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/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UBGRAPHICSPROTRACTOR_H_
#define UBGRAPHICSPROTRACTOR_H_
#include <QtGui>
#include <QtSvg>
#include "core/UB.h"
#include "tools/UBAbstractDrawRuler.h"
#include "domain/UBItem.h"
class UBGraphicsScene;
class UBGraphicsProtractor : public UBAbstractDrawRuler, 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;
virtual void copyItemParameters(UBItem *copy) const;
enum { Type = UBGraphicsItemType::ProtractorItemType };
virtual int type() const
{
return Type;
}
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;
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 resetButtonRect () const;
QRectF closeButtonRect () const;
QRectF resizeButtonRect () const;
QRectF rotateButtonRect () const{return QRectF(buttonSizeReference().width() * 5.5, -buttonSizeReference().width() * 5, buttonSizeReference().width(), buttonSizeReference().width());}
QRectF markerButtonRect () 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* mResetSvgItem;
QGraphicsSvgItem* mResizeSvgItem;
QGraphicsSvgItem* mMarkerSvgItem;
QGraphicsSvgItem* mRotateSvgItem;
static const QRectF sDefaultRect;
virtual void rotateAroundCenter(qreal angle);
virtual QPointF rotationCenter() const;
int sFillTransparency;
int sDrawTransparency;
};
#endif /* UBGRAPHICSPROTRACTOR_H_ */