From a33de462d67272f47d0a5e38c985b518f9ad4cdc Mon Sep 17 00:00:00 2001
From: Joni <dg-505@web.de>
Date: Tue, 3 Mar 2020 12:45:17 +0100
Subject: [PATCH] GUI modifications: Show/hide checklist marker with a button.
 Display local magnetic variation in Instruments dialog.

---
 gui/dialogs/checklist.xml   | 25 +++++++++++++++++--------
 gui/dialogs/instruments.xml | 20 ++++++++++++++++++++
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/gui/dialogs/checklist.xml b/gui/dialogs/checklist.xml
index 7069c6cf4..15e7e83fe 100644
--- a/gui/dialogs/checklist.xml
+++ b/gui/dialogs/checklist.xml
@@ -400,10 +400,10 @@
     <layout>hbox</layout>
 
     <!-- gap to left border -->
-    <text>
+    <!--text>
       <halign>right</halign>
       <label> </label>
-    </text>
+    </text-->
 
     <text>
       <halign>right</halign>
@@ -414,7 +414,7 @@
       <name>checklist-group-combo</name>
       <property>/sim/gui/dialogs/checklist/selected-checklist-group</property>
       <editable>false</editable>
-      <pref-width>230</pref-width>
+      <pref-width>130</pref-width>
       <halign>fill</halign>
       <binding>
         <command>dialog-apply</command>
@@ -438,7 +438,7 @@
       <name>checklist-combo</name>
       <property>/sim/gui/dialogs/checklist/selected-checklist</property>
       <editable>false</editable>
-      <pref-width>230</pref-width>
+      <pref-width>180</pref-width>
       <halign>fill</halign>
       <binding>
         <command>dialog-apply</command>
@@ -459,16 +459,25 @@
 
     </combo>
 
-    <empty><stretch>true</stretch></empty>
+    <!--empty><stretch>true</stretch></empty-->
 
     <!-- gap to next element -->
-    <text>
+    <!--text>
       <halign>right</halign>
       <label> </label>
-    </text>
+    </text-->
+
+    <button>
+      <pref-width>90</pref-width>
+      <legend>Toggle marker</legend>
+      <binding>
+        <command>property-toggle</command>
+        <property>/sim/model/marker/arrow-enabled</property>
+      </binding>
+    </button>
 
     <checkbox>
-        <label> Transparent</label>
+        <label>Transparent</label>
         <property>/sim/gui/dialogs/checklist/transparent</property>
         <live>true</live>
         <halign>right</halign>
diff --git a/gui/dialogs/instruments.xml b/gui/dialogs/instruments.xml
index 03d24c497..460f4c113 100644
--- a/gui/dialogs/instruments.xml
+++ b/gui/dialogs/instruments.xml
@@ -339,6 +339,26 @@
 
   <hrule/>
 
+  <group>
+    <layout>hbox</layout>
+
+    <text>
+      <halign>right</halign>
+      <label>Local magnetic variation:</label>
+    </text>
+
+    <text>
+      <halign>left</halign>
+      <label>12345678</label>
+      <format>%.1f deg</format>
+      <live>true</live>
+      <property>/environment/magnetic-variation-deg</property>
+    </text>
+
+  </group>
+
+  <hrule/>
+
   <button>
     <legend>Close</legend>
     <default>true</default>