src/tools/uic3/embed.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/uic3/embed.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,336 @@
+/****************************************************************************
+**
+** 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 "ui3reader.h"
+#include <QFile>
+#include <QImage>
+#include <QStringList>
+#include <QDateTime>
+#include <QFileInfo>
+#include <QVector>
+#include <stdio.h>
+#include <ctype.h>
+
+QT_BEGIN_NAMESPACE
+
+// on embedded, we do not compress image data. Rationale: by mapping
+// the ready-only data directly into memory we are both faster and
+// more memory efficient
+#if defined(Q_WS_QWS) && !defined(QT_NO_IMAGE_COLLECTION_COMPRESSION)
+#  define QT_NO_IMAGE_COLLECTION_COMPRESSION
+#elif defined (QT_NO_COMPRESS)
+#  define QT_NO_IMAGE_COLLECTION_COMPRESSION
+#endif
+
+struct EmbedImage
+{
+    ~EmbedImage() { delete[] colorTable; }
+
+    int width, height, depth;
+    int numColors;
+    QRgb* colorTable;
+    QString name;
+    QString cname;
+    bool alpha;
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+    ulong compressed;
+#endif
+};
+
+static QString convertToCIdentifier( const char *s )
+{
+    QByteArray r = s;
+    int len = r.length();
+    if ( len > 0 && !isalpha( (char)r[0] ) )
+        r[0] = '_';
+    for ( int i=1; i<len; i++ ) {
+        if ( !isalnum( (char)r[i] ) )
+            r[i] = '_';
+    }
+
+    return QString::fromAscii(r);
+}
+
+
+static ulong embedData( QTextStream& out, const uchar* input, int nbytes )
+{
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+    QByteArray bazip( qCompress( input, nbytes ) );
+    ulong len = bazip.size();
+#else
+    ulong len = nbytes;
+#endif
+    static const char hexdigits[] = "0123456789abcdef";
+    QString s;
+    for ( int i=0; i<(int)len; i++ ) {
+        if ( (i%14) == 0 ) {
+            s += QLatin1String("\n    ");
+            out << s.latin1();
+            s.truncate( 0 );
+        }
+        uint v = (uchar)
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+                 bazip
+#else
+                 input
+#endif
+                 [i];
+        s += QLatin1String("0x");
+        s += QLatin1Char(hexdigits[(v >> 4) & 15]);
+        s += QLatin1Char(hexdigits[v & 15]);
+        if ( i < (int)len-1 )
+            s += QLatin1Char(',');
+    }
+    if ( s.length() )
+        out << s.latin1();
+    return len;
+}
+
+static void embedData( QTextStream& out, const QRgb* input, int n )
+{
+    out << hex;
+    const QRgb *v = input;
+    for ( int i=0; i<n; i++ ) {
+        if ( (i%14) == 0  )
+            out << "\n    ";
+        out << "0x";
+        out << hex << *v++;
+        if ( i < n-1 )
+            out << ',';
+    }
+    out << dec; // back to decimal mode
+}
+
+void Ui3Reader::embed(const char *project, const QStringList &images)
+{
+
+    QString cProject = convertToCIdentifier( project );
+
+    QStringList::ConstIterator it;
+    out << "/****************************************************************************\n";
+    out << "** Image collection for project '" << project << "'.\n";
+    out << "**\n";
+    out << "** Generated from reading image files: \n";
+    for ( it = images.begin(); it != images.end(); ++it )
+        out << "**      " << *it << "\n";
+    out << "**\n";
+    out << "** Created: " << QDateTime::currentDateTime().toString() << "\n";
+    out << "**      by: The User Interface Compiler for Qt version " << QT_VERSION_STR << "\n";
+    out << "**\n";
+    out << "** WARNING! All changes made in this file will be lost!\n";
+    out << "****************************************************************************/\n";
+    out << "\n";
+
+    out << "#include <qimage.h>\n";
+    out << "#include <qmime.h>\n";
+    out << "#include <q3mimefactory.h>\n";
+    out << "#include <q3dragobject.h>\n";
+    out << "\n";
+
+    QList<EmbedImage*> list_image;
+    int image_count = 0;
+    for ( it = images.begin(); it != images.end(); ++it ) {
+        QImage img;
+        if ( !img.load( *it ) ) {
+            fprintf( stderr, "uic: cannot load image file %s\n", (*it).latin1() );
+            continue;
+        }
+        EmbedImage *e = new EmbedImage;
+        e->width = img.width();
+        e->height = img.height();
+        e->depth = img.depth();
+        e->numColors = img.numColors();
+        e->colorTable = new QRgb[e->numColors];
+        e->alpha = img.hasAlphaBuffer();
+        QVector<QRgb> ct = img.colorTable();
+        memcpy(e->colorTable, ct.constData(), e->numColors*sizeof(QRgb));
+        QFileInfo fi( *it );
+        e->name = fi.fileName();
+        e->cname = QString::fromLatin1("image_%1").arg( image_count++);
+        list_image.append( e );
+        out << "// " << *it << "\n";
+        QString s;
+        if ( e->depth == 1 )
+            img = img.convertBitOrder(QImage::BigEndian);
+        out << s.sprintf( "static const unsigned char %s_data[] = {",
+                          e->cname.latin1() );
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+        e->compressed =
+#endif
+            embedData( out, img.bits(), img.numBytes() );
+        out << "\n};\n\n";
+        if ( e->numColors ) {
+            out << s.sprintf( "static const QRgb %s_ctable[] = {",
+                              e->cname.latin1() );
+            embedData( out, e->colorTable, e->numColors );
+            out << "\n};\n\n";
+        }
+    }
+
+    if ( !list_image.isEmpty() ) {
+        out << "static const struct EmbedImage {\n"
+            "    int width, height, depth;\n"
+            "    const unsigned char *data;\n"
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+            "    ulong compressed;\n"
+#endif
+            "    int numColors;\n"
+            "    const QRgb *colorTable;\n"
+            "    bool alpha;\n"
+            "    const char *name;\n"
+            "} embed_image_vec[] = {\n";
+        EmbedImage *e = 0;
+        int i;
+        for (i = 0; i < list_image.count(); ++i) {
+            e = list_image.at(i);
+            out << "    { "
+                << e->width << ", "
+                << e->height << ", "
+                << e->depth << ", "
+                << "(const unsigned char*)" << e->cname << "_data, "
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+                << e->compressed << ", "
+#endif
+                << e->numColors << ", ";
+            if ( e->numColors )
+                out << e->cname << "_ctable, ";
+            else
+                out << "0, ";
+            if ( e->alpha )
+                out << "true, ";
+            else
+                out << "false, ";
+            out << '\"' << e->name << "\" },\n";
+            delete e;
+        }
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+        out << "    { 0, 0, 0, 0, 0, 0, 0, 0, 0 }\n};\n";
+#else
+        out << "    { 0, 0, 0, 0, 0, 0, 0, 0 }\n};\n";
+#endif
+
+        out << "\n"
+            "static QImage uic_findImage( const QString& name )\n"
+            "{\n"
+            "    for ( int i=0; embed_image_vec[i].data; i++ ) {\n"
+            "        if ( QString::fromUtf8(embed_image_vec[i].name) == name ) {\n"
+#ifndef QT_NO_IMAGE_COLLECTION_COMPRESSION
+            "            QByteArray baunzip;\n"
+            "            baunzip = qUncompress( embed_image_vec[i].data, \n"
+            "                embed_image_vec[i].compressed );\n"
+            "            QImage img((uchar*)baunzip.data(),\n"
+            "                        embed_image_vec[i].width,\n"
+            "                        embed_image_vec[i].height,\n"
+            "                        embed_image_vec[i].depth,\n"
+            "                        (QRgb*)embed_image_vec[i].colorTable,\n"
+            "                        embed_image_vec[i].numColors,\n"
+            "                        QImage::BigEndian\n"
+            "                );\n"
+            "            img = img.copy();\n"
+#else
+            "            QImage img((uchar*)embed_image_vec[i].data,\n"
+            "                        embed_image_vec[i].width,\n"
+            "                        embed_image_vec[i].height,\n"
+            "                        embed_image_vec[i].depth,\n"
+            "                        (QRgb*)embed_image_vec[i].colorTable,\n"
+            "                        embed_image_vec[i].numColors,\n"
+            "                        QImage::BigEndian\n"
+            "                );\n"
+#endif
+            "            if ( embed_image_vec[i].alpha )\n"
+            "                img.setAlphaBuffer(true);\n"
+            "            return img;\n"
+            "        }\n"
+            "    }\n"
+            "    return QImage();\n"
+            "}\n\n";
+
+        out << "class MimeSourceFactory_" << cProject << " : public Q3MimeSourceFactory\n";
+        out << "{\n";
+        out << "public:\n";
+        out << "    MimeSourceFactory_" << cProject << "() {}\n";
+        out << "    ~MimeSourceFactory_" << cProject << "() {}\n";
+        out << "    const QMimeSource* data( const QString& abs_name ) const {\n";
+        out << "\tconst QMimeSource* d = Q3MimeSourceFactory::data( abs_name );\n";
+        out << "\tif ( d || abs_name.isNull() ) return d;\n";
+        out << "\tQImage img = uic_findImage( abs_name );\n";
+        out << "\tif ( !img.isNull() )\n";
+        out << "\t    ((Q3MimeSourceFactory*)this)->setImage( abs_name, img );\n";
+        out << "\treturn Q3MimeSourceFactory::data( abs_name );\n";
+        out << "    };\n";
+        out << "};\n\n";
+
+        out << "static Q3MimeSourceFactory* factory = 0;\n";
+        out << "\n";
+
+        out << "void qInitImages_" << cProject << "()\n";
+        out << "{\n";
+        out << "    if ( !factory ) {\n";
+        out << "\tfactory = new MimeSourceFactory_" << cProject << ";\n";
+        out << "\tQ3MimeSourceFactory::defaultFactory()->addFactory( factory );\n";
+        out << "    }\n";
+        out << "}\n\n";
+
+        out << "void qCleanupImages_" << cProject << "()\n";
+        out << "{\n";
+        out << "    if ( factory ) {\n";
+        out << "\tQ3MimeSourceFactory::defaultFactory()->removeFactory( factory );\n";
+        out << "\tdelete factory;\n";
+        out << "\tfactory = 0;\n";
+        out << "    }\n";
+        out << "}\n\n";
+
+        out << "class StaticInitImages_" << cProject << "\n";
+        out << "{\n";
+        out << "public:\n";
+        out << "    StaticInitImages_" << cProject << "() { qInitImages_" << cProject << "(); }\n";
+        out << "#if defined(Q_OS_SCO) || defined(Q_OS_UNIXWARE)\n";
+        out << "    ~StaticInitImages_" << cProject << "() { }\n";
+        out << "#else\n";
+        out << "    ~StaticInitImages_" << cProject << "() { qCleanupImages_" << cProject << "(); }\n";
+        out << "#endif\n";
+        out << "};\n\n";
+
+        out << "static StaticInitImages_" << cProject << " staticImages;\n";
+    }
+}
+
+QT_END_NAMESPACE