Steampunk watchface (mmol support)

Includes delta granularity in the watch preferences.

wear/src/main/java/info/nightscout/androidaps/watchfaces/BaseWatchFace.java

@@ -553,6 +553,7 @@ public  abstract class BaseWatchFace extends WatchFace implements SharedPreferen
 
         if(layoutSet){
             setDataFields();
+            setColor();
         }
         invalidate();
     }

wear/src/main/java/info/nightscout/androidaps/watchfaces/Steampunk.java

@@ -1,6 +1,8 @@
 package info.nightscout.androidaps.watchfaces;
 
 import android.content.Intent;
+import android.graphics.Canvas;
+import android.graphics.Rect;
 import android.support.v4.content.ContextCompat;
 import android.support.wearable.watchface.WatchFaceStyle;
 import android.view.LayoutInflater;
@@ -70,7 +72,7 @@ public class Steampunk extends BaseWatchFace {
         float rotationAngle = 0f;                                           //by default, show ? on the dial (? is at 0 degrees on the dial)
         if (!sSgv.equals("---")) {
             if (sUnits.equals("mmol")) {
-                rotationAngle = Float.valueOf(sSgv) * 18f;
+                rotationAngle = Float.valueOf(sSgv) * 18f;  //convert to mg/dL, which is equivalent to degrees
             } else {
                 rotationAngle = Float.valueOf(sSgv);       //if glucose a value is received, use it to determine the amount of rotation of the dial.
             }
@@ -88,13 +90,42 @@ public class Steampunk extends BaseWatchFace {
         mGlucoseDial.startAnimation(rotate);
         lastEndDegrees = rotationAngle;     //store the final angle as a starting point for the next rotation.
 
-        //rotate delta pointer.
+        //set the delta gauge and rotate the delta pointer
         float deltaIsNegative = 1f;         //by default go clockwise
         if (!sAvgDelta.equals("--")) {      //if a legitimate delta value is received, then...
             if (sAvgDelta.substring(0,1).equals("-")) deltaIsNegative = -1f;  //if the delta is negative, go counter-clockwise
-            deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 1.5f);   //get rid of the sign so it can be converted to float. then, for each 10 in avgDelta we need to move 15 degrees, hence multiply avgDelta by 1.5.
+
+            //ensure the delta gauge is the right units and granularity
+            if (!sUnits.equals("-")) {
+                if (sUnits.equals("mmol")) {
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("1")) {  //low
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mmol_10);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 30f);   //get rid of the sign so it can be converted to float.
+                    }
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("2")) {  //medium
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mmol_05);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 60f);   //get rid of the sign so it can be converted to float.
+                    }
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("3")) {  //high
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mmol_03);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 100f);   //get rid of the sign so it can be converted to float.
+                    }
+                } else {
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("1")) {  //low
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mgdl_20);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 1.5f);   //get rid of the sign so it can be converted to float.
+                    }
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("2")) {  //medium
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mgdl_10);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 3f);   //get rid of the sign so it can be converted to float.
+                    }
+                    if (sharedPrefs.getString("delta_granularity", "2").equals("3")) {  //high
+                        mLinearLayout.setBackgroundResource(R.drawable.steampunk_gauge_mgdl_5);
+                        deltaRotationAngle = (Float.valueOf(sAvgDelta.substring(1)) * 6f);   //get rid of the sign so it can be converted to float.
+                    }
+                }
+            }
             if (deltaRotationAngle > 35) deltaRotationAngle = 35f;
-            if (deltaRotationAngle < -35) deltaRotationAngle = -35f;  //if the needle will go off the chart in either direction, make it stop at the end of the gauge.
             mDeltaGauge.setRotation(deltaRotationAngle * deltaIsNegative);
         }
 

wear/src/main/res/layout/round_steampunk.xml

@@ -245,7 +245,7 @@
                     android:text="-'"
                     android:textAlignment="center"
                     android:textColor="@color/black_86p"
-                    android:textSize="12sp"
+                    android:textSize="11sp"
                     android:textStyle="bold" />
 
             </LinearLayout>
@@ -303,7 +303,7 @@
                     android:text="-'"
                     android:textAlignment="center"
                     android:textColor="@color/black_86p"
-                    android:textSize="12sp"
+                    android:textSize="11sp"
                     android:textStyle="bold" />
 
             </LinearLayout>

wear/src/main/res/values/strings.xml

@@ -20,6 +20,18 @@
         <item>5</item>
     </string-array>
 
+    <string-array name="delta_granularity">
+        <item>Low</item>
+        <item>Medium</item>
+        <item>High</item>
+    </string-array>
+
+    <string-array name="delta_granularity_values">
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+    </string-array>
+
     <string-array name="input_design">
         <item>Default</item>
         <item>Quick righty</item>

wear/src/main/res/xml/preferences.xml

@@ -141,6 +141,14 @@
         android:summary="Input Design"
         android:title="Input Design" />
 
+    <ListPreference
+        android:defaultValue="2"
+        android:entries="@array/delta_granularity"
+        android:entryValues="@array/delta_granularity_values"
+        android:key="delta_granularity"
+        android:summary="Delta Granularity (Steampunk)"
+        android:title="Delta Granularity (Steampunk)" />
+
     <CheckBoxPreference
         android:defaultValue="false"
         android:key="showBigNumbers"