本文整理汇总了Python中cairo.OPERATOR_SOURCE属性的典型用法代码示例。如果您正苦于以下问题：Python cairo.OPERATOR_SOURCE属性的具体用法？Python cairo.OPERATOR_SOURCE怎么用？Python cairo.OPERATOR_SOURCE使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类cairo的用法示例。
在下文中一共展示了cairo.OPERATOR_SOURCE属性的5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: draw_line
# 需要导入模块: import cairo [as 别名]
# 或者: from cairo import OPERATOR_SOURCE [as 别名]
def draw_line(self, ctx, x, y, width, height):
"""! Draw Line
@param self this object
@param ctx ctx
@param x x
@param y y
@param width width
@param height height
@return none
"""
ctx.move_to(x, y)
ctx.rel_line_to(width, height)
ctx.close_path()
ctx.set_operator(cairo.OPERATOR_SOURCE)
ctx.set_line_width(1.0)
ctx.set_source_rgb(0, 0, 0)
ctx.stroke() 示例2: draw_line
# 需要导入模块: import cairo [as 别名]
# 或者: from cairo import OPERATOR_SOURCE [as 别名]
def draw_line(self, ctx, x, y, width, height):
ctx.move_to(x, y)
ctx.rel_line_to(width, height)
ctx.close_path()
ctx.set_operator(cairo.OPERATOR_SOURCE)
ctx.set_line_width(1.0)
ctx.set_source_rgb(0, 0, 0)
ctx.stroke() 示例3: __svgToSurface
# 需要导入模块: import cairo [as 别名]
# 或者: from cairo import OPERATOR_SOURCE [as 别名]
def __svgToSurface(self, svg, width, height):
assert isinstance(width, int)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
context = cairo.Context(surface)
context.set_operator(cairo.OPERATOR_SOURCE)
if svg.props.width != width or svg.props.height != height:
context.scale(width / float(svg.props.width),
height / float(svg.props.height))
svg.render_cairo(context)
return surface 示例4: draw_background
# 需要导入模块: import cairo [as 别名]
# 或者: from cairo import OPERATOR_SOURCE [as 别名]
def draw_background(self, widget, context):
# setup a semi-transparent background
context.set_source_rgba(0, 0, 0, config["main-opacity"])
context.set_operator(cairo.OPERATOR_SOURCE)
context.paint()
context.set_operator(cairo.OPERATOR_OVER) 示例5: use_pango_font
# 需要导入模块: import cairo [as 别名]
# 或者: from cairo import OPERATOR_SOURCE [as 别名]
def use_pango_font(font, start, count, will_call_prepost=False):
import pango, cairo, pangocairo
fontDesc = pango.FontDescription(font)
a = array.array('b', itertools.repeat(0, 256 * 256))
surface = cairo.ImageSurface.create_for_data(a, cairo.FORMAT_A8, 256, 256)
context = pangocairo.CairoContext(cairo.Context(surface))
layout = context.create_layout()
fontmap = pangocairo.cairo_font_map_get_default()
font = fontmap.load_font(fontmap.create_context(), fontDesc)
layout.set_font_description(fontDesc)
metrics = font.get_metrics()
descent = metrics.get_descent()
d = pango.PIXELS(descent)
linespace = metrics.get_ascent() + metrics.get_descent()
width = metrics.get_approximate_char_width()
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT)
glPixelStorei(GL_UNPACK_SWAP_BYTES, 0)
glPixelStorei(GL_UNPACK_LSB_FIRST, 1)
glPixelStorei(GL_UNPACK_ROW_LENGTH, 256)
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 256)
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0)
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0)
glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0)
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
glPixelZoom(1, -1)
base = glGenLists(count)
for i in range(count):
ch = unichr(start + i)
layout.set_text(ch)
w, h = layout.get_size()
context.save()
context.new_path()
context.rectangle(0, 0, 256, 256)
context.set_source_rgba(0., 0., 0., 0.)
context.set_operator(cairo.OPERATOR_SOURCE);
context.paint()
context.restore()
context.save()
context.set_source_rgba(1., 1., 1., 1.)
context.set_operator(cairo.OPERATOR_SOURCE);
context.move_to(0, 0)
context.update_layout(layout)
context.show_layout(layout)
context.restore()
w, h = pango.PIXELS(w), pango.PIXELS(h)
glNewList(base + i, GL_COMPILE)
glBitmap(0, 0, 0, 0, 0, h - d, '');
if not will_call_prepost: pango_font_pre()
if w and h: glDrawPixels(w, h, GL_LUMINANCE, GL_UNSIGNED_BYTE, a)
glBitmap(0, 0, 0, 0, w, -h + d, '');
if not will_call_prepost: pango_font_post()
glEndList()
glPopClientAttrib()
return base, pango.PIXELS(width), pango.PIXELS(linespace)