def clean(self):
from impositions import utils
# make sure color values are valid
if self.allowed_colors:
colors = []
for c in self.allowed_colors.split(','):
try:
colors.append(utils.parse_color(c, True))
except ValueError, e:
raise ValidationError(str(e))
self.allowed_colors = ','.join(colors)
def clean(self):
from impositions import utils
# make sure color values are valid
if self.color_palette:
palette = []
for c in self.color_palette.split(','):
try:
palette.append(utils.parse_color(c, True))
except ValueError, e:
raise ValidationError(str(e))
self.color_palette = ','.join(palette)
def render_text_region(self, region):
x, y = region.template_region.left, region.template_region.top
self.cr.move_to(x, y)
pc_context = pangocairo.CairoContext(self.cr)
pc_context.set_antialias(cairo.ANTIALIAS_SUBPIXEL)
# setup pango layout
layout = pc_context.create_layout()
font_size = float(region.get_font_size()) * FONT_SCALE
font_desc = '{} {}'.format(region.get_font(), font_size)
font = pango.FontDescription(font_desc)
layout.set_font_description(font)
# if a width is given, set width and word wrap
if region.template_region.width:
layout.set_width(region.template_region.width * pango.SCALE)
layout.set_wrap(pango.WRAP_WORD)
content = region.text
if not region.template_region.allow_markup:
content = re.sub(r'<[^>]*?>', '', content)
# construct surrounding span tag if any style attrs were given
style = region.template_region.text_style
if style:
content = '<span {}>{}</span>'.format(style, content)
if region.template_region.text_align == 'JUSTIFY':
layout.set_justify(True)
else:
align = region.template_region.text_align or 'LEFT'
layout.set_alignment(getattr(pango, 'ALIGN_{}'.format(align)))
layout.set_markup(content)
rgb = (0,0,0)
color = region.get_fg_color()
if color:
rgb = utils.parse_color(color)
self.cr.set_source_rgb(*[int(c) for c in rgb])
pc_context.update_layout(layout)
pc_context.show_layout(layout)
