CppTools: Add some methods to the JsExpander.

Make some C++ related methods available to the JsExpander. These
are concerned with namespace handling, etc.

Change-Id: I2fc3807cf421b817bb103b727606a78aee290652
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/cpptools/cpptoolsjsextension.cpp

@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "cpptoolsjsextension.h"
+
+#include "cppfilesettingspage.h"
+
+#include <coreplugin/icore.h>
+
+#include <utils/codegeneration.h>
+#include <utils/fileutils.h>
+
+#include <QFileInfo>
+#include <QTextStream>
+
+namespace CppTools {
+namespace Internal {
+
+QString CppToolsJsExtension::headerGuard(const QString &in) const
+{
+    return Utils::headerGuard(in);
+}
+
+QString CppToolsJsExtension::fileName(const QString &path, const QString &extension) const
+{
+    QString raw = Utils::FileName::fromString(path, extension).toString();
+    CppFileSettings settings;
+    settings.fromSettings(Core::ICore::settings());
+    if (!settings.lowerCaseFiles)
+        return raw;
+
+    QFileInfo fi = QFileInfo(raw);
+    QString finalPath = fi.path();
+    if (finalPath == QStringLiteral("."))
+        finalPath.clear();
+    if (!finalPath.isEmpty() && !finalPath.endsWith(QLatin1Char('/')))
+        finalPath += QLatin1Char('/');
+    QString name = fi.baseName().toLower();
+    QString ext = fi.completeSuffix();
+    if (!ext.isEmpty())
+        ext = QString(QLatin1Char('.')) + ext;
+    return finalPath + name + ext;
+}
+
+
+static QStringList parts(const QString &klass)
+{
+    return klass.split(QStringLiteral("::"));
+}
+
+QStringList CppToolsJsExtension::namespaces(const QString &klass) const
+{
+    QStringList result = parts(klass);
+    result.removeLast();
+    return result;
+}
+
+QString CppToolsJsExtension::className(const QString &klass) const
+{
+    QStringList result = parts(klass);
+    return result.last();
+}
+
+QString CppToolsJsExtension::classToFileName(const QString &klass, const QString &extension) const
+{
+    return fileName(className(klass), extension);
+}
+
+QString CppToolsJsExtension::classToHeaderGuard(const QString &klass, const QString &extension) const
+{
+    return Utils::headerGuard(fileName(className(klass), extension), namespaces(klass));
+}
+
+QString CppToolsJsExtension::openNamespaces(const QString &klass) const
+{
+    QString result;
+    QTextStream str(&result);
+    Utils::writeOpeningNameSpaces(namespaces(klass), QString(), str);
+    return result;
+}
+
+QString CppToolsJsExtension::closeNamespaces(const QString &klass) const
+{
+    QString result;
+    QTextStream str(&result);
+    Utils::writeClosingNameSpaces(namespaces(klass), QString(), str);
+    return result;
+}
+
+} // namespace Internal
+} // namespace CppTools