diff options
| -rw-r--r-- | src/plugins/imageformats/ico/qicohandler.cpp | 24 | ||||
| -rw-r--r-- | src/plugins/imageformats/ico/qicohandler.h | 3 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/plugins/imageformats/ico/qicohandler.cpp b/src/plugins/imageformats/ico/qicohandler.cpp index b2351fa..4edb87a 100644 --- a/src/plugins/imageformats/ico/qicohandler.cpp +++ b/src/plugins/imageformats/ico/qicohandler.cpp @@ -53,6 +53,7 @@ #include <QtGui/QImage> #include <QtCore/QFile> #include <QtCore/QBuffer> +#include <qvariant.h> // These next two structs represent how the icon information is stored // in an ICO file. typedef struct @@ -772,6 +773,29 @@ QtIcoHandler::~QtIcoHandler() delete m_pICOReader; } +QVariant QtIcoHandler::option(ImageOption option) const +{ + if (option == Size) { + QIODevice *device = QImageIOHandler::device(); + qint64 oldPos = device->pos(); + ICONDIRENTRY iconEntry; + if (device->seek(oldPos + ICONDIR_SIZE + (m_currentIconIndex * ICONDIRENTRY_SIZE))) { + if (readIconDirEntry(device, &iconEntry)) { + device->seek(oldPos); + return QSize(iconEntry.bWidth, iconEntry.bHeight); + } + } + if (!device->isSequential()) + device->seek(oldPos); + } + return QVariant(); +} + +bool QtIcoHandler::supportsOption(ImageOption option) const +{ + return option == Size; +} + /*! * Verifies if some values (magic bytes) are set as expected in the header of the file. * If the magic bytes were found, it is assumed that the QtIcoHandler can read the file. diff --git a/src/plugins/imageformats/ico/qicohandler.h b/src/plugins/imageformats/ico/qicohandler.h index b9ef27e..394a5eb 100644 --- a/src/plugins/imageformats/ico/qicohandler.h +++ b/src/plugins/imageformats/ico/qicohandler.h @@ -62,6 +62,9 @@ public: static bool canRead(QIODevice *device); + bool supportsOption(ImageOption option) const; + QVariant option(ImageOption option) const; + private: int m_currentIconIndex; ICOReader *m_pICOReader; |