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