| 1 | import os |
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| 2 | import sys |
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| 3 | |
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| 4 | import sas.qtgui.Utilities.GuiUtils as GuiUtils |
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| 5 | from PyQt5 import QtGui, QtCore, QtWidgets |
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| 6 | |
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| 7 | import sas.qtgui.Utilities.ObjectLibrary as ObjectLibrary |
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| 8 | |
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| 9 | from sas.qtgui.Perspectives.Fitting.UI.ConstraintWidgetUI import Ui_ConstraintWidgetUI |
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| 10 | from sas.qtgui.Perspectives.Fitting.FittingWidget import FittingWidget |
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| 11 | |
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| 12 | class ConstraintWidget(QtWidgets.QWidget, Ui_ConstraintWidgetUI): |
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| 13 | """ |
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| 14 | Constraints Dialog to select the desired parameter/model constraints. |
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| 15 | """ |
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| 16 | |
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| 17 | def __init__(self, parent=None): |
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| 18 | super(ConstraintWidget, self).__init__() |
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| 19 | self.parent = parent |
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| 20 | self.setupUi(self) |
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| 21 | self.currentType = "FitPage" |
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| 22 | |
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| 23 | # Remember previous content of modified cell |
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| 24 | self.current_cell = "" |
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| 25 | |
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| 26 | # Set up the widgets |
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| 27 | self.initializeWidgets() |
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| 28 | |
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| 29 | # Set up signals/slots |
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| 30 | self.initializeSignals() |
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| 31 | |
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| 32 | # Create the list of tabs |
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| 33 | self.initializeFitList() |
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| 34 | |
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| 35 | def acceptsData(self): |
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| 36 | """ Tells the caller this widget doesn't accept data """ |
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| 37 | return False |
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| 38 | |
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| 39 | def initializeWidgets(self): |
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| 40 | """ |
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| 41 | Set up various widget states |
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| 42 | """ |
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| 43 | labels = ['FitPage', 'Model', 'Data', 'Mnemonic'] |
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| 44 | # tab widget - headers |
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| 45 | self.editable_tab_columns = [labels.index('Mnemonic')] |
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| 46 | self.tblTabList.setColumnCount(len(labels)) |
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| 47 | self.tblTabList.setHorizontalHeaderLabels(labels) |
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| 48 | self.tblTabList.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch) |
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| 49 | |
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| 50 | self.tblTabList.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) |
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| 51 | self.tblTabList.customContextMenuRequested.connect(self.showModelContextMenu) |
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| 52 | |
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| 53 | # disabled constraint |
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| 54 | labels = ['Constraint'] |
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| 55 | self.tblConstraints.setColumnCount(len(labels)) |
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| 56 | self.tblConstraints.setHorizontalHeaderLabels(labels) |
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| 57 | self.tblConstraints.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch) |
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| 58 | self.tblConstraints.setEnabled(False) |
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| 59 | |
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| 60 | self.tblConstraints.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) |
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| 61 | self.tblConstraints.customContextMenuRequested.connect(self.showConstrContextMenu) |
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| 62 | |
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| 63 | def initializeSignals(self): |
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| 64 | """ |
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| 65 | Set up signals/slots for this widget |
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| 66 | """ |
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| 67 | # simple widgets |
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| 68 | self.btnSingle.toggled.connect(self.onFitTypeChange) |
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| 69 | self.btnBatch.toggled.connect(self.onFitTypeChange) |
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| 70 | self.cbCases.currentIndexChanged.connect(self.onSpecialCaseChange) |
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| 71 | self.cmdFit.clicked.connect(self.onFit) |
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| 72 | self.cmdHelp.clicked.connect(self.onHelp) |
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| 73 | |
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| 74 | # QTableWidgets |
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| 75 | self.tblTabList.cellChanged.connect(self.onMonikerEdit) |
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| 76 | self.tblTabList.cellDoubleClicked.connect(self.onTabCellEntered) |
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| 77 | self.tblConstraints.cellChanged.connect(self.onConstraintChange) |
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| 78 | |
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| 79 | # External signals |
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| 80 | self.parent.tabsModifiedSignal.connect(self.initializeFitList) |
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| 81 | |
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| 82 | def updateSignalsFromTab(self, tab=None): |
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| 83 | """ |
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| 84 | Intercept update signals from fitting tabs |
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| 85 | """ |
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| 86 | if tab is not None: |
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| 87 | ObjectLibrary.getObject(tab).constraintAddedSignal.connect(self.initializeFitList) |
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| 88 | ObjectLibrary.getObject(tab).newModelSignal.connect(self.initializeFitList) |
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| 89 | |
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| 90 | def onFitTypeChange(self, checked): |
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| 91 | """ |
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| 92 | Respond to the fit type change |
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| 93 | single fit/batch fit |
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| 94 | """ |
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| 95 | pass |
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| 96 | |
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| 97 | def onSpecialCaseChange(self, index): |
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| 98 | """ |
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| 99 | Respond to the combobox change for special case constraint sets |
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| 100 | """ |
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| 101 | pass |
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| 102 | |
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| 103 | def onFit(self): |
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| 104 | """ |
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| 105 | Perform the constrained/simultaneous fit |
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| 106 | """ |
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| 107 | pass |
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| 108 | |
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| 109 | def onHelp(self): |
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| 110 | """ |
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| 111 | Display the help page |
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| 112 | """ |
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| 113 | pass |
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| 114 | |
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| 115 | def onMonikerEdit(self, row, column): |
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| 116 | """ |
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| 117 | Modify the model moniker |
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| 118 | """ |
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| 119 | if column not in self.editable_tab_columns: |
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| 120 | return |
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| 121 | item = self.tblTabList.item(row, column) |
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| 122 | new_moniker = item.data(0) |
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| 123 | |
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| 124 | # The new name should be validated on the fly, with QValidator |
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| 125 | # but let's just assure it post-factum |
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| 126 | is_good_moniker = self.validateMoniker(new_moniker) |
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| 127 | is_good_moniker = True |
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| 128 | if not is_good_moniker: |
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| 129 | item.setBackground(QtCore.Qt.red) |
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| 130 | self.cmdFit.setEnabled(False) |
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| 131 | else: |
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| 132 | self.tblTabList.blockSignals(True) |
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| 133 | item.setBackground(QtCore.Qt.white) |
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| 134 | self.tblTabList.blockSignals(False) |
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| 135 | self.cmdFit.setEnabled(True) |
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| 136 | if not self.current_cell: |
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| 137 | return |
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| 138 | # Remember the value |
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| 139 | if self.current_cell not in self.available_tabs: |
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| 140 | return |
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| 141 | temp_tab = self.available_tabs[self.current_cell] |
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| 142 | # Remove the key from the dictionaries |
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| 143 | self.available_tabs.pop(self.current_cell, None) |
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| 144 | # Change the model name |
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| 145 | model = temp_tab.kernel_module |
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| 146 | model.name = new_moniker |
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| 147 | # Replace constraint name |
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| 148 | temp_tab.replaceConstraintName(self.current_cell, new_moniker) |
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| 149 | # Reinitialize the display |
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| 150 | self.initializeFitList() |
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| 151 | pass |
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| 152 | |
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| 153 | def onConstraintChange(self, row, column): |
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| 154 | """ |
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| 155 | Modify the constraint in-place. |
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| 156 | Tricky. |
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| 157 | """ |
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| 158 | pass |
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| 159 | |
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| 160 | def onTabCellEntered(self, row, column): |
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| 161 | """ |
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| 162 | Remember the original tab list cell data. |
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| 163 | Needed for reverting back on bad validation |
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| 164 | """ |
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| 165 | if column != 3: |
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| 166 | return |
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| 167 | self.current_cell = self.tblTabList.item(row, column).data(0) |
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| 168 | |
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| 169 | def isTabImportable(self, tab): |
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| 170 | """ |
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| 171 | Determines if the tab can be imported and included in the widget |
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| 172 | """ |
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| 173 | if not self.currentType in tab: return False |
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| 174 | object = ObjectLibrary.getObject(tab) |
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| 175 | if not isinstance(object, FittingWidget): return False |
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| 176 | if object.data is None: return False |
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| 177 | return True |
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| 178 | |
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| 179 | def showModelContextMenu(self, position): |
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| 180 | """ |
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| 181 | Show context specific menu in the tab table widget. |
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| 182 | """ |
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| 183 | menu = QtWidgets.QMenu() |
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| 184 | rows = [s.row() for s in self.tblTabList.selectionModel().selectedRows()] |
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| 185 | num_rows = len(rows) |
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| 186 | if num_rows <= 0: |
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| 187 | return |
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| 188 | # Select for fitting |
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| 189 | param_string = "Fit Page " if num_rows==1 else "Fit Pages " |
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| 190 | to_string = "to its current value" if num_rows==1 else "to their current values" |
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| 191 | |
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| 192 | self.actionSelect = QtWidgets.QAction(self) |
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| 193 | self.actionSelect.setObjectName("actionSelect") |
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| 194 | self.actionSelect.setText(QtCore.QCoreApplication.translate("self", "Select "+param_string+" for fitting")) |
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| 195 | # Unselect from fitting |
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| 196 | self.actionDeselect = QtWidgets.QAction(self) |
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| 197 | self.actionDeselect.setObjectName("actionDeselect") |
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| 198 | self.actionDeselect.setText(QtCore.QCoreApplication.translate("self", "De-select "+param_string+" from fitting")) |
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| 199 | |
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| 200 | self.actionRemoveConstraint = QtWidgets.QAction(self) |
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| 201 | self.actionRemoveConstraint.setObjectName("actionRemoveConstrain") |
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| 202 | self.actionRemoveConstraint.setText(QtCore.QCoreApplication.translate("self", "Remove all constraints on selected models")) |
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| 203 | |
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| 204 | self.actionMutualMultiConstrain = QtWidgets.QAction(self) |
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| 205 | self.actionMutualMultiConstrain.setObjectName("actionMutualMultiConstrain") |
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| 206 | self.actionMutualMultiConstrain.setText(QtCore.QCoreApplication.translate("self", "Mutual constrain of parameters in selected models...")) |
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| 207 | |
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| 208 | menu.addAction(self.actionSelect) |
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| 209 | menu.addAction(self.actionDeselect) |
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| 210 | menu.addSeparator() |
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| 211 | |
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| 212 | #menu.addAction(self.actionRemoveConstraint) |
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| 213 | if num_rows >= 2: |
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| 214 | menu.addAction(self.actionMutualMultiConstrain) |
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| 215 | |
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| 216 | # Define the callbacks |
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| 217 | #self.actionConstrain.triggered.connect(self.addSimpleConstraint) |
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| 218 | #self.actionRemoveConstraint.triggered.connect(self.deleteConstraint) |
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| 219 | self.actionMutualMultiConstrain.triggered.connect(self.showMultiConstraint) |
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| 220 | self.actionSelect.triggered.connect(self.selectModels) |
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| 221 | self.actionDeselect.triggered.connect(self.deselectModels) |
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| 222 | try: |
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| 223 | menu.exec_(self.tblTabList.viewport().mapToGlobal(position)) |
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| 224 | except AttributeError as ex: |
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| 225 | logging.error("Error generating context menu: %s" % ex) |
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| 226 | return |
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| 227 | |
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| 228 | def showConstrContextMenu(self, position): |
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| 229 | """ |
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| 230 | Show context specific menu in the tab table widget. |
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| 231 | """ |
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| 232 | menu = QtWidgets.QMenu() |
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| 233 | rows = [s.row() for s in self.tblConstraints.selectionModel().selectedRows()] |
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| 234 | num_rows = len(rows) |
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| 235 | if num_rows <= 0: |
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| 236 | return |
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| 237 | # Select for fitting |
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| 238 | param_string = "constraint " if num_rows==1 else "constraints " |
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| 239 | to_string = "to its current value" if num_rows==1 else "to their current values" |
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| 240 | |
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| 241 | self.actionSelect = QtWidgets.QAction(self) |
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| 242 | self.actionSelect.setObjectName("actionSelect") |
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| 243 | self.actionSelect.setText(QtCore.QCoreApplication.translate("self", "Select "+param_string+" for fitting")) |
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| 244 | # Unselect from fitting |
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| 245 | self.actionDeselect = QtWidgets.QAction(self) |
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| 246 | self.actionDeselect.setObjectName("actionDeselect") |
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| 247 | self.actionDeselect.setText(QtCore.QCoreApplication.translate("self", "De-select "+param_string+" from fitting")) |
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| 248 | |
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| 249 | self.actionRemoveConstraint = QtWidgets.QAction(self) |
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| 250 | self.actionRemoveConstraint.setObjectName("actionRemoveConstrain") |
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| 251 | self.actionRemoveConstraint.setText(QtCore.QCoreApplication.translate("self", "Remove "+param_string)) |
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| 252 | |
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| 253 | menu.addAction(self.actionSelect) |
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| 254 | menu.addAction(self.actionDeselect) |
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| 255 | menu.addSeparator() |
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| 256 | menu.addAction(self.actionRemoveConstraint) |
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| 257 | |
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| 258 | # Define the callbacks |
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| 259 | #self.actionConstrain.triggered.connect(self.addSimpleConstraint) |
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| 260 | self.actionRemoveConstraint.triggered.connect(self.deleteConstraint) |
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| 261 | #self.actionMutualMultiConstrain.triggered.connect(self.showMultiConstraint) |
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| 262 | self.actionSelect.triggered.connect(self.selectConstraints) |
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| 263 | self.actionDeselect.triggered.connect(self.deselectConstraints) |
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| 264 | try: |
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| 265 | menu.exec_(self.tblConstraints.viewport().mapToGlobal(position)) |
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| 266 | except AttributeError as ex: |
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| 267 | logging.error("Error generating context menu: %s" % ex) |
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| 268 | return |
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| 269 | |
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| 270 | def selectConstraints(self): |
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| 271 | """ |
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| 272 | Selected constraints are chosen for fitting |
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| 273 | """ |
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| 274 | status = QtCore.Qt.Checked |
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| 275 | self.setRowSelection(self.tblConstraints, status) |
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| 276 | |
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| 277 | def deselectConstraints(self): |
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| 278 | """ |
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| 279 | Selected constraints are removed for fitting |
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| 280 | """ |
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| 281 | status = QtCore.Qt.Unchecked |
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| 282 | self.setRowSelection(self.tblConstraints, status) |
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| 283 | |
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| 284 | def selectModels(self): |
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| 285 | """ |
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| 286 | Selected models are chosen for fitting |
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| 287 | """ |
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| 288 | status = QtCore.Qt.Checked |
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| 289 | self.setRowSelection(self.tblTabList, status) |
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| 290 | |
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| 291 | def deselectModels(self): |
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| 292 | """ |
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| 293 | Selected models are removed for fitting |
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| 294 | """ |
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| 295 | status = QtCore.Qt.Unchecked |
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| 296 | self.setRowSelection(self.tblTabList, status) |
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| 297 | |
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| 298 | def selectedParameters(self, widget): |
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| 299 | """ Returns list of selected (highlighted) parameters """ |
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| 300 | return [s.row() for s in widget.selectionModel().selectedRows()] |
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| 301 | |
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| 302 | def setRowSelection(self, widget, status=QtCore.Qt.Unchecked): |
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| 303 | """ |
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| 304 | Selected models are chosen for fitting |
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| 305 | """ |
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| 306 | # Convert to proper indices and set requested enablement |
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| 307 | for row in self.selectedParameters(widget): |
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| 308 | widget.item(row, 0).setCheckState(status) |
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| 309 | |
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| 310 | def deleteConstraint(self):#, row): |
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| 311 | """ |
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| 312 | Delete all selected constraints. |
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| 313 | """ |
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| 314 | # Removing rows from the table we're iterating over, |
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| 315 | # so prepare a list of data first |
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| 316 | constraints_to_delete = [] |
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| 317 | for row in self.selectedParameters(self.tblConstraints): |
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| 318 | constraints_to_delete.append(self.tblConstraints.item(row, 0).data(0)) |
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| 319 | for constraint in constraints_to_delete: |
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| 320 | moniker = constraint[:constraint.index(':')] |
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| 321 | param = constraint[constraint.index(':')+1:constraint.index('=')].strip() |
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| 322 | tab = self.available_tabs[moniker] |
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| 323 | tab.deleteConstraintOnParameter(param) |
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| 324 | # Constraints removed - refresh the table widget |
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| 325 | self.initializeFitList() |
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| 326 | |
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| 327 | def uneditableItem(self, data=""): |
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| 328 | """ |
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| 329 | Returns an uneditable Table Widget Item |
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| 330 | """ |
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| 331 | item = QtWidgets.QTableWidgetItem(data) |
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| 332 | item.setFlags( QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled ) |
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| 333 | return item |
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| 334 | |
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| 335 | def updateFitLine(self, tab): |
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| 336 | """ |
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| 337 | Update a single line of the table widget with tab info |
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| 338 | """ |
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| 339 | model = ObjectLibrary.getObject(tab).kernel_module |
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| 340 | if model is None: |
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| 341 | return |
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| 342 | tab_name = tab |
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| 343 | model_name = model.id |
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| 344 | moniker = model.name |
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| 345 | model_data = ObjectLibrary.getObject(tab).data |
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| 346 | model_filename = model_data.filename |
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| 347 | self.available_tabs[moniker] = ObjectLibrary.getObject(tab) |
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| 348 | |
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| 349 | # Update the model table widget |
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| 350 | #item = QtWidgets.QTableWidgetItem(tab_name) |
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| 351 | #item.setCheckState(QtCore.Qt.Checked) |
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| 352 | #item.setFlags( QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled ) |
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| 353 | pos = self.tblTabList.rowCount() |
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| 354 | self.tblTabList.insertRow(pos) |
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| 355 | item = self.uneditableItem(tab_name) |
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| 356 | item.setFlags(item.flags() ^ QtCore.Qt.ItemIsUserCheckable) |
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| 357 | item.setCheckState(QtCore.Qt.Checked) |
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| 358 | self.tblTabList.setItem(pos, 0, item) |
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| 359 | self.tblTabList.setItem(pos, 1, self.uneditableItem(model_name)) |
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| 360 | self.tblTabList.setItem(pos, 2, self.uneditableItem(model_filename)) |
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| 361 | # Moniker is editable, so no option change |
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| 362 | item = QtWidgets.QTableWidgetItem(moniker) |
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| 363 | # Disable signals so we don't get infinite call recursion |
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| 364 | self.tblTabList.blockSignals(True) |
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| 365 | self.tblTabList.setItem(pos, 3, item) |
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| 366 | self.tblTabList.blockSignals(False) |
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| 367 | |
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| 368 | # Check if any constraints present in tab |
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| 369 | constraints = ObjectLibrary.getObject(tab).getConstraintsForModel() |
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| 370 | if not constraints: |
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| 371 | return |
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| 372 | self.tblConstraints.setEnabled(True) |
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| 373 | for constraint in constraints: |
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| 374 | # Create the text for widget item |
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| 375 | label = moniker + ":"+ constraint[0] + " = " + constraint[1] |
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| 376 | |
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| 377 | # Show the text in the constraint table |
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| 378 | item = QtWidgets.QTableWidgetItem(label) |
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| 379 | item.setCheckState(QtCore.Qt.Checked) |
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| 380 | pos = self.tblConstraints.rowCount() |
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| 381 | self.tblConstraints.insertRow(pos) |
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| 382 | self.tblConstraints.setItem(pos, 0, item) |
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| 383 | self.available_constraints[pos] = constraints |
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| 384 | |
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| 385 | def initializeFitList(self): |
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| 386 | """ |
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| 387 | Fill the list of model/data sets for fitting/constraining |
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| 388 | """ |
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| 389 | # look at the object library to find all fit tabs |
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| 390 | # Show the content of the current "model" |
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| 391 | objects = ObjectLibrary.listObjects() |
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| 392 | |
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| 393 | # Tab dict |
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| 394 | # moniker -> (kernel_module, data) |
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| 395 | self.available_tabs = {} |
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| 396 | # Constraint dict |
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| 397 | # moniker -> [constraints] |
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| 398 | self.available_constraints = {} |
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| 399 | |
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| 400 | # Reset the table widgets |
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| 401 | self.tblTabList.setRowCount(0) |
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| 402 | self.tblConstraints.setRowCount(0) |
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| 403 | |
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| 404 | # Fit disabled |
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| 405 | self.cmdFit.setEnabled(False) |
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| 406 | |
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| 407 | if not objects: |
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| 408 | return |
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| 409 | |
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| 410 | tabs = [tab for tab in ObjectLibrary.listObjects() if self.isTabImportable(tab)] |
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| 411 | for tab in tabs: |
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| 412 | self.updateFitLine(tab) |
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| 413 | self.updateSignalsFromTab(tab) |
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| 414 | # We have at least 1 fit page, allow fitting |
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| 415 | self.cmdFit.setEnabled(True) |
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| 416 | |
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| 417 | def validateMoniker(self, new_moniker=None): |
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| 418 | """ |
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| 419 | Check new_moniker for correctness. |
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| 420 | It must be non-empty. |
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| 421 | It must not be the same as other monikers. |
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| 422 | """ |
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| 423 | if not new_moniker: |
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| 424 | return False |
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| 425 | |
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| 426 | for existing_moniker in self.available_tabs: |
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| 427 | if existing_moniker == new_moniker and existing_moniker != self.current_cell: |
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| 428 | return False |
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| 429 | |
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| 430 | return True |
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| 431 | |
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| 432 | def showMultiConstraint(self): |
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| 433 | """ |
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| 434 | Invoke the complex constraint editor |
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| 435 | """ |
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| 436 | pass |
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