add example of crc'ing with gtk progress bar

examples/gtkcrc.py

@@ -0,0 +1,93 @@
+# -*- Mode: Python; test-case-name: morituri.test.test_header -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
+# Morituri - for those about to RIP
+
+# Copyright (C) 2009 Thomas Vander Stichele
+
+# This file is part of morituri.
+# 
+# morituri 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, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# morituri 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 morituri.  If not, see <http://www.gnu.org/licenses/>.
+
+import sys
+
+import gst
+import time
+
+import gobject
+gobject.threads_init()
+
+import gtk
+
+from morituri.common import task
+
+class TaskProgress(gtk.VBox):
+    __gsignals__ = {
+        'stop': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ())
+    }
+
+    def __init__(self, task):
+        gtk.VBox.__init__(self)
+        self.set_border_width(6)
+        self.set_spacing(6)
+
+        label = gtk.Label(task.description)
+        self.add(label)
+
+        self._progress = gtk.ProgressBar()
+        self.add(self._progress)
+
+        task.addListener(self)
+
+    def start(self):
+        pass
+
+    def stop(self):
+        self.emit('stop')
+
+    def progress(self, value):
+        self._progress.set_fraction(value)
+
+path = 'test.flac'
+
+start = 0
+end = -1
+try:
+    path = sys.argv[1]
+except IndexError:
+    pass
+
+try:
+    start = int(sys.argv[2])
+except:
+    pass
+
+try:
+    end = int(sys.argv[3])
+except:
+    pass
+
+crctask = task.CRCTask(path, start, end)
+
+window = gtk.Window()
+progress = TaskProgress(crctask)
+progress.connect('stop', lambda _: gtk.main_quit())
+window.add(progress)
+window.show_all()
+
+crctask.start()
+
+gtk.main()
+
+print "CRC: %08X" % crctask.crc