Implement support for deleting BCF header files

src/bcf/bcf/bcfxml.py

@@ -272,7 +272,7 @@ class BcfXml:
             f.write(self.document.toprettyxml(encoding="utf-8"))
 
     def write_header(self, header, root):
-        if not header:
+        if not header or not header.files:
             return
         header_el = self._create_element(root, "Header")
         for f in header.files:
@@ -504,6 +504,15 @@ class BcfXml:
         del topic.viewpoints[guid]
         self.edit_topic(topic)
 
+    def delete_file(self, topic, index):
+        if not topic.header:
+            return
+        f = topic.header.files.pop(index)
+        filepath = os.path.join(self.filepath, topic.guid, f.reference)
+        if not f.is_external and os.path.exists(filepath):
+            os.remove(filepath)
+        self.edit_topic(topic)
+
     def get_comments(self, guid):
         comments = {}
         data = self._read_xml(os.path.join(guid, "markup.bcf"), "markup.xsd")

src/ifcblenderexport/blenderbim/bim/__init__.py

@@ -42,6 +42,7 @@ if bpy is not None:
         operator.ActivateBcfViewpoint,
         operator.AddBcfViewpoint,
         operator.RemoveBcfViewpoint,
+        operator.RemoveBcfFile,
         operator.OpenUri,
         operator.OpenBcfReferenceLink,
         operator.SelectFeaturesDir,

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -803,6 +803,21 @@ class RemoveBcfViewpoint(bpy.types.Operator):
         return {"FINISHED"}
 
 
+class RemoveBcfFile(bpy.types.Operator):
+    bl_idname = "bim.remove_bcf_file"
+    bl_label = "Remove BCF File"
+    index: bpy.props.IntProperty()
+
+    def execute(self, context):
+        bcfxml = bcfstore.BcfStore.get_bcfxml()
+        props = bpy.context.scene.BCFProperties
+        blender_topic = props.topics[props.active_topic_index]
+        topic = bcfxml.topics[blender_topic.name]
+        bcfxml.delete_file(topic, self.index)
+        props.active_topic_index = props.active_topic_index # Refreshes the BCF Topic
+        return {"FINISHED"}
+
+
 class RemoveBcfComment(bpy.types.Operator):
     bl_idname = "bim.remove_bcf_comment"
     bl_label = "Remove BCF Comment"

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -1747,7 +1747,7 @@ class BIM_PT_bcf_metadata(Panel):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcf_topic = bcfxml.topics[topic.name]
 
-        if bcf_topic.header:
+        if bcf_topic.header and bcf_topic.header.files:
             layout.label(text="Header Files:")
             for index, f in enumerate(bcf_topic.header.files):
                 box = self.layout.box()
@@ -1758,6 +1758,7 @@ class BIM_PT_bcf_metadata(Panel):
                 else:
                     op = row.operator("bim.open_uri", icon="FILE_FOLDER", text="")
                     op.uri = os.path.join(bcfxml.filepath, topic.name, f.reference)
+                row.operator("bim.remove_bcf_file", icon="X", text="").index = index
                 box.label(text=f.date)
                 # box.label(text=f.ifc_project)
                 # box.label(text=f.ifc_spatial_structure_element)