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Diffstat (limited to 'examples/widgets/tools/regexp/regexpdialog.cpp')
-rw-r--r-- | examples/widgets/tools/regexp/regexpdialog.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/examples/widgets/tools/regexp/regexpdialog.cpp b/examples/widgets/tools/regexp/regexpdialog.cpp new file mode 100644 index 0000000000..178433ee34 --- /dev/null +++ b/examples/widgets/tools/regexp/regexpdialog.cpp @@ -0,0 +1,188 @@ +/**************************************************************************** +** +** Copyright (C) 2012 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets> + +#include "regexpdialog.h" + +RegExpDialog::RegExpDialog(QWidget *parent) + : QDialog(parent) +{ + patternComboBox = new QComboBox; + patternComboBox->setEditable(true); + patternComboBox->setSizePolicy(QSizePolicy::Expanding, + QSizePolicy::Preferred); + + patternLabel = new QLabel(tr("&Pattern:")); + patternLabel->setBuddy(patternComboBox); + + escapedPatternLineEdit = new QLineEdit; + escapedPatternLineEdit->setReadOnly(true); + QPalette palette = escapedPatternLineEdit->palette(); + palette.setBrush(QPalette::Base, + palette.brush(QPalette::Disabled, QPalette::Base)); + escapedPatternLineEdit->setPalette(palette); + + escapedPatternLabel = new QLabel(tr("&Escaped Pattern:")); + escapedPatternLabel->setBuddy(escapedPatternLineEdit); + + syntaxComboBox = new QComboBox; + syntaxComboBox->addItem(tr("Regular expression v1"), QRegExp::RegExp); + syntaxComboBox->addItem(tr("Regular expression v2"), QRegExp::RegExp2); + syntaxComboBox->addItem(tr("Wildcard"), QRegExp::Wildcard); + syntaxComboBox->addItem(tr("Fixed string"), QRegExp::FixedString); + syntaxComboBox->addItem(tr("W3C Xml Schema 1.1"), QRegExp::W3CXmlSchema11); + + syntaxLabel = new QLabel(tr("&Pattern Syntax:")); + syntaxLabel->setBuddy(syntaxComboBox); + + textComboBox = new QComboBox; + textComboBox->setEditable(true); + textComboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); + + textLabel = new QLabel(tr("&Text:")); + textLabel->setBuddy(textComboBox); + + caseSensitiveCheckBox = new QCheckBox(tr("Case &Sensitive")); + caseSensitiveCheckBox->setChecked(true); + minimalCheckBox = new QCheckBox(tr("&Minimal")); + + indexLabel = new QLabel(tr("Index of Match:")); + indexEdit = new QLineEdit; + indexEdit->setReadOnly(true); + + matchedLengthLabel = new QLabel(tr("Matched Length:")); + matchedLengthEdit = new QLineEdit; + matchedLengthEdit->setReadOnly(true); + + for (int i = 0; i < MaxCaptures; ++i) { + captureLabels[i] = new QLabel(tr("Capture %1:").arg(i)); + captureEdits[i] = new QLineEdit; + captureEdits[i]->setReadOnly(true); + } + captureLabels[0]->setText(tr("Match:")); + + QHBoxLayout *checkBoxLayout = new QHBoxLayout; + checkBoxLayout->addWidget(caseSensitiveCheckBox); + checkBoxLayout->addWidget(minimalCheckBox); + checkBoxLayout->addStretch(1); + + QGridLayout *mainLayout = new QGridLayout; + mainLayout->addWidget(patternLabel, 0, 0); + mainLayout->addWidget(patternComboBox, 0, 1); + mainLayout->addWidget(escapedPatternLabel, 1, 0); + mainLayout->addWidget(escapedPatternLineEdit, 1, 1); + mainLayout->addWidget(syntaxLabel, 2, 0); + mainLayout->addWidget(syntaxComboBox, 2, 1); + mainLayout->addLayout(checkBoxLayout, 3, 0, 1, 2); + mainLayout->addWidget(textLabel, 4, 0); + mainLayout->addWidget(textComboBox, 4, 1); + mainLayout->addWidget(indexLabel, 5, 0); + mainLayout->addWidget(indexEdit, 5, 1); + mainLayout->addWidget(matchedLengthLabel, 6, 0); + mainLayout->addWidget(matchedLengthEdit, 6, 1); + + for (int j = 0; j < MaxCaptures; ++j) { + mainLayout->addWidget(captureLabels[j], 7 + j, 0); + mainLayout->addWidget(captureEdits[j], 7 + j, 1); + } + setLayout(mainLayout); + + connect(patternComboBox, SIGNAL(editTextChanged(QString)), + this, SLOT(refresh())); + connect(textComboBox, SIGNAL(editTextChanged(QString)), + this, SLOT(refresh())); + connect(caseSensitiveCheckBox, SIGNAL(toggled(bool)), + this, SLOT(refresh())); + connect(minimalCheckBox, SIGNAL(toggled(bool)), this, SLOT(refresh())); + connect(syntaxComboBox, SIGNAL(currentIndexChanged(int)), + this, SLOT(refresh())); + + patternComboBox->addItem(tr("[A-Za-z_]+([A-Za-z_0-9]*)")); + textComboBox->addItem(tr("(10 + delta4) * 32")); + + setWindowTitle(tr("RegExp")); + setFixedHeight(sizeHint().height()); + refresh(); +} + +void RegExpDialog::refresh() +{ + setUpdatesEnabled(false); + + QString pattern = patternComboBox->currentText(); + QString text = textComboBox->currentText(); + + QString escaped = pattern; + escaped.replace("\\", "\\\\"); + escaped.replace("\"", "\\\""); + escaped.prepend("\""); + escaped.append("\""); + escapedPatternLineEdit->setText(escaped); + + QRegExp rx(pattern); + Qt::CaseSensitivity cs = Qt::CaseInsensitive; + if (caseSensitiveCheckBox->isChecked()) + cs = Qt::CaseSensitive; + rx.setCaseSensitivity(cs); + rx.setMinimal(minimalCheckBox->isChecked()); + QRegExp::PatternSyntax syntax = QRegExp::PatternSyntax( + syntaxComboBox->itemData(syntaxComboBox->currentIndex()).toInt()); + rx.setPatternSyntax(syntax); + + QPalette palette = patternComboBox->palette(); + if (rx.isValid()) { + palette.setColor(QPalette::Text, + textComboBox->palette().color(QPalette::Text)); + } else { + palette.setColor(QPalette::Text, Qt::red); + } + patternComboBox->setPalette(palette); + + indexEdit->setText(QString::number(rx.indexIn(text))); + matchedLengthEdit->setText(QString::number(rx.matchedLength())); + for (int i = 0; i < MaxCaptures; ++i) { + captureLabels[i]->setEnabled(i <= rx.captureCount()); + captureEdits[i]->setEnabled(i <= rx.captureCount()); + captureEdits[i]->setText(rx.cap(i)); + } + + setUpdatesEnabled(true); +} |