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1 | // Author: Kirill Gavrilov |
| 2 | // Copyright (c) 2017-2019 OPEN CASCADE SAS |
| 3 | // |
| 4 | // This file is part of Open CASCADE Technology software library. |
| 5 | // |
| 6 | // This library is free software; you can redistribute it and/or modify it under |
| 7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 8 | // by the Free Software Foundation, with special exception defined in the file |
| 9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 10 | // distribution for complete text of the license and disclaimer of any warranty. |
| 11 | // |
| 12 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 13 | // commercial license or contractual agreement. |
| 14 | |
| 15 | #ifndef _RWObj_Tools_HeaderFile |
| 16 | #define _RWObj_Tools_HeaderFile |
| 17 | |
| 18 | #include <gp_XYZ.hxx> |
| 19 | #include <Graphic3d_Vec3.hxx> |
| 20 | #include <TCollection_AsciiString.hxx> |
| 21 | |
| 22 | //! Auxiliary tools for OBJ format parser. |
| 23 | namespace RWObj_Tools |
| 24 | { |
| 25 | //! Read 3 float values. |
| 26 | inline bool ReadVec3 (const char* thePos, |
| 27 | char*& theNext, |
| 28 | Graphic3d_Vec3& theVec) |
| 29 | { |
| 30 | const char* aPos = thePos; |
| 31 | theVec.x() = (float )Strtod (aPos, &theNext); |
| 32 | aPos = theNext; |
| 33 | theVec.y() = (float )Strtod (aPos, &theNext); |
| 34 | aPos = theNext; |
| 35 | theVec.z() = (float )Strtod (aPos, &theNext); |
| 36 | return aPos != theNext; |
| 37 | } |
| 38 | |
| 39 | //! Read 3 double values. |
| 40 | inline bool ReadVec3 (const char* thePos, |
| 41 | char*& theNext, |
| 42 | gp_XYZ& theVec) |
| 43 | { |
| 44 | const char* aPos = thePos; |
| 45 | theVec.SetX (Strtod (aPos, &theNext)); |
| 46 | aPos = theNext; |
| 47 | theVec.SetY (Strtod (aPos, &theNext)); |
| 48 | aPos = theNext; |
| 49 | theVec.SetZ (Strtod (aPos, &theNext)); |
| 50 | return aPos != theNext; |
| 51 | } |
| 52 | |
| 53 | //! Read string. |
| 54 | inline bool ReadName (const char* thePos, |
| 55 | TCollection_AsciiString& theName) |
| 56 | { |
| 57 | Standard_Integer aFrom = 0; |
| 58 | Standard_Integer aTail = (Standard_Integer )std::strlen (thePos) - 1; |
| 59 | if (aTail >= 0 && thePos[aTail] == '\n') { --aTail; } |
| 60 | if (aTail >= 0 && thePos[aTail] == '\r') { --aTail; } |
| 61 | for (; aTail >= 0 && IsSpace (thePos[aTail]); --aTail) {} // RightAdjust |
| 62 | for (; aFrom < aTail && IsSpace (thePos[aFrom]); ++aFrom) {} // LeftAdjust |
| 63 | if (aFrom > aTail) |
| 64 | { |
| 65 | theName.Clear(); |
| 66 | return false; |
| 67 | } |
| 68 | theName = TCollection_AsciiString (thePos + aFrom, aTail - aFrom + 1); |
| 69 | return true; |
| 70 | } |
| 71 | |
| 72 | //! Return true if specified char is a white space. |
| 73 | inline bool isSpaceChar (const char theChar) |
| 74 | { |
| 75 | return theChar == ' ' |
| 76 | || theChar == '\t'; |
| 77 | //return IsSpace (theChar); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | #endif // _RWObj_Tools_HeaderFile |
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