wip first usable version

OP_add_layer.py

@@ -0,0 +1,87 @@
+import bpy
+from .import gen_vlayer
+
+class GPEXP_OT_add_layer_to_render(bpy.types.Operator):
+    bl_idname = "gp.add_layer_to_render"
+    bl_label = "Add Gp Layer as render nodes"
+    bl_description = "Create a view_layer for GP > add node > connect to output"
+    bl_options = {"REGISTER"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.object and context.object.type == 'GPENCIL'
+
+    # mode : bpy.props.StringProperty(options={'SKIP_SAVE'})
+
+    def execute(self, context):
+        ob = context.object
+        layer = ob.data.layers.active
+        if not layer:
+            self.report({'ERROR'}, 'No active layer')
+            return {"CANCELLED"}
+        
+        ct = 0
+        # send scene ?
+        for l in ob.data.layers:
+            if not l.select:
+                continue
+            gen_vlayer.get_set_viewlayer_from_gp(ob, l)
+            ct += 1
+        if ct:
+            self.report({'INFO'}, f'{ct} layer(s) added to scene "Render"')
+            
+        return {"FINISHED"}
+
+
+def export_gp_objects(oblist, exclude_list=['MA', 'IN']):
+    # Skip layer containing element in excluyde list
+    if not isinstance(oblist, list):
+        oblist = [oblist]
+
+    for ob in oblist:
+        for l in ob.data.layers:
+            if any(x + '_' in l.info for x in exclude_list):
+                continue
+            if l.hide:
+                continue
+            vl, cp = gen_vlayer.get_set_viewlayer_from_gp(ob, l) # scene=fn.get_render_scene())
+
+
+## send operator with mode ALL or SELECTED to batch build
+class GPEXP_OT_add_objects_to_render(bpy.types.Operator):
+    bl_idname = "gp.add_object_to_render"
+    bl_label = "Add all Gp Layer of active object as render nodes"
+    bl_description = "Create a view_layer for GP. Add node > connect to output"
+    bl_options = {"REGISTER"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.object and context.object.type == 'GPENCIL'
+
+    mode : bpy.props.StringProperty(default='ALL', options={'SKIP_SAVE'})
+
+    def execute(self, context):
+        if self.mode == 'SELECTED':
+            export_gp_objects([o for o in context.selected_objects if o.type == 'GPENCIL'])
+
+        elif self.mode == 'ALL':
+            scn = bpy.data.scenes.get('Scene')
+            if not scn:
+                self.report({'ERROR'}, 'Could not found default scene')
+                return {"CANCELLED"}
+            export_gp_objects([o for o in scn.objects if o.type == 'GPENCIL'])
+
+        return {"FINISHED"}
+
+classes=(
+GPEXP_OT_add_layer_to_render,
+GPEXP_OT_add_objects_to_render,
+)
+
+def register(): 
+    for cls in classes:
+        bpy.utils.register_class(cls)
+
+def unregister():
+    for cls in reversed(classes):
+        bpy.utils.unregister_class(cls)