#/*##########################################################################
# Copyright (C) 2004-2022 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF.
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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"""The :class:`Hdf5NodeView` widget in this module aims to replace
:class:`HDF5DatasetTable` in :class:`QNexusWidget` for visualization of HDF5
datasets and groups, with support of NXdata groups as plot.

It uses the silx :class:`DataViewerFrame` widget with views modified
to handle plugins."""
__author__ = "P. Knobel - ESRF Data Analysis"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"


import os

import PyMca5
from PyMca5.PyMcaGui import PyMcaQt as qt
from PyMca5.PyMcaGui.misc import CloseEventNotifyingWidget

from PyMca5.PyMcaGui.PluginsToolButton import PluginsToolButton

import silx
from silx.gui.data.DataViewerFrame import DataViewerFrame
from silx.gui.data.DataViewer import DataViewer
from silx.gui.data import DataViews
from silx.gui.data import NXdataWidgets
from silx.gui.plot import Plot1D, Plot2D
from silx.gui import icons



PLUGINS_DIR = []
if os.path.exists(os.path.join(os.path.dirname(PyMca5.__file__), "PyMcaPlugins")):
    from PyMca5 import PyMcaPlugins
    PLUGINS_DIR.append(os.path.dirname(PyMcaPlugins.__file__))
else:
    directory = os.path.dirname(__file__)
    while True:
        if os.path.exists(os.path.join(directory, "PyMcaPlugins")):
            PLUGINS_DIR.append(os.path.join(directory, "PyMcaPlugins"))
            break
        directory = os.path.dirname(directory)
        if len(directory) < 5:
            break

userPluginsDirectory = PyMca5.getDefaultUserPluginsDirectory()
if userPluginsDirectory is not None:
    PLUGINS_DIR.append(userPluginsDirectory)


class Plot1DWithPlugins(Plot1D):
    """Add a plugin toolbutton to a Plot1D"""
    def __init__(self, parent=None):
        Plot1D.__init__(self, parent)
        self._plotType = "SCAN"    # needed by legacy plugins

        self._toolbar = qt.QToolBar(self)
        self.addToolBar(self._toolbar)
        pluginsToolButton = PluginsToolButton(plot=self, parent=self)

        if PLUGINS_DIR:
            pluginsToolButton.getPlugins(
                    method="getPlugin1DInstance",
                    directoryList=PLUGINS_DIR)
        self._toolbar.addWidget(pluginsToolButton)


class Plot1DViewWithPlugins(DataViews._Plot1dView):
    """Overload Plot1DView to use the widget with a
    :class:`PluginsToolButton`"""
    def createWidget(self, parent):
        return Plot1DWithPlugins(parent=parent)


class Plot2DWithPlugins(Plot2D):
    """Add a plugin toolbutton to a Plot2D"""
    def __init__(self, parent=None):
        Plot2D.__init__(self, parent)

        self._toolbar = qt.QToolBar(self)
        self.addToolBar(self._toolbar)
        pluginsToolButton = PluginsToolButton(plot=self, parent=self,
                                              method="getPlugin2DInstance")

        if PLUGINS_DIR:
            pluginsToolButton.getPlugins(
                    method="getPlugin2DInstance",
                    directoryList=PLUGINS_DIR)
        self._toolbar.addWidget(pluginsToolButton)
        if hasattr(self, "getIntensityHistogramAction"):
            self.getIntensityHistogramAction().setVisible(True)
        else:
            print("Plot2D getIntensityHistogramAction missing")


class Plot2DViewWithPlugins(DataViews._Plot2dView):
    def createWidget(self, parent):
        widget = Plot2DWithPlugins(parent=parent)
        widget.setDefaultColormap(self.defaultColormap())
        widget.getColormapAction().setColorDialog(self.defaultColorDialog())
        widget.setKeepDataAspectRatio(False)
        widget.getXAxis().setLabel('X')
        widget.getYAxis().setLabel('Y')
        return widget

class ArrayCurvePlotWithPlugins(NXdataWidgets.ArrayCurvePlot):
    """Adds a plugin toolbutton to an ArrayCurvePlot widget"""
    def __init__(self, parent=None):
        NXdataWidgets.ArrayCurvePlot.__init__(self, parent)

        # patch the Plot1D to make it compatible with plugins
        self._plot._plotType = "SCAN"

        self._toolbar = qt.QToolBar(self)
        self._plot.addToolBar(self._toolbar)
        pluginsToolButton = PluginsToolButton(plot=self._plot,
                                              parent=self)
        if PLUGINS_DIR:
            pluginsToolButton.getPlugins(
                    method="getPlugin1DInstance",
                    directoryList=PLUGINS_DIR)
        self._toolbar.addWidget(pluginsToolButton)


class NXdataCurveViewWithPlugins(DataViews._NXdataCurveView):
    """Use the widget with a :class:`PluginsToolButton`"""
    def createWidget(self, parent):
        return ArrayCurvePlotWithPlugins(parent=parent)


class ArrayImagePlotWithPlugins(NXdataWidgets.ArrayImagePlot):
    """Adds a plugin toolbutton to an ArrayImagePlot widget"""
    def __init__(self, parent=None):
        NXdataWidgets.ArrayImagePlot.__init__(self, parent)

        self._toolbar = qt.QToolBar(self)
        self.getPlot().addToolBar(self._toolbar)
        pluginsToolButton = PluginsToolButton(plot=self.getPlot(),
                                              parent=self,
                                              method="getPlugin2DInstance")
        if PLUGINS_DIR:
            pluginsToolButton.getPlugins(
                    method="getPlugin2DInstance",
                    directoryList=PLUGINS_DIR)
        self._toolbar.addWidget(pluginsToolButton)


class NXdataImageViewWithPlugins(DataViews._NXdataImageView):
    """Use the widget with a :class:`PluginsToolButton`"""
    def createWidget(self, parent):
        widget = ArrayImagePlotWithPlugins(parent)
        widget.getPlot().setDefaultColormap(self.defaultColormap())
        widget.getPlot().getColormapAction().setColorDialog(self.defaultColorDialog())
        return widget


class Hdf5NodeView(CloseEventNotifyingWidget.CloseEventNotifyingWidget):
    """QWidget displaying data as raw values in a table widget, or as a
    curve, image or stack in a plot widget. It can also display information
    related to HDF5 groups (attributes, compression, ...) and interpret
    a NXdata group to plot its data.

    The plot features depend on *silx*'s availability.
    """
    def __init__(self, parent=None):
        CloseEventNotifyingWidget.CloseEventNotifyingWidget.__init__(self,
                                                                     parent)
        self.mainLayout = qt.QVBoxLayout(self)
        self.mainLayout.setContentsMargins(0, 0, 0, 0)
        self.mainLayout.setSpacing(0)

        self.viewWidget = DataViewerFrame(self)
        self.viewWidget.replaceView(DataViews.PLOT1D_MODE,
                                    Plot1DViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.PLOT2D_MODE,
                                    Plot2DViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.NXDATA_CURVE_MODE,
                                    NXdataCurveViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.NXDATA_IMAGE_MODE,
                                    NXdataImageViewWithPlugins(self))

        self.mainLayout.addWidget(self.viewWidget)

    def setData(self, dataset):
        self.viewWidget.setData(dataset)


class Hdf5NodeViewer(CloseEventNotifyingWidget.CloseEventNotifyingWidget):
    """QWidget displaying data as raw values in a table widget, or as a
    curve, image or stack in a plot widget. It can also display information
    related to HDF5 groups (attributes, compression, ...) and interpret
    a NXdata group to plot its data.

    The plot features depend on *silx*'s availability.
    """
    def __init__(self, parent=None):
        CloseEventNotifyingWidget.CloseEventNotifyingWidget.__init__(self,
                                                                     parent)
        self.mainLayout = qt.QVBoxLayout(self)
        self.mainLayout.setContentsMargins(0, 0, 0, 0)
        self.mainLayout.setSpacing(0)

        self.viewWidget = DataViewer(self)
        self.viewWidget.replaceView(DataViews.PLOT1D_MODE,
                                    Plot1DViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.PLOT2D_MODE,
                                    Plot2DViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.NXDATA_CURVE_MODE,
                                    NXdataCurveViewWithPlugins(self))
        self.viewWidget.replaceView(DataViews.NXDATA_IMAGE_MODE,
                                    NXdataImageViewWithPlugins(self))

        self.mainLayout.addWidget(self.viewWidget)

    def setData(self, dataset):
        self.viewWidget.setData(dataset)

