source: sasview/src/sas/qtgui/Perspectives/Invariant/InvariantDetails.py @ 5a2bb75

Last change on this file since 5a2bb75 was 7c487846, checked in by Piotr Rozyczko <rozyczko@…>, 7 years ago

Fixes to the Invariant perspective
  • Property mode set to 100755
File size: 7.0 KB
Line 
1import sys
2import os
3from PyQt5 import QtCore
4from PyQt5 import QtGui, QtWidgets
5
6# local
7from .UI.InvariantDetailsUI import Ui_Dialog
8from .InvariantUtils import WIDGETS
9
10# ERROR_COLOR = wx.Colour(255, 0, 0, 128)
11# EXTRAPOLATION_COLOR = wx.Colour(169, 169, 168, 128)
12# INVARIANT_COLOR = wx.Colour(67, 208, 128, 128)
13
14class DetailsDialog(QtWidgets.QDialog, Ui_Dialog):
15    """
16    This class stores some values resulting from invariant calculations.
17    Given the value of total invariant, this class can also
18    determine the percentage of invariants resulting from extrapolation.
19    """
20    def __init__(self, parent):
21        super(DetailsDialog, self).__init__(parent)
22
23        self.setupUi(self)
24
25        DEFAULT_STYLE = """
26        QProgressBar{
27            border: 2px solid grey;
28            border-radius: 5px;
29            text-align: center
30        }
31
32        QProgressBar::chunk {
33            background-color: #b1daf9;
34            width: 10px;
35            margin: 1px;
36        }
37        """
38        self.progressBarLowQ.setStyleSheet(DEFAULT_STYLE)
39        self.progressBarData.setStyleSheet(DEFAULT_STYLE)
40        self.progressBarHighQ.setStyleSheet(DEFAULT_STYLE)
41
42        self.progressBarLowQ.setMinimum(0)
43        self.progressBarLowQ.setMaximum(100)
44
45        self.progressBarData.setMinimum(0)
46        self.progressBarData.setMaximum(100)
47
48        self.progressBarHighQ.setMinimum(0)
49        self.progressBarHighQ.setMaximum(100)
50
51        # Modify font in order to display Angstrom symbol correctly
52        new_font = 'font-family: -apple-system, "Helvetica Neue", "Ubuntu";'
53        self.lblQLowQUnits.setStyleSheet(new_font)
54        self.lblQDataUnits.setStyleSheet(new_font)
55        self.lblQHighQUnits.setStyleSheet(new_font)
56
57        self.cmdOK.clicked.connect(self.accept)
58
59        self.warning_msg = "No Details on calculations available...\n"
60
61        # invariant total
62        self.qstar_total = None
63        self.qhigh = None
64        self.qlow = None
65        self._model = None
66
67        self.progress_low_qstar = 0.0
68        self.progress_high_qstar = 0.0
69        self.progress_qstar = 100.0
70
71    def setModel(self, model):
72        """ """
73        self._model = model
74
75    def showDialog(self):
76        """ Fill the dialog with values of calculated Q, progress bars"""
77        # Pull out data from the model
78        self.qstar_total = float(self._model.item(WIDGETS.W_INVARIANT).text())
79
80        self.txtQData.setText(str(self.qstar_total))
81        self.txtQDataErr.setText(self._model.item(WIDGETS.W_INVARIANT_ERR).text())
82
83        # Reset progress counters
84        self.progress_low_qstar = 0.0
85        self.progress_high_qstar = 0.0
86        self.progress_qstar = 100.0
87
88        # Low-Q
89        if self._model.item(WIDGETS.W_ENABLE_LOWQ).text() == "true":
90            self.qlow = float(self._model.item(WIDGETS.D_LOW_QSTAR).text())
91
92            self.txtQLowQ.setText(str(self.qlow))
93            self.txtQLowQErr.setText(self._model.item(WIDGETS.D_LOW_QSTAR_ERR).text())
94            try:
95                self.progress_low_qstar = (self.qlow/self.qstar_total)*100.0
96            except:
97                self.progress_low_qstar = 'error'
98
99        # High-Q
100        if self._model.item(WIDGETS.W_ENABLE_HIGHQ).text() == "true":
101            self.qhigh = float(self._model.item(WIDGETS.D_HIGH_QSTAR).text())
102
103            self.txtQHighQ.setText(str(self.qhigh))
104            self.txtQHighQErr.setText(self._model.item(WIDGETS.D_HIGH_QSTAR_ERR).text())
105            try:
106                self.progress_high_qstar = (self.qhigh/self.qstar_total)*100.0
107            except:
108                self.progress_high_qstar = 'error'
109
110        try:
111            self.progress_qstar -= self.progress_low_qstar + self.progress_high_qstar
112        except:
113            self.progress_qstar = 'error'
114
115        # check values and display warning
116        if self.checkValues():
117            self.lblWarning.setText(self.checkValues())
118
119        # update progress bars
120        if self.progress_low_qstar == 'error':
121            self.progressBarLowQ.setValue(0)
122        else:
123            self.progressBarLowQ.setValue(self.progress_low_qstar)
124
125        if self.progress_high_qstar == 'error':
126            self.progressBarHighQ.setValue(0)
127        else:
128            self.progressBarHighQ.setValue(self.progress_high_qstar)
129
130        if self.progress_qstar == 'error':
131            self.progressBarData.setValue(0)
132        else:
133            self.progressBarData.setValue(self.progress_qstar)
134
135        self.show()
136
137    def checkValues(self):
138        """
139        Create a warning message to be displayed in panel
140        if problems with values
141        """
142
143        if self.qstar_total is None:
144            warning_msg = "Invariant not calculated.\n"
145            return warning_msg
146        elif self.qstar_total == 0:
147            warning_msg = "Invariant is zero. \n " \
148                          "The calculations are likely to be unreliable!\n"
149            return warning_msg
150
151        msg = ''
152        if self.progress_qstar == 'error':
153            msg += 'Error occurred when computing invariant from data.\n '
154        try:
155            if float(self.progress_qstar) > 100:
156                msg += "Invariant Q contribution is greater than 100% .\n"
157        except ValueError:
158            # Text message, skip msg update
159            pass
160
161        if self.progress_low_qstar == 'error':
162            try:
163                float(self.qlow)
164            except:
165                msg += "Error occurred when computing extrapolated invariant"
166                msg += " at low-Q region.\n"
167
168        elif self.progress_low_qstar is not None:
169            if self.progress_low_qstar >= 5:
170                msg += "Extrapolated contribution at Low Q is higher "
171                msg += "than 5% of the invariant.\n"
172            elif self.progress_low_qstar < 0:
173                msg += "Extrapolated contribution at Low Q < 0.\n"
174            elif self.progress_low_qstar > 100:
175                msg += "Extrapolated contribution at Low Q is greater "
176                msg += "than 100% .\n"
177
178        # High-Q
179        if self.progress_high_qstar == 'error':
180            try:
181                float(self.qhigh)
182            except:
183                msg += 'Error occurred when computing extrapolated'
184                msg += ' invariant at high-Q region.\n'
185
186        elif self.progress_high_qstar is not None:
187            if self.progress_high_qstar >= 5:
188                msg += "Extrapolated contribution at High Q is higher " \
189                       "than 5% of the invariant.\n"
190            elif self.progress_high_qstar < 0:
191
192                msg += "Extrapolated contribution at High Q < 0.\n"
193            elif self.progress_high_qstar > 100:
194
195                msg += "Extrapolated contribution at High Q is greater " \
196                       "than 100% .\n"
197
198        if (self.progress_low_qstar not in [None, "error"]) and \
199            (self.progress_high_qstar not in [None, "error"])\
200            and self.progress_low_qstar + self.progress_high_qstar >= 5:
201
202            msg += "The sum of all extrapolated contributions is higher " \
203                   "than 5% of the invariant.\n"
204
205        return msg
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