89 lines
1.9 KiB
Python
89 lines
1.9 KiB
Python
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import typing as typ
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import bpy
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import sympy as sp
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import pydantic as pyd
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from .. import base
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from ... import contracts
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####################
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# - Blender Socket
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####################
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class RealNumberBLSocket(base.BLSocket):
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socket_type = contracts.SocketType.RealNumber
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socket_color = (0.6, 0.6, 0.6, 1.0)
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bl_label = "Real Number"
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compatible_types = {
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float: {},
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sp.Expr: {
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lambda v: v.is_real,
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lambda v: len(v.free_symbols) == 0,
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},
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}
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####################
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# - Properties
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####################
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raw_value: bpy.props.FloatProperty(
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name="Real Number",
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description="Represents a real number",
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default=0.0,
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precision=6,
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)
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####################
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# - Socket UI
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####################
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def draw_label_row(self, label_col_row: bpy.types.UILayout, text: str) -> None:
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"""Draw the value of the real number.
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"""
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label_col_row.prop(self, "raw_value", text=text)
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####################
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# - Computation of Default Value
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####################
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@property
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def default_value(self) -> float:
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"""Return the real number.
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Returns:
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The real number as a float.
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"""
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return self.raw_value
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@default_value.setter
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def default_value(self, value: typ.Any) -> None:
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"""Set the real number from some compatible type, namely
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real sympy expressions with no symbols, or floats.
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"""
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# (Guard) Value Compatibility
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if not self.is_compatible(value):
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msg = f"Tried setting socket ({self}) to incompatible value ({value}) of type {type(value)}"
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raise ValueError(msg)
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self.raw_value = float(value)
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####################
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# - Socket Configuration
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####################
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class RealNumberSocketDef(pyd.BaseModel):
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socket_type: contracts.SocketType = contracts.SocketType.RealNumber
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label: str
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default_value: float = 0.0
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def init(self, bl_socket: RealNumberBLSocket) -> None:
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bl_socket.default_value = self.default_value
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####################
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# - Blender Registration
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####################
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BL_REGISTER = [
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RealNumberBLSocket,
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]
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