Mercurial Repositories > eric / file comparison
comparison: WebBrowser/PageScreenDialog.py
WebBrowser/PageScreenDialog.py
- branch
- QtWebEngine
- changeset 4780
- 1d203a177b16
- parent 4631
- 5c1a96925da4
- child 4857
- 8dba5fb92f12
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| 4779:173e0d2ab1f9 | 4780:1d203a177b16 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 - 2016 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to save a screenshot of a web page. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import pyqtSlot, Qt, QFile, QFileInfo, QSize | |
| 13 from PyQt5.QtGui import QImage, QPainter, QPixmap | |
| 14 from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QAbstractButton | |
| 15 | |
| 16 from E5Gui import E5FileDialog, E5MessageBox | |
| 17 | |
| 18 from .Ui_PageScreenDialog import Ui_PageScreenDialog | |
| 19 | |
| 20 | |
| 21 class PageScreenDialog(QDialog, Ui_PageScreenDialog): | |
| 22 """ | |
| 23 Class documentation goes here. | |
| 24 """ | |
| 25 def __init__(self, view, visibleOnly=False, parent=None): | |
| 26 """ | |
| 27 Constructor | |
| 28 | |
| 29 @param view reference to the web view containing the page to be saved | |
| 30 (WebBrowserView) | |
| 31 @param visibleOnly flag indicating to just save the visible part | |
| 32 of the page (boolean) | |
| 33 @param parent reference to the parent widget (QWidget) | |
| 34 """ | |
| 35 super(PageScreenDialog, self).__init__(parent) | |
| 36 self.setupUi(self) | |
| 37 self.setWindowFlags(Qt.Window) | |
| 38 | |
| 39 self.__view = view | |
| 40 self.__createPixmap(visibleOnly) | |
| 41 self.pageScreenLabel.setPixmap(self.__pagePixmap) | |
| 42 | |
| 43 def __createPixmap(self, visibleOnly): | |
| 44 """ | |
| 45 Private slot to create a pixmap of the associated view's page. | |
| 46 | |
| 47 @param visibleOnly flag indicating to just save the visible part | |
| 48 of the page (boolean) | |
| 49 """ | |
| 50 res = self.__view.page().execJavaScript( | |
| 51 "(function() {" | |
| 52 "var res = {" | |
| 53 " width: 0," | |
| 54 " height: 0," | |
| 55 "};" | |
| 56 "res.width = document.body.scrollWidth;" | |
| 57 "res.height = document.body.scrollHeight;" | |
| 58 "return res;" | |
| 59 "})()" | |
| 60 ) | |
| 61 if visibleOnly: | |
| 62 image = QImage(QSize(res["width"], self.__view.height()), | |
| 63 QImage.Format_ARGB32) | |
| 64 painter = QPainter(image) | |
| 65 self.__view.render(painter) | |
| 66 painter.end() | |
| 67 else: | |
| 68 # TODO: once QWebEngineView supports this | |
| 69 image = QImage(QSize(res["width"], self.__view.height()), | |
| 70 QImage.Format_ARGB32) | |
| 71 painter = QPainter(image) | |
| 72 self.__view.render(painter) | |
| 73 painter.end() | |
| 74 | |
| 75 self.__pagePixmap = QPixmap.fromImage(image) | |
| 76 | |
| 77 def __savePageScreen(self): | |
| 78 """ | |
| 79 Private slot to save the page screen. | |
| 80 | |
| 81 @return flag indicating success (boolean) | |
| 82 """ | |
| 83 fileName = E5FileDialog.getSaveFileName( | |
| 84 self, | |
| 85 self.tr("Save Page Screen"), | |
| 86 self.tr("screen.png"), | |
| 87 self.tr("Portable Network Graphics File (*.png)"), | |
| 88 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 89 if not fileName: | |
| 90 return False | |
| 91 | |
| 92 if QFileInfo(fileName).exists(): | |
| 93 res = E5MessageBox.yesNo( | |
| 94 self, | |
| 95 self.tr("Save Page Screen"), | |
| 96 self.tr("<p>The file <b>{0}</b> already exists." | |
| 97 " Overwrite it?</p>").format(fileName), | |
| 98 icon=E5MessageBox.Warning) | |
| 99 if not res: | |
| 100 return False | |
| 101 | |
| 102 file = QFile(fileName) | |
| 103 if not file.open(QFile.WriteOnly): | |
| 104 E5MessageBox.warning( | |
| 105 self, | |
| 106 self.tr("Save Page Screen"), | |
| 107 self.tr("Cannot write file '{0}:\n{1}.") | |
| 108 .format(fileName, file.errorString())) | |
| 109 return False | |
| 110 | |
| 111 res = self.__pagePixmap.save(file) | |
| 112 file.close() | |
| 113 | |
| 114 if not res: | |
| 115 E5MessageBox.warning( | |
| 116 self, | |
| 117 self.tr("Save Page Screen"), | |
| 118 self.tr("Cannot write file '{0}:\n{1}.") | |
| 119 .format(fileName, file.errorString())) | |
| 120 return False | |
| 121 | |
| 122 return True | |
| 123 | |
| 124 @pyqtSlot(QAbstractButton) | |
| 125 def on_buttonBox_clicked(self, button): | |
| 126 """ | |
| 127 Private slot to handle clicks of the dialog buttons. | |
| 128 | |
| 129 @param button button that was clicked (QAbstractButton) | |
| 130 """ | |
| 131 if button == self.buttonBox.button(QDialogButtonBox.Cancel): | |
| 132 self.reject() | |
| 133 elif button == self.buttonBox.button(QDialogButtonBox.Save): | |
| 134 if self.__savePageScreen(): | |
| 135 self.accept() |
