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

#  ============================================================================
#
#  Copyright (C) 2007-2016 Conceptive Engineering bvba.
#  www.conceptive.be / info@conceptive.be
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#      * Redistributions of source code must retain the above copyright
#        notice, this list of conditions and the following disclaimer.
#      * Redistributions in binary form must reproduce the above copyright
#        notice, this list of conditions and the following disclaimer in the
#        documentation and/or other materials provided with the distribution.
#      * Neither the name of Conceptive Engineering nor the
#        names of its contributors may be used to endorse or promote products
#        derived from this software without specific prior written permission.
#  
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
#  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
#  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
#  DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
#  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
#  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
#  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#  ============================================================================

from ....core.qt import Qt, variant_to_py

import six

from .customdelegate import CustomDelegate, DocumentationMetaclass
from .. import editors
from ...utils import text_from_richtext
from ...proxy import ValueLoading

@six.add_metaclass(DocumentationMetaclass)
[docs]class RichTextDelegate(CustomDelegate): """Custom delegate for rich text (HTML) string values """ editor = editors.RichTextEditor def __init__(self, parent=None, editable=True, **kwargs): CustomDelegate.__init__(self, parent, editable) self.editable = editable self._height = self._height * 10 self._width = self._width * 3 def paint(self, painter, option, index): painter.save() self.drawBackground(painter, option, index) value = six.text_type(variant_to_py(index.model().data(index, Qt.EditRole))) value_str = u'' if value not in (None, ValueLoading): value_str = ' '.join(text_from_richtext(value))[:256] self.paint_text(painter, option, index, value_str) painter.restore()