Fix nav bar spacing for tablets.

Change-Id: Ieee2c2174a3041a0f967cc75bbe74d8bf882ced7

3 files changed, 99 insertions, 21 deletions

diff --git a/tools/layoutlib/bridge/resources/bars/navigation_bar.xml b/tools/layoutlib/bridge/resources/bars/navigation_bar.xml
index 79920a1..55bd1d2 100644
--- a/tools/layoutlib/bridge/resources/bars/navigation_bar.xml
+++ b/tools/layoutlib/bridge/resources/bars/navigation_bar.xml
@@ -1,8 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source 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.
+  -->
+
 <merge xmlns:android="http://schemas.android.com/apk/res/android">
 	<View
 			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"/>
+			android:layout_height="wrap_content"
+			android:visibility="invisible"/>
 	<ImageView
 			android:layout_height="wrap_content"
 			android:layout_width="wrap_content"
@@ -10,20 +27,23 @@
 	<View
 			android:layout_height="wrap_content"
 			android:layout_width="wrap_content"
-			android:layout_weight="1"/>
+			android:layout_weight="1"
+			android:visibility="invisible"/>
 	<ImageView
 			android:layout_height="wrap_content"
 			android:layout_width="wrap_content"
 			android:scaleType="centerInside"/>
 	<View
-		android:layout_height="wrap_content"
-		android:layout_width="wrap_content"
-		android:layout_weight="1"/>
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:layout_weight="1"
+			android:visibility="invisible"/>
 	<ImageView
 			android:layout_height="wrap_content"
 			android:layout_width="wrap_content"
 			android:scaleType="centerInside"/>
 	<View
 			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"/>
+			android:layout_height="wrap_content"
+			android:visibility="invisible"/>
 </merge>
diff --git a/tools/layoutlib/bridge/resources/bars/navigation_bar600dp.xml b/tools/layoutlib/bridge/resources/bars/navigation_bar600dp.xml
new file mode 100644
index 0000000..e208a0d
--- /dev/null
+++ b/tools/layoutlib/bridge/resources/bars/navigation_bar600dp.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source 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.
+  -->
+
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+	<View
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_weight="1"
+		  	android:visibility="invisible"/>
+	<ImageView
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:scaleType="centerInside"/>
+	<View
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:visibility="invisible"/>
+	<ImageView
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:scaleType="centerInside"/>
+	<View
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:visibility="invisible"/>
+	<ImageView
+			android:layout_height="wrap_content"
+			android:layout_width="wrap_content"
+			android:scaleType="centerInside"/>
+	<View
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_weight="1"
+			android:visibility="invisible"/>
+</merge>
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/NavigationBar.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/NavigationBar.java
index 16f477b..dcf82a3 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/NavigationBar.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/NavigationBar.java
@@ -41,6 +41,9 @@ public class NavigationBar extends CustomBar {
     private static final int WIDTH_DEFAULT = 36;
     private static final int WIDTH_SW360 = 40;
     private static final int WIDTH_SW600 = 48;
+    private static final String LAYOUT_XML = "/bars/navigation_bar.xml";
+    private static final String LAYOUT_600DP_XML = "/bars/navigation_bar600dp.xml";
+
 
     /**
      * Constructor to be used when creating the {@link NavigationBar} as a regular control.
@@ -59,8 +62,8 @@ public class NavigationBar extends CustomBar {
 
     public NavigationBar(BridgeContext context, Density density, int orientation, boolean isRtl,
             boolean rtlEnabled, int simulatedPlatformVersion) throws XmlPullParserException {
-        super(context, orientation, "/bars/navigation_bar.xml", "navigation_bar.xml",
-                simulatedPlatformVersion);
+        super(context, orientation, getShortestWidth(context)>= 600 ? LAYOUT_600DP_XML : LAYOUT_XML,
+                "navigation_bar.xml", simulatedPlatformVersion);
 
         int color = getThemeAttrColor(ATTR_COLOR, true);
         setBackgroundColor(color == 0 ? 0xFF000000 : color);
@@ -87,13 +90,19 @@ public class NavigationBar extends CustomBar {
     }
 
     private void setupNavBar(BridgeContext context, int orientation) {
+        float sw = getShortestWidth(context);
         View leftPadding = getChildAt(0);
         View rightPadding = getChildAt(6);
-        setSize(context, leftPadding, orientation, getSidePadding(context));
-        setSize(context, rightPadding, orientation, getSidePadding(context));
+        setSize(context, leftPadding, orientation, getSidePadding(sw));
+        setSize(context, rightPadding, orientation, getSidePadding(sw));
+        int navButtonWidth = getWidth(sw);
         for (int i = 1; i < 6; i += 2) {
             View navButton = getChildAt(i);
-            setSize(context, navButton, orientation, getWidth(context));
+            setSize(context, navButton, orientation, navButtonWidth);
+        }
+        if (sw >= 600) {
+            setSize(context, getChildAt(2), orientation, 128);
+            setSize(context, getChildAt(4), orientation, 128);
         }
     }
 
@@ -108,11 +117,7 @@ public class NavigationBar extends CustomBar {
         view.setLayoutParams(layoutParams);
     }
 
-    private static int getSidePadding(BridgeContext context) {
-        DisplayMetrics metrics = context.getMetrics();
-        float sw = metrics.widthPixels > metrics.heightPixels
-                ? metrics.heightPixels : metrics.widthPixels;
-        sw /= metrics.density;
+    private static int getSidePadding(float sw) {
         if (sw >= 400) {
             return PADDING_WIDTH_SW400;
         }
@@ -122,11 +127,7 @@ public class NavigationBar extends CustomBar {
         return PADDING_WIDTH_DEFAULT;
     }
 
-    private static int getWidth(BridgeContext context) {
-        DisplayMetrics metrics = context.getMetrics();
-        float sw = metrics.widthPixels > metrics.heightPixels
-                ? metrics.heightPixels : metrics.widthPixels;
-        sw /= metrics.density;
+    private static int getWidth(float sw) {
         if (sw >= 600) {
             return WIDTH_SW600;
         }
@@ -136,6 +137,14 @@ public class NavigationBar extends CustomBar {
         return WIDTH_DEFAULT;
     }
 
+    private static float getShortestWidth(BridgeContext context) {
+        DisplayMetrics metrics = context.getMetrics();
+        float sw = metrics.widthPixels < metrics.heightPixels ?
+                metrics.widthPixels : metrics.heightPixels;
+        sw /= metrics.density;
+        return sw;
+    }
+
     @Override
     protected TextView getStyleableTextView() {
         return null;