def draw_hlinear(cr, x, y, w, h, color_infos, radius=0, left_to_right=True):
'''
Draw linear area horticulturally.
@param cr: Cairo context.
@param x: X coordinate of draw area.
@param y: Y coordinate of draw area.
@param w: Width of draw area.
@param h: Height of draw area.
@param color_infos: A list of ColorInfo, ColorInfo format: (color_stop_position, (color_hex_value, color_alpha))
@param radius: Rectangle corner radious.
@param left_to_right: Draw direction, default is from left to right, function will draw from right to left if set option as False.
'''
with cairo_state(cr):
# Translate x coordinate, otherwise x is too big for LinearGradient cause render bug.
cr.translate(x, 0)
if left_to_right:
pat = cairo.LinearGradient(0, 0, w, 0)
else:
pat = cairo.LinearGradient(w, 0, 0, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(pat, pos, color_info)
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source(pat)
draw_round_rectangle(cr, 0, y, w, h, radius)
cr.fill()
def draw_hlinear(cr, x, y, w, h, color_infos, radius=0, left_to_right=True):
'''
Draw linear area horticulturally.
@param cr: Cairo context.
@param x: X coordinate of draw area.
@param y: Y coordinate of draw area.
@param w: Width of draw area.
@param h: Height of draw area.
@param color_infos: A list of ColorInfo, ColorInfo format: (color_stop_position, (color_hex_value, color_alpha))
@param radius: Rectangle corner radious.
@param left_to_right: Draw direction, default is from left to right, function will draw from right to left if set option as False.
'''
with cairo_state(cr):
# Translate x coordinate, otherwise x is too big for LinearGradient cause render bug.
cr.translate(x, 0)
if left_to_right:
pat = cairo.LinearGradient(0, 0, w, 0)
else:
pat = cairo.LinearGradient(w, 0, 0, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(pat, pos, color_info)
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source(pat)
draw_round_rectangle(cr, 0, y, w, h, radius)
cr.fill()
def draw_radial_round(cr, x, y, r, color_infos):
'''Draw radial round.'''
radial = cairo.RadialGradient(x, y, r, x, y, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(radial, pos, color_info)
cr.arc(x, y, r, 0, 2 * math.pi)
cr.set_source(radial)
cr.fill()
def draw_radial_round(cr, x, y, r, color_infos):
'''
Draw radial round.
@param cr: Cairo context.
@param x: X coordinate of draw area.
@param y: Y coordinate of draw area.
@param r: Radious of radial round.
@param color_infos: A list of ColorInfo, ColorInfo format: (color_stop_position, (color_hex_value, color_alpha))
'''
radial = cairo.RadialGradient(x, y, r, x, y, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(radial, pos, color_info)
cr.arc(x, y, r, 0, 2 * math.pi)
cr.set_source(radial)
cr.fill()
def draw_radial_round(cr, x, y, r, color_infos):
'''
Draw radial round.
@param cr: Cairo context.
@param x: X coordinate of draw area.
@param y: Y coordinate of draw area.
@param r: Radious of radial round.
@param color_infos: A list of ColorInfo, ColorInfo format: (color_stop_position, (color_hex_value, color_alpha))
'''
radial = cairo.RadialGradient(x, y, r, x, y, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(radial, pos, color_info)
cr.arc(x, y, r, 0, 2 * math.pi)
cr.set_source(radial)
cr.fill()
def draw_hlinear(cr, x, y, w, h, color_infos, radius=0, left_to_right=True):
'''Draw linear rectangle.'''
with cairo_state(cr):
# Translate x coordinate, otherwise x is too big for LinearGradient cause render bug.
cr.translate(x, 0)
if left_to_right:
pat = cairo.LinearGradient(0, 0, w, 0)
else:
pat = cairo.LinearGradient(w, 0, 0, 0)
for (pos, color_info) in color_infos:
add_color_stop_rgba(pat, pos, color_info)
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source(pat)
draw_round_rectangle(cr, 0, y, w, h, radius)
cr.fill()
