Merge "Render to measured size when using expand mode" into lmp-mr1-dev

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/RenderSessionImpl.java

@@ -523,6 +523,11 @@ public class RenderSessionImpl extends RenderAction<SessionParams> {
                         if (neededWidth > measuredWidth) {
                             mMeasuredScreenWidth += neededWidth - measuredWidth;
                         }
+                        if (mMeasuredScreenWidth < measuredWidth) {
+                            // If the screen width is less than the exact measured width,
+                            // expand to match.
+                            mMeasuredScreenWidth = measuredWidth;
+                        }
                     }
 
                     if (renderingMode.isVertExpand()) {
@@ -531,6 +536,11 @@ public class RenderSessionImpl extends RenderAction<SessionParams> {
                         if (neededHeight > measuredHeight) {
                             mMeasuredScreenHeight += neededHeight - measuredHeight;
                         }
+                        if (mMeasuredScreenHeight < measuredHeight) {
+                            // If the screen height is less than the exact measured height,
+                            // expand to match.
+                            mMeasuredScreenHeight = measuredHeight;
+                        }
                     }
                 }
             }

tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/layout/expand_horz_layout.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:padding="16dp"
+              android:orientation="horizontal"
+              android:background="#AAAAAA"
+              android:layout_width="wrap_content"
+              android:layout_height="wrap_content">
+
+    <include layout="@layout/expand_layout"
+             android:layout_height="wrap_content"
+             android:layout_width="wrap_content" />
+
+</LinearLayout>
+

tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/layout/expand_layout.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<merge xmlns:android="http://schemas.android.com/apk/res/android">
+    <TextView
+        android:background="#FF0000"
+        android:textSize="200sp"
+        android:layout_width="200dp"
+        android:layout_height="200dp" />
+    <TextView
+        android:background="#00FF00"
+        android:textSize="200sp"
+        android:layout_width="200dp"
+        android:layout_height="200dp" />
+    <TextView
+        android:background="#0000FF"
+        android:textSize="200sp"
+        android:layout_width="200dp"
+        android:layout_height="200dp" />
+    <TextView
+        android:background="#FF00FF"
+        android:textSize="200sp"
+        android:layout_width="200dp"
+        android:layout_height="200dp" />
+    <TextView
+        android:background="#00FFFF"
+        android:textSize="200sp"
+        android:layout_width="200dp"
+        android:layout_height="200dp" />
+</merge>

tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/layout/expand_vert_layout.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:padding="16dp"
+              android:orientation="vertical"
+              android:background="#AAAAAA"
+              android:layout_width="wrap_content"
+              android:layout_height="wrap_content">
+
+    <include layout="@layout/expand_layout"
+             android:layout_height="wrap_content"
+             android:layout_width="wrap_content" />
+
+</LinearLayout>
+

tools/layoutlib/bridge/tests/src/com/android/layoutlib/bridge/intensive/Main.java

@@ -32,6 +32,8 @@ import com.android.layoutlib.bridge.Bridge;
 import com.android.layoutlib.bridge.intensive.setup.ConfigGenerator;
 import com.android.layoutlib.bridge.intensive.setup.LayoutLibTestCallback;
 import com.android.layoutlib.bridge.intensive.setup.LayoutPullParser;
+import com.android.resources.Density;
+import com.android.resources.Navigation;
 import com.android.utils.ILogger;
 
 import org.junit.Before;
@@ -288,20 +290,50 @@ public class Main {
         renderAndVerify("allwidgets.xml", "allwidgets.png");
     }
 
+    /** Test expand_layout.xml */
+    @Test
+    public void testExpand() throws ClassNotFoundException {
+        // Create the layout pull parser.
+        LayoutPullParser parser = new LayoutPullParser(APP_TEST_RES + "/layout/" +
+                "expand_vert_layout.xml");
+        // Create LayoutLibCallback.
+        LayoutLibTestCallback layoutLibCallback = new LayoutLibTestCallback(getLogger());
+        layoutLibCallback.initResources();
+
+        ConfigGenerator customConfigGenerator = new ConfigGenerator()
+                .setScreenWidth(300)
+                .setScreenHeight(20)
+                .setDensity(Density.XHIGH)
+                .setNavigation(Navigation.NONAV);
+
+        SessionParams params = getSessionParams(parser, customConfigGenerator,
+                layoutLibCallback, "Theme.Material.NoActionBar.Fullscreen", RenderingMode.V_SCROLL,
+                22);
+
+        renderAndVerify(params, "expand_vert_layout.png");
+
+        customConfigGenerator = new ConfigGenerator()
+                .setScreenWidth(20)
+                .setScreenHeight(300)
+                .setDensity(Density.XHIGH)
+                .setNavigation(Navigation.NONAV);
+        parser = new LayoutPullParser(APP_TEST_RES + "/layout/" +
+                "expand_horz_layout.xml");
+        params = getSessionParams(parser, customConfigGenerator,
+                layoutLibCallback, "Theme.Material.NoActionBar.Fullscreen", RenderingMode
+                        .H_SCROLL, 22);
+
+        renderAndVerify(params, "expand_horz_layout.png");
+    }
+
     /**
      * Create a new rendering session and test that rendering given layout on nexus 5
      * doesn't throw any exceptions and matches the provided image.
      */
-    private void renderAndVerify(String layoutFileName, String goldenFileName)
+    private void renderAndVerify(SessionParams params, String goldenFileName)
             throws ClassNotFoundException {
-        // Create the layout pull parser.
-        LayoutPullParser parser = new LayoutPullParser(APP_TEST_RES + "/layout/" + layoutFileName);
-        // Create LayoutLibCallback.
-        LayoutLibTestCallback layoutLibCallback = new LayoutLibTestCallback(getLogger());
-        layoutLibCallback.initResources();
         // TODO: Set up action bar handler properly to test menu rendering.
         // Create session params.
-        SessionParams params = getSessionParams(parser, ConfigGenerator.NEXUS_5, layoutLibCallback);
         RenderSession session = mBridge.createSession(params);
         if (!session.getResult().isSuccess()) {
             getLogger().error(session.getResult().getException(),
@@ -321,26 +353,45 @@ public class Main {
         }
     }
 
+    /**
+     * Create a new rendering session and test that rendering given layout on nexus 5
+     * doesn't throw any exceptions and matches the provided image.
+     */
+    private void renderAndVerify(String layoutFileName, String goldenFileName)
+            throws ClassNotFoundException {
+        // Create the layout pull parser.
+        LayoutPullParser parser = new LayoutPullParser(APP_TEST_RES + "/layout/" + layoutFileName);
+        // Create LayoutLibCallback.
+        LayoutLibTestCallback layoutLibCallback = new LayoutLibTestCallback(getLogger());
+        layoutLibCallback.initResources();
+        // TODO: Set up action bar handler properly to test menu rendering.
+        // Create session params.
+        SessionParams params = getSessionParams(parser, ConfigGenerator.NEXUS_5,
+                layoutLibCallback, "Theme.Material.Light.DarkActionBar", RenderingMode.NORMAL, 22);
+        renderAndVerify(params, goldenFileName);
+    }
+
     /**
      * Uses Theme.Material and Target sdk version as 22.
      */
     private SessionParams getSessionParams(LayoutPullParser layoutParser,
-            ConfigGenerator configGenerator, LayoutLibTestCallback layoutLibCallback) {
+            ConfigGenerator configGenerator, LayoutLibTestCallback layoutLibCallback,
+            String themeName, RenderingMode renderingMode, int targetSdk) {
         FolderConfiguration config = configGenerator.getFolderConfig();
         ResourceResolver resourceResolver =
                 ResourceResolver.create(mProjectResources.getConfiguredResources(config),
                         mFrameworkRepo.getConfiguredResources(config),
-                        "Theme.Material.Light.DarkActionBar", false);
+                        themeName, false);
 
         return new SessionParams(
                 layoutParser,
-                RenderingMode.NORMAL,
+                renderingMode,
                 null /*used for caching*/,
                 configGenerator.getHardwareConfig(),
                 resourceResolver,
                 layoutLibCallback,
                 0,
-                22, // TODO: Make it more configurable to run tests for various versions.
+                targetSdk,
                 getLayoutLog());
     }