E5Gui/E5ClickableLabel.py

Thu, 10 Jan 2019 14:18:48 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Thu, 10 Jan 2019 14:18:48 +0100
changeset 6645
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parent 6048
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permissions
-rw-r--r--

Updated copyright for 2019.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2012 - 2019 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 clickable label.
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8 """
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9
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10 from __future__ import unicode_literals
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11
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12 from PyQt5.QtCore import pyqtSignal, Qt, QPoint
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13 from PyQt5.QtWidgets import QLabel
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14
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15
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16 class E5ClickableLabel(QLabel):
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17 """
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18 Class implementing a clickable label.
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19
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20 @signal clicked(QPoint) emitted upon a click on the label
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21 with the left button
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22 @signal middleClicked(QPoint) emitted upon a click on the label
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23 with the middle button or CTRL and left button
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24 """
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25 clicked = pyqtSignal(QPoint)
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26 middleClicked = pyqtSignal(QPoint)
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27
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28 def __init__(self, parent=None):
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29 """
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30 Constructor
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31
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32 @param parent reference to the parent widget (QWidget)
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33 """
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34 super(E5ClickableLabel, self).__init__(parent)
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36 self.setCursor(Qt.PointingHandCursor)
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37
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38 def mouseReleaseEvent(self, evt):
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39 """
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40 Protected method handling mouse release events.
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41
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42 @param evt mouse event (QMouseEvent)
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43 """
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44 if evt.button() == Qt.LeftButton and self.rect().contains(evt.pos()):
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45 if evt.modifiers() == Qt.ControlModifier:
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46 self.middleClicked.emit(evt.globalPos())
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47 else:
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48 self.clicked.emit(evt.globalPos())
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49 elif evt.button() == Qt.MidButton and \
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50 self.rect().contains(evt.pos()):
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51 self.middleClicked.emit(evt.globalPos())
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52 else:
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53 super(E5ClickableLabel, self).mouseReleaseEvent(evt)

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