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50 lines
1 KiB
C
50 lines
1 KiB
C
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#ifndef RULERITEM_H
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#define RULERITEM_H
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#include <QObject>
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#include <QGraphicsEllipseItem>
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#include <QGraphicsObject>
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struct plot_data;
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class RulerItem2;
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class RulerNodeItem2 : public QObject, public QGraphicsEllipseItem
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{
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Q_OBJECT
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friend class RulerItem2;
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public:
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explicit RulerNodeItem2(QGraphicsItem* parent);
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void setRuler(RulerItem2 *r);
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void recalculate();
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protected:
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QVariant itemChange(GraphicsItemChange change, const QVariant & value );
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private:
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struct plot_data *entry;
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RulerItem2* ruler;
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};
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class RulerItem2 : public QGraphicsObject
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{
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Q_OBJECT
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public:
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explicit RulerItem2(QGraphicsItem* parent,
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RulerNodeItem2 *sourceMarker,
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RulerNodeItem2 *destMarker);
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void recalculate();
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RulerNodeItem2* sourceNode() const;
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RulerNodeItem2* destNode() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * widget = 0);
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QRectF boundingRect() const;
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QPainterPath shape() const;
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private:
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QPointF startPoint, endPoint;
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RulerNodeItem2 *source, *dest;
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QString text;
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int height;
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int paint_direction;
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};
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#endif
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