# -*- coding: utf-8 -*-
from __future__ import absolute_import, division, print_function
from wbia.guitool.__PYQT__ import QtCore, QtGui
from wbia.guitool.__PYQT__ import QtWidgets # NOQA
from wbia.guitool.__PYQT__.QtCore import Qt
import math
import utool
import six
utool.noinject(__name__, '[StripProxyModel]', DEBUG=False)
# STRIPE_PROXY_BASE = QtGui.QAbstractProxyModel
# STRIPE_PROXY_BASE = QtGui.QSortFilterProxyModel
try:
STRIPE_PROXY_BASE = QtGui.QIdentityProxyModel
except Exception:
STRIPE_PROXY_BASE = QtCore.QIdentityProxyModel
STRIP_PROXY_META_CLASS = utool.makeForwardingMetaclass(
lambda self: self.sourceModel(),
[
'_set_context_id',
'_get_context_id',
'_set_changeblocked',
'_get_changeblocked',
'_about_to_change',
'_change',
'_update',
'_rows_updated',
'name',
],
base_class=STRIPE_PROXY_BASE,
)
STRIP_PROXY_SIX_BASE = six.with_metaclass(STRIP_PROXY_META_CLASS, STRIPE_PROXY_BASE)
[docs]class StripeProxyModel(
STRIP_PROXY_SIX_BASE
): # (STRIPE_PROXY_BASE, metaclass=STRIP_PROXY_META_CLASS):
# __metaclass__ = STRIP_PROXY_META_CLASS
def __init__(self, parent=None, numduplicates=1):
STRIPE_PROXY_BASE.__init__(self, parent=parent)
self._nd = numduplicates
[docs] def rowCount(self, parent=QtCore.QModelIndex()):
sourceParent = self.mapToSource(parent)
source_rows = self.sourceModel().rowCount(parent=sourceParent)
rows = math.ceil(source_rows / self._nd)
# print('StripeProxyModel.rowCount(): %r %r' % (source_rows, rows))
return int(rows)
[docs] def columnCount(self, parent=QtCore.QModelIndex()):
source_cols = self.sourceModel().columnCount(parent=parent)
cols = self._nd * source_cols
# print('StripeProxyModel.columnCount(): %r %r' % (source_cols, cols))
return int(cols)
[docs] def proxy_to_source(self, row, col, parent=QtCore.QModelIndex()):
source_model = self.sourceModel()
source_cols = source_model.columnCount(parent=parent)
r, c, p = row, col, parent
r2 = int(math.floor(c / source_cols)) + (r * self._nd)
c2 = c % source_cols
p2 = p
return r2, c2, p2
[docs] def source_to_proxy(self, row, col, parent=QtCore.QModelIndex()):
source_model = self.sourceModel()
source_cols = source_model.columnCount(parent=parent)
r, c, p = row, col, parent
r2 = int(math.floor(r / self._nd))
c2 = ((r % self._nd) * source_cols) + c
p2 = p
return r2, c2, p2
[docs] def mapToSource(self, proxyIndex):
""" returns index into original model """
if proxyIndex is None:
return None
if proxyIndex.isValid():
r2, c2, p2 = self.proxy_to_source(proxyIndex.row(), proxyIndex.column())
# print('StripeProxyModel.mapToSource(): %r %r %r; %r %r %r' % (r, c, p, r2, c2, p2))
sourceIndex = self.sourceModel().index(
r2, c2, parent=p2
) # self.sourceModel().root_node[r2]
else:
sourceIndex = QtCore.QModelIndex()
return sourceIndex
[docs] def mapFromSource(self, sourceIndex):
""" returns index into proxy model """
if sourceIndex is None:
return None
if sourceIndex.isValid():
r2, c2, p2 = self.source_to_proxy(
sourceIndex.row(), sourceIndex.column(), sourceIndex.parent()
)
proxyIndex = self.index(r2, c2, p2)
else:
proxyIndex = QtCore.QModelIndex()
return proxyIndex
[docs] def index(self, row, col, parent=QtCore.QModelIndex()):
if (row, col) != (-1, -1):
proxyIndex = self.createIndex(row, col, parent)
else:
proxyIndex = QtCore.QModelIndex()
return proxyIndex
[docs] def data(self, proxyIndex, role=Qt.DisplayRole, **kwargs):
sourceIndex = self.mapToSource(proxyIndex)
return self.sourceModel().data(sourceIndex, role, **kwargs)
[docs] def setData(self, proxyIndex, value, role=Qt.EditRole):
sourceIndex = self.mapToSource(proxyIndex)
return self.sourceModel().setData(sourceIndex, value, role)
[docs] def sort(self, column, order):
source_model = self.sourceModel()
source_cols = source_model.columnCount()
if source_cols > 0:
source_model.sort(column % source_cols, order)
[docs] def parent(self, index):
return self.sourceModel().parent(self.mapToSource(index))
# def mapSelectionToSource(self, sel):
# def flags(self, *args, **kwargs):
# return self.sourceModel().flags(*args, **kwargs)
# def headerData(self, *args, **kwargs):
# return self.sourceModel().headerData(*args, **kwargs)
#
# def hasChildren(self, *args, **kwargs):
# return self.sourceModel().hasChildren(*args, **kwargs)
#
# def itemData(self, *args, **kwargs):
# return self.sourceModel().itemData(*args, **kwargs)
def _update_rows(self):
return self.sourceModel()._update_rows()
def _get_row_id(self, proxyIndex):
return self.sourceModel()._get_row_id(self.mapToSource(proxyIndex))
def _get_level(self, proxyIndex):
return self.sourceModel()._get_level(self.mapToSource(proxyIndex))
def _get_adjacent_qtindex(self, proxyIndex, *args, **kwargs):
qtindex = self.mapToSource(proxyIndex)
next_qtindex = self.sourceModel()._get_adjacent_qtindex(qtindex, *args, **kwargs)
next_proxyindex = self.mapFromSource(next_qtindex)
return next_proxyindex