[chronojump] simple run graph with axis

[Xavier de Blas <xaviblas src gnome org>]

commit 294fedd254b7a3ad0bc64ab902a32f1efec2650a
Author: Xavier de Blas <xaviblas gmail com>
Date:   Thu Jun 18 11:14:11 2020 +0200

    simple run graph with axis

 src/gui/eventExecute.cs | 50 +++++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 27 deletions(-)
---
diff --git a/src/gui/eventExecute.cs b/src/gui/eventExecute.cs
index 6a8e7fc0..b40309d9 100644
--- a/src/gui/eventExecute.cs
+++ b/src/gui/eventExecute.cs
@@ -826,7 +826,7 @@ public partial class ChronoJumpWindow
        
                double maxValue = 0;
                double minValue = 0;
-               int topMargin = 20; 
+               int topMargin = 30;
                int bottomMargin = 0; 
 
                //if max value of graph is automatic
@@ -1143,27 +1143,7 @@ public partial class ChronoJumpWindow
 
                drawGuideOrAVG(pen_yellow_discont, eventGraph.personAVGAtSQL, alto, ancho, topMargin, 
bottomMargin, maxValue, minValue, guideWidthEnum.FULL);
 
-               //paint the 0 X line
-               event_execute_pixmap.DrawLine(pen_black_90,
-                               10, alto -bottomMargin -1,
-                               ancho -10, alto -bottomMargin -1);
-               //paint the 0 Y line
-               event_execute_pixmap.DrawLine(pen_black_90,
-                               10, alto -bottomMargin -1,
-                               10, topMargin - 5); //-5 to be a bit upper than the horizontal guides
-               //write units
-               //always use fall (cm) to be able to do comparisons between different jump types
-               //if(eventGraph.djShowHeights)
-                       layout.SetMarkup("cm");
-               //else
-               //      layout.SetMarkup("s");
-
-               int lWidth = 1;
-               int lHeight = 1;
-               layout.GetPixelSize(out lWidth, out lHeight);
-               event_execute_pixmap.DrawLayout (pen_gris, Convert.ToInt32(10 - .5 * lWidth),
-                               Convert.ToInt32(.5 * topMargin -7), layout); //-7 for aligning with Courier 7 
font baseline
-
+               paintSimpleAxis(ancho, alto, topMargin, bottomMargin, layout, "cm");
 
                //calculate separation between series and bar width
                int distanceBetweenCols = 
Convert.ToInt32((ancho-event_execute_rightMargin)*(1+.5)/eventGraph.jumpsAtSQL.Count) -
@@ -1354,6 +1334,26 @@ public partial class ChronoJumpWindow
                return true;
        }
 
+       private void paintSimpleAxis(int ancho, int alto, int topMargin, int bottomMargin, Pango.Layout 
layout, string text)
+       {
+               // 1) paint the 0 X line
+               event_execute_pixmap.DrawLine(pen_black_90,
+                               10, alto -bottomMargin -1,
+                               ancho -10, alto -bottomMargin -1);
+               // 2) paint the 0 Y line
+               event_execute_pixmap.DrawLine(pen_black_90,
+                               10, alto -bottomMargin -1,
+                               10, topMargin - 5); //-5 to be a bit upper than the horizontal guides
+               // 3) write units
+               layout.SetMarkup(text);
+
+               int lWidth = 1;
+               int lHeight = 1;
+               layout.GetPixelSize(out lWidth, out lHeight);
+               event_execute_pixmap.DrawLayout (pen_gris, Convert.ToInt32(10 - .5 * lWidth),
+                               Convert.ToInt32(.5 * topMargin -7), layout); //-7 for aligning with Courier 7 
font baseline
+       }
+
        private void plotSimulatedMessage(int xcenter, int y, Pango.Layout layout)
        {
                layout.SetMarkup(event_execute_label_simulated);
@@ -1668,7 +1668,6 @@ public partial class ChronoJumpWindow
        {
                int ancho=drawingarea.Allocation.Width;
                int alto=drawingarea.Allocation.Height;
-               addUnitsToLabel("m/s");
 
                //fix problem on show graph at Chronojump start
                if(event_execute_drawingarea == null ||
@@ -1734,10 +1733,7 @@ public partial class ChronoJumpWindow
 
                drawGuideOrAVG(pen_yellow_discont, eventGraph.personAVGAtSQL, alto, ancho, topMargin, 
bottomMargin, maxValue, minValue, guideWidthEnum.FULL);
 
-               //paint the 0 line
-               event_execute_pixmap.DrawLine(pen_black_90,
-                               10, alto -bottomMargin -1,
-                               ancho -10, alto -bottomMargin -1);
+               paintSimpleAxis(ancho, alto, topMargin, bottomMargin, layoutSmallMid, "m/s");
 
                //calculate bar width
                int distanceBetweenCols = 
Convert.ToInt32((ancho-event_execute_rightMargin)*(1+.5)/eventGraph.runsAtSQL.Length) -