def data(model, qtindex, role=Qt.DisplayRole, **kwargs):
"""
Depending on the role, returns either data or how to display data
Returns the data stored under the given role for the item referred to by
the index.
Note:
If you do not have a value to return, return None
"""
if not qtindex.isValid():
return None
flags = model.flags(qtindex)
#row = qtindex.row()
col = qtindex.column()
node = qtindex.internalPointer()
if model.col_level_list[col] != node.get_level():
return QVariantHack()
type_ = model._get_type(col)
#if row >= model.rowCount():
# # Yuck.
# print('[item_model] Yuck. row=%r excedes rowCount=%r' %
# (row, model.rowCount()))
# return QVariantHack()
#if role == Qt.SizeHintRole:
# #printDBG('REQUEST QSIZE FOR: ' + qtype.ItemDataRoles[role])
# return QtCore.QSize(64, 64)
#
# Specify Text Alignment Role
if role == Qt.TextAlignmentRole:
if type_ in qtype.QT_IMAGE_TYPES:
value = Qt.AlignRight | Qt.AlignVCenter
elif type_ in qtype.QT_BUTTON_TYPES:
value = Qt.AlignRight | Qt.AlignVCenter
elif type_ in ut.VALID_FLOAT_TYPES:
value = Qt.AlignRight | Qt.AlignVCenter
else:
value = Qt.AlignHCenter | Qt.AlignVCenter
return value
#
# Specify Background Rule
elif role == Qt.BackgroundRole:
value = model._get_bgrole_value(qtindex)
if value is not None:
return value
if flags & Qt.ItemIsEditable:
# Editable fields are colored
return QVariantHack(model.EditableItemColor)
elif flags & Qt.ItemIsUserCheckable:
# Checkable color depends on the truth value
data = model._get_data(qtindex, **kwargs)
if data:
return QVariantHack(model.TrueItemColor)
else:
return QVariantHack(model.FalseItemColor)
else:
pass
#
# Specify Foreground Role
elif role == Qt.ForegroundRole:
if flags & Qt.ItemIsEditable:
return QtGui.QBrush(QtGui.QColor(0, 0, 0))
# Specify Decoration Role (superceded by thumbdelegate)
# elif role == Qt.DecorationRole and type_ in qtype.QT_IMAGE_TYPES:
# Specify CheckState Role:
if role == Qt.CheckStateRole:
if flags & Qt.ItemIsUserCheckable:
data = model._get_data(qtindex, **kwargs)
return Qt.Checked if data else Qt.Unchecked
#
# Return the data to edit or display
elif role in (Qt.DisplayRole, Qt.EditRole):
# For types displayed with custom delegates do not cast data into a
# qvariant. This includes PIXMAP, BUTTON, and COMBO
if type_ in qtype.QT_DELEGATE_TYPES:
data = model._get_data(qtindex, **kwargs)
#print(data)
return data
else:
# Display data with default delegate by casting to a qvariant
data = model._get_data(qtindex, **kwargs)
value = qtype.cast_into_qt(data)
return value
else:
#import builtins
#role_name = qtype.ItemDataRoles[role]
#builtins.print('UNHANDLED ROLE=%r' % role_name)
pass
# else return None
return QVariantHack()
def rgb_to_qbrush(rgb):
return QtGui.QBrush(rgb_to_qcolor(rgb))