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Diffstat (limited to 'src/lib/PictXParser.cpp')
| -rw-r--r-- | src/lib/PictXParser.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/lib/PictXParser.cpp b/src/lib/PictXParser.cpp new file mode 100644 index 0000000..0609cb9 --- /dev/null +++ b/src/lib/PictXParser.cpp @@ -0,0 +1,164 @@ +/* libpict + * Copyright (C) 2006 Ariya Hidayat (ariya@kde.org) + * Copyright (C) 2004 Marc Oude Kotte (marc@solcon.nl) + * Copyright (C) 2005 Fridrich Strba (fridrich.strba@bluewin.ch) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02111-1301 USA + * + * For further information visit http://libpict.sourceforge.net + */ + +/* "This product is not manufactured, approved, or supported by + * Corel Corporation or Corel Corporation Limited." + */ + +#include "PictXParser.h" +#include "libpict_utils.h" + +PictXParser::PictXParser(WPXInputStream *input, libwpg::WPGPaintInterface* painter): + m_input(input), m_painter(painter), m_colorPalette(std::map<int,libpict::PictColor>()) +{ +} + +PictXParser::PictXParser(const PictXParser& parser): + m_input(parser.m_input), m_painter(parser.m_painter), + m_colorPalette(parser.m_colorPalette) +{ +} + +unsigned char PictXParser::readU8() +{ + if (!m_input || m_input->atEOS()) + return (unsigned char)0; + unsigned long numBytesRead; + unsigned char const * p = m_input->read(sizeof(unsigned char), numBytesRead); + + if (p && numBytesRead == 1) + return *(unsigned char const *)(p); + return (unsigned char)0; +} + +unsigned short PictXParser::readU16() +{ + unsigned short p0 = (unsigned short)readU8(); + unsigned short p1 = (unsigned short)readU8(); + return (unsigned short)(p0|(p1<<8)); +} + +unsigned int PictXParser::readU32() +{ + unsigned int p0 = (unsigned int)readU8(); + unsigned int p1 = (unsigned int)readU8(); + unsigned int p2 = (unsigned int)readU8(); + unsigned int p3 = (unsigned int)readU8(); + return (unsigned long)(p0|(p1<<8)|(p2<<16)|(p3<<24)); +} + +short PictXParser::readS16() +{ + return (short)readU16(); +} + +int PictXParser::readS32() +{ + return (int)readU32(); +} + +unsigned int PictXParser::readVariableLengthInteger() +{ + // read a byte + unsigned char value8 = readU8(); + // if it's in the range 0-0xFE, then we have a 8-bit value + if (value8<=0xFE) { + return (unsigned int)value8; + } else { + // now read a 16 bit value + unsigned short value16 = readU16(); + // if the MSB is 1, we have a 32 bit value + if (value16>>15) { + // read the next 16 bit value (LSB part, in value16 resides the MSB part) + unsigned long lvalue16 = readU16(); + unsigned long value32 = value16 & 0x7fff; // mask out the MSB + return (value32<<16)+lvalue16; + } else { + // we have a 16 bit value, return it + return (unsigned int)value16; + } + } +} + +PictXParser& PictXParser::operator=(const PictXParser& parser) +{ + m_input = parser.m_input; + m_painter = parser.m_painter; + m_colorPalette = parser.m_colorPalette; + return *this; +} + +void PictTextDataHandler::endSubDocument() +{ + Pict_DEBUG_MSG(("PictTextDataHandler::endSubDocument\n")); +} + +void PictTextDataHandler::openParagraph(const WPXPropertyList &propList, const WPXPropertyListVector & /* tabStops */) +{ + m_painter->startTextLine(propList); +} + +void PictTextDataHandler::closeParagraph() +{ + m_painter->endTextLine(); +} + +void PictTextDataHandler::openSpan(const WPXPropertyList &propList) +{ + m_painter->startTextSpan(propList); +} + +void PictTextDataHandler::closeSpan() +{ + m_painter->endTextSpan(); +} + +void PictTextDataHandler::insertTab() +{ + Pict_DEBUG_MSG(("PictTextDataHandler::insertTab\n")); +} + +void PictTextDataHandler::insertSpace() +{ + m_painter->insertText(" "); +} + +void PictTextDataHandler::insertText(const WPXString &text) +{ + m_painter->insertText(text); +} + +void PictTextDataHandler::insertLineBreak() +{ + Pict_DEBUG_MSG(("PictTextDataHandler::insertLineBreak\n")); +} + +void PictTextDataHandler::openListElement(const WPXPropertyList & propList, const WPXPropertyListVector &/*tabStops*/) +{ + m_painter->startTextLine(propList); +} + +void PictTextDataHandler::closeListElement() +{ + Pict_DEBUG_MSG(("PictTextDataHandler::closeListElement\n")); +} |