Make timeline X position dynamic based on connection lines

- Added TIMELINE_LEFT_SPACING constant for spacing between connection lines and timeline
- Added _calculate_max_connection_line_x() to find rightmost connection line position
- Added _calculate_timeline_x() to dynamically calculate timeline X position
- Timeline now adjusts based on number of selected persons and their connection lines
- Updated on_draw() and find_event_at_position() to use dynamic timeline_x
- Timeline maintains minimum position to prevent overlap with year labels
- Event symbols and text now position relative to connection lines on the left

MyTimeline.py

@@ -111,6 +111,7 @@ CONNECTION_LINE_COLOR = (0.2, 0.5, 1.0, 0.75)  # Brighter, more opaque blue
 CONNECTION_LINE_WIDTH = 3.5
 CONNECTION_VERTICAL_LINE_X = 5  # Left of year markers
 CONNECTION_LINE_SPACING = 25  # Pixels between vertical lines for different persons
+TIMELINE_LEFT_SPACING = 20  # Spacing between rightmost connection line and timeline
 
 # Marker State Colors
 SELECTED_MARKER_COLOR = (0.2, 0.4, 0.9)  # Blue highlight for selected person's events
@@ -2180,6 +2181,48 @@ class MyTimelineView(NavigationView):
         """
         return CONNECTION_VERTICAL_LINE_X + (person_index * CONNECTION_LINE_SPACING)
 
+    def _calculate_max_connection_line_x(self) -> float:
+        """
+        Calculate the maximum (rightmost) X position of connection lines.
+        
+        Returns:
+            float: The X coordinate of the rightmost connection line, or 0 if no persons selected.
+        """
+        if not self.selected_person_handles:
+            return 0
+        
+        num_selected = len(self.selected_person_handles)
+        if num_selected == 0:
+            return 0
+        
+        # The rightmost line is at the highest index
+        max_index = num_selected - 1
+        return CONNECTION_VERTICAL_LINE_X + (max_index * CONNECTION_LINE_SPACING)
+
+    def _calculate_timeline_x(self) -> float:
+        """
+        Calculate the dynamic timeline X position based on connection lines.
+        
+        The timeline should be positioned to the right of the rightmost connection line
+        with appropriate spacing. If no connection lines exist, use the default margin.
+        
+        Returns:
+            float: The X coordinate for the timeline.
+        """
+        max_connection_x = self._calculate_max_connection_line_x()
+        
+        if max_connection_x == 0:
+            # No connection lines, use default margin
+            return TIMELINE_MARGIN_LEFT
+        
+        # Position timeline to the right of connection lines with spacing
+        timeline_x = max_connection_x + TIMELINE_LEFT_SPACING
+        
+        # Ensure minimum timeline X to prevent overlap with year labels
+        # Year labels need space on the left (around 130-150 pixels)
+        min_timeline_x = TIMELINE_MARGIN_LEFT
+        return max(timeline_x, min_timeline_x)
+
     def _calculate_y_position(self, date_sort: int, min_date: int, date_range: int,
                               timeline_y_start: float, timeline_y_end: float) -> float:
         """
@@ -2583,7 +2626,8 @@ class MyTimelineView(NavigationView):
         # Get widget dimensions in drawing coordinates
         height = self.drawing_area.get_allocated_height() / self.zoom_level
         
-        timeline_x = TIMELINE_MARGIN_LEFT
+        # Calculate dynamic timeline X position based on connection lines
+        timeline_x = self._calculate_timeline_x()
         timeline_y_start = TIMELINE_MARGIN_TOP
         timeline_y_end = height - TIMELINE_MARGIN_BOTTOM
         
@@ -2877,8 +2921,8 @@ class MyTimelineView(NavigationView):
         # Calculate date range
         min_date, max_date, date_range = self._calculate_date_range()
 
-        # Draw timeline axis
+        # Calculate dynamic timeline X position based on connection lines
-        timeline_x = TIMELINE_MARGIN_LEFT
+        timeline_x = self._calculate_timeline_x()
         timeline_y_start = TIMELINE_MARGIN_TOP
         timeline_y_end = height - TIMELINE_MARGIN_BOTTOM