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 // MARKER(update_precomp.py): autogen include statement, do not remove 23 #include "precompiled_vcl.hxx" 24 25 #include "vcl/bitmap.hxx" 26 #include "vcl/svapp.hxx" 27 #include "vcl/salctype.hxx" 28 #include "vos/mutex.hxx" 29 #include "tools/stream.hxx" 30 #include "com/sun/star/script/XInvocation.hpp" 31 #include "com/sun/star/awt/XBitmap.hpp" 32 #include "cppuhelper/compbase1.hxx" 33 #include <vcl/dibtools.hxx> 34 35 using namespace com::sun::star::uno; 36 using namespace com::sun::star::script; 37 using namespace com::sun::star::beans; 38 using namespace com::sun::star::reflection; 39 using namespace com::sun::star::awt; 40 using namespace rtl; 41 42 namespace vcl { 43 44 class BmpTransporter : 45 public cppu::WeakImplHelper1< com::sun::star::awt::XBitmap > 46 { 47 Sequence<sal_Int8> m_aBM; 48 com::sun::star::awt::Size m_aSize; 49 public: 50 BmpTransporter( const Bitmap& rBM ); 51 virtual ~BmpTransporter(); 52 53 virtual com::sun::star::awt::Size SAL_CALL getSize() throw(); 54 virtual Sequence< sal_Int8 > SAL_CALL getDIB() throw(); 55 virtual Sequence< sal_Int8 > SAL_CALL getMaskDIB() throw(); 56 }; 57 58 class BmpConverter : 59 public cppu::WeakImplHelper1< com::sun::star::script::XInvocation > 60 { 61 public: 62 BmpConverter(); 63 virtual ~BmpConverter(); 64 65 virtual Reference< XIntrospectionAccess > SAL_CALL getIntrospection() throw(); 66 virtual void SAL_CALL setValue( const OUString& rProperty, const Any& rValue ) 67 throw( UnknownPropertyException ); 68 virtual Any SAL_CALL getValue( const OUString& rProperty ) 69 throw( UnknownPropertyException ); 70 virtual sal_Bool SAL_CALL hasMethod( const OUString& rName ) throw(); 71 virtual sal_Bool SAL_CALL hasProperty( const OUString& rProp ) throw(); 72 73 virtual Any SAL_CALL invoke( const OUString& rFunction, 74 const Sequence< Any >& rParams, 75 Sequence< sal_Int16 >& rOutParamIndex, 76 Sequence< Any >& rOutParam 77 ) 78 throw( CannotConvertException, InvocationTargetException ); 79 }; 80 81 } 82 83 using namespace vcl; 84 85 Reference< XInvocation > vcl::createBmpConverter() 86 { 87 return static_cast<XInvocation*>(new BmpConverter()); 88 } 89 90 BmpConverter::BmpConverter() 91 { 92 } 93 94 BmpConverter::~BmpConverter() 95 { 96 } 97 98 Reference< XIntrospectionAccess > SAL_CALL BmpConverter::getIntrospection() throw() 99 { 100 return Reference< XIntrospectionAccess >(); 101 } 102 103 void SAL_CALL BmpConverter::setValue( const OUString&, const Any& ) throw( UnknownPropertyException ) 104 { 105 throw UnknownPropertyException(); 106 } 107 108 Any SAL_CALL BmpConverter::getValue( const OUString& ) throw( UnknownPropertyException ) 109 { 110 throw UnknownPropertyException(); 111 } 112 113 sal_Bool SAL_CALL BmpConverter::hasMethod( const OUString& rName ) throw() 114 { 115 return rName.equalsIgnoreAsciiCase( OUString::createFromAscii( "convert-bitmap-depth" ) ); 116 } 117 118 sal_Bool SAL_CALL BmpConverter::hasProperty( const OUString& ) throw() 119 { 120 return sal_False; 121 } 122 123 Any SAL_CALL BmpConverter::invoke( 124 const OUString& rFunction, 125 const Sequence< Any >& rParams, 126 Sequence< sal_Int16 >&, 127 Sequence< Any >& ) 128 throw( CannotConvertException, InvocationTargetException ) 129 { 130 Any aRet; 131 132 if( rFunction.equalsIgnoreAsciiCase( OUString::createFromAscii( "convert-bitmap-depth" ) ) ) 133 { 134 Reference< XBitmap > xBM; 135 sal_uInt16 nTargetDepth = 0; 136 if( rParams.getLength() != 2 ) 137 throw CannotConvertException(); 138 139 if( ! (rParams.getConstArray()[0] >>= xBM ) || 140 ! ( rParams.getConstArray()[1] >>= nTargetDepth ) ) 141 throw CannotConvertException(); 142 143 Sequence< sal_Int8 > aDIB = xBM->getDIB(); 144 145 // call into vcl not thread safe 146 vos::OGuard aGuard( Application::GetSolarMutex() ); 147 148 SvMemoryStream aStream( aDIB.getArray(), aDIB.getLength(), STREAM_READ | STREAM_WRITE ); 149 Bitmap aBM; 150 151 ReadDIB(aBM, aStream, true); 152 153 if( nTargetDepth < 4 ) 154 nTargetDepth = 1; 155 else if( nTargetDepth < 8 ) 156 nTargetDepth = 4; 157 else if( nTargetDepth >8 && nTargetDepth < 24 ) 158 nTargetDepth = 24; 159 160 if( aBM.GetBitCount() == 24 && nTargetDepth <= 8 ) 161 aBM.Dither( BMP_DITHER_FLOYD ); 162 163 if( aBM.GetBitCount() != nTargetDepth ) 164 { 165 switch( nTargetDepth ) 166 { 167 case 1: aBM.Convert( BMP_CONVERSION_1BIT_THRESHOLD );break; 168 case 4: aBM.ReduceColors( BMP_CONVERSION_4BIT_COLORS );break; 169 case 8: aBM.ReduceColors( BMP_CONVERSION_8BIT_COLORS );break; 170 case 24: aBM.Convert( BMP_CONVERSION_24BIT );break; 171 } 172 } 173 xBM = new BmpTransporter( aBM ); 174 aRet <<= xBM; 175 } 176 else 177 throw InvocationTargetException(); 178 179 return aRet; 180 } 181 182 BmpTransporter::BmpTransporter( const Bitmap& rBM ) 183 { 184 m_aSize.Width = rBM.GetSizePixel().Width(); 185 m_aSize.Height = rBM.GetSizePixel().Height(); 186 187 SvMemoryStream aStream; 188 189 WriteDIB(rBM, aStream, false, true); 190 191 m_aBM = Sequence<sal_Int8>(static_cast<const sal_Int8*>(aStream.GetData()), 192 aStream.GetEndOfData()); 193 } 194 195 BmpTransporter::~BmpTransporter() 196 { 197 } 198 199 com::sun::star::awt::Size SAL_CALL BmpTransporter::getSize() throw() 200 { 201 return m_aSize; 202 } 203 204 Sequence< sal_Int8 > SAL_CALL BmpTransporter::getDIB() throw() 205 { 206 return m_aBM; 207 } 208 209 Sequence< sal_Int8 > SAL_CALL BmpTransporter::getMaskDIB() throw() 210 { 211 return Sequence< sal_Int8 >(); 212 } 213