<?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>pentool.cpp Example File | Qt Charts 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="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-piechartcustomization-example.html">Pie Chart Customization Example</a></td><td >pentool.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtcharts-index.html">Qt Charts | Commercial or GPLv3</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">pentool.cpp Example File</h1> <span class="subtitle">piechartcustomization/pentool.cpp</span> <!-- $$$piechartcustomization/pentool.cpp-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 Qt Charts module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** 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. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include "pentool.h"</span> <span class="preprocessor">#include <QtWidgets/QPushButton></span> <span class="preprocessor">#include <QtWidgets/QDoubleSpinBox></span> <span class="preprocessor">#include <QtWidgets/QComboBox></span> <span class="preprocessor">#include <QtWidgets/QFormLayout></span> <span class="preprocessor">#include <QtWidgets/QColorDialog></span> PenTool<span class="operator">::</span>PenTool(<span class="type">QString</span> title<span class="operator">,</span> <span class="type">QWidget</span> <span class="operator">*</span>parent) : <span class="type">QWidget</span>(parent) { setWindowTitle(title); setWindowFlags(<span class="type">Qt</span><span class="operator">::</span>Tool); m_colorButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(); m_widthSpinBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>(); m_styleCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"NoPen"</span>); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"SolidLine"</span>); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"DashLine"</span>); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"DotLine"</span>); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"DashDotLine"</span>); m_styleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"DashDotDotLine"</span>); m_capStyleCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(); m_capStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"FlatCap"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>FlatCap); m_capStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"SquareCap"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>SquareCap); m_capStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"RoundCap"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>RoundCap); m_joinStyleCombo <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(); m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"MiterJoin"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>MiterJoin); m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"BevelJoin"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>BevelJoin); m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"RoundJoin"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>RoundJoin); m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"SvgMiterJoin"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>SvgMiterJoin); <span class="type">QFormLayout</span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFormLayout</span>(); layout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Color"</span><span class="operator">,</span> m_colorButton); layout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Width"</span><span class="operator">,</span> m_widthSpinBox); layout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Style"</span><span class="operator">,</span> m_styleCombo); layout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Cap style"</span><span class="operator">,</span> m_capStyleCombo); layout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Join style"</span><span class="operator">,</span> m_joinStyleCombo); setLayout(layout); <span class="comment">// Use old style connect on some signals because the signal is overloaded</span> connect(m_colorButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>showColorDialog); connect(m_widthSpinBox<span class="operator">,</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>updateWidth); connect(m_styleCombo<span class="operator">,</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>updateStyle); connect(m_capStyleCombo<span class="operator">,</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>updateCapStyle); connect(m_joinStyleCombo<span class="operator">,</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>updateJoinStyle); } <span class="type">void</span> PenTool<span class="operator">::</span>setPen(<span class="keyword">const</span> <span class="type">QPen</span> <span class="operator">&</span>pen) { m_pen <span class="operator">=</span> pen; m_colorButton<span class="operator">-</span><span class="operator">></span>setText(m_pen<span class="operator">.</span>color()<span class="operator">.</span>name()); m_widthSpinBox<span class="operator">-</span><span class="operator">></span>setValue(m_pen<span class="operator">.</span>widthF()); m_styleCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(m_pen<span class="operator">.</span>style()); <span class="comment">// index matches the enum</span> m_capStyleCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(m_capStyleCombo<span class="operator">-</span><span class="operator">></span>findData(m_pen<span class="operator">.</span>capStyle())); m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>setCurrentIndex(m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>findData(m_pen<span class="operator">.</span>joinStyle())); } <span class="type">QPen</span> PenTool<span class="operator">::</span>pen() <span class="keyword">const</span> { <span class="keyword">return</span> m_pen; } <span class="type">QString</span> PenTool<span class="operator">::</span>name() { <span class="keyword">return</span> name(m_pen); } <span class="type">QString</span> PenTool<span class="operator">::</span>name(<span class="keyword">const</span> <span class="type">QPen</span> <span class="operator">&</span>pen) { <span class="keyword">return</span> pen<span class="operator">.</span>color()<span class="operator">.</span>name() <span class="operator">+</span> <span class="string">":"</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(pen<span class="operator">.</span>widthF()); } <span class="type">void</span> PenTool<span class="operator">::</span>showColorDialog() { <span class="type">QColorDialog</span> dialog(m_pen<span class="operator">.</span>color()); dialog<span class="operator">.</span>show(); dialog<span class="operator">.</span>exec(); m_pen<span class="operator">.</span>setColor(dialog<span class="operator">.</span>selectedColor()); m_colorButton<span class="operator">-</span><span class="operator">></span>setText(m_pen<span class="operator">.</span>color()<span class="operator">.</span>name()); <span class="keyword">emit</span> changed(); } <span class="type">void</span> PenTool<span class="operator">::</span>updateWidth(<span class="type">double</span> width) { <span class="keyword">if</span> (<span class="operator">!</span>qFuzzyCompare((<span class="type">qreal</span>) width<span class="operator">,</span> m_pen<span class="operator">.</span>widthF())) { m_pen<span class="operator">.</span>setWidthF(width); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> PenTool<span class="operator">::</span>updateStyle(<span class="type">int</span> style) { <span class="keyword">if</span> (m_pen<span class="operator">.</span>style() <span class="operator">!</span><span class="operator">=</span> style) { m_pen<span class="operator">.</span>setStyle((<span class="type">Qt</span><span class="operator">::</span>PenStyle) style); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> PenTool<span class="operator">::</span>updateCapStyle(<span class="type">int</span> index) { <span class="type">Qt</span><span class="operator">::</span>PenCapStyle capStyle <span class="operator">=</span> (<span class="type">Qt</span><span class="operator">::</span>PenCapStyle) m_capStyleCombo<span class="operator">-</span><span class="operator">></span>itemData(index)<span class="operator">.</span>toInt(); <span class="keyword">if</span> (m_pen<span class="operator">.</span>capStyle() <span class="operator">!</span><span class="operator">=</span> capStyle) { m_pen<span class="operator">.</span>setCapStyle(capStyle); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> PenTool<span class="operator">::</span>updateJoinStyle(<span class="type">int</span> index) { <span class="type">Qt</span><span class="operator">::</span>PenJoinStyle joinStyle <span class="operator">=</span> (<span class="type">Qt</span><span class="operator">::</span>PenJoinStyle) m_joinStyleCombo<span class="operator">-</span><span class="operator">></span>itemData(index)<span class="operator">.</span>toInt(); <span class="keyword">if</span> (m_pen<span class="operator">.</span>joinStyle() <span class="operator">!</span><span class="operator">=</span> joinStyle) { m_pen<span class="operator">.</span>setJoinStyle(joinStyle); <span class="keyword">emit</span> changed(); } } <span class="preprocessor">#include "moc_pentool.cpp"</span> </pre> </div> <!-- @@@piechartcustomization/pentool.cpp --> </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>