[chronojump] CairoBars show value on top instead of on the middle (to not be confusing with h axis)

[Xavier de Blas <xaviblas src gnome org>]

commit fe7b7ada5e7dc70e0116184b2447a9c2c44ed1ee
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Aug 23 18:53:45 2021 +0200

    CairoBars show value on top instead of on the middle (to not be confusing with h axis)

 src/gui/cairo/bars.cs | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/src/gui/cairo/bars.cs b/src/gui/cairo/bars.cs
index de17a62cd..c84c00dd9 100644
--- a/src/gui/cairo/bars.cs
+++ b/src/gui/cairo/bars.cs
@@ -208,7 +208,6 @@ public abstract class CairoBars : CairoGeneric
 
                        drawRoundedRectangle (true, x, y, barWidth, graphHeight -y -outerMargins, 4, g, 
colorBackground);
 
-                       //print the result at the middle of the bar
                        plotResultOnBar(x + barWidth/2, y, graphHeight -outerMargins, p.Y);
 
                        //print the type at bottom
@@ -282,7 +281,8 @@ public abstract class CairoBars : CairoGeneric
        {
                Cairo.TextExtents te;
                te = g.TextExtents(Util.TrimDecimals(result,2));
-                       
+
+               bool textAboveBar = true;
                /*
                 * text and surrounding rect are in the middle of bar
                 * if bar is so small, then text and rect will not be fully shown
@@ -290,12 +290,22 @@ public abstract class CairoBars : CairoGeneric
                 * use 2*lHeight in order to accomodate "Simulated" message below
                 */
                double yStart = (y+alto)/2 - te.Height/2;
+               if(textAboveBar)
+               {
+                       //print the result at top of the bar (better because there is the X grid and in the 
middle of the bar is confusing)
+                       yStart = y - 1.5*te.Height;
+               }
+
                LogB.Information(string.Format("y: {0}, alto: {1}, yStart: {2}", y, alto, yStart));
 
                if( (yStart + te.Height) > alto )
                        yStart = alto - te.Height;
 
-               g.Color = yellow;
+               if(textAboveBar)
+                       g.Color = white; //to just hide the horizontal grid
+               else
+                       g.Color = yellow; //to have contrast with the bar
+
                g.Rectangle(x - te.Width/2, yStart-1, te.Width, te.Height+2);
                g.Fill();