moving trunk for module inkscape

(bzr r1)

1 files changed, 140 insertions, 0 deletions

diff --git a/src/jabber_whiteboard/session-file.cpp b/src/jabber_whiteboard/session-file.cpp
new file mode 100644
index 000000000..137e56510
--- /dev/null
+++ b/src/jabber_whiteboard/session-file.cpp
@@ -0,0 +1,140 @@
+/**
+ * Whiteboard session file object
+ *
+ * Authors:
+ * David Yip <yipdw@rose-hulman.edu>
+ *
+ * Copyright (c) 2005 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include <glibmm.h>
+#include <glibmm/i18n.h>
+
+#include "util/list-container.h"
+
+#include "jabber_whiteboard/message-utilities.h"
+#include "jabber_whiteboard/node-utilities.h"
+#include "jabber_whiteboard/typedefs.h"
+
+#include "jabber_whiteboard/session-file.h"
+
+
+namespace Inkscape {
+
+namespace Whiteboard {
+
+SessionFile::SessionFile(Glib::ustring const& filename, bool reading, bool compress) : _filename(filename), _compress(compress), _reading(reading)
+{
+	try {
+
+		if (!reading) {
+			this->fptr = Glib::IOChannel::create_from_file(filename, "w+");
+		} else {
+			this->fptr = Glib::IOChannel::create_from_file(filename, "r");
+		}
+		this->_ateof = false;
+	} catch (Glib::FileError) {
+		throw;
+	}
+}
+
+SessionFile::~SessionFile() 
+{
+	if (!this->_reading) {
+		this->commit();
+	}
+	this->close();
+}
+
+gint64
+SessionFile::nextMessageFrom(gint64 from, Glib::ustring& buf)
+{
+	try {
+		Glib::ustring line;
+		Glib::IOStatus st;
+		Node part;
+
+		gint64 accum = from;
+		buf = "";
+		this->fptr->seek(accum, Glib::SEEK_TYPE_SET);
+
+		while(part.tag != MESSAGE_COMMIT) {
+			st = this->fptr->read_line(line);
+			if (st == Glib::IO_STATUS_EOF) {
+				break;
+			} else {
+				accum += line.bytes();
+				this->fptr->seek(accum);
+				MessageUtilities::getFirstMessageTag(part, line);
+				buf += line;
+				line.clear();
+			}
+		} 
+		
+		if (st == Glib::IO_STATUS_NORMAL) {
+			// reset eof flag if successful
+			this->_ateof = false;
+			return from + buf.bytes();
+		} else {
+			if (st == Glib::IO_STATUS_EOF) {
+				this->_ateof = true;
+			}
+			return from;
+		}
+	} catch (Glib::IOChannelError e) {
+		g_warning("Could not read next message due to I/O error (error: %s)!", e.what().data());
+	} catch (Glib::ConvertError e) {
+		g_warning("Could not read next message due to charset conversion error (error: %s)!", e.what().data());
+	}
+
+	return from;
+}
+
+void
+SessionFile::addMessage(Glib::ustring const& message)
+{
+	Glib::ustring msg = message;
+	this->changes.push_back(msg);
+}
+
+void
+SessionFile::commit()
+{
+	if (!this->_reading) {
+		SessionQueue::iterator i = changes.begin();
+		for(; i != changes.end(); i++) {
+			try {
+				fptr->write(*i);
+				changes.erase(i);
+			} catch (Glib::IOChannelError e) {
+				g_warning("Caught I/O exception (error string: %s) while committing change to session file %s.  Attempting to commit remaining changes; session file will be inconsistent with whiteboard session history.", e.what().c_str(), this->_filename.c_str());
+			} catch (Glib::ConvertError e) {
+				g_warning("Caught character set conversion error (error string: %s) while committing change to session file %s.  Attempting to commit remaining changes; session file will be inconsistent with whiteboard session history.", e.what().c_str(), this->_filename.c_str());
+			}
+		}
+		fptr->write("\n");
+	}
+}
+
+void
+SessionFile::close()
+{
+	fptr->close(true);
+}
+
+}
+
+}
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :