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/****************************************************************************
**
** 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 QtGui 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 "qplatformfontdatabase_qpa.h"
#include <QtGui/private/qfontengine_p.h>
#include <QtGui/private/qfontengine_qpa_p.h>
#include <QtCore/QLibraryInfo>
#include <QtCore/QDir>
QT_BEGIN_NAMESPACE
extern void qt_registerFont(const QString &familyname, const QString &foundryname, int weight,
QFont::Style style, int stretch, bool antialiased,bool scalable, int pixelSize,
const QSupportedWritingSystems &writingSystems, void *hanlde);
void QPlatformFontDatabase::registerQPF2Font(const QByteArray &dataArray, void *handle)
{
if (dataArray.size() == 0)
return;
const uchar *data = reinterpret_cast<const uchar *>(dataArray.constData());
if (QFontEngineQPA::verifyHeader(data, dataArray.size())) {
QString fontName = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_FontName).toString();
int pixelSize = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_PixelSize).toInt();
QVariant weight = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_Weight);
QVariant style = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_Style);
QByteArray writingSystemBits = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_WritingSystems).toByteArray();
if (!fontName.isEmpty() && pixelSize) {
int fontWeight = 50;
if (weight.type() == QVariant::Int || weight.type() == QVariant::UInt)
fontWeight = weight.toInt();
QFont::Style fontStyle = static_cast<QFont::Style>(style.toInt());
QSupportedWritingSystems writingSystems;
for (int i = 0; i < writingSystemBits.count(); ++i) {
uchar currentByte = writingSystemBits.at(i);
for (int j = 0; j < 8; ++j) {
if (currentByte & 1)
writingSystems.setSupported(QFontDatabase::WritingSystem(i * 8 + j));
currentByte >>= 1;
}
}
registerFont(fontName,QString(),fontWeight,fontStyle,100,true,false,pixelSize,writingSystems,handle);
}
} else {
qDebug() << "header verification of QPF2 font failed. maybe it is corrupt?";
}
}
void QPlatformFontDatabase::registerFont(const QString &familyname, const QString &foundryname, int weight,
QFont::Style style, int stretch, bool antialiased, bool scalable, int pixelSize,
const QSupportedWritingSystems &writingSystems, void *usrPtr)
{
if (scalable)
pixelSize = 0;
qt_registerFont(familyname,foundryname,weight,style,stretch,antialiased,scalable,pixelSize,writingSystems,usrPtr);
}
class QWritingSystemsPrivate
{
public:
QWritingSystemsPrivate()
: ref(1)
, vector(QFontDatabase::WritingSystemsCount,false)
{
}
QWritingSystemsPrivate(const QWritingSystemsPrivate *other)
: ref(1)
, vector(other->vector)
{
}
QAtomicInt ref;
QVector<bool> vector;
};
QSupportedWritingSystems::QSupportedWritingSystems()
{
d = new QWritingSystemsPrivate;
}
QSupportedWritingSystems::QSupportedWritingSystems(const QSupportedWritingSystems &other)
{
d = other.d;
d->ref.ref();
}
QSupportedWritingSystems &QSupportedWritingSystems::operator=(const QSupportedWritingSystems &other)
{
if (d != other.d) {
other.d->ref.ref();
if (!d->ref.deref())
delete d;
d = other.d;
}
return *this;
}
QSupportedWritingSystems::~QSupportedWritingSystems()
{
if (!d->ref.deref())
delete d;
}
void QSupportedWritingSystems::detach()
{
if (d->ref != 1) {
QWritingSystemsPrivate *newd = new QWritingSystemsPrivate(d);
if (!d->ref.deref())
delete d;
d = newd;
}
}
void QSupportedWritingSystems::setSupported(QFontDatabase::WritingSystem writingSystem, bool support)
{
detach();
d->vector[writingSystem] = support;
}
bool QSupportedWritingSystems::supported(QFontDatabase::WritingSystem writingSystem) const
{
return d->vector.at(writingSystem);
}
void QPlatformFontDatabase::populateFontDatabase()
{
QString fontpath = fontDir();
if(!QFile::exists(fontpath)) {
qFatal("QFontDatabase: Cannot find font directory %s - is Qt installed correctly?",
qPrintable(fontpath));
}
QDir dir(fontpath);
dir.setNameFilters(QStringList() << QLatin1String("*.qpf2"));
dir.refresh();
for (int i = 0; i < int(dir.count()); ++i) {
const QByteArray fileName = QFile::encodeName(dir.absoluteFilePath(dir[i]));
QFile file(QString::fromLocal8Bit(fileName));
if (file.open(QFile::ReadOnly)) {
const QByteArray fileData = file.readAll();
QByteArray *fileDataPtr = new QByteArray(fileData);
registerQPF2Font(fileData, fileDataPtr);
}
}
}
QFontEngine *QPlatformFontDatabase::fontEngine(const QFontDef &fontDef, QUnicodeTables::Script script, void *handle)
{
Q_UNUSED(script);
Q_UNUSED(handle);
QByteArray *fileDataPtr = static_cast<QByteArray *>(handle);
QFontEngineQPA *engine = new QFontEngineQPA(fontDef,*fileDataPtr);
qDebug() << fontDef.pixelSize << fontDef.weight << fontDef.style << fontDef.stretch << fontDef.styleHint << fontDef.styleStrategy << fontDef.family << script;
return engine;
}
QStringList QPlatformFontDatabase::fallbacksForFamily(const QString family, const QFont::Style &style, const QUnicodeTables::Script &script) const
{
Q_UNUSED(family);
Q_UNUSED(style);
Q_UNUSED(script);
return QStringList();
}
/*!
Adds an application font. Returns a list of family names, or an empty list if the font could
not be added
*/
QStringList QPlatformFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName)
{
Q_UNUSED(fontData);
Q_UNUSED(fileName);
qWarning("This plugin does not support application fonts");
return QStringList();
}
void QPlatformFontDatabase::releaseHandle(void *handle)
{
QByteArray *fileDataPtr = static_cast<QByteArray *>(handle);
delete fileDataPtr;
}
QString QPlatformFontDatabase::fontDir() const
{
QString fontpath = QString::fromLocal8Bit(qgetenv("QT_QPA_FONTDIR"));
if (fontpath.isEmpty()) {
#ifndef QT_NO_SETTINGS
fontpath = QLibraryInfo::location(QLibraryInfo::LibrariesPath);
fontpath += QLatin1String("/fonts");
#endif
}
return fontpath;
}
QT_END_NAMESPACE
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