Merge pull request #2725 from dls-controls/css610_legend_area

Resize the legend area when traces are hidden
ControlSystemStudio · Mar 13, 2024 · 6b1fce6 · 6b1fce6
2 parents 449df66 + 2346488
commit 6b1fce6
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/...ized-plugins/org.csstudio.swt.rtplot/src/org/csstudio/swt/rtplot/internal/LegendPart.java b/...ized-plugins/org.csstudio.swt.rtplot/src/org/csstudio/swt/rtplot/internal/LegendPart.java
@@ -66,22 +66,25 @@ public int getDesiredHeight(final GC gc, final int bounds_width,
         final Font orig_font = gc.getFont();
         gc.setFont(font);
 
+        int items = 0;
         int max_width = 1, max_height = 1; // Start with 1 pixel to avoid later div-by-0
         for (Trace<XTYPE> trace : traces)
         {
+            if (!trace.isVisible())
+                continue;
             final Point size = gc.textExtent(trace.getLabel());
             if (size.x > max_width)
                 max_width = size.x;
             if (size.y > max_height)
                 max_height = size.y;
+            items++;
         }
         // Arrange in grid with some extra space
         grid_x = max_width + max_height / 2;
         grid_y = max_height;
 
         gc.setFont(orig_font);
 
-        final int items = traces.size();
         final int items_per_row = Math.max(1, bounds_width / grid_x); // Round down, counting full items
         final int rows = (items + items_per_row-1) / items_per_row;   // Round up
         return rows * grid_y;