[chronojump] cairo printText can be aligned at right

[Xavier de Blas <xaviblas src gnome org>]

commit 9c1485c7f2509064e97c6751f5ab2b3d878fafe2
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Aug 17 12:46:48 2020 +0200

    cairo printText can be aligned at right

 src/gui/cairo/jumpsDjOptimalFall.cs   |  2 +-
 src/gui/cairo/jumpsEvolution.cs       |  2 +-
 src/gui/cairo/jumpsWeightFVProfile.cs |  2 +-
 src/gui/cairo/xy.cs                   | 22 ++++++++++++++--------
 4 files changed, 17 insertions(+), 11 deletions(-)
---
diff --git a/src/gui/cairo/jumpsDjOptimalFall.cs b/src/gui/cairo/jumpsDjOptimalFall.cs
index 5055bcc7..9475e674 100644
--- a/src/gui/cairo/jumpsDjOptimalFall.cs
+++ b/src/gui/cairo/jumpsDjOptimalFall.cs
@@ -37,7 +37,7 @@ public class JumpsDjOptimalFallGraph : CairoXY
 
                g.SetFontSize(16);
                printText(area.Allocation.Width /2, area.Allocation.Height /2, 24, textHeight,
-                               needToExecuteJumpsStr + " " + jumpType + ".", g, true);
+                               needToExecuteJumpsStr + " " + jumpType + ".", g, alignTypes.CENTER);
 
                endGraph();
        }
diff --git a/src/gui/cairo/jumpsEvolution.cs b/src/gui/cairo/jumpsEvolution.cs
index 74b2fa7a..b4c2108a 100644
--- a/src/gui/cairo/jumpsEvolution.cs
+++ b/src/gui/cairo/jumpsEvolution.cs
@@ -36,7 +36,7 @@ public class JumpsEvolutionGraph : CairoXY
 
                g.SetFontSize(16);
                printText(area.Allocation.Width /2, area.Allocation.Height /2, 24, textHeight,
-                               needToExecuteJumpsStr + " " + jumpType + ".", g, true);
+                               needToExecuteJumpsStr + " " + jumpType + ".", g, alignTypes.CENTER);
 
                endGraph();
        }
diff --git a/src/gui/cairo/jumpsWeightFVProfile.cs b/src/gui/cairo/jumpsWeightFVProfile.cs
index c3dc40dc..c34cc3a4 100644
--- a/src/gui/cairo/jumpsWeightFVProfile.cs
+++ b/src/gui/cairo/jumpsWeightFVProfile.cs
@@ -119,7 +119,7 @@ public class JumpsWeightFVProfileGraph : CairoXY
                        message = Catalog.GetString("V0 is not > 0.");
 
                g.SetFontSize(16);
-               printText(area.Allocation.Width /2, area.Allocation.Height /2, 24, textHeight, message, g, 
true);
+               printText(area.Allocation.Width /2, area.Allocation.Height /2, 24, textHeight, message, g, 
alignTypes.CENTER);
        }
 
        public override void Do()
diff --git a/src/gui/cairo/xy.cs b/src/gui/cairo/xy.cs
index 49230831..9039ea60 100644
--- a/src/gui/cairo/xy.cs
+++ b/src/gui/cairo/xy.cs
@@ -293,8 +293,8 @@ public abstract class CairoXY
                g.LineTo(outerMargins, graphHeight - outerMargins);
                g.LineTo(graphWidth - outerMargins, graphHeight - outerMargins);
                g.Stroke ();
-               printText(2, Convert.ToInt32(outerMargins/2), 0, textHeight, getYAxisLabel(), g, false);
-               printText(graphWidth - Convert.ToInt32(outerMargins/2), graphHeight - outerMargins, 0, 
textHeight, getXAxisLabel(), g, false);
+               printText(2, Convert.ToInt32(outerMargins/2), 0, textHeight, getYAxisLabel(), g, 
alignTypes.LEFT);
+               printText(graphWidth - Convert.ToInt32(outerMargins/2), graphHeight - outerMargins, 0, 
textHeight, getXAxisLabel(), g, alignTypes.LEFT);
 
                g.Stroke ();
                g.LineWidth = 2;
@@ -471,7 +471,7 @@ public abstract class CairoXY
                if(bold)
                        g.SelectFontFace("Helvetica", Cairo.FontSlant.Normal, Cairo.FontWeight.Bold);
 
-               printText(graphWidth, Convert.ToInt32(graphHeight/2 + textHeight*2*line), 0, textHeight, 
text, g, false);
+               printText(graphWidth, Convert.ToInt32(graphHeight/2 + textHeight*2*line), 0, textHeight, 
text, g, alignTypes.LEFT);
 
                if(bold)
                        g.SelectFontFace("Helvetica", Cairo.FontSlant.Normal, Cairo.FontWeight.Normal);
@@ -628,13 +628,13 @@ public abstract class CairoXY
        {
                g.MoveTo(outerMargins, ytemp);
                g.LineTo(graphWidth - outerMargins, ytemp);
-               printText(Convert.ToInt32(outerMargins/2), ytemp, 0, textHeight, text, g, true);
+               printText(Convert.ToInt32(outerMargins/2), ytemp, 0, textHeight, text, g, alignTypes.CENTER);
        }
        protected void paintVerticalGridLine(int xtemp, string text)
        {
                g.MoveTo(xtemp, graphHeight - outerMargins);
                g.LineTo(xtemp, outerMargins);
-               printText(xtemp, graphHeight - Convert.ToInt32(outerMargins/2), 0, textHeight, text, g, true);
+               printText(xtemp, graphHeight - Convert.ToInt32(outerMargins/2), 0, textHeight, text, g, 
alignTypes.CENTER);
        }
 
 
@@ -762,15 +762,21 @@ public abstract class CairoXY
                return new Cairo.Color(red/256.0, green/256.0, blue/256.0);
        }
 
-       protected void printText (int x, int y, int height, int textHeight, string text, Cairo.Context g, 
bool centered)
+       protected enum alignTypes { LEFT, CENTER, RIGHT }
+       protected void printText (int x, int y, int height, int textHeight, string text, Cairo.Context g, 
alignTypes align)
        {
                int moveToLeft = 0;
-               if(centered)
+               if(align == alignTypes.CENTER || align == alignTypes.RIGHT)
                {
                        Cairo.TextExtents te;
                        te = g.TextExtents(text);
-                       moveToLeft = Convert.ToInt32(te.Width/2);
+                       
+                       if(align == alignTypes.CENTER)
+                               moveToLeft = Convert.ToInt32(te.Width/2);
+                       else
+                               moveToLeft = Convert.ToInt32(te.Width);
                }
+
                g.MoveTo( x - moveToLeft, ((y+y+height)/2) + textHeight/2 );
                g.ShowText(text);
        }