386 lines
31 KiB
HTML
386 lines
31 KiB
HTML
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<h1 class="title">chip.cpp Example File</h1>
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<span class="small-subtitle">demos/chip/chip.cpp</span>
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<!-- $$$demos/chip/chip.cpp-description -->
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<div class="descr"> <a name="details"></a>
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<pre class="cpp"> <span class="comment">/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/</span>
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<span class="preprocessor">#include "chip.h"</span>
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<span class="preprocessor">#include <QtGui></span>
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Chip<span class="operator">::</span>Chip(<span class="keyword">const</span> <span class="type"><a href="qcolor.html">QColor</a></span> <span class="operator">&</span>color<span class="operator">,</span> <span class="type">int</span> x<span class="operator">,</span> <span class="type">int</span> y)
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{
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<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>x <span class="operator">=</span> x;
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<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>y <span class="operator">=</span> y;
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<span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>color <span class="operator">=</span> color;
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setZValue((x <span class="operator">+</span> y) <span class="operator">%</span> <span class="number">2</span>);
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setFlags(ItemIsSelectable <span class="operator">|</span> ItemIsMovable);
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setAcceptsHoverEvents(<span class="keyword">true</span>);
|
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}
|
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<span class="type"><a href="qrectf.html">QRectF</a></span> Chip<span class="operator">::</span>boundingRect() <span class="keyword">const</span>
|
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{
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<span class="keyword">return</span> <span class="type"><a href="qrectf.html">QRectF</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">110</span><span class="operator">,</span> <span class="number">70</span>);
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}
|
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<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> Chip<span class="operator">::</span>shape() <span class="keyword">const</span>
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{
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<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> path;
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path<span class="operator">.</span>addRect(<span class="number">14</span><span class="operator">,</span> <span class="number">14</span><span class="operator">,</span> <span class="number">82</span><span class="operator">,</span> <span class="number">42</span>);
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<span class="keyword">return</span> path;
|
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}
|
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|
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<span class="type">void</span> Chip<span class="operator">::</span>paint(<span class="type"><a href="qpainter.html">QPainter</a></span> <span class="operator">*</span>painter<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstyleoptiongraphicsitem.html">QStyleOptionGraphicsItem</a></span> <span class="operator">*</span>option<span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget)
|
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{
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Q_UNUSED(widget);
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<span class="type"><a href="qcolor.html">QColor</a></span> fillColor <span class="operator">=</span> (option<span class="operator">-</span><span class="operator">></span>state <span class="operator">&</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>State_Selected) <span class="operator">?</span> color<span class="operator">.</span>dark(<span class="number">150</span>) : color;
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<span class="keyword">if</span> (option<span class="operator">-</span><span class="operator">></span>state <span class="operator">&</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>State_MouseOver)
|
|
fillColor <span class="operator">=</span> fillColor<span class="operator">.</span>light(<span class="number">125</span>);
|
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|
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<span class="keyword">const</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> lod <span class="operator">=</span> option<span class="operator">-</span><span class="operator">></span>levelOfDetailFromTransform(painter<span class="operator">-</span><span class="operator">></span>worldTransform());
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<span class="keyword">if</span> (lod <span class="operator"><</span> <span class="number">0.2</span>) {
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|
<span class="keyword">if</span> (lod <span class="operator"><</span> <span class="number">0.125</span>) {
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|
painter<span class="operator">-</span><span class="operator">></span>fillRect(<span class="type"><a href="qrectf.html">QRectF</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">110</span><span class="operator">,</span> <span class="number">70</span>)<span class="operator">,</span> fillColor);
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<span class="keyword">return</span>;
|
|
}
|
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|
|
<span class="type"><a href="qbrush.html">QBrush</a></span> b <span class="operator">=</span> painter<span class="operator">-</span><span class="operator">></span>brush();
|
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painter<span class="operator">-</span><span class="operator">></span>setBrush(fillColor);
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|
painter<span class="operator">-</span><span class="operator">></span>drawRect(<span class="number">13</span><span class="operator">,</span> <span class="number">13</span><span class="operator">,</span> <span class="number">97</span><span class="operator">,</span> <span class="number">57</span>);
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painter<span class="operator">-</span><span class="operator">></span>setBrush(b);
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|
<span class="keyword">return</span>;
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}
|
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|
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<span class="type"><a href="qpen.html">QPen</a></span> oldPen <span class="operator">=</span> painter<span class="operator">-</span><span class="operator">></span>pen();
|
|
<span class="type"><a href="qpen.html">QPen</a></span> pen <span class="operator">=</span> oldPen;
|
|
<span class="type">int</span> width <span class="operator">=</span> <span class="number">0</span>;
|
|
<span class="keyword">if</span> (option<span class="operator">-</span><span class="operator">></span>state <span class="operator">&</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>State_Selected)
|
|
width <span class="operator">+</span><span class="operator">=</span> <span class="number">2</span>;
|
|
|
|
pen<span class="operator">.</span>setWidth(width);
|
|
<span class="type"><a href="qbrush.html">QBrush</a></span> b <span class="operator">=</span> painter<span class="operator">-</span><span class="operator">></span>brush();
|
|
painter<span class="operator">-</span><span class="operator">></span>setBrush(<span class="type"><a href="qbrush.html">QBrush</a></span>(fillColor<span class="operator">.</span>dark(option<span class="operator">-</span><span class="operator">></span>state <span class="operator">&</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>State_Sunken <span class="operator">?</span> <span class="number">120</span> : <span class="number">100</span>)));
|
|
|
|
painter<span class="operator">-</span><span class="operator">></span>drawRect(<span class="type"><a href="qrect.html">QRect</a></span>(<span class="number">14</span><span class="operator">,</span> <span class="number">14</span><span class="operator">,</span> <span class="number">79</span><span class="operator">,</span> <span class="number">39</span>));
|
|
painter<span class="operator">-</span><span class="operator">></span>setBrush(b);
|
|
|
|
<span class="keyword">if</span> (lod <span class="operator">></span><span class="operator">=</span> <span class="number">1</span>) {
|
|
painter<span class="operator">-</span><span class="operator">></span>setPen(<span class="type"><a href="qpen.html">QPen</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>gray<span class="operator">,</span> <span class="number">1</span>));
|
|
painter<span class="operator">-</span><span class="operator">></span>drawLine(<span class="number">15</span><span class="operator">,</span> <span class="number">54</span><span class="operator">,</span> <span class="number">94</span><span class="operator">,</span> <span class="number">54</span>);
|
|
painter<span class="operator">-</span><span class="operator">></span>drawLine(<span class="number">94</span><span class="operator">,</span> <span class="number">53</span><span class="operator">,</span> <span class="number">94</span><span class="operator">,</span> <span class="number">15</span>);
|
|
painter<span class="operator">-</span><span class="operator">></span>setPen(<span class="type"><a href="qpen.html">QPen</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black<span class="operator">,</span> <span class="number">0</span>));
|
|
}
|
|
|
|
<span class="comment">// Draw text</span>
|
|
<span class="keyword">if</span> (lod <span class="operator">></span><span class="operator">=</span> <span class="number">2</span>) {
|
|
<span class="type"><a href="qfont.html">QFont</a></span> font(<span class="string">"Times"</span><span class="operator">,</span> <span class="number">10</span>);
|
|
font<span class="operator">.</span>setStyleStrategy(<span class="type"><a href="qfont.html">QFont</a></span><span class="operator">::</span>ForceOutline);
|
|
painter<span class="operator">-</span><span class="operator">></span>setFont(font);
|
|
painter<span class="operator">-</span><span class="operator">></span>save();
|
|
painter<span class="operator">-</span><span class="operator">></span>scale(<span class="number">0.1</span><span class="operator">,</span> <span class="number">0.1</span>);
|
|
painter<span class="operator">-</span><span class="operator">></span>drawText(<span class="number">170</span><span class="operator">,</span> <span class="number">180</span><span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"Model: VSC-2000 (Very Small Chip) at %1x%2"</span>)<span class="operator">.</span>arg(x)<span class="operator">.</span>arg(y));
|
|
painter<span class="operator">-</span><span class="operator">></span>drawText(<span class="number">170</span><span class="operator">,</span> <span class="number">200</span><span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"Serial number: DLWR-WEER-123L-ZZ33-SDSJ"</span>));
|
|
painter<span class="operator">-</span><span class="operator">></span>drawText(<span class="number">170</span><span class="operator">,</span> <span class="number">220</span><span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span>(<span class="string">"Manufacturer: Chip Manufacturer"</span>));
|
|
painter<span class="operator">-</span><span class="operator">></span>restore();
|
|
}
|
|
|
|
<span class="comment">// Draw lines</span>
|
|
<span class="type"><a href="qvarlengtharray.html">QVarLengthArray</a></span><span class="operator"><</span><span class="type"><a href="qlinef.html">QLineF</a></span><span class="operator">,</span> <span class="number">36</span><span class="operator">></span> lines;
|
|
<span class="keyword">if</span> (lod <span class="operator">></span><span class="operator">=</span> <span class="number">0.5</span>) {
|
|
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span><span class="operator">=</span> <span class="number">10</span>; i <span class="operator">+</span><span class="operator">=</span> (lod <span class="operator">></span> <span class="number">0.5</span> <span class="operator">?</span> <span class="number">1</span> : <span class="number">2</span>)) {
|
|
lines<span class="operator">.</span>append(<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">18</span> <span class="operator">+</span> <span class="number">7</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">13</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> <span class="number">7</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">5</span>));
|
|
lines<span class="operator">.</span>append(<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">18</span> <span class="operator">+</span> <span class="number">7</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">54</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> <span class="number">7</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">62</span>));
|
|
}
|
|
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span><span class="operator">=</span> <span class="number">6</span>; i <span class="operator">+</span><span class="operator">=</span> (lod <span class="operator">></span> <span class="number">0.5</span> <span class="operator">?</span> <span class="number">1</span> : <span class="number">2</span>)) {
|
|
lines<span class="operator">.</span>append(<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">5</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> i <span class="operator">*</span> <span class="number">5</span><span class="operator">,</span> <span class="number">13</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> i <span class="operator">*</span> <span class="number">5</span>));
|
|
lines<span class="operator">.</span>append(<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">94</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> i <span class="operator">*</span> <span class="number">5</span><span class="operator">,</span> <span class="number">102</span><span class="operator">,</span> <span class="number">18</span> <span class="operator">+</span> i <span class="operator">*</span> <span class="number">5</span>));
|
|
}
|
|
}
|
|
<span class="keyword">if</span> (lod <span class="operator">></span><span class="operator">=</span> <span class="number">0.4</span>) {
|
|
<span class="keyword">const</span> <span class="type"><a href="qlinef.html">QLineF</a></span> lineData<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> {
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">25</span><span class="operator">,</span> <span class="number">35</span><span class="operator">,</span> <span class="number">35</span><span class="operator">,</span> <span class="number">35</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">35</span><span class="operator">,</span> <span class="number">30</span><span class="operator">,</span> <span class="number">35</span><span class="operator">,</span> <span class="number">40</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">35</span><span class="operator">,</span> <span class="number">30</span><span class="operator">,</span> <span class="number">45</span><span class="operator">,</span> <span class="number">35</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">35</span><span class="operator">,</span> <span class="number">40</span><span class="operator">,</span> <span class="number">45</span><span class="operator">,</span> <span class="number">35</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">45</span><span class="operator">,</span> <span class="number">30</span><span class="operator">,</span> <span class="number">45</span><span class="operator">,</span> <span class="number">40</span>)<span class="operator">,</span>
|
|
<span class="type"><a href="qlinef.html">QLineF</a></span>(<span class="number">45</span><span class="operator">,</span> <span class="number">35</span><span class="operator">,</span> <span class="number">55</span><span class="operator">,</span> <span class="number">35</span>)
|
|
};
|
|
lines<span class="operator">.</span>append(lineData<span class="operator">,</span> <span class="number">6</span>);
|
|
}
|
|
painter<span class="operator">-</span><span class="operator">></span>drawLines(lines<span class="operator">.</span>data()<span class="operator">,</span> lines<span class="operator">.</span>size());
|
|
|
|
<span class="comment">// Draw red ink</span>
|
|
<span class="keyword">if</span> (stuff<span class="operator">.</span>size() <span class="operator">></span> <span class="number">1</span>) {
|
|
<span class="type"><a href="qpen.html">QPen</a></span> p <span class="operator">=</span> painter<span class="operator">-</span><span class="operator">></span>pen();
|
|
painter<span class="operator">-</span><span class="operator">></span>setPen(<span class="type"><a href="qpen.html">QPen</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>red<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>SolidLine<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundCap<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>RoundJoin));
|
|
painter<span class="operator">-</span><span class="operator">></span>setBrush(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoBrush);
|
|
<span class="type"><a href="qpainterpath.html">QPainterPath</a></span> path;
|
|
path<span class="operator">.</span>moveTo(stuff<span class="operator">.</span>first());
|
|
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">1</span>; i <span class="operator"><</span> stuff<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i)
|
|
path<span class="operator">.</span>lineTo(stuff<span class="operator">.</span>at(i));
|
|
painter<span class="operator">-</span><span class="operator">></span>drawPath(path);
|
|
painter<span class="operator">-</span><span class="operator">></span>setPen(p);
|
|
}
|
|
}
|
|
|
|
<span class="type">void</span> Chip<span class="operator">::</span>mousePressEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event)
|
|
{
|
|
<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">::</span>mousePressEvent(event);
|
|
update();
|
|
}
|
|
|
|
<span class="type">void</span> Chip<span class="operator">::</span>mouseMoveEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event)
|
|
{
|
|
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">></span>modifiers() <span class="operator">&</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ShiftModifier) {
|
|
stuff <span class="operator"><</span><span class="operator"><</span> event<span class="operator">-</span><span class="operator">></span>pos();
|
|
update();
|
|
<span class="keyword">return</span>;
|
|
}
|
|
<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">::</span>mouseMoveEvent(event);
|
|
}
|
|
|
|
<span class="type">void</span> Chip<span class="operator">::</span>mouseReleaseEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event)
|
|
{
|
|
<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">::</span>mouseReleaseEvent(event);
|
|
update();
|
|
}</pre>
|
|
</div>
|
|
<!-- @@@demos/chip/chip.cpp -->
|
|
</div>
|
|
</div>
|
|
</div>
|
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<div class="ft">
|
|
<span></span>
|
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</div>
|
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</div>
|
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<div class="footer">
|
|
<p>
|
|
<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
|
|
Documentation contributions included herein are the copyrights of
|
|
their respective owners.</p>
|
|
<br />
|
|
<p>
|
|
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.</p>
|
|
<p>
|
|
Documentation sources may be obtained from <a href="http://www.qt-project.org">
|
|
www.qt-project.org</a>.</p>
|
|
<br />
|
|
<p>
|
|
Qt and respective logos are trademarks of The Qt Company Ltd
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|
in Finland and/or other countries worldwide. All other trademarks are property
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of their respective owners. <a title="Privacy Policy"
|
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href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p>
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