From eb76b7a02f56d8bca6cb78a7c272b9670f7faace Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 6 May 2014 23:43:22 +0300
Subject: [PATCH] Add an object property to control compound exporting

---
 blender/io_mspgl/__init__.py    |  7 ++++++-
 blender/io_mspgl/export_mesh.py |  9 +++++++++
 blender/io_mspgl/properties.py  | 16 ++++++++++++++++
 3 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 blender/io_mspgl/properties.py

diff --git a/blender/io_mspgl/__init__.py b/blender/io_mspgl/__init__.py
index 7426685f..9f7c48e1 100644
--- a/blender/io_mspgl/__init__.py
+++ b/blender/io_mspgl/__init__.py
@@ -7,7 +7,7 @@ bl_info = {
 
 if "bpy" in locals():
 	import imp
-	for sub in "armature", "export_armature", "export_mesh", "export_object", "mesh", "outfile", "util":
+	for sub in "armature", "export_armature", "export_mesh", "export_object", "mesh", "outfile", "properties", "util":
 		if sub in locals():
 			imp.reload(locals()[sub])
 
@@ -137,11 +137,16 @@ def menu_func_export(self, context):
 	self.layout.operator(ExportMspGLObject.bl_idname, text="Msp GL object")
 	self.layout.operator(ExportMspGLArmature.bl_idname, text="Msp GL armature")
 
+from .properties import MspGLProperties
+
 def register():
 	bpy.utils.register_module(__name__)
 
 	bpy.types.INFO_MT_file_export.append(menu_func_export)
 
+	from .properties import register_properties
+	register_properties();
+
 def unregister():
 	bpy.utils.unregister_module(__name__)
 
diff --git a/blender/io_mspgl/export_mesh.py b/blender/io_mspgl/export_mesh.py
index 18ae856a..cc8ee6ff 100644
--- a/blender/io_mspgl/export_mesh.py
+++ b/blender/io_mspgl/export_mesh.py
@@ -194,6 +194,15 @@ class MeshExporter:
 	def export(self, context, out_file):
 		if self.compound:
 			objs = context.selected_objects
+			check = objs
+			while check:
+				children = []
+				for o in check:
+					for c in o.children:
+						if c.compound:
+							children.append(c)
+				objs += children
+				check = children
 		else:
 			objs = [context.active_object]
 
diff --git a/blender/io_mspgl/properties.py b/blender/io_mspgl/properties.py
new file mode 100644
index 00000000..d2d36cb9
--- /dev/null
+++ b/blender/io_mspgl/properties.py
@@ -0,0 +1,16 @@
+import bpy
+
+class MspGLProperties(bpy.types.Panel):
+	bl_idname = "OBJECT_PT_mspgl_properties"
+	bl_label = "MspGL properties"
+	bl_space_type = "PROPERTIES"
+	bl_region_type = "WINDOW"
+	bl_context = "object"
+
+	def draw(self, context):
+		obj = context.active_object
+
+		self.layout.prop(obj, "compound");
+
+def register_properties():
+	bpy.types.Object.compound = bpy.props.BoolProperty(name="Compound with parent", description="Join this object to its parent when exporting")
-- 
2.43.0