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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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 §ion)
{
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
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