Merge pull request #276 from MozillaReality/add-mirror-component

Add support for the mirror component.

addons/io_hubs_addon/components/definitions/mirror.py

@@ -0,0 +1,85 @@
+from bpy.props import FloatVectorProperty
+from ..hubs_component import HubsComponent
+from ..gizmos import update_gizmos
+from ..types import Category, PanelType, NodeType
+from mathutils import Matrix, Quaternion
+from math import radians
+
+
+class Mirror(HubsComponent):
+    _definition = {
+        'name': 'mirror',
+        'display_name': 'Mirror',
+        'category': Category.SCENE,
+        'node_type': NodeType.NODE,
+        'panel_type': [PanelType.OBJECT, PanelType.BONE],
+        'icon': 'MOD_MIRROR',
+        'version': (1, 0, 0)
+    }
+
+    color: FloatVectorProperty(name="Color",
+                               description="Color",
+                               subtype='COLOR_GAMMA',
+                               default=(0.498039, 0.498039, 0.498039),
+                               size=3,
+                               min=0,
+                               max=1,
+                               update=lambda self, context: update_gizmos())
+
+    def draw(self, context, layout, panel_type):
+        super().draw(context, layout, panel_type)
+
+        cmp = getattr(context.object, self.get_id())
+        if cmp.color[:] == (0.0, 0.0, 0.0):
+            layout.label(
+                text="You won't see much if the mirror is black", icon='ERROR')
+
+    @classmethod
+    def create_gizmo(cls, ob, gizmo_group):
+        gizmo = gizmo_group.gizmos.new('GIZMO_GT_primitive_3d')
+        gizmo.draw_style = ('PLANE')
+        gizmo.use_draw_scale = False
+        gizmo.use_draw_offset_scale = True
+        gizmo.line_width = 3
+        gizmo.color = getattr(ob, cls.get_id()).color[:3]
+        gizmo.alpha = 0.5
+        gizmo.hide_select = True
+        gizmo.scale_basis = 0.5
+        gizmo.use_draw_modal = True
+        gizmo.color_highlight = (0.8, 0.8, 0.8)
+        gizmo.alpha_highlight = 1.0
+
+        return gizmo
+
+    @classmethod
+    def update_gizmo(cls, ob, bone, target, gizmo):
+        if bone:
+            loc, rot, scale = bone.matrix.to_4x4().decompose()
+            # Account for bones using Y up
+            rot_offset = Matrix.Rotation(radians(-90), 4, 'X').to_4x4()
+            rot = rot.normalized().to_matrix().to_4x4() @ rot_offset
+            # Account for the armature object's position
+            loc = ob.matrix_world @ Matrix.Translation(loc)
+            # Apply the custom rotation
+            rot_offset = Matrix.Rotation(radians(90), 4, 'X').to_4x4()
+            rot = rot @ rot_offset
+            # Shrink the gizmo to a 1x1m square (Blender defaults to 2x2m)
+            scale = scale / 2
+            # Convert the scale to a matrix
+            scale = Matrix.Diagonal(scale).to_4x4()
+            # Assemble the new matrix
+            mat_out = loc @ rot @ scale
+
+        else:
+            loc, rot, scale = ob.matrix_world.decompose()
+            # Apply the custom rotation
+            offset = Quaternion((1.0, 0.0, 0.0), radians(90.0))
+            new_rot = rot @ offset
+            # Shrink the gizmo to a 1x1m square (Blender defaults to 2x2m)
+            scale = scale / 2
+            # Assemble the new matrix
+            mat_out = Matrix.Translation(
+                loc) @ new_rot.normalized().to_matrix().to_4x4() @ Matrix.Diagonal(scale).to_4x4()
+
+        gizmo.matrix_basis = mat_out
+        gizmo.hide = not ob.visible_get()