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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /forms/source/component/imgprod.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'forms/source/component/imgprod.cxx')
-rw-r--r--forms/source/component/imgprod.cxx491
1 files changed, 491 insertions, 0 deletions
diff --git a/forms/source/component/imgprod.cxx b/forms/source/component/imgprod.cxx
new file mode 100644
index 000000000..5446b2082
--- /dev/null
+++ b/forms/source/component/imgprod.cxx
@@ -0,0 +1,491 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "imgprod.hxx"
+
+#include <osl/diagnose.h>
+#include <tools/debug.hxx>
+#include <vcl/BitmapReadAccess.hxx>
+#include <vcl/cvtgrf.hxx>
+#include <vcl/svapp.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <com/sun/star/awt/ImageStatus.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+
+#include <svtools/imageresourceaccess.hxx>
+#include <comphelper/processfactory.hxx>
+
+namespace {
+
+class ImgProdLockBytes : public SvLockBytes
+{
+ css::uno::Reference< css::io::XInputStream > xStmRef;
+ css::uno::Sequence<sal_Int8> maSeq;
+
+public:
+
+ ImgProdLockBytes( SvStream* pStm, bool bOwner );
+ explicit ImgProdLockBytes( css::uno::Reference< css::io::XInputStream > const & rStreamRef );
+
+ virtual ErrCode ReadAt( sal_uInt64 nPos, void* pBuffer, std::size_t nCount, std::size_t * pRead ) const override;
+ virtual ErrCode WriteAt( sal_uInt64 nPos, const void* pBuffer, std::size_t nCount, std::size_t * pWritten ) override;
+ virtual ErrCode Flush() const override;
+ virtual ErrCode SetSize( sal_uInt64 nSize ) override;
+ virtual ErrCode Stat( SvLockBytesStat* ) const override;
+};
+
+}
+
+ImgProdLockBytes::ImgProdLockBytes( SvStream* pStm, bool bOwner ) :
+ SvLockBytes( pStm, bOwner )
+{
+}
+
+
+ImgProdLockBytes::ImgProdLockBytes( css::uno::Reference< css::io::XInputStream > const & rStmRef ) :
+ xStmRef( rStmRef )
+{
+ if( !xStmRef.is() )
+ return;
+
+ const sal_uInt32 nBytesToRead = 65535;
+ sal_uInt32 nRead;
+
+ do
+ {
+ css::uno::Sequence< sal_Int8 > aReadSeq;
+
+ nRead = xStmRef->readSomeBytes( aReadSeq, nBytesToRead );
+
+ if( nRead )
+ {
+ const sal_uInt32 nOldLength = maSeq.getLength();
+ maSeq.realloc( nOldLength + nRead );
+ memcpy( maSeq.getArray() + nOldLength, aReadSeq.getConstArray(), aReadSeq.getLength() );
+ }
+ }
+ while( nBytesToRead == nRead );
+}
+
+ErrCode ImgProdLockBytes::ReadAt(sal_uInt64 const nPos,
+ void* pBuffer, std::size_t nCount, std::size_t * pRead) const
+{
+ if( GetStream() )
+ {
+ const_cast<SvStream*>(GetStream())->ResetError();
+ const ErrCode nErr = SvLockBytes::ReadAt( nPos, pBuffer, nCount, pRead );
+ const_cast<SvStream*>(GetStream())->ResetError();
+ return nErr;
+ }
+ else
+ {
+ const std::size_t nSeqLen = maSeq.getLength();
+
+ if( nPos < nSeqLen )
+ {
+ if( ( nPos + nCount ) > nSeqLen )
+ nCount = nSeqLen - nPos;
+
+ memcpy( pBuffer, maSeq.getConstArray() + nPos, nCount );
+ *pRead = nCount;
+ }
+ else
+ *pRead = 0;
+
+ return ERRCODE_NONE;
+ }
+}
+
+
+ErrCode ImgProdLockBytes::WriteAt(sal_uInt64 const nPos,
+ const void* pBuffer, std::size_t nCount, std::size_t * pWritten)
+{
+ if( GetStream() )
+ return SvLockBytes::WriteAt( nPos, pBuffer, nCount, pWritten );
+ else
+ {
+ DBG_ASSERT( xStmRef.is(), "ImgProdLockBytes::WriteAt: xInputStream has no reference..." );
+ return ERRCODE_IO_CANTWRITE;
+ }
+}
+
+
+ErrCode ImgProdLockBytes::Flush() const
+{
+ return ERRCODE_NONE;
+}
+
+
+ErrCode ImgProdLockBytes::SetSize(sal_uInt64 const nSize)
+{
+ if( GetStream() )
+ return SvLockBytes::SetSize( nSize );
+ else
+ {
+ OSL_FAIL( "ImgProdLockBytes::SetSize not supported for xInputStream..." );
+ return ERRCODE_IO_CANTWRITE;
+ }
+}
+
+
+ErrCode ImgProdLockBytes::Stat( SvLockBytesStat* pStat ) const
+{
+ if( GetStream() )
+ return SvLockBytes::Stat( pStat );
+ else
+ {
+ DBG_ASSERT( xStmRef.is(), "ImgProdLockBytes::Stat: xInputStream has no reference..." );
+ pStat->nSize = maSeq.getLength();
+ return ERRCODE_NONE;
+ }
+}
+
+
+ImageProducer::ImageProducer()
+ : mnTransIndex(0)
+ , mbConsInit(false)
+{
+ mpGraphic.reset( new Graphic );
+}
+
+ImageProducer::~ImageProducer()
+{
+}
+
+
+// XInterface
+css::uno::Any ImageProducer::queryInterface( const css::uno::Type & rType )
+{
+ css::uno::Any aRet = ::cppu::queryInterface( rType,
+ static_cast< css::lang::XInitialization* >(this),
+ static_cast< css::awt::XImageProducer* >(this) );
+ return (aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ));
+}
+
+
+void ImageProducer::addConsumer( const css::uno::Reference< css::awt::XImageConsumer >& rxConsumer )
+{
+ DBG_ASSERT( rxConsumer.is(), "::AddConsumer(...): No consumer referenced!" );
+ if( rxConsumer.is() )
+ maConsList.push_back( rxConsumer );
+}
+
+
+void ImageProducer::removeConsumer( const css::uno::Reference< css::awt::XImageConsumer >& rxConsumer )
+{
+ ConsumerList_t::reverse_iterator riter = std::find(maConsList.rbegin(),maConsList.rend(),rxConsumer);
+
+ if (riter != maConsList.rend())
+ maConsList.erase(riter.base()-1);
+}
+
+
+void ImageProducer::SetImage( const OUString& rPath )
+{
+ maURL = rPath;
+ mpGraphic->Clear();
+ mbConsInit = false;
+ mpStm.reset();
+
+ if ( ::svt::GraphicAccess::isSupportedURL( maURL ) )
+ {
+ mpStm = ::svt::GraphicAccess::getImageStream( ::comphelper::getProcessComponentContext(), maURL );
+ }
+ else if( !maURL.isEmpty() )
+ {
+ std::unique_ptr<SvStream> pIStm = ::utl::UcbStreamHelper::CreateStream( maURL, StreamMode::STD_READ );
+ if (pIStm)
+ mpStm.reset( new SvStream( new ImgProdLockBytes( pIStm.release(), true ) ) );
+ }
+}
+
+
+void ImageProducer::SetImage( SvStream& rStm )
+{
+ maURL.clear();
+ mpGraphic->Clear();
+ mbConsInit = false;
+
+ mpStm.reset( new SvStream( new ImgProdLockBytes( &rStm, false ) ) );
+}
+
+
+void ImageProducer::setImage( css::uno::Reference< css::io::XInputStream > const & rInputStmRef )
+{
+ maURL.clear();
+ mpGraphic->Clear();
+ mbConsInit = false;
+ mpStm.reset();
+
+ if( rInputStmRef.is() )
+ mpStm.reset( new SvStream( new ImgProdLockBytes( rInputStmRef ) ) );
+}
+
+
+void ImageProducer::NewDataAvailable()
+{
+ if( ( GraphicType::NONE == mpGraphic->GetType() ) || mpGraphic->GetReaderContext() )
+ startProduction();
+}
+
+
+void ImageProducer::startProduction()
+{
+ if( maConsList.empty() && !maDoneHdl.IsSet() )
+ return;
+
+ bool bNotifyEmptyGraphics = false;
+
+ // valid stream or filled graphic? => update consumers
+ if( mpStm || ( mpGraphic->GetType() != GraphicType::NONE ) )
+ {
+ // if we already have a graphic, we don't have to import again;
+ // graphic is cleared if a new Stream is set
+ if( ( mpGraphic->GetType() == GraphicType::NONE ) || mpGraphic->GetReaderContext() )
+ {
+ if ( ImplImportGraphic( *mpGraphic ) )
+ maDoneHdl.Call( mpGraphic.get() );
+ }
+
+ if( mpGraphic->GetType() != GraphicType::NONE )
+ ImplUpdateData( *mpGraphic );
+ else
+ bNotifyEmptyGraphics = true;
+ }
+ else
+ bNotifyEmptyGraphics = true;
+
+ if ( !bNotifyEmptyGraphics )
+ return;
+
+ // reset image
+ // create temporary list to hold interfaces
+ ConsumerList_t aTmp = maConsList;
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ {
+ elem->init( 0, 0 );
+ elem->complete( css::awt::ImageStatus::IMAGESTATUS_STATICIMAGEDONE, this );
+ }
+
+ maDoneHdl.Call( nullptr );
+}
+
+
+bool ImageProducer::ImplImportGraphic( Graphic& rGraphic )
+{
+ if (!mpStm)
+ return false;
+
+ if( ERRCODE_IO_PENDING == mpStm->GetError() )
+ mpStm->ResetError();
+
+ mpStm->Seek( 0 );
+
+ bool bRet = GraphicConverter::Import( *mpStm, rGraphic ) == ERRCODE_NONE;
+
+ if( ERRCODE_IO_PENDING == mpStm->GetError() )
+ mpStm->ResetError();
+
+ return bRet;
+}
+
+
+void ImageProducer::ImplUpdateData( const Graphic& rGraphic )
+{
+ ImplInitConsumer( rGraphic );
+
+ if( mbConsInit && !maConsList.empty() )
+ {
+ // create temporary list to hold interfaces
+ ConsumerList_t aTmp = maConsList;
+
+ ImplUpdateConsumer( rGraphic );
+ mbConsInit = false;
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ elem->complete( css::awt::ImageStatus::IMAGESTATUS_STATICIMAGEDONE, this );
+ }
+}
+
+
+void ImageProducer::ImplInitConsumer( const Graphic& rGraphic )
+{
+ sal_uInt32 nRMask = 0;
+ sal_uInt32 nGMask = 0;
+ sal_uInt32 nBMask = 0;
+ sal_uInt32 nAMask = 0;
+ sal_uInt32 nWidth = 0;
+ sal_uInt32 nHeight = 0;
+ sal_uInt8 nBitCount = 0;
+ css::uno::Sequence< sal_Int32 > aRGBPal;
+ rGraphic.GetBitmapEx().GetColorModel(aRGBPal, nRMask, nGMask, nBMask, nAMask, mnTransIndex, nWidth, nHeight, nBitCount);
+
+ // create temporary list to hold interfaces
+ ConsumerList_t aTmp = maConsList;
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ {
+ elem->init( nWidth, nHeight );
+ elem->setColorModel( nBitCount,aRGBPal, nRMask, nGMask, nBMask, nAMask );
+ }
+
+ mbConsInit = true;
+}
+
+
+void ImageProducer::ImplUpdateConsumer( const Graphic& rGraphic )
+{
+ BitmapEx aBmpEx( rGraphic.GetBitmapEx() );
+ Bitmap aBmp( aBmpEx.GetBitmap() );
+ BitmapReadAccess* pBmpAcc = aBmp.AcquireReadAccess();
+
+ if( !pBmpAcc )
+ return;
+
+ Bitmap aMask( aBmpEx.GetAlpha() );
+ BitmapReadAccess* pMskAcc = !aMask.IsEmpty() ? aMask.AcquireReadAccess() : nullptr;
+ const tools::Long nWidth = pBmpAcc->Width();
+ const tools::Long nHeight = pBmpAcc->Height();
+ const tools::Long nStartX = 0;
+ const tools::Long nEndX = nWidth - 1;
+ const tools::Long nStartY = 0;
+ const tools::Long nEndY = nHeight - 1;
+ const tools::Long nPartWidth = nEndX - nStartX + 1;
+ const tools::Long nPartHeight = nEndY - nStartY + 1;
+
+ if( !pMskAcc )
+ {
+ aMask = Bitmap(aBmp.GetSizePixel(), vcl::PixelFormat::N1_BPP);
+ aMask.Erase( COL_BLACK );
+ pMskAcc = aMask.AcquireReadAccess();
+ }
+
+ // create temporary list to hold interfaces
+ ConsumerList_t aTmp = maConsList;
+
+ if( pBmpAcc->HasPalette() )
+ {
+ const BitmapColor aWhite( pMskAcc->GetBestMatchingColor( COL_WHITE ) );
+
+ if( mnTransIndex < 256 )
+ {
+ css::uno::Sequence<sal_Int8> aData( nPartWidth * nPartHeight );
+ sal_Int8* pTmp = aData.getArray();
+
+ for( tools::Long nY = nStartY; nY <= nEndY; nY++ )
+ {
+ Scanline pScanlineMask = pMskAcc->GetScanline( nY );
+ Scanline pScanline = pBmpAcc->GetScanline( nY );
+ for( tools::Long nX = nStartX; nX <= nEndX; nX++ )
+ {
+ if( pMskAcc->GetPixelFromData( pScanlineMask, nX ) == aWhite )
+ *pTmp++ = sal::static_int_cast< sal_Int8 >(
+ mnTransIndex );
+ else
+ *pTmp++ = pBmpAcc->GetPixelFromData( pScanline, nX ).GetIndex();
+ }
+ }
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ elem->setPixelsByBytes( nStartX, nStartY, nPartWidth, nPartHeight, aData, 0UL, nPartWidth );
+ }
+ else
+ {
+ css::uno::Sequence<sal_Int32> aData( nPartWidth * nPartHeight );
+ sal_Int32* pTmp = aData.getArray();
+
+ for( tools::Long nY = nStartY; nY <= nEndY; nY++ )
+ {
+ Scanline pScanlineMask = pMskAcc->GetScanline( nY );
+ Scanline pScanline = pBmpAcc->GetScanline( nY );
+ for( tools::Long nX = nStartX; nX <= nEndX; nX++ )
+ {
+ if( pMskAcc->GetPixelFromData( pScanlineMask, nX ) == aWhite )
+ *pTmp++ = mnTransIndex;
+ else
+ *pTmp++ = pBmpAcc->GetPixelFromData( pScanline, nX ).GetIndex();
+ }
+ }
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ elem->setPixelsByLongs( nStartX, nStartY, nPartWidth, nPartHeight, aData, 0UL, nPartWidth );
+ }
+ }
+ else
+ {
+ css::uno::Sequence<sal_Int32> aData( nPartWidth * nPartHeight );
+ const BitmapColor aWhite( pMskAcc->GetBestMatchingColor( COL_WHITE ) );
+ sal_Int32* pTmp = aData.getArray();
+
+ for( tools::Long nY = nStartY; nY <= nEndY; nY++ )
+ {
+ Scanline pScanlineMask = pMskAcc->GetScanline( nY );
+ Scanline pScanline = pBmpAcc->GetScanline( nY );
+ for( tools::Long nX = nStartX; nX <= nEndX; nX++, pTmp++ )
+ {
+ const BitmapColor aCol( pBmpAcc->GetPixelFromData( pScanline, nX ) );
+
+ *pTmp = static_cast<sal_Int32>(aCol.GetRed()) << 24;
+ *pTmp |= static_cast<sal_Int32>(aCol.GetGreen()) << 16;
+ *pTmp |= static_cast<sal_Int32>(aCol.GetBlue()) << 8;
+
+ if( pMskAcc->GetPixelFromData( pScanlineMask, nX ) != aWhite )
+ *pTmp |= 0x000000ffUL;
+ }
+ }
+
+ // iterate through interfaces
+ for (auto const& elem : aTmp)
+ elem->setPixelsByLongs( nStartX, nStartY, nPartWidth, nPartHeight, aData, 0UL, nPartWidth );
+ }
+
+ Bitmap::ReleaseAccess( pBmpAcc );
+ Bitmap::ReleaseAccess( pMskAcc );
+}
+
+
+void ImageProducer::initialize( const css::uno::Sequence< css::uno::Any >& aArguments )
+{
+ if ( aArguments.getLength() == 1 )
+ {
+ css::uno::Any aArg = aArguments.getConstArray()[0];
+ OUString aURL;
+ if ( aArg >>= aURL )
+ {
+ SetImage( aURL );
+ }
+ }
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_form_ImageProducer_get_implementation(css::uno::XComponentContext*,
+ css::uno::Sequence<css::uno::Any> const &)
+{
+ return cppu::acquire(new ImageProducer());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */