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authorJan-Marek Glogowski <glogow@fbihome.de>2017-10-26 16:05:54 +0200
committerJan-Marek Glogowski <glogow@fbihome.de>2017-11-06 15:49:20 +0100
commit3a88795c1211c62277dc646e61c2ba8306febe37 (patch)
treeba44aef0c3dd0f8e1653759bd5cb86d1adae212a /tools
parenta4b7c54ea83e354f3dae3165bd71989a796ed6bc (diff)
tdf#108748 generate PDF preview on SwapIn
When including a PDF as an image, it's represented internally as a Bitmap with additional PDF data. On SwapIn, LibreOffice just imported the PDF data missing the PDF preview. The Graphic also gad the wrong image type, which results in a busy loop on master, with a strange / unhelpful STR_COMCORE_READERROR generated by SwNoTextFrame::PaintPicture. This is a workaround to generate the Bitmap on SwapIn, which will really slow down LibreOffice when importing many PDFs. I guess the job of generating the PDF previews should probably be deferred to a thread or a low priority Scheduler task, just like the general image loading is handled. Change-Id: I8084e4533995ecddc5b03ef19cb0c6a2dbf60ebd Reviewed-on: https://gerrit.libreoffice.org/43906 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>
Diffstat (limited to 'tools')
-rw-r--r--tools/source/stream/stream.cxx21
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/source/stream/stream.cxx b/tools/source/stream/stream.cxx
index 4f95afd2c1e8..4c363dc67484 100644
--- a/tools/source/stream/stream.cxx
+++ b/tools/source/stream/stream.cxx
@@ -1179,6 +1179,27 @@ SvStream& SvStream::WriteStream( SvStream& rStream )
return *this;
}
+sal_uInt64 SvStream::WriteStream( SvStream& rStream, sal_uInt64 nSize )
+{
+ const sal_uInt32 cBufLen = 0x8000;
+ std::unique_ptr<char[]> pBuf( new char[ cBufLen ] );
+ sal_uInt32 nCurBufLen = cBufLen;
+ sal_uInt32 nCount;
+ sal_uInt64 nWriteSize = nSize;
+
+ do {
+ if ( nSize >= nCurBufLen )
+ nWriteSize -= nCurBufLen;
+ else
+ nCurBufLen = nWriteSize;
+ nCount = rStream.ReadBytes( pBuf.get(), nCurBufLen );
+ WriteBytes( pBuf.get(), nCount );
+ }
+ while( nWriteSize && nCount == nCurBufLen );
+
+ return nSize - nWriteSize;
+}
+
OUString SvStream::ReadUniOrByteString( rtl_TextEncoding eSrcCharSet )
{
// read UTF-16 string directly from stream ?