[longomatch] Deactivate the timer button if it is stopped

[Andoni Morales Alastruey <amorales src gnome org>]

commit 459516d620f64ff704e5da14c06acd799cd0f7a3
Author: Jorge Zapata <jorgeluis zapata gmail com>
Date:   Wed Apr 22 17:05:02 2015 +0200

    Deactivate the timer button if it is stopped

 .../CanvasObjects/Dashboard/TimerObject.cs         |   27 ++++++++++++++++---
 1 files changed, 22 insertions(+), 5 deletions(-)
---
diff --git a/LongoMatch.Drawing/CanvasObjects/Dashboard/TimerObject.cs 
b/LongoMatch.Drawing/CanvasObjects/Dashboard/TimerObject.cs
index 750baba..0120802 100644
--- a/LongoMatch.Drawing/CanvasObjects/Dashboard/TimerObject.cs
+++ b/LongoMatch.Drawing/CanvasObjects/Dashboard/TimerObject.cs
@@ -53,21 +53,38 @@ namespace LongoMatch.Drawing.CanvasObjects.Dashboard
                public Time CurrentTime {
                        set {
                                bool update = false;
+                               bool wasActive = Active;
+                               bool isActive = wasActive;
 
-                               if (Button.StartTime != null) {
-                                       if (value < Button.StartTime) {
+                               if (!wasActive) {
+                                       if (Button.StartTime != null) {
+                                               isActive = true;
+                                               update = true;
+                                       }
+                               } else {
+                                       // In case the node is no longer valid, unactivate it
+                                       if (Button.StartTime == null) {
+                                               isActive = false;
+                                               update = true;
+                                       } else if (value < Button.StartTime) {
+                                               // In case the application seeks to a position before the 
moment
+                                               // the button was clicked, make sure to cancel such node
                                                Button.Cancel ();
-                                               Active = false;
+                                               update = true;
+                                               isActive = false;
                                        }
                                }
+
                                if (value != null && currentTime != null &&
                                    currentTime.TotalSeconds != value.TotalSeconds) {
                                        update = true;
                                }
+
                                currentTime = value;
-                               if (update && Button.StartTime != null) {
+
+                               if (update) {
                                        // It is possible that the button is activated but not thtough a click
-                                       Active = true;
+                                       Active = isActive;
                                        ReDraw ();
                                }
                        }