eric7/E5Gui/EricModelToolBar.py

Sat, 22 May 2021 18:51:46 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 22 May 2021 18:51:46 +0200
branch
eric7
changeset 8356
68ec9c3d4de5
parent 8319
eric7/E5Gui/E5ModelToolBar.py@ea11a3948f40
permissions
-rw-r--r--

Renamed the modules and classes of the E5Gui package to have the prefix 'Eric' instead of 'E5'.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 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 tool bar populated from a QAbstractItemModel.
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8 """
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9
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10 from PyQt6.QtCore import pyqtSignal, Qt, QModelIndex, QPoint, QEvent
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11 from PyQt6.QtGui import QDrag, QIcon
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12 from PyQt6.QtWidgets import QApplication, QToolBar, QToolButton
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13
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14
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15 class EricModelToolBar(QToolBar):
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16 """
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17 Class implementing a tool bar populated from a QAbstractItemModel.
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18
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19 @signal activated(QModelIndex) emitted when an action has been triggered
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20 """
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21 activated = pyqtSignal(QModelIndex)
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22
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23 def __init__(self, title=None, parent=None):
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24 """
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25 Constructor
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26
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27 @param title title for the tool bar (string)
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28 @param parent reference to the parent widget (QWidget)
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29 """
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30 if title is not None:
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31 super().__init__(title, parent)
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32 else:
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33 super().__init__(parent)
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34
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35 self.__model = None
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36
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37 self.__root = QModelIndex()
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38 self.__dragStartPosition = QPoint()
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39
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40 if self.isVisible():
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41 self._build()
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42
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43 self.setAcceptDrops(True)
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44
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45 self._mouseButton = Qt.MouseButton.NoButton
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46 self._keyboardModifiers = Qt.KeyboardModifier.NoModifier
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47 self.__dropRow = -1
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48 self.__dropIndex = None
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49
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50 def setModel(self, model):
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51 """
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52 Public method to set the model for the tool bar.
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53
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54 @param model reference to the model (QAbstractItemModel)
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55 """
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56 if self.__model is not None:
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57 self.__model.modelReset.disconnect(self._build)
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58 self.__model.rowsInserted[QModelIndex, int, int].disconnect(
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59 self._build)
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60 self.__model.rowsRemoved[QModelIndex, int, int].disconnect(
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61 self._build)
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62 self.__model.dataChanged.disconnect(
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63 self._build)
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64
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65 self.__model = model
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66
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67 if self.__model is not None:
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68 self.__model.modelReset.connect(self._build)
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69 self.__model.rowsInserted[QModelIndex, int, int].connect(
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70 self._build)
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71 self.__model.rowsRemoved[QModelIndex, int, int].connect(
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72 self._build)
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73 self.__model.dataChanged.connect(
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74 self._build)
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75
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76 def model(self):
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77 """
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78 Public method to get a reference to the model.
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79
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80 @return reference to the model (QAbstractItemModel)
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81 """
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82 return self.__model
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83
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84 def setRootIndex(self, idx):
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85 """
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86 Public method to set the root index.
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87
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88 @param idx index to be set as the root index (QModelIndex)
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89 """
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90 self.__root = idx
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91
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92 def rootIndex(self):
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93 """
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94 Public method to get the root index.
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95
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96 @return root index (QModelIndex)
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97 """
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98 return self.__root
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99
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100 def _build(self):
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101 """
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102 Protected slot to build the tool bar.
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103 """
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104 if self.__model is None:
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105 return
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106
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107 self.clear()
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108
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109 for i in range(self.__model.rowCount(self.__root)):
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110 idx = self.__model.index(i, 0, self.__root)
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111
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112 title = idx.data(Qt.ItemDataRole.DisplayRole)
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113 icon = idx.data(Qt.ItemDataRole.DecorationRole)
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114 if icon == NotImplemented or icon is None:
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115 icon = QIcon()
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116 folder = self.__model.hasChildren(idx)
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117
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118 act = self.addAction(icon, title)
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119 act.setData(idx)
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120
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121 button = self.widgetForAction(act)
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122 button.installEventFilter(self)
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123
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124 if folder:
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125 menu = self._createMenu()
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126 menu.setModel(self.__model)
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127 menu.setRootIndex(idx)
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128 button.setMenu(menu)
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129 button.setPopupMode(
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parents: 7923
diff changeset
130 QToolButton.ToolButtonPopupMode.InstantPopup)
2c730d5fd177 Changed the use of PyQt enums because the way they were used previously is deprecated since two years and replaced some deprecated Qt stuff.
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parents: 7923
diff changeset
131 button.setToolButtonStyle(
2c730d5fd177 Changed the use of PyQt enums because the way they were used previously is deprecated since two years and replaced some deprecated Qt stuff.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7923
diff changeset
132 Qt.ToolButtonStyle.ToolButtonTextBesideIcon)
55
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parents:
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133
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parents:
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134 def index(self, action):
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parents:
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135 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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136 Public method to get the index of an action.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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137
b5c84934de9c Renamed E4Gui to E5Gui.
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parents:
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138 @param action reference to the action to get the index for (QAction)
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parents:
diff changeset
139 @return index of the action (QModelIndex)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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140 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
141 if action is None:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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142 return QModelIndex()
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parents:
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143
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
144 idx = action.data()
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parents:
diff changeset
145 if idx is None:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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146 return QModelIndex()
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parents:
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147
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 if not isinstance(idx, QModelIndex):
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parents:
diff changeset
149 return QModelIndex()
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150
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
151 return idx
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parents:
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152
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
153 def _createMenu(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
154 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 Protected method to create the menu for a tool bar action.
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parents:
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156
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157 @return menu for a tool bar action (EricModelMenu)
55
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parents:
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158 """
8356
68ec9c3d4de5 Renamed the modules and classes of the E5Gui package to have the prefix 'Eric' instead of 'E5'.
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159 from .EricModelMenu import EricModelMenu
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parents: 8319
diff changeset
160 return EricModelMenu(self)
55
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161
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Detlev Offenbach <detlev@die-offenbachs.de>
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162 def eventFilter(self, obj, evt):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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163 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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164 Public method to handle event for other objects.
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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165
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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166 @param obj reference to the object (QObject)
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
167 @param evt reference to the event (QEvent)
b5c84934de9c Renamed E4Gui to E5Gui.
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parents:
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168 @return flag indicating that the event should be filtered out (boolean)
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parents:
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169 """
8143
2c730d5fd177 Changed the use of PyQt enums because the way they were used previously is deprecated since two years and replaced some deprecated Qt stuff.
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parents: 7923
diff changeset
170 if evt.type() == QEvent.Type.MouseButtonRelease:
55
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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171 self._mouseButton = evt.button()
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
172 self._keyboardModifiers = evt.modifiers()
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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173 act = obj.defaultAction()
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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174 idx = self.index(act)
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
175 if idx.isValid():
482
4650a72c307a Continued porting signal/slot usage to the new API.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 55
diff changeset
176 self.activated[QModelIndex].emit(idx)
8222
5994b80b8760 Applied some more code simplifications suggested by the new Simplify checker (Y102: use single if) (batch 1).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8218
diff changeset
177 elif (
5994b80b8760 Applied some more code simplifications suggested by the new Simplify checker (Y102: use single if) (batch 1).
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parents: 8218
diff changeset
178 evt.type() == QEvent.Type.MouseButtonPress and
5994b80b8760 Applied some more code simplifications suggested by the new Simplify checker (Y102: use single if) (batch 1).
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parents: 8218
diff changeset
179 evt.buttons() & Qt.MouseButton.LeftButton
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180 ):
8319
ea11a3948f40 Continued porting eric to PyQt6.
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181 self.__dragStartPosition = self.mapFromGlobal(evt.globalPosition().toPoint())
55
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182
b5c84934de9c Renamed E4Gui to E5Gui.
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183 return False
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184
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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185 def dragEnterEvent(self, evt):
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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186 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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187 Protected method to handle drag enter events.
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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188
b5c84934de9c Renamed E4Gui to E5Gui.
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parents:
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189 @param evt reference to the event (QDragEnterEvent)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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190 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
191 if self.__model is not None:
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Detlev Offenbach <detlev@die-offenbachs.de>
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192 mimeTypes = self.__model.mimeTypes()
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 for mimeType in mimeTypes:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
194 if evt.mimeData().hasFormat(mimeType):
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
195 evt.acceptProposedAction()
b5c84934de9c Renamed E4Gui to E5Gui.
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196
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diff changeset
197 super().dragEnterEvent(evt)
55
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198
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
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199 def dropEvent(self, evt):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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200 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
201 Protected method to handle drop events.
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
203 @param evt reference to the event (QDropEvent)
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parents: 7360
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204 @exception RuntimeError raised to indicate an invalid model index
55
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205 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 if self.__model is not None:
8318
962bce857696 Replaced all imports of PyQt5 to PyQt6 and started to replace code using obsoleted methods and adapt to the PyQt6 enum usage.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8312
diff changeset
207 act = self.actionAt(evt.position().toPoint())
55
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diff changeset
208 parentIndex = self.__root
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209 if act is None:
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
210 row = self.__model.rowCount(self.__root)
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 else:
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212 idx = self.index(act)
7628
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parents: 7360
diff changeset
213 if not idx.isValid():
f904d0eef264 Checked the reported security related issue reports generated by the new security checker.
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parents: 7360
diff changeset
214 raise RuntimeError("invalid index")
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 row = idx.row()
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 if self.__model.hasChildren(idx):
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217 parentIndex = idx
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 row = self.__model.rowCount(idx)
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
219
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 self.__dropRow = row
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 self.__dropIndex = parentIndex
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 evt.acceptProposedAction()
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
223 self.__model.dropMimeData(evt.mimeData(), evt.dropAction(),
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224 row, 0, parentIndex)
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225
8218
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parents: 8143
diff changeset
226 super().dropEvent(evt)
55
b5c84934de9c Renamed E4Gui to E5Gui.
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parents:
diff changeset
227
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
228 def mouseMoveEvent(self, evt):
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
229 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
230 Protected method to handle mouse move events.
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
231
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
232 @param evt reference to the event (QMouseEvent)
7628
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7360
diff changeset
233 @exception RuntimeError raised to indicate an invalid model index
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
234 """
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
235 if self.__model is None:
8218
7c09585bd960 Applied some more code simplifications suggested by the new Simplify checker (super(Foo, self) => super()).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8143
diff changeset
236 super().mouseMoveEvent(evt)
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
237 return
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
238
8143
2c730d5fd177 Changed the use of PyQt enums because the way they were used previously is deprecated since two years and replaced some deprecated Qt stuff.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7923
diff changeset
239 if not (evt.buttons() & Qt.MouseButton.LeftButton):
8218
7c09585bd960 Applied some more code simplifications suggested by the new Simplify checker (super(Foo, self) => super()).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8143
diff changeset
240 super().mouseMoveEvent(evt)
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
241 return
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
242
8318
962bce857696 Replaced all imports of PyQt5 to PyQt6 and started to replace code using obsoleted methods and adapt to the PyQt6 enum usage.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8312
diff changeset
243 manhattanLength = (evt.position().toPoint() -
2990
583beaf0b4b8 Continued to shorten the code lines to max. 79 characters.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2467
diff changeset
244 self.__dragStartPosition).manhattanLength()
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
245 if manhattanLength <= QApplication.startDragDistance():
8218
7c09585bd960 Applied some more code simplifications suggested by the new Simplify checker (super(Foo, self) => super()).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8143
diff changeset
246 super().mouseMoveEvent(evt)
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
247 return
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
248
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
249 act = self.actionAt(self.__dragStartPosition)
b5c84934de9c Renamed E4Gui to E5Gui.
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parents:
diff changeset
250 if act is None:
8218
7c09585bd960 Applied some more code simplifications suggested by the new Simplify checker (super(Foo, self) => super()).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 8143
diff changeset
251 super().mouseMoveEvent(evt)
55
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
252 return
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
253
b5c84934de9c Renamed E4Gui to E5Gui.
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
254 idx = self.index(act)
7628
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7360
diff changeset
255 if not idx.isValid():
f904d0eef264 Checked the reported security related issue reports generated by the new security checker.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7360
diff changeset
256 raise RuntimeError("invalid index")
55
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257
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258 drag = QDrag(self)
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259 drag.setMimeData(self.__model.mimeData([idx]))
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260 actionRect = self.actionGeometry(act)
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684261ef2165 Removed the Qt4 runtime stuff.
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261 drag.setPixmap(self.grab(actionRect))
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262
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263 if drag.exec() == Qt.DropAction.MoveAction:
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264 row = idx.row()
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265 if self.__dropIndex == idx.parent() and self.__dropRow <= row:
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266 row += 1
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267 self.__model.removeRow(row, self.__root)
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268
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269 def hideEvent(self, evt):
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270 """
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271 Protected method to handle hide events.
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272
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273 @param evt reference to the hide event (QHideEvent)
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274 """
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275 self.clear()
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276 super().hideEvent(evt)
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277
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278 def showEvent(self, evt):
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279 """
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parents:
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280 Protected method to handle show events.
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281
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282 @param evt reference to the hide event (QHideEvent)
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283 """
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284 if len(self.actions()) == 0:
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285 self._build()
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286 super().showEvent(evt)
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287
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288 def resetFlags(self):
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289 """
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parents:
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290 Public method to reset the saved internal state.
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291 """
8143
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parents: 7923
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292 self._mouseButton = Qt.MouseButton.NoButton
8319
ea11a3948f40 Continued porting eric to PyQt6.
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parents: 8318
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293 self._keyboardModifiers = Qt.KeyboardModifier.NoModifier

eric ide

mercurial