Long live Qt 4.5!

1 files changed, 225 insertions, 0 deletions

diff --git a/src/tools/uic3/qt3to4.cpp b/src/tools/uic3/qt3to4.cpp
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+++ b/src/tools/uic3/qt3to4.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 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 the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qt3to4.h"
+
+#include <QApplication>
+#include <QDir>
+#include <QFile>
+#include <QHash>
+#include <QLibraryInfo>
+#include <QXmlDefaultHandler>
+#include <QXmlSimpleReader>
+
+QT_BEGIN_NAMESPACE
+
+class ContentHandler: public QXmlDefaultHandler
+{
+public:
+    typedef QPair<QString, QString> Rule;
+    typedef QList<Rule> RuleList;
+
+public:
+    ContentHandler() {}
+
+    inline RuleList renamedHeaders() const
+    { return rules(QString::fromLatin1("RenamedHeader")); }
+
+    inline RuleList renamedClasses() const
+    { return rules(QString::fromLatin1("RenamedClass")); }
+
+    inline RuleList renamedEnums() const
+    { return rules(QString::fromLatin1("RenamedEnumvalue")); }
+
+    inline RuleList rules(const QString &kind) const
+    { return m_rules.value(kind); }
+
+    virtual bool startDocument()
+    {
+        m_rules.clear();
+        m_state.current.clear();
+        m_state.kind.clear();
+        m_state.q3.clear();
+        m_state.q4.clear();
+
+        return true;
+    }
+
+    virtual bool startElement(const QString &, const QString &, const QString &qName, const QXmlAttributes &attrs)
+    {
+        if (qName == QLatin1String("item")) {
+            m_state.kind = attrs.value(QLatin1String("Type"));
+
+            m_state.current.clear();
+            m_state.q3.clear();
+            m_state.q4.clear();
+
+            if (!m_rules.contains(m_state.kind))
+                m_rules[m_state.kind].clear();
+
+            return true;
+        }
+
+        return true; // ### only if it is a valid tag
+    }
+
+
+    virtual bool endElement(const QString &, const QString &, const QString &qName)
+    {
+        if (qName == QLatin1String("Qt3")) {
+            m_state.q3 = m_state.current.trimmed();
+        } else if (qName == QLatin1String("Qt4")) {
+            m_state.q4 = m_state.current.trimmed();
+        } else if (qName == QLatin1String("item")
+                   && (m_state.kind == QLatin1String("RenamedHeader")
+                       || m_state.kind == QLatin1String("RenamedEnumvalue")
+                       || m_state.kind == QLatin1String("RenamedClass"))) {
+            Rule r(m_state.q3, m_state.q4);
+            m_rules[m_state.kind].append(r);
+        }
+
+        m_state.current.clear();
+        return true;
+    }
+
+    virtual bool characters(const QString &ch)
+    { m_state.current += ch; return true; }
+
+    virtual bool error(const QXmlParseException &e)
+    { Q_UNUSED(e); Q_ASSERT(0); return true; }
+
+    virtual bool fatalError(const QXmlParseException &e)
+    { Q_UNUSED(e); Q_ASSERT(0); return true; }
+
+    virtual bool warning(const QXmlParseException &e)
+    { Q_UNUSED(e); Q_ASSERT(0); return true; }
+
+private:
+    QHash<QString, RuleList> m_rules;
+
+    struct state
+    {
+        QString current;
+        QString kind;
+        QString q3;
+        QString q4;
+    } m_state;
+};
+
+void Porting::readXML(RuleList *renamedHeaders, RuleList *renamedClasses, RuleList *renamedEnums)
+{
+    QString fileName = QLatin1String("q3porting.xml");
+    QString filePath;
+    //check QLibraryInfo::DataPath/filename
+    filePath = QDir::cleanPath(QLibraryInfo::location(QLibraryInfo::DataPath) + QLatin1String("/") + fileName)  ;
+
+    //check QLibraryInfo::PrefixPath/tools/porting/src/filename
+    if (!QFile::exists(filePath))
+        filePath = QDir::cleanPath(QLibraryInfo::location(QLibraryInfo::PrefixPath) + QLatin1String("/tools/porting/src/") + fileName);
+
+    // for bootstrapping, look in the rules file in a location
+    // relative to where it would be in the source tree
+    if (!QFile::exists(filePath))
+        filePath = QDir::cleanPath(QApplication::instance()->applicationDirPath() + QLatin1String("/../tools/porting/src/") + fileName);
+
+    if (!QFile::exists(filePath)) {
+        fprintf(stderr, "Error: Could not find rules file: %s\n", fileName.toLatin1().constData());
+        Q_ASSERT(0);
+    }
+
+    ContentHandler handler;
+
+    QXmlSimpleReader reader;
+    reader.setContentHandler(&handler);
+    reader.setErrorHandler(&handler);
+
+    QFile file(filePath);
+    file.open(QFile::ReadOnly);
+
+    QXmlInputSource source(file);
+    bool ok = reader.parse(&source);
+    Q_UNUSED(ok);
+    Q_ASSERT(ok);
+
+    if (renamedHeaders)
+        *renamedHeaders = handler.renamedHeaders();
+    if (renamedClasses)
+        *renamedClasses = handler.renamedClasses();
+    if (renamedEnums)
+        *renamedEnums = handler.renamedEnums();
+
+}
+
+Porting::Porting()
+{
+    readXML(&m_renamedHeaders, &m_renamedClasses, &m_renamedEnums);
+}
+
+int Porting::findRule(const RuleList &rules, const QString &q3)
+{
+    for (int i=0; i<rules.count(); ++i)
+        if (rules.at(i).first == q3)
+            return i;
+    return -1;
+}
+
+QString Porting::renameHeader(const QString &headerName) const
+{
+    int index = findRule(m_renamedHeaders, headerName);
+    return index == -1 ? headerName : m_renamedHeaders.at(index).second;
+}
+
+QString Porting::renameClass(const QString &className) const
+{
+    if (className == QLatin1String("QSplitter"))  // We don't want a Q3Splitter, ever!
+        return className;
+
+    int index = findRule(m_renamedClasses, className);
+    return index == -1 ? className : m_renamedClasses.at(index).second;
+}
+
+QString Porting::renameEnumerator(const QString &enumName) const
+{
+    int index = findRule(m_renamedEnums, enumName);
+    return index == -1 ? QString() : m_renamedEnums.at(index).second;
+}
+
+QT_END_NAMESPACE