[longomatch] Make sure the scale value is properly calculated from the rate. This was corrupting the event playba

[Andoni Morales Alastruey <amorales src gnome org>]

commit 83f2ea1dfd670ae5dba47e751d9aad1d3e0be759
Author: Julien Moutte <julien fluendo com>
Date:   Fri Feb 6 17:31:28 2015 +0100

    Make sure the scale value is properly calculated from the rate.
    This was corrupting the event playback rate stored and used for rendering.

 LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)
---
diff --git a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
index 9df25e3..f81767a 100644
--- a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
+++ b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
@@ -393,7 +393,7 @@ namespace LongoMatch.Gui
                        }
                        segment.Start = new Time (-1);
                        segment.Stop = new Time (int.MaxValue);
-                       SetScaleValue (SCALE_FPS);
+                       SetScaleValue (1);
                        //timescale.Sensitive = true;
                        loadedPlay = null;
                }
@@ -523,7 +523,7 @@ namespace LongoMatch.Gui
                        if (readyToSeek) {
                                Log.Debug ("Player is ready to seek, seeking to " +
                                        seekTime.ToMSecondsString ());
-                               SetScaleValue ((int)(rate * SCALE_FPS));
+                               SetScaleValue (rate);
                                player.Rate = (double)rate;
                                Seek (seekTime, true);
                                if (playing) {
@@ -580,10 +580,14 @@ namespace LongoMatch.Gui
                        LoadImage (CurrentFrame, drawing);
                }
 
-               void SetScaleValue (int value)
+               void SetScaleValue (float rate)
                {
                        emitRateScale = false;
-                       vscale1.Value = value;
+                       if (rate > 1) {
+                               vscale1.Value = rate - 1 + SCALE_FPS;
+                       } else {
+                               vscale1.Value = rate * SCALE_FPS;
+                       }
                        emitRateScale = true;
                }