moving trunk for module inkscape

(bzr r1)

1 files changed, 176 insertions, 0 deletions

diff --git a/src/jabber_whiteboard/session-file-player.cpp b/src/jabber_whiteboard/session-file-player.cpp
new file mode 100644
index 000000000..538d0bc91
--- /dev/null
+++ b/src/jabber_whiteboard/session-file-player.cpp
@@ -0,0 +1,176 @@
+/**
+ * Whiteboard session file playback mechanism
+ *
+ * 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 <gtkmm/textbuffer.h>
+
+#include "desktop-handles.h"
+#include "document.h"
+
+#include "jabber_whiteboard/defines.h"
+#include "jabber_whiteboard/session-file.h"
+#include "jabber_whiteboard/session-file-player.h"
+#include "jabber_whiteboard/session-manager.h"
+
+namespace Inkscape {
+
+namespace Whiteboard {
+
+SessionFilePlayer::SessionFilePlayer(unsigned int bufsz, SessionManager* sm) 
+{
+	this->_sm = sm;
+	this->_delay = 100;
+	this->_playing = false;
+	this->_curdir = FORWARD;
+
+	this->_current = this->_next = 0;
+	this->_sf = NULL;
+
+	if (sm->session_file() != NULL) {
+		this->_sf = sm->session_file();
+	} else {
+		g_warning("Cannot operate on NULL SessionFile.");
+	}
+}
+
+SessionFilePlayer::~SessionFilePlayer()
+{
+
+}
+
+void
+SessionFilePlayer::load(SessionFile* sm)
+{
+	this->stop();
+	if (this->_sm != NULL) {
+		this->_sf = sm;
+		this->_current = this->_next = 0;
+		this->_visited.clear();
+	}
+}
+
+SessionFile*
+SessionFilePlayer::unload()
+{
+	SessionFile* sf = this->_sf;
+	this->stop();
+	this->_sf = NULL;
+	return sf;
+}
+
+Glib::ustring const&
+SessionFilePlayer::filename()
+{
+	return this->_sf->filename();
+}
+
+Glib::ustring const&
+SessionFilePlayer::curmsg()
+{
+	return this->_curmsg;
+}
+
+void
+SessionFilePlayer::start()
+{
+	this->_playback_dispatcher = Glib::signal_timeout().connect(sigc::bind< 0 > (sigc::mem_fun(*(this), &SessionFilePlayer::step), this->_curdir), this->_delay);
+	this->_playing = true;
+}
+
+void
+SessionFilePlayer::stop()
+{
+	this->_playback_dispatcher.disconnect();
+	this->_playing = false;
+}
+
+void
+SessionFilePlayer::setDelay(unsigned int delay)
+{
+	this->_delay = delay;
+	if (this->_playing) {
+		this->stop();
+		this->start();
+	}
+}
+
+void
+SessionFilePlayer::setMessageOutputWidget(Glib::RefPtr<Gtk::TextBuffer> const& widgetptr)
+{
+	this->_outputwidget = widgetptr;
+}
+
+bool
+SessionFilePlayer::step(unsigned short dir)
+{
+	switch (dir) {
+		case FORWARD: {
+		//	Glib::ustring buf;
+			this->_current = this->_next;
+			this->_next = this->_sf->nextMessageFrom(this->_current, this->_curmsg);
+		if (this->_next == this->_current) {
+				return false;
+			} else {
+				this->_visited.push_front(std::make_pair< gint64, gint64 >(this->_current, this->_curmsg.bytes()));
+				this->_outputMessageToWidget();
+				this->_sm->receiveChange(this->_curmsg);
+				sp_document_done(SP_DT_DOCUMENT(this->_sm->desktop()));
+				this->_curdir = FORWARD;
+				return true;
+			}
+			break;
+					  }
+		case BACKWARD:
+			if (this->_current == 0) {
+				return false;
+			} else {
+				this->_visited.pop_front();
+				std::pair< gint64, gint64 > last = this->_visited.front();
+				this->_current = last.first;
+				this->_next = last.first + last.second;
+				this->_sf->nextMessageFrom(this->_current, this->_curmsg);
+				this->_outputMessageToWidget();
+				sp_document_undo(SP_DT_DOCUMENT(this->_sm->desktop()));
+				this->_curdir = BACKWARD;
+				return true;
+			}
+			break;
+		default:
+			return true;
+			break;
+	}
+}
+
+void
+SessionFilePlayer::_outputMessageToWidget()
+{
+	if (this->_outputwidget) {
+		this->_outputwidget->set_text(this->_curmsg);
+	}
+}
+
+}
+
+}
+
+/*
+  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 :