def paint(cr, size):
def slant_grain(n):
for i in np.linspace(-2.0, +2.0, 2.0*(n+1)):
cr.move_to(-2.0, -2.0+i)
cr.line_to(+2.0, +2.0+i)
def grid_grain(n):
for i in np.linspace(-1.0, +1.0, (n+1)):
cr.move_to(i, -1.0)
cr.line_to(i, +1.0)
cr.move_to(-1.0, i)
cr.line_to(+1.0, i)
if n == 0: return
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source_rgba(
accessors.getitem(foreground_color, 0, 0.0),
accessors.getitem(foreground_color, 1, 0.0),
accessors.getitem(foreground_color, 2, 0.0),
accessors.getitem(foreground_color, 3, 1.0)
)
cr.set_line_width(1.0/(n+1))
grid_grain(n)
def paint(cr, size):
if background_color is not None:
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source_rgba(
accessors.getitem(background_color, 0, 0.0),
accessors.getitem(background_color, 1, 0.0),
accessors.getitem(background_color, 2, 0.0),
accessors.getitem(background_color, 3, 1.0)
)
cr.paint()
def color_modifiers_hsva(self):
color = accessors.getitem(self, "color", None)
color_h = accessors.getitem(color, "h", None)
color_s = accessors.getitem(color, "s", None)
color_v = accessors.getitem(color, "v", None)
color_a = accessors.getitem(color, "a", None)
h = accessors.getattr(color_h, "data", None) if color_h is not None else 1.0
s = accessors.getattr(color_s, "data", None) if color_s is not None else 1.0
v = accessors.getattr(color_v, "data", None) if color_v is not None else 1.0
a = accessors.getattr(color_a, "data", None) if color_a is not None else 1.0
return np.array([h, s, v, a], dtype=np.float32)
def paint(cr, size):
cr.set_operator(cairo.OPERATOR_OVER)
cr.set_source_rgba(
accessors.getitem(background_color, 0, 0.0),
accessors.getitem(background_color, 1, 0.0),
accessors.getitem(background_color, 2, 0.0),
accessors.getitem(background_color, 3, 1.0)
)
cr.paint()
if n == 0: return
cr.set_source_rgba(
accessors.getitem(foreground_color, 0, 0.0),
accessors.getitem(foreground_color, 1, 0.0),
accessors.getitem(foreground_color, 2, 0.0),
accessors.getitem(foreground_color, 3, 1.0)
)
cr.set_line_width(1.0/(n+1))
for i in np.linspace(-1.0, +1.0, (n+1)):
cr.move_to(i, -1.0)
cr.line_to(i, +1.0)
cr.move_to(-1.0, i)
cr.line_to(+1.0, i)
def __getitem__(self, key):
try:
return accessors.getitem(self._data, key)
except KeyError:
result = self._factory(key)
self._data[key] = result
return result
def __delitem__(self, key):
key = str(key)
old_value = accessors.getitem(objects.itemsof(self), key, None)
if old_value is not None:
old_value.data_changed.unsubscribe(_notify)
accessors.delitem(objects.itemsof(self), key)
def get_or_create_axis(self, key, *args, **kwargs):
result = accessors.getitem(self.axes, key, None)
if result is None:
result = Axis(*args, **kwargs)
result.data_changed.subscribe(self.axis_data_changed)
accessors.setitem(self.axes, key, result)
return result
def get_or_create_mark(self, key, *args, **kwargs):
result = accessors.getitem(self.marks, key, None)
if result is None:
result = Mark(*args, **kwargs)
result.data_changed.subscribe(self.mark_data_changed)
accessors.setitem(self.marks, key, result)
return result
def default_properties(cls, obj, options=None):
position = Property(title="Position", type="Vector", default=None, visible=False)
for i in range(defaults.DEFAULT_N):
position[i] = Property(title=str(i), type="Decimal", default=None, visible=False)
size = Property(title="Size", type="Vector", default=None, visible=False)
for i in range(defaults.DEFAULT_N):
size[i] = Property(title=str(i), type="Decimal", default=None, visible=False)
offset = Property(title="Offset", type="Vector", default=None, visible=False)
for i in range(defaults.DEFAULT_N):
offset[i] = Property(title=str(i), type="Decimal", default=None, visible=False)
color = Property(title="Color", type="Color", options=accessors.getitem(options, "color", None))
color["primary"] = Property(title="Primary", type="Color", default="#ffffff", visible=False)
color["secondary"] = Property(title="Secondary", type="Color", default="#ffffff", visible=False)
color["palette"] = Property(title="Palette", type="String", default="brewer.ylgnbu", visible=False)
color["h"] = Property(title="Hue", type="Decimal", default=1.0, visible=False)
color["s"] = Property(title="Saturation", type="Decimal", default=1.0)
color["v"] = Property(title="Value", type="Decimal", default=1.0)
color["a"] = Property(title="Alpha", type="Decimal", default=1.0, visible=False)
shape = Property(title="Shape", type="Shape", options=accessors.getitem(options, "shape", None))
shape["index"] = Property(title="Index", type="Integer", default=0, visible=False)
shape["palette"] = Property(title="Palette", type="String", default="geometric.geometric_black", visible=False)
texture = Property(title="Texture", type="Texture", default=None, options=accessors.getitem(options, "texture", None))
texture["index"] = Property(title="Index", type="Integer", default=0, visible=False)
texture["palette"] = Property(title="Palette", type="String", default="basic.grid", visible=False)
delta_size = Property(title="Size", type="Decimal", default=0.5)
delta_offset = Property(title="Motion", type="Decimal", default=0.0)
label = Property(title="Label", type="String", default="")
obj.setdefault("position", position)
obj.setdefault("size", size)
obj.setdefault("offset", offset)
obj.setdefault("color", color)
obj.setdefault("shape", shape)
obj.setdefault("texture", texture)
obj.setdefault("delta_size", delta_size)
obj.setdefault("delta_offset", delta_offset)
obj.setdefault("label", label)
def __setitem__(self, key, value):
def _notify(obj, key_, value_):
self.data_changed(self, (key,) + key_, value_)
old_value, new_value = accessors.getitem(objects.itemsof(self), key, None), value
if old_value is not None:
old_value.data_changed.unsubscribe(_notify)
accessors.setitem(objects.itemsof(self), key, value)
if new_value is not None:
new_value.data_changed.subscribe(_notify)
def radial_gradient(stops, p0=0.0, r0=0.0, p1=0.0, r1=1.0, **kwargs):
source = cairo.RadialGradient(
accessors.getitem(p0, 0, p0), accessors.getitem(p0, 1, 0.0), r0,
accessors.getitem(p1, 0, p1), accessors.getitem(p1, 1, 0.0), r1
)
for i, color in stops:
source.add_color_stop_rgba(i,
accessors.getitem(color, 0, 0.0),
accessors.getitem(color, 1, 0.0),
accessors.getitem(color, 2, 0.0),
accessors.getitem(color, 3, 1.0)
)
def paint(cr, size):
cr.set_source(source)
cr.paint()
return _normal(paint, **kwargs)
def linear_gradient(stops, p0=-1.0, p1=+1.0, **kwargs):
source = cairo.LinearGradient(
accessors.getitem(p0, 0, p0), accessors.getitem(p0, 1, 0.0),
accessors.getitem(p1, 0, p1), accessors.getitem(p1, 1, 0.0)
)
for i, color in stops:
source.add_color_stop_rgba(i,
accessors.getitem(color, 0, 0.0),
accessors.getitem(color, 1, 0.0),
accessors.getitem(color, 2, 0.0),
accessors.getitem(color, 3, 1.0)
)
def paint(cr, size):
cr.set_source(source)
cr.paint()
return _normal(paint, **kwargs)
def color_a(self):
return accessors.getattr(accessors.getitem(accessors.getitem(self, "color", None), "a", None), "data", None)
def color_secondary_hsva(self):
color = accessors.getitem(self, "color", None)
return self.color_secondary.hsva if color is not None and not color.bound else np.array([0,0,1,1], dtype=np.float32) #np.ones(4, dtype=np.float32)
def color_secondary(self):
from .. import colors
value = accessors.getattr(accessors.getitem(accessors.getitem(self, "color", None), "secondary", None), "data", None)
if isinstance(value, str):
return colors.Color.from_hex(value)
return value
def delta_size(self):
return accessors.getattr(accessors.getitem(self, "delta_size", None), "data", None)
def shape_index(self):
value = accessors.getattr(accessors.getitem(accessors.getitem(self, "shape", None), "index", None), "data", None)
return value
def show_background(self):
return accessors.getattr(accessors.getitem(self, "show_background", None), "data", False)
def show_shading(self):
return accessors.getattr(accessors.getitem(self, "show_shading", None), "data", False)
def default_color_palette(self, value):
return accessors.setattr(accessors.getitem(accessors.getitem(self, "color", None), "palette", None), "default", value)
def title(self):
return accessors.getitem(objects.attrsof(self), "title", str(self.index))
def __getitem__(self, key):
return accessors.getitem(objects.itemsof(self), key)
def texture(self):
return accessors.getattr(accessors.getitem(self, "texture", None), "data", None)
def shape_palettes(self):
from .. import palettes
value = accessors.getattr(accessors.getitem(accessors.getitem(self, "shape", None), "palette", None), "data", None)
return palettes.shape_palettes(value)
def label(self):
return accessors.getattr(accessors.getitem(self, "label", None), "data", None)
def show_overflow(self):
return accessors.getattr(accessors.getitem(self, "show_overflow", None), "data", False)
def delta_offset(self):
return accessors.getattr(accessors.getitem(self, "delta_offset", None), "data", None)
def show_guides(self):
return accessors.getattr(accessors.getitem(self, "show_guides", None), "data", True)
def touch_move(self, value):
try:
accessors.getitem(self._touches, value.identifier)
accessors.setitem(self._touches, value.identifier, value)
except Exception:
pass
def color_palettes(self):
from .. import palettes
value = accessors.getattr(accessors.getitem(accessors.getitem(self, "color", None), "palette", None), "data", None)
return palettes.color_palettes(value)