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 0 : class allSanes
114 : {
115 : private:
116 : int mnRefCount;
117 : public:
118 : sanevec m_aSanes;
119 0 : allSanes() : mnRefCount(0) {}
120 : void acquire();
121 : void release();
122 : };
123 :
124 0 : void allSanes::acquire()
125 : {
126 0 : ++mnRefCount;
127 0 : }
128 :
129 0 : 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 0 : --mnRefCount;
134 0 : if (!mnRefCount)
135 0 : m_aSanes.clear();
136 0 : }
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::MutexGuard aGuard( m_pHolder->m_aProtector );
185 0 : BitmapTransporter* pTransporter = new BitmapTransporter;
186 0 : Reference< XInterface > aIf( static_cast< OWeakObject* >( pTransporter ) );
187 :
188 0 : m_pHolder->m_xBitmap = Reference< css::awt::XBitmap >( aIf, UNO_QUERY );
189 :
190 0 : m_pHolder->m_bBusy = true;
191 0 : if( m_pHolder->m_aSane.IsOpen() )
192 : {
193 0 : int nOption = m_pHolder->m_aSane.GetOptionByName( "preview" );
194 0 : if( nOption != -1 )
195 0 : m_pHolder->m_aSane.SetOptionValue( nOption, (sal_Bool)sal_False );
196 :
197 0 : m_pHolder->m_nError =
198 0 : m_pHolder->m_aSane.Start( *pTransporter ) ?
199 0 : ScanError_ScanErrorNone : ScanError_ScanCanceled;
200 : }
201 : else
202 0 : m_pHolder->m_nError = ScanError_ScannerNotAvailable;
203 :
204 :
205 0 : Reference< XInterface > xXInterface( static_cast< OWeakObject* >( m_pManager ) );
206 0 : m_xListener->disposing( com::sun::star::lang::EventObject(xXInterface) );
207 0 : m_pHolder->m_bBusy = false;
208 0 : }
209 :
210 :
211 : // - ScannerManager -
212 :
213 :
214 0 : void ScannerManager::AcquireData()
215 : {
216 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
217 0 : theSanes::get().acquire();
218 0 : }
219 :
220 0 : void ScannerManager::ReleaseData()
221 : {
222 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
223 0 : theSanes::get().release();
224 0 : }
225 :
226 :
227 :
228 0 : css::awt::Size ScannerManager::getSize() throw(std::exception)
229 : {
230 0 : css::awt::Size aRet;
231 0 : aRet.Width = aRet.Height = 0;
232 0 : return aRet;
233 : }
234 :
235 :
236 :
237 0 : Sequence< sal_Int8 > ScannerManager::getDIB() throw(std::exception)
238 : {
239 0 : return Sequence< sal_Int8 >();
240 : }
241 :
242 :
243 :
244 0 : Sequence< ScannerContext > ScannerManager::getAvailableScanners() throw(std::exception)
245 : {
246 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
247 0 : sanevec &rSanes = theSanes::get().m_aSanes;
248 :
249 0 : if( rSanes.empty() )
250 : {
251 0 : boost::shared_ptr<SaneHolder> pSaneHolder(new SaneHolder);
252 0 : if( Sane::IsSane() )
253 0 : rSanes.push_back( pSaneHolder );
254 : }
255 :
256 0 : if( Sane::IsSane() )
257 : {
258 0 : Sequence< ScannerContext > aRet(1);
259 0 : aRet[0].ScannerName = "SANE";
260 0 : aRet[0].InternalData = 0;
261 0 : return aRet;
262 : }
263 :
264 0 : return Sequence< ScannerContext >();
265 : }
266 :
267 :
268 :
269 0 : sal_Bool ScannerManager::configureScannerAndScan( ScannerContext& scanner_context,
270 : const Reference< com::sun::star::lang::XEventListener >& listener ) throw( ScannerException, std::exception )
271 : {
272 : bool bRet;
273 : bool bScan;
274 : {
275 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
276 0 : sanevec &rSanes = theSanes::get().m_aSanes;
277 :
278 : #if OSL_DEBUG_LEVEL > 1
279 : fprintf( stderr, "ScannerManager::configureScanner\n" );
280 : #endif
281 :
282 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
283 : throw ScannerException(
284 : OUString("Scanner does not exist"),
285 : Reference< XScannerManager >( this ),
286 : ScanError_InvalidContext
287 0 : );
288 :
289 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
290 0 : if( pHolder->m_bBusy )
291 : throw ScannerException(
292 : OUString("Scanner is busy"),
293 : Reference< XScannerManager >( this ),
294 : ScanError_ScanInProgress
295 0 : );
296 :
297 0 : pHolder->m_bBusy = true;
298 0 : SaneDlg aDlg( NULL, pHolder->m_aSane, listener.is() );
299 0 : bRet = aDlg.Execute();
300 0 : bScan = aDlg.getDoScan();
301 0 : pHolder->m_bBusy = false;
302 : }
303 0 : if ( bScan )
304 0 : startScan( scanner_context, listener );
305 :
306 0 : return bRet;
307 : }
308 :
309 :
310 :
311 0 : void ScannerManager::startScan( const ScannerContext& scanner_context,
312 : const Reference< com::sun::star::lang::XEventListener >& listener ) throw( ScannerException, std::exception )
313 : {
314 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
315 0 : sanevec &rSanes = theSanes::get().m_aSanes;
316 :
317 : #if OSL_DEBUG_LEVEL > 1
318 : fprintf( stderr, "ScannerManager::startScan\n" );
319 : #endif
320 :
321 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
322 : throw ScannerException(
323 : OUString("Scanner does not exist"),
324 : Reference< XScannerManager >( this ),
325 : ScanError_InvalidContext
326 0 : );
327 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
328 0 : if( pHolder->m_bBusy )
329 : throw ScannerException(
330 : OUString("Scanner is busy"),
331 : Reference< XScannerManager >( this ),
332 : ScanError_ScanInProgress
333 0 : );
334 0 : pHolder->m_bBusy = true;
335 :
336 0 : ScannerThread* pThread = new ScannerThread( pHolder, listener, this );
337 0 : pThread->create();
338 0 : }
339 :
340 :
341 :
342 0 : ScanError ScannerManager::getError( const ScannerContext& scanner_context ) throw( ScannerException, std::exception )
343 : {
344 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
345 0 : sanevec &rSanes = theSanes::get().m_aSanes;
346 :
347 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
348 : throw ScannerException(
349 : OUString("Scanner does not exist"),
350 : Reference< XScannerManager >( this ),
351 : ScanError_InvalidContext
352 0 : );
353 :
354 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
355 :
356 0 : return pHolder->m_nError;
357 : }
358 :
359 :
360 :
361 0 : Reference< css::awt::XBitmap > ScannerManager::getBitmap( const ScannerContext& scanner_context ) throw( ScannerException, std::exception )
362 : {
363 0 : osl::MutexGuard aGuard( theSaneProtector::get() );
364 0 : sanevec &rSanes = theSanes::get().m_aSanes;
365 :
366 0 : if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
367 : throw ScannerException(
368 : OUString("Scanner does not exist"),
369 : Reference< XScannerManager >( this ),
370 : ScanError_InvalidContext
371 0 : );
372 0 : boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
373 :
374 0 : osl::MutexGuard aProtGuard( pHolder->m_aProtector );
375 :
376 0 : Reference< css::awt::XBitmap > xRet( pHolder->m_xBitmap );
377 0 : pHolder->m_xBitmap = Reference< css::awt::XBitmap >();
378 :
379 0 : return xRet;
380 : }
381 :
382 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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