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56 lines
1023 B
C++
56 lines
1023 B
C++
#ifndef GRAPHITEM_H
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#define GRAPHITEM_H
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#include <QGraphicsObject>
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#include <QPen>
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#include "graph.h"
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class GraphItem : public QGraphicsObject
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{
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Q_OBJECT
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public:
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GraphItem(const Graph &graph, QGraphicsItem *parent = 0);
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QRectF boundingRect() const
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{return _path.boundingRect();}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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QWidget *widget);
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const QRectF &bounds() const {return _bounds;}
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void setScale(qreal sx, qreal sy);
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void setGraphType(GraphType type);
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int id() const {return _id;}
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void setId(int id) {_id = id;}
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void setColor(const QColor &color);
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void setWidth(int width);
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qreal yAtX(qreal x);
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qreal distanceAtTime(qreal time);
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signals:
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void sliderPositionChanged(qreal);
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public slots:
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void emitSliderPositionChanged(qreal);
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void selected(bool selected);
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private:
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void updatePath();
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void updateBounds();
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int _id;
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QPen _pen;
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int _width;
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Graph _graph;
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GraphType _type;
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QPainterPath _path;
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QRectF _bounds;
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qreal _sx, _sy;
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};
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#endif // GRAPHITEM_H
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