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Diffstat (limited to 'include/vcl/filter/PngImageReader.hxx')
-rw-r--r-- | include/vcl/filter/PngImageReader.hxx | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/vcl/filter/PngImageReader.hxx b/include/vcl/filter/PngImageReader.hxx new file mode 100644 index 000000000..bbb5b7c8d --- /dev/null +++ b/include/vcl/filter/PngImageReader.hxx @@ -0,0 +1,56 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#ifndef INCLUDED_VCL_FILTER_PNGIMAGEREADER_HXX +#define INCLUDED_VCL_FILTER_PNGIMAGEREADER_HXX + +#include <sal/config.h> + +#include <memory> + +#include <vcl/dllapi.h> + +#include <com/sun/star/uno/Reference.hxx> + +namespace com::sun::star::task +{ +class XStatusIndicator; +} + +class BitmapEx; +class SvStream; + +namespace vcl +{ +class VCL_DLLPUBLIC PngImageReader +{ + SvStream& mrStream; + css::uno::Reference<css::task::XStatusIndicator> mxStatusIndicator; + +public: + PngImageReader(SvStream& rStream); + + // Returns true if image was successfully read without errors. + // A usable bitmap may be returned even if there were errors (e.g. incomplete image). + bool read(BitmapEx& rBitmap); + // Returns a bitmap without indicating if there were errors. + BitmapEx read(); + + // Returns the contents of the msOG chunk (containing a Gif image), if it exists. + // Does not change position in the stream. + static std::unique_ptr<sal_uInt8[]> getMicrosoftGifChunk(SvStream& rStream, + sal_Int32* chunkSize = nullptr); +}; + +} // namespace vcl + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |