本文整理匯總了Python中PyQt5.Qt.QTransform.fromTranslate方法的典型用法代碼示例。如果您正苦於以下問題：Python QTransform.fromTranslate方法的具體用法？Python QTransform.fromTranslate怎麽用？Python QTransform.fromTranslate使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類PyQt5.Qt.QTransform的用法示例。
在下文中一共展示了QTransform.fromTranslate方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: resolve_fill
# 需要導入模塊: from PyQt5.Qt import QTransform [as 別名]
# 或者: from PyQt5.Qt.QTransform import fromTranslate [as 別名]
def resolve_fill(self, rect, pdf_system, qt_system):
'''
Qt's paint system does not update brushOrigin when using
TexturePatterns and it also uses TexturePatterns to emulate gradients,
leading to brokenness. So this method allows the paint engine to update
the brush origin before painting an object. While not perfect, this is
better than nothing. The problem is that if the rect being filled has a
border, then QtWebKit generates an image of the rect size - border but
fills the full rect, and there's no way for the paint engine to know
that and adjust the brush origin.
'''
if not hasattr(self, 'last_fill') or not self.current_state.do_fill:
return
if isinstance(self.last_fill.brush, TexturePattern):
tl = rect.topLeft()
if tl == self.last_fill.origin:
return
matrix = (QTransform.fromTranslate(tl.x(), tl.y())
* pdf_system * qt_system.inverted()[0])
pat = TexturePattern(None, matrix, self.pdf, clone=self.last_fill.brush)
pattern = self.pdf.add_pattern(pat)
self.pdf.apply_fill(self.last_fill.color, pattern)示例2: convert_brush
# 需要導入模塊: from PyQt5.Qt import QTransform [as 別名]
# 或者: from PyQt5.Qt.QTransform import fromTranslate [as 別名]
def convert_brush(self, brush, brush_origin, global_opacity,
pdf_system, qt_system):
# Convert a QBrush to PDF operators
style = brush.style()
pdf = self.pdf
pattern = color = pat = None
opacity = global_opacity
do_fill = True
matrix = (QTransform.fromTranslate(brush_origin.x(), brush_origin.y())
* pdf_system * qt_system.inverted()[0])
vals = list(brush.color().getRgbF())
self.brushobj = None
if style <= Qt.DiagCrossPattern:
opacity *= vals[-1]
color = vals[:3]
if style > Qt.SolidPattern:
pat = QtPattern(style, matrix)
elif style == Qt.TexturePattern:
pat = TexturePattern(brush.texture(), matrix, pdf)
if pat.paint_type == 2:
opacity *= vals[-1]
color = vals[:3]
elif style == Qt.LinearGradientPattern:
pat = LinearGradientPattern(brush, matrix, pdf, self.page_width_px,
self.page_height_px)
opacity *= pat.const_opacity
# TODO: Add support for radial/conical gradient fills
if opacity < 1e-4 or style == Qt.NoBrush:
do_fill = False
self.brushobj = Brush(brush_origin, pat, color)
if pat is not None:
pattern = pdf.add_pattern(pat)
return color, opacity, pattern, do_fill