本文整理匯總了Python中cairocffi.FORMAT_ARGB32屬性的典型用法代碼示例。如果您正苦於以下問題：Python cairocffi.FORMAT_ARGB32屬性的具體用法？Python cairocffi.FORMAT_ARGB32怎麽用？Python cairocffi.FORMAT_ARGB32使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類cairocffi的用法示例。
在下文中一共展示了cairocffi.FORMAT_ARGB32屬性的8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: draw_image
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def draw_image(self, gc, x, y, im):
# bbox - not currently used
if _debug: print('%s.%s()' % (self.__class__.__name__, _fn_name()))
im.flipud_out()
rows, cols, buf = im.color_conv (BYTE_FORMAT)
surface = cairo.ImageSurface.create_for_data (
buf, cairo.FORMAT_ARGB32, cols, rows, cols*4)
ctx = gc.ctx
y = self.height - y - rows
ctx.save()
ctx.set_source_surface (surface, x, y)
if gc.get_alpha() != 1.0:
ctx.paint_with_alpha(gc.get_alpha())
else:
ctx.paint()
ctx.restore()
im.flipud_out() 示例2: __init__
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def __init__(self, dpi):
self.dpi = dpi
self.gc = GraphicsContextCairo(renderer=self)
self.text_ctx = cairo.Context(
cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1))
self.mathtext_parser = MathTextParser('Cairo')
RendererBase.__init__(self) 示例3: draw_image
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def draw_image(self, gc, x, y, im):
im = cbook._unmultiplied_rgba8888_to_premultiplied_argb32(im[::-1])
surface = cairo.ImageSurface.create_for_data(
im.ravel().data, cairo.FORMAT_ARGB32,
im.shape[1], im.shape[0], im.shape[1] * 4)
ctx = gc.ctx
y = self.height - y - im.shape[0]
ctx.save()
ctx.set_source_surface(surface, float(x), float(y))
ctx.paint()
ctx.restore() 示例4: _get_printed_image_surface
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def _get_printed_image_surface(self):
width, height = self.get_width_height()
renderer = RendererCairo(self.figure.dpi)
renderer.set_width_height(width, height)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
renderer.set_ctx_from_surface(surface)
self.figure.draw(renderer)
return surface 示例5: __init__
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def __init__(self, dpi):
"""
"""
if _debug: print('%s.%s()' % (self.__class__.__name__, _fn_name()))
self.dpi = dpi
self.gc = GraphicsContextCairo (renderer=self)
self.text_ctx = cairo.Context (
cairo.ImageSurface (cairo.FORMAT_ARGB32,1,1))
self.mathtext_parser = MathTextParser('Cairo')
RendererBase.__init__(self) 示例6: print_png
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def print_png(self, fobj, *args, **kwargs):
width, height = self.get_width_height()
renderer = RendererCairo (self.figure.dpi)
renderer.set_width_height (width, height)
surface = cairo.ImageSurface (cairo.FORMAT_ARGB32, width, height)
renderer.set_ctx_from_surface (surface)
self.figure.draw (renderer)
surface.write_to_png (fobj) 示例7: draw_image
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def draw_image(self, gc, x, y, im):
# bbox - not currently used
if sys.byteorder == 'little':
im = im[:, :, (2, 1, 0, 3)]
else:
im = im[:, :, (3, 0, 1, 2)]
if HAS_CAIRO_CFFI:
# cairocffi tries to use the buffer_info from array.array
# that we replicate in ArrayWrapper and alternatively falls back
# on ctypes to get a pointer to the numpy array. This works
# correctly on a numpy array in python3 but not 2.7. We replicate
# the array.array functionality here to get cross version support.
imbuffer = ArrayWrapper(im.flatten())
else:
# pycairo uses PyObject_AsWriteBuffer to get a pointer to the
# numpy array; this works correctly on a regular numpy array but
# not on a py2 memoryview.
imbuffer = im.flatten()
surface = cairo.ImageSurface.create_for_data(
imbuffer, cairo.FORMAT_ARGB32,
im.shape[1], im.shape[0], im.shape[1]*4)
ctx = gc.ctx
y = self.height - y - im.shape[0]
ctx.save()
ctx.set_source_surface(surface, float(x), float(y))
if gc.get_alpha() != 1.0:
ctx.paint_with_alpha(gc.get_alpha())
else:
ctx.paint()
ctx.restore() 示例8: print_png
# 需要導入模塊: import cairocffi [as 別名]
# 或者: from cairocffi import FORMAT_ARGB32 [as 別名]
def print_png(self, fobj, *args, **kwargs):
width, height = self.get_width_height()
renderer = RendererCairo(self.figure.dpi)
renderer.set_width_height(width, height)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
renderer.set_ctx_from_surface(surface)
self.figure.draw(renderer)
surface.write_to_png(fobj)