1 | from PyQt5 import QtCore |
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2 | from PyQt5 import QtGui |
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3 | from PyQt5 import QtWidgets |
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4 | |
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5 | import sas.qtgui.Utilities.GuiUtils as GuiUtils |
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6 | |
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7 | class ModelViewDelegate(QtWidgets.QStyledItemDelegate): |
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8 | """ |
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9 | Custom delegate for appearance and behavior control of the model view |
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10 | """ |
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11 | def __init__(self, parent=None): |
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12 | """ |
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13 | Overwrite generic constructor to allow for some globals |
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14 | """ |
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15 | super(QtWidgets.QStyledItemDelegate, self).__init__() |
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16 | |
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17 | # Main parameter table view columns |
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18 | self.param_error=-1 |
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19 | self.param_property=0 |
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20 | self.param_value=1 |
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21 | self.param_min=2 |
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22 | self.param_max=3 |
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23 | self.param_unit=4 |
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24 | |
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25 | def fancyColumns(self): |
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26 | return [self.param_value, self.param_min, self.param_max, self.param_unit] |
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27 | |
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28 | def addErrorColumn(self): |
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29 | """ |
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30 | Modify local column pointers |
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31 | Note: the reverse is never required! |
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32 | """ |
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33 | self.param_property=0 |
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34 | self.param_value=1 |
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35 | self.param_error=2 |
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36 | self.param_min=3 |
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37 | self.param_max=4 |
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38 | self.param_unit=5 |
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39 | |
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40 | def paint(self, painter, option, index): |
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41 | """ |
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42 | Overwrite generic painter for certain columns |
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43 | """ |
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44 | if index.column() in self.fancyColumns(): |
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45 | # Units - present in nice HTML |
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46 | options = QtWidgets.QStyleOptionViewItem(option) |
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47 | self.initStyleOption(options,index) |
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48 | |
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49 | style = QtWidgets.QApplication.style() if options.widget is None else options.widget.style() |
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50 | |
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51 | # Prepare document for inserting into cell |
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52 | doc = QtGui.QTextDocument() |
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53 | |
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54 | # Convert the unit description into HTML |
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55 | text_html = GuiUtils.convertUnitToHTML(str(options.text)) |
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56 | doc.setHtml(text_html) |
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57 | |
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58 | # delete the original content |
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59 | options.text = "" |
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60 | style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, options, painter, options.widget); |
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61 | |
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62 | context = QtGui.QAbstractTextDocumentLayout.PaintContext() |
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63 | textRect = style.subElementRect(QtWidgets.QStyle.SE_ItemViewItemText, options) |
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64 | |
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65 | painter.save() |
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66 | painter.translate(textRect.topLeft()) |
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67 | painter.setClipRect(textRect.translated(-textRect.topLeft())) |
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68 | # Draw the QTextDocument in the cell |
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69 | doc.documentLayout().draw(painter, context) |
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70 | painter.restore() |
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71 | else: |
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72 | # Just the default paint |
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73 | QtWidgets.QStyledItemDelegate.paint(self, painter, option, index) |
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74 | |
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75 | def createEditor(self, widget, option, index): |
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76 | """ |
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77 | Overwrite generic editor for certain columns |
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78 | """ |
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79 | if not index.isValid(): |
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80 | return 0 |
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81 | if index.column() == self.param_value: #only in the value column |
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82 | editor = QtWidgets.QLineEdit(widget) |
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83 | validator = GuiUtils.DoubleValidator() |
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84 | editor.setValidator(validator) |
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85 | return editor |
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86 | if index.column() in [self.param_property, self.param_error, self.param_unit]: |
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87 | # Set some columns uneditable |
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88 | return None |
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89 | |
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90 | return super(ModelViewDelegate, self).createEditor(widget, option, index) |
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91 | |
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92 | def setModelData(self, editor, model, index): |
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93 | """ |
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94 | Overwrite generic model update method for certain columns |
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95 | """ |
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96 | if index.column() in (self.param_min, self.param_max): |
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97 | try: |
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98 | value_float = float(editor.text()) |
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99 | except ValueError: |
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100 | # TODO: present the failure to the user |
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101 | # balloon popup? tooltip? cell background colour flash? |
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102 | return |
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103 | QtWidgets.QStyledItemDelegate.setModelData(self, editor, model, index) |
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104 | |
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105 | |
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106 | class PolyViewDelegate(QtWidgets.QStyledItemDelegate): |
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107 | """ |
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108 | Custom delegate for appearance and behavior control of the polydispersity view |
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109 | """ |
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110 | POLYDISPERSE_FUNCTIONS = ['rectangle', 'array', 'lognormal', 'gaussian', 'schulz'] |
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111 | |
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112 | combo_updated = QtCore.pyqtSignal(str, int) |
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113 | filename_updated = QtCore.pyqtSignal(int) |
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114 | |
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115 | def __init__(self, parent=None): |
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116 | """ |
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117 | Overwrite generic constructor to allow for some globals |
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118 | """ |
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119 | super(QtWidgets.QStyledItemDelegate, self).__init__() |
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120 | |
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121 | self.poly_parameter = 0 |
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122 | self.poly_pd = 1 |
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123 | self.poly_min = 2 |
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124 | self.poly_max = 3 |
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125 | self.poly_npts = 4 |
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126 | self.poly_nsigs = 5 |
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127 | self.poly_function = 6 |
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128 | self.poly_filename = 7 |
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129 | |
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130 | def editableParameters(self): |
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131 | return [self.poly_pd, self.poly_min, self.poly_max, self.poly_npts, self.poly_nsigs] |
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132 | |
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133 | def columnDict(self): |
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134 | return {self.poly_pd: 'width', |
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135 | self.poly_min: 'min', |
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136 | self.poly_max: 'max', |
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137 | self.poly_npts: 'npts', |
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138 | self.poly_nsigs: 'nsigmas'} |
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139 | |
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140 | def addErrorColumn(self): |
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141 | """ |
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142 | Modify local column pointers |
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143 | Note: the reverse is never required! |
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144 | """ |
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145 | self.poly_parameter = 0 |
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146 | self.poly_pd = 1 |
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147 | self.poly_min = 3 |
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148 | self.poly_max = 4 |
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149 | self.poly_npts = 5 |
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150 | self.poly_nsigs = 6 |
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151 | self.poly_function = 7 |
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152 | self.poly_filename = 8 |
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153 | |
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154 | def createEditor(self, widget, option, index): |
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155 | # Remember the current choice |
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156 | if not index.isValid(): |
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157 | return 0 |
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158 | elif index.column() == self.poly_filename: |
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159 | # Notify the widget that we want to change the filename |
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160 | self.filename_updated.emit(index.row()) |
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161 | return None |
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162 | elif index.column() in self.editableParameters(): |
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163 | self.editor = QtWidgets.QLineEdit(widget) |
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164 | validator = GuiUtils.DoubleValidator() |
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165 | self.editor.setValidator(validator) |
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166 | return self.editor |
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167 | else: |
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168 | QtWidgets.QStyledItemDelegate.createEditor(self, widget, option, index) |
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169 | |
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170 | def paint(self, painter, option, index): |
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171 | """ |
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172 | Overwrite generic painter for certain columns |
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173 | """ |
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174 | if index.column() in (self.poly_min, self.poly_max): |
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175 | # Units - present in nice HTML |
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176 | options = QtWidgets.QStyleOptionViewItem(option) |
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177 | self.initStyleOption(options,index) |
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178 | |
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179 | style = QtWidgets.QApplication.style() if options.widget is None else options.widget.style() |
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180 | |
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181 | # Prepare document for inserting into cell |
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182 | doc = QtGui.QTextDocument() |
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183 | |
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184 | # Convert the unit description into HTML |
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185 | text_html = GuiUtils.convertUnitToHTML(str(options.text)) |
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186 | doc.setHtml(text_html) |
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187 | |
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188 | # delete the original content |
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189 | options.text = "" |
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190 | style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, options, painter, options.widget); |
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191 | |
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192 | context = QtGui.QAbstractTextDocumentLayout.PaintContext() |
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193 | textRect = style.subElementRect(QtWidgets.QStyle.SE_ItemViewItemText, options) |
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194 | |
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195 | painter.save() |
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196 | painter.translate(textRect.topLeft()) |
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197 | painter.setClipRect(textRect.translated(-textRect.topLeft())) |
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198 | # Draw the QTextDocument in the cell |
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199 | doc.documentLayout().draw(painter, context) |
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200 | painter.restore() |
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201 | else: |
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202 | # Just the default paint |
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203 | QtWidgets.QStyledItemDelegate.paint(self, painter, option, index) |
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204 | |
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205 | class MagnetismViewDelegate(QtWidgets.QStyledItemDelegate): |
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206 | """ |
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207 | Custom delegate for appearance and behavior control of the magnetism view |
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208 | """ |
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209 | def __init__(self, parent=None): |
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210 | """ |
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211 | Overwrite generic constructor to allow for some globals |
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212 | """ |
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213 | super(QtWidgets.QStyledItemDelegate, self).__init__() |
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214 | |
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215 | self.mag_parameter = 0 |
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216 | self.mag_value = 1 |
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217 | self.mag_min = 2 |
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218 | self.mag_max = 3 |
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219 | self.mag_unit = 4 |
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220 | |
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221 | def editableParameters(self): |
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222 | return [self.mag_value, self.mag_min, self.mag_max] |
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223 | |
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224 | def addErrorColumn(self): |
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225 | """ |
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226 | Modify local column pointers |
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227 | Note: the reverse is never required! |
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228 | """ |
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229 | self.mag_parameter = 0 |
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230 | self.mag_value = 1 |
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231 | self.mag_min = 3 |
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232 | self.mag_max = 4 |
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233 | self.mag_unit = 5 |
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234 | |
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235 | def createEditor(self, widget, option, index): |
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236 | # Remember the current choice |
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237 | current_text = index.data() |
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238 | if not index.isValid(): |
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239 | return 0 |
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240 | if index.column() in self.editableParameters(): |
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241 | editor = QtWidgets.QLineEdit(widget) |
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242 | validator = GuiUtils.DoubleValidator() |
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243 | editor.setValidator(validator) |
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244 | return editor |
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245 | else: |
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246 | QtWidgets.QStyledItemDelegate.createEditor(self, widget, option, index) |
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247 | |
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248 | def paint(self, painter, option, index): |
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249 | """ |
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250 | Overwrite generic painter for certain columns |
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251 | """ |
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252 | if index.column() in (self.mag_min, self.mag_max, self.mag_unit): |
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253 | # Units - present in nice HTML |
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254 | options = QtWidgets.QStyleOptionViewItem(option) |
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255 | self.initStyleOption(options,index) |
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256 | |
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257 | style = QtWidgets.QApplication.style() if options.widget is None else options.widget.style() |
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258 | |
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259 | # Prepare document for inserting into cell |
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260 | doc = QtGui.QTextDocument() |
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261 | |
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262 | # Convert the unit description into HTML |
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263 | text_html = GuiUtils.convertUnitToHTML(str(options.text)) |
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264 | doc.setHtml(text_html) |
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265 | |
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266 | # delete the original content |
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267 | options.text = "" |
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268 | style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, options, painter, options.widget); |
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269 | |
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270 | context = QtGui.QAbstractTextDocumentLayout.PaintContext() |
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271 | textRect = style.subElementRect(QtWidgets.QStyle.SE_ItemViewItemText, options) |
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272 | |
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273 | painter.save() |
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274 | painter.translate(textRect.topLeft()) |
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275 | painter.setClipRect(textRect.translated(-textRect.topLeft())) |
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276 | # Draw the QTextDocument in the cell |
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277 | doc.documentLayout().draw(painter, context) |
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278 | painter.restore() |
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279 | else: |
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280 | # Just the default paint |
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281 | QtWidgets.QStyledItemDelegate.paint(self, painter, option, index) |
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