75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/****************************************************************************
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**
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* Draw ellipse by foci and a point on ellipse
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Copyright (C) 2011 Dongxu Li (dongxuli2011@gmail.com)
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Copyright (C) 2011 R. van Twisk (librecad@rvt.dds.nl)
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**********************************************************************/
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#ifndef RS_ACTIONDRAWELLIPSEINSCRIBE_H
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#define RS_ACTIONDRAWELLIPSEINSCRIBE_H
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#include "rs_previewactioninterface.h"
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/**
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* Draw ellipse by foci and a point on ellipse
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*
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* @author Dongxu Li
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*/
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class RS_ActionDrawEllipseInscribe : public RS_PreviewActionInterface {
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Q_OBJECT
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public:
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/**
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* Action States.
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*/
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enum Status {
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SetLine1, // Setting the First Line. */
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SetLine2, // Setting the Second Line. */
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SetLine3, // Setting the Third Line. */
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SetLine4 // Setting the Last Line. */
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};
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public:
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RS_ActionDrawEllipseInscribe(RS_EntityContainer& container,
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RS_GraphicView& graphicView);
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~RS_ActionDrawEllipseInscribe() override;
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void init(int status=0) override;
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void trigger() override;
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bool preparePreview();
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void mouseMoveEvent(QMouseEvent* e) override;
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void mouseReleaseEvent(QMouseEvent* e) override;
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// void coordinateEvent(RS_CoordinateEvent* e) override;
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// void commandEvent(RS_CommandEvent* e) override;
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QStringList getAvailableCommands() override;
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void finish(bool updateTB=true) override;
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void updateMouseButtonHints() override;
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void updateMouseCursor() override;
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protected:
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// 4 points on ellipse
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private:
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void clearLines(bool checkStatus=false);
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struct Points;
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std::unique_ptr<Points> pPoints;
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};
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#endif
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