Mercurial Repositories > eric / file comparison
comparison: eric6/Helpviewer/UrlBar/FavIconLabel.py
eric6/Helpviewer/UrlBar/FavIconLabel.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the label to show the web site icon. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 try: | |
| 12 str = unicode | |
| 13 except NameError: | |
| 14 pass | |
| 15 | |
| 16 from PyQt5.QtCore import Qt, QPoint, QUrl, QMimeData | |
| 17 from PyQt5.QtGui import QDrag, QPixmap | |
| 18 from PyQt5.QtWidgets import QLabel, QApplication | |
| 19 | |
| 20 | |
| 21 class FavIconLabel(QLabel): | |
| 22 """ | |
| 23 Class implementing the label to show the web site icon. | |
| 24 """ | |
| 25 def __init__(self, parent=None): | |
| 26 """ | |
| 27 Constructor | |
| 28 | |
| 29 @param parent reference to the parent widget (QWidget) | |
| 30 """ | |
| 31 super(FavIconLabel, self).__init__(parent) | |
| 32 | |
| 33 self.__browser = None | |
| 34 self.__dragStartPos = QPoint() | |
| 35 | |
| 36 self.setFocusPolicy(Qt.NoFocus) | |
| 37 self.setCursor(Qt.ArrowCursor) | |
| 38 self.setMinimumSize(16, 16) | |
| 39 self.resize(16, 16) | |
| 40 | |
| 41 self.__browserIconChanged() | |
| 42 | |
| 43 def __browserIconChanged(self): | |
| 44 """ | |
| 45 Private slot to set the icon. | |
| 46 """ | |
| 47 import Helpviewer.HelpWindow | |
| 48 try: | |
| 49 url = QUrl() | |
| 50 if self.__browser: | |
| 51 url = self.__browser.url() | |
| 52 self.setPixmap( | |
| 53 Helpviewer.HelpWindow.HelpWindow.icon(url).pixmap(16, 16)) | |
| 54 except RuntimeError: | |
| 55 pass | |
| 56 | |
| 57 def __clearIcon(self): | |
| 58 """ | |
| 59 Private slot to clear the icon. | |
| 60 """ | |
| 61 self.setPixmap(QPixmap()) | |
| 62 | |
| 63 def setBrowser(self, browser): | |
| 64 """ | |
| 65 Public method to set the browser connection. | |
| 66 | |
| 67 @param browser reference to the browser widegt (HelpBrowser) | |
| 68 """ | |
| 69 self.__browser = browser | |
| 70 self.__browser.loadFinished.connect(self.__browserIconChanged) | |
| 71 self.__browser.iconChanged.connect(self.__browserIconChanged) | |
| 72 self.__browser.loadStarted.connect(self.__clearIcon) | |
| 73 | |
| 74 def mousePressEvent(self, evt): | |
| 75 """ | |
| 76 Protected method to handle mouse press events. | |
| 77 | |
| 78 @param evt reference to the mouse event (QMouseEvent) | |
| 79 """ | |
| 80 if evt.button() == Qt.LeftButton: | |
| 81 self.__dragStartPos = evt.pos() | |
| 82 super(FavIconLabel, self).mousePressEvent(evt) | |
| 83 | |
| 84 def mouseMoveEvent(self, evt): | |
| 85 """ | |
| 86 Protected method to handle mouse move events. | |
| 87 | |
| 88 @param evt reference to the mouse event (QMouseEvent) | |
| 89 """ | |
| 90 if evt.button() == Qt.LeftButton and \ | |
| 91 (evt.pos() - self.__dragStartPos).manhattanLength() > \ | |
| 92 QApplication.startDragDistance() and \ | |
| 93 self.__browser is not None: | |
| 94 drag = QDrag(self) | |
| 95 mimeData = QMimeData() | |
| 96 title = self.__browser.title() | |
| 97 if title == "": | |
| 98 title = str(self.__browser.url().toEncoded(), encoding="utf-8") | |
| 99 mimeData.setText(title) | |
| 100 mimeData.setUrls([self.__browser.url()]) | |
| 101 p = self.pixmap() | |
| 102 if p: | |
| 103 drag.setPixmap(p) | |
| 104 drag.setMimeData(mimeData) | |
| 105 drag.exec_() |
