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/*
* UBGraphicsProtractor.h
*
* Created on: April 23, 2009
* Author: Patrick LeclËre
*/
#ifndef UBGRAPHICSPROTRACTOR_H_
#define UBGRAPHICSPROTRACTOR_H_
#include <QtGui>
#include <QtSvg>
#include "core/UB.h"
#include "domain/UBItem.h"
class UBGraphicsScene;
class UBGraphicsProtractor : public QObject, public QGraphicsEllipseItem, public UBItem
{
Q_OBJECT;
public:
UBGraphicsProtractor ();
enum Tool {None, Move, Resize, Rotate, Reset, Close, MoveMarker};
qreal angle () { return mStartAngle; }
qreal markerAngle () { return mCurrentAngle; }
void setAngle (qreal angle) { mStartAngle = angle; setStartAngle(mStartAngle * 16); }
void setMarkerAngle (qreal angle) { mCurrentAngle = angle; }
virtual UBItem* deepCopy() const;
enum { Type = UBGraphicsItemType::ProtractorItemType };
virtual int type() const
{
return Type;
}
signals:
void hidden();
protected:
virtual void paint (QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
virtual void mousePressEvent (QGraphicsSceneMouseEvent *event);
virtual void mouseMoveEvent (QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *event);
virtual void hoverEnterEvent (QGraphicsSceneHoverEvent *event);
virtual void hoverLeaveEvent (QGraphicsSceneHoverEvent *event);
virtual void hoverMoveEvent (QGraphicsSceneHoverEvent *event);
virtual QPainterPath shape() const;
QRectF boundingRect() const;
private:
// Helpers
void paintGraduations (QPainter *painter);
void paintButtons (QPainter *painter);
void paintAngleMarker (QPainter *painter);
Tool toolFromPos (QPointF pos);
qreal antiScale () const;
UBGraphicsScene* scene() const;
QColor drawColor() const;
QBrush fillBrush() const;
QSizeF buttonSizeReference () const{return QSizeF(radius() / 10, mCloseSvgItem->boundingRect().height() * radius()/(10 * mCloseSvgItem->boundingRect().width()));}
QSizeF markerSizeReference () const{return QSizeF(radius() / 10, mMarkerSvgItem->boundingRect().height() * radius()/(10 * mMarkerSvgItem->boundingRect().width()));}
QRectF resetButtonBounds () const;
QRectF closeButtonBounds () const;
QRectF resizeButtonBounds () const;
QRectF rotateButtonBounds () const{return QRectF(buttonSizeReference().width() * 5.5, -buttonSizeReference().width() * 5, buttonSizeReference().width(), buttonSizeReference().width());}
QRectF markerButtonBounds () const{return QRectF(radius() + 3, -markerSizeReference().height() / 2 , markerSizeReference().width(), markerSizeReference().height());}
inline qreal radius () const{return rect().height() / 2 - 20;}
// Members
QPointF mPreviousMousePos;
Tool mCurrentTool;
bool mShowButtons;
qreal mCurrentAngle;
qreal mSpan;
qreal mStartAngle;
qreal mScaleFactor;
QGraphicsSvgItem* mCloseSvgItem;
QGraphicsSvgItem* mResetSvgItem;
QGraphicsSvgItem* mResizeSvgItem;
QGraphicsSvgItem* mRotateSvgItem;
QGraphicsSvgItem* mMarkerSvgItem;
static const int sFillTransparency;
static const int sDrawTransparency;
static const QRectF sDefaultRect;
static const QColor sFillColor;
static const QColor sFillColorCenter;
static const QColor sDrawColor;
static const QColor sDarkBackgroundFillColor;
static const QColor sDarkBackgroundFillColorCenter;
static const QColor sDarkBackgroundDrawColor;
};
#endif /* UBGRAPHICSPROTRACTOR_H_ */