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Diffstat (limited to 'basegfx/source/tools/stringconversiontools.cxx')
| -rw-r--r-- | basegfx/source/tools/stringconversiontools.cxx | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/basegfx/source/tools/stringconversiontools.cxx b/basegfx/source/tools/stringconversiontools.cxx new file mode 100644 index 000000000000..bc5cfb240745 --- /dev/null +++ b/basegfx/source/tools/stringconversiontools.cxx @@ -0,0 +1,169 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <stringconversiontools.hxx> +#include <rtl/math.hxx> + +namespace basegfx +{ + namespace internal + { + void lcl_skipSpaces(sal_Int32& io_rPos, + const OUString& rStr, + const sal_Int32 nLen) + { + while( io_rPos < nLen && + sal_Unicode(' ') == rStr[io_rPos] ) + { + ++io_rPos; + } + } + + void lcl_skipSpacesAndCommas(sal_Int32& io_rPos, + const OUString& rStr, + const sal_Int32 nLen) + { + while(io_rPos < nLen + && (sal_Unicode(' ') == rStr[io_rPos] || sal_Unicode(',') == rStr[io_rPos])) + { + ++io_rPos; + } + } + + bool lcl_getDoubleChar(double& o_fRetval, + sal_Int32& io_rPos, + const OUString& rStr) + { + sal_Unicode aChar( rStr[io_rPos] ); + OUStringBuffer sNumberString; + bool separator_seen=false; + + if(sal_Unicode('+') == aChar || sal_Unicode('-') == aChar) + { + sNumberString.append(rStr[io_rPos]); + aChar = rStr[++io_rPos]; + } + + while((sal_Unicode('0') <= aChar && sal_Unicode('9') >= aChar) + || (!separator_seen && sal_Unicode('.') == aChar)) + { + if (sal_Unicode('.') == aChar) separator_seen = true; + sNumberString.append(rStr[io_rPos]); + io_rPos++; + aChar = io_rPos < rStr.getLength() ? rStr[io_rPos] : 0; + } + + if(sal_Unicode('e') == aChar || sal_Unicode('E') == aChar) + { + sNumberString.append(rStr[io_rPos]); + io_rPos++; + aChar = io_rPos < rStr.getLength() ? rStr[io_rPos] : 0; + + if(sal_Unicode('+') == aChar || sal_Unicode('-') == aChar) + { + sNumberString.append(rStr[io_rPos]); + io_rPos++; + aChar = io_rPos < rStr.getLength() ? rStr[io_rPos] : 0; + } + + while(sal_Unicode('0') <= aChar && sal_Unicode('9') >= aChar) + { + sNumberString.append(rStr[io_rPos]); + io_rPos++; + aChar = io_rPos < rStr.getLength() ? rStr[io_rPos] : 0; + } + } + + if(sNumberString.getLength()) + { + rtl_math_ConversionStatus eStatus; + o_fRetval = ::rtl::math::stringToDouble( sNumberString.makeStringAndClear(), + (sal_Unicode)('.'), + (sal_Unicode)(','), + &eStatus, + NULL ); + return ( eStatus == rtl_math_ConversionStatus_Ok ); + } + + return false; + } + + bool lcl_importDoubleAndSpaces( double& o_fRetval, + sal_Int32& io_rPos, + const OUString& rStr, + const sal_Int32 nLen ) + { + if( !lcl_getDoubleChar(o_fRetval, io_rPos, rStr) ) + return false; + + lcl_skipSpacesAndCommas(io_rPos, rStr, nLen); + + return true; + } + + bool lcl_importFlagAndSpaces(sal_Int32& o_nRetval, + sal_Int32& io_rPos, + const OUString& rStr, + const sal_Int32 nLen) + { + sal_Unicode aChar( rStr[io_rPos] ); + + if(sal_Unicode('0') == aChar) + { + o_nRetval = 0; + ++io_rPos; + } + else if (sal_Unicode('1') == aChar) + { + o_nRetval = 1; + ++io_rPos; + } + else + return false; + + lcl_skipSpacesAndCommas(io_rPos, rStr, nLen); + + return true; + } + + void lcl_putNumberCharWithSpace( OUStringBuffer& rStr, + double fValue, + double fOldValue, + bool bUseRelativeCoordinates ) + { + if( bUseRelativeCoordinates ) + fValue -= fOldValue; + + const sal_Int32 aLen( rStr.getLength() ); + if(aLen) + { + if( lcl_isOnNumberChar(rStr[aLen - 1], false) && + fValue >= 0.0 ) + { + rStr.append( sal_Unicode(' ') ); + } + } + + lcl_putNumberChar(rStr, fValue); + } + + } // namespace internal +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |