/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the tools applications of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "cppwriteicondata.h"+
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#include "driver.h"+
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#include "ui4.h"+
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#include "uic.h"+
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+
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#include <QtCore/QTextStream>+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace CPP {+
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+
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static QByteArray transformImageData(QString data)+
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{+
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    int baSize = data.length() / 2;+
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    uchar *ba = new uchar[baSize];+
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    for (int i = 0; i < baSize; ++i) {+
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        char h = data[2 * (i)].toLatin1();+
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        char l = data[2 * (i) + 1].toLatin1();+
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        uchar r = 0;+
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        if (h <= '9')+
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            r += h - '0';+
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        else+
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            r += h - 'a' + 10;+
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        r = r << 4;+
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        if (l <= '9')+
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            r += l - '0';+
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        else+
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            r += l - 'a' + 10;+
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        ba[i] = r;+
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    }+
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    QByteArray ret(reinterpret_cast<const char *>(ba), baSize);+
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    delete [] ba;+
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    return ret;+
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}+
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+
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static QByteArray unzipXPM(QString data, ulong& length)+
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{+
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#ifndef QT_NO_COMPRESS+
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    const int lengthOffset = 4;+
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    QByteArray ba(lengthOffset, ' ');+
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+
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    // qUncompress() expects the first 4 bytes to be the expected length of the+
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    // uncompressed data+
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    ba[0] = (length & 0xff000000) >> 24;+
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    ba[1] = (length & 0x00ff0000) >> 16;+
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    ba[2] = (length & 0x0000ff00) >> 8;+
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    ba[3] = (length & 0x000000ff);+
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    ba.append(transformImageData(data));+
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    QByteArray baunzip = qUncompress(ba);+
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    return baunzip;+
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#else+
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    Q_UNUSED(data);+
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    Q_UNUSED(length);+
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    return QByteArray();+
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#endif+
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}+
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+
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+
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WriteIconData::WriteIconData(Uic *uic)+
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    : driver(uic->driver()), output(uic->output()), option(uic->option())+
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{+
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}+
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+
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void WriteIconData::acceptUI(DomUI *node)+
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{+
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    TreeWalker::acceptUI(node);+
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}+
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+
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void WriteIconData::acceptImages(DomImages *images)+
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{+
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    TreeWalker::acceptImages(images);+
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}+
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+
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void WriteIconData::acceptImage(DomImage *image)+
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{+
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    writeImage(output, option.indent, image);+
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}+
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+
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void WriteIconData::writeImage(QTextStream &output, const QString &indent, DomImage *image)+
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{+
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    QString img = image->attributeName() + QLatin1String("_data");+
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    QString data = image->elementData()->text();+
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    QString fmt = image->elementData()->attributeFormat();+
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    int size = image->elementData()->attributeLength();+
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+
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    if (fmt == QLatin1String("XPM.GZ")) {+
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        ulong length = size;+
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        QByteArray baunzip = unzipXPM(data, length);+
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        length = baunzip.size();+
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        // shouldn't we test the initial 'length' against the+
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        // resulting 'length' to catch corrupt UIC files?+
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        int a = 0;+
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        int column = 0;+
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        bool inQuote = false;+
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        output << indent << "static const char* const " << img << "[] = { \n";+
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        while (baunzip[a] != '\"')+
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            a++;+
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        for (; a < (int) length; a++) {+
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            output << baunzip[a];+
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            if (baunzip[a] == '\n') {+
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                column = 0;+
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            } else if (baunzip[a] == '"') {+
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                inQuote = !inQuote;+
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            }+
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+
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            if (column++ >= 511 && inQuote) {+
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                output << "\"\n\""; // be nice with MSVC & Co.+
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                column = 1;+
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            }+
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        }+
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+
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        if (! baunzip.trimmed ().endsWith ("};"))+
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            output << "};";+
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+
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        output << "\n\n";+
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    } else {+
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        output << indent << "static const unsigned char " << img << "[] = { \n";+
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        output << indent;+
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        int a ;+
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        for (a = 0; a < (int) (data.length()/2)-1; a++) {+
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            output << "0x" << QString(data[2*a]) << QString(data[2*a+1]) << ',';+
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            if (a % 12 == 11)+
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                output << '\n' << indent;+
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            else+
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                output << ' ';+
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        }+
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        output << "0x" << QString(data[2*a]) << QString(data[2*a+1]) << '\n';+
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        output << "};\n\n";+
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    }+
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}+
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+
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void WriteIconData::writeImage(QIODevice &output, DomImage *image)+
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{+
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    QByteArray array = transformImageData(image->elementData()->text());+
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    output.write(array, array.size());+
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}+
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+
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} // namespace CPP+
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+
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QT_END_NAMESPACE+
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