displayComponentsWidget.py 12.8 KB
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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2017-2019 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/


__authors__ = ["J. Garriga"]
__license__ = "MIT"
__date__ = "07/02/2020"

import numpy

from silx.gui import qt
from silx.gui import icons
from silx.gui.colors import Colormap
from silx.gui.plot import ScatterView, StackView, Plot1D
from silx.gui.widgets.FrameBrowser import HorizontalSliderWithBrowser

import darfix
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from darfix.io.utils import write_components
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class DisplayComponentsWidget(qt.QMainWindow):
    """
    Widget to apply blind source separation.
    """

    def __init__(self, parent=None):
        qt.QMainWindow.__init__(self, parent)

        # Widget with the type of bss and the number of components to compute
        widget = qt.QWidget(self)
        self._sv_components = StackView(parent=self)
        self._sv_components.setColormap(Colormap(
            name=darfix.config.DEFAULT_COLORMAP_NAME,
            normalization='linear',
            vmin=None,
            vmax=None))
        self._sv_components.setGraphTitle("Components")
        self._sv_components.sigFrameChanged.connect(self._setCurve)

        self._plot_rocking_curves = PlotRockingCurves()
        self._plot_rocking_curves.sigFrameChanged.connect(self._updateFrameNumber)
        self._plot_rocking_curves.sigMotorChanged.connect(self._updateMotorAxis)
        self._plot_rocking_curves.sigActiveCurveChanged.connect(self._activeCurveChanged)

        self._scatter_rocking_curves = ScatterView()
        self._scatter_rocking_curves.hide()

        self._toolbar = qt.QToolBar(parent=self)
        self._toolbar.setIconSize(self._toolbar.iconSize() * 1.2)
        curves_icon = icons.getQIcon('darfix:gui/icons/curves')
        scatter_icon = icons.getQIcon('darfix:gui/icons/scatter')
        self.curves_action = qt.QAction(curves_icon, "Curves", self)
        self.curves_action.setCheckable(True)
        self.curves_action.setChecked(True)
        self.colormap_action = qt.QAction(scatter_icon, "Scatter", self)
        self.colormap_action.setCheckable(True)
        self.curves_action.toggled.connect(self._activateCurvesPlot)
        self.colormap_action.triggered.connect(self.curves_action.toggle)
        self._toolbar.addAction(self.curves_action)
        self._toolbar.addAction(self.colormap_action)
        self._toolbar.setOrientation(qt.Qt.Vertical)
        self._toolbar.hide()

        self.bottom_widget = qt.QWidget(self)
        layout = qt.QGridLayout()
        componentsLabel = qt.QLabel("Components")
        rockingCurvesLabel = qt.QLabel("Rocking curves")
        font = qt.QFont()
        font.setBold(True)
        componentsLabel.setFont(font)
        rockingCurvesLabel.setFont(font)
        layout.addWidget(componentsLabel, 1, 0, 1, 2, qt.Qt.AlignCenter)
        layout.addWidget(rockingCurvesLabel, 1, 3, 1, 2, qt.Qt.AlignCenter)
        layout.addWidget(self._sv_components, 2, 0, 2, 2)
        layout.addWidget(self._plot_rocking_curves, 2, 3, 2, 2)
        layout.addWidget(self._scatter_rocking_curves, 2, 3, 2, 2)
        layout.addWidget(self._toolbar, 2, 5, 2, 1)
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        self.saveB = qt.QPushButton("Save components")
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        self.saveB.pressed.connect(self._saveComp)
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        layout.addWidget(self.saveB, 4, 4, 1, -1)
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        widget.setLayout(layout)
        self.setCentralWidget(widget)

    def hideButton(self):
        self._computeB.hide()

    def showButton(self):
        self._computeB.show()

    def setComponents(self, components, W, dimensions):
        """
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        Components setter. Updates the plots with the components and their
        corresponding rocking curves.
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        :param array_like components: stack of images with the components
        :param array_like W: array with the rocking curves intensity
        :param dict dimensions: dictionary with the values of the dimensions
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        """
        self.components = components
        self.W = W
        self.dimensions = dimensions
        self._activateCurvesPlot(True)
        self._sv_components.setStack(self.components)
        self._plot_rocking_curves.getPlot().clear()
        self._plot_rocking_curves.getPlot().setGraphYLabel("Values")
        for i in range(len(self.W.T)):
            self._plot_rocking_curves.getPlot().addCurve(numpy.arange(len(self.W.T[i])),
                                                         self.W.T[i], legend=str(i))
        if self.dimensions:
            colormap = Colormap(name='jet', normalization='linear')
            keys = list(self.dimensions.keys())
            self._scatter_rocking_curves.getPlotWidget().setGraphXLabel(keys[0])
            self._scatter_rocking_curves.getPlotWidget().setGraphYLabel(keys[1])
            self._scatter_rocking_curves.setData(
                self.dimensions[keys[0]].astype(numpy.float),
                self.dimensions[keys[1]].astype(numpy.float), self.W.T[0])
            self._scatter_rocking_curves.setColormap(colormap)
            self._scatter_rocking_curves.resetZoom()

            self._plot_rocking_curves.showMotors(True)
            self._toolbar.show()
            self._plot_rocking_curves.resetDimensions()
            # Motor dimension and index
            self.dimension = 0
            self.index = 0
            for dimension in self.dimensions:
                self._plot_rocking_curves.addDimension(dimension)
        else:
            self._plot_rocking_curves.showMotors(False)
            self._toolbar.hide()

        self._plot_rocking_curves.getPlot().setActiveCurve("0")

    def _activateCurvesPlot(self, checked=False):
        if checked:
            self.colormap_action.setChecked(False)
            self._scatter_rocking_curves.hide()
            self._plot_rocking_curves.show()
        else:
            self._plot_rocking_curves.hide()
            self._scatter_rocking_curves.show()

    def _saveComp(self):
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        """
        Loads the file from a FileDialog.
        """
        fileDialog = qt.QFileDialog()

        fileDialog.setFileMode(fileDialog.AnyFile)
        fileDialog.setAcceptMode(fileDialog.AcceptSave)
        fileDialog.setOption(fileDialog.DontUseNativeDialog)
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        fileDialog.setDefaultSuffix(".h5")
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        if fileDialog.exec_():
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            write_components(fileDialog.selectedFiles()[0], 'entry',
                             self.dimensions, self.W, self.components, 1)
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    def _activeCurveChanged(self, prev_legend=None, legend=None):
        if legend:
            self._setComponent(int(legend))

    def _setComponent(self, index=None):
        if index is not None:
            status = self._sv_components.blockSignals(True)
            self._sv_components.setFrameNumber(index)
            self._sv_components.blockSignals(status)
            values = numpy.array(list(self.dimensions.values())).astype(numpy.float)
            if self.dimensions:
                self._scatter_rocking_curves.setData(values[0], values[1], self.W.T[index])

    def _setCurve(self, index=-1):
        if index >= 0:
            status = self._plot_rocking_curves.blockSignals(True)
            self._plot_rocking_curves.getPlot().setActiveCurve(str(index))
            self._plot_rocking_curves.blockSignals(status)
            values = numpy.array(list(self.dimensions.values())).astype(numpy.float)
            if self.dimensions:
                self._scatter_rocking_curves.setData(values[0], values[1], self.W.T[index])

    def _updateMotorAxis(self, axis=-1):
        """
        Updates the motor to show the rocking curve from.

        :param int axis: 0 if no motor is chosen, else axis of the motor.
        """
        if axis == 0:
            self._plot_rocking_curves.getPlot().setGraphYLabel("Values")
            # Whole rocking curves are showed
            self._plot_rocking_curves.clear()
            for i in range(len(self.W.T)):
                self._plot_rocking_curves.addCurve(numpy.arange(len(self.W.T[i])), self.W.T[i], legend=str(i))
            self._plot_rocking_curves.getBrowser().setEnabled(False)
        elif axis != -1 and axis is not None:
            text = self._plot_rocking_curves.getDimensionsCB().currentText()
            self._plot_rocking_curves.getPlot().setGraphYLabel(text)
            self.dimension = axis - 1
            self._plot_rocking_curves.clear()
            self._plot_rocking_curves.getBrowser().setEnabled(True)
            self._plot_rocking_curves.getBrowser().setRange(0, len(self.dimensions[text]) - 1)
            self._plot_rocking_curves.getBrowser().setValue(0)
            for i in range(len(self.W.T)):
                dimensions_shape = numpy.array(self.dimensions.values()).shape
                W = numpy.take(self.W.T[i].reshape(dimensions_shape), self.index, self.dimension)
                self._plot_rocking_curves.addCurve(numpy.arange(len(W)), W, legend=str(i))
        else:
            raise ValueError('Axis %s is not managed' % axis)

    def _updateFrameNumber(self, index):
        """Update the current plot.

        :param index: index of the frame to be displayed
        """
        self.index = index
        self._plot_rocking_curves.clear()
        for i in range(len(self.W.T)):
            dimensions_shape = numpy.array(self.dimensions.values()).shape
            W = numpy.take(self.W.T[i].reshape(dimensions_shape), self.index, self.dimension)
            self._plot_rocking_curves.addCurve(numpy.arange(len(W)), W, legend=str(i))


class PlotRockingCurves(qt.QMainWindow):
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    """
    Widget to plot the rocking curves of the components. It can be filtered
    to show only the rocking curves of a certain moving dimension.
    """
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    sigFrameChanged = qt.Signal(int)
    sigMotorChanged = qt.Signal(int)
    sigActiveCurveChanged = qt.Signal(object, object)

    def __init__(self, parent=None):
        qt.QMainWindow.__init__(self, parent)

        self._plot = Plot1D()
        self._plot.setGraphTitle("Rocking curves")
        self._plot.setGraphXLabel("Image id")
        self._plot.sigActiveCurveChanged.connect(self.sigActiveCurveChanged)

        self._motors = qt.QWidget()
        self._motors.setLayout(self._motorsLayout())
        self._motors.hide()
        layout = qt.QVBoxLayout()
        layout.addWidget(self._plot)
        layout.addWidget(self._motors)

        centralWidget = qt.QWidget()
        centralWidget.setLayout(layout)
        self.setCentralWidget(centralWidget)

        self.addCurve = self._plot.addCurve

    def _motorsLayout(self):
        # If dataset data is reshaped
        # Creates widget to move through the motors dimensions
        layout = qt.QHBoxLayout()
        cb_label = qt.QLabel("Static motor:")
        self._cb = qt.QComboBox()
        self._cb.setCurrentIndex(0)
        # Default: all of the rocking curves are shown
        self._cb.addItem("None")
        browser_label = qt.QLabel("Motor index:")
        self._browser = HorizontalSliderWithBrowser()
        self._browser.setRange(0, 0)
        # Browser only activated with choosen dimension
        self._browser.setEnabled(False)

        # Connect browser
        self._browser.valueChanged[int].connect(self.sigFrameChanged)
        # Connect combobox
        self._cb.currentIndexChanged.connect(self.sigMotorChanged)

        layout.addWidget(cb_label)
        layout.addWidget(self._cb)
        layout.addWidget(browser_label)
        layout.addWidget(self._browser)

        return layout

    def getPlot(self):
        return self._plot

    def getBrowser(self):
        return self._browser

    def getDimensionsCB(self):
        return self._cb

    def clear(self):
        self._plot.clear()

    def showMotors(self, show=True):
        self._motors.setVisible(show)

    def addDimension(self, dimension):
        self._cb.addItem(dimension)

    def resetDimensions(self):
        for i in range(1, self._cb.count()):
            self._cb.removeItem(i)