1 files changed, 62 insertions, 0 deletions
diff --git a/src/text_buffer.py b/src/text_buffer.py
new file mode 100644
index 00000000..ad002892
--- /dev/null
+++ b/src/text_buffer.py
@@ -0,0 +1,62 @@
+# Copyright 2010 Le Coz Florent <louizatakk@fedoraproject.org>
+#
+# This file is part of Poezio.
+#
+# Poezio is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+#
+# Poezio 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Poezio.  If not, see <http://www.gnu.org/licenses/>.
+
+from message import Message
+from datetime import datetime
+import theme
+
+class TextBuffer(object):
+    """
+    This class just keep trace of messages, in a list with various
+    informations and attributes.
+    """
+    def __init__(self):
+        self.messages = []         # Message objects
+        self.pos = 0
+
+    def add_message(self, txt, time=None, nickname=None, colorized=False):
+        color = theme.COLOR_NORMAL_TEXT
+        user = None
+        time = time or datetime.now()
+        if self.pos:            # avoid scrolling of one line when one line is received
+            self.pos += 1
+        self.messages.append(Message(txt, time, nickname, user, color, colorized))
+
+    def remove_line_separator(self):
+        """
+        Remove the line separator
+        """
+        if None in self.messages:
+            self.messages.remove(None)
+
+    def add_line_separator(self):
+        """
+        add a line separator at the end of messages list
+        """
+        if None not in self.messages:
+            self.messages.append(None)
+
+    def scroll_up(self, dist=14):
+        # The pos can grow a lot over the top of the number of
+        # available lines, it will be fixed on the next refresh of the
+        # screen anyway
+        self.pos += dist
+
+    def scroll_down(self, dist=14):
+        self.pos -= dist
+        if self.pos <= 0:
+            self.pos = 0
+