class _IconBuffer(object):
_surface_cache = LRU(50)
_loader = _SVGLoader()
def __init__(self):
self.icon_name = None
self.icon_size = None
self.file_name = None
self.fill_color = None
self.background_color = None
self.stroke_color = None
self.badge_name = None
self.width = None
self.height = None
self.cache = False
self.scale = 1.0
def _get_cache_key(self, sensitive):
if self.background_color is None:
color = None
else:
color = (self.background_color.red, self.background_color.green,
self.background_color.blue)
return (self.icon_name, self.file_name, self.fill_color,
self.stroke_color, self.badge_name, self.width, self.height,
color, sensitive)
def _load_svg(self, file_name):
entities = {}
if self.fill_color:
entities['fill_color'] = self.fill_color
if self.stroke_color:
entities['stroke_color'] = self.stroke_color
return self._loader.load(file_name, entities, self.cache)
def _get_attach_points(self, info, size_request):
has_attach_points_, attach_points = info.get_attach_points()
if attach_points:
attach_x = float(attach_points[0].x) / size_request
attach_y = float(attach_points[0].y) / size_request
else:
attach_x = attach_y = 0
return attach_x, attach_y
def _get_icon_info(self, file_name, icon_name):
icon_info = _IconInfo()
if file_name:
icon_info.file_name = file_name
elif icon_name:
theme = Gtk.IconTheme.get_default()
size = 50
if self.width is not None:
size = self.width
info = theme.lookup_icon(icon_name, int(size), 0)
if info:
attach_x, attach_y = self._get_attach_points(info, size)
icon_info.file_name = info.get_filename()
icon_info.attach_x = attach_x
icon_info.attach_y = attach_y
del info
else:
logging.warning('No icon with the name %s was found in the '
'theme.', icon_name)
return icon_info
def _draw_badge(self, context, size, sensitive, widget):
theme = Gtk.IconTheme.get_default()
badge_info = theme.lookup_icon(self.badge_name, int(size), 0)
if badge_info:
badge_file_name = badge_info.get_filename()
if badge_file_name.endswith('.svg'):
handle = self._loader.load(badge_file_name, {}, self.cache)
icon_width = handle.props.width
icon_height = handle.props.height
pixbuf = handle.get_pixbuf()
else:
pixbuf = GdkPixbuf.Pixbuf.new_from_file(badge_file_name)
icon_width = pixbuf.get_width()
icon_height = pixbuf.get_height()
context.scale(float(size) / icon_width,
float(size) / icon_height)
if not sensitive:
pixbuf = self._get_insensitive_pixbuf(pixbuf, widget)
Gdk.cairo_set_source_pixbuf(context, pixbuf, 0, 0)
context.paint()
def _get_size(self, icon_width, icon_height, padding):
if self.width is not None and self.height is not None:
width = self.width + padding
height = self.height + padding
else:
width = icon_width + padding
height = icon_height + padding
return width, height
def _get_badge_info(self, icon_info, icon_width, icon_height):
info = _BadgeInfo()
if self.badge_name is None:
return info
info.size = int(_BADGE_SIZE * icon_width)
info.attach_x = int(icon_info.attach_x * icon_width - info.size / 2)
info.attach_y = int(icon_info.attach_y * icon_height - info.size / 2)
if info.attach_x < 0 or info.attach_y < 0:
info.icon_padding = max(-info.attach_x, -info.attach_y)
elif info.attach_x + info.size > icon_width or \
info.attach_y + info.size > icon_height:
x_padding = info.attach_x + info.size - icon_width
y_padding = info.attach_y + info.size - icon_height
info.icon_padding = max(x_padding, y_padding)
return info
def _get_xo_color(self):
if self.stroke_color and self.fill_color:
return XoColor('%s,%s' % (self.stroke_color, self.fill_color))
else:
return None
def _set_xo_color(self, xo_color):
if xo_color:
self.stroke_color = xo_color.get_stroke_color()
self.fill_color = xo_color.get_fill_color()
else:
self.stroke_color = None
self.fill_color = None
def _get_insensitive_pixbuf(self, pixbuf, widget):
if not (widget and widget.get_style()):
return pixbuf
icon_source = Gtk.IconSource()
# Special size meaning "don't touch"
icon_source.set_size(-1)
icon_source.set_pixbuf(pixbuf)
icon_source.set_state(Gtk.StateType.INSENSITIVE)
icon_source.set_direction_wildcarded(False)
icon_source.set_size_wildcarded(False)
widget_style = widget.get_style()
pixbuf = widget_style.render_icon(
icon_source, widget.get_direction(),
Gtk.StateType.INSENSITIVE, -1, widget,
'sugar-icon')
return pixbuf
def get_surface(self, sensitive=True, widget=None):
cache_key = self._get_cache_key(sensitive)
if cache_key in self._surface_cache:
return self._surface_cache[cache_key]
# We run two attempts at finding the icon. First, we try the icon
# requested by the user. If that fails, we fall back on
# document-generic. If that doesn't work out, bail.
icon_width = None
for (file_name, icon_name) in ((self.file_name, self.icon_name),
(None, 'document-generic')):
icon_info = self._get_icon_info(file_name, icon_name)
if icon_info.file_name is None:
return None
is_svg = icon_info.file_name.endswith('.svg')
if is_svg:
try:
handle = self._load_svg(icon_info.file_name)
icon_width = handle.props.width
icon_height = handle.props.height
break
except IOError:
pass
else:
try:
path = icon_info.file_name
pixbuf = GdkPixbuf.Pixbuf.new_from_file(path)
icon_width = pixbuf.get_width()
icon_height = pixbuf.get_height()
break
except GObject.GError:
pass
if icon_width is None:
# Neither attempt found an icon for us to use
return None
badge_info = self._get_badge_info(icon_info, icon_width, icon_height)
padding = badge_info.icon_padding
width, height = self._get_size(icon_width, icon_height, padding)
if self.background_color is None:
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(width),
int(height))
context = cairo.Context(surface)
else:
surface = cairo.ImageSurface(cairo.FORMAT_RGB24, int(width),
int(height))
context = cairo.Context(surface)
context.set_source_color(self.background_color)
context.paint()
context.scale(float(width) / (icon_width + padding * 2),
float(height) / (icon_height + padding * 2))
context.save()
context.translate(padding, padding)
if is_svg:
if sensitive:
handle.render_cairo(context)
else:
pixbuf = handle.get_pixbuf()
pixbuf = self._get_insensitive_pixbuf(pixbuf, widget)
Gdk.cairo_set_source_pixbuf(context, pixbuf, 0, 0)
context.paint()
else:
if not sensitive:
pixbuf = self._get_insensitive_pixbuf(pixbuf, widget)
Gdk.cairo_set_source_pixbuf(context, pixbuf, 0, 0)
context.paint()
if self.badge_name:
context.restore()
context.translate(badge_info.attach_x, badge_info.attach_y)
self._draw_badge(context, badge_info.size, sensitive, widget)
self._surface_cache[cache_key] = surface
return surface
xo_color = property(_get_xo_color, _set_xo_color)
self.props['front_text']['card_text'] = newtext
self._cached_surface[True] = None
self.queue_draw()
def get_text(self):
return self.props['front_text'].get('card_text', '')
def change_speak(self, value):
self.props['front_text']['speak'] = value
def get_speak(self):
return self.props['front_text'].get('speak')
def draw_round_rect(self, context, x, y, w, h, r):
context.move_to(x + r, y)
context.line_to(x + w - r, y)
context.curve_to(x + w, y, x + w, y, x + w, y + r)
context.line_to(x + w, y + h - r)
context.curve_to(x + w, y + h, x + w, y + h, x + w - r, y + h)
context.line_to(x + r, y + h)
context.curve_to(x, y + h, x, y + h, x, y + h - r)
context.line_to(x, y + r)
context.curve_to(x, y, x, y, x + r, y)
def PIXELS_PANGO(x):
return x * 1000
_text_layout_cache = LRU(50)
def __init__(self):
self._cache = LRU(50)
