Initial commit — Copydev Imposing Tool

Outil d'imposition PDF desktop (PyQt6) remplacant Quite Imposing Plus.
9 fonctions : livret, n-up, step & repeat, imposition manuelle,
jointure pages, pages blanches, numerotation, masquage, fonds perdus.

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

app/dialogs/join_pages_dialog.py

@@ -0,0 +1,38 @@
+"""Dialogue Joindre deux pages."""
+
+from PyQt6.QtWidgets import (QDialog, QVBoxLayout, QLabel, QGroupBox,
+                              QRadioButton, QDialogButtonBox)
+
+
+class JoinPagesDialog(QDialog):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("Joindre deux pages")
+        self.setMinimumWidth(300)
+        self._setup_ui()
+
+    def _setup_ui(self):
+        layout = QVBoxLayout(self)
+
+        layout.addWidget(QLabel("Les pages seront jointes par paires (1+2, 3+4, ...)."))
+
+        grp = QGroupBox("Direction")
+        gl = QVBoxLayout(grp)
+        self.rb_horizontal = QRadioButton("Cote a cote (horizontal)")
+        self.rb_horizontal.setChecked(True)
+        self.rb_vertical = QRadioButton("Dessus/dessous (vertical)")
+        gl.addWidget(self.rb_horizontal)
+        gl.addWidget(self.rb_vertical)
+        layout.addWidget(grp)
+
+        buttons = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel
+        )
+        buttons.accepted.connect(self.accept)
+        buttons.rejected.connect(self.reject)
+        layout.addWidget(buttons)
+
+    def get_settings(self):
+        return {
+            "direction": "horizontal" if self.rb_horizontal.isChecked() else "vertical"
+        }