fix: QOL support for PySide6, basic standalone mode

This commits adds:
- Qt.py as an abstraction for  PySide2/6, in order to support Maya 2025.
- Replaced QRegExp with python's built-in re module.
- Standalone mode by executing ReferenceImporterMain.py with python.
- Relative imports.

.gitignore

@@ -9,6 +9,7 @@ __pycache__/
 # Distribution / packaging
 .Python
 build/
+bin/
 develop-eggs/
 dist/
 downloads/
@@ -148,4 +149,4 @@ cython_debug/
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
+#.idea/

README.md

@@ -9,8 +9,8 @@ Script that automates the importing of video reference into Maya, automatically
 ## 2. Copy the contents of the zip to you Maya scripts folder
 >found under 'Documents/maya/***InsertMayaVerion***/scripts'
 ## 2. Run the following command in Maya
-    from  ReferenceImporterMain import ReferenceImporterDialog
-    ReferenceImporterDialog.run()
+    import reference_importer
+    reference_importer.run()
 make sure to run it using Python
 
 # Usage
@@ -24,4 +24,4 @@ make sure to run it using Python
 ### 3. Set output sequence name and format
 ### 4. Set output directory for the sequence
 ### 5. (Optional) auto creation of image plane in Maya for the sequence
-### 6. Import the video!!
+### 6. Import the video!!

ReferenceImporterMain.py

@@ -2,48 +2,72 @@
 # Reference Importer v1.1, made by Jaime Florian
 # Video Demonstration: https://www.youtube.com/watch?v=ObX9NU2BmZo
 
-import os
 import sys
-libs =  os.path.abspath(os.path.dirname(__file__))
-libs = os.path.join(libs,'lib')
-sys.path.append(libs)
-from PySide2 import QtCore,QtGui,QtWidgets
-import maya.cmds as cmds
-import maya.OpenMaya as om
-import maya.OpenMayaUI as omui
-from shiboken2 import wrapInstance
-from reference_importer import ImageSequencer, Ui
+from pathlib import Path
+
+VENDOR_PATH =  Path(__file__).parent.resolve() / "vendor"
+sys.path.insert(0, str(VENDOR_PATH))
+
+import os
+import re
+from Qt import QtCore,QtWidgets
+from Qt.QtCompat import wrapInstance
+
+try:
+    import maya.cmds as cmds
+    import maya.OpenMaya as om
+    import maya.OpenMayaUI as omui
+    IN_MAYA = True
+except ImportError:
+    IN_MAYA = False
+
+from .reference_importer import ImageSequencer, Ui
 
 
 
 def maya_main_window():
     """
     Return the Maya main window widget as a Python object
     """
+    if not IN_MAYA:
+        return None
+
     main_window_ptr = omui.MQtUtil.mainWindow()
     return wrapInstance(int(main_window_ptr), QtWidgets.QWidget)
 class ReferenceImporterDialog(QtWidgets.QDialog):
 
     dlg_instance = None
+    qapp_instance = None
 
     @classmethod
     def run(cls):
-        if not cls.dlg_instance:
-            cls.dlg_instance = ReferenceImporterDialog()
+        if IN_MAYA:
+            if not cls.dlg_instance:
+                cls.dlg_instance = ReferenceImporterDialog()
 
-        if cls.dlg_instance.isHidden():
-            cls.dlg_instance.show()
-        else:
-            cls.dlg_instance.raise_()
-            cls.dlg_instance.activateWindow()
+            if cls.dlg_instance.isHidden():
+                cls.dlg_instance.show()
+            else:
+                cls.dlg_instance.raise_()
+                cls.dlg_instance.activateWindow()
+            return
+
+        if not cls.qapp_instance:
+            cls.qapp_instance = QtWidgets.QApplication(sys.argv)
+
+        dialog = ReferenceImporterDialog()
+        dialog.show()
+        cls.qapp_instance.exec_()
 
-    def __init__(self,parent=maya_main_window()):
+    def __init__(self, parent=maya_main_window()):
         super(ReferenceImporterDialog,self).__init__(parent)
         self.setWindowFlags(self.windowFlags() ^ QtCore.Qt.WindowContextHelpButtonHint)
         self.imageSequencer = ImageSequencer()
         self.ui = Ui(self)
         self.CreateConnections()
         self.ui.pushButton_create_image_sequence.setDisabled(True)
+        if not IN_MAYA:
+            self.ui.checkBox_imagePlane.setDisabled(True)
 
     def CreateConnections(self):
         self.ui.pushButton_fileExplorer_input.clicked.connect(self.SetInput)
@@ -107,14 +131,13 @@ def CheckText(self):
         except Exception as e: 
             raise e
 
-    def ValidateTimecode(self, text, ):
-        timecode_rx = QtCore.QRegExp('([0-9]{2}[:]){1,2}[0-9]{2}[.]?[0-9]{0,2}')
-        timecode_validator = QtGui.QRegExpValidator(timecode_rx, self)
-        state = timecode_validator.validate(text,0)
-        if state[0] == QtGui.QRegExpValidator.Acceptable :
-            return True
 
-        else : 
+    def ValidateTimecode(self, text):
+        timecode_rx = r'([0-9]{2}[:]){1,2}[0-9]{2}[.]?[0-9]{0,2}'
+        state = re.fullmatch(timecode_rx, text)
+        if state:
+            return True
+        else:
             return False
 
     def CreateImageSequence(self):
@@ -136,12 +159,12 @@ def CreateImageSequence(self):
                                                trim_start,trim_end,
                                                output_file)
 
-            if self.ui.checkBox_imagePlane.isChecked():
+            if self.ui.checkBox_imagePlane.isChecked() and IN_MAYA:
                 output_file = output_file.replace('%03d', '001')
                 image_plane = cmds.imagePlane(fn = output_file)
                 cmds.setAttr("%s.useFrameExtension"%image_plane[0],True)
         except Exception as e: 
             raise e
 
-if 'name' == "__main__":
-    pass
+if __name__ == "__main__":
+    ReferenceImporterDialog.run()

__init__.py

@@ -1,8 +1,8 @@
-from ReferenceImporterMain import ReferenceImporterDialog
+from .ReferenceImporterMain import ReferenceImporterDialog
 
 def run():
     ReferenceImporterDialog.run()
 
 
 if __name__ == "__main__":
-    run()
+    run()

reference_importer/__init__.py

@@ -1,2 +1,2 @@
-from imageSequence import ImageSequencer
-from ui import Ui
+from .imageSequence import ImageSequencer
+from .ui import Ui

reference_importer/imageSequence.py

@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
-import sys
-import os
+from pathlib import Path
 import subprocess
 
 
@@ -18,32 +17,25 @@ def __init__(self, video_file="",
         self.padding = padding
         self.trim_start = 0
         self.trim_end = 0
-        self.encoding = 'cp1252'
-        self.ffmpeg_path = os.path.abspath(os.path.dirname(__file__)
-                                           ).decode(self.encoding)
-        self.ffmpeg_path = os.path.join(self.ffmpeg_path,
-                                        '..',
-                                        'lib',
-                                        'ffmpeg', 
-                                        'ffmpeg')
+        self.ffmpeg_path = Path(__file__).parent.parent.resolve() / "bin" / "ffmpeg"
 
     def getDuration(self, video_file):
-        command = (u'"%s" -i "%s" 2>&1 | findstr "Duration"' %(self.ffmpeg_path,video_file)).encode(self.encoding)
+        command = (u'"%s" -i "%s" 2>&1 | findstr "Duration"' %(self.ffmpeg_path,video_file))
         try:
-           process = subprocess.check_output(command, shell=True).encode(self.encoding)
+           process = subprocess.check_output(command, shell=True)
            process = str(process).strip()
            process = process.split(" ")
-           process = process[1][0:11]
+           process = process[3][0:11]
         except Exception as e: 
             raise e
         return process
     def createSequence(self,input_file, frameRate,start_trim,end_trim, output_file):
-        command = ('"%s" -i "%s" -r %s -vf scale=1280:-1 -q:v 3 -ss %s -to %s "%s"' % (self.ffmpeg_path,input_file,frameRate,start_trim,end_trim,output_file)).encode(self.encoding)
+        command = ('"%s" -i "%s" -r %s -vf scale=1280:-1 -q:v 3 -ss %s -to %s "%s"' % (self.ffmpeg_path,input_file,frameRate,start_trim,end_trim,output_file))
         try:
-            subprocess.call(command)
+            subprocess.run(command, shell=True)
         except Exception as e: 
             raise e
 
 
 if __name__ == "__main__":
-    pass
+    pass

reference_importer/ui/__init__.py

@@ -1 +1 @@
-from main_dialog_ui import Ui
+from .main_dialog_ui import Ui

reference_importer/ui/main_dialog_ui.py

@@ -8,9 +8,12 @@
 ## WARNING! All changes made in this file will be lost when recompiling UI file!
 ################################################################################
 
-from PySide2.QtCore import *
-from PySide2.QtGui import *
-from PySide2.QtWidgets import *
+# Use Qt.py to support multiple Qt versions.
+# Should already be in sys.path when running through ReferenceImporterMain.py.
+
+from Qt.QtCore import *
+from Qt.QtGui import *
+from Qt.QtWidgets import *
 
 
 class Ui(object):
@@ -145,7 +148,7 @@ def __init__(self, Dialog):
     # setupUi
 
     def setTexts(self, Dialog):
-        Dialog.setWindowTitle(u"Reference Importer v1.1")
+        Dialog.setWindowTitle(u"Reference Importer v1.1.2")
         self.groupBox_input.setTitle(u"Input")
         self.label_video_file.setText(u"Video File")
         self.pushButton_fileExplorer_input.setText(u"Open...")