[chronojump] Jumps Dj capture graph with legend

[Xavier de Blas <xaviblas src gnome org>]

commit cf07e9275f775db6ade9725b907b83bbbe03d7cd
Author: Xavier de Blas <xaviblas gmail com>
Date:   Fri Sep 27 16:58:45 2019 +0200

    Jumps Dj capture graph with legend

 src/gui/eventExecute.cs | 66 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 61 insertions(+), 5 deletions(-)
---
diff --git a/src/gui/eventExecute.cs b/src/gui/eventExecute.cs
index 2c6ed32f..80902af1 100644
--- a/src/gui/eventExecute.cs
+++ b/src/gui/eventExecute.cs
@@ -152,6 +152,7 @@ public partial class ChronoJumpWindow
        
        //for writing text
        Pango.Layout layoutSmall;
+       Pango.Layout layoutSmallMid;
        Pango.Layout layoutMid;
        Pango.Layout layoutBig;
        Pango.Layout layoutMid_run_simple;
@@ -233,6 +234,9 @@ public partial class ChronoJumpWindow
                layoutSmall = new Pango.Layout (event_execute_drawingarea.PangoContext);
                layoutSmall.FontDescription = Pango.FontDescription.FromString ("Courier 7");
                
+               layoutSmallMid = new Pango.Layout (event_execute_drawingarea.PangoContext);
+               layoutSmallMid.FontDescription = Pango.FontDescription.FromString ("Courier 9");
+
                layoutMid = new Pango.Layout (event_execute_drawingarea.PangoContext);
                layoutMid.FontDescription = Pango.FontDescription.FromString ("Courier 11");
 
@@ -1081,6 +1085,15 @@ public partial class ChronoJumpWindow
                else
                        addUnitsToLabel("cm");
 
+               //add legend box
+               if(eventGraph.tc > 0 && eventGraph.tv > 0)
+               {
+                       if(eventGraph.djShowHeights)
+                               addLegend(pen_rojo, Catalog.GetString("Falling height"), pen_azul_claro, 
Catalog.GetString("Jump height"), layoutSmallMid);
+                       else
+                               addLegend(pen_rojo, Catalog.GetString("Contact time"), pen_azul_claro, 
Catalog.GetString("Flight time"), layoutSmallMid);
+               }
+
                //paint reference guide black and green if needed
                //drawGuideOrAVG(pen_black_discont, eventGraphConfigureWin.BlackGuide, alto, ancho, 
topMargin, bottomMargin, maxValue, minValue);
                //drawGuideOrAVG(pen_green_discont, eventGraphConfigureWin.GreenGuide, alto, ancho, 
topMargin, bottomMargin, maxValue, minValue);
@@ -1180,6 +1193,49 @@ public partial class ChronoJumpWindow
                event_graph_label_graph_test.Text = event_graph_label_graph_test.Text + " (" + unit + ")";
        }
 
+       private void addLegend(Gdk.GC pen1, string text1, Gdk.GC pen2, string text2, Pango.Layout layout)
+       {
+               int marginOut = 2;
+               int marginIn = 2;
+               int boxSize = 9;
+
+               layout.SetMarkup(text1);
+               int lWidth1 = 1;
+               int lHeight1 = 1;
+               layout.GetPixelSize(out lWidth1, out lHeight1);
+
+               layout.SetMarkup(text2);
+               int lWidth2 = 1;
+               int lHeight2 = 1;
+               layout.GetPixelSize(out lWidth2, out lHeight2);
+
+               int maxWidth = lWidth1;
+               if(lWidth2 > maxWidth)
+                       maxWidth = lWidth2;
+               maxWidth += 2 * marginIn + boxSize;
+
+               int totalHeight = lHeight1 + lHeight2 + 4 * marginIn;
+
+               //A rectangle drawn filled is 1 pixel smaller in both dimensions than a rectangle outlined.
+               Rectangle rect = new Rectangle(marginOut -1, marginOut -1,  maxWidth +1, totalHeight +1);
+               event_execute_pixmap.DrawRectangle(pen_yellow_bg, false, rect);
+               rect = new Rectangle(marginOut, marginOut,  maxWidth, totalHeight);
+               event_execute_pixmap.DrawRectangle(pen_white, true, rect); //filled
+
+               //box of text1 && text2
+               rect = new Rectangle(marginOut + marginIn, marginOut + marginIn + 2, boxSize, boxSize); //+2 
to align similar to text
+               event_execute_pixmap.DrawRectangle(pen1, true, rect); //filled
+
+               rect = new Rectangle(marginOut + marginIn, 2 * (marginOut + marginIn) + 2 + lHeight1, 
boxSize, boxSize);
+               event_execute_pixmap.DrawRectangle(pen2, true, rect); //filled
+
+               //write text
+               layout.SetMarkup(text1);
+               event_execute_pixmap.DrawLayout (pen_black, marginOut + 2 * marginIn + boxSize, marginOut + 
marginIn, layout);
+               layout.SetMarkup(text2);
+               event_execute_pixmap.DrawLayout (pen_black, marginOut + 2 * marginIn + boxSize, 2 * 
(marginOut + marginIn) + lHeight1, layout);
+       }
+
        private void paintRunSimple (Gtk.DrawingArea drawingarea, PrepareEventGraphRunSimple eventGraph,
                        double maxValue, double minValue, int topMargin, int bottomMargin, bool animate,
                        RunPhaseTimeList runPTL)
@@ -2330,7 +2386,7 @@ public partial class ChronoJumpWindow
        Gdk.GC pen_beige_discont; //Y cols
        Gdk.GC pen_brown_bold; //best tv/tc in rj;
        Gdk.GC pen_violet_bold; //worst tv/tc in rj
-       //Gdk.GC pen_white;
+       Gdk.GC pen_white;
        
 
        void event_execute_configureColors()
@@ -2349,7 +2405,7 @@ public partial class ChronoJumpWindow
                Gdk.Color beige = new Gdk.Color(0x99,0x99,0x99);
                Gdk.Color brown = new Gdk.Color(0xd6,0x88,0x33);
                Gdk.Color violet = new Gdk.Color(0xc4,0x20,0xf3);
-               //Gdk.Color white = new Gdk.Color(0xff,0xff,0xff);
+               Gdk.Color white = new Gdk.Color(0xff,0xff,0xff);
 
                Gdk.Colormap colormap = Gdk.Colormap.System;
                colormap.AllocColor (ref UtilGtk.RED_PLOTS, true, true);
@@ -2364,7 +2420,7 @@ public partial class ChronoJumpWindow
                colormap.AllocColor (ref beige,true,true);
                colormap.AllocColor (ref brown,true,true);
                colormap.AllocColor (ref violet,true,true);
-               //colormap.AllocColor (ref white,true,true);
+               colormap.AllocColor (ref white,true,true);
 
                //-- Configurar los contextos graficos (pinceles)
                pen_rojo = new Gdk.GC(event_execute_drawingarea.GdkWindow);
@@ -2377,7 +2433,7 @@ public partial class ChronoJumpWindow
                pen_rojo_discont = new Gdk.GC(event_execute_drawingarea.GdkWindow);
                pen_azul_claro_discont = new Gdk.GC(event_execute_drawingarea.GdkWindow);
                pen_azul_discont = new Gdk.GC(event_execute_drawingarea.GdkWindow);
-               //pen_white= new Gdk.GC(event_execute_drawingarea.GdkWindow);
+               pen_white= new Gdk.GC(event_execute_drawingarea.GdkWindow);
                pen_black = new Gdk.GC(event_execute_drawingarea.GdkWindow);
                pen_black_90 = new Gdk.GC(event_execute_drawingarea.GdkWindow);
                pen_black_discont = new Gdk.GC(event_execute_drawingarea.GdkWindow);
@@ -2407,7 +2463,7 @@ public partial class ChronoJumpWindow
                pen_yellow_bg.Foreground = yellow_bg;
                pen_magenta.Foreground = magenta;
                pen_black_bars.Foreground = black;
-               //pen_white.Foreground = white;
+               pen_white.Foreground = white;
 
                pen_black_discont.Foreground = black;
                pen_black_discont.SetLineAttributes(1, Gdk.LineStyle.OnOffDash, Gdk.CapStyle.Butt, 
Gdk.JoinStyle.Miter);