fix swwep update crash #668 (#669)

.gitignore

@@ -48,6 +48,7 @@ docs/_build/*
 cover/*
 MANIFEST
 **/_version.py
+.flatpak-builder/*
 
 # Per-project virtualenvs
 .venv*/

nanovna-saver.py

@@ -26,12 +26,12 @@ import sys
 src = os.path.join(os.path.dirname(__file__), "src")
 
 if os.path.exists(src):
-   sys.path.insert(0, src)
+    sys.path.insert(0, src)
 
 # pylint: disable-next=wrong-import-position
 import NanoVNASaver.__main__
 
 # The traditional test does not make sense here.
-assert __name__ == '__main__'
+assert __name__ == "__main__"
 
 NanoVNASaver.__main__.main()

src/NanoVNASaver/Controls/SweepControl.py

@@ -217,8 +217,8 @@ class SweepControl(Control):
 
     def update_sweep(self):
         self.app.sweep.update(
-            start    = self.get_start(),
-            end      = self.get_end(),
-            segments = self.get_segments(),
-            points   = self.app.vna.datapoints,
+            start=self.get_start(),
+            end=self.get_end(),
+            segments=self.get_segments(),
+            points=self.app.vna.datapoints,
         )

src/NanoVNASaver/Hardware/JNCRadio_VNA_3G.py

@@ -41,7 +41,7 @@ class JNCRadio_VNA_3G(NanoVNA):
 
     def getScreenshot(self) -> QPixmap:
         logger.debug("Capturing screenshot...")
-        self.serial.timeout=8
+        self.serial.timeout = 8
         if not self.connected():
             return QPixmap()
         try:

src/NanoVNASaver/Hardware/SV4401A.py

@@ -41,7 +41,7 @@ class SV4401A(NanoVNA):
 
     def getScreenshot(self) -> QPixmap:
         logger.debug("Capturing screenshot...")
-        self.serial.timeout=8
+        self.serial.timeout = 8
         if not self.connected():
             return QPixmap()
         try:

src/NanoVNASaver/Hardware/SV6301A.py

@@ -41,7 +41,7 @@ class SV6301A(NanoVNA):
 
     def getScreenshot(self) -> QPixmap:
         logger.debug("Capturing screenshot...")
-        self.serial.timeout=8
+        self.serial.timeout = 8
         if not self.connected():
             return QPixmap()
         try:

src/NanoVNASaver/Marker/Values.py

@@ -98,6 +98,6 @@ class Value:
                 ]
 
         self.freq = s11[1].freq
-        self.s11 = s11[index - 1 : index + 2]
+        self.s11 = s11[index - 1: index + 2]
         if s21:
-            self.s21 = s21[index - 1 : index + 2]
+            self.s21 = s21[index - 1: index + 2]

src/NanoVNASaver/NanoVNASaver.py

@@ -304,7 +304,6 @@ class NanoVNASaver(QWidget):
             self.marker_data_layout.addWidget(m.get_data_layout())
 
         scroll2 = QtWidgets.QScrollArea()
-        # scroll2.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarPolicy.ScrollBarAlwaysOn)
         scroll2.setWidgetResizable(True)
         scroll2.setVisible(True)
 
@@ -468,7 +467,7 @@ class NanoVNASaver(QWidget):
 
         logger.debug("Finished building interface")
 
-    def auto_connect( self ): # connect if there is exactly one detected serial device
+    def auto_connect(self):  # connect if there is exactly one detected serial device
         if self.serial_control.inp_port.count() == 1:
             self.serial_control.connect_device()
 
@@ -512,11 +511,8 @@ class NanoVNASaver(QWidget):
             self.sweepSource = source
         else:
             time = strftime('%Y-%m-%d %H:%M:%S', localtime())
-            name = self.sweep.properties.name
-            if name:
-                self.sweepSource = name + ' ' + time
-            else:
-                self.sweepSource = time
+            name = self.sweep.properties.name or 'nanovna'
+            self.sweepSource = f'{name}_{time}'
 
     def markerUpdated(self, marker: Marker):
         with self.dataLock:

src/NanoVNASaver/Settings/Sweep.py

@@ -40,12 +40,12 @@ class Properties(NamedTuple):
 
 class Sweep:
     def __init__(self,
-        start: int = 3600000,
-        end: int = 30000000,
-        points: int = 101,
-        segments: int = 1,
-        properties: "Properties" = Properties(),
-    ):
+                 start: int = 3600000,
+                 end: int = 30000000,
+                 points: int = 101,
+                 segments: int = 1,
+                 properties: "Properties" = Properties(),
+                 ):
         self._start = start
         self._end = end
         self._points = points
@@ -112,10 +112,10 @@ class Sweep:
 
     def update(self, start: int, end: int, segments: int, points: int) -> None:
         with self._lock:
-            self._start    = start
-            self._end      = end
-            self._segments = segments
-            self._points   = points
+            self._start = max(start, 1)
+            self._end = max(end, start)
+            self._segments = max(segments, 1)
+            self._points = max(points, 1)
             self.check()
 
     def set_name(self, name: str) -> None:
@@ -136,11 +136,11 @@ class Sweep:
 
     def check(self):
         if (
-            self.segments <= 0
-            or self.points <= 0
-            or self.start < 0
-            or self.end <= 0
-            or self.stepsize < 1
+            self.segments < 1
+            or self.points < 1
+            or self.start < 1
+            or self.end < self.start
+            or self.stepsize < 0
         ):
             raise ValueError(f"Illegal sweep settings: {self}")
 

src/NanoVNASaver/Version.py

@@ -22,16 +22,13 @@ import typing
 logger = logging.getLogger(__name__)
 
 
-_RXP = re.compile(
-        r"""^
-        \D*
-        (?P<major>\d+)\.
-        (?P<minor>\d+)\.?
-        (?P<revision>\d+)?
-        (?P<note>.*)
-        $""",
-        re.VERBOSE,
-    )
+_RXP = re.compile(r"""^
+    \D*
+    (?P<major>\d+)\.
+    (?P<minor>\d+)\.?
+    (?P<revision>\d+)?
+    (?P<note>.*)
+    $""", re.VERBOSE)
 
 
 class _Version(typing.NamedTuple):

src/NanoVNASaver/Windows/About.py

@@ -42,7 +42,7 @@ class AboutWindow(QtWidgets.QWidget):
         make_scrollable(self, top_layout)
 
         upper_layout = QtWidgets.QHBoxLayout()
-        top_layout.addLayout( upper_layout )
+        top_layout.addLayout(upper_layout)
         QtGui.QShortcut(QtCore.Qt.Key.Key_Escape, self, self.hide)
 
         icon_layout = QtWidgets.QVBoxLayout()
@@ -84,7 +84,7 @@ class AboutWindow(QtWidgets.QWidget):
         info_layout.addWidget(QtWidgets.QLabel(""))
 
         lower_layout = QtWidgets.QVBoxLayout()
-        top_layout.addLayout( lower_layout )
+        top_layout.addLayout(lower_layout)
 
         btn_check_version = QtWidgets.QPushButton("Check for NanoVNASaver updates")
         btn_check_version.clicked.connect(self.findUpdates)
@@ -95,7 +95,7 @@ class AboutWindow(QtWidgets.QWidget):
         update_hbox.addWidget(btn_check_version)
         update_hbox.addStretch()
         lower_layout.addLayout(update_hbox)
-        lower_layout.addWidget( self.updateLabel )
+        lower_layout.addWidget(self.updateLabel)
 
         lower_layout.addStretch()
 

src/NanoVNASaver/Windows/CalibrationSettings.py

@@ -282,7 +282,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     "If you are certain you know what you are doing, click"
                     " Yes."
                 ),
-                QtWidgets.QMessageBox.StandardButton.Yes | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Yes |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
                 QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
@@ -798,7 +799,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     " cable unconnected if desired.\n\n"
                     "Press Ok when you are ready to continue."
                 ),
-                QtWidgets.QMessageBox.StandardButton.Ok | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Ok |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
             response = open_step.exec()
@@ -824,7 +826,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     " NanoVNA.\n\n"
                     "Press Ok when you are ready to continue."
                 ),
-                QtWidgets.QMessageBox.StandardButton.Ok | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Ok |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
             response = load_step.exec()
@@ -884,7 +887,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     " port 0.\n\n"
                     "Press Ok when you are ready to continue."
                 ),
-                QtWidgets.QMessageBox.StandardButton.Ok | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Ok |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
             response = isolation_step.exec()
@@ -910,7 +914,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     " port 0 and port 1 of the NanoVNA.\n\n"
                     "Press Ok when you are ready to continue."
                 ),
-                QtWidgets.QMessageBox.StandardButton.Ok | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Ok |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
             response = through_step.exec()
@@ -935,7 +940,8 @@ class CalibrationWindow(QtWidgets.QWidget):
                     "The calibration process is now complete. Press"
                     ' "Apply" to apply the calibration parameters.'
                 ),
-                QtWidgets.QMessageBox.StandardButton.Apply | QtWidgets.QMessageBox.StandardButton.Cancel,
+                QtWidgets.QMessageBox.StandardButton.Apply |
+                QtWidgets.QMessageBox.StandardButton.Cancel,
             )
 
             response = apply_step.exec()

src/NanoVNASaver/Windows/DeviceSettings.py

@@ -30,6 +30,7 @@ logger = logging.getLogger(__name__)
 class DeviceSettingsWindow(QtWidgets.QWidget):
     custom_points_checkBox = QtWidgets.QCheckBox
     custom_points_Eidt = QtWidgets.QLineEdit
+
     def __init__(self, app: QtWidgets.QWidget):
         super().__init__()
 
@@ -99,7 +100,9 @@ class DeviceSettingsWindow(QtWidgets.QWidget):
         self.custom_points_checkBox = QtWidgets.QCheckBox("Custom points")
         self.custom_points_checkBox.stateChanged.connect(self.customPoint_check)
         self.custom_points_Eidt = QtWidgets.QLineEdit("101")
-        self.custom_points_Eidt.setValidator(QIntValidator(self.app.vna.sweep_points_min,self.app.vna.sweep_points_max))
+        self.custom_points_Eidt.setValidator(
+            QIntValidator(self.app.vna.sweep_points_min,
+                          self.app.vna.sweep_points_max))
         self.custom_points_Eidt.textEdited.connect(self.updatecustomPoint)
         self.custom_points_Eidt.setDisabled(True)
 
@@ -152,7 +155,9 @@ class DeviceSettingsWindow(QtWidgets.QWidget):
 
         if "Customizable data points" in features:
             self.datapoints.clear()
-            self.custom_points_Eidt.setValidator(QIntValidator(self.app.vna.sweep_points_min,self.app.vna.sweep_points_max))
+            self.custom_points_Eidt.setValidator(
+                QIntValidator(self.app.vna.sweep_points_min,
+                              self.app.vna.sweep_points_max))
             cur_dps = self.app.vna.datapoints
             for d in sorted(self.app.vna.valid_datapoints):
                 self.datapoints.addItem(str(d))
@@ -200,16 +205,16 @@ class DeviceSettingsWindow(QtWidgets.QWidget):
 
     def customPoint_check(self, validate_data: bool):
         self.datapoints.setDisabled(validate_data)
-        self.custom_points_Eidt.setDisabled(not(validate_data))
+        self.custom_points_Eidt.setDisabled(not validate_data)
 
-    def updatecustomPoint(self,points_str: str):
+    def updatecustomPoint(self, points_str: str):
         if self.custom_points_checkBox.isChecked():
-            #points_str = self.custom_points_Eidt.text()
+            # points_str = self.custom_points_Eidt.text()
             if len(points_str) == 0:
                 return
             points = int(points_str)
             if points < self.app.vna.sweep_points_min:
-                return 
+                return
             if points > self.app.vna.sweep_points_max:
                 points = int(self.app.vna.sweep_points_max)
 

src/NanoVNASaver/Windows/DisplaySettings.py

@@ -551,7 +551,7 @@ class DisplaySettingsWindow(QtWidgets.QWidget):
             logger.info("Invalid color")
             return
 
-        setattr( Chart.color, attr, color ) # update trace color immediately
+        setattr(Chart.color, attr, color)  # update trace color immediately
         palette = sender.palette()
         palette.setColor(QPalette.ColorRole.ButtonText, color)
         sender.setPalette(palette)