Add ability to select a BCF file to be loaded

src/ifcblenderexport/blenderbim/__init__.py

@@ -34,6 +34,8 @@ if bpy is not None:
         operator.AssignClass,
         operator.SelectClass,
         operator.SelectType,
+        operator.SelectBcfFile,
+        operator.GetBcfTopics,
         operator.SelectFeaturesDir,
         operator.SelectDiffJsonFile,
         operator.SelectDiffNewFile,
@@ -121,6 +123,7 @@ if bpy is not None:
         ui.BIM_PT_documentation,
         ui.BIM_PT_bim,
         ui.BIM_PT_search,
+        ui.BIM_PT_bcf,
         ui.BIM_PT_owner,
         ui.BIM_PT_context,
         ui.BIM_PT_qa,

src/ifcblenderexport/blenderbim/operator.py

@@ -385,6 +385,18 @@ class RejectElement(bpy.types.Operator):
         return {'FINISHED'}
 
 
+class GetBcfTopics(bpy.types.Operator):
+    bl_idname = 'bim.get_bcf_topics'
+    bl_label = 'Get BCF Topics'
+
+    def execute(self, context):
+        import bcfplugin
+        bcfplugin.openProject(bpy.context.scene.BIMProperties.bcf_file)
+        topics = bcfplugin.getTopics()
+        print(topics)
+        return {'FINISHED'}
+
+
 class SelectAudited(bpy.types.Operator):
     bl_idname = 'bim.select_audited'
     bl_label = 'Select Audited'
@@ -821,6 +833,20 @@ class ExecuteIfcDiff(bpy.types.Operator):
         return {'FINISHED'}
 
 
+class SelectBcfFile(bpy.types.Operator):
+    bl_idname = "bim.select_bcf_file"
+    bl_label = "Select BCF File"
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+
+    def execute(self, context):
+        bpy.context.scene.BIMProperties.bcf_file = self.filepath
+        return {'FINISHED'}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {'RUNNING_MODAL'}
+
+
 class SelectFeaturesDir(bpy.types.Operator):
     bl_idname = "bim.select_features_dir"
     bl_label = "Select Features Directory"

src/ifcblenderexport/blenderbim/prop.py

@@ -418,6 +418,7 @@ class BIMProperties(PropertyGroup):
     available_contexts: EnumProperty(items=[('Model', 'Model', ''), ('Plan', 'Plan', '')], name="Available Contexts")
     available_subcontexts: EnumProperty(items=getSubcontexts, name="Available Subcontexts")
     available_target_views: EnumProperty(items=getTargetViews, name="Available Target Views")
+    bcf_file: StringProperty(default='', name="BCF File")
 
 
 class MapConversion(PropertyGroup):

src/ifcblenderexport/blenderbim/ui.py

@@ -522,6 +522,29 @@ class BIM_PT_search(Panel):
         row.operator('bim.colour_by_pset', text='', icon='BRUSH_DATA')
 
 
+class BIM_PT_bcf(Panel):
+    bl_label = "BIM Collaboration Format"
+    bl_idname = "BIM_PT_bcf"
+    bl_options = {'DEFAULT_CLOSED'}
+    bl_space_type = 'PROPERTIES'
+    bl_region_type = 'WINDOW'
+    bl_context = "scene"
+
+    def draw(self, context):
+        layout = self.layout
+        layout.use_property_split = True
+
+        scene = context.scene
+        props = bpy.context.scene.BIMProperties
+
+        row = layout.row(align=True)
+        row.prop(props, "bcf_file")
+        row.operator("bim.select_bcf_file", icon="FILE_FOLDER", text="")
+
+        row = layout.row()
+        row.operator("bim.get_bcf_topics")
+
+
 class BIM_PT_qa(Panel):
     bl_label = "BIMTester Quality Auditing"
     bl_idname = "BIM_PT_qa"