92 lines
2.4 KiB
Python
92 lines
2.4 KiB
Python
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import gtk
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import hippo
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import gnomevfs
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from louie import dispatcher
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from sugar.graphics.roundbox import CanvasRoundBox
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class LogEntry(object):
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def __init__(self, text):
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self.text = text.strip()
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class LogModel(list):
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def __init__(self, path):
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self.path = path
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self.position = 0
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self.read_lines()
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gnomevfs.monitor_add('file://' + self.path,
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gnomevfs.MONITOR_FILE,
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self._log_file_changed_cb)
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def read_lines(self):
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log_file = open(self.path, 'r')
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log_file.seek(self.position)
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for line in log_file.readlines():
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self.add_line(line)
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self.position = log_file.tell()
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log_file.close()
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def add_line(self, line):
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entry = LogEntry(line)
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self.append(entry)
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dispatcher.send('entry-added', self, entry)
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def _log_file_changed_cb(self, monitor_uri, info_uri, event):
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if event == gnomevfs.MONITOR_EVENT_CHANGED:
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self.read_lines()
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class LogView(hippo.Canvas):
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def __init__(self, model):
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hippo.Canvas.__init__(self)
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self.model = model
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scrollbars = hippo.CanvasScrollbars()
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scrollbars.set_policy(hippo.ORIENTATION_HORIZONTAL,
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hippo.SCROLLBAR_NEVER)
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widget = scrollbars.props.widget
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widget.props.vadjustment.connect('changed', self._vadj_changed_cb)
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self.set_root(scrollbars)
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self.box = hippo.CanvasBox(spacing=5, padding=20)
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scrollbars.set_root(self.box)
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for entry_model in self.model:
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self.add_entry(entry_model)
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dispatcher.connect(self._entry_added_cb, 'entry-added', self.model)
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def add_entry(self, entry_model):
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entry_box = CanvasRoundBox(background_color=0xffffffff, padding=5)
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self.box.append(entry_box)
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entry = hippo.CanvasText(text=entry_model.text,
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size_mode=hippo.CANVAS_SIZE_WRAP_WORD)
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entry_box.append(entry)
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def _entry_added_cb(self, entry):
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self.add_entry(entry)
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def _vadj_changed_cb(self, adj):
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adj.props.value = adj.upper - adj.page_size
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if __name__ == "__main__":
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import sys
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window = gtk.Window()
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window.set_default_size(800, 600)
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model = LogModel(sys.argv[1])
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log_view = LogView(model)
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window.add(log_view)
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log_view.show()
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window.show()
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gtk.main()
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