Add option to enable/disable the ICS rotation animation

Usefull for people who's devices are to slow, or for them
who simply not like the animation as to ICS-ish

Requires a reboot of the device.

Change-Id: I58db6dde05b72edc744e48cc3db444da0a0e2146

res/values-de/strings.xml

@@ -37,6 +37,8 @@
 
     <string name="pref_electron_beam_animation_on">Einschalten animieren</string>
     <string name="pref_electron_beam_animation_off">Ausschalten animieren</string>
+    <string name="pref_rotation_animation_title">Drehungs-Animation</string>
+    <string name="pref_rotation_animation_summary">Drehung des Bildschirminhaltes bei Drehung des Gerätes animieren (benötigt Neustart)</string>
 
     <!-- User interface: Tablet tweaks -->
     <string name="tablet_tweaks_title_head">Tablet-Einstellungen</string>

res/values-es/strings.xml

@@ -37,6 +37,8 @@
 
     <string name="pref_electron_beam_animation_on">Animación al encender pantalla</string>
     <string name="pref_electron_beam_animation_off">Animación al apagar pantalla</string>
+    <string name="pref_rotation_animation_title">Animación para rotación</string>
+    <string name="pref_rotation_animation_summary">Animación para las rotaciones de la pantalla (requiere reiniciar)</string>
 
     <!-- User interface: Tablet tweaks -->
     <string name="tablet_tweaks_title_head">Ajustes Tablet</string>

res/values-ja/strings.xml

@@ -37,6 +37,8 @@
 
     <string name="pref_electron_beam_animation_on">スクリーンオンアニメ</string>
     <string name="pref_electron_beam_animation_off">スクリーンオフアニメ</string>
+    <string name="pref_rotation_animation_title">回転アニメ</string>
+    <string name="pref_rotation_animation_summary">再起動が必要</string>
 
     <!-- User interface: Tablet tweaks -->
     <string name="tablet_tweaks_title_head">タブレット調整</string>

res/values-nl/strings.xml

@@ -37,6 +37,8 @@
 
     <string name="pref_electron_beam_animation_on">Animatie bij aanzetten scherm</string>
     <string name="pref_electron_beam_animation_off">Animatie bij uitschakelen scherm</string>
+    <string name="pref_rotation_animation_title">Rotatie-animatie</string>
+    <string name="pref_rotation_animation_summary">Vereist een herstart van het toestel</string>
 
     <!-- User interface: Tablet tweaks -->
     <string name="tablet_tweaks_title_head">Tablet-tweaks</string>

res/values/strings.xml

@@ -38,6 +38,8 @@
 
     <string name="pref_electron_beam_animation_on">Screen-on animation</string>
     <string name="pref_electron_beam_animation_off">Screen-off animation</string>
+    <string name="pref_rotation_animation_title">Rotation animation</string>
+    <string name="pref_rotation_animation_summary">Requires a reboot</string>
 
     <!-- User interface: Tablet tweaks -->
     <string name="tablet_tweaks_title_head">Tablet tweaks</string>

res/xml/display_settings.xml

@@ -19,6 +19,11 @@
         <CheckBoxPreference android:key="electron_beam_animation_off"
             android:title="@string/pref_electron_beam_animation_off" />
 
+        <!-- Rotation animation -->
+        <CheckBoxPreference android:key="pref_rotation_animation"
+            android:title="@string/pref_rotation_animation_title"
+            android:summary="@string/pref_rotation_animation_summary"/>
+
     </PreferenceCategory>
 
     <!-- Rotation -->

src/com/cyanogenmod/cmparts/activities/DisplayActivity.java

@@ -30,6 +30,7 @@
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
 import android.provider.Settings;
+import android.os.SystemProperties;
 
 public class DisplayActivity extends PreferenceActivity implements OnPreferenceChangeListener {
 
@@ -42,9 +43,13 @@ public class DisplayActivity extends PreferenceActivity implements OnPreferenceC
 
     private static final String ELECTRON_BEAM_ANIMATION_OFF = "electron_beam_animation_off";
 
+    private static final String ROTATION_ANIMATION_PREF = "pref_rotation_animation";
+
     private PreferenceScreen mBacklightScreen;
 
     /* Other */
+    private static final String ROTATION_ANIMATION_PROP = "persist.sys.rotationanimation";
+
     private static final String ROTATION_0_PREF = "pref_rotation_0";
     private static final String ROTATION_90_PREF = "pref_rotation_90";
     private static final String ROTATION_180_PREF = "pref_rotation_180";
@@ -59,6 +64,8 @@ public class DisplayActivity extends PreferenceActivity implements OnPreferenceC
 
     private CheckBoxPreference mElectronBeamAnimationOff;
 
+    private CheckBoxPreference mRotationAnimationPref;
+
     private CheckBoxPreference mRotation0Pref;
     private CheckBoxPreference mRotation90Pref;
     private CheckBoxPreference mRotation180Pref;
@@ -101,6 +108,10 @@ public void onCreate(Bundle savedInstanceState) {
                 .removePreference(mElectronBeamAnimationOff);
         }
 
+        /* Rotation animation */
+        mRotationAnimationPref = (CheckBoxPreference) prefSet.findPreference(ROTATION_ANIMATION_PREF);
+        mRotationAnimationPref.setChecked(SystemProperties.getBoolean(ROTATION_ANIMATION_PROP, true));
+
         /* Rotation */
         mRotation0Pref = (CheckBoxPreference) prefSet.findPreference(ROTATION_0_PREF);
         mRotation90Pref = (CheckBoxPreference) prefSet.findPreference(ROTATION_90_PREF);
@@ -144,6 +155,12 @@ public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preferen
                     Settings.System.ELECTRON_BEAM_ANIMATION_OFF, value ? 1 : 0);
         }
 
+        if (preference == mRotationAnimationPref) {
+            SystemProperties.set(ROTATION_ANIMATION_PROP,
+                    mRotationAnimationPref.isChecked() ? "1" : "0");
+            return true;
+        }
+
         if (preference == mRotation0Pref ||
             preference == mRotation90Pref ||
             preference == mRotation180Pref ||