Source code for simvx.editor.panels.inspector_sections._mesh_section

"""MeshSection -- mesh primitive creation.

Registered with the section registry via @register_inspector_section at
import time.
"""

from simvx.core import Button, Control, HBoxContainer, MeshInstance3D, Vec2

from ._base import (
    InspectorSection,
    _font_size,
    _row_h,
    register_inspector_section,
)




@register_inspector_section
class MeshSection(InspectorSection):
    section_title = "Mesh"
    priority = 10



    def can_handle(self, node):
        return isinstance(node, MeshInstance3D)




    def build_rows(self, node, ctx):
        from simvx.core import Mesh
        rows: list[Control] = []

        if node.mesh is None:
            mesh_row = HBoxContainer()
            mesh_row.separation = 4
            for prim_name, factory in [
                ("Cube", lambda: Mesh.cube(size=1.0)),
                ("Sphere", lambda: Mesh.sphere(radius=1.0, rings=16, segments=16)),
                ("Cylinder", lambda: Mesh.cylinder(radius=1.0, height=1.0, segments=16)),
            ]:
                btn = Button(prim_name)
                btn.size = Vec2(70, _row_h())
                btn.font_size = _font_size()
                btn.pressed.connect(lambda f=factory, c=ctx, n=node: _set_mesh(n, f(), c))
                mesh_row.add_child(btn)
            rows.append(mesh_row)
        elif node.material is None:
            mat_btn = Button("Add Material")
            mat_btn.size = Vec2(120, _row_h())
            mat_btn.font_size = _font_size()
            mat_btn.pressed.connect(lambda c=ctx, n=node: _add_material(n, c))
            rows.append(mat_btn)

        return rows



def _set_mesh(node, mesh, ctx):
    node.mesh = mesh
    if ctx.editor_state:
        ctx.editor_state.modified = True
    ctx.rebuild()

def _add_material(node, ctx):
    from simvx.core import Material
    node.material = Material()
    if ctx.editor_state:
        ctx.editor_state.modified = True
    ctx.rebuild()