V2.1.0 — Formats personnalises + reperes de coupe

- Formats personnalises dans tous les menus deroulants de format :
  - "Personnalise..." : saisie libre largeur x hauteur en mm
  - "Ajouter un format..." : sauvegarder un format custom (persistant)
  - Formats custom affiches dans le dropdown avec separateur
- Reperes de coupe (Annotations > Reperes de coupe) :
  - Longueur, distance du bord, epaisseur configurables
  - Couleur : noir, gris, CMYK
  - Reperes de centrage optionnels
  - Appliquer a : toutes, paires, impaires, page courante
  - Enlever les reperes de coupe (menu)
- Step & Repeat : ajout des marges (haut, bas, gauche, droite)
- Tous les dialogues de format migres vers format_combo

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/main_window.py

@@ -22,6 +22,7 @@ from app.dialogs.insert_blank_dialog import InsertBlankDialog
 from app.dialogs.page_numbers_dialog import PageNumbersDialog
 from app.dialogs.masking_dialog import MaskingDialog
 from app.dialogs.bleeds_dialog import BleedsDialog
+from app.dialogs.crop_marks_dialog import CropMarksDialog
 
 from app.engine.booklet import create_booklet
 from app.engine.nup import nup_pages
@@ -32,6 +33,7 @@ from app.engine.insert_blank import insert_blank_pages
 from app.engine.page_numbers import add_page_numbers
 from app.engine.masking import apply_masking
 from app.engine.bleeds import define_bleeds
+from app.engine.crop_marks import add_crop_marks, remove_crop_marks
 
 
 class MainWindow(QMainWindow):
@@ -120,6 +122,10 @@ class MainWindow(QMainWindow):
         self._add_action(annot_menu, "Numerotation de pages", None, self._do_page_numbers)
         self._add_action(annot_menu, "Masquage (ruban blanc)", None, self._do_masking)
         annot_menu.addSeparator()
+        annot_menu.addSeparator()
+        self._add_action(annot_menu, "Reperes de coupe...", None, self._do_crop_marks)
+        self._add_action(annot_menu, "Enlever les reperes de coupe", None, self._do_remove_crop_marks)
+        annot_menu.addSeparator()
         self._add_action(annot_menu, "Definir les fonds perdus", None, self._do_bleeds)
         self._add_action(annot_menu, "Enlever les fonds perdus", None, self._do_remove_bleeds)
 
@@ -488,6 +494,34 @@ class MainWindow(QMainWindow):
             self._hide_progress()
             QMessageBox.critical(self, "Erreur", str(e))
 
+    def _do_crop_marks(self):
+        if not self._require_file():
+            return
+        dlg = CropMarksDialog(self)
+        if dlg.exec():
+            self._show_progress()
+            settings = dlg.get_settings()
+            settings["current_page"] = self._viewer.current_page
+            output = self._make_temp()
+            try:
+                add_crop_marks(self._current_file, output, **settings)
+                self._show_result(output)
+            except Exception as e:
+                self._hide_progress()
+                QMessageBox.critical(self, "Erreur", str(e))
+
+    def _do_remove_crop_marks(self):
+        if not self._require_file():
+            return
+        self._show_progress()
+        try:
+            output = self._make_temp()
+            remove_crop_marks(self._current_file, output)
+            self._show_result(output)
+        except Exception as e:
+            self._hide_progress()
+            QMessageBox.critical(self, "Erreur", str(e))
+
     def _do_merge(self):
         paths, _ = QFileDialog.getOpenFileNames(self, "Selectionner les PDF a fusionner", "", "PDF (*.pdf)")
         if not paths or len(paths) < 2: