2025-07-01

extensions/blender_org/bool_tool/functions/poll.py

@@ -0,0 +1,76 @@
+import bpy
+from .list import list_canvas_cutters
+
+
+#### ------------------------------ FUNCTIONS ------------------------------ ####
+
+def basic_poll(context, check_linked=False):
+    if context.mode == 'OBJECT':
+        if context.active_object is not None:
+            if context.active_object.type == 'MESH':
+                if check_linked and is_linked(context) == True:
+                    return False
+
+                return True
+
+
+def is_linked(context, obj=None):
+    if not obj:
+        obj = context.active_object
+
+    if obj not in context.editable_objects:
+        if obj.library:
+            return True
+        else:
+            return False
+    else:
+        if obj.override_library:
+            return True
+        else:
+            return False
+
+
+def is_canvas(obj):
+    if obj.booleans.canvas == False:
+        return False
+    else:
+        cutters, __ = list_canvas_cutters([obj])
+        if len(cutters) != 0:
+            return True
+        else:
+            return False
+
+
+def is_instanced_data(obj):
+    """Checks if obj.data has more than one users, i.e. is instanced"""
+    """Function only considers object types as users, and excludes pointers"""
+
+    data = bpy.data.meshes.get(obj.data.name)
+    users = 0
+
+    for key, values in bpy.data.user_map(subset=[data]).items():
+        for value in values:
+            if value.id_type == 'OBJECT':
+                users += 1
+
+    if users > 1:
+        return True
+    else:
+        return False
+
+
+def active_modifier_poll(context):
+    """Checks whether the active modifier for active object is a boolean"""
+
+    if context.object:
+        if len(context.object.modifiers) == 0:
+            return False
+
+        modifier = context.object.modifiers.active
+        if modifier and modifier.type == "BOOLEAN":
+            if modifier.object == None:
+                return False
+            else:
+                return True
+    else:
+        return False