def draw_icon(ctx, x, y, width, height, rgb, symbol, aspect=1.0, corner_radius=20):
# Draw the bottom Layer:
ctx.set_source_rgb(*rgb)
draw_rounded_rectangle(ctx, x, y, width, height, aspect, corner_radius)
ctx.fill()
# Make the bottom layer fade to the left, upper corner.
add_shadow(ctx, width, height, 0, 0, a1=0.8, a2=0.1)
# Draw the Top-Layer:
ctx.set_source_rgb(*rgb)
draw_rounded_rectangle(
ctx, x + 2, y + 2, width - width / 12, height - height / 12,
aspect, corner_radius
)
ctx.fill()
# ADd some glow point on top:
radial = cairo.RadialGradient(
width / 2, 0,
width / 10000,
width / 2, width / 4,
width / 3 * 2
)
radial.add_color_stop_rgba(0, 1, 1, 1, 0.4)
radial.add_color_stop_rgba(1, 0, 0, 0, 0.1)
ctx.set_source(radial)
ctx.paint()
# Add some nice shadows left and bottom:
add_shadow(ctx, width / 2, height, width / 2, height - height / 4)
add_shadow(ctx, 0, height / 2, width / 7, height / 2)
# Now draw the center text:
for idx, alpha in enumerate([0.5, 0.9]):
ctx.set_source_rgba(idx, idx, idx, alpha)
offset = height / 7 * (1 - idx)
draw_center_text(
ctx, width - offset, height - 0.5 * offset,
symbol, font_size=height * 0.6
)
def _render_missing(self, widget, ctx):
alloc = self.get_allocation()
w, h = alloc.width, alloc.height
widget.set_size_request(w - w / 10, h - h / 10)
ctx.set_source_rgba(0, 0, 0, 0.1)
draw_center_text(ctx, w, h, 'тНи', font_size=300)