Overhaul auto-brightness level UI.

This changes a few things:
- Don't imply a 'bucket' type of algorithm is used by showing an ambient
  brightness range for each line
- Allow manually entering the screen brightness
- Add a preview window for the cubic spline interpolation
- Add a help text

JIRA:CYAN-612
Change-Id: I64274280872b9fe4f6fdc368d654aca81e0a4e0c

4 files changed, 115 insertions, 18 deletions

diff --git a/res/layout/auto_brightness_help.xml b/res/layout/auto_brightness_help.xml
new file mode 100644
index 0000000..21daa92
--- /dev/null
+++ b/res/layout/auto_brightness_help.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The CyanogenMod Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:padding="6dip"
+        android:text="@string/auto_brightness_help_text" />
+
+</ScrollView>
diff --git a/res/layout/auto_brightness_lux_config.xml b/res/layout/auto_brightness_level_setup.xml
index 8d411bc..72d7e99 100644
--- a/res/layout/auto_brightness_lux_config.xml
+++ b/res/layout/auto_brightness_level_setup.xml
@@ -24,10 +24,10 @@
     <TextView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:text="@string/auto_brightness_start_lux" />
+            android:paddingTop="8dip"
+            android:text="@string/auto_brightness_lux" />
 
-    <EditText android:id="@+id/start_lux"
-            android:enabled="false"
+    <EditText android:id="@+id/lux"
             android:singleLine="true"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ -38,13 +38,24 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:paddingTop="8dip"
-            android:text="@string/auto_brightness_end_lux" />
+            android:text="@string/auto_brightness_backlight" />
 
-    <EditText android:id="@+id/end_lux"
-            android:singleLine="true"
+    <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:paddingTop="2dip"
-            android:numeric="integer" />
+            android:paddingTop="2dip">
+
+        <SeekBar android:id="@+id/backlight"
+                android:layout_width="0dip"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+
+        <EditText android:id="@+id/backlight_input"
+                android:singleLine="true"
+                android:layout_width="80dip"
+                android:layout_height="wrap_content"
+                android:numeric="decimal" />
+
+    </LinearLayout>
 
 </LinearLayout>
diff --git a/res/layout/auto_brightness_preview.xml b/res/layout/auto_brightness_preview.xml
new file mode 100644
index 0000000..d1a5fc1
--- /dev/null
+++ b/res/layout/auto_brightness_preview.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The CyanogenMod Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:padding="4dip">
+
+    <com.android.settings.cyanogenmod.CubicSplinePreviewView
+            android:id="@+id/brightness_preview"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            settings:backgroundColor="@color/auto_brightness_preview_background"
+            settings:foregroundColor="@color/auto_brightness_preview_foreground"
+            settings:gridColor="@color/auto_brightness_preview_grid"
+            settings:markerColor="@color/auto_brightness_preview_markers"
+            settings:textSize="@dimen/auto_brightness_preview_text_size"
+            settings:strokeWidth="@dimen/auto_brightness_preview_stroke_width"
+            settings:markerSize="@dimen/auto_brightness_preview_marker_size" />
+
+</LinearLayout>
diff --git a/res/layout/dialog_auto_brightness_levels.xml b/res/layout/dialog_auto_brightness_levels.xml
index a3f0afd..9e973e8 100644
--- a/res/layout/dialog_auto_brightness_levels.xml
+++ b/res/layout/dialog_auto_brightness_levels.xml
@@ -18,25 +18,47 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
-    <TextView
-        android:id="@+id/light_sensor_value"
+    <LinearLayout
+        android:id="@+id/top_container"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentTop="true"
-        android:padding="8dip" />
+        android:orientation="vertical"
+        android:divider="?android:attr/dividerHorizontal"
+        android:showDividers="end"
+        android:dividerPadding="0dip">
 
-    <TextView
-        android:id="@+id/current_brightness"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/light_sensor_value"
-        android:padding="8dip" />
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layoutDirection="locale">
+
+            <TextView
+                android:id="@+id/light_sensor_value"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:layout_gravity="center_vertical"
+                android:padding="8dip" />
+
+            <ImageButton
+                android:id="@+id/more"
+                android:layout_width="@dimen/auto_brightness_dialog_more_button_size"
+                android:layout_height="@dimen/auto_brightness_dialog_more_button_size"
+                android:src="@*android:drawable/ic_menu_moreoverflow_holo_dark"
+                android:background="?android:attr/actionBarItemBackground"
+                android:contentDescription="@string/wifi_menu_more_options" />
+
+        </LinearLayout>
+
+    </LinearLayout>
 
     <ListView
         android:id="@android:id/list"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_below="@id/light_sensor_value"
+        android:layout_below="@id/top_container"
         android:layout_alignParentBottom="true" />
 
 </RelativeLayout>