Source code for camelot.view.controls.delegates.comboboxdelegate

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import logging
logger = logging.getLogger('camelot.view.controls.delegates.comboboxdelegate')

from .customdelegate import CustomDelegate, DocumentationMetaclass

import six

from ....core.qt import Qt, variant_to_py
from camelot.view.controls import editors
from camelot.view.proxy import ValueLoading

@six.add_metaclass(DocumentationMetaclass)
[docs]class ComboBoxDelegate(CustomDelegate):
    
    editor = editors.ChoicesEditor

    def setEditorData(self, editor, index):
        value = variant_to_py(index.data(Qt.EditRole))
        field_attributes = variant_to_py(index.data(Qt.UserRole))
        editor.set_field_attributes(**(field_attributes or {}))
        editor.set_value(value)

    def paint(self, painter, option, index):
        painter.save()
        self.drawBackground(painter, option, index)
        value = variant_to_py(index.data(Qt.DisplayRole))
        if value in (None, ValueLoading):
            value = ''
        self.paint_text(painter, option, index, six.text_type(value) )
        painter.restore()