feat(presets): Implement NamedViewPresets for per-file view settings

src/app_controller.py

@@ -226,6 +226,7 @@ class AppController:
   self._pending_actions: Dict[str, ConfirmDialog] = {}
   self._pending_ask_dialog: bool = False
   self.mcp_config: models.MCPConfiguration = models.MCPConfiguration()
+  self.view_presets: list[models.NamedViewPreset] = []
   self.rag_config: Optional[models.RAGConfig] = None
   self.rag_engine: Optional[rag_engine.RAGEngine] = None
   self.rag_status: str = 'idle'
@@ -2449,6 +2450,12 @@ class AppController:
   self.tool_presets = self.tool_preset_manager.load_all_presets()
   self.bias_profiles = self.tool_preset_manager.load_all_bias_profiles()
 
+  raw_presets = proj.get("view_presets", [])
+  if isinstance(raw_presets, dict):
+   self.view_presets = [models.NamedViewPreset.from_dict({"name": name, **data}) for name, data in raw_presets.items()]
+  else:
+   self.view_presets = [models.NamedViewPreset.from_dict(p) for p in raw_presets if isinstance(p, dict)]
+
   if self.rag_config and self.rag_config.enabled:
    self._rebuild_rag_index()
 
@@ -2561,6 +2568,41 @@ class AppController:
   self.persona_manager.delete_persona(name, scope)
   self.personas = self.persona_manager.load_all()
 
+ def _cb_save_view_preset(self, name: str, f_item: models.FileItem) -> None:
+  """
+    [C: src/gui_2.py:App._render_files_panel]
+  """
+  preset = models.NamedViewPreset(
+   name=name,
+   view_mode=f_item.view_mode,
+   ast_mask=copy.deepcopy(f_item.ast_mask) if hasattr(f_item, "ast_mask") else {},
+   custom_slices=copy.deepcopy(f_item.custom_slices) if hasattr(f_item, "custom_slices") else []
+  )
+  for i, vp in enumerate(self.view_presets):
+   if vp.name == name:
+    self.view_presets[i] = preset
+    break
+  else:
+   self.view_presets.append(preset)
+  self._flush_to_project()
+
+ def _cb_apply_view_preset(self, name: str, f_item: models.FileItem) -> None:
+  """
+    [C: src/gui_2.py:App._render_files_panel]
+  """
+  preset = next((vp for vp in self.view_presets if vp.name == name), None)
+  if preset:
+   f_item.view_mode = preset.view_mode
+   f_item.ast_mask = copy.deepcopy(preset.ast_mask)
+   f_item.custom_slices = copy.deepcopy(preset.custom_slices)
+
+ def _cb_delete_view_preset(self, name: str) -> None:
+  """
+    [C: src/gui_2.py:App._render_files_panel]
+  """
+  self.view_presets = [vp for vp in self.view_presets if vp.name != name]
+  self._flush_to_project()
+
 
  def _cb_load_track(self, track_id: str) -> None:
   """
@@ -3011,6 +3053,7 @@ class AppController:
   disc_sec["roles"] = self.disc_roles
   disc_sec["active"] = self.active_discussion
   disc_sec["auto_add"] = self.ui_auto_add_history
+  proj["view_presets"] = [vp.to_dict() for vp in self.view_presets]
   # Save MMA State
   mma_sec = proj.setdefault("mma", {})
   mma_sec["epic"] = self.ui_epic_input