本文整理汇总了Python中PyQt5.QtWebKitWidgets.QWebPage.settings方法的典型用法代码示例。如果您正苦于以下问题：Python QWebPage.settings方法的具体用法？Python QWebPage.settings怎么用？Python QWebPage.settings使用的例子？那么恭喜您, 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.QtWebKitWidgets.QWebPage的用法示例。
在下文中一共展示了QWebPage.settings方法的2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: render_html
# 需要导入模块: from PyQt5.QtWebKitWidgets import QWebPage [as 别名]
# 或者: from PyQt5.QtWebKitWidgets.QWebPage import settings [as 别名]
def render_html(path_to_html, width=590, height=750, as_xhtml=True):
from PyQt5.QtWebKitWidgets import QWebPage
from PyQt5.Qt import QEventLoop, QPalette, Qt, QUrl, QSize
from calibre.gui2 import is_ok_to_use_qt
if not is_ok_to_use_qt():
return None
path_to_html = os.path.abspath(path_to_html)
with CurrentDir(os.path.dirname(path_to_html)):
page = QWebPage()
settings = page.settings()
settings.setAttribute(settings.PluginsEnabled, False)
pal = page.palette()
pal.setBrush(QPalette.Background, Qt.white)
page.setPalette(pal)
page.setViewportSize(QSize(width, height))
page.mainFrame().setScrollBarPolicy(Qt.Vertical, Qt.ScrollBarAlwaysOff)
page.mainFrame().setScrollBarPolicy(Qt.Horizontal, Qt.ScrollBarAlwaysOff)
loop = QEventLoop()
renderer = HTMLRenderer(page, loop)
page.loadFinished.connect(renderer, type=Qt.QueuedConnection)
if as_xhtml:
page.mainFrame().setContent(open(path_to_html, 'rb').read(),
'application/xhtml+xml', QUrl.fromLocalFile(path_to_html))
else:
page.mainFrame().load(QUrl.fromLocalFile(path_to_html))
loop.exec_()
renderer.loop = renderer.page = None
page.loadFinished.disconnect()
del page
del loop
if isinstance(renderer.exception, ParserError) and as_xhtml:
return render_html(path_to_html, width=width, height=height,
as_xhtml=False)
return renderer示例2: HTMLTableRenderer
# 需要导入模块: from PyQt5.QtWebKitWidgets import QWebPage [as 别名]
# 或者: from PyQt5.QtWebKitWidgets.QWebPage import settings [as 别名]
class HTMLTableRenderer(QObject):
def __init__(self, html, base_dir, width, height, dpi, factor):
'''
`width, height`: page width and height in pixels
`base_dir`: The directory in which the HTML file that contains the table resides
'''
from calibre.gui2 import secure_web_page
QObject.__init__(self)
self.app = None
self.width, self.height, self.dpi = width, height, dpi
self.base_dir = base_dir
self.images = []
self.tdir = tempfile.mkdtemp(prefix='calibre_render_table')
self.loop = QEventLoop()
self.page = QWebPage()
secure_web_page(self.page.settings())
self.page.loadFinished.connect(self.render_html)
self.page.mainFrame().setTextSizeMultiplier(factor)
self.page.mainFrame().setHtml(html,
QUrl('file:'+os.path.abspath(self.base_dir)))
def render_html(self, ok):
try:
if not ok:
return
cwidth, cheight = self.page.mainFrame().contentsSize().width(), self.page.mainFrame().contentsSize().height()
self.page.setViewportSize(QSize(cwidth, cheight))
factor = float(self.width)/cwidth if cwidth > self.width else 1
cutoff_height = int(self.height/factor)-3
image = QImage(self.page.viewportSize(), QImage.Format_ARGB32)
image.setDotsPerMeterX(self.dpi*(100/2.54))
image.setDotsPerMeterY(self.dpi*(100/2.54))
painter = QPainter(image)
self.page.mainFrame().render(painter)
painter.end()
cheight = image.height()
cwidth = image.width()
pos = 0
while pos < cheight:
img = image.copy(0, pos, cwidth, min(cheight-pos, cutoff_height))
pos += cutoff_height-20
if cwidth > self.width:
img = img.scaledToWidth(self.width, Qt.SmoothTransform)
f = os.path.join(self.tdir, '%d.png'%pos)
img.save(f)
self.images.append((f, img.width(), img.height()))
finally:
QApplication.quit()