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00033 import os
00034
00035 from python_qt_binding import loadUi
00036 from python_qt_binding.QtGui import QIcon, QWidget
00037
00038
00039 class FilterWrapperWidget(QWidget):
00040 """
00041 Wraps the other filter widgets to provide enable check box, delete button control and uniform labeling
00042 """
00043 def __init__(self, widget, filter_name):
00044 """
00045 :param widget: the Qwidget to wrap ''Qwidget''
00046 :param filter_name: the name to be placed on the label ''str''
00047 """
00048 super(FilterWrapperWidget, self).__init__()
00049 ui_file = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'filter_wrapper_widget.ui')
00050 loadUi(ui_file, self)
00051 self.setObjectName('FilterWrapperWidget')
00052 self.delete_button.setIcon(QIcon.fromTheme('list-remove'))
00053 self._widget = widget
00054
00055
00056 stretch = self.layout_frame.stretch(2)
00057 self.layout_frame.insertWidget(2, widget)
00058 self.layout_frame.setStretch(2, stretch)
00059
00060
00061
00062 self.layout_frame.setStretch(3, 0)
00063
00064 self.enabled_checkbox.clicked[bool].connect(self.enabled_callback)
00065 self.filter_name_label.setText(filter_name + ':')
00066
00067 def enabled_callback(self, checked):
00068 self._widget._parentfilter.set_enabled(checked)
00069 self._widget.setEnabled(checked)
00070
00071 def repopulate(self):
00072 self._widget.repopulate()
00073
00074 def save_settings(self, settings):
00075 """
00076 Handles writing the enabled flag to the ini file and then passes the
00077 settings object to the wrapped widget
00078
00079 :param settings: used to write the settings to an ini file ''qt_gui.settings.Settings''
00080 """
00081 settings.set_value('enabled', self._widget._parentfilter._enabled)
00082 self._widget.save_settings(settings)
00083
00084 def restore_settings(self, settings):
00085 """
00086 Handles reading the enabled flag from the ini file.
00087 :param settings: used to read the settings to an ini file ''qt_gui.settings.Settings''
00088 """
00089 checked = settings.value('enabled') in [True, 'true']
00090 self.enabled_callback(checked)
00091 self.enabled_checkbox.setChecked(checked)
00092 self._widget.restore_settings(settings)