Source code for sas.qtgui.Perspectives.Fitting.ReportPageLogic
# -*- coding: utf-8 -*-
import base64
import datetime
import re
import sys
import tempfile
import logging
from io import BytesIO
import urllib.parse
from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
import sas.qtgui.Utilities.GuiUtils as GuiUtils
[docs]class ReportPageLogic(object):
"""
Logic for the Report Page functionality. Refactored from FittingWidget.
"""
def __init__(self, parent=None, kernel_module=None, data=None, index=None, params=None):
self.parent = parent
self.kernel_module = kernel_module
self.data = data
self._index = index
self.params = params
[docs] @staticmethod
def cleanhtml(raw_html):
"""Remove html tags from a document"""
cleanr = re.compile('<.*?>')
cleantext = re.sub(cleanr, '', raw_html)
return cleantext
[docs] def reportList(self):
"""
Return the HTML version of the full report
"""
if self.kernel_module is None:
report_txt = "No model defined"
report_html = HEADER % report_txt
images = []
return [report_html, report_txt, images]
# Get plot image from plotpanel
images = self.getImages()
imagesHTML = ""
if images is not None:
imagesHTML = self.buildPlotsForReport(images)
report_header = self.reportHeader()
report_parameters = self.reportParams()
report_html = report_header + report_parameters + imagesHTML
report_txt = self.cleanhtml(report_html)
report_list = [report_html, report_txt, images]
return report_list
[docs] def buildPlotsForReport(self, images):
""" Convert Matplotlib figure 'fig' into a <img> tag for HTML use using base64 encoding. """
html = FEET_1 % self.data.filename
for fig in images:
canvas = FigureCanvas(fig)
png_output = BytesIO()
try:
if sys.platform == "darwin":
fig.savefig(png_output, format="png", dpi=150)
else:
fig.savefig(png_output, format="png", dpi=75)
except PermissionError as ex:
logging.error("Creating of the report failed: %s"%str(ex))
return
data64 = base64.b64encode(png_output.getvalue())
data_to_print = urllib.parse.quote(data64)
feet = FEET_2
if sys.platform == "darwin": # Mac
feet = FEET_3
html += feet.format(data_to_print)
html += ELINE
png_output.close()
del canvas
return html
[docs] def reportParams(self):
"""
Look at widget state and extract parameters
"""
if self.params is None:
return ""
report = ""
plus_minus = " ± "
for value in self.params:
try:
par_name = value[1]
par_fixed = not value[0]
par_value = value[2]
par_unit = value[7]
# Convert units for nice display
par_unit = GuiUtils.convertUnitToHTML(par_unit.strip())
if par_fixed:
error = " (fixed)"
else:
error = plus_minus + str(value[4][1])
param = par_name + " = " + par_value + error + " " + par_unit
except IndexError as ex:
# corrupted model. Complain and skip the line
logging.error("Error in parsing parameters: "+str(ex))
continue
report += CENTRE % param + "\n"
return report
[docs] def getImages(self):
"""
Create MPL figures for the current fit
"""
graphs = []
modelname = self.kernel_module.name
if not modelname or self._index is None:
return None
plot_ids = [plot.id for plot in GuiUtils.plotsFromModel(modelname, self._index)]
# Active plots
import sas.qtgui.Plotting.PlotHelper as PlotHelper
shown_plot_names = PlotHelper.currentPlots()
# current_plots = list of graph names of currently shown plots
# which are related to this dataset
current_plots = [name for name in shown_plot_names if PlotHelper.plotById(name).data[0].id in plot_ids]
for name in current_plots:
# get the plotter object first
plotter = PlotHelper.plotById(name)
graphs.append(plotter.figure)
return graphs
# Simple html report template
HEADER = "<html>\n"
HEADER += "<head>\n"
HEADER += "<meta http-equiv=Content-Type content='text/html; "
HEADER += "charset=utf-8'> \n"
HEADER += "<meta name=Generator >\n"
HEADER += "</head>\n"
HEADER += "<body lang=EN-US>\n"
HEADER += "<div class=WordSection1>\n"
HEADER += "<p class=MsoNormal><b><span ><center><font size='4' >"
HEADER += "%s</font></center></span></center></b></p>"
HEADER += "<p class=MsoNormal> </p>"
PARA = "<p class=MsoNormal><font size='4' > %s \n"
PARA += "</font></p>"
CENTRE = "<p class=MsoNormal><center><font size='4' > %s \n"
CENTRE += "</font></center></p>"
FEET_1 = \
"""
<p class=MsoNormal> </p>
<br>
<p class=MsoNormal><b><span ><center> <font size='4' > Graph
</font></span></center></b></p>
<p class=MsoNormal> </p>
<center>
<br><font size='4' >Model Computation</font>
<br><font size='4' >Data: "%s"</font><br>
"""
FEET_2 = \
'''<img src="data:image/png;base64,{}"></img>
'''
FEET_3 = \
'''<img width="540" src="data:image/png;base64,{}"></img>
'''
ELINE = """<p class=MsoNormal> </p>
"""