ADT/Layoutlib: update API to control how layout expands.

Previous API was a single on/off to let the layouts expand at
render time depending on how much space they needed.

The new API can now control expansion is horizontal and/or
vertical (or not at all)

Basic implementation in the editor, with a manual detect of
"ScrollView" as top element. We should make the ViewRule handle
this somehow.

Change-Id: Idc503bc0d1d3df98fbf01cc84625952ca55a8afb

4 files changed, 50 insertions, 13 deletions

diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/GraphicalEditorPart.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/GraphicalEditorPart.java
index 728c089..f04fcc1 100755
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/GraphicalEditorPart.java
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/GraphicalEditorPart.java
@@ -52,6 +52,7 @@ import com.android.layoutlib.api.LayoutBridge;
 import com.android.layoutlib.api.LayoutScene;
 import com.android.layoutlib.api.SceneParams;
 import com.android.layoutlib.api.SceneResult;
+import com.android.layoutlib.api.SceneParams.RenderingMode;
 import com.android.sdklib.IAndroidTarget;
 import com.android.sdklib.SdkConstants;
 import com.android.sdkuilib.internal.widgets.ResolutionChooserDialog;
@@ -1322,10 +1323,23 @@ public class GraphicalEditorPart extends EditorPart
         UiElementPullParser parser = new UiElementPullParser(model,
                 mUseExplodeMode, explodeNodes, density, xdpi, iProject);
 
+        RenderingMode renderingMode = RenderingMode.NORMAL;
+        if (mClippingButton.getSelection() == false) {
+            renderingMode = RenderingMode.FULL_EXPAND;
+        } else {
+            // FIXME set the rendering mode using ViewRule or something.
+            List<UiElementNode> children = model.getUiChildren();
+            if (children.size() > 0 &&
+                    children.get(0).getDescriptor().getXmlLocalName().equals("ScrollView")) {
+                renderingMode = RenderingMode.V_SCROLL;
+            }
+        }
+
         SceneParams params = new SceneParams(
                 parser,
                 iProject /* projectKey */,
-                width, height, !mClippingButton.getSelection(),
+                width, height,
+                renderingMode,
                 density, xdpi, ydpi,
                 theme, isProjectTheme,
                 configuredProjectRes, frameworkResources, mProjectCallback,
diff --git a/eclipse/plugins/com.android.ide.eclipse.tests/src/com/android/ide/eclipse/tests/functests/layoutRendering/ApiDemosRenderingTest.java b/eclipse/plugins/com.android.ide.eclipse.tests/src/com/android/ide/eclipse/tests/functests/layoutRendering/ApiDemosRenderingTest.java
index b7d648a..024e9e3 100644
--- a/eclipse/plugins/com.android.ide.eclipse.tests/src/com/android/ide/eclipse/tests/functests/layoutRendering/ApiDemosRenderingTest.java
+++ b/eclipse/plugins/com.android.ide.eclipse.tests/src/com/android/ide/eclipse/tests/functests/layoutRendering/ApiDemosRenderingTest.java
@@ -32,14 +32,13 @@ import com.android.ide.eclipse.adt.internal.resources.manager.ProjectResources;
 import com.android.ide.eclipse.adt.internal.resources.manager.ResourceManager;
 import com.android.ide.eclipse.adt.internal.sdk.AndroidTargetData;
 import com.android.ide.eclipse.tests.SdkTestCase;
-import com.android.layoutlib.api.ILayoutResult;
 import com.android.layoutlib.api.IProjectCallback;
 import com.android.layoutlib.api.IResourceValue;
 import com.android.layoutlib.api.IXmlPullParser;
 import com.android.layoutlib.api.LayoutScene;
 import com.android.layoutlib.api.SceneParams;
 import com.android.layoutlib.api.SceneResult;
-import com.android.layoutlib.api.SceneResult.LayoutStatus;
+import com.android.layoutlib.api.SceneParams.RenderingMode;
 import com.android.sdklib.IAndroidTarget;
 import com.android.sdklib.SdkConstants;
 import com.android.sdklib.io.FolderWrapper;
@@ -206,7 +205,7 @@ public class ApiDemosRenderingTest extends SdkTestCase {
                     null /*projectKey*/,
                     320,
                     480,
-                    false, //renderFullSize
+                    RenderingMode.NORMAL,
                     160, //density
                     160, //xdpi
                     160, // ydpi
diff --git a/ide_common/src/com/android/ide/common/layoutlib/LayoutBridgeWrapper.java b/ide_common/src/com/android/ide/common/layoutlib/LayoutBridgeWrapper.java
index f4c99bd..e1b8241 100644
--- a/ide_common/src/com/android/ide/common/layoutlib/LayoutBridgeWrapper.java
+++ b/ide_common/src/com/android/ide/common/layoutlib/LayoutBridgeWrapper.java
@@ -24,6 +24,7 @@ import com.android.layoutlib.api.SceneParams;
 import com.android.layoutlib.api.SceneResult;
 import com.android.layoutlib.api.ViewInfo;
 import com.android.layoutlib.api.ILayoutResult.ILayoutViewInfo;
+import com.android.layoutlib.api.SceneParams.RenderingMode;
 
 import java.lang.reflect.Field;
 import java.util.ArrayList;
@@ -82,7 +83,8 @@ class LayoutBridgeWrapper extends LayoutBridge {
             // Final ILayoutBridge API added support for "render full height"
             result = mBridge.computeLayout(
                     params.getLayoutDescription(), params.getProjectKey(),
-                    params.getScreenWidth(), params.getScreenHeight(), params.getRenderFullSize(),
+                    params.getScreenWidth(), params.getScreenHeight(),
+                    params.getRenderingMode() == RenderingMode.FULL_EXPAND ? true : false,
                     params.getDensity(), params.getXdpi(), params.getYdpi(),
                     params.getThemeName(), params.getIsProjectTheme(),
                     params.getProjectResources(), params.getFrameworkResources(),
diff --git a/layoutlib_api/src/com/android/layoutlib/api/SceneParams.java b/layoutlib_api/src/com/android/layoutlib/api/SceneParams.java
index 6b8f781..36c7a0a 100644
--- a/layoutlib_api/src/com/android/layoutlib/api/SceneParams.java
+++ b/layoutlib_api/src/com/android/layoutlib/api/SceneParams.java
@@ -20,11 +20,34 @@ import java.util.Map;
 
 public class SceneParams {
 
+    public static enum RenderingMode {
+        NORMAL(false, false),
+        V_SCROLL(false, true),
+        H_SCROLL(true, false),
+        FULL_EXPAND(true, true);
+
+        private final boolean mHorizExpand;
+        private final boolean mVertExpand;
+
+        private RenderingMode(boolean horizExpand, boolean vertExpand) {
+            mHorizExpand = horizExpand;
+            mVertExpand = vertExpand;
+        }
+
+        public boolean isHorizExpand() {
+            return mHorizExpand;
+        }
+
+        public boolean isVertExpand() {
+            return mVertExpand;
+        }
+    }
+
     private IXmlPullParser mLayoutDescription;
     private Object mProjectKey;
     private int mScreenWidth;
     private int mScreenHeight;
-    private boolean mRenderFullSize;
+    private RenderingMode mRenderingMode;
     private int mDensity;
     private float mXdpi;
     private float mYdpi;
@@ -44,8 +67,7 @@ public class SceneParams {
      * @param projectKey An Object identifying the project. This is used for the cache mechanism.
      * @param screenWidth the screen width
      * @param screenHeight the screen height
-     * @param renderFullSize if true, the rendering will render the full size needed by the
-     * layout. This size is never smaller than <var>screenWidth</var> x <var>screenHeight</var>.
+     * @param renderingMode The rendering mode.
      * @param density the density factor for the screen.
      * @param xdpi the screen actual dpi in X
      * @param ydpi the screen actual dpi in Y
@@ -65,7 +87,7 @@ public class SceneParams {
      */
     public SceneParams(IXmlPullParser layoutDescription,
             Object projectKey,
-            int screenWidth, int screenHeight, boolean renderFullSize,
+            int screenWidth, int screenHeight, RenderingMode renderingMode,
             int density, float xdpi, float ydpi,
             String themeName, boolean isProjectTheme,
             Map<String, Map<String, IResourceValue>> projectResources,
@@ -75,7 +97,7 @@ public class SceneParams {
         mProjectKey = projectKey;
         mScreenWidth = screenWidth;
         mScreenHeight = screenHeight;
-        mRenderFullSize = renderFullSize;
+        mRenderingMode = renderingMode;
         mDensity = density;
         mXdpi = xdpi;
         mYdpi = ydpi;
@@ -96,7 +118,7 @@ public class SceneParams {
         mProjectKey = params.mProjectKey;
         mScreenWidth = params.mScreenWidth;
         mScreenHeight = params.mScreenHeight;
-        mRenderFullSize = params.mRenderFullSize;
+        mRenderingMode = params.mRenderingMode;
         mDensity = params.mDensity;
         mXdpi = params.mXdpi;
         mYdpi = params.mYdpi;
@@ -131,8 +153,8 @@ public class SceneParams {
         return mScreenHeight;
     }
 
-    public boolean getRenderFullSize() {
-        return mRenderFullSize;
+    public RenderingMode getRenderingMode() {
+        return mRenderingMode;
     }
 
     public int getDensity() {