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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "ImagePreparer.hxx"
21 :
22 : #include <comphelper/processfactory.hxx>
23 : #include <osl/file.hxx>
24 : #include <rtl/ustrbuf.hxx>
25 : #include <sax/tools/converter.hxx>
26 : #include <rtl/strbuf.hxx>
27 : #include <unotools/streamwrap.hxx>
28 :
29 : #include <svl/itemset.hxx>
30 : #include <sfx2/docfile.hxx>
31 :
32 : #include <com/sun/star/beans/PropertyValue.hpp>
33 : #include <com/sun/star/container/XNameAccess.hpp>
34 : #include <com/sun/star/document/XFilter.hpp>
35 : #include <com/sun/star/document/XImporter.hpp>
36 : #include <com/sun/star/document/XExporter.hpp>
37 : #include <com/sun/star/drawing/GraphicExportFilter.hpp>
38 : #include <com/sun/star/lang/XServiceName.hpp>
39 : #include <com/sun/star/presentation/XPresentationPage.hpp>
40 : #include <com/sun/star/text/XTextRange.hpp>
41 :
42 : using namespace ::sd;
43 : using namespace ::osl;
44 : using namespace ::com::sun::star;
45 : using namespace ::com::sun::star::uno;
46 :
47 0 : ImagePreparer::ImagePreparer(
48 : const uno::Reference<presentation::XSlideShowController>& rxController,
49 : Transmitter *aTransmitter )
50 : : xController( rxController ),
51 0 : pTransmitter( aTransmitter )
52 : {
53 : SAL_INFO( "sdremote", "ImagePreparer - start" );
54 0 : SetTimeout( 50 );
55 0 : mnSendingSlide = 0;
56 0 : Start();
57 0 : }
58 :
59 0 : ImagePreparer::~ImagePreparer()
60 : {
61 : SAL_INFO( "sdremote", "ImagePreparer - stop" );
62 0 : Stop();
63 0 : }
64 :
65 0 : void ImagePreparer::Invoke()
66 : {
67 0 : sal_uInt32 aSlides = xController->getSlideCount();
68 : SAL_INFO( "sdremote", "ImagePreparer " << xController->isRunning() <<
69 : " sending slide " << mnSendingSlide << " of " << aSlides );
70 0 : if ( xController->isRunning() && // not stopped/disposed of.
71 0 : mnSendingSlide < aSlides )
72 : {
73 0 : sendPreview( mnSendingSlide );
74 0 : sendNotes( mnSendingSlide );
75 0 : mnSendingSlide++;
76 0 : Start();
77 : }
78 : else
79 0 : Stop();
80 0 : }
81 :
82 0 : void ImagePreparer::sendPreview( sal_uInt32 aSlideNumber )
83 : {
84 : sal_uInt64 aSize;
85 : uno::Sequence<sal_Int8> aImageData = preparePreview( aSlideNumber, 320, 240,
86 0 : aSize );
87 0 : if ( !xController->isRunning() )
88 0 : return;
89 :
90 0 : OUStringBuffer aStrBuffer;
91 0 : ::sax::Converter::encodeBase64( aStrBuffer, aImageData );
92 :
93 : OString aEncodedShortString = OUStringToOString(
94 0 : aStrBuffer.makeStringAndClear(), RTL_TEXTENCODING_UTF8 );
95 :
96 : // Start the writing
97 0 : OStringBuffer aBuffer;
98 :
99 0 : aBuffer.append( "slide_preview\n" );
100 :
101 0 : aBuffer.append( OString::number( aSlideNumber ).getStr() );
102 0 : aBuffer.append( "\n" );
103 :
104 0 : aBuffer.append( aEncodedShortString.getStr() );
105 0 : aBuffer.append( "\n\n" );
106 : pTransmitter->addMessage( aBuffer.makeStringAndClear(),
107 0 : Transmitter::PRIORITY_LOW );
108 :
109 : }
110 :
111 0 : uno::Sequence<sal_Int8> ImagePreparer::preparePreview(
112 : sal_uInt32 aSlideNumber, sal_uInt32 aWidth, sal_uInt32 aHeight,
113 : sal_uInt64 &rSize )
114 : {
115 0 : OUString aFileURL;
116 0 : FileBase::createTempFile( 0, 0, &aFileURL );
117 :
118 : uno::Reference< drawing::XGraphicExportFilter > xFilter =
119 0 : drawing::GraphicExportFilter::create( ::comphelper::getProcessComponentContext() );
120 :
121 0 : if ( !xController->isRunning() )
122 0 : return uno::Sequence<sal_Int8>();
123 :
124 : uno::Reference< lang::XComponent > xSourceDoc(
125 0 : xController->getSlideByIndex( aSlideNumber ),
126 0 : uno::UNO_QUERY_THROW );
127 :
128 0 : xFilter->setSourceDocument( xSourceDoc );
129 :
130 0 : uno::Sequence< beans::PropertyValue > aFilterData(3);
131 :
132 0 : aFilterData[0].Name = "PixelWidth";
133 0 : aFilterData[0].Value <<= aWidth;
134 :
135 0 : aFilterData[1].Name = "PixelHeight";
136 0 : aFilterData[1].Value <<= aHeight;
137 :
138 0 : aFilterData[2].Name = "ColorMode";
139 0 : aFilterData[2].Value <<= sal_Int32(0); // 0: Color, 1: B&W
140 :
141 0 : uno::Sequence< beans::PropertyValue > aProps(3);
142 :
143 0 : aProps[0].Name = "MediaType";
144 0 : aProps[0].Value <<= OUString( "image/png" );
145 :
146 0 : aProps[1].Name = "URL";
147 0 : aProps[1].Value <<= aFileURL;
148 :
149 0 : aProps[2].Name = "FilterData";
150 0 : aProps[2].Value <<= aFilterData;
151 :
152 0 : xFilter->filter( aProps );
153 :
154 : // FIXME: error handling.
155 :
156 0 : File aFile( aFileURL );
157 0 : aFile.open(0);
158 : sal_uInt64 aRead;
159 0 : rSize = 0;
160 0 : aFile.getSize( rSize );
161 0 : uno::Sequence<sal_Int8> aContents( rSize );
162 :
163 0 : aFile.read( aContents.getArray(), rSize, aRead );
164 0 : aFile.close();
165 0 : File::remove( aFileURL );
166 0 : return aContents;
167 :
168 : }
169 :
170 0 : void ImagePreparer::sendNotes( sal_uInt32 aSlideNumber )
171 : {
172 :
173 0 : OString aNotes = prepareNotes( aSlideNumber );
174 :
175 0 : if ( aNotes.isEmpty() )
176 0 : return;
177 :
178 : // OUStringBuffer aStrBuffer;
179 : // ::sax::Converter::encodeBase64( aStrBuffer, aTemp );
180 :
181 : // OString aNotes = OUStringToOString(
182 : // aStrBuffer.makeStringAndClear(), RTL_TEXTENCODING_UTF8 );
183 :
184 0 : if ( !xController->isRunning() )
185 0 : return;
186 :
187 : // Start the writing
188 0 : OStringBuffer aBuffer;
189 :
190 0 : aBuffer.append( "slide_notes\n" );
191 :
192 0 : aBuffer.append( OString::number( aSlideNumber ).getStr() );
193 0 : aBuffer.append( "\n" );
194 :
195 0 : aBuffer.append( "<html><body>" );
196 0 : aBuffer.append( aNotes );
197 0 : aBuffer.append( "</body></html>" );
198 0 : aBuffer.append( "\n\n" );
199 : pTransmitter->addMessage( aBuffer.makeStringAndClear(),
200 0 : Transmitter::PRIORITY_LOW );
201 : }
202 :
203 : // Code copied from sdremote/source/presenter/PresenterNotesView.cxx
204 0 : OString ImagePreparer::prepareNotes( sal_uInt32 aSlideNumber )
205 : {
206 0 : OUStringBuffer aRet;
207 :
208 0 : if ( !xController->isRunning() )
209 0 : return "";
210 :
211 0 : uno::Reference<css::drawing::XDrawPage> aNotesPage;
212 : uno::Reference< drawing::XDrawPage > xSourceDoc(
213 0 : xController->getSlideByIndex( aSlideNumber ),
214 0 : uno::UNO_QUERY_THROW );
215 : uno::Reference<presentation::XPresentationPage> xPresentationPage(
216 0 : xSourceDoc, UNO_QUERY);
217 0 : if (xPresentationPage.is())
218 0 : aNotesPage = xPresentationPage->getNotesPage();
219 : else
220 0 : return "";
221 :
222 : static const OUString sNotesShapeName (
223 0 : "com.sun.star.presentation.NotesShape" );
224 : static const OUString sTextShapeName (
225 0 : "com.sun.star.drawing.TextShape" );
226 :
227 0 : uno::Reference<container::XIndexAccess> xIndexAccess ( aNotesPage, UNO_QUERY);
228 0 : if (xIndexAccess.is())
229 : {
230 :
231 : // Iterate over all shapes and find the one that holds the text.
232 0 : sal_Int32 nCount (xIndexAccess->getCount());
233 0 : for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
234 : {
235 :
236 : uno::Reference<lang::XServiceName> xServiceName (
237 0 : xIndexAccess->getByIndex(nIndex), UNO_QUERY);
238 0 : if (xServiceName.is()
239 0 : && xServiceName->getServiceName().equals(sNotesShapeName))
240 : {
241 0 : uno::Reference<text::XTextRange> xText (xServiceName, UNO_QUERY);
242 0 : if (xText.is())
243 : {
244 0 : aRet.append(xText->getString());
245 0 : aRet.append("<br/>");
246 0 : }
247 : }
248 : else
249 : {
250 : uno::Reference<drawing::XShapeDescriptor> xShapeDescriptor (
251 0 : xIndexAccess->getByIndex(nIndex), UNO_QUERY);
252 0 : if (xShapeDescriptor.is())
253 : {
254 0 : OUString sType (xShapeDescriptor->getShapeType());
255 0 : if (sType.equals(sNotesShapeName) || sType.equals(sTextShapeName))
256 : {
257 : uno::Reference<text::XTextRange> xText (
258 0 : xIndexAccess->getByIndex(nIndex), UNO_QUERY);
259 0 : if (xText.is())
260 : {
261 0 : aRet.append(xText->getString());
262 0 : aRet.append("<br/>");
263 0 : }
264 0 : }
265 0 : }
266 : }
267 0 : }
268 : }
269 : // Replace all newlines with <br\> tags
270 0 : for ( sal_Int32 i = 0; i < aRet.getLength(); i++ )
271 : {
272 0 : if ( aRet[i] == '\n' )
273 : {
274 0 : aRet[i]= '<';
275 0 : aRet.insert( i+1, "br/>" );
276 : }
277 : }
278 : return OUStringToOString(
279 0 : aRet.makeStringAndClear(), RTL_TEXTENCODING_UTF8 );
280 : }
281 :
282 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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