# /*##########################################################################
#
# Copyright (c) 2018 European Synchrotron Radiation Facility
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__authors__ = ["T. Vincent"]
__license__ = "MIT"
__date__ = "02/08/2018"


from silx.gui import qt
from silx.utils.testutils import ParametricTestCase
from silx.gui.utils.testutils import TestCaseQt
from silx.gui.plot import PlotWindow
from silx.gui.plot.tools import CurveLegendsWidget


class TestCurveLegendsWidget(TestCaseQt, ParametricTestCase):
    """Tests for CurveLegendsWidget class"""

    def setUp(self):
        super(TestCurveLegendsWidget, self).setUp()
        self.plot = PlotWindow()

        self.legends = CurveLegendsWidget.CurveLegendsWidget()
        self.legends.setPlotWidget(self.plot)

        dock = qt.QDockWidget()
        dock.setWindowTitle("Curve Legends")
        dock.setWidget(self.legends)
        self.plot.addTabbedDockWidget(dock)

        self.plot.show()
        self.qWaitForWindowExposed(self.plot)

    def tearDown(self):
        del self.legends
        self.qapp.processEvents()
        self.plot.setAttribute(qt.Qt.WA_DeleteOnClose)
        self.plot.close()
        del self.plot
        super(TestCurveLegendsWidget, self).tearDown()

    def _assertNbLegends(self, count):
        """Check the number of legends in the CurveLegendsWidget"""
        children = self.legends.findChildren(CurveLegendsWidget._LegendWidget)
        self.assertEqual(len(children), count)

    def testAddRemoveCurves(self):
        """Test CurveLegendsWidget while adding/removing curves"""
        self.plot.addCurve((0, 1), (1, 2), legend="a")
        self._assertNbLegends(1)
        self.plot.addCurve((0, 1), (2, 3), legend="b")
        self._assertNbLegends(2)

        # Detached/attach
        self.legends.setPlotWidget(None)
        self._assertNbLegends(0)

        self.legends.setPlotWidget(self.plot)
        self._assertNbLegends(2)

        self.plot.clear()
        self._assertNbLegends(0)

    def testUpdateCurves(self):
        """Test CurveLegendsWidget while updating curves"""
        self.plot.addCurve((0, 1), (1, 2), legend="a")
        self._assertNbLegends(1)
        self.plot.addCurve((0, 1), (2, 3), legend="b")
        self._assertNbLegends(2)

        # Activate curve
        self.plot.setActiveCurve("a")
        self.qapp.processEvents()
        self.plot.setActiveCurve("b")
        self.qapp.processEvents()

        # Change curve style
        curve = self.plot.getCurve("a")
        curve.setLineWidth(2)
        for linestyle in (
            ":",
            "",
            "--",
            "-",
            (0.0, (5.0, 5.0)),
            (5.0, (10.0, 2.0, 2.0, 5.0)),
        ):
            with self.subTest(linestyle=linestyle):
                curve.setLineStyle(linestyle)
                self.qapp.processEvents()
                self.qWait(1000)

        for symbol in ("o", "d", "", "s"):
            with self.subTest(symbol=symbol):
                curve.setSymbol(symbol)
                self.qapp.processEvents()
                self.qWait(1000)
