Line data Source code
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 <config_folders.h>
21 :
22 : #include "sal/config.h"
23 :
24 : #include <boost/shared_ptr.hpp>
25 :
26 : #include "com/sun/star/container/XNameAccess.hpp"
27 : #include "com/sun/star/io/XInputStream.hpp"
28 : #include "com/sun/star/lang/Locale.hpp"
29 : #include "com/sun/star/lang/XMultiServiceFactory.hpp"
30 : #include "com/sun/star/packages/zip/ZipFileAccess.hpp"
31 : #include "com/sun/star/uno/Any.hxx"
32 : #include "com/sun/star/uno/Exception.hpp"
33 : #include "com/sun/star/uno/RuntimeException.hpp"
34 : #include "com/sun/star/uno/Sequence.hxx"
35 : #include "comphelper/processfactory.hxx"
36 : #include "osl/file.hxx"
37 : #include "osl/diagnose.h"
38 : #include "rtl/bootstrap.hxx"
39 :
40 : #include "tools/stream.hxx"
41 : #include "tools/urlobj.hxx"
42 : #include "vcl/bitmapex.hxx"
43 : #include <vcl/dibtools.hxx>
44 : #include "vcl/pngread.hxx"
45 : #include "vcl/settings.hxx"
46 : #include "vcl/svapp.hxx"
47 : #include "impimagetree.hxx"
48 :
49 : namespace {
50 :
51 0 : static OUString createPath(
52 : OUString const & name, sal_Int32 pos, OUString const & locale)
53 : {
54 0 : return name.copy(0, pos + 1) + locale + name.copy(pos);
55 : }
56 :
57 0 : static boost::shared_ptr< SvStream > wrapFile(osl::File & file)
58 : {
59 : // This could use SvInputStream instead if that did not have a broken
60 : // SeekPos implementation for an XInputStream that is not also XSeekable
61 : // (cf. "@@@" at tags/DEV300_m37/svtools/source/misc1/strmadpt.cxx@264807
62 : // l. 593):
63 0 : boost::shared_ptr< SvStream > s(new SvMemoryStream);
64 : for (;;) {
65 : void *data[2048];
66 : sal_uInt64 n;
67 0 : file.read(data, 2048, n);
68 0 : s->Write(data, n);
69 0 : if (n < 2048) {
70 0 : break;
71 : }
72 0 : }
73 0 : s->Seek(0);
74 0 : return s;
75 : }
76 :
77 0 : static boost::shared_ptr< SvStream > wrapStream(
78 : css::uno::Reference< css::io::XInputStream > const & stream)
79 : {
80 : // This could use SvInputStream instead if that did not have a broken
81 : // SeekPos implementation for an XInputStream that is not also XSeekable
82 : // (cf. "@@@" at tags/DEV300_m37/svtools/source/misc1/strmadpt.cxx@264807
83 : // l. 593):
84 : OSL_ASSERT(stream.is());
85 0 : boost::shared_ptr< SvStream > s(new SvMemoryStream);
86 : for (;;) {
87 0 : sal_Int32 const size = 2048;
88 0 : css::uno::Sequence< sal_Int8 > data(size);
89 0 : sal_Int32 n = stream->readBytes(data, size);
90 0 : s->Write(data.getConstArray(), n);
91 0 : if (n < size) {
92 0 : break;
93 : }
94 0 : }
95 0 : s->Seek(0);
96 0 : return s;
97 : }
98 :
99 0 : static void loadImageFromStream(
100 : boost::shared_ptr< SvStream > pStream,
101 : OUString const & rPath, BitmapEx & rBitmap)
102 : {
103 0 : if (rPath.endsWith(".png"))
104 : {
105 0 : vcl::PNGReader aPNGReader( *pStream );
106 0 : aPNGReader.SetIgnoreGammaChunk( true );
107 0 : rBitmap = aPNGReader.Read();
108 : } else {
109 0 : ReadDIBBitmapEx(rBitmap, *pStream);
110 : }
111 0 : }
112 :
113 : }
114 :
115 1 : ImplImageTree::ImplImageTree() { m_cacheIcons = true; }
116 :
117 1 : ImplImageTree::~ImplImageTree() {}
118 :
119 0 : bool ImplImageTree::loadImage(
120 : OUString const & name, OUString const & style, BitmapEx & bitmap,
121 : bool localized, bool loadMissing )
122 : {
123 0 : bool found = false;
124 : try {
125 0 : found = doLoadImage(name, style, bitmap, localized);
126 0 : } catch (css::uno::RuntimeException &) {
127 0 : if (!loadMissing)
128 0 : throw;
129 : }
130 0 : if (found || !loadMissing)
131 0 : return found;
132 :
133 : SAL_INFO("vcl", "ImplImageTree::loadImage exception couldn't load \""
134 : << name << "\", fetching default image");
135 :
136 0 : return loadDefaultImage(style, bitmap);
137 : }
138 :
139 0 : bool ImplImageTree::loadDefaultImage(
140 : OUString const & style,
141 : BitmapEx& bitmap)
142 : {
143 : return doLoadImage(
144 : OUString("res/grafikde.png"),
145 0 : style, bitmap, false);
146 : }
147 :
148 0 : bool ImplImageTree::doLoadImage(
149 : OUString const & name, OUString const & style, BitmapEx & bitmap,
150 : bool localized)
151 : {
152 0 : setStyle(style);
153 0 : if (m_cacheIcons && iconCacheLookup(name, localized, bitmap)) {
154 0 : return true;
155 : }
156 0 : if (!bitmap.IsEmpty()) {
157 0 : bitmap.SetEmpty();
158 : }
159 0 : std::vector< OUString > paths;
160 0 : paths.push_back(getRealImageName(name));
161 0 : if (localized) {
162 0 : sal_Int32 pos = name.lastIndexOf('/');
163 0 : if (pos != -1) {
164 : // find() uses a reverse iterator, so push in reverse order.
165 0 : std::vector< OUString > aFallbacks( Application::GetSettings().GetUILanguageTag().getFallbackStrings( true));
166 0 : for (std::vector< OUString >::reverse_iterator it( aFallbacks.rbegin());
167 0 : it != aFallbacks.rend(); ++it)
168 : {
169 0 : paths.push_back( getRealImageName( createPath(name, pos, *it) ) );
170 0 : }
171 : }
172 : }
173 0 : bool found = false;
174 : try {
175 0 : found = find(paths, bitmap);
176 0 : } catch (css::uno::RuntimeException &) {
177 0 : throw;
178 0 : } catch (const css::uno::Exception & e) {
179 : SAL_INFO("vcl", "ImplImageTree::doLoadImage exception " << e.Message);
180 : }
181 0 : if (m_cacheIcons && found) {
182 0 : m_iconCache[name.intern()] = std::make_pair(localized, bitmap);
183 : }
184 0 : return found;
185 : }
186 :
187 1 : void ImplImageTree::shutDown() {
188 1 : m_style = OUString();
189 : // for safety; empty m_style means "not initialized"
190 1 : m_iconCache.clear();
191 1 : m_linkHash.clear();
192 1 : }
193 :
194 0 : void ImplImageTree::setStyle(OUString const & style) {
195 : OSL_ASSERT(!style.isEmpty()); // empty m_style means "not initialized"
196 0 : if (style != m_style) {
197 0 : m_style = style;
198 0 : resetPaths();
199 0 : m_iconCache.clear();
200 0 : m_linkHash.clear();
201 0 : loadImageLinks();
202 : }
203 0 : }
204 :
205 0 : void ImplImageTree::resetPaths() {
206 0 : OUString url( "$BRAND_BASE_DIR/" LIBO_SHARE_FOLDER "/config/" );
207 0 : rtl::Bootstrap::expandMacros(url);
208 0 : if ( m_style != "default" )
209 : {
210 0 : INetURLObject u(url);
211 : OSL_ASSERT(!u.HasError());
212 0 : bool ok = u.Append("images_" + m_style, INetURLObject::ENCODE_ALL);
213 : OSL_ASSERT(ok); (void) ok;
214 0 : url = u.GetMainURL(INetURLObject::NO_DECODE);
215 : }
216 : else
217 0 : url += "images";
218 0 : m_path = std::make_pair(
219 0 : url, css::uno::Reference< css::container::XNameAccess >());
220 0 : }
221 :
222 0 : bool ImplImageTree::iconCacheLookup(
223 : OUString const & name, bool localized, BitmapEx & bitmap)
224 : {
225 0 : IconCache::iterator i(m_iconCache.find(getRealImageName(name)));
226 0 : if (i != m_iconCache.end() && i->second.first == localized) {
227 0 : bitmap = i->second.second;
228 0 : return true;
229 : }
230 0 : return false;
231 : }
232 :
233 0 : bool ImplImageTree::find(
234 : std::vector< OUString > const & paths, BitmapEx & bitmap)
235 : {
236 0 : if (!m_cacheIcons) {
237 0 : for (std::vector< OUString >::const_reverse_iterator j(
238 0 : paths.rbegin());
239 0 : j != paths.rend(); ++j)
240 : {
241 0 : osl::File file(m_path.first + "/" + *j);
242 0 : if (file.open(osl_File_OpenFlag_Read) == ::osl::FileBase::E_None) {
243 0 : loadImageFromStream( wrapFile(file), *j, bitmap );
244 0 : file.close();
245 0 : return true;
246 : }
247 0 : }
248 : }
249 :
250 0 : if (!m_path.second.is()) {
251 : try {
252 0 : m_path.second = css::packages::zip::ZipFileAccess::createWithURL(comphelper::getProcessComponentContext(), m_path.first + ".zip");
253 0 : } catch (const css::uno::RuntimeException &) {
254 0 : throw;
255 0 : } catch (const css::uno::Exception & e) {
256 : SAL_INFO("vcl", "ImplImageTree::find exception "
257 : << e.Message << " for " << m_path.first);
258 0 : return false;
259 : }
260 : }
261 0 : for (std::vector< OUString >::const_reverse_iterator j(paths.rbegin());
262 0 : j != paths.rend(); ++j)
263 : {
264 0 : if (m_path.second->hasByName(*j)) {
265 0 : css::uno::Reference< css::io::XInputStream > s;
266 0 : bool ok = m_path.second->getByName(*j) >>= s;
267 : OSL_ASSERT(ok); (void) ok;
268 0 : loadImageFromStream( wrapStream(s), *j, bitmap );
269 0 : return true;
270 : }
271 : }
272 0 : return false;
273 : }
274 :
275 0 : void ImplImageTree::loadImageLinks()
276 : {
277 0 : const OUString aLinkFilename("links.txt");
278 :
279 0 : if (!m_cacheIcons)
280 : {
281 0 : osl::File file(m_path.first + "/" + aLinkFilename);
282 0 : if (file.open(osl_File_OpenFlag_Read) == ::osl::FileBase::E_None)
283 : {
284 0 : parseLinkFile( wrapFile(file) );
285 0 : file.close();
286 0 : return;
287 0 : }
288 : }
289 :
290 0 : if ( !m_path.second.is() )
291 : {
292 : try
293 : {
294 0 : m_path.second = css::packages::zip::ZipFileAccess::createWithURL(comphelper::getProcessComponentContext(), m_path.first + ".zip");
295 0 : } catch (const css::uno::RuntimeException &) {
296 0 : throw;
297 : }
298 0 : catch (const css::uno::Exception & e)
299 : {
300 : SAL_INFO("vcl", "ImplImageTree::find exception "
301 : << e.Message << " for " << m_path.first);
302 0 : return;
303 : }
304 : }
305 0 : if ( m_path.second->hasByName(aLinkFilename) )
306 : {
307 0 : css::uno::Reference< css::io::XInputStream > s;
308 0 : bool ok = m_path.second->getByName(aLinkFilename) >>= s;
309 : OSL_ASSERT(ok); (void) ok;
310 :
311 0 : parseLinkFile( wrapStream(s) );
312 0 : return;
313 0 : }
314 : }
315 :
316 0 : void ImplImageTree::parseLinkFile(boost::shared_ptr< SvStream > pStream)
317 : {
318 0 : OString aLine;
319 0 : OUString aLink, aOriginal;
320 0 : int nLineNo = 0;
321 0 : while ( pStream->ReadLine( aLine ) )
322 : {
323 0 : ++nLineNo;
324 0 : if ( aLine.isEmpty() )
325 0 : continue;
326 :
327 0 : sal_Int32 nIndex = 0;
328 0 : aLink = OStringToOUString( aLine.getToken(0, ' ', nIndex), RTL_TEXTENCODING_UTF8 );
329 0 : aOriginal = OStringToOUString( aLine.getToken(0, ' ', nIndex), RTL_TEXTENCODING_UTF8 );
330 :
331 : // skip comments, or incomplete entries
332 0 : if (aLink.isEmpty() || aLink[0] == '#' || aOriginal.isEmpty())
333 : {
334 0 : if (aLink.isEmpty() || aOriginal.isEmpty())
335 : SAL_WARN("vcl", "ImplImageTree::parseLinkFile: icon links.txt parse error, incomplete link at line " << nLineNo);
336 0 : continue;
337 : }
338 :
339 0 : m_linkHash[aLink] = aOriginal;
340 0 : }
341 0 : }
342 :
343 0 : OUString const & ImplImageTree::getRealImageName(OUString const & name)
344 : {
345 0 : IconLinkHash::iterator it(m_linkHash.find(name));
346 0 : if (it == m_linkHash.end())
347 0 : return name;
348 0 : return it->second;
349 : }
350 :
351 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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