[chronojump] RaceAnalyzer speedometer cares of text height when graphed small

[Xavier de Blas <xaviblas src gnome org>]

commit 934c9e488f4043c971582102bf4559f124d8a2af
Author: Xavier de Blas <xaviblas gmail com>
Date:   Sat Aug 21 12:31:33 2021 +0200

    RaceAnalyzer speedometer cares of text height when graphed small

 src/gui/cairo/radial.cs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/src/gui/cairo/radial.cs b/src/gui/cairo/radial.cs
index 4125e9632..5b8ae3e1c 100644
--- a/src/gui/cairo/radial.cs
+++ b/src/gui/cairo/radial.cs
@@ -28,8 +28,8 @@ using Mono.Unix;
 public class CairoRadial : CairoGeneric
 {
        private Cairo.Context g;
-       private int textHeight = 12;
-       private int margin = 1;
+       private int textHeight;
+       private int margin = 4;
        private int offsetV = 6; //to move the graph vertically
        private Gtk.DrawingArea area;
        private string font;
@@ -64,7 +64,10 @@ public class CairoRadial : CairoGeneric
                graphWidth = area.Allocation.Width - 2*margin;
                graphHeight = area.Allocation.Height - 2*margin;
 
-               if(graphWidth > 1200 || graphHeight > 1000)
+               textHeight = 12;
+               if(graphWidth < 300 || graphHeight < 300)
+                       textHeight = 10;
+               else if(graphWidth > 1200 || graphHeight > 1000)
                        textHeight = 16;
 
                g.SetSourceRGB(0,0,0);