xref: /aoo42x/main/vcl/source/gdi/cvtgrf.cxx (revision 9f62ea84)
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16  * KIND, either express or implied.  See the License for the
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_vcl.hxx"
26 
27 #include <vcl/metaact.hxx>
28 #include <vcl/cvtgrf.hxx>
29 
30 #include <salinst.hxx>
31 #include <svdata.hxx>
32 
33 // --------------
34 // - Callback	-
35 // --------------
36 
37 // --------------------
38 // - GraphicConverter -
39 // --------------------
40 
GraphicConverter()41 GraphicConverter::GraphicConverter() :
42 	mpConvertData( NULL )
43 {
44 }
45 
46 // ------------------------------------------------------------------------
47 
~GraphicConverter()48 GraphicConverter::~GraphicConverter()
49 {
50 }
51 
52 // ------------------------------------------------------------------------
53 
ImplConvert(sal_uLong nInFormat,void * pInBuffer,sal_uLong nInBufSize,void ** ppOutBuffer,sal_uLong nOutFormat)54 sal_uLong GraphicConverter::ImplConvert( sal_uLong nInFormat, void* pInBuffer, sal_uLong nInBufSize,
55 									 void** ppOutBuffer, sal_uLong nOutFormat )
56 {
57 	sal_uLong nRetBufSize = 0UL;
58 
59 	if( ( nInFormat != nOutFormat ) && pInBuffer )
60 	{
61 		if( ( nInFormat == CVT_SVM ) || ( nInFormat == CVT_BMP ) )
62 		{
63 			SvMemoryStream	aIStm;
64 			Graphic			aGraphic;
65 
66 			aIStm.SetBuffer( (char*) pInBuffer, nInBufSize, sal_False, nInBufSize );
67 			aIStm >> aGraphic;
68 
69 			if( !aIStm.GetError() )
70 			{
71 				SvMemoryStream aOStm( 64535, 64535 );
72 
73 				mpConvertData = new ConvertData( aGraphic, aOStm, nOutFormat );
74 
75 				if( maFilterHdl.IsSet() && maFilterHdl.Call( mpConvertData ) )
76 				{
77 					nRetBufSize = aOStm.Seek( STREAM_SEEK_TO_END );
78 					*ppOutBuffer = (void*) aOStm.GetData();
79 					aOStm.ObjectOwnsMemory( sal_False );
80 				}
81 
82 				delete mpConvertData;
83 				mpConvertData = NULL;
84 			}
85 		}
86 		else if( ( nOutFormat == CVT_SVM ) || ( nOutFormat == CVT_BMP ) )
87 		{
88 			SvMemoryStream	aIStm;
89 
90 			aIStm.SetBuffer( (char*) pInBuffer, nInBufSize, sal_False, nInBufSize );
91 			mpConvertData = new ConvertData( Graphic(), aIStm, nInFormat );
92 
93 			if( maFilterHdl.IsSet() && maFilterHdl.Call( mpConvertData ) )
94 			{
95 				SvMemoryStream	aOStm( 645535, 64535 );
96 				Graphic&		rGraphic = mpConvertData->maGraphic;
97 
98 				if( ( rGraphic.GetType() == GRAPHIC_BITMAP ) && ( CVT_SVM == nOutFormat ) )
99 				{
100 					GDIMetaFile aMtf;
101 
102 					aMtf.SetPrefSize( rGraphic.GetPrefSize() );
103 					aMtf.SetPrefMapMode( rGraphic.GetPrefMapMode() );
104 					aMtf.AddAction( new MetaBmpExScaleAction( Point(), aMtf.GetPrefSize(), rGraphic.GetBitmapEx() ) );
105 					rGraphic = aMtf;
106 				}
107 				else if( ( rGraphic.GetType() == GRAPHIC_GDIMETAFILE ) && ( CVT_BMP == nOutFormat ) )
108 					rGraphic = rGraphic.GetBitmapEx();
109 
110 				aOStm << rGraphic;
111 
112 				if( !aOStm.GetError() )
113 				{
114 					nRetBufSize = aOStm.Seek( STREAM_SEEK_TO_END );
115 					*ppOutBuffer = (void*) aOStm.GetData();
116 					aOStm.ObjectOwnsMemory( sal_False );
117 				}
118 			}
119 
120 			delete mpConvertData;
121 			mpConvertData = NULL;
122 		}
123 	}
124 
125 	return nRetBufSize;
126 }
127 
128 // ------------------------------------------------------------------------
129 
Import(SvStream & rIStm,Graphic & rGraphic,sal_uLong nFormat)130 sal_uLong GraphicConverter::Import( SvStream& rIStm, Graphic& rGraphic, sal_uLong nFormat )
131 {
132 	GraphicConverter*	pCvt = ImplGetSVData()->maGDIData.mpGrfConverter;
133 	sal_uLong				nRet = ERRCODE_IO_GENERAL;
134 
135 	if( pCvt && pCvt->GetFilterHdl().IsSet() )
136 	{
137 		ConvertData	aData( rGraphic, rIStm, nFormat );
138 
139 		if( pCvt->GetFilterHdl().Call( &aData ) )
140 		{
141 			rGraphic = aData.maGraphic;
142 			nRet = ERRCODE_NONE;
143 		}
144 		else if( rIStm.GetError() )
145 			nRet = rIStm.GetError();
146 	}
147 
148 	return nRet;
149 }
150 
151 // ------------------------------------------------------------------------
152 
Export(SvStream & rOStm,const Graphic & rGraphic,sal_uLong nFormat)153 sal_uLong GraphicConverter::Export( SvStream& rOStm, const Graphic& rGraphic, sal_uLong nFormat )
154 {
155 	GraphicConverter*	pCvt = ImplGetSVData()->maGDIData.mpGrfConverter;
156 	sal_uLong				nRet = ERRCODE_IO_GENERAL;
157 
158 	if( pCvt && pCvt->GetFilterHdl().IsSet() )
159 	{
160 		ConvertData	aData( rGraphic, rOStm, nFormat );
161 
162 		if( pCvt->GetFilterHdl().Call( &aData ) )
163 			nRet = ERRCODE_NONE;
164 		else if( rOStm.GetError() )
165 			nRet = rOStm.GetError();
166 	}
167 
168 	return nRet;
169 }
170