pathstroke.h Example File

/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: ** ** 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 For further ** information use the contact form at ** ** 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 PATHSTROKE_H #define PATHSTROKE_H #include "arthurwidgets.h" #include <QtWidgets> class PathStrokeRenderer : public ArthurFrame { Q_OBJECT Q_PROPERTY(bool animation READ animation WRITE setAnimation) Q_PROPERTY(qreal penWidth READ realPenWidth WRITE setRealPenWidth) public: enum PathMode { CurveMode, LineMode }; explicit PathStrokeRenderer(QWidget *parent, bool smallScreen = false); void paint(QPainter *) override; void mousePressEvent(QMouseEvent *e) override; void mouseMoveEvent(QMouseEvent *e) override; void mouseReleaseEvent(QMouseEvent *e) override; void timerEvent(QTimerEvent *e) override; bool event(QEvent *e) override; QSize sizeHint() const override { return QSize(500, 500); } bool animation() const { return m_timer.isActive(); } qreal realPenWidth() const { return m_penWidth; } void setRealPenWidth(qreal penWidth) { m_penWidth = penWidth; update(); } signals: void clicked(); public slots: void setPenWidth(int penWidth) { m_penWidth = penWidth / 10.0; update(); } void setAnimation(bool animation); void setFlatCap() { m_capStyle = Qt::FlatCap; update(); } void setSquareCap() { m_capStyle = Qt::SquareCap; update(); } void setRoundCap() { m_capStyle = Qt::RoundCap; update(); } void setBevelJoin() { m_joinStyle = Qt::BevelJoin; update(); } void setMiterJoin() { m_joinStyle = Qt::MiterJoin; update(); } void setSvgMiterJoin() { m_joinStyle = Qt::SvgMiterJoin; update(); } void setRoundJoin() { m_joinStyle = Qt::RoundJoin; update(); } void setCurveMode() { m_pathMode = CurveMode; update(); } void setLineMode() { m_pathMode = LineMode; update(); } void setSolidLine() { m_penStyle = Qt::SolidLine; update(); } void setDashLine() { m_penStyle = Qt::DashLine; update(); } void setDotLine() { m_penStyle = Qt::DotLine; update(); } void setDashDotLine() { m_penStyle = Qt::DashDotLine; update(); } void setDashDotDotLine() { m_penStyle = Qt::DashDotDotLine; update(); } void setCustomDashLine() { m_penStyle = Qt::NoPen; update(); } private: void initializePoints(); void updatePoints(); QBasicTimer m_timer; PathMode m_pathMode; bool m_wasAnimated; qreal m_penWidth; int m_pointCount; int m_pointSize; int m_activePoint; QVector<QPointF> m_points; QVector<QPointF> m_vectors; Qt::PenJoinStyle m_joinStyle; Qt::PenCapStyle m_capStyle; Qt::PenStyle m_penStyle; bool m_smallScreen; QPoint m_mousePress; bool m_mouseDrag; QHash<int, int> m_fingerPointMapping; }; class PathStrokeControls : public QWidget { Q_OBJECT public: PathStrokeControls(QWidget* parent, PathStrokeRenderer* renderer, bool smallScreen); signals: void okPressed(); void quitPressed(); private: PathStrokeRenderer* m_renderer; QGroupBox *m_capGroup; QGroupBox *m_joinGroup; QGroupBox *m_styleGroup; QGroupBox *m_pathModeGroup; void createCommonControls(QWidget* parent); void layoutForDesktop(); void layoutForSmallScreens(); private slots: void emitQuitSignal(); void emitOkSignal(); }; class PathStrokeWidget : public QWidget { Q_OBJECT public: PathStrokeWidget(bool smallScreen); void setStyle ( QStyle * style ); private: PathStrokeRenderer *m_renderer; PathStrokeControls *m_controls; private slots: void showControls(); void hideControls(); }; #endif // PATHSTROKE_H

© 2018 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.