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 <scanner.hxx>
21 : #include <sanedlg.hxx>
22 : #include <osl/thread.hxx>
23 : #include <cppuhelper/queryinterface.hxx>
24 : #include <boost/shared_ptr.hpp>
25 :
26 : #if OSL_DEBUG_LEVEL > 1
27 : #include <stdio.h>
28 : #endif
29 :
30 0 : BitmapTransporter::BitmapTransporter()
31 : {
32 : #if OSL_DEBUG_LEVEL > 1
33 : fprintf( stderr, "BitmapTransporter\n" );
34 : #endif
35 0 : }
36 :
37 0 : BitmapTransporter::~BitmapTransporter()
38 : {
39 : #if OSL_DEBUG_LEVEL > 1
40 : fprintf( stderr, "~BitmapTransporter\n" );
41 : #endif
42 0 : }
43 :
44 :
45 :
46 0 : Any SAL_CALL BitmapTransporter::queryInterface( const Type& rType ) throw( RuntimeException, std::exception )
47 : {
48 0 : const Any aRet( cppu::queryInterface( rType, static_cast< css::awt::XBitmap* >( this ) ) );
49 :
50 0 : return( aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ) );
51 : }
52 :
53 :
54 :
55 0 : css::awt::Size BitmapTransporter::getSize() throw(std::exception)
56 : {
57 0 : osl::MutexGuard aGuard( m_aProtector );
58 0 : int nPreviousPos = m_aStream.Tell();
59 0 : css::awt::Size aRet;
60 :
61 : // ensure that there is at least a header
62 0 : m_aStream.Seek( STREAM_SEEK_TO_END );
63 0 : int nLen = m_aStream.Tell();
64 0 : if( nLen > 15 )
65 : {
66 0 : m_aStream.Seek( 4 );
67 0 : m_aStream.ReadInt32( aRet.Width ).ReadInt32( aRet.Height );
68 : }
69 : else
70 0 : aRet.Width = aRet.Height = 0;
71 :
72 0 : m_aStream.Seek( nPreviousPos );
73 :
74 0 : return aRet;
75 : }
76 :
77 :
78 :
79 0 : Sequence< sal_Int8 > BitmapTransporter::getDIB() throw(std::exception)
80 : {
81 0 : osl::MutexGuard aGuard( m_aProtector );
82 0 : int nPreviousPos = m_aStream.Tell();
83 :
84 : // create return value
85 0 : m_aStream.Seek( STREAM_SEEK_TO_END );
86 0 : int nBytes = m_aStream.Tell();
87 0 : m_aStream.Seek( 0 );
88 :
89 0 : Sequence< sal_Int8 > aValue( nBytes );
90 0 : m_aStream.Read( aValue.getArray(), nBytes );
91 0 : m_aStream.Seek( nPreviousPos );
92 :
93 0 : return aValue;
94 : }
95 :
96 :
97 : // - SaneHolder -
98 :
99 :
100 0 : struct SaneHolder
101 : {
102 : Sane m_aSane;
103 : Reference< css::awt::XBitmap > m_xBitmap;
104 : osl::Mutex m_aProtector;
105 : ScanError m_nError;
106 : bool m_bBusy;
107 :
108 0 : SaneHolder() : m_nError(ScanError_ScanErrorNone), m_bBusy(false) {}
109 : };
110 :
111 : namespace
112 : {
113 : typedef std::vector< boost::shared_ptr<SaneHolder> > sanevec;
114 14 : class allSanes
115 : {
116 : private:
117 : int mnRefCount;
118 : public:
119 : sanevec m_aSanes;
120 14 : allSanes() : mnRefCount(0) {}
121 : void acquire();
122 : void release();
123 : };
124 :
125 126 : void allSanes::acquire()
126 : {
127 126 : ++mnRefCount;
128 126 : }
129 :
130 126 : void allSanes::release()
131 : {
132 : // was unused, now because of i99835: "Scanning interface not SANE API
133 : // compliant" destroy all SaneHolder to get Sane Dtor called
134 126 : --mnRefCount;
135 126 : if (!mnRefCount)
136 113 : m_aSanes.clear();
137 126 : }
138 :
139 : struct theSaneProtector : public rtl::Static<osl::Mutex, theSaneProtector> {};
140 : struct theSanes : public rtl::Static<allSanes, theSanes> {};
141 : }
142 :
143 :
144 : // - ScannerThread -
145 :
146 :
147 : class ScannerThread : public osl::Thread
148 : {
149 : boost::shared_ptr<SaneHolder> m_pHolder;
150 : Reference< com::sun::star::lang::XEventListener > m_xListener;
151 : ScannerManager* m_pManager; // just for the disposing call
152 :
153 : public:
154 : virtual void run() SAL_OVERRIDE;
155 0 : virtual void onTerminated() SAL_OVERRIDE { delete this; }
156 : public:
157 : ScannerThread( boost::shared_ptr<SaneHolder> pHolder,
158 : const Reference< com::sun::star::lang::XEventListener >& listener,
159 : ScannerManager* pManager );
160 : virtual ~ScannerThread();
161 : };
162 :
163 :
164 :
165 0 : ScannerThread::ScannerThread(
166 : boost::shared_ptr<SaneHolder> pHolder,
167 : const Reference< com::sun::star::lang::XEventListener >& listener,
168 : ScannerManager* pManager )
169 0 : : m_pHolder( pHolder ), m_xListener( listener ), m_pManager( pManager )
170 : {
171 : #if OSL_DEBUG_LEVEL > 1
172 : fprintf( stderr, "ScannerThread\n" );
173 : #endif
174 0 : }
175 :
176 0 : ScannerThread::~ScannerThread()
177 : {
178 : #if OSL_DEBUG_LEVEL > 1
179 : fprintf( stderr, "~ScannerThread\n" );
180 : #endif
181 0 : }
182 :
183 0 : void ScannerThread::run()
184 : {
185 0 : osl_setThreadName("ScannerThread");
186 :
187 0 : osl::MutexGuard aGuard( m_pHolder->m_aProtector );
188 0 : BitmapTransporter* pTransporter = new BitmapTransporter;
189 0 : Reference< XInterface > aIf( static_cast< OWeakObject* >( pTransporter ) );
190 :
191 0 : m_pHolder->m_xBitmap = Reference< css::awt::XBitmap >( aIf, UNO_QUERY );
192 :
193 0 : m_pHolder->m_bBusy = true;
194 0 : if( m_pHolder->m_aSane.IsOpen() )
195 : {
196 0 : int nOption = m_pHolder->m_aSane.GetOptionByName( "preview" );
197 0 : if( nOption != -1 )
198 0 : m_pHolder->m_aSane.SetOptionValue( nOption, false );
199 :
200 0 : m_pHolder->m_nError =
201 0 : m_pHolder->m_aSane.Start( *pTransporter ) ?
202 0 : ScanError_ScanErrorNone : ScanError_ScanCanceled;
203 : }
204 : else
205 0 : m_pHolder->m_nError = ScanError_ScannerNotAvailable;
206 :
207 :
208 0 : Reference< XInterface > xXInterface( static_cast< OWeakObject* >( m_pManager ) );
209 0 : m_xListener->disposing( com::sun::star::lang::EventObject(xXInterface) );
210 0 : m_pHolder->m_bBusy = false;
211 0 : }
212 :
213 :
214 : // - ScannerManager -
215 :
216 :
217 126 : void ScannerManager::AcquireData()
218 : {
219 126 : osl::MutexGuard aGuard( theSaneProtector::get() );
220 126 : theSanes::get().acquire();
221 126 : }
222 :
223 126 : void ScannerManager::ReleaseData()
224 : {
225 126 : osl::MutexGuard aGuard( theSaneProtector::get() );
226 126 : theSanes::get().release();
227 126 : }
228 :
229 :
230 :
231 0 : css::awt::Size ScannerManager::getSize() throw(std::exception)
232 : {
233 0 : css::awt::Size aRet;
234 0 : aRet.Width = aRet.Height = 0;
235 0 : return aRet;
236 : }
237 :
238 :
239 :
240 0 : Sequence< sal_Int8 > ScannerManager::getDIB() throw(std::exception)
241 : {
242 0 : return Sequence< sal_Int8 >();
243 : }
244 :
245 :
246 :
247 0 : Sequence< ScannerContext > ScannerManager::getAvailableScanners() throw(std::exception)
248 : {
249 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
250 0 : sanevec &rSanes = theSanes::get().m_aSanes;
251 :
252 0 : if( rSanes.empty() )
253 : {
254 0 : boost::shared_ptr<SaneHolder> pSaneHolder(new SaneHolder);
255 0 : if( Sane::IsSane() )
256 0 : rSanes.push_back( pSaneHolder );
257 : }
258 :
259 0 : if( Sane::IsSane() )
260 : {
261 0 : Sequence< ScannerContext > aRet(1);
262 0 : aRet[0].ScannerName = "SANE";
263 0 : aRet[0].InternalData = 0;
264 0 : return aRet;
265 : }
266 :
267 0 : return Sequence< ScannerContext >();
268 : }
269 :
270 :
271 :
272 0 : sal_Bool ScannerManager::configureScannerAndScan( ScannerContext& scanner_context,
273 : const Reference< com::sun::star::lang::XEventListener >& listener )
274 : throw (ScannerException, RuntimeException, std::exception)
275 : {
276 : bool bRet;
277 : bool bScan;
278 : {
279 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
280 0 : sanevec &rSanes = theSanes::get().m_aSanes;
281 :
282 : #if OSL_DEBUG_LEVEL > 1
283 : fprintf( stderr, "ScannerManager::configureScanner\n" );
284 : #endif
285 :
286 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
287 : throw ScannerException(
288 : "Scanner does not exist",
289 : Reference< XScannerManager >( this ),
290 : ScanError_InvalidContext
291 0 : );
292 :
293 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
294 0 : if( pHolder->m_bBusy )
295 : throw ScannerException(
296 : "Scanner is busy",
297 : Reference< XScannerManager >( this ),
298 : ScanError_ScanInProgress
299 0 : );
300 :
301 0 : pHolder->m_bBusy = true;
302 0 : ScopedVclPtrInstance< SaneDlg > aDlg(nullptr, pHolder->m_aSane, listener.is());
303 0 : bRet = aDlg->Execute();
304 0 : bScan = aDlg->getDoScan();
305 0 : pHolder->m_bBusy = false;
306 : }
307 0 : if ( bScan )
308 0 : startScan( scanner_context, listener );
309 :
310 0 : return bRet;
311 : }
312 :
313 :
314 :
315 0 : void ScannerManager::startScan( const ScannerContext& scanner_context,
316 : const Reference< com::sun::star::lang::XEventListener >& listener ) throw( ScannerException, std::exception )
317 : {
318 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
319 0 : sanevec &rSanes = theSanes::get().m_aSanes;
320 :
321 : #if OSL_DEBUG_LEVEL > 1
322 : fprintf( stderr, "ScannerManager::startScan\n" );
323 : #endif
324 :
325 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
326 : throw ScannerException(
327 : "Scanner does not exist",
328 : Reference< XScannerManager >( this ),
329 : ScanError_InvalidContext
330 0 : );
331 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
332 0 : if( pHolder->m_bBusy )
333 : throw ScannerException(
334 : "Scanner is busy",
335 : Reference< XScannerManager >( this ),
336 : ScanError_ScanInProgress
337 0 : );
338 0 : pHolder->m_bBusy = true;
339 :
340 0 : ScannerThread* pThread = new ScannerThread( pHolder, listener, this );
341 0 : pThread->create();
342 0 : }
343 :
344 :
345 :
346 0 : ScanError ScannerManager::getError( const ScannerContext& scanner_context ) throw( ScannerException, std::exception )
347 : {
348 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
349 0 : sanevec &rSanes = theSanes::get().m_aSanes;
350 :
351 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
352 : throw ScannerException(
353 : "Scanner does not exist",
354 : Reference< XScannerManager >( this ),
355 : ScanError_InvalidContext
356 0 : );
357 :
358 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
359 :
360 0 : return pHolder->m_nError;
361 : }
362 :
363 :
364 :
365 0 : Reference< css::awt::XBitmap > ScannerManager::getBitmap( const ScannerContext& scanner_context ) throw( ScannerException, std::exception )
366 : {
367 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
368 0 : sanevec &rSanes = theSanes::get().m_aSanes;
369 :
370 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
371 : throw ScannerException(
372 : "Scanner does not exist",
373 : Reference< XScannerManager >( this ),
374 : ScanError_InvalidContext
375 0 : );
376 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
377 :
378 0 : osl::MutexGuard aProtGuard( pHolder->m_aProtector );
379 :
380 0 : Reference< css::awt::XBitmap > xRet( pHolder->m_xBitmap );
381 0 : pHolder->m_xBitmap = Reference< css::awt::XBitmap >();
382 :
383 0 : return xRet;
384 42 : }
385 :
386 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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