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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/io/stream/inkscapestream.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/io/stream/inkscapestream.cpp | 800 |
1 files changed, 800 insertions, 0 deletions
diff --git a/src/io/stream/inkscapestream.cpp b/src/io/stream/inkscapestream.cpp new file mode 100644 index 0000000..bc6dc1d --- /dev/null +++ b/src/io/stream/inkscapestream.cpp @@ -0,0 +1,800 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Our base input/output stream classes. These are is directly + * inherited from iostreams, and includes any extra + * functionality that we might need. + * + * Authors: + * Bob Jamison <rjamison@titan.com> + * + * Copyright (C) 2004 Inkscape.org + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include <cstdlib> +#include "inkscapestream.h" + +namespace Inkscape +{ +namespace IO +{ + +//######################################################################### +//# U T I L I T Y +//######################################################################### + +void pipeStream(InputStream &source, OutputStream &dest) +{ + for (;;) + { + int ch = source.get(); + if (ch<0) + break; + dest.put(ch); + } + dest.flush(); +} + +//######################################################################### +//# B A S I C I N P U T S T R E A M +//######################################################################### + + +/** + * + */ +BasicInputStream::BasicInputStream(InputStream &sourceStream) + : source(sourceStream) +{ + closed = false; +} + +/** + * Returns the number of bytes that can be read (or skipped over) from + * this input stream without blocking by the next caller of a method for + * this input stream. + */ +int BasicInputStream::available() +{ + if (closed) + return 0; + return source.available(); +} + + +/** + * Closes this input stream and releases any system resources + * associated with the stream. + */ +void BasicInputStream::close() +{ + if (closed) + return; + source.close(); + closed = true; +} + +/** + * Reads the next byte of data from the input stream. -1 if EOF + */ +int BasicInputStream::get() +{ + if (closed) + return -1; + return source.get(); +} + + + +//######################################################################### +//# B A S I C O U T P U T S T R E A M +//######################################################################### + +/** + * + */ +BasicOutputStream::BasicOutputStream(OutputStream &destinationStream) + : destination(destinationStream) +{ + closed = false; +} + +/** + * Closes this output stream and releases any system resources + * associated with this stream. + */ +void BasicOutputStream::close() +{ + if (closed) + return; + destination.close(); + closed = true; +} + +/** + * Flushes this output stream and forces any buffered output + * bytes to be written out. + */ +void BasicOutputStream::flush() +{ + if (closed) + return; + destination.flush(); +} + +/** + * Writes the specified byte to this output stream. + */ +int BasicOutputStream::put(char ch) +{ + if (closed) + return -1; + destination.put(ch); + return 1; +} + + + +//######################################################################### +//# B A S I C R E A D E R +//######################################################################### +/** + * + */ +BasicReader::BasicReader(Reader &sourceReader) +{ + source = &sourceReader; +} + +/** + * Returns the number of bytes that can be read (or skipped over) from + * this reader without blocking by the next caller of a method for + * this reader. + */ +int BasicReader::available() +{ + if (source) + return source->available(); + else + return 0; +} + + +/** + * Closes this reader and releases any system resources + * associated with the reader. + */ +void BasicReader::close() +{ + if (source) + source->close(); +} + +/** + * Reads the next byte of data from the reader. + */ +char BasicReader::get() +{ + if (source) + return source->get(); + else + return (char)-1; +} + + +/** + * Reads a line of data from the reader. + */ +Glib::ustring BasicReader::readLine() +{ + Glib::ustring str; + while (available() > 0) + { + char ch = get(); + if (ch == '\n') + break; + str.push_back(ch); + } + return str; +} + +/** + * Reads a line of data from the reader. + */ +Glib::ustring BasicReader::readWord() +{ + Glib::ustring str; + while (available() > 0) + { + char ch = get(); + if (!std::isprint(ch)) + break; + str.push_back(ch); + } + return str; +} + + +static bool getLong(Glib::ustring &str, long *val) +{ + const char *begin = str.raw().c_str(); + char *end; + long ival = strtol(begin, &end, 10); + if (str == end) + return false; + *val = ival; + return true; +} + +static bool getULong(Glib::ustring &str, unsigned long *val) +{ + const char *begin = str.raw().c_str(); + char *end; + unsigned long ival = strtoul(begin, &end, 10); + if (str == end) + return false; + *val = ival; + return true; +} + +static bool getDouble(Glib::ustring &str, double *val) +{ + const char *begin = str.raw().c_str(); + char *end; + double ival = strtod(begin, &end); + if (str == end) + return false; + *val = ival; + return true; +} + + + +const Reader &BasicReader::readBool (bool& val ) +{ + Glib::ustring buf = readWord(); + if (buf == "true") + val = true; + else + val = false; + return *this; +} + +const Reader &BasicReader::readShort (short& val ) +{ + Glib::ustring buf = readWord(); + long ival; + if (getLong(buf, &ival)) + val = (short) ival; + return *this; +} + +const Reader &BasicReader::readUnsignedShort (unsigned short& val ) +{ + Glib::ustring buf = readWord(); + unsigned long ival; + if (getULong(buf, &ival)) + val = (unsigned short) ival; + return *this; +} + +const Reader &BasicReader::readInt (int& val ) +{ + Glib::ustring buf = readWord(); + long ival; + if (getLong(buf, &ival)) + val = (int) ival; + return *this; +} + +const Reader &BasicReader::readUnsignedInt (unsigned int& val ) +{ + Glib::ustring buf = readWord(); + unsigned long ival; + if (getULong(buf, &ival)) + val = (unsigned int) ival; + return *this; +} + +const Reader &BasicReader::readLong (long& val ) +{ + Glib::ustring buf = readWord(); + long ival; + if (getLong(buf, &ival)) + val = ival; + return *this; +} + +const Reader &BasicReader::readUnsignedLong (unsigned long& val ) +{ + Glib::ustring buf = readWord(); + unsigned long ival; + if (getULong(buf, &ival)) + val = ival; + return *this; +} + +const Reader &BasicReader::readFloat (float& val ) +{ + Glib::ustring buf = readWord(); + double ival; + if (getDouble(buf, &ival)) + val = (float)ival; + return *this; +} + +const Reader &BasicReader::readDouble (double& val ) +{ + Glib::ustring buf = readWord(); + double ival; + if (getDouble(buf, &ival)) + val = ival; + return *this; +} + + + +//######################################################################### +//# I N P U T S T R E A M R E A D E R +//######################################################################### + + +InputStreamReader::InputStreamReader(InputStream &inputStreamSource) + : inputStream(inputStreamSource) +{ +} + + + +/** + * Close the underlying OutputStream + */ +void InputStreamReader::close() +{ + inputStream.close(); +} + +/** + * Flush the underlying OutputStream + */ +int InputStreamReader::available() +{ + return inputStream.available(); +} + +/** + * Overloaded to receive its bytes from an InputStream + * rather than a Reader + */ +char InputStreamReader::get() +{ + char ch = inputStream.get(); + return ch; +} + + + +//######################################################################### +//# S T D R E A D E R +//######################################################################### + + +/** + * + */ +StdReader::StdReader() +{ + inputStream = new StdInputStream(); +} + +/** + * + */ +StdReader::~StdReader() +{ + delete inputStream; +} + + + +/** + * Close the underlying OutputStream + */ +void StdReader::close() +{ + inputStream->close(); +} + +/** + * Flush the underlying OutputStream + */ +int StdReader::available() +{ + return inputStream->available(); +} + +/** + * Overloaded to receive its bytes from an InputStream + * rather than a Reader + */ +char StdReader::get() +{ + char ch = inputStream->get(); + return ch; +} + + + + + +//######################################################################### +//# B A S I C W R I T E R +//######################################################################### + +/** + * + */ +BasicWriter::BasicWriter(Writer &destinationWriter) +{ + destination = &destinationWriter; +} + +/** + * Closes this writer and releases any system resources + * associated with this writer. + */ +void BasicWriter::close() +{ + if (destination) + destination->close(); +} + +/** + * Flushes this output stream and forces any buffered output + * bytes to be written out. + */ +void BasicWriter::flush() +{ + if (destination) + destination->flush(); +} + +/** + * Writes the specified byte to this output writer. + */ +void BasicWriter::put(char ch) +{ + if (destination) + destination->put(ch); +} + +/** + * Provide printf()-like formatting + */ +Writer &BasicWriter::printf(char const *fmt, ...) +{ + va_list args; + va_start(args, fmt); + gchar *buf = g_strdup_vprintf(fmt, args); + va_end(args); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} +/** + * Writes the specified character to this output writer. + */ +Writer &BasicWriter::writeChar(char ch) +{ + put(ch); + return *this; +} + + +/** + * Writes the specified unicode string to this output writer. + */ +Writer &BasicWriter::writeUString(const Glib::ustring &str) +{ + writeStdString(str.raw()); + return *this; +} + +/** + * Writes the specified standard string to this output writer. + */ +Writer &BasicWriter::writeStdString(const std::string &str) +{ + for (char it : str) { + put(it); + } + return *this; +} + +/** + * Writes the specified character string to this output writer. + */ +Writer &BasicWriter::writeString(const char *str) +{ + std::string tmp; + if (str) + tmp = str; + else + tmp = "null"; + writeStdString(tmp); + return *this; +} + + + + +/** + * + */ +Writer &BasicWriter::writeBool (bool val ) +{ + if (val) + writeString("true"); + else + writeString("false"); + return *this; +} + + +/** + * + */ +Writer &BasicWriter::writeShort (short val ) +{ + gchar *buf = g_strdup_printf("%d", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + + + +/** + * + */ +Writer &BasicWriter::writeUnsignedShort (unsigned short val ) +{ + gchar *buf = g_strdup_printf("%u", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeInt (int val) +{ + gchar *buf = g_strdup_printf("%d", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeUnsignedInt (unsigned int val) +{ + gchar *buf = g_strdup_printf("%u", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeLong (long val) +{ + gchar *buf = g_strdup_printf("%ld", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeUnsignedLong(unsigned long val) +{ + gchar *buf = g_strdup_printf("%lu", val); + if (buf) { + writeString(buf); + g_free(buf); + } + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeFloat(float val) +{ +#if 1 + gchar *buf = g_strdup_printf("%8.3f", val); + if (buf) { + writeString(buf); + g_free(buf); + } +#else + std::string tmp = ftos(val, 'g', 8, 3, 0); + writeStdString(tmp); +#endif + return *this; +} + +/** + * + */ +Writer &BasicWriter::writeDouble(double val) +{ +#if 1 + gchar *buf = g_strdup_printf("%8.3f", val); + if (buf) { + writeString(buf); + g_free(buf); + } +#else + std::string tmp = ftos(val, 'g', 8, 3, 0); + writeStdString(tmp); +#endif + return *this; +} + + +Writer& operator<< (Writer &writer, char val) + { return writer.writeChar(val); } + +Writer& operator<< (Writer &writer, Glib::ustring &val) + { return writer.writeUString(val); } + +Writer& operator<< (Writer &writer, std::string &val) + { return writer.writeStdString(val); } + +Writer& operator<< (Writer &writer, char const *val) + { return writer.writeString(val); } + +Writer& operator<< (Writer &writer, bool val) + { return writer.writeBool(val); } + +Writer& operator<< (Writer &writer, short val) + { return writer.writeShort(val); } + +Writer& operator<< (Writer &writer, unsigned short val) + { return writer.writeUnsignedShort(val); } + +Writer& operator<< (Writer &writer, int val) + { return writer.writeInt(val); } + +Writer& operator<< (Writer &writer, unsigned int val) + { return writer.writeUnsignedInt(val); } + +Writer& operator<< (Writer &writer, long val) + { return writer.writeLong(val); } + +Writer& operator<< (Writer &writer, unsigned long val) + { return writer.writeUnsignedLong(val); } + +Writer& operator<< (Writer &writer, float val) + { return writer.writeFloat(val); } + +Writer& operator<< (Writer &writer, double val) + { return writer.writeDouble(val); } + + + +//######################################################################### +//# O U T P U T S T R E A M W R I T E R +//######################################################################### + + +OutputStreamWriter::OutputStreamWriter(OutputStream &outputStreamDest) + : outputStream(outputStreamDest) +{ +} + + + +/** + * Close the underlying OutputStream + */ +void OutputStreamWriter::close() +{ + flush(); + outputStream.close(); +} + +/** + * Flush the underlying OutputStream + */ +void OutputStreamWriter::flush() +{ + outputStream.flush(); +} + +/** + * Overloaded to redirect the output chars from the next Writer + * in the chain to an OutputStream instead. + */ +void OutputStreamWriter::put(char ch) +{ + outputStream.put(ch); +} + +//######################################################################### +//# S T D W R I T E R +//######################################################################### + + +/** + * + */ +StdWriter::StdWriter() +{ + outputStream = new StdOutputStream(); +} + + +/** + * + */ +StdWriter::~StdWriter() +{ + delete outputStream; +} + + + +/** + * Close the underlying OutputStream + */ +void StdWriter::close() +{ + flush(); + outputStream->close(); +} + +/** + * Flush the underlying OutputStream + */ +void StdWriter::flush() +{ + outputStream->flush(); +} + +/** + * Overloaded to redirect the output chars from the next Writer + * in the chain to an OutputStream instead. + */ +void StdWriter::put(char ch) +{ + outputStream->put(ch); +} + + +} // namespace IO +} // namespace Inkscape + + +//######################################################################### +//# E N D O F F I L E +//######################################################################### |