393 lines
12 KiB
C++
393 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <scanner.hxx>
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#include <sanedlg.hxx>
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#include <osl/thread.hxx>
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#include <boost/shared_ptr.hpp>
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#include <boost/shared_ptr.hpp>
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#if OSL_DEBUG_LEVEL > 1
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#include <stdio.h>
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#endif
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BitmapTransporter::BitmapTransporter()
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{
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "BitmapTransporter\n" );
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#endif
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}
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BitmapTransporter::~BitmapTransporter()
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{
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "~BitmapTransporter\n" );
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#endif
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}
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// -----------------------------------------------------------------------------
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ANY SAL_CALL BitmapTransporter::queryInterface( const Type& rType ) throw( RuntimeException )
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{
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const ANY aRet( cppu::queryInterface( rType, static_cast< AWT::XBitmap* >( this ) ) );
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return( aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ) );
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}
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// -----------------------------------------------------------------------------
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AWT::Size BitmapTransporter::getSize() throw()
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{
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osl::MutexGuard aGuard( m_aProtector );
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int nPreviousPos = m_aStream.Tell();
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AWT::Size aRet;
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// ensure that there is at least a header
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m_aStream.Seek( STREAM_SEEK_TO_END );
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int nLen = m_aStream.Tell();
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if( nLen > 15 )
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{
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m_aStream.Seek( 4 );
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m_aStream >> aRet.Width >> aRet.Height;
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}
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else
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aRet.Width = aRet.Height = 0;
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m_aStream.Seek( nPreviousPos );
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return aRet;
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}
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// -----------------------------------------------------------------------------
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SEQ( sal_Int8 ) BitmapTransporter::getDIB() throw()
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{
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osl::MutexGuard aGuard( m_aProtector );
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int nPreviousPos = m_aStream.Tell();
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// create return value
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m_aStream.Seek( STREAM_SEEK_TO_END );
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int nBytes = m_aStream.Tell();
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m_aStream.Seek( 0 );
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SEQ( sal_Int8 ) aValue( nBytes );
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m_aStream.Read( aValue.getArray(), nBytes );
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m_aStream.Seek( nPreviousPos );
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return aValue;
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}
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// --------------
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// - SaneHolder -
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// --------------
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struct SaneHolder
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{
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Sane m_aSane;
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REF( AWT::XBitmap ) m_xBitmap;
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osl::Mutex m_aProtector;
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ScanError m_nError;
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bool m_bBusy;
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SaneHolder() : m_nError(ScanError_ScanErrorNone), m_bBusy(false) {}
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};
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namespace
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{
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typedef std::vector< boost::shared_ptr<SaneHolder> > sanevec;
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class allSanes
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{
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private:
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int mnRefCount;
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public:
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sanevec m_aSanes;
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allSanes() : mnRefCount(0) {}
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void acquire();
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void release();
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};
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void allSanes::acquire()
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{
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++mnRefCount;
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}
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void allSanes::release()
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{
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// was unused, now because of i99835: "Scanning interface not SANE API
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// compliant" destroy all SaneHolder to get Sane Dtor called
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--mnRefCount;
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if (!mnRefCount)
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m_aSanes.clear();
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}
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struct theSaneProtector : public rtl::Static<osl::Mutex, theSaneProtector> {};
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struct theSanes : public rtl::Static<allSanes, theSanes> {};
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}
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// -----------------
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// - ScannerThread -
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// -----------------
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class ScannerThread : public osl::Thread
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{
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boost::shared_ptr<SaneHolder> m_pHolder;
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REF( com::sun::star::lang::XEventListener ) m_xListener;
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ScannerManager* m_pManager; // just for the disposing call
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public:
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virtual void run();
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virtual void onTerminated() { delete this; }
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public:
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ScannerThread( boost::shared_ptr<SaneHolder> pHolder,
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const REF( com::sun::star::lang::XEventListener )& listener,
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ScannerManager* pManager );
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virtual ~ScannerThread();
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};
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// -----------------------------------------------------------------------------
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ScannerThread::ScannerThread(
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boost::shared_ptr<SaneHolder> pHolder,
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const REF( com::sun::star::lang::XEventListener )& listener,
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ScannerManager* pManager )
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: m_pHolder( pHolder ), m_xListener( listener ), m_pManager( pManager )
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{
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "ScannerThread\n" );
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#endif
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}
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ScannerThread::~ScannerThread()
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{
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "~ScannerThread\n" );
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#endif
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}
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void ScannerThread::run()
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{
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osl::MutexGuard aGuard( m_pHolder->m_aProtector );
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BitmapTransporter* pTransporter = new BitmapTransporter;
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REF( XInterface ) aIf( static_cast< OWeakObject* >( pTransporter ) );
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m_pHolder->m_xBitmap = REF( AWT::XBitmap )( aIf, UNO_QUERY );
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m_pHolder->m_bBusy = true;
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if( m_pHolder->m_aSane.IsOpen() )
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{
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int nOption = m_pHolder->m_aSane.GetOptionByName( "preview" );
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if( nOption != -1 )
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m_pHolder->m_aSane.SetOptionValue( nOption, (sal_Bool)sal_False );
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m_pHolder->m_nError =
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m_pHolder->m_aSane.Start( *pTransporter ) ?
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ScanError_ScanErrorNone : ScanError_ScanCanceled;
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}
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else
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m_pHolder->m_nError = ScanError_ScannerNotAvailable;
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REF( XInterface ) xXInterface( static_cast< OWeakObject* >( m_pManager ) );
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m_xListener->disposing( com::sun::star::lang::EventObject(xXInterface) );
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m_pHolder->m_bBusy = false;
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}
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// ------------------
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// - ScannerManager -
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// ------------------
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void ScannerManager::AcquireData()
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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theSanes::get().acquire();
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}
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void ScannerManager::ReleaseData()
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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theSanes::get().release();
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}
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// -----------------------------------------------------------------------------
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AWT::Size ScannerManager::getSize() throw()
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{
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AWT::Size aRet;
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aRet.Width = aRet.Height = 0;
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return aRet;
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}
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// -----------------------------------------------------------------------------
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SEQ( sal_Int8 ) ScannerManager::getDIB() throw()
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{
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return SEQ( sal_Int8 )();
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}
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// -----------------------------------------------------------------------------
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SEQ( ScannerContext ) ScannerManager::getAvailableScanners() throw()
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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sanevec &rSanes = theSanes::get().m_aSanes;
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if( rSanes.empty() )
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{
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boost::shared_ptr<SaneHolder> pSaneHolder(new SaneHolder);
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if( Sane::IsSane() )
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rSanes.push_back( pSaneHolder );
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}
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if( Sane::IsSane() )
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{
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SEQ( ScannerContext ) aRet(1);
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aRet.getArray()[0].ScannerName = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("SANE"));
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aRet.getArray()[0].InternalData = 0;
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return aRet;
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}
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return SEQ( ScannerContext )();
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}
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// -----------------------------------------------------------------------------
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sal_Bool ScannerManager::configureScannerAndScan( ScannerContext& scanner_context,
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const REF( com::sun::star::lang::XEventListener )& listener ) throw( ScannerException )
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{
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bool bRet;
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bool bScan;
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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sanevec &rSanes = theSanes::get().m_aSanes;
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "ScannerManager::configureScanner\n" );
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#endif
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if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner does not exist")),
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REF( XScannerManager )( this ),
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ScanError_InvalidContext
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);
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boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
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if( pHolder->m_bBusy )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner is busy")),
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REF( XScannerManager )( this ),
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ScanError_ScanInProgress
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);
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pHolder->m_bBusy = true;
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SaneDlg aDlg( NULL, pHolder->m_aSane, listener.is() );
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bRet = aDlg.Execute();
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bScan = aDlg.getDoScan();
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pHolder->m_bBusy = false;
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}
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if ( bScan )
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startScan( scanner_context, listener );
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return bRet;
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}
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// -----------------------------------------------------------------------------
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void ScannerManager::startScan( const ScannerContext& scanner_context,
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const REF( com::sun::star::lang::XEventListener )& listener ) throw( ScannerException )
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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sanevec &rSanes = theSanes::get().m_aSanes;
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "ScannerManager::startScan\n" );
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#endif
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if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner does not exist")),
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REF( XScannerManager )( this ),
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ScanError_InvalidContext
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);
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boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
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if( pHolder->m_bBusy )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner is busy")),
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REF( XScannerManager )( this ),
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ScanError_ScanInProgress
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);
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pHolder->m_bBusy = true;
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ScannerThread* pThread = new ScannerThread( pHolder, listener, this );
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pThread->create();
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}
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// -----------------------------------------------------------------------------
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ScanError ScannerManager::getError( const ScannerContext& scanner_context ) throw( ScannerException )
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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sanevec &rSanes = theSanes::get().m_aSanes;
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if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner does not exist")),
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REF( XScannerManager )( this ),
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ScanError_InvalidContext
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);
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boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
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return pHolder->m_nError;
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}
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// -----------------------------------------------------------------------------
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REF( AWT::XBitmap ) ScannerManager::getBitmap( const ScannerContext& scanner_context ) throw( ScannerException )
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{
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osl::MutexGuard aGuard( theSaneProtector::get() );
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sanevec &rSanes = theSanes::get().m_aSanes;
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if( scanner_context.InternalData < 0 || (sal_uLong)scanner_context.InternalData >= rSanes.size() )
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throw ScannerException(
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::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Scanner does not exist")),
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REF( XScannerManager )( this ),
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ScanError_InvalidContext
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);
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boost::shared_ptr<SaneHolder> pHolder = rSanes[scanner_context.InternalData];
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osl::MutexGuard aProtGuard( pHolder->m_aProtector );
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REF( AWT::XBitmap ) xRet( pHolder->m_xBitmap );
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pHolder->m_xBitmap = REF( AWT::XBitmap )();
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return xRet;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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