# -*- coding: utf-8 -*-

from __future__ import annotations

from typing import TYPE_CHECKING

from guidata.dataset import DataSet, GetAttrProp, StringItem

from plotpy.config import _

from plotpy.styles.base import ItemParameters

if TYPE_CHECKING:

from plotpy.items import PolygonMapItem

class PolygonMapParam(DataSet):

"""Dataset defining the parameters of a PolygonMapItem instance"""

_multiselection = False

label = StringItem(_("Title"), default="").set_prop(

"display", hide=GetAttrProp("_multiselection")

)

def update_param(self, item: PolygonMapItem) -> None:

"""Updates the parameters using values from a given PolygonMapItem

Args:

item: reference PolygonMapItem instance

"""

self.label = str(item.title().text())

def update_item(self, item: PolygonMapItem) -> None:

"""Updates a given PolygonMapItem using the current parameters

Args:

item: instance of PolygonMapItem to update

"""

plot = item.plot()

if plot is not None:

plot.blockSignals(True) # Avoid unwanted calls of update_param

# triggered by the setter methods below

if not self._multiselection:

# Non common parameters

item.setTitle(self.label)

if plot is not None:

plot.blockSignals(False)

class PolygonParam_MS(PolygonMapParam):

"""Same as PolygonParam but for multiselection"""

_multiselection = True

ItemParameters.register_multiselection(PolygonMapParam, PolygonParam_MS)