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#!/usr/bin/env python
#############################################################################
##
# This file is part of Taurus
##
# http://taurus-scada.org
##
# 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/>.
##
#############################################################################
"""Example on using a tpg.TaurusTrendSet and some related tools
on a pure pyqtgraph plot"""
if __name__ == "__main__":
import sys
from taurus.qt.qtgui.application import TaurusApplication
from taurus_pyqtgraph import (
TaurusTrendSet,
DateAxisItem,
XAutoPanTool,
ForcedReadTool,
)
import pyqtgraph as pg
from taurus.core.taurusmanager import TaurusManager
taurusM = TaurusManager()
taurusM.changeDefaultPollingPeriod(1000) # ms
app = TaurusApplication()
# Add a date-time X axis
axis = DateAxisItem(orientation="bottom")
w = pg.PlotWidget()
axis.attachToPlotItem(w.getPlotItem())
# Add the auto-pan ("oscilloscope mode") tool
autopan = XAutoPanTool()
autopan.attachToPlotItem(w.getPlotItem())
# Add Forced-read tool
fr = ForcedReadTool(w, period=1000)
fr.attachToPlotItem(w.getPlotItem())
# add legend the legend tool
w.addLegend()
# adding a taurus data item...
c2 = TaurusTrendSet(name="foo")
c2.setModel("eval:rand(2)")
w.addItem(c2)
w.show()
sys.exit(app.exec_())
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