From 6575e304b8a8127e4fa0d0989efcacb3d773be46 Mon Sep 17 00:00:00 2001
From: Toke Stuart Jepsen <tokejepsen@gmail.com>
Date: Thu, 5 Jan 2023 18:20:03 +0000
Subject: [PATCH] Connect Geometry action

---
 .../plugins/inventory/connect_geometry.py     | 139 ++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 openpype/hosts/maya/plugins/inventory/connect_geometry.py

diff --git a/openpype/hosts/maya/plugins/inventory/connect_geometry.py b/openpype/hosts/maya/plugins/inventory/connect_geometry.py
new file mode 100644
index 0000000000..375ad29ef0
--- /dev/null
+++ b/openpype/hosts/maya/plugins/inventory/connect_geometry.py
@@ -0,0 +1,139 @@
+from maya import cmds
+
+from openpype.pipeline import InventoryAction, get_representation_context
+
+
+class ConnectGeometry(InventoryAction):
+    """Connect geometries within containers.
+
+    Source container will connect to the target containers, by searching for
+    matching geometry IDs (cbid).
+    Source containers are of family; "animation" and "pointcache".
+    The connection with be done with a live world space blendshape.
+    """
+
+    label = "Connect Geometry"
+    icon = "link"
+    color = "white"
+
+    def process(self, containers):
+        # Validate selection is more than 1.
+        message = (
+            "Only 1 container selected. 2+ containers needed for this action."
+        )
+        if len(containers) == 1:
+            self.display_warning(message)
+            return
+
+        # Categorize containers by family.
+        containers_by_family = {}
+        for container in containers:
+            family = get_representation_context(
+                container["representation"]
+            )["subset"]["data"]["family"]
+            try:
+                containers_by_family[family].append(container)
+            except KeyError:
+                containers_by_family[family] = [container]
+
+        # Validate to only 1 source container.
+        source_containers = containers_by_family.get("animation", [])
+        source_containers += containers_by_family.get("pointcache", [])
+        source_container_namespaces = [
+            x["namespace"] for x in source_containers
+        ]
+        message = (
+            "{} animation containers selected:\n\n{}\n\nOnly select 1 of type "
+            "\"animation\" or \"pointcache\".".format(
+                len(source_containers), source_container_namespaces
+            )
+        )
+        if len(source_containers) != 1:
+            self.display_warning(message)
+            return
+
+        source_container = source_containers[0]
+
+        # Collect matching geometry transforms based cbId attribute.
+        target_containers = []
+        for family, containers in containers_by_family.items():
+            if family in ["animation", "pointcache"]:
+                continue
+
+            target_containers.extend(containers)
+
+        source_data = self.get_container_data(source_container["objectName"])
+        matches = []
+        node_types = []
+        for target_container in target_containers:
+            target_data = self.get_container_data(
+                target_container["objectName"]
+            )
+            node_types.extend(target_data["node_types"])
+            for id, transform in target_data["ids"].items():
+                source_match = source_data["ids"].get(id)
+                if source_match:
+                    matches.append([source_match, transform])
+
+        # Message user about what is about to happen.
+        if not matches:
+            self.display_warning("No matching geometries found.")
+            return
+
+        message = "Linking geometries:\n\n"
+        for match in matches:
+            message += "{} > {}\n".format(match[0], match[1])
+
+        choice = self.display_warning(message, show_cancel=True)
+        if choice is False:
+            return
+
+        # Setup live worldspace blendshape connection.
+        for match in matches:
+            source = match[0]
+            target = match[1]
+            blendshape = cmds.blendShape(source, target)[0]
+            cmds.setAttr(blendshape + ".origin", 0)
+            cmds.setAttr(blendshape + "." + target.split(":")[-1], 1)
+
+        # Update Xgen if in any of the containers.
+        if "xgmPalette" in node_types:
+            cmds.xgmPreview()
+
+    def get_container_data(self, container):
+        data = {"node_types": [], "ids": {}}
+        ref_node = cmds.sets(container, query=True, nodesOnly=True)[0]
+        for node in cmds.referenceQuery(ref_node, nodes=True):
+            node_type = cmds.nodeType(node)
+            data["node_types"].append(node_type)
+            if node_type == "mesh":
+                transform = cmds.listRelatives(node, parent=True)[0]
+                id = cmds.getAttr(transform + ".cbId")
+                data["ids"][id] = transform
+
+        return data
+
+    def display_warning(self, message, show_cancel=False):
+        """Show feedback to user.
+
+        Returns:
+            bool
+        """
+
+        from Qt import QtWidgets
+
+        accept = QtWidgets.QMessageBox.Ok
+        if show_cancel:
+            buttons = accept | QtWidgets.QMessageBox.Cancel
+        else:
+            buttons = accept
+
+        state = QtWidgets.QMessageBox.warning(
+            None,
+            "",
+            message,
+            buttons=buttons,
+            defaultButton=accept
+        )
+
+        return state == accept