Long live Qt 4.5!

1 files changed, 240 insertions, 0 deletions

diff --git a/tools/qconfig/feature.cpp b/tools/qconfig/feature.cpp
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+++ b/tools/qconfig/feature.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 "feature.h"
+#include <QTextStream>
+#include <QRegExp>
+#include <QLibraryInfo>
+#include <QFileInfo>
+#include <QApplication>
+#include <QPalette>
+
+QT_BEGIN_NAMESPACE
+
+QMap<QString, Feature*> Feature::instances;
+
+Feature* Feature::getInstance(const QString &key)
+{
+    QString ukey = key.toUpper();
+    if (!instances.contains(ukey))
+        instances[ukey] = new Feature(ukey);
+    return instances[ukey];
+}
+
+Feature::~Feature()
+{
+    delete d;
+}
+
+void Feature::clear()
+{
+    foreach (Feature *f, instances.values())
+        delete f;
+    instances.clear();
+}
+
+static QString listToHtml(const QString &title, const QStringList &list)
+{
+    if (list.isEmpty())
+	return QString();
+
+    QString str;
+    QTextStream stream(&str);
+
+    stream << "<h3>" << title << ":</h3>";
+    stream << "<ul>";
+    foreach (QString l, list)
+	stream << "<li>" << l << "</li>";
+    stream << "</ul>";
+
+    return str;
+}
+
+static QString listToHtml(const QString &title, const QList<Feature*> &list)
+{
+    QStringList stringlist;
+    foreach (Feature *f, list) {
+        QString s("[%3] <a href=\"feature://%1\">%2</a>");
+        s = s.arg(f->key()).arg(f->key());
+        s = s.arg(f->selectable() && f->enabled() ? "On" : "Off");
+        stringlist << s;
+    }
+    return listToHtml(title, stringlist);
+}
+
+static QString linkify(const QString &src)
+{
+    static QRegExp classRegexp("\\b(Q[\\w]+)");
+    QString docRoot = QLibraryInfo::location(QLibraryInfo::DocumentationPath);
+    QString result = src;
+    int pos = 0;
+    while ((pos = classRegexp.indexIn(result, pos)) != -1) {
+        QString className = classRegexp.cap(1);
+        QString file = docRoot + "/html/" + className.toLower() + ".html";
+        QFileInfo info(file);
+        if (info.isFile()) {
+            QString link = QString("<a href=\"file://%1\">%2</a>")
+                           .arg(file).arg(className);
+            result.replace(pos, className.length(), link);
+            pos += link.length();
+        } else {
+            pos += className.length();
+        }
+    }
+
+    return result;
+}
+
+QString Feature::toHtml() const
+{
+    QString str;
+    QTextStream stream(&str);
+
+    const QString linkColor = QApplication::palette().color(QPalette::Link).name();
+    stream << "<h2><font size=\"+2\" color=\"" << linkColor << "\">"
+           << key() << "</font></h2>"
+	   << "<h2><font size=\"+2\">" << title() << "</font></h2>";
+    if (!description().isEmpty())
+        stream << "<p>" << description() << "</p>";
+    stream << listToHtml("Section", QStringList(section()))
+	   << listToHtml("Requires", dependencies())
+	   << listToHtml("Required for", supports())
+	   << listToHtml("See also", relations());
+
+    return linkify(str);
+}
+
+Feature::Feature(const QString &key) : d(new FeaturePrivate(key)) {}
+
+void Feature::setTitle(const QString &title)
+{
+    d->title = title;
+}
+
+void Feature::setSection(const QString &section)
+{
+    d->section = section;
+}
+
+void Feature::setDescription(const QString &description)
+{
+    d->description = description;
+}
+
+void Feature::addRelation(const QString &key)
+{
+    d->relations.insert(getInstance(key));
+}
+
+void Feature::setRelations(const QStringList &keys)
+{
+    foreach(QString key, keys)
+        if (key != "???")
+            addRelation(key);
+}
+
+QList<Feature*> Feature::relations() const
+{
+    return d->relations.toList();
+}
+
+void Feature::addDependency(const QString &key)
+{
+    Feature *f = getInstance(key);
+    d->dependencies.insert(f);
+    f->d->supports.insert(this);
+}
+
+void Feature::setDependencies(const QStringList &keys)
+{
+    foreach(QString key, keys)
+        addDependency(key);
+}
+
+QList<Feature*> Feature::dependencies() const
+{
+    return d->dependencies.toList();
+}
+
+QList<Feature*> Feature::supports() const
+{
+    return d->supports.toList();
+}
+
+/*
+    Returns a html formatted detailed description of this Feature.
+*/
+QString Feature::getDocumentation() const
+{
+    return QString() + "<h2>" + d->title + "</h2>";
+
+}
+
+void Feature::setEnabled(bool on)
+{
+    if (on == d->enabled)
+        return;
+
+    d->enabled = on;
+    foreach (Feature *f, supports())
+	f->updateSelectable();
+    emit changed();
+}
+
+/*
+  Update whether this feature should be selectable.
+  A feature is selectable if all its dependencies are enabled.
+*/
+void Feature::updateSelectable()
+{
+    bool selectable = true;
+    foreach (Feature *f, dependencies())
+        if (!f->selectable() || !f->enabled())
+            selectable = false;
+    if (selectable != d->selectable) {
+        d->selectable = selectable;
+        foreach (Feature *f, supports())
+            f->updateSelectable();
+        emit changed();
+    }
+}
+
+QT_END_NAMESPACE