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/****************************************************************************
**
* Draw a common tangent circle of 3 existing circles
* Problem of Appollonius
Copyright (C) 2012 Dongxu Li (dongxuli2011@gmail.com)
Copyright (C) 2011 R. van Twisk (librecad@rvt.dds.nl)
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**********************************************************************/
#ifndef RS_ACTIONDRAWCIRCLETAN3_H
#define RS_ACTIONDRAWCIRCLETAN3_H
#include <QVector>
#include "rs_circle.h"
#include "rs_previewactioninterface.h"
/**
* Draw ellipse by foci and a point on ellipse
*
* @author Dongxu Li
*/
class RS_ActionDrawCircleTan3 : public RS_PreviewActionInterface {
Q_OBJECT
public:
/**
* Action States.
*/
enum Status {
SetCircle1, // Setting the First Circle. */
SetCircle2, // Setting the Second Circle. */
SetCircle3, // Setting the Third Circle. */
SetCenter // select the closest tangential Circle. */
};
public:
RS_ActionDrawCircleTan3(RS_EntityContainer& container,
RS_GraphicView& graphicView);
~RS_ActionDrawCircleTan3();
static QAction* createGUIAction(RS2::ActionType type, QObject* /*parent*/);
virtual RS2::ActionType rtti() {
return RS2::ActionDrawCircleTan3;
}
virtual void init(int status=0);
virtual void trigger();
virtual bool getData();
virtual bool preparePreview();
virtual void mouseMoveEvent(QMouseEvent* e);
virtual void mouseReleaseEvent(QMouseEvent* e);
// virtual void coordinateEvent(RS_CoordinateEvent* e);
// virtual void commandEvent(RS_CommandEvent* e);
virtual QStringList getAvailableCommands();
virtual void finish(bool updateTB=true);
virtual void updateMouseButtonHints();
virtual void updateMouseCursor();
// virtual void updateToolBar();
// virtual void showOptions();
// virtual void hideOptions();
//protected:
private:
QVector<double> verifyCenter(const RS_Vector& center) const;
QVector<double> getRadii(RS_AtomicEntity* entity, const RS_Vector& center) const;
RS_Entity* catchCircle(QMouseEvent* e);
QVector<RS_AtomicEntity*> circles;
RS_CircleData cData;
QVector<RS_CircleData> m_vCandidates;
RS_Vector coord;
bool valid;
QVector<RS2::EntityType> enTypeList;
//keep a list of centers found
QList<RS_Circle> candidates;
RS_VectorSolutions centers;
};
#endif
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