--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/util/qdeclarativefontloader.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,250 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module 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 "private/qdeclarativefontloader_p.h"
+
+#include <qdeclarativecontext.h>
+#include <qdeclarativeengine.h>
+
+#include <QStringList>
+#include <QUrl>
+#include <QDebug>
+#include <QNetworkRequest>
+#include <QNetworkReply>
+#include <QFile>
+#include <QFontDatabase>
+
+#include <private/qobject_p.h>
+#include <private/qdeclarativeengine_p.h>
+#include <qdeclarativeinfo.h>
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeFontLoaderPrivate : public QObjectPrivate
+{
+ Q_DECLARE_PUBLIC(QDeclarativeFontLoader)
+
+public:
+ QDeclarativeFontLoaderPrivate() : reply(0), status(QDeclarativeFontLoader::Null), redirectCount(0) {}
+
+ void addFontToDatabase(const QByteArray &);
+
+ QUrl url;
+ QString name;
+ QNetworkReply *reply;
+ QDeclarativeFontLoader::Status status;
+ int redirectCount;
+};
+
+
+
+/*!
+ \qmlclass FontLoader QDeclarativeFontLoader
+ \since 4.7
+ \brief This item allows using fonts by name or url.
+
+ Example:
+ \qml
+ FontLoader { id: fixedFont; name: "Courier" }
+ FontLoader { id: webFont; source: "http://www.mysite.com/myfont.ttf" }
+
+ Text { text: "Fixed-size font"; font.family: fixedFont.name }
+ Text { text: "Fancy font"; font.family: webFont.name }
+ \endqml
+*/
+QDeclarativeFontLoader::QDeclarativeFontLoader(QObject *parent)
+ : QObject(*(new QDeclarativeFontLoaderPrivate), parent)
+{
+}
+
+QDeclarativeFontLoader::~QDeclarativeFontLoader()
+{
+}
+
+/*!
+ \qmlproperty url FontLoader::source
+ The url of the font to load.
+*/
+QUrl QDeclarativeFontLoader::source() const
+{
+ Q_D(const QDeclarativeFontLoader);
+ return d->url;
+}
+
+void QDeclarativeFontLoader::setSource(const QUrl &url)
+{
+ Q_D(QDeclarativeFontLoader);
+ if (url == d->url)
+ return;
+ d->url = qmlContext(this)->resolvedUrl(url);
+
+ d->status = Loading;
+ emit statusChanged();
+#ifndef QT_NO_LOCALFILE_OPTIMIZED_QML
+ QString lf = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(d->url);
+ if (!lf.isEmpty()) {
+ int id = QFontDatabase::addApplicationFont(lf);
+ if (id != -1) {
+ d->name = QFontDatabase::applicationFontFamilies(id).at(0);
+ emit nameChanged();
+ d->status = QDeclarativeFontLoader::Ready;
+ } else {
+ d->status = QDeclarativeFontLoader::Error;
+ qmlInfo(this) << "Cannot load font: \"" << url.toString() << "\"";
+ }
+ emit statusChanged();
+ } else
+#endif
+ {
+ QNetworkRequest req(d->url);
+ req.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true);
+ d->reply = qmlEngine(this)->networkAccessManager()->get(req);
+ QObject::connect(d->reply, SIGNAL(finished()), this, SLOT(replyFinished()));
+ }
+}
+
+/*!
+ \qmlproperty string FontLoader::name
+
+ This property holds the name of the font family.
+ It is set automatically when a font is loaded using the \c url property.
+
+ Use this to set the \c font.family property of a \c Text item.
+
+ Example:
+ \qml
+ FontLoader { id: webFont; source: "http://www.mysite.com/myfont.ttf" }
+ Text { text: "Fancy font"; font.family: webFont.name }
+ \endqml
+*/
+QString QDeclarativeFontLoader::name() const
+{
+ Q_D(const QDeclarativeFontLoader);
+ return d->name;
+}
+
+void QDeclarativeFontLoader::setName(const QString &name)
+{
+ Q_D(QDeclarativeFontLoader);
+ if (d->name == name )
+ return;
+ d->name = name;
+ emit nameChanged();
+ d->status = Ready;
+ emit statusChanged();
+}
+
+/*!
+ \qmlproperty enumeration FontLoader::status
+
+ This property holds the status of font loading. It can be one of:
+ \list
+ \o FontLoader.Null - no font has been set
+ \o FontLoader.Ready - the font has been loaded
+ \o FontLoader.Loading - the font is currently being loaded
+ \o FontLoader.Error - an error occurred while loading the font
+ \endlist
+
+ Note that a change in the status property does not cause anything to happen
+ (although it reflects what has happened to the font loader internally). If you wish
+ to react to the change in status you need to do it yourself, for example in one
+ of the following ways:
+ \list
+ \o Create a state, so that a state change occurs, e.g. State{name: 'loaded'; when: loader.status = FontLoader.Ready;}
+ \o Do something inside the onStatusChanged signal handler, e.g. FontLoader{id: loader; onStatusChanged: if(loader.status == FontLoader.Ready) console.log('Loaded');}
+ \o Bind to the status variable somewhere, e.g. Text{text: if(loader.status!=FontLoader.Ready){'Not Loaded';}else{'Loaded';}}
+ \endlist
+*/
+QDeclarativeFontLoader::Status QDeclarativeFontLoader::status() const
+{
+ Q_D(const QDeclarativeFontLoader);
+ return d->status;
+}
+
+#define FONTLOADER_MAXIMUM_REDIRECT_RECURSION 16
+
+void QDeclarativeFontLoader::replyFinished()
+{
+ Q_D(QDeclarativeFontLoader);
+ if (d->reply) {
+ d->redirectCount++;
+ if (d->redirectCount < FONTLOADER_MAXIMUM_REDIRECT_RECURSION) {
+ QVariant redirect = d->reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
+ if (redirect.isValid()) {
+ QUrl url = d->reply->url().resolved(redirect.toUrl());
+ d->reply->deleteLater();
+ d->reply = 0;
+ setSource(url);
+ return;
+ }
+ }
+ d->redirectCount=0;
+
+ if (!d->reply->error()) {
+ QByteArray ba = d->reply->readAll();
+ d->addFontToDatabase(ba);
+ } else {
+ d->status = Error;
+ qmlInfo(this) << "Cannot load font: \"" << d->reply->url().toString() << "\"";
+ emit statusChanged();
+ }
+ d->reply->deleteLater();
+ d->reply = 0;
+ }
+}
+
+void QDeclarativeFontLoaderPrivate::addFontToDatabase(const QByteArray &ba)
+{
+ Q_Q(QDeclarativeFontLoader);
+
+ int id = QFontDatabase::addApplicationFontFromData(ba);
+ if (id != -1) {
+ name = QFontDatabase::applicationFontFamilies(id).at(0);
+ emit q->nameChanged();
+ status = QDeclarativeFontLoader::Ready;
+ } else {
+ status = QDeclarativeFontLoader::Error;
+ qmlInfo(q) << "Cannot load font: \"" << url.toString() << "\"";
+ }
+ emit q->statusChanged();
+}
+
+QT_END_NAMESPACE