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43 lines
744 B
C++
43 lines
744 B
C++
#ifndef SCALEITEM_H
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#define SCALEITEM_H
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#include <QGraphicsItem>
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#include "units.h"
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class ScaleItem : public QGraphicsItem
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{
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public:
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ScaleItem(QGraphicsItem *parent = 0);
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QRectF boundingRect() const {return _boundingRect;}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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QWidget *widget);
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void setResolution(qreal res);
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void setUnits(Units units);
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void setDigitalZoom(qreal zoom);
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private:
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struct Tick {
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double value;
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QRect boundingBox;
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};
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void computeScale();
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void updateCache();
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qreal _res;
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qreal _width;
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qreal _length;
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Units _units;
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bool _scale;
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qreal _digitalZoom;
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QRectF _boundingRect;
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QFont _font;
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QVector<Tick> _ticks;
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QRect _unitsBB;
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QString _unitsStr;
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};
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#endif // SCALEITEM_H
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