<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>pathstroke.h Example File | Qt Widgets 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-painting-pathstroke-example.html">Path Stroking</a></td><td >pathstroke.h Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">pathstroke.h Example File</h1> <span class="subtitle">painting/pathstroke/pathstroke.h</span> <!-- $$$painting/pathstroke/pathstroke.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#ifndef PATHSTROKE_H</span> <span class="preprocessor">#define PATHSTROKE_H</span> <span class="preprocessor">#include "arthurwidgets.h"</span> <span class="preprocessor">#include <QtWidgets></span> <span class="keyword">class</span> PathStrokeRenderer : <span class="keyword">public</span> ArthurFrame { Q_OBJECT Q_PROPERTY(bool animation READ animation WRITE setAnimation) Q_PROPERTY(<span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> penWidth READ realPenWidth WRITE setRealPenWidth) <span class="keyword">public</span>: <span class="keyword">enum</span> PathMode { CurveMode<span class="operator">,</span> LineMode }; <span class="keyword">explicit</span> PathStrokeRenderer(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent<span class="operator">,</span> bool smallScreen <span class="operator">=</span> <span class="keyword">false</span>); <span class="type">void</span> paint(<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> <span class="operator">*</span>) override; <span class="type">void</span> mousePressEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> mouseMoveEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> mouseReleaseEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> timerEvent(<span class="type"><a href="../qtcore/qtimerevent.html">QTimerEvent</a></span> <span class="operator">*</span>e) override; bool event(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>e) override; <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> sizeHint() <span class="keyword">const</span> override { <span class="keyword">return</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(<span class="number">500</span><span class="operator">,</span> <span class="number">500</span>); } bool animation() <span class="keyword">const</span> { <span class="keyword">return</span> m_timer<span class="operator">.</span>isActive(); } <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> realPenWidth() <span class="keyword">const</span> { <span class="keyword">return</span> m_penWidth; } <span class="type">void</span> setRealPenWidth(<span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> penWidth) { m_penWidth <span class="operator">=</span> penWidth; update(); } <span class="keyword">signals</span>: <span class="type">void</span> clicked(); <span class="keyword">public</span> <span class="keyword">slots</span>: <span class="type">void</span> setPenWidth(<span class="type">int</span> penWidth) { m_penWidth <span class="operator">=</span> penWidth <span class="operator">/</span> <span class="number">10.0</span>; update(); } <span class="type">void</span> setAnimation(bool animation); <span class="type">void</span> setFlatCap() { m_capStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>FlatCap; update(); } <span class="type">void</span> setSquareCap() { m_capStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SquareCap; update(); } <span class="type">void</span> setRoundCap() { m_capStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>RoundCap; update(); } <span class="type">void</span> setBevelJoin() { m_joinStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>BevelJoin; update(); } <span class="type">void</span> setMiterJoin() { m_joinStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>MiterJoin; update(); } <span class="type">void</span> setSvgMiterJoin() { m_joinStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SvgMiterJoin; update(); } <span class="type">void</span> setRoundJoin() { m_joinStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>RoundJoin; update(); } <span class="type">void</span> setCurveMode() { m_pathMode <span class="operator">=</span> CurveMode; update(); } <span class="type">void</span> setLineMode() { m_pathMode <span class="operator">=</span> LineMode; update(); } <span class="type">void</span> setSolidLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>SolidLine; update(); } <span class="type">void</span> setDashLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DashLine; update(); } <span class="type">void</span> setDotLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DotLine; update(); } <span class="type">void</span> setDashDotLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DashDotLine; update(); } <span class="type">void</span> setDashDotDotLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DashDotDotLine; update(); } <span class="type">void</span> setCustomDashLine() { m_penStyle <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>NoPen; update(); } <span class="keyword">private</span>: <span class="type">void</span> initializePoints(); <span class="type">void</span> updatePoints(); <span class="type"><a href="../qtcore/qbasictimer.html">QBasicTimer</a></span> m_timer; PathMode m_pathMode; bool m_wasAnimated; <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> m_penWidth; <span class="type">int</span> m_pointCount; <span class="type">int</span> m_pointSize; <span class="type">int</span> m_activePoint; <span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span><span class="operator">></span> m_points; <span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span><span class="operator">></span> m_vectors; <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>PenJoinStyle m_joinStyle; <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>PenCapStyle m_capStyle; <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>PenStyle m_penStyle; bool m_smallScreen; <span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span> m_mousePress; bool m_mouseDrag; <span class="type"><a href="../qtcore/qhash.html">QHash</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span> <span class="type">int</span><span class="operator">></span> m_fingerPointMapping; }; <span class="keyword">class</span> PathStrokeControls : <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span> { Q_OBJECT <span class="keyword">public</span>: PathStrokeControls(<span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">*</span> parent<span class="operator">,</span> PathStrokeRenderer<span class="operator">*</span> renderer<span class="operator">,</span> bool smallScreen); <span class="keyword">signals</span>: <span class="type">void</span> okPressed(); <span class="type">void</span> quitPressed(); <span class="keyword">private</span>: PathStrokeRenderer<span class="operator">*</span> m_renderer; <span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>m_capGroup; <span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>m_joinGroup; <span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>m_styleGroup; <span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>m_pathModeGroup; <span class="type">void</span> createCommonControls(<span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">*</span> parent); <span class="type">void</span> layoutForDesktop(); <span class="type">void</span> layoutForSmallScreens(); <span class="keyword">private</span> <span class="keyword">slots</span>: <span class="type">void</span> emitQuitSignal(); <span class="type">void</span> emitOkSignal(); }; <span class="keyword">class</span> PathStrokeWidget : <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span> { Q_OBJECT <span class="keyword">public</span>: PathStrokeWidget(bool smallScreen); <span class="type">void</span> setStyle ( <span class="type"><a href="qstyle.html">QStyle</a></span> <span class="operator">*</span> style ); <span class="keyword">private</span>: PathStrokeRenderer <span class="operator">*</span>m_renderer; PathStrokeControls <span class="operator">*</span>m_controls; <span class="keyword">private</span> <span class="keyword">slots</span>: <span class="type">void</span> showControls(); <span class="type">void</span> hideControls(); }; <span class="preprocessor">#endif // PATHSTROKE_H</span> </pre> </div> <!-- @@@painting/pathstroke/pathstroke.h --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> 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. </p> </div> </body> </html>