Mercurial Repositories > eric / file comparison
comparison: eric7/WebBrowser/PageScreenDialog.py
eric7/WebBrowser/PageScreenDialog.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8227
- 349308e84eeb
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 - 2021 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 PyQt5.QtCore import pyqtSlot, Qt, QFile, QFileInfo, QSize | |
| 11 from PyQt5.QtGui import QImage, QPainter, QPixmap | |
| 12 from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QAbstractButton | |
| 13 | |
| 14 from E5Gui import E5FileDialog, E5MessageBox | |
| 15 | |
| 16 from .Ui_PageScreenDialog import Ui_PageScreenDialog | |
| 17 | |
| 18 | |
| 19 class PageScreenDialog(QDialog, Ui_PageScreenDialog): | |
| 20 """ | |
| 21 Class implementing a dialog to save a screenshot of a web page. | |
| 22 """ | |
| 23 def __init__(self, view, parent=None): | |
| 24 """ | |
| 25 Constructor | |
| 26 | |
| 27 @param view reference to the web view containing the page to be saved | |
| 28 (WebBrowserView) | |
| 29 @param parent reference to the parent widget (QWidget) | |
| 30 """ | |
| 31 super().__init__(parent) | |
| 32 self.setupUi(self) | |
| 33 self.setWindowFlags(Qt.WindowType.Window) | |
| 34 | |
| 35 self.__view = view | |
| 36 self.__createPixmap() | |
| 37 self.pageScreenLabel.setPixmap(self.__pagePixmap) | |
| 38 | |
| 39 def __createPixmap(self): | |
| 40 """ | |
| 41 Private slot to create a pixmap of the associated view's page. | |
| 42 """ | |
| 43 res = self.__view.page().execJavaScript( | |
| 44 "(function() {" | |
| 45 "var res = {" | |
| 46 " width: 0," | |
| 47 " height: 0," | |
| 48 "};" | |
| 49 "res.width = document.body.scrollWidth;" | |
| 50 "res.height = document.body.scrollHeight;" | |
| 51 "return res;" | |
| 52 "})()" | |
| 53 ) | |
| 54 if res is not None: | |
| 55 image = QImage(QSize(res["width"], self.__view.height()), | |
| 56 QImage.Format.Format_ARGB32) | |
| 57 painter = QPainter(image) | |
| 58 self.__view.render(painter) | |
| 59 painter.end() | |
| 60 | |
| 61 self.__pagePixmap = QPixmap.fromImage(image) | |
| 62 | |
| 63 def __savePageScreen(self): | |
| 64 """ | |
| 65 Private slot to save the page screen. | |
| 66 | |
| 67 @return flag indicating success (boolean) | |
| 68 """ | |
| 69 fileName = E5FileDialog.getSaveFileName( | |
| 70 self, | |
| 71 self.tr("Save Page Screen"), | |
| 72 self.tr("screen.png"), | |
| 73 self.tr("Portable Network Graphics File (*.png)"), | |
| 74 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 75 if not fileName: | |
| 76 return False | |
| 77 | |
| 78 if QFileInfo(fileName).exists(): | |
| 79 res = E5MessageBox.yesNo( | |
| 80 self, | |
| 81 self.tr("Save Page Screen"), | |
| 82 self.tr("<p>The file <b>{0}</b> already exists." | |
| 83 " Overwrite it?</p>").format(fileName), | |
| 84 icon=E5MessageBox.Warning) | |
| 85 if not res: | |
| 86 return False | |
| 87 | |
| 88 file = QFile(fileName) | |
| 89 if not file.open(QFile.WriteOnly): | |
| 90 E5MessageBox.warning( | |
| 91 self, | |
| 92 self.tr("Save Page Screen"), | |
| 93 self.tr("Cannot write file '{0}:\n{1}.") | |
| 94 .format(fileName, file.errorString())) | |
| 95 return False | |
| 96 | |
| 97 res = self.__pagePixmap.save(file) | |
| 98 file.close() | |
| 99 | |
| 100 if not res: | |
| 101 E5MessageBox.warning( | |
| 102 self, | |
| 103 self.tr("Save Page Screen"), | |
| 104 self.tr("Cannot write file '{0}:\n{1}.") | |
| 105 .format(fileName, file.errorString())) | |
| 106 return False | |
| 107 | |
| 108 return True | |
| 109 | |
| 110 @pyqtSlot(QAbstractButton) | |
| 111 def on_buttonBox_clicked(self, button): | |
| 112 """ | |
| 113 Private slot to handle clicks of the dialog buttons. | |
| 114 | |
| 115 @param button button that was clicked (QAbstractButton) | |
| 116 """ | |
| 117 if button == self.buttonBox.button( | |
| 118 QDialogButtonBox.StandardButton.Cancel | |
| 119 ): | |
| 120 self.reject() | |
| 121 elif ( | |
| 122 button == self.buttonBox.button( | |
| 123 QDialogButtonBox.StandardButton.Save) and | |
| 124 self.__savePageScreen() | |
| 125 ): | |
| 126 self.accept() |
