Set AutoScroll for Any Relative Time

docs/overview/plot_section.md

@@ -28,6 +28,13 @@ For instance, toggling the 1h button will result in the last hour of data being
 
 
 
+## Time Span LineEdit
+
+Next to the time span buttons is a LineEdit where the user can enter any timescale as an int or float, with the last character specified as
+'m', 'h', 'd', 'w', or 'M' to specify minutes, hours, days, weeks, or months. Entering a timescale here and hitting the return key will
+result in the specified timescale being displayed on the plot. For example, entering '1h' will display the last hour of data, '2w' will display the last two weeks.
+
+
 ## Plot Settings
 
 Users can change the settings of the plot using the settings button in the top left corner of the plot marked with a :octicons-gear-24: icon.

trace/main.py

@@ -14,6 +14,7 @@
     QDialog,
     QWidget,
     QMenuBar,
+    QLineEdit,
     QSplitter,
     QFileDialog,
     QHBoxLayout,
@@ -231,6 +232,12 @@ def build_toolbar(self, parent: QWidget) -> QWidget:
         timespan_buttons = self.build_timespan_buttons(toolbar_widget)
         tool_layout.addWidget(timespan_buttons)
 
+        self.timespan_lineEdit = QLineEdit()
+        self.timespan_lineEdit.returnPressed.connect(self.parse_time_input)
+        self.timespan_lineEdit.setFixedWidth(120)
+        self.timespan_lineEdit.setPlaceholderText("Enter timescale")
+        tool_layout.addWidget(self.timespan_lineEdit)
+
         return toolbar_widget
 
     def build_timespan_buttons(self, parent: QWidget) -> QWidget:
@@ -333,6 +340,38 @@ def build_footer(self, parent: QWidget) -> QWidget:
 
         return footer_widget
 
+    def parse_time_input(self) -> None:
+        """
+        Parse user entered time input. Allows user to add 'm' 'h', 'd', 'w', or 'M'
+        to the end of a float timescale to select minutes, hours, days, weeks, or months.
+        Timescale multiplier is set accordingly, and if the remaining entry can be
+        converted to a float, the timescale is changed accordingly.
+        """
+
+        MULTIPLIERS = {"m": 60, "h": 3600, "d": 86400, "w": 604800, "M": 2628300}
+
+        time_str = self.timespan_lineEdit.text()
+
+        if time_str == "":
+            return
+
+        if time_str[0] == "-":
+            time_str = time_str[1:]
+
+        final_char = time_str[-1]
+        if final_char not in MULTIPLIERS:
+            return
+
+        try:
+            time = float(time_str[:-1])
+        except ValueError:
+            return
+
+        multiplier = MULTIPLIERS.get(final_char)
+
+        time_sec = time * multiplier
+        self.set_auto_scroll_span(time_sec)
+
     @Slot(Path)
     def set_file_indicator(self, file_path: Path) -> None:
         """Set the file indicator label to the given file path.