feat(ui): add dedicated cancel button for batch rendering

__init__.py

@@ -15,6 +15,7 @@ from . import properties, operators, panel
 classes = (
     properties.SceneRendererSettings,
     operators.SCENERENDERER_OT_render_all,
+    operators.SCENERENDERER_OT_cancel_batch,
     panel.SCENERENDERER_PT_panel,
 )
 

operators.py

@@ -12,6 +12,16 @@ def on_render_cancel(scene, depsgraph=None):
     SCENERENDERER_OT_render_all._is_rendering = False
     SCENERENDERER_OT_render_all._cancel_requested = True
 
+class SCENERENDERER_OT_cancel_batch(bpy.types.Operator):
+    bl_idname = "scenerenderer.cancel_batch"
+    bl_label = "Cancel Batch Render"
+    bl_description = "Abort the current batch rendering process"
+
+    def execute(self, context):
+        SCENERENDERER_OT_render_all._cancel_requested = True
+        self.report({'INFO'}, "Batch render cancellation requested. Will stop after current frame or on ESC.")
+        return {'FINISHED'}
+
 
 class SCENERENDERER_OT_render_all(bpy.types.Operator):
     bl_idname = "scenerenderer.render_all"

panel.py

@@ -27,4 +27,13 @@ class SCENERENDERER_PT_panel(bpy.types.Panel):
         layout.separator()
         row = layout.row(align=True)
         row.scale_y = 2.0
-        row.operator("scenerenderer.render_all", text="Render All Scenes", icon='RENDER_STILL')
+        
+        # Check if rendering is running by accessing the timer on the operator
+        from .operators import SCENERENDERER_OT_render_all
+        is_running = getattr(SCENERENDERER_OT_render_all, "_timer", None) is not None
+        
+        if is_running:
+            row.operator("scenerenderer.cancel_batch", text="Cancel Batch Render", icon='CANCEL')
+            layout.label(text="Press ESC to force stop the active frame.", icon='INFO')
+        else:
+            row.operator("scenerenderer.render_all", text="Render All Scenes", icon='RENDER_STILL')