本文整理汇总了Python中PyQt5.QtPrintSupport.QPrintPreviewDialog.findChild方法的典型用法代码示例。如果您正苦于以下问题：Python QPrintPreviewDialog.findChild方法的具体用法？Python QPrintPreviewDialog.findChild怎么用？Python QPrintPreviewDialog.findChild使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt5.QtPrintSupport.QPrintPreviewDialog的用法示例。
在下文中一共展示了QPrintPreviewDialog.findChild方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: HtmlView
# 需要导入模块: from PyQt5.QtPrintSupport import QPrintPreviewDialog [as 别名]
# 或者: from PyQt5.QtPrintSupport.QPrintPreviewDialog import findChild [as 别名]
class HtmlView(QWebEngineView):
"""Subclass QWebView and connect to a QPrintPreviewDialog object"""
def __init__(self, parent=None, url = ""):
"""
Constructor of HtmlView
:param parent: parent of the view
:param url: url to load, if set, a loadFInished signal is emitted
"""
super().__init__(parent)
self.html = ""
self.setUrl(QUrl(url))
"""Open QPrintPreviewDialog dialog window"""
self.preview = QPrintPreviewDialog()
# just for the moment / buf in Qt leads to incorrect printing of tables fomr QWebKit
self.preview.printer().setOutputFormat(QPrinter.PdfFormat)
self.preview.printer().setPaperSize(QPrinter.A4)
self.textedit = QTextEdit()
self.preview.paintRequested.connect(self.printPreview)
if url != "":
self.loadFinished.connect(self.execpreview)
def execpreview(self, arg):
self.preview.exec()
def printPreview(self, printer):
self.textedit.print(printer)
def setHtml_(self, html):
self.setHtml(html)
self.textedit.setHtml(html)
# small workaround to find the QPrintPreviewWidget inside the pre-defined dialog and force it to update its content
wdg = self.preview.findChild(PyQt5.QtPrintSupport.QPrintPreviewWidget)
if wdg is not None:
wdg.updatePreview()