Method closeEvent

SLiCAP/schematic/window.py:925–979

(self, event)

    # ── close / quit ─────────────────────────────────────────────────────────

    def closeEvent(self, event):
        if not self._dirty:
            event.accept()
            return

        dlg = QDialog(self)
        dlg.setWindowTitle("Unsaved changes")
        layout = QVBoxLayout(dlg)

        layout.addWidget(QLabel("Save changes to:"))
        fname = str(self._current_path) if self._current_path else ""
        name_edit = QLineEdit(fname)
        name_edit.setMinimumWidth(360)
        name_edit.setPlaceholderText("(choose a filename)")
        layout.addWidget(name_edit)

        btn_row = QHBoxLayout()
        btn_row.addStretch(1)
        discard_btn = QPushButton("Close without saving")
        cancel_btn  = QPushButton("Cancel")
        ok_btn      = QPushButton("OK")
        ok_btn.setDefault(True)
        btn_row.addWidget(discard_btn)
        btn_row.addStretch(1)
        btn_row.addWidget(cancel_btn)
        btn_row.addWidget(ok_btn)
        layout.addLayout(btn_row)

        _action = {"v": None}   # "discard", "save", or None (cancel)
        discard_btn.clicked.connect(lambda: (_action.update({"v": "discard"}), dlg.accept()))
        cancel_btn.clicked.connect(dlg.reject)
        ok_btn.clicked.connect(lambda: (_action.update({"v": "save"}), dlg.accept()))

        if not dlg.exec():          # Cancel or window-close → stay in app
            event.ignore()
            return

        if _action["v"] == "discard":
            event.accept()
            return

        # "save" — save to the given path (or open Save As if blank)
        typed = name_edit.text().strip()
        if typed:
            p = Path(typed)
            if p.suffix.lower() != ".slicap_sch":
                p = p.with_suffix(".slicap_sch")
            self._save_to(p)
        else:
            self._on_save_as()

        if self._dirty:
            event.ignore()   # save was cancelled or failed
        else:
            event.accept()