File indexing completed on 2024-06-23 04:25:56 

0001 /*
0002  * SPDX-FileCopyrightText: 2008 Cyrille Berger <cberger@cberger.net>
0003  * SPDX-FileCopyrightText: 2010 Geoffry Song <goffrie@gmail.com>
0004  * SPDX-FileCopyrightText: 2017 Scott Petrovic <scottpetrovic@gmail.com>
0005  *
0006  *  SPDX-License-Identifier: LGPL-2.0-or-later
0007  */
0008 
0009 #ifndef _CONCENTRIC_ELLIPSE_ASSISTANT_H_
0010 #define _CONCENTRIC_ELLIPSE_ASSISTANT_H_
0011 
0012 #include "kis_painting_assistant.h"
0013 #include "Ellipse.h"
0014 #include <QLineF>
0015 #include <QObject>
0016 
0017 #include "kritaassistanttool_export.h"
0018 
0019 class KRITAASSISTANTTOOL_EXPORT ConcentricEllipseAssistant
0020     : public KisPaintingAssistant
0021 {
0022 public:
0023     ConcentricEllipseAssistant();
0024     KisPaintingAssistantSP clone(QMap<KisPaintingAssistantHandleSP, KisPaintingAssistantHandleSP> &handleMap) const override;
0025 
0026     QPointF adjustPosition(const QPointF& point, const QPointF& strokeBegin, const bool snapToAny, qreal moveThresholdPt) override;
0027     void adjustLine(QPointF &point, QPointF& strokeBegin) override;
0028 
0029     QPointF getDefaultEditorPosition() const override;
0030     int numHandles() const override { return 3; }
0031     bool isAssistantComplete() const override;
0032 
0033     void transform(const QTransform &transform) override;
0034 
0035 
0036 protected:
0037     QRect boundingRect() const override;
0038     void drawAssistant(QPainter& gc, const QRectF& updateRect, const KisCoordinatesConverter* converter, bool cached, KisCanvas2* canvas, bool assistantVisible=true, bool previewVisible=true) override;
0039     void drawCache(QPainter& gc, const KisCoordinatesConverter *converter,  bool assistantVisible=true) override;
0040 private:
0041     QPointF project(const QPointF& pt, const QPointF& strokeBegin) const;
0042     mutable Ellipse m_ellipse;
0043     mutable Ellipse m_extraEllipse;
0044     explicit ConcentricEllipseAssistant(const ConcentricEllipseAssistant &rhs, QMap<KisPaintingAssistantHandleSP, KisPaintingAssistantHandleSP> &handleMap);
0045 };
0046 
0047 class KRITAASSISTANTTOOL_EXPORT ConcentricEllipseAssistantFactory
0048     : public KisPaintingAssistantFactory
0049 {
0050 public:
0051     ConcentricEllipseAssistantFactory();
0052     ~ConcentricEllipseAssistantFactory() override;
0053     QString id() const override;
0054     QString name() const override;
0055     KisPaintingAssistant* createPaintingAssistant() const override;
0056 };
0057 
0058 #endif