model_gui.py

    bl_space_type = "VIEW_3D"
    bl_context_mode = "OBJECT"

    # The prefix of the idname should be your add-on name.
    bl_idname = "pov.addblobcapsule"
    bl_label = "Add POV blob capsule"

    bl_description = "add a POV capsule shaped blob primitive"
    bl_icon = os.path.join(icon_path, "pov.add.blobcapsule")
    bl_widget = None
    bl_keymap = (
        ("pov.addblobcapsule", {"type": "LEFTMOUSE", "value": "PRESS"}, {"properties": None}),
    )


class VIEW_WT_POV_blobplane_add(WorkSpaceTool):
    bl_space_type = "VIEW_3D"
    bl_context_mode = "OBJECT"

    # The prefix of the idname should be your add-on name.
    bl_idname = "pov.addblobplane"
    bl_label = "Add POV blob plane"

    bl_description = "add a POV plane shaped blob primitive"
    bl_icon = os.path.join(icon_path, "pov.add.blobplane")
    bl_widget = None
    bl_keymap = (
        ("pov.addblobplane", {"type": "LEFTMOUSE", "value": "PRESS"}, {"properties": None}),
    )


class VIEW_WT_POV_blobellipsoid_add(WorkSpaceTool):
    bl_space_type = "VIEW_3D"
    bl_context_mode = "OBJECT"

    # The prefix of the idname should be your add-on name.
    bl_idname = "pov.addblobellipsoid"
    bl_label = "Add POV blob ellipsoid"

    bl_description = "add a POV ellipsoid shaped blob primitive"
    bl_icon = os.path.join(icon_path, "pov.add.blobellipsoid")
    bl_widget = None
    bl_keymap = (
        ("pov.addblobellipsoid", {"type": "LEFTMOUSE", "value": "PRESS"}, {"properties": None}),
    )


class VIEW_WT_POV_blobcube_add(WorkSpaceTool):
    bl_space_type = "VIEW_3D"
    bl_context_mode = "OBJECT"

    # The prefix of the idname should be your add-on name.
    bl_idname = "pov.addsblobcube"
    bl_label = "Add POV blob cube"

    bl_description = "add a POV cube shaped blob primitive"
    bl_icon = os.path.join(icon_path, "pov.add.blobcube")
    bl_widget = None
    bl_keymap = (
        ("pov.addblobcube", {"type": "LEFTMOUSE", "value": "PRESS"}, {"properties": None}),
    )


classes = (
    # ObjectButtonsPanel,
    # PovDataButtonsPanel,
    DATA_PT_POV_normals,
    DATA_PT_POV_texture_space,
    DATA_PT_POV_vertex_groups,
    DATA_PT_POV_shape_keys,
    DATA_PT_POV_uv_texture,
    DATA_PT_POV_vertex_colors,
    DATA_PT_POV_customdata,
    MODIFIERS_PT_POV_modifiers,
    OBJECT_PT_POV_obj_parameters,
    OBJECT_PT_POV_obj_sphere,
    OBJECT_PT_POV_obj_cylinder,
    OBJECT_PT_POV_obj_cone,
    OBJECT_PT_POV_obj_superellipsoid,
    OBJECT_PT_POV_obj_torus,
    OBJECT_PT_POV_obj_supertorus,
    OBJECT_PT_POV_obj_isosurface,
    OBJECT_PT_POV_obj_parametric,
    OBJECT_PT_povray_replacement_text,
    VIEW_MT_POV_primitives_add,
    VIEW_MT_POV_Basic_Shapes,
)
tool_classes = (
    VIEW_WT_POV_plane_add,
    VIEW_WT_POV_box_add,
    VIEW_WT_POV_sphere_add,
    VIEW_WT_POV_cylinder_add,
    VIEW_WT_POV_cone_add,
    VIEW_WT_POV_torus_add,
    VIEW_WT_POV_prism_add,
    VIEW_WT_POV_lathe_add,
    VIEW_WT_POV_spheresweep_add,
    VIEW_WT_POV_heightfield_add,
    VIEW_WT_POV_superellipsoid_add,
    VIEW_WT_POV_rainbow_add,
    VIEW_WT_POV_loft_add,
    VIEW_WT_POV_polytocircle_add,
    VIEW_WT_POV_parametric_add,
    VIEW_WT_POV_isosurface_add,
    VIEW_WT_POV_isosurfacebox_add,
    VIEW_WT_POV_isosurfacesphere_add,
    VIEW_WT_POV_isosurfacesupertorus_add,
    VIEW_WT_POV_blobsphere_add,
    VIEW_WT_POV_blobcapsule_add,
    VIEW_WT_POV_blobplane_add,
    VIEW_WT_POV_blobellipsoid_add,
    VIEW_WT_POV_blobcube_add,
)


def register():
    for cls in classes:
        register_class(cls)

    # Register tools
    last_tool = {"builtin.measure"}
    for index, wtl in enumerate(tool_classes):
        # Only separate first and 12th tools and hide subtools only in 8th (isosurfaces)
        register_tool(
            wtl, after=last_tool, separator=index in {0, 7, 11, 12, 14, 19}, group=index == 15
        )
        last_tool = {wtl.bl_idname}

    bpy.types.VIEW3D_MT_add.prepend(menu_func_add)
    # Below was used for parametric objects but made the other addon unreachable on
    # unregister for other tools to use. Created a user action call instead
    # addon_utils.enable("add_mesh_extra_objects", default_set=False, persistent=True)


def unregister():
    # addon_utils.disable("add_mesh_extra_objects", default_set=False)
    bpy.types.VIEW3D_MT_add.remove(menu_func_add)

    for wtl in reversed(tool_classes):
        unregister_tool(wtl)

    for cls in reversed(classes):
        unregister_class(cls)