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104 lines
3.5 KiB
104 lines
3.5 KiB
14 years ago
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/*
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* UBGraphicsRuler.h
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*
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* Created on: April 16, 2009
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* Author: Jerome Marchaud
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*/
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#ifndef UBGRAPHICSRULER_H_
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#define UBGRAPHICSRULER_H_
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#include <QtGui>
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#include <QtSvg>
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#include "core/UB.h"
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#include "domain/UBItem.h"
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class UBGraphicsScene;
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class UBGraphicsRuler : public QObject, public QGraphicsRectItem, public UBItem
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{
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Q_OBJECT;
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public:
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UBGraphicsRuler();
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virtual ~UBGraphicsRuler();
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enum { Type = UBGraphicsItemType::RulerItemType };
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virtual int type() const
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{
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return Type;
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}
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virtual UBItem* deepCopy() const;
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signals:
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void hidden();
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protected:
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virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
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virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
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// Events
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virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
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virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
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virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
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private:
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// Helpers
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void fillBackground(QPainter *painter);
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void paintGraduations(QPainter *painter);
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void paintRotationCenter(QPainter *painter);
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void rotateAroundTopLeftOrigin(qreal angle);
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void updateResizeCursor();
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QPointF topLeftOrigin() const;
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QCursor moveCursor() const;
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QCursor resizeCursor() const;
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QCursor rotateCursor() const;
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QCursor closeCursor() const;
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QRectF resizeButtonRect() const;
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QRectF closeButtonRect() const;
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QRectF rotateButtonRect() const;
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UBGraphicsScene* scene() const;
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QColor drawColor() const;
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QColor middleFillColor() const;
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QColor edgeFillColor() const;
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QFont font() const;
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// Members
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bool mResizing;
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bool mRotating;
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bool mShowButtons;
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QGraphicsSvgItem* mCloseSvgItem;
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QGraphicsSvgItem* mRotateSvgItem;
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QGraphicsSvgItem* mResizeSvgItem;
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QCursor mResizeCursor;
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qreal mAntiScaleRatio;
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// Constants
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static const QRect sDefaultRect;
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static const int sLeftEdgeMargin = 10;
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static const int sMinLength = 150;
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static const int sDegreeToQtAngleUnit = 16;
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static const int sRotationRadius = 15;
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static const int sPixelsPerMillimeter = 5;
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static const int sFillTransparency = 127;
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static const int sDrawTransparency = 192;
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static const int sRoundingRadius = sLeftEdgeMargin / 2;
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static const QColor sLightBackgroundEdgeFillColor;
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static const QColor sLightBackgroundMiddleFillColor;
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static const QColor sLightBackgroundDrawColor;
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static const QColor sDarkBackgroundEdgeFillColor;
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static const QColor sDarkBackgroundMiddleFillColor;
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static const QColor sDarkBackgroundDrawColor;
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};
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#endif /* UBGRAPHICSRULER_H_ */
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