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# Copyright (C) 2007-2016 Conceptive Engineering bvba.
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# ============================================================================
import six
from ....core.qt import variant_to_py, Qt, QtGui
from .customdelegate import DocumentationMetaclass, CustomDelegate
from camelot.view.proxy import ValueLoading
@six.add_metaclass(DocumentationMetaclass)
[docs]class IntervalsDelegate(CustomDelegate):
"""Custom delegate for visualizing camelot.container.IntervalsContainer
data:
"""
def paint(self, painter, option, index):
painter.save()
self.drawBackground(painter, option, index)
intervals_container = variant_to_py(index.model().data(index, Qt.EditRole))
field_attributes = variant_to_py(index.data(Qt.UserRole))
# background_color = QtGui.QColor(index.model().data(index, Qt.BackgroundRole))
# editable is defaulted to False, because there is no editor, no need for one currently
editable, color, background_color = False, None, None
if field_attributes != ValueLoading:
editable = field_attributes.get( 'editable', False )
background_color = field_attributes.get( 'background_color', QtGui.QColor(index.model().data(index, Qt.BackgroundRole)) )
color = field_attributes.get('color', None)
if( option.state & QtGui.QStyle.State_Selected ):
painter.fillRect(option.rect, option.palette.highlight())
else:
if not editable:
painter.fillRect(option.rect, option.palette.window())
else:
painter.fillRect(option.rect, background_color)
if intervals_container and intervals_container!=ValueLoading:
rect = option.rect
xscale = float(rect.width()-4)/(intervals_container.max - intervals_container.min)
xoffset = intervals_container.min * xscale + rect.x()
yoffset = rect.y() + rect.height()/2
for interval in intervals_container.intervals:
qcolor = QtGui.QColor( interval.color or color )
pen = QtGui.QPen( qcolor )
pen.setWidth(3)
painter.setPen(pen)
xscale_interval = xscale
x1, x2 = xoffset + interval.begin *xscale_interval, xoffset + interval.end*xscale_interval
painter.drawLine(x1, yoffset, x2, yoffset)
painter.drawEllipse(x1-1, yoffset-1, 2, 2)
painter.drawEllipse(x2-1, yoffset-1, 2, 2)
pen = QtGui.QPen(Qt.white)
painter.restore()
def createEditor(self, parent, option, index):
pass
def setEditorData(self, editor, index):
pass
def setModelData(self, editor, model, index):
pass