beziercurve.h Example File
scenegraph/customgeometry/beziercurve.h/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/#ifndef BEZIERCURVE_H #define BEZIERCURVE_H #include <QtQuick/QQuickItem> class BezierCurve : public QQuickItem { Q_OBJECT Q_PROPERTY(QPointF p1 READ p1 WRITE setP1 NOTIFY p1Changed) Q_PROPERTY(QPointF p2 READ p2 WRITE setP2 NOTIFY p2Changed) Q_PROPERTY(QPointF p3 READ p3 WRITE setP3 NOTIFY p3Changed) Q_PROPERTY(QPointF p4 READ p4 WRITE setP4 NOTIFY p4Changed) Q_PROPERTY(int segmentCount READ segmentCount WRITE setSegmentCount NOTIFY segmentCountChanged) public: BezierCurve(QQuickItem *parent = 0); ~BezierCurve(); QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *); QPointF p1() const { return m_p1; } QPointF p2() const { return m_p2; } QPointF p3() const { return m_p3; } QPointF p4() const { return m_p4; } int segmentCount() const { return m_segmentCount; } void setP1(const QPointF &p); void setP2(const QPointF &p); void setP3(const QPointF &p); void setP4(const QPointF &p); void setSegmentCount(int count); signals: void p1Changed(const QPointF &p); void p2Changed(const QPointF &p); void p3Changed(const QPointF &p); void p4Changed(const QPointF &p); void segmentCountChanged(int count); private: QPointF m_p1; QPointF m_p2; QPointF m_p3; QPointF m_p4; int m_segmentCount; }; #endif
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