From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- forms/source/component/imgprod.cxx | 491 +++++++++++++++++++++++++++++++++++++ 1 file changed, 491 insertions(+) create mode 100644 forms/source/component/imgprod.cxx (limited to 'forms/source/component/imgprod.cxx') 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +namespace { + +class ImgProdLockBytes : public SvLockBytes +{ + css::uno::Reference< css::io::XInputStream > xStmRef; + css::uno::Sequence 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(GetStream())->ResetError(); + const ErrCode nErr = SvLockBytes::ReadAt( nPos, pBuffer, nCount, pRead ); + const_cast(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 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 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 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 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(aCol.GetRed()) << 24; + *pTmp |= static_cast(aCol.GetGreen()) << 16; + *pTmp |= static_cast(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 const &) +{ + return cppu::acquire(new ImageProducer()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3