#!/usr/bin/env python

#############################################################################
##
## This file is part of Taurus, a Tango User Interface Library
## 
## http://www.tango-controls.org/static/taurus/latest/doc/html/index.html
##
## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
## 
## Taurus is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
## 
## Taurus is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU Lesser General Public License for more details.
## 
## You should have received a copy of the GNU Lesser General Public License
## along with Taurus.  If not, see <http://www.gnu.org/licenses/>.
##
#############################################################################

"""Extension of :mod:`guiqwt.styles`"""



__docformat__ = 'restructuredtext'


from guidata.dataset.datatypes import DataSet
from guidata.dataset.dataitems import StringItem, IntItem, ChoiceItem, BoolItem


# ===================================================
# Taurus Curve parameters
# ===================================================
class TaurusCurveParam(DataSet):
    xModel = StringItem("Model for X", default="")
    yModel = StringItem("Model for Y", default="")

    def update_param(self, curve):
        self.xModel.update_param(curve.taurusparam.xModel)
        self.yModel.update_param(curve.taurusparam.yModel)
#        DataSet.update_param(self, curve)
    
    def update_curve(self, curve):
        curve.setModels(self.xModel or None, self.yModel)
#        DataSet.update_curve(self, curve)

class TaurusTrendParam(DataSet):
    model = StringItem("Model", default="")
    maxBufferSize = IntItem("Buffer Size", default=16384)
    useArchiving = BoolItem("Use Archiving", default=False)
    stackMode = ChoiceItem("Stack Mode",
                       [("datetime",  "Absolute Time"),
                        ("timedelta", "Relative Time"),
                        ("event", "Event")],
                       default="datetime")

    def update_param(self, curve):
        self.model.update_param(curve.taurusparam.model)
        self.maxBufferSize.update_param(curve.taurusparam.maxBufferSize)
        self.stackMode.update_param(curve.taurusparam.stackMode)
    
    def update_curve(self, curve):
        curve.setModel(self.model)
        curve.setBufferSize(self.maxBufferSize)
        #the stackMode is directly used from the param, so there is no need to update
        