add time diff plugin

src/ui/bigtext/preProcessLinesModel.py

@@ -0,0 +1,18 @@
+from typing import List
+
+from src.plugins.logfile.preprocesslineshook import PreProcessLinesHook
+
+
+class PreProcessLinesModel:
+    def __init__(self):
+        self._pre_process_lines_hooks: List[PreProcessLinesHook] = []
+
+    def add_hook(self, hook: PreProcessLinesHook):
+        self._pre_process_lines_hooks.append(hook)
+
+    def add_hooks(self, hooks: List[PreProcessLinesHook]):
+        for hook in hooks:
+            self.add_hook(hook)
+
+    def get_hooks(self) -> List[PreProcessLinesHook]:
+        return self._pre_process_lines_hooks.copy()