Add new PyQt UI

laser_control/gui/dialogs.py

@@ -0,0 +1,74 @@
+"""Small dialogs used by the main laser-control window."""
+
+from __future__ import annotations
+
+from PyQt6.QtCore import QRegularExpression
+from PyQt6.QtGui import QRegularExpressionValidator
+from PyQt6.QtWidgets import (
+    QCheckBox,
+    QDialog,
+    QDialogButtonBox,
+    QLabel,
+    QLineEdit,
+    QVBoxLayout,
+)
+
+from laser_control.constants import PROFILE_NAME_ALLOWED_PATTERN, PROFILE_NAME_MAX_LENGTH
+
+
+class ProfileSaveDialog(QDialog):
+    """Ask the user for a short profile name before saving it to the device SD card."""
+
+    def __init__(self, *, custom_waveform_available: bool, parent=None) -> None:
+        super().__init__(parent)
+        self.setWindowTitle("Сохранить профиль на SD")
+        self.setModal(True)
+
+        layout = QVBoxLayout(self)
+
+        note = QLabel(
+            "Введите короткое имя профиля для маленького LCD на устройстве. "
+            f"Допустимо до {PROFILE_NAME_MAX_LENGTH} ASCII-символов: буквы, цифры, пробел, '-' и '_'."
+        )
+        note.setWordWrap(True)
+
+        self._name_edit = QLineEdit(self)
+        self._name_edit.setPlaceholderText("Например: Factory Saw")
+        self._name_edit.setMaxLength(PROFILE_NAME_MAX_LENGTH)
+        self._name_edit.setValidator(
+            QRegularExpressionValidator(QRegularExpression(PROFILE_NAME_ALLOWED_PATTERN), self)
+        )
+
+        self._waveform_checkbox = QCheckBox(
+            "Сохранить и пользовательскую форму из вкладки «Своя форма»",
+            self,
+        )
+        self._waveform_checkbox.setVisible(custom_waveform_available)
+
+        self._buttons = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel,
+            parent=self,
+        )
+        self._buttons.accepted.connect(self.accept)
+        self._buttons.rejected.connect(self.reject)
+        self._buttons.button(QDialogButtonBox.StandardButton.Ok).setEnabled(False)
+
+        self._name_edit.textChanged.connect(self._update_accept_state)
+
+        layout.addWidget(note)
+        layout.addWidget(self._name_edit)
+        layout.addWidget(self._waveform_checkbox)
+        layout.addWidget(self._buttons)
+
+    def profile_name(self) -> str:
+        """Return the trimmed display name entered by the user."""
+        return self._name_edit.text().strip()
+
+    def include_custom_waveform(self) -> bool:
+        """Return True when a valid custom waveform should be saved with the profile."""
+        return self._waveform_checkbox.isVisible() and self._waveform_checkbox.isChecked()
+
+    def _update_accept_state(self) -> None:
+        self._buttons.button(QDialogButtonBox.StandardButton.Ok).setEnabled(
+            bool(self.profile_name())
+        )