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#!/usr/bin/env python
# coding=utf-8
"""
synfig_fileformat.py
Synfig file format utilities
Copyright (C) 2011 Nikita Kitaev
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
"""
# ##### Constants ##########################################
kux = 60.0 # Number of SVG units (pixels) per Synfig "unit"
gamma = 1.0
tangent_scale = 3.0 # Synfig tangents are scaled by a factor of 3
# ##### Layer parameters, types, and default values ########
layers = {}
# Layer_Composite is the parent of most layers
default_composite = {
"z_depth": ["real", 0.0],
"amount": ["real", 1.0],
"blend_method": ["integer", 0],
}
layers["PasteCanvas"] = default_composite.copy()
layers["PasteCanvas"].update(
{
"origin": ["vector", [0.0, 0.0]],
"canvas": ["canvas", None],
"zoom": ["real", 0.0],
"time_offset": ["time", "0s"],
"children_lock": ["bool", False],
"focus": ["vector", [0.0, 0.0]],
}
)
# Layers in mod_geometry
layers["circle"] = default_composite.copy()
layers["circle"].update(
{
"color": ["color", [0, 0, 0, 1]],
"radius": ["real", 1.0],
"feather": ["real", 0.0],
"origin": ["vector", [0.0, 0.0]],
"invert": ["bool", False],
}
)
layers["rectangle"] = default_composite.copy()
layers["rectangle"].update(
{
"color": ["color", [0, 0, 0, 1]],
"point1": ["vector", [0, 0]],
"point2": ["vector", [1, 1]],
"expand": ["real", 0.0],
"invert": ["bool", False],
}
)
default_shape = default_composite.copy()
default_shape.update(
{
"color": ["color", [0, 0, 0, 1]],
"origin": ["vector", [0.0, 0.0]],
"invert": ["bool", False],
"antialias": ["bool", True],
"feather": ["real", 0.0],
"blurtype": ["integer", 1],
"winding_style": ["integer", 0],
}
)
layers["region"] = default_shape.copy()
layers["region"].update({"bline": ["bline", None]})
layers["outline"] = default_shape.copy()
layers["outline"].update(
{
"bline": ["bline", None],
"round_tip[0]": ["bool", True],
"round_tip[1]": ["bool", True],
"sharp_cusps": ["bool", True],
"width": ["real", 1.0],
"loopyness": ["real", 1.0],
"expand": ["real", 0.0],
"homogeneous_width": ["bool", True],
}
)
# Layers in mod_gradient
layers["linear_gradient"] = default_composite.copy()
layers["linear_gradient"].update(
{
"p1": ["vector", [0, 0]],
"p2": ["vector", [1, 1]],
"gradient": ["gradient", {0.0: [0, 0, 0, 1], 1.0: [1, 1, 1, 1]}],
"loop": ["bool", False],
"zigzag": ["bool", False],
}
)
layers["radial_gradient"] = default_composite.copy()
layers["radial_gradient"].update(
{
"gradient": ["gradient", {0.0: [0, 0, 0, 1], 1.0: [1, 1, 1, 1]}],
"center": ["vector", [0, 0]],
"radius": ["real", 1.0],
"loop": ["bool", False],
"zigzag": ["bool", False],
}
)
# Layers in lyr_std
layers["import"] = default_composite.copy()
layers["import"].update(
{
"tl": ["vector", [-1, 1]],
"br": ["vector", [1, -1]],
"c": ["integer", 1],
"gamma_adjust": ["real", 1.0],
"filename": ["string", ""], # <string>foo</string>
"time_offset": ["time", "0s"],
}
)
# transforms are not blending
layers["warp"] = {
"src_tl": ["vector", [-1, 1]],
"src_br": ["vector", [1, -1]],
"dest_tl": ["vector", [-1, 1]],
"dest_tr": ["vector", [1, 1]],
"dest_br": ["vector", [1, -1]],
"dest_bl": ["vector", [-1, -1]],
"clip": ["bool", False],
"horizon": ["real", 4.0],
}
layers["rotate"] = {
"origin": ["vector", [0.0, 0.0]],
"amount": ["angle", 0], # <angle value=.../>
}
layers["translate"] = {"origin": ["vector", [0.0, 0.0]]}
# Layers in mod_filter
layers["blur"] = default_composite.copy()
layers["blur"].update(
{
"size": ["vector", [1, 1]],
"type": ["integer", 3], # 1 is fast gaussian, 3 is regular
}
)
# ##### Layer versions #####################################
layer_versions = {
"outline": "0.2",
"rectangle": "0.2",
"linear_gradient": "0.0",
"blur": "0.2",
None: "0.1", # default
}
# ##### Blend Methods ######################################
blend_method_names = {
0: "composite",
1: "straight",
13: "onto",
21: "straight onto",
12: "behind",
16: "screen",
20: "overlay",
17: "hand light",
6: "multiply",
7: "divide",
4: "add",
5: "subtract",
18: "difference",
2: "brighten",
3: "darken",
8: "color",
9: "hue",
10: "saturation",
11: "luminance",
14: "alpha brighten", # deprecated
15: "alpha darken", # deprecated
19: "alpha over", # deprecated
}
blend_methods = dict((v, k) for (k, v) in blend_method_names.items())
# ##### Functions ##########################################
def paramType(layer, param, value=None):
if layer in layers.keys():
layer_params = layers[layer]
if param in layer_params.keys():
return layer_params[param][0]
else:
raise Exception("Invalid parameter type for layer")
else:
# Unknown layer, try to determine parameter type based on value
if value is None:
raise Exception("No information for given layer")
if type(value) == int:
return "integer"
elif type(value) == float:
return "real"
elif type(value) == bool:
return "bool"
elif type(value) == dict:
if "points" in value.keys():
return "bline"
elif 0.0 in value.keys():
return "gradient"
else:
raise Exception("Could not automatically determine parameter type")
elif type(value) == list:
if len(value) == 2:
return "vector"
elif len(value) == 3 or len(value) == 4:
return "color"
else:
# The first two could also be canvases
return "canvas"
elif type(value) == str:
return "string"
def defaultLayerVersion(layer):
if layer in layer_versions.keys():
return layer_versions[layer]
else:
return layer_versions[None]
def defaultLayerParams(layer):
if layer in layers.keys():
return layers[layer].copy()
else:
return {}
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