def render(self, graphics, width = None, height = None, x_offset = 0, y_offset = 0):
graphics.save_context( )
graphics.translate( x_offset, y_offset )
graphics.rectangle( 0, 0, width or self.width, height or self.height)
graphics.clip()
graphics.set_source_surface(self.image_data)
graphics.paint()
graphics.restore_context()
def put_pattern(image, x, y, w, h):
pattern = cairo.SurfacePattern(image[0])
if w > 0 and h > 0:
pattern.set_matrix(cairo.Matrix(x0=1, y0=1, xx = (image[1]) / float(w), yy = (image[2]) / float(h)))
graphics.save_context()
graphics.translate(x, y)
graphics.set_source(pattern)
graphics.rectangle(0, 0, w, h)
graphics.fill()
graphics.restore_context()
def put_pattern(image, x, y, w, h):
pattern = cairo.SurfacePattern(image[0])
if w > 0 and h > 0:
pattern.set_matrix(
cairo.Matrix(x0=1,
y0=1,
xx=(image[1]) / float(w),
yy=(image[2]) / float(h)))
graphics.save_context()
graphics.translate(x, y)
graphics.set_source(pattern)
graphics.rectangle(0, 0, w, h)
graphics.fill()
graphics.restore_context()
def put_pattern(image, x, y, w, h):
if w <= 0 or h <= 0:
return
graphics.save_context()
if not self.stretch_w or not self.stretch_h:
# if we repeat then we have to cut off the top-left margin
# that we put in there so that stretching does not borrow white
# pixels
img = cairo.ImageSurface(cairo.FORMAT_ARGB32, image[1], image[2])
ctx = cairo.Context(img)
ctx.set_source_surface(image[0],
0 if self.stretch_w else -1,
0 if self.stretch_h else -1)
ctx.rectangle(0, 0, image[1], image[2])
ctx.clip()
ctx.paint()
else:
img = image[0]
pattern = cairo.SurfacePattern(img)
pattern.set_extend(cairo.EXTEND_REPEAT)
pattern.set_matrix(cairo.Matrix(x0 = 1 if self.stretch_w else 0,
y0 = 1 if self.stretch_h else 0,
xx = (image[1]) / float(w) if self.stretch_w else 1,
yy = (image[2]) / float(h) if self.stretch_h else 1))
pattern.set_filter(self.stretch_filter_mode)
# truncating as fill on half pixel will lead to nasty gaps
graphics.translate(int(x + x_offset), int(y + y_offset))
graphics.set_source(pattern)
graphics.rectangle(0, 0, int(w), int(h))
graphics.clip()
graphics.paint()
graphics.restore_context()
def render(self, graphics, width, height, x_offset=0, y_offset=0):
"""renders the image in the given graphics context with the told width
and height"""
def put_pattern(image, x, y, w, h):
if w <= 0 or h <= 0:
return
graphics.save_context()
if not self.stretch_w or not self.stretch_h:
# if we repeat then we have to cut off the top-left margin
# that we put in there so that stretching does not borrow white
# pixels
img = cairo.ImageSurface(cairo.FORMAT_ARGB32, image[1], image[2])
ctx = cairo.Context(img)
ctx.set_source_surface(image[0],
0 if self.stretch_w else -1,
0 if self.stretch_h else -1)
ctx.rectangle(0, 0, image[1], image[2])
ctx.clip()
ctx.paint()
else:
img = image[0]
pattern = cairo.SurfacePattern(img)
pattern.set_extend(cairo.EXTEND_REPEAT)
pattern.set_matrix(cairo.Matrix(x0 = 1 if self.stretch_w else 0,
y0 = 1 if self.stretch_h else 0,
xx = (image[1]) / float(w) if self.stretch_w else 1,
yy = (image[2]) / float(h) if self.stretch_h else 1))
pattern.set_filter(self.stretch_filter_mode)
# truncating as fill on half pixel will lead to nasty gaps
graphics.translate(int(x + x_offset), int(y + y_offset))
graphics.set_source(pattern)
graphics.rectangle(0, 0, int(w), int(h))
graphics.clip()
graphics.paint()
graphics.restore_context()
graphics.save_context()
left, right, = self.left, self.right
top, bottom = self.top, self.bottom
# top-left
put_pattern(self.slices[0], 0, 0, left, top)
# top center - repeat width
put_pattern(self.slices[1], left, 0, width - left - right, top)
# top-right
put_pattern(self.slices[2], width - right, 0, right, top)
# left - repeat height
put_pattern(self.slices[3], 0, top, left, height - top - bottom)
# center - repeat width and height
put_pattern(self.slices[4], left, top, width - left - right, height - top - bottom)
# right - repeat height
put_pattern(self.slices[5], width - right, top, right, height - top - bottom)
# bottom-left
put_pattern(self.slices[6], 0, height - bottom, left, bottom)
# bottom center - repeat width
put_pattern(self.slices[7], left, height - bottom, width - left - right, bottom)
# bottom-right
put_pattern(self.slices[8], width - right, height - bottom, right, bottom)
graphics.rectangle(x_offset, y_offset, width, height)
graphics.new_path()
graphics.restore_context()