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/* -*- 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 "GraphicExportFilter.hxx"
#include <com/sun/star/drawing/GraphicExportFilter.hpp>
#include <com/sun/star/drawing/XShape.hpp>
#include <com/sun/star/drawing/XShapes.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <vcl/graphicfilter.hxx>
#include <svl/outstrm.hxx>
#include <svtools/DocumentToGraphicRenderer.hxx>
using namespace css;
GraphicExportFilter::GraphicExportFilter( const uno::Reference< uno::XComponentContext > & rxContext )
: mxContext(rxContext)
, mnTargetWidth(0)
, mnTargetHeight(0)
, mbSelectionOnly(false)
{}
GraphicExportFilter::~GraphicExportFilter()
{}
// XServiceInfo
sal_Bool GraphicExportFilter::supportsService(const OUString& sServiceName)
{
return cppu::supportsService(this, sServiceName);
}
OUString GraphicExportFilter::getImplementationName()
{
return "com.sun.star.comp.GraphicExportFilter";
}
css::uno::Sequence< OUString > GraphicExportFilter::getSupportedServiceNames()
{
return { "com.sun.star.document.ExportFilter" };
}
void GraphicExportFilter::gatherProperties( const uno::Sequence< beans::PropertyValue > & rProperties )
{
OUString aInternalFilterName;
for ( const beans::PropertyValue& rProperty : rProperties )
{
if ( rProperty.Name == "FilterName" )
{
rProperty.Value >>= aInternalFilterName;
const sal_Int32 nLen = aInternalFilterName.getLength();
aInternalFilterName = aInternalFilterName.replaceFirst("calc_", "");
if (aInternalFilterName.getLength() == nLen)
aInternalFilterName = aInternalFilterName.replaceFirst("writer_", "");
if (aInternalFilterName.getLength() == nLen)
aInternalFilterName = aInternalFilterName.replaceFirst("web_", "");
if (aInternalFilterName.getLength() == nLen)
aInternalFilterName = aInternalFilterName.replaceFirst("draw_", "");
if (aInternalFilterName.getLength() == nLen)
aInternalFilterName = aInternalFilterName.replaceFirst("impress_", "");
}
else if ( rProperty.Name == "FilterData" )
{
rProperty.Value >>= maFilterDataSequence;
}
else if ( rProperty.Name == "OutputStream" )
{
rProperty.Value >>= mxOutputStream;
}
else if ( rProperty.Name == "SelectionOnly" )
{
rProperty.Value >>= mbSelectionOnly;
}
}
for ( const beans::PropertyValue& rProp : std::as_const(maFilterDataSequence) )
{
if ( rProp.Name == "PixelWidth" )
{
rProp.Value >>= mnTargetWidth;
}
else if ( rProp.Name == "PixelHeight" )
{
rProp.Value >>= mnTargetHeight;
}
}
if ( aInternalFilterName.isEmpty() )
return;
GraphicFilter aGraphicFilter( true );
sal_uInt16 nFilterCount = aGraphicFilter.GetExportFormatCount();
sal_uInt16 nFormat;
for ( nFormat = 0; nFormat < nFilterCount; nFormat++ )
{
if ( aGraphicFilter.GetExportInternalFilterName( nFormat ) == aInternalFilterName )
break;
}
if ( nFormat < nFilterCount )
{
maFilterExtension = aGraphicFilter.GetExportFormatShortName( nFormat );
}
}
sal_Bool SAL_CALL GraphicExportFilter::filter( const uno::Sequence< beans::PropertyValue > & rDescriptor )
{
gatherProperties(rDescriptor);
if (mbSelectionOnly && mxDocument.is())
{
uno::Reference< frame::XModel > xModel( mxDocument, uno::UNO_QUERY);
if (xModel.is())
{
uno::Reference< frame::XController > xController( xModel->getCurrentController());
if (xController.is())
{
uno::Reference< drawing::XShapes > xShapes;
uno::Reference< drawing::XShape > xShape;
if (DocumentToGraphicRenderer::isShapeSelected( xShapes, xShape, xController))
return filterExportShape( rDescriptor, xShapes, xShape);
}
}
}
return filterRenderDocument();
}
bool GraphicExportFilter::filterRenderDocument() const
{
DocumentToGraphicRenderer aRenderer( mxDocument, mbSelectionOnly );
sal_Int32 nCurrentPage = aRenderer.getCurrentPage();
Size aDocumentSizePixel = aRenderer.getDocumentSizeInPixels(nCurrentPage);
Size aTargetSizePixel(mnTargetWidth, mnTargetHeight);
if (mnTargetWidth == 0 || mnTargetHeight == 0)
aTargetSizePixel = aDocumentSizePixel;
Graphic aGraphic = aRenderer.renderToGraphic(nCurrentPage, aDocumentSizePixel, aTargetSizePixel, COL_WHITE, /*bExtOutDevData=*/false);
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
sal_uInt16 nFilterFormat = rFilter.GetExportFormatNumberForShortName( maFilterExtension );
SvMemoryStream aMemStream;
const GraphicConversionParameters aParameters(aTargetSizePixel, true, true);
const ErrCode nResult = rFilter.ExportGraphic( aGraphic.GetBitmapEx(aParameters), OUString(), aMemStream,
nFilterFormat, &maFilterDataSequence );
if ( nResult == ERRCODE_NONE )
{
SvOutputStream aOutputStream( mxOutputStream );
aMemStream.Seek(0);
aOutputStream.WriteStream( aMemStream );
return true;
}
return false;
}
bool GraphicExportFilter::filterExportShape(
const css::uno::Sequence< css::beans::PropertyValue > & rDescriptor,
const css::uno::Reference< css::drawing::XShapes > & rxShapes,
const css::uno::Reference< css::drawing::XShape > & rxShape ) const
{
uno::Reference< lang::XComponent > xSourceDoc;
if (rxShapes.is())
xSourceDoc.set( rxShapes, uno::UNO_QUERY_THROW );
else if (rxShape.is())
xSourceDoc.set( rxShape, uno::UNO_QUERY_THROW );
if (!xSourceDoc.is())
return false;
uno::Reference< drawing::XGraphicExportFilter > xGraphicExporter =
drawing::GraphicExportFilter::create( mxContext );
if (!xGraphicExporter.is())
return false;
// Need to replace the internal filter name with the short name
// (extension).
uno::Sequence< beans::PropertyValue > aDescriptor( rDescriptor);
for (sal_Int32 i = 0; i < aDescriptor.getLength(); ++i)
{
if (aDescriptor[i].Name == "FilterName")
{
aDescriptor.getArray()[i].Value <<= maFilterExtension;
break;
}
}
xGraphicExporter->setSourceDocument( xSourceDoc );
return xGraphicExporter->filter( aDescriptor );
}
void SAL_CALL GraphicExportFilter::cancel( )
{
}
void SAL_CALL GraphicExportFilter::setSourceDocument( const uno::Reference< lang::XComponent > & xDocument )
{
mxDocument = xDocument;
}
void SAL_CALL GraphicExportFilter::initialize( const uno::Sequence< uno::Any > & )
{
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
filter_GraphicExportFilter_get_implementation(
css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
{
return cppu::acquire(new GraphicExportFilter(context));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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