Helpviewer/GreaseMonkey/GreaseMonkeyConfiguration/GreaseMonkeyConfigurationListWidget.py

Thu, 10 Oct 2013 18:35:45 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Thu, 10 Oct 2013 18:35:45 +0200
changeset 3002
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parent 2302
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child 3057
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child 3160
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permissions
-rw-r--r--

Continued to shorten the code lines to max. 79 characters.

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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 special list widget for GreaseMonkey scripts.
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8 """
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9
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10 from PyQt4.QtCore import pyqtSignal, QRect
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11 from PyQt4.QtGui import QListWidget, QListWidgetItem
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12
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13 from .GreaseMonkeyConfigurationListDelegate import \
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14 GreaseMonkeyConfigurationListDelegate
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15
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16
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17 class GreaseMonkeyConfigurationListWidget(QListWidget):
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18 """
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19 Class implementing a special list widget for GreaseMonkey scripts.
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20 """
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21 removeItemRequested = pyqtSignal(QListWidgetItem)
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22
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23 def __init__(self, parent=None):
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24 """
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25 Constructor
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26
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27 @param parent reference to the parent widget (QWidget)
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28 """
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29 super().__init__(parent)
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30
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31 self.__delegate = GreaseMonkeyConfigurationListDelegate(self)
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32 self.setItemDelegate(self.__delegate)
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33
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34 def __containsRemoveIcon(self, pos):
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35 """
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36 Private method to check, if the given position is inside the remove
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37 icon.
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38
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39 @param pos position to check for (QPoint)
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40 @return flag indicating success (boolean)
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41 """
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42 itm = self.itemAt(pos)
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43 if itm is None:
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44 return False
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45
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46 rect = self.visualItemRect(itm)
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47 iconSize = GreaseMonkeyConfigurationListDelegate.RemoveIconSize
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48 removeIconXPos = rect.right() - self.__delegate.padding() - iconSize
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49 center = rect.height() // 2 + rect.top()
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50 removeIconYPos = center - iconSize // 2
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51
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52 removeIconRect = QRect(removeIconXPos, removeIconYPos,
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53 iconSize, iconSize)
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54 return removeIconRect.contains(pos)
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55
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56 def mousePressEvent(self, evt):
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57 """
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58 Private method handling presses of mouse buttons.
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59
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60 @param evt mouse press event (QMouseEvent)
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61 """
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62 if self.__containsRemoveIcon(evt.pos()):
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63 self.removeItemRequested.emit(self.itemAt(evt.pos()))
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64 return
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65
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66 super().mousePressEvent(evt)
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67
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68 def mouseDoubleClickEvent(self, evt):
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69 """
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70 Private method handling mouse double click events.
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71
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72 @param evt mouse press event (QMouseEvent)
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73 """
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74 if self.__containsRemoveIcon(evt.pos()):
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75 self.removeItemRequested.emit(self.itemAt(evt.pos()))
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76 return
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77
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78 super().mouseDoubleClickEvent(evt)

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