[chronojump] Fixed 3 unneded updated sql preferences (when they had no change)

[Xavier de Blas <xaviblas src gnome org>]

commit f36524448e94269c1f72e6149438101fee34ced4
Author: Xavier de Blas <xaviblas gmail com>
Date:   Fri Feb 7 11:37:19 2020 +0100

    Fixed 3 unneded updated sql preferences (when they had no change)

 src/gui/preferences.cs | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)
---
diff --git a/src/gui/preferences.cs b/src/gui/preferences.cs
index 6306d242..49232891 100644
--- a/src/gui/preferences.cs
+++ b/src/gui/preferences.cs
@@ -1740,17 +1740,19 @@ public class PreferencesWindow
                        SqlitePreferences.Update("showAngle", 
PreferencesWindowBox.checkbutton_angle.Active.ToString(), true);
                        preferences.showAngle = PreferencesWindowBox.checkbutton_angle.Active;
                }
-               
+
                if(PreferencesWindowBox.checkbutton_show_tv_tc_index.Active) {
-                       SqlitePreferences.Update("showQIndex", 
PreferencesWindowBox.radiobutton_show_q_index.Active.ToString(), true);
-                       SqlitePreferences.Update("showDjIndex", 
PreferencesWindowBox.radiobutton_show_dj_index.Active.ToString(), true);
-                       preferences.showQIndex = PreferencesWindowBox.radiobutton_show_q_index.Active;
-                       preferences.showDjIndex = PreferencesWindowBox.radiobutton_show_dj_index.Active;
+                       preferences.showQIndex = Preferences.PreferencesChange(
+                                       "showQIndex", preferences.showQIndex,
+                                       PreferencesWindowBox.radiobutton_show_q_index.Active);
+                       preferences.showDjIndex = Preferences.PreferencesChange(
+                                       "showDjIndex", preferences.showDjIndex,
+                                       PreferencesWindowBox.radiobutton_show_dj_index.Active);
                } else {
-                       SqlitePreferences.Update("showQIndex", "False", true);
-                       SqlitePreferences.Update("showDjIndex", "False", true);
-                       preferences.showQIndex = false;
-                       preferences.showDjIndex = false; 
+                       preferences.showQIndex = Preferences.PreferencesChange(
+                                       "showQIndex", preferences.showQIndex, false);
+                       preferences.showDjIndex = Preferences.PreferencesChange(
+                                       "showDjIndex", preferences.showDjIndex, false);
                }
 
                preferences.jumpsDjGraphHeights = Preferences.PreferencesChange(
@@ -1956,9 +1958,10 @@ public class PreferencesWindow
                else // (PreferencesWindowBox.radio_encoder_1RM_weighted3.Active)
                        encoder1RMMethod = Constants.Encoder1RMMethod.WEIGHTED3;
 
-               SqlitePreferences.Update("encoder1RMMethod", encoder1RMMethod.ToString(), true);
-               preferences.encoder1RMMethod = encoder1RMMethod;
-
+               if(preferences.encoder1RMMethod != encoder1RMMethod) {
+                       SqlitePreferences.Update("encoder1RMMethod", encoder1RMMethod.ToString(), true);
+                       preferences.encoder1RMMethod = encoder1RMMethod;
+               }
 
                //---- end of encoder other
 
@@ -2058,13 +2061,13 @@ public class PreferencesWindow
                        preferences.videoStopAfter = selected_camera_stop_after;
                }
 
-               //end of camera stuff
-
-               if(PreferencesWindowBox.radio_export_latin.Active) {
+               if(preferences.CSVExportDecimalSeparator == "POINT" && 
PreferencesWindowBox.radio_export_latin.Active)
+               {
                        SqlitePreferences.Update("CSVExportDecimalSeparator","COMMA", true); 
                        preferences.CSVExportDecimalSeparator = "COMMA";
                }
-               else {
+               else if(preferences.CSVExportDecimalSeparator == "COMMA" && ! 
PreferencesWindowBox.radio_export_latin.Active)
+               {
                        SqlitePreferences.Update("CSVExportDecimalSeparator","POINT", true); 
                        preferences.CSVExportDecimalSeparator = "POINT";
                }