def paint_foreground_cb(self, cr, wd, ht):
"""Fg marker painting, for `ColorAdjusterWidget` impls.
"""
col = HSVColor(color=self.get_managed_color())
col.s = 1.0
radius = self.get_radius(wd, ht, self.BORDER_WIDTH)
cx = int(wd // 2)
cy = int(ht // 2)
cr.arc(cx, cy, radius + 0.5, 0, 2 * math.pi)
cr.clip()
x, y = self.get_pos_for_color(col)
col.s = 0.70
ex, ey = self.get_pos_for_color(col)
cr.set_line_width(5)
cr.move_to(x, y)
cr.line_to(ex, ey)
cr.set_source_rgb(0, 0, 0)
cr.stroke_preserve()
cr.set_source_rgb(1, 1, 1)
cr.set_line_width(3.5)
cr.stroke_preserve()
cr.set_source_rgb(*col.get_rgb())
cr.set_line_width(0.25)
cr.stroke()
def paint_foreground_cb(self, cr, wd, ht):
"""Fg marker painting, for `ColorAdjusterWidget` impls.
"""
col = HSVColor(color=self.get_managed_color())
col.s = 1.0
radius = self.get_radius(wd, ht, self.BORDER_WIDTH)
cx = int(wd // 2)
cy = int(ht // 2)
cr.arc(cx, cy, radius+0.5, 0, 2*math.pi)
cr.clip()
x, y = self.get_pos_for_color(col)
col.s = 0.70
ex, ey = self.get_pos_for_color(col)
cr.set_line_width(5)
cr.move_to(x, y)
cr.line_to(ex, ey)
cr.set_source_rgb(0, 0, 0)
cr.stroke_preserve()
cr.set_source_rgb(1, 1, 1)
cr.set_line_width(3.5)
cr.stroke_preserve()
cr.set_source_rgb(*col.get_rgb())
cr.set_line_width(0.25)
cr.stroke()
def render_background_cb(self, cr, wd, ht, icon_border=None):
col = HSVColor(color=self.get_managed_color())
b = icon_border
if b is None:
b = self.BORDER_WIDTH
eff_wd = int(wd - 2*b)
eff_ht = int(ht - 2*b)
f1, f2 = self.__get_faces()
step = max(1, int(eff_wd // 128))
rect_x, rect_y = int(b)+0.5, int(b)+0.5
rect_w, rect_h = int(eff_wd)-1, int(eff_ht)-1
# Paint the central area offscreen
cr.push_group()
for x in xrange(0, eff_wd, step):
amt = x / eff_wd
setattr(col, f1, amt)
setattr(col, f2, 1.0)
lg = cairo.LinearGradient(b+x, b, b+x, b+eff_ht)
lg.add_color_stop_rgb(*([0.0] + list(col.get_rgb())))
setattr(col, f2, 0.0)
lg.add_color_stop_rgb(*([1.0] + list(col.get_rgb())))
cr.rectangle(b+x, b, step, eff_ht)
cr.set_source(lg)
cr.fill()
slice_patt = cr.pop_group()
# Tango-like outline
cr.set_line_join(cairo.LINE_JOIN_ROUND)
cr.rectangle(rect_x, rect_y, rect_w, rect_h)
cr.set_line_width(self.OUTLINE_WIDTH)
cr.set_source_rgba(*self.OUTLINE_RGBA)
cr.stroke()
# The main area
cr.set_source(slice_patt)
cr.paint()
# Tango-like highlight over the top
cr.rectangle(rect_x, rect_y, rect_w, rect_h)
cr.set_line_width(self.EDGE_HIGHLIGHT_WIDTH)
cr.set_source_rgba(*self.EDGE_HIGHLIGHT_RGBA)
cr.stroke()
def render_background_cb(self, cr, wd, ht, icon_border=None):
col = HSVColor(color=self.get_managed_color())
b = icon_border
if b is None:
b = self.BORDER_WIDTH
eff_wd = int(wd - 2 * b)
eff_ht = int(ht - 2 * b)
f1, f2 = self.__get_faces()
step = max(1, int(eff_wd // 128))
rect_x, rect_y = int(b) + 0.5, int(b) + 0.5
rect_w, rect_h = int(eff_wd) - 1, int(eff_ht) - 1
# Paint the central area offscreen
cr.push_group()
for x in xrange(0, eff_wd, step):
amt = x / eff_wd
setattr(col, f1, amt)
setattr(col, f2, 1.0)
lg = cairo.LinearGradient(b + x, b, b + x, b + eff_ht)
lg.add_color_stop_rgb(*([0.0] + list(col.get_rgb())))
setattr(col, f2, 0.0)
lg.add_color_stop_rgb(*([1.0] + list(col.get_rgb())))
cr.rectangle(b + x, b, step, eff_ht)
cr.set_source(lg)
cr.fill()
slice_patt = cr.pop_group()
# Tango-like outline
cr.set_line_join(cairo.LINE_JOIN_ROUND)
cr.rectangle(rect_x, rect_y, rect_w, rect_h)
cr.set_line_width(self.OUTLINE_WIDTH)
cr.set_source_rgba(*self.OUTLINE_RGBA)
cr.stroke()
# The main area
cr.set_source(slice_patt)
cr.paint()
# Tango-like highlight over the top
cr.rectangle(rect_x, rect_y, rect_w, rect_h)
cr.set_line_width(self.EDGE_HIGHLIGHT_WIDTH)
cr.set_source_rgba(*self.EDGE_HIGHLIGHT_RGBA)
cr.stroke()
