[chronojump] If on encoder chronopic is disconnected, gui works as expected with new Detect big button

[Xavier de Blas <xaviblas src gnome org>]

commit fabe58cbe2cd9c7f7b870bc349ee3d258d0f41a4
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Jul 11 11:48:47 2022 +0200

    If on encoder chronopic is disconnected, gui works as expected with new Detect big button

 src/gui/app1/encoder.cs | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)
---
diff --git a/src/gui/app1/encoder.cs b/src/gui/app1/encoder.cs
index 6dd7fca8f..aef590080 100644
--- a/src/gui/app1/encoder.cs
+++ b/src/gui/app1/encoder.cs
@@ -1009,7 +1009,7 @@ public partial class ChronoJumpWindow
                        }
                }
 
-               //This notebook has capture (signal plotting), and curves (shows R graph)       
+               //This notebook has capture (signal plotting), and curves (shows R graph)
                if(notebook_encoder_capture.CurrentPage == 1)
                        notebook_encoder_capture.PrevPage();
 
@@ -1044,7 +1044,7 @@ public partial class ChronoJumpWindow
                                preferences.encoderCaptureTimeIM,
                                EncoderCaptureIMCalc.InactivityEndTime);
                
-               //tis notebook has capture (signal plotting), and curves (shows R graph)        
+               //tis notebook has capture (signal plotting), and curves (shows R graph)
                if(notebook_encoder_capture.CurrentPage == 1)
                        notebook_encoder_capture.PrevPage();
                
@@ -6271,6 +6271,23 @@ public partial class ChronoJumpWindow
                                {
                                        new DialogMessage(Constants.MessageTypes.WARNING,
                                                        Catalog.GetString("Sorry, cannot start capture."));
+
+                                       // 1) sensitivize again
+                                       sensitiveGuiEventDone(); //senstivize again
+
+                                       // 2) show the detect big button
+                                       button_detect_show_hide (true);
+
+                                       // 3) erase cairo barplot (remove the Capturing...)
+                                       cairoPaintBarsPre = new CairoPaintBarplotPreEncoder (
+                                                       encoder_capture_curves_bars_drawingarea_cairo,
+                                                       preferences.fontType.ToString());
+
+                                       // 4) this notebook has capture (signal plotting), and curves (shows 
R graph)
+                                       if(notebook_encoder_capture.CurrentPage == 0 )
+                                               notebook_encoder_capture.NextPage();
+                                       encoder_pulsebar_capture.Fraction = 1;
+
                                        return;
                                }
 
@@ -7322,7 +7339,7 @@ public partial class ChronoJumpWindow
                                sensitiveGuiEventDone();
                        
                        if(encoderProcessCancel || encoderProcessProblems) {
-                               //tis notebook has capture (signal plotting), and curves (shows R graph)      
  
+                               //this notebook has capture (signal plotting), and curves (shows R graph)
                                if(notebook_encoder_capture.CurrentPage == 0 )
                                        notebook_encoder_capture.NextPage();
                                encoder_pulsebar_capture.Fraction = 1;
@@ -7348,7 +7365,7 @@ public partial class ChronoJumpWindow
                        } 
                        else if(action == encoderActions.CURVES || action == encoderActions.CURVES_AC || 
action == encoderActions.LOAD) 
                        {
-                               //this notebook has capture (signal plotting), and curves (shows R graph)     
  
+                               //this notebook has capture (signal plotting), and curves (shows R graph)
                                if(notebook_encoder_capture.CurrentPage == 0)
                                        notebook_encoder_capture.NextPage();