workspace/kcontrol/kfontinst/thumbnail/FontThumbnail.cpp

   1 /*
   2  * KFontInst - KDE Font Installer
   3  *
   4  * Copyright 2003-2007 Craig Drummond <craig@kde.org>
   5  *
   6  * ----
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; see the file COPYING.  If not, write to
  20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21  * Boston, MA 02110-1301, USA.
  22  */
  23
  24 #include "FontThumbnail.h"
  25 #include "KfiConstants.h"
  26 #include "FcEngine.h"
  27 #include <QtGui/QImage>
  28 #include <QtGui/QPixmap>
  29 #include <QtGui/QApplication>
  30 #include <QtGui/QPalette>
  31 #include <QtCore/QFile>
  32 #include <KDE/KGlobalSettings>
  33 #include <KDE/KLocale>
  34 #include <KDE/KUrl>
  35 #include <KDE/KZip>
  36 #include <KDE/KTempDir>
  37 #include <KDE/KMimeType>
  38 #include <KDE/KStandardDirs>
  39 #include <KDE/KDebug>
  40
  41 #define KFI_DBUG kDebug(7115)
  42
  43 extern "C"
  44 {
  45     KDE_EXPORT ThumbCreator *new_creator()
  46     {
  47         return new KFI::CFontThumbnail;
  48     }
  49 }
  50
  51 namespace KFI
  52 {
  53
  54 CFontThumbnail::CFontThumbnail()
  55 {
  56     KGlobal::locale()->insertCatalog(KFI_CATALOGUE);
  57 }
  58
  59 bool CFontThumbnail::create(const QString &path, int width, int height, QImage &img)
  60 {
  61     QPixmap  pix;
  62     QString  realPath(path);
  63     KTempDir *tempDir = 0;
  64
  65     CFcEngine::setTextCol(QApplication::palette().color(QPalette::Text));
  66
  67     KFI_DBUG << "Create font thumbnail for:" << path << endl;
  68
  69     // Is this a fonts/package file? If so, extract 1 scalable font...
  70     if(Misc::isPackage(path) || "application/zip"==KMimeType::findByFileContent(path)->name())
  71     {
  72         KZip zip(path);
  73
  74         if(zip.open(QIODevice::ReadOnly))
  75         {
  76             const KArchiveDirectory *zipDir=zip.directory();
  77
  78             if(zipDir)
  79             {
  80                 QStringList fonts(zipDir->entries());
  81
  82                 if(fonts.count())
  83                 {
  84                     QStringList::ConstIterator it(fonts.begin()),
  85                                                end(fonts.end());
  86
  87                     for(; it!=end; ++it)
  88                     {
  89                         const KArchiveEntry *entry=zipDir->entry(*it);
  90
  91                         if(entry && entry->isFile())
  92                         {
  93                             delete tempDir;
  94                             tempDir=new KTempDir(KStandardDirs::locateLocal("tmp", KFI_TMP_DIR_PREFIX));
  95                             tempDir->setAutoRemove(true);
  96
  97                             ((KArchiveFile *)entry)->copyTo(tempDir->name());
  98
  99                             QString mime(KMimeType::findByPath(tempDir->name()+entry->name())->name());
 100
 101                             if(mime=="application/x-font-ttf" || mime=="application/x-font-otf" ||
 102                                mime=="application/x-font-type1")
 103                             {
 104                                 realPath=tempDir->name()+entry->name();
 105                                 break;
 106                             }
 107                             else
 108                                 ::unlink(QFile::encodeName(tempDir->name()+entry->name()).data());
 109                         }
 110                     }
 111                 }
 112             }
 113         }
 114     }
 115
 116     if(itsEngine.draw(KUrl(realPath), width, height, pix, 0, true))
 117     {
 118         img=pix.toImage().convertToFormat(QImage::Format_ARGB32);
 119         delete tempDir;
 120         return true;
 121     }
 122
 123     delete tempDir;
 124     return false;
 125 }
 126
 127 ThumbCreator::Flags CFontThumbnail::flags() const
 128 {
 129     return None;
 130 }
 131
 132 }