1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_svx.hxx" 26 #include <com/sun/star/document/EventObject.hpp> 27 28 #include "svx/unoshcol.hxx" 29 #include <svx/unoprov.hxx> 30 #include <comphelper/serviceinfohelper.hxx> 31 32 using namespace ::cppu; 33 using namespace ::com::sun::star; 34 using namespace ::com::sun::star::uno; 35 using namespace ::com::sun::star::lang; 36 using namespace ::com::sun::star::container; 37 using namespace ::com::sun::star::drawing; 38 39 /*********************************************************************** 40 * * 41 ***********************************************************************/ 42 SvxShapeCollection::SvxShapeCollection() throw() 43 : maShapeContainer( maMutex ), mrBHelper( maMutex ) 44 { 45 } 46 47 //---------------------------------------------------------------------- 48 SvxShapeCollection::~SvxShapeCollection() throw() 49 { 50 } 51 52 53 //---------------------------------------------------------------------- 54 Reference< uno::XInterface > SvxShapeCollection_NewInstance() throw() 55 { 56 Reference< drawing::XShapes > xShapes( new SvxShapeCollection() ); 57 Reference< uno::XInterface > xRef( xShapes, UNO_QUERY ); 58 return xRef; 59 } 60 61 // XInterface 62 void SvxShapeCollection::release() throw() 63 { 64 uno::Reference< uno::XInterface > x( xDelegator ); 65 if (! x.is()) 66 { 67 if (osl_decrementInterlockedCount( &m_refCount ) == 0) 68 { 69 if (! mrBHelper.bDisposed) 70 { 71 uno::Reference< uno::XInterface > xHoldAlive( (uno::XWeak*)this ); 72 // First dispose 73 try 74 { 75 dispose(); 76 } 77 catch(::com::sun::star::uno::Exception&) 78 { 79 // release should not throw exceptions 80 } 81 82 // only the alive ref holds the object 83 OSL_ASSERT( m_refCount == 1 ); 84 // destroy the object if xHoldAlive decrement the refcount to 0 85 return; 86 } 87 } 88 // restore the reference count 89 osl_incrementInterlockedCount( &m_refCount ); 90 } 91 OWeakAggObject::release(); 92 } 93 94 // XComponent 95 void SvxShapeCollection::disposing() throw() 96 { 97 maShapeContainer.clear(); 98 } 99 100 // XComponent 101 void SvxShapeCollection::dispose() 102 throw(::com::sun::star::uno::RuntimeException) 103 { 104 // An frequently programming error is to release the last 105 // reference to this object in the disposing message. 106 // Make it rubust, hold a self Reference. 107 uno::Reference< lang::XComponent > xSelf( this ); 108 109 // Guard dispose against multible threading 110 // Remark: It is an error to call dispose more than once 111 sal_Bool bDoDispose = sal_False; 112 { 113 osl::MutexGuard aGuard( mrBHelper.rMutex ); 114 if( !mrBHelper.bDisposed && !mrBHelper.bInDispose ) 115 { 116 // only one call go into this section 117 mrBHelper.bInDispose = sal_True; 118 bDoDispose = sal_True; 119 } 120 } 121 122 // Do not hold the mutex because we are broadcasting 123 if( bDoDispose ) 124 { 125 // Create an event with this as sender 126 try 127 { 128 uno::Reference< uno::XInterface > xSource( uno::Reference< uno::XInterface >::query( (lang::XComponent *)this ) ); 129 document::EventObject aEvt; 130 aEvt.Source = xSource; 131 // inform all listeners to release this object 132 // The listener container are automaticly cleared 133 mrBHelper.aLC.disposeAndClear( aEvt ); 134 // notify subclasses to do their dispose 135 disposing(); 136 } 137 catch(::com::sun::star::uno::Exception& e) 138 { 139 // catch exception and throw again but signal that 140 // the object was disposed. Dispose should be called 141 // only once. 142 mrBHelper.bDisposed = sal_True; 143 mrBHelper.bInDispose = sal_False; 144 throw e; 145 } 146 147 // the values bDispose and bInDisposing must set in this order. 148 // No multithread call overcome the "!rBHelper.bDisposed && !rBHelper.bInDispose" guard. 149 mrBHelper.bDisposed = sal_True; 150 mrBHelper.bInDispose = sal_False; 151 } 152 else 153 { 154 // in a multithreaded environment, it can't be avoided, that dispose is called twice. 155 // However this condition is traced, because it MAY indicate an error. 156 OSL_TRACE( "OComponentHelper::dispose() - dispose called twice" ); 157 } 158 } 159 160 // XComponent 161 void SAL_CALL SvxShapeCollection::addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw(::com::sun::star::uno::RuntimeException) 162 { 163 mrBHelper.addListener( ::getCppuType( &aListener ) , aListener ); 164 } 165 166 // XComponent 167 void SAL_CALL SvxShapeCollection::removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw(::com::sun::star::uno::RuntimeException) 168 { 169 mrBHelper.removeListener( ::getCppuType( &aListener ) , aListener ); 170 } 171 172 // XShapes 173 //---------------------------------------------------------------------- 174 void SAL_CALL SvxShapeCollection::add( const Reference< drawing::XShape >& xShape ) throw( uno::RuntimeException ) 175 { 176 maShapeContainer.addInterface( xShape ); 177 } 178 179 //---------------------------------------------------------------------- 180 void SAL_CALL SvxShapeCollection::remove( const uno::Reference< drawing::XShape >& xShape ) throw( uno::RuntimeException ) 181 { 182 maShapeContainer.removeInterface( xShape ); 183 } 184 185 //---------------------------------------------------------------------- 186 sal_Int32 SAL_CALL SvxShapeCollection::getCount() throw( uno::RuntimeException ) 187 { 188 return maShapeContainer.getLength(); 189 } 190 191 //---------------------------------------------------------------------- 192 uno::Any SAL_CALL SvxShapeCollection::getByIndex( sal_Int32 Index ) 193 throw( lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException ) 194 { 195 if( Index < 0 || Index >= getCount() ) 196 throw lang::IndexOutOfBoundsException(); 197 198 uno::Sequence< Reference< uno::XInterface> > xElements( maShapeContainer.getElements() ); 199 200 201 return uno::makeAny( Reference< XShape>(static_cast< drawing::XShape* >( xElements.getArray()[Index].get())) ); 202 } 203 204 // XElementAccess 205 206 //---------------------------------------------------------------------- 207 uno::Type SAL_CALL SvxShapeCollection::getElementType() throw( uno::RuntimeException ) 208 { 209 return ::getCppuType(( const Reference< drawing::XShape >*)0); 210 } 211 212 //---------------------------------------------------------------------- 213 sal_Bool SAL_CALL SvxShapeCollection::hasElements() throw( uno::RuntimeException ) 214 { 215 return getCount() != 0; 216 } 217 218 //---------------------------------------------------------------------- 219 // XServiceInfo 220 //---------------------------------------------------------------------- 221 ::rtl::OUString SAL_CALL SvxShapeCollection::getImplementationName() 222 throw( uno::RuntimeException ) 223 { 224 return getImplementationName_Static(); 225 } 226 227 ::rtl::OUString SvxShapeCollection::getImplementationName_Static() 228 { 229 return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.SvxShapeCollection") ); 230 } 231 232 sal_Bool SAL_CALL SvxShapeCollection::supportsService( const ::rtl::OUString& ServiceName ) 233 throw( uno::RuntimeException ) 234 { 235 return comphelper::ServiceInfoHelper::supportsService( ServiceName, getSupportedServiceNames() ); 236 } 237 238 uno::Sequence< ::rtl::OUString > SAL_CALL SvxShapeCollection::getSupportedServiceNames() throw( uno::RuntimeException ) 239 { 240 return getSupportedServiceNames_Static(); 241 } 242 243 uno::Sequence< ::rtl::OUString > SvxShapeCollection::getSupportedServiceNames_Static() 244 { 245 uno::Sequence< ::rtl::OUString > aSeq(2); 246 aSeq.getArray()[1] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.Shapes") ); 247 aSeq.getArray()[1] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.ShapeCollection") ); 248 return aSeq; 249 } 250 251 Reference< XInterface > SAL_CALL SvxShapeCollection_createInstance( const Reference< ::com::sun::star::lang::XMultiServiceFactory >& ) 252 { 253 return *( new SvxShapeCollection() ); 254 } 255