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# Example of a custom widget that defines it's own geometry.
#
# Usage: Select a light in the 3D view and drag the arrow at it's rear
# to change it's energy value.
#
import bpy
from bpy.types import (
Gizmo,
GizmoGroup,
)
# Coordinates (each one is a triangle).
custom_shape_verts = (
(3.0, 1.0, -1.0), (2.0, 2.0, -1.0), (3.0, 3.0, -1.0),
(1.0, 3.0, 1.0), (3.0, 3.0, -1.0), (1.0, 3.0, -1.0),
(3.0, 3.0, 1.0), (3.0, 1.0, -1.0), (3.0, 3.0, -1.0),
(2.0, 0.0, 1.0), (3.0, 1.0, -1.0), (3.0, 1.0, 1.0),
(2.0, 0.0, -1.0), (2.0, 2.0, 1.0), (2.0, 2.0, -1.0),
(2.0, 2.0, -1.0), (0.0, 2.0, 1.0), (0.0, 2.0, -1.0),
(1.0, 3.0, 1.0), (2.0, 2.0, 1.0), (3.0, 3.0, 1.0),
(0.0, 2.0, -1.0), (1.0, 3.0, 1.0), (1.0, 3.0, -1.0),
(2.0, 2.0, 1.0), (3.0, 1.0, 1.0), (3.0, 3.0, 1.0),
(2.0, 2.0, -1.0), (1.0, 3.0, -1.0), (3.0, 3.0, -1.0),
(-3.0, -1.0, -1.0), (-2.0, -2.0, -1.0), (-3.0, -3.0, -1.0),
(-1.0, -3.0, 1.0), (-3.0, -3.0, -1.0), (-1.0, -3.0, -1.0),
(-3.0, -3.0, 1.0), (-3.0, -1.0, -1.0), (-3.0, -3.0, -1.0),
(-2.0, 0.0, 1.0), (-3.0, -1.0, -1.0), (-3.0, -1.0, 1.0),
(-2.0, 0.0, -1.0), (-2.0, -2.0, 1.0), (-2.0, -2.0, -1.0),
(-2.0, -2.0, -1.0), (0.0, -2.0, 1.0), (0.0, -2.0, -1.0),
(-1.0, -3.0, 1.0), (-2.0, -2.0, 1.0), (-3.0, -3.0, 1.0),
(0.0, -2.0, -1.0), (-1.0, -3.0, 1.0), (-1.0, -3.0, -1.0),
(-2.0, -2.0, 1.0), (-3.0, -1.0, 1.0), (-3.0, -3.0, 1.0),
(-2.0, -2.0, -1.0), (-1.0, -3.0, -1.0), (-3.0, -3.0, -1.0),
(1.0, -1.0, 0.0), (-1.0, -1.0, 0.0), (0.0, 0.0, -5.0),
(-1.0, -1.0, 0.0), (1.0, -1.0, 0.0), (0.0, 0.0, 5.0),
(1.0, -1.0, 0.0), (1.0, 1.0, 0.0), (0.0, 0.0, 5.0),
(1.0, 1.0, 0.0), (-1.0, 1.0, 0.0), (0.0, 0.0, 5.0),
(-1.0, 1.0, 0.0), (-1.0, -1.0, 0.0), (0.0, 0.0, 5.0),
(-1.0, -1.0, 0.0), (-1.0, 1.0, 0.0), (0.0, 0.0, -5.0),
(-1.0, 1.0, 0.0), (1.0, 1.0, 0.0), (0.0, 0.0, -5.0),
(1.0, 1.0, 0.0), (1.0, -1.0, 0.0), (0.0, 0.0, -5.0),
(3.0, 1.0, -1.0), (2.0, 0.0, -1.0), (2.0, 2.0, -1.0),
(1.0, 3.0, 1.0), (3.0, 3.0, 1.0), (3.0, 3.0, -1.0),
(3.0, 3.0, 1.0), (3.0, 1.0, 1.0), (3.0, 1.0, -1.0),
(2.0, 0.0, 1.0), (2.0, 0.0, -1.0), (3.0, 1.0, -1.0),
(2.0, 0.0, -1.0), (2.0, 0.0, 1.0), (2.0, 2.0, 1.0),
(2.0, 2.0, -1.0), (2.0, 2.0, 1.0), (0.0, 2.0, 1.0),
(1.0, 3.0, 1.0), (0.0, 2.0, 1.0), (2.0, 2.0, 1.0),
(0.0, 2.0, -1.0), (0.0, 2.0, 1.0), (1.0, 3.0, 1.0),
(2.0, 2.0, 1.0), (2.0, 0.0, 1.0), (3.0, 1.0, 1.0),
(2.0, 2.0, -1.0), (0.0, 2.0, -1.0), (1.0, 3.0, -1.0),
(-3.0, -1.0, -1.0), (-2.0, 0.0, -1.0), (-2.0, -2.0, -1.0),
(-1.0, -3.0, 1.0), (-3.0, -3.0, 1.0), (-3.0, -3.0, -1.0),
(-3.0, -3.0, 1.0), (-3.0, -1.0, 1.0), (-3.0, -1.0, -1.0),
(-2.0, 0.0, 1.0), (-2.0, 0.0, -1.0), (-3.0, -1.0, -1.0),
(-2.0, 0.0, -1.0), (-2.0, 0.0, 1.0), (-2.0, -2.0, 1.0),
(-2.0, -2.0, -1.0), (-2.0, -2.0, 1.0), (0.0, -2.0, 1.0),
(-1.0, -3.0, 1.0), (0.0, -2.0, 1.0), (-2.0, -2.0, 1.0),
(0.0, -2.0, -1.0), (0.0, -2.0, 1.0), (-1.0, -3.0, 1.0),
(-2.0, -2.0, 1.0), (-2.0, 0.0, 1.0), (-3.0, -1.0, 1.0),
(-2.0, -2.0, -1.0), (0.0, -2.0, -1.0), (-1.0, -3.0, -1.0),
)
class MyCustomShapeWidget(Gizmo):
bl_idname = "VIEW3D_GT_auto_facemap"
bl_target_properties = (
{"id": "offset", "type": 'FLOAT', "array_length": 1},
)
__slots__ = (
"custom_shape",
"init_mouse_y",
"init_value",
)
def _update_offset_matrix(self):
# offset behind the light
self.matrix_offset.col[3][2] = self.target_get_value("offset") / -10.0
def draw(self, context):
self._update_offset_matrix()
self.draw_custom_shape(self.custom_shape)
def draw_select(self, context, select_id):
self._update_offset_matrix()
self.draw_custom_shape(self.custom_shape, select_id=select_id)
def setup(self):
if not hasattr(self, "custom_shape"):
self.custom_shape = self.new_custom_shape('TRIS', custom_shape_verts)
def invoke(self, context, event):
self.init_mouse_y = event.mouse_y
self.init_value = self.target_get_value("offset")
return {'RUNNING_MODAL'}
def exit(self, context, cancel):
context.area.header_text_set(None)
if cancel:
self.target_set_value("offset", self.init_value)
def modal(self, context, event, tweak):
delta = (event.mouse_y - self.init_mouse_y) / 10.0
if 'SNAP' in tweak:
delta = round(delta)
if 'PRECISE' in tweak:
delta /= 10.0
value = self.init_value - delta
self.target_set_value("offset", value)
context.area.header_text_set("My Gizmo: %.4f" % value)
return {'RUNNING_MODAL'}
class MyCustomShapeWidgetGroup(GizmoGroup):
bl_idname = "OBJECT_GGT_light_test"
bl_label = "Test Light Widget"
bl_space_type = 'VIEW_3D'
bl_region_type = 'WINDOW'
bl_options = {'3D', 'PERSISTENT'}
@classmethod
def poll(cls, context):
ob = context.object
return (ob and ob.type == 'LIGHT')
def setup(self, context):
# Assign the 'offset' target property to the light energy.
ob = context.object
gz = self.gizmos.new(MyCustomShapeWidget.bl_idname)
gz.target_set_prop("offset", ob.data, "energy")
gz.color = 1.0, 0.5, 1.0
gz.alpha = 0.5
gz.color_highlight = 1.0, 1.0, 1.0
gz.alpha_highlight = 0.5
# units are large, so shrink to something more reasonable.
gz.scale_basis = 0.1
gz.use_draw_modal = True
self.energy_gizmo = gz
def refresh(self, context):
ob = context.object
gz = self.energy_gizmo
gz.matrix_basis = ob.matrix_world.normalized()
classes = (
MyCustomShapeWidget,
MyCustomShapeWidgetGroup,
)
for cls in classes:
bpy.utils.register_class(cls)
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