From 06e4b1cff4c469d2fc3afbfe7a6b1954fedc90ff Mon Sep 17 00:00:00 2001 From: Allan Sandfeld Jensen Date: Mon, 26 Nov 2012 11:57:47 +0100 Subject: QImage plugins should report supported mime types Introduces the methods QImageReader::supportedMimeTypes and QImageWriter::supportedMimeTypes which corresponds to the similar supportedImageFormats methods, except they return lists of MIME types. Task-number: QTBUG-28177 Change-Id: Ibb0e264a12eaf972a8bfd6bd891dcd9f89efd085 Reviewed-by: Lars Knoll --- src/gui/image/qimagereader.cpp | 75 ++++++++++++++++++++++++++----------- src/gui/image/qimagereader.h | 1 + src/gui/image/qimagewriter.cpp | 85 +++++++++++++++++++++++++++++++++++------- src/gui/image/qimagewriter.h | 1 + 4 files changed, 127 insertions(+), 35 deletions(-) (limited to 'src/gui/image') diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp index 7e6d937c9f..cf03714d3f 100644 --- a/src/gui/image/qimagereader.cpp +++ b/src/gui/image/qimagereader.cpp @@ -186,31 +186,32 @@ struct _qt_BuiltInFormatStruct { _qt_BuiltInFormatType type; const char *extension; + const char *mimeType; }; static const _qt_BuiltInFormatStruct _qt_BuiltInFormats[] = { #ifndef QT_NO_IMAGEFORMAT_PNG - {_qt_PngFormat, "png"}, + {_qt_PngFormat, "png", "image/png"}, #endif #ifndef QT_NO_IMAGEFORMAT_JPEG - {_qt_JpgFormat, "jpg"}, + {_qt_JpgFormat, "jpg", "image/jpeg"}, #endif #ifdef QT_BUILTIN_GIF_READER - {_qt_GifFormat, "gif"}, + {_qt_GifFormat, "gif", "image/gif"}, #endif - {_qt_BmpFormat, "bmp"}, + {_qt_BmpFormat, "bmp", "image/bmp"}, #ifndef QT_NO_IMAGEFORMAT_PPM - {_qt_PpmFormat, "ppm"}, - {_qt_PgmFormat, "pgm"}, - {_qt_PbmFormat, "pbm"}, + {_qt_PpmFormat, "ppm", "image/x-portable-pixmap"}, + {_qt_PgmFormat, "pgm", "image/x-portable-graymap"}, + {_qt_PbmFormat, "pbm", "image/x-portable-bitmap"}, #endif #ifndef QT_NO_IMAGEFORMAT_XBM - {_qt_XbmFormat, "xbm"}, + {_qt_XbmFormat, "xbm", "image/x-xbitmap"}, #endif #ifndef QT_NO_IMAGEFORMAT_XPM - {_qt_XpmFormat, "xpm"}, + {_qt_XpmFormat, "xpm", "image/x-xpixmap"}, #endif - {_qt_NoFormat, ""} + {_qt_NoFormat, "", ""} }; static QImageIOHandler *createReadHandlerHelper(QIODevice *device, @@ -1434,6 +1435,10 @@ QByteArray QImageReader::imageFormat(QIODevice *device) void supportedImageHandlerFormats(QFactoryLoader *loader, QImageIOPlugin::Capability cap, QSet *result); + +void supportedImageHandlerMimeTypes(QFactoryLoader *loader, + QImageIOPlugin::Capability cap, + QSet *result); #endif /*! @@ -1442,18 +1447,17 @@ void supportedImageHandlerFormats(QFactoryLoader *loader, By default, Qt can read the following formats: \table - \header \li Format \li Description - \row \li BMP \li Windows Bitmap - \row \li GIF \li Graphic Interchange Format (optional) - \row \li JPG \li Joint Photographic Experts Group - \row \li JPEG \li Joint Photographic Experts Group - \row \li PNG \li Portable Network Graphics - \row \li PBM \li Portable Bitmap - \row \li PGM \li Portable Graymap - \row \li PPM \li Portable Pixmap - \row \li XBM \li X11 Bitmap - \row \li XPM \li X11 Pixmap - \row \li SVG \li Scalable Vector Graphics + \header \li Format \li MIME type \li Description + \row \li BMP \li image/bmp \li Windows Bitmap + \row \li GIF \li image/gif \li Graphic Interchange Format (optional) + \row \li JPG \li image/jpeg \li Joint Photographic Experts Group + \row \li PNG \li image/png \li Portable Network Graphics + \row \li PBM \li image/x-portable-bitmap \li Portable Bitmap + \row \li PGM \li image/x-portable-graymap \li Portable Graymap + \row \li PPM \li image/x-portable-pixmap \li Portable Pixmap + \row \li XBM \li image/x-xbitmap \li X11 Bitmap + \row \li XPM \li image/x-xpixmap \li X11 Pixmap + \row \li SVG \li image/svg+xml \li Scalable Vector Graphics \endtable Reading and writing SVG files is supported through Qt's @@ -1484,4 +1488,31 @@ QList QImageReader::supportedImageFormats() return sortedFormats; } +/*! + Returns the list of MIME types supported by QImageReader. + + Note that the QApplication instance must be created before this function is + called. + + \sa supportedImageFormats(), QImageWriter::supportedMimeTypes() +*/ + +QList QImageReader::supportedMimeTypes() +{ + QSet mimeTypes; + for (int i = 0; i < _qt_NumFormats; ++i) + mimeTypes << _qt_BuiltInFormats[i].mimeType; + +#ifndef QT_NO_LIBRARY + supportedImageHandlerMimeTypes(loader(), QImageIOPlugin::CanRead, &mimeTypes); +#endif // QT_NO_LIBRARY + + QList sortedMimeTypes; + for (QSet::ConstIterator it = mimeTypes.constBegin(); it != mimeTypes.constEnd(); ++it) + sortedMimeTypes << *it; + + qSort(sortedMimeTypes); + return sortedMimeTypes; +} + QT_END_NAMESPACE diff --git a/src/gui/image/qimagereader.h b/src/gui/image/qimagereader.h index 932b931254..498a9c4307 100644 --- a/src/gui/image/qimagereader.h +++ b/src/gui/image/qimagereader.h @@ -133,6 +133,7 @@ public: static QByteArray imageFormat(const QString &fileName); static QByteArray imageFormat(QIODevice *device); static QList supportedImageFormats(); + static QList supportedMimeTypes(); private: Q_DISABLE_COPY(QImageReader) diff --git a/src/gui/image/qimagewriter.cpp b/src/gui/image/qimagewriter.cpp index 6085a0e465..fbf8c14fec 100644 --- a/src/gui/image/qimagewriter.cpp +++ b/src/gui/image/qimagewriter.cpp @@ -100,6 +100,7 @@ #include #include #include +#include #include #include @@ -677,6 +678,26 @@ void supportedImageHandlerFormats(QFactoryLoader *loader, result->insert(key); } } + +void supportedImageHandlerMimeTypes(QFactoryLoader *loader, + QImageIOPlugin::Capability cap, + QSet *result) +{ + QList metaDataList = loader->metaData(); + + const int pluginCount = metaDataList.size(); + for (int i = 0; i < pluginCount; ++i) { + const QJsonObject metaData = metaDataList.at(i).value(QStringLiteral("MetaData")).toObject(); + const QJsonArray keys = metaData.value(QStringLiteral("Keys")).toArray(); + const QJsonArray mimeTypes = metaData.value(QStringLiteral("MimeTypes")).toArray(); + QImageIOPlugin *plugin = qobject_cast(loader->instance(i)); + const int keyCount = keys.size(); + for (int k = 0; k < keyCount; ++k) { + if (plugin && (plugin->capabilities(0, keys.at(k).toString().toLatin1()) & cap) != 0) + result->insert(mimeTypes.at(k).toString().toLatin1()); + } + } +} #endif // QT_NO_IMAGEFORMATPLUGIN /*! @@ -685,16 +706,15 @@ void supportedImageHandlerFormats(QFactoryLoader *loader, By default, Qt can write the following formats: \table - \header \li Format \li Description - \row \li BMP \li Windows Bitmap - \row \li JPG \li Joint Photographic Experts Group - \row \li JPEG \li Joint Photographic Experts Group - \row \li PNG \li Portable Network Graphics - \row \li PBM \li Portable Bitmap - \row \li PGM \li Portable Graymap - \row \li PPM \li Portable Pixmap - \row \li XBM \li X11 Bitmap - \row \li XPM \li X11 Pixmap + \header \li Format \li MIME type \li Description + \row \li BMP \li image/bmp \li Windows Bitmap + \row \li JPG \li image/jpeg \li Joint Photographic Experts Group + \row \li PNG \li image/png \li Portable Network Graphics + \row \li PBM \li image/x-portable-bitmap \li Portable Bitmap + \row \li PGM \li image/x-portable-graymap \li Portable Graymap + \row \li PPM \li image/x-portable-pixmap \li Portable Pixmap + \row \li XBM \li image/x-xbitmap \li X11 Bitmap + \row \li XPM \li image/x-xpixmap \li X11 Pixmap \endtable Reading and writing SVG files is supported through Qt's @@ -725,9 +745,6 @@ QList QImageWriter::supportedImageFormats() #ifndef QT_NO_IMAGEFORMAT_JPEG formats << "jpg" << "jpeg"; #endif -#ifdef QT_BUILTIN_GIF_READER - formats << "gif"; -#endif #ifndef QT_NO_IMAGEFORMATPLUGIN supportedImageHandlerFormats(loader(), QImageIOPlugin::CanWrite, &formats); @@ -741,4 +758,46 @@ QList QImageWriter::supportedImageFormats() return sortedFormats; } +/*! + Returns the list of MIME types supported by QImageWriter. + + Note that the QApplication instance must be created before this function is + called. + + \sa supportedImageFormats(), QImageReader::supportedMimeTypes() +*/ +QList QImageWriter::supportedMimeTypes() +{ + QSet mimeTypes; + mimeTypes << "image/bmp"; +#ifndef QT_NO_IMAGEFORMAT_PPM + mimeTypes << "image/x-portable-bitmap"; + mimeTypes << "image/x-portable-graymap"; + mimeTypes << "image/x-portable-pixmap"; +#endif +#ifndef QT_NO_IMAGEFORMAT_XBM + mimeTypes << "image/x-xbitmap"; +#endif +#ifndef QT_NO_IMAGEFORMAT_XPM + mimeTypes << "image/x-xpixmap"; +#endif +#ifndef QT_NO_IMAGEFORMAT_PNG + mimeTypes << "image/png"; +#endif +#ifndef QT_NO_IMAGEFORMAT_JPEG + mimeTypes << "image/jpeg"; +#endif + +#ifndef QT_NO_LIBRARY + supportedImageHandlerMimeTypes(loader(), QImageIOPlugin::CanWrite, &mimeTypes); +#endif // QT_NO_LIBRARY + + QList sortedMimeTypes; + for (QSet::ConstIterator it = mimeTypes.constBegin(); it != mimeTypes.constEnd(); ++it) + sortedMimeTypes << *it; + + qSort(sortedMimeTypes); + return sortedMimeTypes; +} + QT_END_NAMESPACE diff --git a/src/gui/image/qimagewriter.h b/src/gui/image/qimagewriter.h index 0e19d94f83..b01fd4b9a0 100644 --- a/src/gui/image/qimagewriter.h +++ b/src/gui/image/qimagewriter.h @@ -102,6 +102,7 @@ public: bool supportsOption(QImageIOHandler::ImageOption option) const; static QList supportedImageFormats(); + static QList supportedMimeTypes(); private: Q_DISABLE_COPY(QImageWriter) -- cgit v1.2.3