graphic items |
| void handleVisibleChanged(); |
| void handleOpacityChanged(); |
| void handleUpdatedBars(); |
| void handleLabelsPositionChanged(); |
| virtual void positionLabels(); |
| void handleBarValueChange(int index, QBarSet *barset); |
| void handleBarValueAdd(int index, int count, QBarSet *barset); |
| void handleBarValueRemove(int index, int count, QBarSet *barset); |
| void handleSeriesAdded(QAbstractSeries *series); |
| void handleSeriesRemoved(QAbstractSeries *series); |
| |
| protected: |
| void positionLabelsVertical(); |
| void createLabelItems(); |
| void handleSetStructureChange(); |
| virtual QString generateLabelText(int set, int category, qreal value); |
| void updateBarItems(); |
| virtual void markLabelsDirty(QBarSet *barset, int index, int count); |
| void calculateSeriesPositionAdjustmentAndWidth(); |
| |
| QRectF m_rect; |
| QVector<QRectF> m_layout; |
| |
| BarAnimation *m_animation; |
| |
| QAbstractBarSeries *m_series; // Not owned. |
| QMap<QBarSet *, QList<Bar *> > m_barMap; |
| QMap<QBarSet *, QHash<int, Bar *> > m_indexForBarMap; |
| int m_firstCategory; |
| int m_lastCategory; |
| int m_categoryCount; |
| QSizeF m_oldSize; |
| bool m_labelItemsMissing; |
| Qt::Orientation m_orientation; |
| bool m_resetAnimation; |
| qreal m_seriesPosAdjustment; |
| qreal m_seriesWidth; |
| }; |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #endif // ABSTRACTBARCHARTITEM_H |