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Diffstat (limited to 'src/libs/utils/classnamevalidatinglineedit.cpp')
-rw-r--r-- | src/libs/utils/classnamevalidatinglineedit.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/libs/utils/classnamevalidatinglineedit.cpp b/src/libs/utils/classnamevalidatinglineedit.cpp new file mode 100644 index 0000000000..b52758eda5 --- /dev/null +++ b/src/libs/utils/classnamevalidatinglineedit.cpp @@ -0,0 +1,137 @@ +/*************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Qt Software Information (qt-info@nokia.com) +** +** +** Non-Open Source Usage +** +** Licensees may use this file in accordance with the Qt Beta Version +** License Agreement, Agreement version 2.2 provided with the Software or, +** alternatively, in accordance with the terms contained in a written +** agreement between you and Nokia. +** +** GNU General Public License Usage +** +** Alternatively, this file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the packaging +** of this file. Please review the following information to ensure GNU +** General Public Licensing requirements will be met: +** +** http://www.fsf.org/licensing/licenses/info/GPLv2.html and +** http://www.gnu.org/copyleft/gpl.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt GPL Exception version +** 1.2, included in the file GPL_EXCEPTION.txt in this package. +** +***************************************************************************/ +#include "classnamevalidatinglineedit.h" + +#include <QtCore/QDebug> +#include <QtCore/QRegExp> + +namespace Core { +namespace Utils { + +struct ClassNameValidatingLineEditPrivate { + ClassNameValidatingLineEditPrivate(); + + const QRegExp m_nameRegexp; + const QString m_namespaceDelimiter; + bool m_namespacesEnabled; +}; + +// Match something like "Namespace1::Namespace2::ClassName". +ClassNameValidatingLineEditPrivate:: ClassNameValidatingLineEditPrivate() : + m_nameRegexp(QLatin1String("[a-zA-Z_][a-zA-Z0-9_]*(::[a-zA-Z_][a-zA-Z0-9_]*)*")), + m_namespaceDelimiter(QLatin1String("::")), + m_namespacesEnabled(false) +{ + Q_ASSERT(m_nameRegexp.isValid()); +} + +// --------------------- ClassNameValidatingLineEdit +ClassNameValidatingLineEdit::ClassNameValidatingLineEdit(QWidget *parent) : + Core::Utils::BaseValidatingLineEdit(parent), + m_d(new ClassNameValidatingLineEditPrivate) +{ +} + +ClassNameValidatingLineEdit::~ClassNameValidatingLineEdit() +{ + delete m_d; +} + +bool ClassNameValidatingLineEdit::namespacesEnabled() const +{ + return m_d->m_namespacesEnabled; +} + +void ClassNameValidatingLineEdit::setNamespacesEnabled(bool b) +{ + m_d->m_namespacesEnabled = b; +} + +bool ClassNameValidatingLineEdit::validate(const QString &value, QString *errorMessage) const +{ + if (!m_d->m_namespacesEnabled && value.contains(QLatin1Char(':'))) { + if (errorMessage) + *errorMessage = tr("The class name must not contain namespace delimiters."); + return false; + } + if (!m_d->m_nameRegexp.exactMatch(value)) { + if (errorMessage) + *errorMessage = tr("The class name contains invalid characters."); + return false; + } + return true; +} + +void ClassNameValidatingLineEdit::slotChanged(const QString &t) +{ + Core::Utils::BaseValidatingLineEdit::slotChanged(t); + if (isValid()) { + // Suggest file names, strip namespaces + QString fileName = t.toLower(); + if (m_d->m_namespacesEnabled) { + const int namespaceIndex = fileName.lastIndexOf(m_d->m_namespaceDelimiter); + if (namespaceIndex != -1) + fileName.remove(0, namespaceIndex + m_d->m_namespaceDelimiter.size()); + } + emit updateFileName(fileName); + } +} + +QString ClassNameValidatingLineEdit::createClassName(const QString &name) +{ + // Remove spaces and convert the adjacent characters to uppercase + QString className = name; + QRegExp spaceMatcher(QLatin1String(" +(\\w)"), Qt::CaseSensitive, QRegExp::RegExp2); + Q_ASSERT(spaceMatcher.isValid()); + int pos; + while ((pos = spaceMatcher.indexIn(className)) != -1) { + className.replace(pos, spaceMatcher.matchedLength(), + spaceMatcher.cap(1).toUpper()); + } + + // Filter out any remaining invalid characters + className.remove(QRegExp(QLatin1String("[^a-zA-Z0-9_]"))); + + // If the first character is numeric, prefix the name with a "_" + if (className.at(0).isNumber()) { + className.prepend(QLatin1Char('_')); + } else { + // Convert the first character to uppercase + className.replace(0, 1, className.left(1).toUpper()); + } + + return className; +} + +} +} |