eric6/WebBrowser/GreaseMonkey/GreaseMonkeyConfiguration/GreaseMonkeyConfigurationListDelegate.py

Wed, 30 Dec 2020 11:00:44 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 30 Dec 2020 11:00:44 +0100
branch
maintenance
changeset 7924
8a96736d465e
parent 7781
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child 8143
2c730d5fd177
permissions
-rw-r--r--

Updated copyright for 2021.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2012 - 2021 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
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8 scripts.
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9 """
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10
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11 from PyQt5.QtCore import Qt, QSize, QRect
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12 from PyQt5.QtGui import QFontMetrics, QPalette, QFont
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13 from PyQt5.QtWidgets import QStyle, QStyledItemDelegate, QApplication
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14 from PyQt5.QtWidgets import QStyleOptionViewItem
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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
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23 scripts.
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24 """
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25 IconSize = 32
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26 RemoveIconSize = 16
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27 CheckBoxSize = 18
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28 MinPadding = 5
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29 ItemWidth = 200
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30
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31 def __init__(self, parent=None):
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32 """
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33 Constructor
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34
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35 @param parent reference to the parent object (QObject)
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36 """
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37 super(GreaseMonkeyConfigurationListDelegate, self).__init__(parent)
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38
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39 self.__removePixmap = UI.PixmapCache.getIcon(
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40 "greaseMonkeyTrash").pixmap(
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41 GreaseMonkeyConfigurationListDelegate.RemoveIconSize)
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42 self.__rowHeight = 0
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43 self.__padding = 0
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44
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45 def padding(self):
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46 """
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47 Public method to get the padding used.
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48
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49 @return padding used (integer)
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50 """
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51 return self.__padding
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52
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53 def paint(self, painter, option, index):
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54 """
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55 Public method to paint the specified list item.
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56
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57 @param painter painter object to paint to (QPainter)
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58 @param option style option used for painting (QStyleOptionViewItem)
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59 @param index model index of the item (QModelIndex)
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60 """
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61 opt = QStyleOptionViewItem(option)
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62 self.initStyleOption(opt, index)
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63
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64 widget = opt.widget
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65 style = widget.style() if widget is not None else QApplication.style()
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66 height = opt.rect.height()
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67 center = height // 2 + opt.rect.top()
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68
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69 # Prepare title font
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70 titleFont = QFont(opt.font)
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71 titleFont.setBold(True)
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72 titleFont.setPointSize(titleFont.pointSize() + 1)
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73
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74 titleMetrics = QFontMetrics(titleFont)
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75 if Globals.isWindowsPlatform():
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76 colorRole = QPalette.Text
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77 else:
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78 colorRole = (
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79 QPalette.HighlightedText
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80 if opt.state & QStyle.State_Selected else QPalette.Text
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81 )
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82
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83 leftPos = self.__padding
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84 rightPos = (
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85 opt.rect.right() - self.__padding -
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86 GreaseMonkeyConfigurationListDelegate.RemoveIconSize
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87 )
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88
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89 # Draw background
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90 style.drawPrimitive(QStyle.PE_PanelItemViewItem, opt, painter, widget)
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91
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92 # Draw checkbox
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93 checkBoxYPos = (
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94 center -
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95 GreaseMonkeyConfigurationListDelegate.CheckBoxSize // 2
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96 )
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97 opt2 = QStyleOptionViewItem(opt)
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98 if opt2.checkState == Qt.Checked:
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99 opt2.state |= QStyle.State_On
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100 else:
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101 opt2.state |= QStyle.State_Off
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102 styleCheckBoxRect = style.subElementRect(
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103 QStyle.SE_ViewItemCheckIndicator, opt2, widget)
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104 opt2.rect = QRect(
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105 leftPos, checkBoxYPos,
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106 styleCheckBoxRect.width(), styleCheckBoxRect.height())
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107 style.drawPrimitive(QStyle.PE_IndicatorViewItemCheck, opt2, painter,
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108 widget)
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109 leftPos = opt2.rect.right() + self.__padding
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110
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111 # Draw icon
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112 iconYPos = center - GreaseMonkeyConfigurationListDelegate.IconSize // 2
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113 iconRect = QRect(leftPos, iconYPos,
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114 GreaseMonkeyConfigurationListDelegate.IconSize,
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115 GreaseMonkeyConfigurationListDelegate.IconSize)
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116 pixmap = index.data(Qt.DecorationRole).pixmap(
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117 GreaseMonkeyConfigurationListDelegate.IconSize)
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118 painter.drawPixmap(iconRect, pixmap)
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119 leftPos = iconRect.right() + self.__padding
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120
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121 # Draw script name
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122 name = index.data(Qt.DisplayRole)
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123 leftTitleEdge = leftPos + 2
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124 rightTitleEdge = rightPos - self.__padding
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125 try:
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126 leftPosForVersion = (
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127 titleMetrics.horizontalAdvance(name) + self.__padding
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128 )
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129 except AttributeError:
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130 leftPosForVersion = titleMetrics.width(name) + self.__padding
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131 nameRect = QRect(leftTitleEdge, opt.rect.top() + self.__padding,
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132 rightTitleEdge - leftTitleEdge, titleMetrics.height())
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133 painter.setFont(titleFont)
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134 style.drawItemText(painter, nameRect, Qt.AlignLeft, opt.palette, True,
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135 name, colorRole)
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136
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137 # Draw version
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138 version = index.data(Qt.UserRole)
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139 versionRect = QRect(
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140 nameRect.x() + leftPosForVersion, nameRect.y(),
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141 rightTitleEdge - leftTitleEdge, titleMetrics.height())
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142 versionFont = titleFont
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143 painter.setFont(versionFont)
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144 style.drawItemText(painter, versionRect, Qt.AlignLeft, opt.palette,
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145 True, version, colorRole)
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146
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147 # Draw description
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148 infoYPos = nameRect.bottom() + opt.fontMetrics.leading()
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149 infoRect = QRect(
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150 nameRect.x(), infoYPos,
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151 nameRect.width(), opt.fontMetrics.height())
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152 info = opt.fontMetrics.elidedText(
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153 index.data(Qt.UserRole + 1), Qt.ElideRight, infoRect.width())
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154 painter.setFont(opt.font)
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155 style.drawItemText(painter, infoRect, Qt.AlignLeft | Qt.TextSingleLine,
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156 opt.palette, True, info, colorRole)
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157
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158 # Draw remove button
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159 removeIconYPos = (
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160 center -
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161 GreaseMonkeyConfigurationListDelegate.RemoveIconSize // 2
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162 )
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163 removeIconRect = QRect(
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164 rightPos, removeIconYPos,
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165 GreaseMonkeyConfigurationListDelegate.RemoveIconSize,
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166 GreaseMonkeyConfigurationListDelegate.RemoveIconSize)
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167 painter.drawPixmap(removeIconRect, self.__removePixmap)
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168
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169 def sizeHint(self, option, index):
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170 """
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171 Public method to get a size hint for the specified list item.
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172
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173 @param option style option used for painting (QStyleOptionViewItem)
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174 @param index model index of the item (QModelIndex)
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175 @return size hint (QSize)
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176 """
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177 if not self.__rowHeight:
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178 opt = QStyleOptionViewItem(option)
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179 self.initStyleOption(opt, index)
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180
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181 widget = opt.widget
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182 style = (
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183 widget.style() if widget is not None
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184 else QApplication.style()
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185 )
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186 padding = style.pixelMetric(QStyle.PM_FocusFrameHMargin) + 1
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187
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188 titleFont = opt.font
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189 titleFont.setBold(True)
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190 titleFont.setPointSize(titleFont.pointSize() + 1)
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191
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192 self.__padding = (
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193 padding
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194 if padding > GreaseMonkeyConfigurationListDelegate.MinPadding
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195 else GreaseMonkeyConfigurationListDelegate.MinPadding
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196 )
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197
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198 titleMetrics = QFontMetrics(titleFont)
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199
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200 self.__rowHeight = (
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201 2 * self.__padding +
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202 opt.fontMetrics.leading() +
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203 opt.fontMetrics.height() +
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204 titleMetrics.height()
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205 )
1953
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206
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207 return QSize(GreaseMonkeyConfigurationListDelegate.ItemWidth,
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208 self.__rowHeight)

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