2025-07-01

2026-03-17 14:30:01 -06:00
parent f9a22056dd
commit 62b5978595
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+"""
+Copyright (C) 2023 Adobe.
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+# file: thread_ops.py
+# brief: Threading operations
+# author Adobe - 3D & Immersive
+# copyright 2023 Adobe Inc. All rights reserved.
+
+
+import bpy
+import queue
+import threading
+
+
+QUEUE_MAIN_THREAD = queue.Queue()
+QUEUE_CURSOR = queue.Queue()
+QUEUE_CURSOR_ACTIVE = False
+
+
+class SUBSTANCE_Threads():
+
+    @staticmethod
+    def alt_thread_run(function, args):
+        _new_thead = threading.Thread(target=function, args=args)
+        _new_thead.start()
+        return _new_thead
+
+    @staticmethod
+    def timer_thread_run(delay_time, function, args):
+        _new_thead = threading.Timer(delay_time, function, args=args)
+        _new_thead.start()
+        return _new_thead
+
+    @staticmethod
+    def main_thread_run(function):
+        QUEUE_MAIN_THREAD.put(function)
+
+    @staticmethod
+    def exec_queued_function():
+        while not QUEUE_MAIN_THREAD.empty():
+            function = QUEUE_MAIN_THREAD.get()
+            function()
+        return 0.1
+
+    @staticmethod
+    def cursor_push(cursor_name):
+        if threading.current_thread() is threading.main_thread():
+            global QUEUE_CURSOR_ACTIVE
+            if QUEUE_CURSOR_ACTIVE:
+                QUEUE_CURSOR.put(cursor_name)
+            QUEUE_CURSOR_ACTIVE = True
+            bpy.context.window.cursor_modal_set(cursor_name)
+        else:
+            SUBSTANCE_Threads.main_thread_run(lambda: SUBSTANCE_Threads.cursor_push(cursor_name))
+
+    @staticmethod
+    def cursor_pop():
+        if threading.current_thread() is threading.main_thread():
+            try:
+                _cursorName = QUEUE_CURSOR.get(False)
+                bpy.context.window.cursor_modal_set(_cursorName)
+            except Exception:
+                global QUEUE_CURSOR_ACTIVE
+                QUEUE_CURSOR_ACTIVE = False
+                if bpy.context and bpy.context.window:
+                    bpy.context.window.cursor_modal_restore()
+        else:
+            SUBSTANCE_Threads.main_thread_run(lambda: SUBSTANCE_Threads.cursor_pop())