Helpviewer/UrlBar/FavIconLabel.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
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parent 2403
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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) 2010 - 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 the label to show the web site icon.
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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 try:
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12 str = unicode
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13 except (NameError):
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14 pass
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15
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16 from PyQt4.QtCore import Qt, QPoint, QUrl, QMimeData
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17 from PyQt4.QtGui import QLabel, QApplication, QDrag, QPixmap
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19
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20 class FavIconLabel(QLabel):
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21 """
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22 Class implementing the label to show the web site icon.
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23 """
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24 def __init__(self, parent=None):
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25 """
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26 Constructor
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27
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28 @param parent reference to the parent widget (QWidget)
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29 """
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30 super(FavIconLabel, self).__init__(parent)
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31
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32 self.__browser = None
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33 self.__dragStartPos = QPoint()
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34
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35 self.setFocusPolicy(Qt.NoFocus)
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36 self.setCursor(Qt.ArrowCursor)
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37 self.setMinimumSize(16, 16)
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38 self.resize(16, 16)
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39
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40 self.__browserIconChanged()
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41
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42 def __browserIconChanged(self):
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43 """
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44 Private slot to set the icon.
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45 """
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46 import Helpviewer.HelpWindow
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47 try:
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48 url = QUrl()
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49 if self.__browser:
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50 url = self.__browser.url()
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51 self.setPixmap(Helpviewer.HelpWindow.HelpWindow.icon(url).pixmap(16, 16))
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52 except RuntimeError:
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53 pass
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54
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55 def __clearIcon(self):
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56 """
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57 Private slot to clear the icon.
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58 """
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59 self.setPixmap(QPixmap())
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60
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61 def setBrowser(self, browser):
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62 """
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63 Public method to set the browser connection.
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64
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65 @param browser reference to the browser widegt (HelpBrowser)
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66 """
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67 self.__browser = browser
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68 self.__browser.loadFinished.connect(self.__browserIconChanged)
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69 self.__browser.iconChanged.connect(self.__browserIconChanged)
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70 self.__browser.loadStarted.connect(self.__clearIcon)
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71
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72 def mousePressEvent(self, evt):
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73 """
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74 Protected method to handle mouse press events.
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75
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76 @param evt reference to the mouse event (QMouseEvent)
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77 """
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78 if evt.button() == Qt.LeftButton:
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79 self.__dragStartPos = evt.pos()
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80 super(FavIconLabel, self).mousePressEvent(evt)
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81
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82 def mouseMoveEvent(self, evt):
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83 """
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84 Protected method to handle mouse move events.
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85
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86 @param evt reference to the mouse event (QMouseEvent)
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87 """
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88 if evt.button() == Qt.LeftButton and \
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89 (evt.pos() - self.__dragStartPos).manhattanLength() > \
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90 QApplication.startDragDistance() and \
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91 self.__browser is not None:
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92 drag = QDrag(self)
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93 mimeData = QMimeData()
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94 title = self.__browser.title()
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95 if title == "":
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96 title = str(self.__browser.url().toEncoded(), encoding="utf-8")
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97 mimeData.setText(title)
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98 mimeData.setUrls([self.__browser.url()])
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99 p = self.pixmap()
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100 if p:
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101 drag.setPixmap(p)
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102 drag.setMimeData(mimeData)
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103 drag.exec_()

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