# coding: utf-8 # /*########################################################################## # Copyright (C) 2016-2018 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. # # ############################################################################*/ """Context shared through all the application""" __authors__ = ["V. Valls"] __license__ = "MIT" __date__ = "16/05/2019" import logging import numpy import json import os.path from silx.gui import qt from silx.gui.dialog.ColormapDialog import ColormapDialog from silx.gui.colors import Colormap import silx.resources from .model.CalibrationModel import CalibrationModel from .model.DataModel import DataModel from .utils import eventutils from .utils import units from .utils import colorutils from .ApplicationContext import ApplicationContext _logger = logging.getLogger(__name__) class CalibrationContext(ApplicationContext): __instance = None @staticmethod def _releaseSingleton(): ApplicationContext._releaseSingleton() CalibrationContext.__instance = None @staticmethod def instance(): """ :rtype: CalibrationContext """ assert(CalibrationContext.__instance is not None) return CalibrationContext.__instance def __init__(self, settings=None): super(CalibrationContext, self).__init__(settings=settings) assert(CalibrationContext.__instance is None) self.__defaultColormapDialog = None CalibrationContext.__instance = self self.__calibrationModel = None self.__rawColormap = Colormap("inferno", normalization=Colormap.LOGARITHM) self.__settings = settings self.__angleUnit = DataModel() self.__angleUnit.setValue(units.Unit.RADIAN) self.__lengthUnit = DataModel() self.__lengthUnit.setValue(units.Unit.METER) self.__wavelengthUnit = DataModel() self.__wavelengthUnit.setValue(units.Unit.ANGSTROM) self.__scatteringVectorUnit = DataModel() self.__scatteringVectorUnit.setValue(units.Unit.INV_ANGSTROM) self.__markerColors = {} self.__cacheStyles = {} self.sigStyleChanged = self.__rawColormap.sigChanged def __restoreColormap(self, groupName, colormap): settings = self.__settings if settings is None: _logger.debug("Settings not set") return settings.beginGroup(groupName) byteArray = settings.value("default", None) if byteArray is not None: try: colormap.restoreState(byteArray) except Exception: _logger.debug("Backtrace", exc_info=True) settings.endGroup() def __saveColormap(self, groupName, colormap): settings = self.__settings if settings is None: _logger.debug("Settings not set") return if colormap is None: return settings.beginGroup(groupName) settings.setValue("default", colormap.saveState()) settings.endGroup() def __restoreUnit(self, unitModel, settings, fieldName, defaultUnit): unitName = settings.value(fieldName, None) unit = None if unitName is not None: try: unit = getattr(units.Unit, unitName) if not isinstance(unit, units.Unit): unit = None except Exception: _logger.error("Unit name '%s' is not an unit", unitName) unit = None if unit is None: unit = defaultUnit unitModel.setValue(unit) def restoreSettings(self): """Restore the settings of all the application""" settings = self.__settings if settings is None: _logger.debug("Settings not set") return self.__restoreColormap("raw-colormap", self.__rawColormap) settings.beginGroup("units") self.__restoreUnit(self.__angleUnit, settings, "angle-unit", units.Unit.RADIAN) self.__restoreUnit(self.__lengthUnit, settings, "length-unit", units.Unit.METER) self.__restoreUnit(self.__wavelengthUnit, settings, "wavelength-unit", units.Unit.ANGSTROM) self.__restoreUnit(self.__scatteringVectorUnit, settings, "scattering-vector-unit", units.Unit.INV_ANGSTROM) settings.endGroup() def saveSettings(self): """Save the settings of all the application""" settings = self.__settings if settings is None: _logger.debug("Settings not set") return self.__saveColormap("raw-colormap", self.__rawColormap) settings.beginGroup("units") settings.setValue("angle-unit", self.__angleUnit.value().name) settings.setValue("length-unit", self.__lengthUnit.value().name) settings.setValue("wavelength-unit", self.__wavelengthUnit.value().name) settings.setValue("scattering-vector-unit", self.__scatteringVectorUnit.value().name) settings.endGroup() # Synchronize the file storage super(CalibrationContext, self).saveSettings() def getCalibrationModel(self): if self.__calibrationModel is None: self.__calibrationModel = CalibrationModel() return self.__calibrationModel def getRawColormap(self): """Returns the user preference colormap used to display raw data images :rtype: Colormap """ return self.__rawColormap def getColormapDialog(self): """Returns a shared color dialog. :rtype: ColorDialog """ if self.__defaultColormapDialog is None: parent = self.parent() if parent is None: return None dialog = ColormapDialog(parent=parent) dialog.setModal(False) def dialogShown(): dialog = self.__defaultColormapDialog self.restoreWindowLocationSettings("colormap-dialog", dialog) # Sync with the raw image data = self.getCalibrationModel().experimentSettingsModel().image().value() dialog.setData(data) def dialogHidden(): dialog = self.__defaultColormapDialog self.saveWindowLocationSettings("colormap-dialog", dialog) eventutils.createShowSignal(dialog) eventutils.createHideSignal(dialog) dialog.sigShown.connect(dialogShown) dialog.sigHidden.connect(dialogHidden) self.__defaultColormapDialog = dialog return self.__defaultColormapDialog def getAngleUnit(self): return self.__angleUnit def getLengthUnit(self): return self.__lengthUnit def getWavelengthUnit(self): return self.__wavelengthUnit def getScatteringVectorUnit(self): return self.__scatteringVectorUnit def getMarkerColor(self, index, mode="qt"): colors = self.markerColorList() color = colors[index % len(colors)] if mode == "html": return "#%02X%02X%02X" % (color.red(), color.green(), color.blue()) elif mode == "numpy": return numpy.array([color.redF(), color.greenF(), color.blueF()]) elif mode == "qt": return color else: raise ValueError("Mode '%s' not expected" % mode) def getLabelColor(self): """Returns the Qt color used to display text label :rtype: qt.QColor """ markers = self.markerColorList() color = markers[0] return color def getMaskedColor(self): """Returns the Qt color used to display masked pixels :rtype: qt.QColor """ return qt.QColor(255, 0, 255) def getBackgroundColor(self): """Returns the Qt color used to display part of the diagram outside of the data. :rtype: qt.QColor """ colors = self.__rawColormap.getNColors() color = colors[0] color = 255 - ((255 - color) // 2) color = int(color.mean()) color = [color, color, color] return qt.QColor(color[0], color[1], color[2]) def _getStyle(self, name): style = self.__cacheStyles.get(name, None) if style is None: resource = "pyfai:/gui/styles/%s.json" % name path = silx.resources.resource_filename(resource) if os.path.exists(path): try: with open(path) as fp: style = json.load(fp) except Exception as e: _logger.debug("Backtrace", exc_info=True) _logger.error(e) style = {} else: _logger.debug("Resource %s not found", resource) style = {} self.__cacheStyles[name] = style return style def getCurrentStyle(self): colormap = self.getRawColormap() name = colormap['name'] style = self._getStyle(name) return style def getHtmlMarkerColor(self, index): colors = self.markerColorList() color = colors[index % len(colors)] "#%02X%02X%02X" % (color.red(), color.green(), color.blue()) def disabledMarkerColor(self): style = self.getCurrentStyle() color = style.get("disabled-marker", None) if color is None: color = [128, 128, 128] return qt.QColor(*color) def markerColorList(self): colormap = self.getRawColormap() name = colormap['name'] if name not in self.__markerColors: style = self.getCurrentStyle() if "markers" in style: colors = [] for c in style["markers"]: c = qt.QColor(c[0], c[1], c[2]) colors.append(c) else: colors = self.createMarkerColors() self.__markerColors[name] = colors else: colors = self.__markerColors[name] return colors def createMarkerColors(self): colormap = self.getRawColormap() return colorutils.getFreeColorRange(colormap)