Control panel width increased a few pixels to allow Markers -> "refer…

…ence" checkbox to be capitalized like the other checkboxes and radio buttons. Now able to be displayed as "Reference" without cutting off the text of the "Enable Delta Marker" checkbox.

Added icon_48x48.ico so that pyinstaller/auto-py-to-exe can create a Windows executable with the actual NanoVNA-Saver project icon instead of a generic Python icon. The .ico was created by converting the icon_48x48.png image.

"Files" button in control panel changed to "Files ..." to be consistent with other "..." actions where a user will take additional action after pressing the button.

Minor corrections in the Calibration page "Are you sure?" and "Calibration assistant" pop-ups where text was being run together. e.g. "doso" instead of "do so" etc.

Fix issue: NanoVNA-Saver#663

src/NanoVNASaver/Controls/Control.py

@@ -29,6 +29,6 @@ class Control(QtWidgets.QGroupBox):
     def __init__(self, app: QtWidgets.QWidget, title: str = ""):
         super().__init__()
         self.app = app
-        self.setMaximumWidth(240)
+        self.setMaximumWidth(250)
         self.setTitle(title)
         self.layout = QtWidgets.QFormLayout(self)

src/NanoVNASaver/Controls/MarkerControl.py

@@ -55,7 +55,7 @@ def __init__(self, app: QtWidgets.QWidget):
         self.check_delta = QCheckBox("Enable Delta Marker")
         self.check_delta.toggled.connect(self.toggle_delta)
 
-        self.check_delta_reference = QCheckBox("reference")
+        self.check_delta_reference = QCheckBox("Reference")
         self.check_delta_reference.toggled.connect(self.toggle_delta_reference)
 
         layout2 = QtWidgets.QHBoxLayout()

src/NanoVNASaver/NanoVNASaver.py

@@ -373,7 +373,6 @@ def __init__(self):
         tdr_control_box.setTitle("TDR")
         tdr_control_layout = QtWidgets.QFormLayout()
         tdr_control_box.setLayout(tdr_control_layout)
-        tdr_control_box.setMaximumWidth(240)
 
         self.tdr_result_label = QtWidgets.QLabel()
         self.tdr_result_label.setMinimumHeight(20)
@@ -407,7 +406,6 @@ def __init__(self):
         ###############################################################
 
         reference_control_box = QtWidgets.QGroupBox()
-        reference_control_box.setMaximumWidth(240)
         reference_control_box.setTitle("Reference sweep")
         reference_control_layout = QtWidgets.QFormLayout(reference_control_box)
 
@@ -447,18 +445,15 @@ def __init__(self):
 
         btn_display_setup = QtWidgets.QPushButton("Display setup ...")
         btn_display_setup.setMinimumHeight(20)
-        btn_display_setup.setMaximumWidth(240)
         btn_display_setup.clicked.connect(lambda: self.display_window("setup"))
 
         btn_about = QtWidgets.QPushButton("About ...")
         btn_about.setMinimumHeight(20)
-        btn_about.setMaximumWidth(240)
 
         btn_about.clicked.connect(lambda: self.display_window("about"))
 
-        btn_open_file_window = QtWidgets.QPushButton("Files")
+        btn_open_file_window = QtWidgets.QPushButton("Files ...")
         btn_open_file_window.setMinimumHeight(20)
-        btn_open_file_window.setMaximumWidth(240)
 
         btn_open_file_window.clicked.connect(
             lambda: self.display_window("file")

src/NanoVNASaver/Windows/CalibrationSettings.py

@@ -271,14 +271,14 @@ def checkExpertUser(self):
                 self,
                 "Are you sure?",
                 (
-                    "Use of the manual calibration buttons is non-intuitive,"
+                    "Use of the manual calibration buttons is non-intuitive"
                     " and primarily suited for users with very specialized"
-                    " needs. The buttons do not sweep for you, nor do"
+                    " needs. The buttons do not sweep for you nor do"
                     " they interact with the NanoVNA calibration.\n\n"
                     "If you are trying to do a calibration of the NanoVNA, do"
-                    "so on the device itself instead. If you are trying to do"
-                    "a calibration with NanoVNA-Saver, use the Calibration"
-                    "Assistant if possible.\n\n"
+                    " so on the device itself instead. If you are trying to do"
+                    ' a calibration with NanoVNA-Saver, use the "Calibration'
+                    ' assistant" if possible.\n\n'
                     "If you are certain you know what you are doing, click"
                     " Yes."
                 ),
@@ -580,7 +580,7 @@ def calculate(self):
             cal_element.open_c3 = (
                 getFloatValue(self.open_c3_input.text()) / 1.0e45
             )
-            cal_element.openLength = (
+            cal_element.open_length = (
                 getFloatValue(self.open_length.text()) / 1.0e12
             )
 
@@ -711,16 +711,16 @@ def automaticCalibration(self):
             "Calibration assistant",
             (
                 "This calibration assistant will help you create a calibration"
-                " in the NanoVNASaver application.  It will sweep the"
-                "standards for you, and guide you through the process.<br><br>"
+                " in the NanoVNASaver application. It will sweep the"
+                " standards for you and guide you through the process.<br><br>"
                 "Before starting, ensure you have Open, Short and Load"
-                " standards available, and the cables you wish to have"
-                " calibrated with the device connected.<br><br>"
+                " standards available and the cables you wish to have"
+                " calibrated connected to the device.<br><br>"
                 'If you want a 2-port calibration, also have a "through"'
-                " connector to hand.<br><br>"
+                " connector on hand.<br><br>"
                 "<b>The best results are achieved by having the NanoVNA"
-                " calibrated on-device for the full span of interest and saved"
-                " to save slot 0 before starting.</b><br><br>"
+                " calibrated on-device for the full span of interest and stored"
+                " in save slot 0 before starting.</b><br><br>"
                 "Once you are ready to proceed, press Ok."
             ),
             QtWidgets.QMessageBox.StandardButton.Ok | QtWidgets.QMessageBox.StandardButton.Cancel,
@@ -932,7 +932,7 @@ def automaticCalibrationStep(self):
                 QtWidgets.QMessageBox.Icon.Information,
                 "Calibrate complete",
                 (
-                    "The calibration process is now complete.  Press"
+                    "The calibration process is now complete. Press"
                     ' "Apply" to apply the calibration parameters.'
                 ),
                 QtWidgets.QMessageBox.StandardButton.Apply | QtWidgets.QMessageBox.StandardButton.Cancel,