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<h1 class="title">regexpdialog.cpp Example File</h1>
<span class="small-subtitle">tools/regexp/regexpdialog.cpp</span>
<!-- $$$tools/regexp/regexpdialog.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 Digia Plc and its Subsidiary(-ies) 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">#include <QtGui></span>
<span class="preprocessor">#include "regexpdialog.h"</span>
RegExpDialog<span class="operator">::</span>RegExpDialog(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qdialog.html">QDialog</a></span>(parent)
{
patternComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
patternComboBox<span class="operator">-</span><span class="operator">></span>setEditable(<span class="keyword">true</span>);
patternComboBox<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span>
<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Preferred);
patternLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"&Pattern:"</span>));
patternLabel<span class="operator">-</span><span class="operator">></span>setBuddy(patternComboBox);
escapedPatternLineEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>;
escapedPatternLineEdit<span class="operator">-</span><span class="operator">></span>setReadOnly(<span class="keyword">true</span>);
<span class="type"><a href="qpalette.html">QPalette</a></span> palette <span class="operator">=</span> escapedPatternLineEdit<span class="operator">-</span><span class="operator">></span>palette();
palette<span class="operator">.</span>setBrush(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Base<span class="operator">,</span>
palette<span class="operator">.</span>brush(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Disabled<span class="operator">,</span> <span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Base));
escapedPatternLineEdit<span class="operator">-</span><span class="operator">></span>setPalette(palette);
escapedPatternLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"&Escaped Pattern:"</span>));
escapedPatternLabel<span class="operator">-</span><span class="operator">></span>setBuddy(escapedPatternLineEdit);
syntaxComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
syntaxComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Regular expression v1"</span>)<span class="operator">,</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>RegExp);
syntaxComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Regular expression v2"</span>)<span class="operator">,</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>RegExp2);
syntaxComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Wildcard"</span>)<span class="operator">,</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>Wildcard);
syntaxComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Fixed string"</span>)<span class="operator">,</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>FixedString);
syntaxComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"W3C Xml Schema 1.1"</span>)<span class="operator">,</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>W3CXmlSchema11);
syntaxLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"&Pattern Syntax:"</span>));
syntaxLabel<span class="operator">-</span><span class="operator">></span>setBuddy(syntaxComboBox);
textComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>;
textComboBox<span class="operator">-</span><span class="operator">></span>setEditable(<span class="keyword">true</span>);
textComboBox<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Preferred);
textLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"&Text:"</span>));
textLabel<span class="operator">-</span><span class="operator">></span>setBuddy(textComboBox);
caseSensitiveCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcheckbox.html">QCheckBox</a></span>(tr(<span class="string">"Case &Sensitive"</span>));
caseSensitiveCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
minimalCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcheckbox.html">QCheckBox</a></span>(tr(<span class="string">"&Minimal"</span>));
indexLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Index of Match:"</span>));
indexEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>;
indexEdit<span class="operator">-</span><span class="operator">></span>setReadOnly(<span class="keyword">true</span>);
matchedLengthLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Matched Length:"</span>));
matchedLengthEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>;
matchedLengthEdit<span class="operator">-</span><span class="operator">></span>setReadOnly(<span class="keyword">true</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> MaxCaptures; <span class="operator">+</span><span class="operator">+</span>i) {
captureLabels<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Capture %1:"</span>)<span class="operator">.</span>arg(i));
captureEdits<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>;
captureEdits<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setReadOnly(<span class="keyword">true</span>);
}
captureLabels<span class="operator">[</span><span class="number">0</span><span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Match:"</span>));
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>checkBoxLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
checkBoxLayout<span class="operator">-</span><span class="operator">></span>addWidget(caseSensitiveCheckBox);
checkBoxLayout<span class="operator">-</span><span class="operator">></span>addWidget(minimalCheckBox);
checkBoxLayout<span class="operator">-</span><span class="operator">></span>addStretch(<span class="number">1</span>);
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>;
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(patternLabel<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(patternComboBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(escapedPatternLabel<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(escapedPatternLineEdit<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(syntaxLabel<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(syntaxComboBox<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(checkBoxLayout<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(textLabel<span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(textComboBox<span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(indexLabel<span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(indexEdit<span class="operator">,</span> <span class="number">5</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(matchedLengthLabel<span class="operator">,</span> <span class="number">6</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(matchedLengthEdit<span class="operator">,</span> <span class="number">6</span><span class="operator">,</span> <span class="number">1</span>);
<span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> MaxCaptures; <span class="operator">+</span><span class="operator">+</span>j) {
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(captureLabels<span class="operator">[</span>j<span class="operator">]</span><span class="operator">,</span> <span class="number">7</span> <span class="operator">+</span> j<span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(captureEdits<span class="operator">[</span>j<span class="operator">]</span><span class="operator">,</span> <span class="number">7</span> <span class="operator">+</span> j<span class="operator">,</span> <span class="number">1</span>);
}
setLayout(mainLayout);
connect(patternComboBox<span class="operator">,</span> SIGNAL(editTextChanged(<span class="type"><a href="qstring.html">QString</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(refresh()));
connect(textComboBox<span class="operator">,</span> SIGNAL(editTextChanged(<span class="type"><a href="qstring.html">QString</a></span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(refresh()));
connect(caseSensitiveCheckBox<span class="operator">,</span> SIGNAL(toggled(<span class="type">bool</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(refresh()));
connect(minimalCheckBox<span class="operator">,</span> SIGNAL(toggled(<span class="type">bool</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(refresh()));
connect(syntaxComboBox<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type">int</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(refresh()));
patternComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"[A-Za-z_]+([A-Za-z_0-9]*)"</span>));
textComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"(10 + delta4) * 32"</span>));
setWindowTitle(tr(<span class="string">"RegExp"</span>));
setFixedHeight(sizeHint()<span class="operator">.</span>height());
refresh();
}
<span class="type">void</span> RegExpDialog<span class="operator">::</span>refresh()
{
setUpdatesEnabled(<span class="keyword">false</span>);
<span class="type"><a href="qstring.html">QString</a></span> pattern <span class="operator">=</span> patternComboBox<span class="operator">-</span><span class="operator">></span>currentText();
<span class="type"><a href="qstring.html">QString</a></span> text <span class="operator">=</span> textComboBox<span class="operator">-</span><span class="operator">></span>currentText();
<span class="type"><a href="qstring.html">QString</a></span> escaped <span class="operator">=</span> pattern;
escaped<span class="operator">.</span>replace(<span class="string">"\\"</span><span class="operator">,</span> <span class="string">"\\\\"</span>);
escaped<span class="operator">.</span>replace(<span class="string">"\""</span><span class="operator">,</span> <span class="string">"\\\""</span>);
escaped<span class="operator">.</span>prepend(<span class="string">"\""</span>);
escaped<span class="operator">.</span>append(<span class="string">"\""</span>);
escapedPatternLineEdit<span class="operator">-</span><span class="operator">></span>setText(escaped);
<span class="type"><a href="qregexp.html">QRegExp</a></span> rx(pattern);
<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CaseSensitivity cs <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive;
<span class="keyword">if</span> (caseSensitiveCheckBox<span class="operator">-</span><span class="operator">></span>isChecked())
cs <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CaseSensitive;
rx<span class="operator">.</span>setCaseSensitivity(cs);
rx<span class="operator">.</span>setMinimal(minimalCheckBox<span class="operator">-</span><span class="operator">></span>isChecked());
<span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>PatternSyntax syntax <span class="operator">=</span> <span class="type"><a href="qregexp.html">QRegExp</a></span><span class="operator">::</span>PatternSyntax(
syntaxComboBox<span class="operator">-</span><span class="operator">></span>itemData(syntaxComboBox<span class="operator">-</span><span class="operator">></span>currentIndex())<span class="operator">.</span>toInt());
rx<span class="operator">.</span>setPatternSyntax(syntax);
<span class="type"><a href="qpalette.html">QPalette</a></span> palette <span class="operator">=</span> patternComboBox<span class="operator">-</span><span class="operator">></span>palette();
<span class="keyword">if</span> (rx<span class="operator">.</span>isValid()) {
palette<span class="operator">.</span>setColor(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Text<span class="operator">,</span>
textComboBox<span class="operator">-</span><span class="operator">></span>palette()<span class="operator">.</span>color(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Text));
} <span class="keyword">else</span> {
palette<span class="operator">.</span>setColor(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Text<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>red);
}
patternComboBox<span class="operator">-</span><span class="operator">></span>setPalette(palette);
indexEdit<span class="operator">-</span><span class="operator">></span>setText(<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(rx<span class="operator">.</span>indexIn(text)));
matchedLengthEdit<span class="operator">-</span><span class="operator">></span>setText(<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(rx<span class="operator">.</span>matchedLength()));
<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> MaxCaptures; <span class="operator">+</span><span class="operator">+</span>i) {
captureLabels<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setEnabled(i <span class="operator"><</span><span class="operator">=</span> rx<span class="operator">.</span>captureCount());
captureEdits<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setEnabled(i <span class="operator"><</span><span class="operator">=</span> rx<span class="operator">.</span>captureCount());
captureEdits<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setText(rx<span class="operator">.</span>cap(i));
}
setUpdatesEnabled(<span class="keyword">true</span>);
}</pre>
</div>
<!-- @@@tools/regexp/regexpdialog.cpp -->
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