Helpviewer/GreaseMonkey/GreaseMonkeyConfiguration/GreaseMonkeyConfigurationListDelegate.py

Mon, 25 Mar 2013 03:11:06 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Mon, 25 Mar 2013 03:11:06 +0100
branch
Py2 comp.
changeset 2525
8b507a9a2d40
parent 2302
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child 3057
10516539f238
permissions
-rw-r--r--

Script changes: Future import added, super calls modified and unicode behavior for str.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2012 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a delegate for the special list widget for GreaseMonkey scripts.
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8 """
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9
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10 from __future__ import unicode_literals # __IGNORE_WARNING__
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11
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12 from PyQt4.QtCore import Qt, QSize, QRect
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13 from PyQt4.QtGui import QStyle, QStyledItemDelegate, QApplication, QFontMetrics, \
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14 QPalette, QFont, QStyleOptionViewItemV4
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15
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16 import UI.PixmapCache
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17 import Globals
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18
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19
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20 class GreaseMonkeyConfigurationListDelegate(QStyledItemDelegate):
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21 """
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22 Class implementing a delegate for the special list widget for GreaseMonkey scripts.
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23 """
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24 IconSize = 32
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25 RemoveIconSize = 16
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26 CheckBoxSize = 18
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27 MinPadding = 5
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28 ItemWidth = 200
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29
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30 def __init__(self, parent=None):
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31 """
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32 Constructor
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33
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34 @param parent reference to the parent object (QObject)
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35 """
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36 super(GreaseMonkeyConfigurationListDelegate, self).__init__(parent)
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37
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38 self.__removePixmap = UI.PixmapCache.getIcon("greaseMonkeyTrash.png").pixmap(
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39 GreaseMonkeyConfigurationListDelegate.RemoveIconSize)
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40 self.__rowHeight = 0
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41 self.__padding = 0
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42
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43 def padding(self):
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44 """
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45 Public method to get the padding used.
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46
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47 @return padding used (integer)
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48 """
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49 return self.__padding
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50
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51 def paint(self, painter, option, index):
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52 """
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53 Public method to paint the specified list item.
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54
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55 @param painter painter object to paint to (QPainter)
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56 @param option style option used for painting (QStyleOptionViewItem)
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57 @param index model index of the item (QModelIndex)
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58 """
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59 opt = QStyleOptionViewItemV4(option)
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60 self.initStyleOption(opt, index)
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61
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62 widget = opt.widget
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63 style = widget.style() if widget is not None else QApplication.style()
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64 height = opt.rect.height()
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65 center = height // 2 + opt.rect.top()
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66
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67 # Prepare title font
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68 titleFont = QFont(opt.font)
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69 titleFont.setBold(True)
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70 titleFont.setPointSize(titleFont.pointSize() + 1)
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71
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72 titleMetrics = QFontMetrics(titleFont)
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73 if Globals.isWindowsPlatform():
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74 colorRole = QPalette.Text
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75 else:
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76 colorRole = QPalette.HighlightedText \
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77 if opt.state & QStyle.State_Selected else QPalette.Text
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78
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79 leftPos = self.__padding
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80 rightPos = opt.rect.right() - self.__padding - \
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81 GreaseMonkeyConfigurationListDelegate.RemoveIconSize
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82
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83 # Draw background
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84 style.drawPrimitive(QStyle.PE_PanelItemViewItem, opt, painter, widget)
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85
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86 # Draw checkbox
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87 checkBoxYPos = center - GreaseMonkeyConfigurationListDelegate.CheckBoxSize // 2
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88 opt2 = QStyleOptionViewItemV4(opt)
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89 if opt2.checkState == Qt.Checked:
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90 opt2.state |= QStyle.State_On
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91 else:
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92 opt2.state |= QStyle.State_Off
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93 styleCheckBoxRect = style.subElementRect(
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94 QStyle.SE_ViewItemCheckIndicator, opt2, widget)
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95 opt2.rect = QRect(leftPos, checkBoxYPos,
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96 styleCheckBoxRect.width(), styleCheckBoxRect.height())
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97 style.drawPrimitive(QStyle.PE_IndicatorViewItemCheck, opt2, painter, widget)
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98 leftPos = opt2.rect.right() + self.__padding
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99
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100 # Draw icon
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101 iconYPos = center - GreaseMonkeyConfigurationListDelegate.IconSize // 2
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102 iconRect = QRect(leftPos, iconYPos,
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103 GreaseMonkeyConfigurationListDelegate.IconSize,
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104 GreaseMonkeyConfigurationListDelegate.IconSize)
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105 pixmap = index.data(Qt.DecorationRole).pixmap(
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106 GreaseMonkeyConfigurationListDelegate.IconSize)
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107 painter.drawPixmap(iconRect, pixmap)
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108 leftPos = iconRect.right() + self.__padding
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109
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110 # Draw script name
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111 name = index.data(Qt.DisplayRole)
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112 leftTitleEdge = leftPos + 2
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113 rightTitleEdge = rightPos - self.__padding
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114 leftPosForVersion = titleMetrics.width(name) + self.__padding
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115 nameRect = QRect(leftTitleEdge, opt.rect.top() + self.__padding,
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116 rightTitleEdge - leftTitleEdge, titleMetrics.height())
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117 painter.setFont(titleFont)
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118 style.drawItemText(painter, nameRect, Qt.AlignLeft, opt.palette, True,
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119 name, colorRole)
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120
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121 # Draw version
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122 version = index.data(Qt.UserRole)
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123 versionRect = QRect(nameRect.x() + leftPosForVersion, nameRect.y(),
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124 rightTitleEdge - leftTitleEdge, titleMetrics.height())
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125 versionFont = titleFont
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126 painter.setFont(versionFont)
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127 style.drawItemText(painter, versionRect, Qt.AlignLeft, opt.palette, True,
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128 version, colorRole)
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129
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130 # Draw description
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131 infoYPos = nameRect.bottom() + opt.fontMetrics.leading()
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132 infoRect = QRect(nameRect.x(), infoYPos,
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133 nameRect.width(), opt.fontMetrics.height())
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134 info = opt.fontMetrics.elidedText(index.data(Qt.UserRole + 1), Qt.ElideRight,
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135 infoRect.width())
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136 painter.setFont(opt.font)
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137 style.drawItemText(painter, infoRect, Qt.AlignLeft | Qt.TextSingleLine,
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138 opt.palette, True, info, colorRole)
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139
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140 # Draw remove button
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141 removeIconYPos = center - \
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142 GreaseMonkeyConfigurationListDelegate.RemoveIconSize // 2
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143 removeIconRect = QRect(rightPos, removeIconYPos,
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144 GreaseMonkeyConfigurationListDelegate.RemoveIconSize,
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145 GreaseMonkeyConfigurationListDelegate.RemoveIconSize)
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146 painter.drawPixmap(removeIconRect, self.__removePixmap)
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147
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148 def sizeHint(self, option, index):
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149 """
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150 Public method to get a size hint for the specified list item.
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151
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152 @param option style option used for painting (QStyleOptionViewItem)
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153 @param index model index of the item (QModelIndex)
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154 @return size hint (QSize)
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155 """
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156 if not self.__rowHeight:
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157 opt = QStyleOptionViewItemV4(option)
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158 self.initStyleOption(opt, index)
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159
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160 widget = opt.widget
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161 style = widget.style() if widget is not None else QApplication.style()
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162 padding = style.pixelMetric(QStyle.PM_FocusFrameHMargin) + 1
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163
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164 titleFont = opt.font
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165 titleFont.setBold(True)
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166 titleFont.setPointSize(titleFont.pointSize() + 1)
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167
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168 self.__padding = padding \
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169 if padding > GreaseMonkeyConfigurationListDelegate.MinPadding else \
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170 GreaseMonkeyConfigurationListDelegate.MinPadding
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171
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172 titleMetrics = QFontMetrics(titleFont)
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173
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174 self.__rowHeight = 2 * self.__padding + \
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175 opt.fontMetrics.leading() + \
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176 opt.fontMetrics.height() + \
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177 titleMetrics.height()
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178
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179 return QSize(GreaseMonkeyConfigurationListDelegate.ItemWidth, self.__rowHeight)

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