src/eric7/WebBrowser/WebBrowserSnap.py

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eric7
changeset 9209
b99e7fd55fd3
parent 8881
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child 9221
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9208:3fc8dfeb6ebe 9209:b99e7fd55fd3
1 # -*- coding: utf-8 -*-
2
3 # Copyright (c) 2010 - 2022 Detlev Offenbach <detlev@die-offenbachs.de>
4 #
5
6 """
7 Module implementing functions to generate page previews.
8 """
9
10 from PyQt6.QtCore import Qt
11 from PyQt6.QtGui import QPixmap, QPainter
12
13
14 def renderTabPreview(view, w, h):
15 """
16 Public function to render a pixmap of a page.
17
18 @param view reference to the view to be previewed (QWebEngineView)
19 @param w width of the preview pixmap (integer)
20 @param h height of the preview pixmap (integer)
21 @return preview pixmap (QPixmap)
22 """
23 pageImage = __render(view, view.width(), view.height())
24 return pageImage.scaled(
25 w, h,
26 Qt.AspectRatioMode.IgnoreAspectRatio,
27 Qt.TransformationMode.SmoothTransformation
28 )
29
30
31 def __render(view, w, h):
32 """
33 Private function to render a pixmap of given size for a web page.
34
35 @param view reference to the view to be previewed (QWebEngineView)
36 @param w width of the pixmap (integer)
37 @param h height of the pixmap (integer)
38 @return rendered pixmap (QPixmap)
39 """
40 # create the page image
41 pageImage = QPixmap(w, h)
42 pageImage.fill(Qt.GlobalColor.transparent)
43
44 # render it
45 p = QPainter(pageImage)
46 view.render(p)
47 p.end()
48
49 return pageImage

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