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# 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.
#
# ###########################################################################*/
__authors__ = ["V. Valls"]
__license__ = "MIT"
__date__ = "16/10/2020"
import logging
import numpy
import os.path
from silx.gui import qt
from silx.gui.colors import Colormap
from ..utils import imageutils
_logger = logging.getLogger(__name__)
class CalibrantPreview(qt.QFrame):
"""
CalibrantPreview show the rays of a calibrat at a wayvelength between 0
and Pi.
"""
_PIXMAP_OFFSET = 2
def __init__(self, parent=None):
super(CalibrantPreview, self).__init__(parent)
self.__calibrant = None
self.__waveLength = None
self.__pixmap = None
self.__cachedSize = None
self.setMinimumSize(qt.QSize(50, 20))
def setCalibrant(self, calibrant):
if self.__calibrant is calibrant:
return
self.__calibrant = calibrant
self.__pixmap = None
self.__updateToolTip()
self.repaint()
def setWaveLength(self, waveLength):
if self.__waveLength == waveLength:
return
self.__waveLength = waveLength
self.__pixmap = None
self.__updateToolTip()
self.repaint()
def getCalibrant(self):
return self.__pixmap
def __getConfiguredCalibrant(self):
calibrant = self.__calibrant
if calibrant is None:
return None
waveLenght = self.__waveLength
if waveLenght is None:
return None
calibrant.setWavelength_change2th(waveLenght)
return calibrant
def __updateToolTip(self):
calibrant = self.__getConfiguredCalibrant()
if calibrant is None:
return
name = calibrant.filename
if name is not None:
name = os.path.basename(name)
if name.endswith(".D"):
name = name[0:-2]
fileds = []
if name is not None:
fileds.append((u"Name", name, None))
fileds.append((u"Nb registered rays", calibrant.count_registered_dSpacing(), None))
dSpacing = calibrant.get_dSpacing()
fileds.append((u"Nb visible rays", len(dSpacing), u"between 0 and 180°"))
if len(dSpacing) > 0:
ray = calibrant.get_dSpacing()[0]
angle = calibrant.get_2th()[0]
fileds.append((u"First visible ray", u"%f Å (%f°)" % (ray, numpy.rad2deg(angle)), None))
ray = calibrant.get_dSpacing()[-1]
angle = calibrant.get_2th()[-1]
fileds.append((u"Last visible ray", u"%f Å (%f°)" % (ray, numpy.rad2deg(angle)), None))
toolTip = []
for f in fileds:
field_name, field_value, suffix = f
field = u"<li><b>%s</b>: %s</li>" % (field_name, field_value)
if suffix is not None:
field = u"%s (%s)" % (field, suffix)
toolTip.append(field)
toolTip = u"\n".join(toolTip)
toolTip = u"<html><ul>%s</ul></html>" % toolTip
self.setToolTip(toolTip)
def __getPixmap(self, size=360):
if self.__pixmap is not None and self.__cachedSize == size:
return self.__pixmap
calibrant = self.__getConfiguredCalibrant()
if calibrant is None:
return None
tths = numpy.array(calibrant.get_2th())
tth_min, tth_max = 0, numpy.pi
histo = numpy.histogram(tths, bins=size, range=(tth_min, tth_max))
agregation = histo[0].reshape(1, -1)
colormap = Colormap(name="reversed gray", vmin=agregation.min(), vmax=agregation.max())
rgbImage = colormap.applyToData(agregation)[:, :, :3]
qimage = imageutils.convertArrayToQImage(rgbImage)
qpixmap = qt.QPixmap.fromImage(qimage)
self.__pixmap = qpixmap
self.__cachedSize = size
return self.__pixmap
def paintEvent(self, event):
super(CalibrantPreview, self).paintEvent(event)
painter = qt.QPainter(self)
# border
option = qt.QStyleOptionProgressBar()
option.initFrom(self)
option.rect = self.rect()
option.state = qt.QStyle.State_Enabled if self.isEnabled() else qt.QStyle.State_None
style = qt.QApplication.style()
style.drawControl(qt.QStyle.CE_ProgressBarGroove,
option,
painter,
self)
# content
pixmapRect = self.rect().adjusted(self._PIXMAP_OFFSET, self._PIXMAP_OFFSET,
-self._PIXMAP_OFFSET, -self._PIXMAP_OFFSET)
pixmap = self.__getPixmap(size=pixmapRect.width())
if pixmap is not None:
painter.drawPixmap(pixmapRect,
pixmap,
pixmap.rect())
def sizeHint(self):
return qt.QSize(200, self.minimumHeight())
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