[chronojump] Fixed rare crash on change mode when there are no test types of that mode

[Xavier de Blas <xaviblas src gnome org>]

commit d67644e2ab1e260a99cb5d6fe7a1d9a467263863
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Oct 18 10:12:16 2021 +0200

    Fixed rare crash on change mode when there are no test types of that mode

 src/gui/app1/chronojump.cs | 42 ++++++++++++++++++++++++++++--------------
 1 file changed, 28 insertions(+), 14 deletions(-)
---
diff --git a/src/gui/app1/chronojump.cs b/src/gui/app1/chronojump.cs
index 9f5e2b0c3..986d6442f 100644
--- a/src/gui/app1/chronojump.cs
+++ b/src/gui/app1/chronojump.cs
@@ -7135,29 +7135,37 @@ LogB.Debug("mc finished 5");
                        notebook_execute.CurrentPage = 0;
                        notebook_options_top.CurrentPage = 0;
                        notebook_results.CurrentPage = 0;
-                       changeTestImage(EventType.Types.JUMP.ToString(), 
-                                       currentJumpType.Name, currentJumpType.ImageFileName);
+
+                       if(currentJumpType != null)
+                               changeTestImage(EventType.Types.JUMP.ToString(),
+                                               currentJumpType.Name, currentJumpType.ImageFileName);
                } else if(mode == Constants.Modes.JUMPSREACTIVE)
                {
                        notebook_execute.CurrentPage = 1;
                        notebook_options_top.CurrentPage = 1;
                        notebook_results.CurrentPage = 1;
-                       changeTestImage(EventType.Types.JUMP.ToString(), 
-                                       currentJumpRjType.Name, currentJumpRjType.ImageFileName);
+
+                       if(currentJumpRjType != null)
+                               changeTestImage(EventType.Types.JUMP.ToString(),
+                                               currentJumpRjType.Name, currentJumpRjType.ImageFileName);
                } else if(mode == Constants.Modes.RUNSSIMPLE)
                {
                        notebook_execute.CurrentPage = 2;
                        notebook_options_top.CurrentPage = 2;
                        notebook_results.CurrentPage = 2;
-                       changeTestImage(EventType.Types.RUN.ToString(), 
-                                       currentRunType.Name, currentRunType.ImageFileName);
+
+                       if(currentRunType != null)
+                               changeTestImage(EventType.Types.RUN.ToString(),
+                                               currentRunType.Name, currentRunType.ImageFileName);
                } else if(mode == Constants.Modes.RUNSINTERVALLIC)
                {
                        notebook_execute.CurrentPage = 3;
                        notebook_options_top.CurrentPage = 3;
                        notebook_results.CurrentPage = 3;
-                       changeTestImage(EventType.Types.RUN.ToString(), 
-                                       currentRunIntervalType.Name, currentRunIntervalType.ImageFileName);
+
+                       if(currentRunIntervalType != null)
+                               changeTestImage(EventType.Types.RUN.ToString(),
+                                               currentRunIntervalType.Name, 
currentRunIntervalType.ImageFileName);
                } else if(mode == Constants.Modes.RUNSENCODER)
                {
                        notebook_execute.CurrentPage = 8;
@@ -7182,8 +7190,10 @@ LogB.Debug("mc finished 5");
                        notebook_execute.CurrentPage = 5;
                        notebook_options_top.CurrentPage = 5;
                        notebook_results.CurrentPage = 5;
-                       changeTestImage(EventType.Types.REACTIONTIME.ToString(), 
-                                       currentReactionTimeType.Name, currentReactionTimeType.ImageFileName);
+
+                       if(currentReactionTimeType != null)
+                               changeTestImage(EventType.Types.REACTIONTIME.ToString(),
+                                               currentReactionTimeType.Name, 
currentReactionTimeType.ImageFileName);
                } else if(mode == Constants.Modes.OTHER)
                {
                        if(radio_mode_multi_chronopic_small.Active)
@@ -7191,14 +7201,18 @@ LogB.Debug("mc finished 5");
                                notebook_execute.CurrentPage = 7;
                                notebook_options_top.CurrentPage = 7;
                                notebook_results.CurrentPage = 7;
-                               changeTestImage(EventType.Types.MULTICHRONOPIC.ToString(),
-                                               currentMultiChronopicType.Name, 
currentMultiChronopicType.ImageFileName);
+
+                               if(currentMultiChronopicType != null)
+                                       changeTestImage(EventType.Types.MULTICHRONOPIC.ToString(),
+                                                       currentMultiChronopicType.Name, 
currentMultiChronopicType.ImageFileName);
                        } else { //pulses
                                notebook_execute.CurrentPage = 6;
                                notebook_options_top.CurrentPage = 6;
                                notebook_results.CurrentPage = 6;
-                               changeTestImage(EventType.Types.PULSE.ToString(),
-                                               currentPulseType.Name, currentPulseType.ImageFileName);
+
+                               if(currentPulseType != null)
+                                       changeTestImage(EventType.Types.PULSE.ToString(),
+                                                       currentPulseType.Name, 
currentPulseType.ImageFileName);
                        }
                }