kqtquickcharts/src/chartcore.h

0001 /*
0002  *  Copyright 2014  Sebastian Gottfried <sebastiangottfried@web.de>
0003  *
0004  *  This library is free software; you can redistribute it and/or
0005  *  modify it under the terms of the GNU Lesser General Public
0006  *  License as published by the Free Software Foundation; either
0007  *  version 2.1 of the License, or (at your option) version 3, or any
0008  *  later version accepted by the membership of KDE e.V. (or its
0009  *  successor approved by the membership of KDE e.V.), which shall
0010  *  act as a proxy defined in Section 6 of version 3 of the license.
0011  *
0012  *  This library is distributed in the hope that it will be useful,
0013  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
0014  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0015  *  Lesser General Public License for more details.
0016  *
0017  *  You should have received a copy of the GNU Lesser General Public
0018  */
0019
0020 #ifndef CHARTCORE_H
0021 #define CHARTCORE_H
0022
0023 #include <QQuickPaintedItem>
0024
0025 #include "dimension.h"
0026
0027 class QAbstractTableModel;
0028
0029 class ChartCore : public QQuickPaintedItem
0030 {
0031     Q_OBJECT
0032     Q_PROPERTY(QAbstractTableModel* model READ model WRITE setModel NOTIFY modelChanged)
0033     Q_PROPERTY(QQmlListProperty<Dimension> dimensions READ dimensions CONSTANT)
0034     Q_PROPERTY(qreal pitch READ pitch WRITE setPitch NOTIFY pitchChanged)
0035     Q_PROPERTY(int textRole READ textRole WRITE setTextRole NOTIFY textRoleChanged)
0036 public:
0037     explicit ChartCore(QQuickItem *parent = nullptr);
0038     QAbstractTableModel* model() const;
0039     void setModel(QAbstractTableModel* model);
0040     QQmlListProperty<Dimension> dimensions();
0041     QList<Dimension*> dimensionsList() const;
0042     qreal pitch() const;
0043     void setPitch(qreal pitch);
0044     int textRole() const;
0045     void setTextRole(int textRole);
0046 Q_SIGNALS:
0047     void modelChanged();
0048     void chartStyleChanged();
0049     void pitchChanged();
0050     void textRoleChanged();
0051     void updated();
0052 protected Q_SLOTS:
0053     void triggerUpdate();
0054 protected:
0055     void paint(QPainter* painter) override;
0056     void paintAxisAndLines(QPainter* painter, qreal offset);
0057 private:
0058     static void appendDimension(QQmlListProperty<Dimension>* list, Dimension* dimension);
0059     static int countDimensions(QQmlListProperty<Dimension>* list);
0060     static Dimension* dimensionAt(QQmlListProperty<Dimension>* list, int index);
0061     static void clearDimensions(QQmlListProperty<Dimension>* list);
0062     QAbstractTableModel* m_model;
0063     QList<Dimension*> m_dimensions;
0064     qreal m_pitch;
0065     int m_textRole;
0066 };
0067
0068 #endif // CHARTCORE_H