From 5a5cf4bac9af84252b28e56b15b71708f8cd3b7b Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Fri, 9 Dec 2016 12:45:29 +0100
Subject: gui, logic: allow toggle neck displacement

It was only possible to zero the values to turn it off.
---
 gui/options-dialog.cpp  |  2 ++
 gui/options-dialog.ui   | 64 ++++++++++++++++++++++++++++++++++---------------
 logic/main-settings.hpp |  2 ++
 logic/tracker.cpp       |  7 +++---
 4 files changed, 53 insertions(+), 22 deletions(-)

diff --git a/gui/options-dialog.cpp b/gui/options-dialog.cpp
index 8190b0f7..51cfbcc7 100644
--- a/gui/options-dialog.cpp
+++ b/gui/options-dialog.cpp
@@ -92,6 +92,8 @@ OptionsDialog::OptionsDialog(std::function<void(bool)> pause_keybindings) :
 
     tie_setting(main.tracklogging_enabled, ui.tracklogging_enabled);
 
+    tie_setting(main.neck_enable, ui.neck_enable);
+
     ui.disable_translation->setChecked(QSettings(OPENTRACK_ORG).value("disable-translation", false).toBool());
 
     struct tmp
diff --git a/gui/options-dialog.ui b/gui/options-dialog.ui
index 250e2b9e..df7c80ff 100644
--- a/gui/options-dialog.ui
+++ b/gui/options-dialog.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>404</width>
-    <height>597</height>
+    <height>596</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -1520,20 +1520,30 @@
        </item>
        <item>
         <widget class="QGroupBox" name="groupBox_12">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
          <property name="title">
           <string>Neck displacement</string>
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_13">
+          <property name="spacing">
+           <number>7</number>
+          </property>
           <item>
            <widget class="QLabel" name="label_33">
             <property name="text">
-             <string>Eyes will be offset from the pivot of rotation, assumed to be the neck. Set to zeros in order to disable.
-
-It also works with relative translation disabled.</string>
+             <string>Eyes will be offset from the pivot of rotation, assumed to be the neck. Set to zeros in order to disable. It also works with relative translation disabled.</string>
             </property>
             <property name="wordWrap">
              <bool>true</bool>
             </property>
+            <property name="margin">
+             <number>0</number>
+            </property>
            </widget>
           </item>
           <item>
@@ -1546,7 +1556,7 @@ It also works with relative translation disabled.</string>
               <number>0</number>
              </property>
              <property name="topMargin">
-              <number>0</number>
+              <number>9</number>
              </property>
              <property name="rightMargin">
               <number>0</number>
@@ -1557,7 +1567,7 @@ It also works with relative translation disabled.</string>
              <property name="spacing">
               <number>0</number>
              </property>
-             <item row="0" column="0">
+             <item row="1" column="0">
               <widget class="QLabel" name="label_31">
                <property name="sizePolicy">
                 <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
@@ -1570,7 +1580,7 @@ It also works with relative translation disabled.</string>
                </property>
               </widget>
              </item>
-             <item row="0" column="1">
+             <item row="1" column="1">
               <widget class="QSpinBox" name="neck_y">
                <property name="sizePolicy">
                 <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
@@ -1589,7 +1599,26 @@ It also works with relative translation disabled.</string>
                </property>
               </widget>
              </item>
-             <item row="1" column="0">
+             <item row="2" column="1">
+              <widget class="QSpinBox" name="neck_z">
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+                 <horstretch>4</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
+               <property name="alignment">
+                <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+               </property>
+               <property name="suffix">
+                <string> cm</string>
+               </property>
+               <property name="maximum">
+                <number>50</number>
+               </property>
+              </widget>
+             </item>
+             <item row="2" column="0">
               <widget class="QLabel" name="label_32">
                <property name="sizePolicy">
                 <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
@@ -1602,22 +1631,19 @@ It also works with relative translation disabled.</string>
                </property>
               </widget>
              </item>
-             <item row="1" column="1">
-              <widget class="QSpinBox" name="neck_z">
+             <item row="0" column="0">
+              <widget class="QCheckBox" name="neck_enable">
                <property name="sizePolicy">
-                <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
-                 <horstretch>4</horstretch>
+                <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+                 <horstretch>0</horstretch>
                  <verstretch>0</verstretch>
                 </sizepolicy>
                </property>
-               <property name="alignment">
-                <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-               </property>
-               <property name="suffix">
-                <string> cm</string>
+               <property name="styleSheet">
+                <string notr="true"/>
                </property>
-               <property name="maximum">
-                <number>50</number>
+               <property name="text">
+                <string>Enable</string>
                </property>
               </widget>
              </item>
diff --git a/logic/main-settings.hpp b/logic/main-settings.hpp
index ea1d93f3..749f6d25 100644
--- a/logic/main-settings.hpp
+++ b/logic/main-settings.hpp
@@ -75,6 +75,7 @@ struct main_settings
     value<bool> center_at_startup;
     value<int> center_method;
     value<int> neck_y, neck_z;
+    value<bool> neck_enable;
     key_opts key_start_tracking, key_stop_tracking, key_toggle_tracking, key_restart_tracking;
     key_opts key_center, key_toggle, key_zero;
     key_opts key_toggle_press, key_zero_press;
@@ -107,6 +108,7 @@ struct main_settings
         center_method(b, "centering-method", true),
         neck_y(b, "neck-height", 0),
         neck_z(b, "neck-depth", 0),
+        neck_enable(b, "neck-enable", false),
         key_start_tracking(b, "start-tracking"),
         key_stop_tracking(b, "stop-tracking"),
         key_toggle_tracking(b, "toggle-tracking"),
diff --git a/logic/tracker.cpp b/logic/tracker.cpp
index 25e067a7..332828a9 100644
--- a/logic/tracker.cpp
+++ b/logic/tracker.cpp
@@ -281,15 +281,16 @@ void Tracker::logic()
 
         euler_t neck, rel;
 
+        if (s.neck_enable)
         {
             double ny = s.neck_y, nz = -s.neck_z;
 
             if (ny != 0 || nz != 0)
             {
                 const rmat R = euler_to_rmat(
-                                   euler_t(value(Yaw)   * d2r,
-                                           value(Pitch) * d2r,
-                                           value(Roll)  * d2r));
+                       euler_t(value(Yaw)   * d2r,
+                               value(Pitch) * d2r,
+                               value(Roll)  * d2r));
                 euler_t xyz(0, ny, nz);
                 t_compensate(R, xyz, xyz, false, false, false);
                 neck(TX) = xyz(TX);
-- 
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