from gi.repository import Gtk
from pychrysalide.features import *


DEFAULT_MSG = 'No active loaded binary'


class HelloPanel(PanelItem):

    def __init__(self):
        """Initialize the GUI panel."""

        self._label = Gtk.Label()
        self._label.set_text(DEFAULT_MSG)

        params = {

            'name' : 'Hello',
            'widget' : self._label,

            'personality' : PanelItem.PIP_SINGLETON,
            'lname' : 'Hello panel description',
            'dock' : True,
            'path' : 'MEN'

        }

        super(HelloPanel, self).__init__(**params)


    def _change_content(self, old, new):
        """Get notified about loaded content change."""

        if type(new) is LoadedBinary:

            count = len(list(new.processor.instrs))

            self._label.set_text('Loaded binary with %u instructions' % count)

        else:

            self._label.set_text(DEFAULT_MSG)