// $Id: cxftrans.cpp 1282 2006-06-09 09:46:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ /******************************************************************************************** > cxftrans.cpp Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Purpose: Code for importing and exporting transformation attributes to and from the new native file format. ********************************************************************************************/ #include "camtypes.h" /* //#include "matrix.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "cxftags.h" //#include "cxfdefs.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "camfiltr.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "cxftrans.h" */ /******************************************************************************************** > BOOL CXaraFileTransforms::Write(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - Filter to save the record to pMatrix - Matrix to save Returns: BOOL indicating success or not. Purpose: Writes a transformation attribute to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::Write(BaseCamelotFilter * pFilter, Matrix * pMatrix) { // check the arguments ERROR2IF(pFilter == NULL, FALSE, "NULL filter pointer passed as argument."); ERROR2IF(pMatrix == NULL, FALSE, "NULL matrix pointer passed as argument."); BOOL Result; // !!ACH!! // here we just switch on the transform type of the matrix, and assume it gets set // properly by whoever created it. What we ought to do is decompose the matrix and // decide whcih of the many transform attribute records we ought to output. // This works for the moment, but needs changing. switch (pMatrix->Type) { case TRANS_IDENTITY : Result = WriteIdentity(pFilter, pMatrix); break; case TRANS_TRANSLATION : Result = WriteTranslation(pFilter, pMatrix); break; case TRANS_ROTATION : Result = WriteRotation(pFilter, pMatrix); break; case TRANS_SCALE : Result = WriteScale(pFilter, pMatrix); break; case TRANS_SHEAR : Result = WriteShearX(pFilter, pMatrix); break; case TRANS_COMPLEX : Result = WriteGeneral(pFilter, pMatrix); break; default : Result = WriteGeneral(pFilter, pMatrix); break; } return Result; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteIdentity(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save Returns: Bool indicating success Purpose: Writes an identity transform attribute record to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteIdentity(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; CXaraFileRecord Rec(TAG_TRANSFORM_IDENTITY, TAG_TRANSFORM_IDENTITY_SIZE); ok = Rec.Init(); if (ok) ok = pFilter->Write(&Rec); return ok; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteTranslation(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save Returns: boolean value indicating success Purpose: Writes a translation transform attribute to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteTranslation(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; INT32 XTrans, YTrans; CXaraFileRecord Rec(TAG_TRANSFORM_TRANSLATION, TAG_TRANSFORM_TRANSLATION_SIZE); ok = Rec.Init(); pMatrix->GetTranslation(XTrans, YTrans); if (ok) ok = Rec.Write(XTrans); if (ok) ok = Rec.Write(YTrans); if (ok) ok = pFilter->Write(&Rec); return ok; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteRotation(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save Returns: boolean value indicating success Purpose: Writes a rotation transform attribute to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteRotation(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; ANGLE Rotation; CXaraFileRecord Rec(TAG_TRANSFORM_ROTATION, TAG_TRANSFORM_ROTATION_SIZE); ok = Rec.Init(); if (ok) ok = pMatrix->Decompose(NULL, NULL, &Rotation, NULL, NULL); if (ok) ok = Rec.Write( (FLOAT) Rotation.MakeDouble() ); if (ok) ok = pFilter->Write(&Rec); return ok; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteScale(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save Returns: boolean value indicating success Purpose: Writes a scaling transform attribute to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteScale(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; FIXED16 Scale; CXaraFileRecord Rec(TAG_TRANSFORM_SCALE, TAG_TRANSFORM_SCALE_SIZE); ok = Rec.Init(); if (ok) ok = pMatrix->Decompose(&Scale, NULL, NULL, NULL, NULL); if (ok) ok = Rec.Write( (FLOAT) Scale.MakeDouble() ); if (ok) ok = pFilter->Write(&Rec); return ok; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteShearX(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save Returns: boolean indicating success Purpose: Writes a shear parallel to the X axis to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteShearX(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; ANGLE Shear; CXaraFileRecord Rec(TAG_TRANSFORM_SHEAR_X, TAG_TRANSFORM_SHEAR_X_SIZE); ok = Rec.Init(); if (ok) ok = pMatrix->Decompose(NULL, NULL, NULL, &Shear, NULL); if (ok) ok = Rec.Write( (FLOAT) Shear.MakeDouble() ); if (ok) ok = pFilter->Write(&Rec); return ok; } */ /******************************************************************************************** > BOOL CXaraFileTransforms::WriteGeneral(BaseCamelotFilter * pFilter, Matrix * pMatrix) Author: Andy_Hayward (Xara Group Ltd) Created: 03/06/96 Inputs: pFilter - filter to use pMatrix - matrix to save out Returns: boolean value indicating success Purpose: writes a general transformation matrix to the filter ********************************************************************************************/ /* BOOL CXaraFileTransforms::WriteGeneral(BaseCamelotFilter * pFilter, Matrix * pMatrix) { BOOL ok; FIXED16 abcd[4]; INT32 ef[2]; pMatrix->GetComponents(&abcd[0], &ef[0]); CXaraFileRecord Rec(TAG_TRANSFORM_GENERAL, TAG_TRANSFORM_GENERAL_SIZE); ok = Rec.Init(); if (ok) ok = Rec.Write( (FLOAT) abcd[0].MakeDouble() ); if (ok) ok = Rec.Write( (FLOAT) abcd[1].MakeDouble() ); if (ok) ok = Rec.Write( (FLOAT) abcd[2].MakeDouble() ); if (ok) ok = Rec.Write( (FLOAT) abcd[3].MakeDouble() ); if (ok) ok = Rec.Write( ef[0] ); if (ok) ok = Rec.Write( ef[1] ); if (ok) ok = pFilter->Write(&Rec); return ok; } */