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
+//#########################################################################