Add density support to layoutlib so that bitmap are scaled if needed. (499f8819) · Commits · e / os / android_frameworks_base

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -341,6 +341,7 @@ public final class Bridge implements ILayoutBridge {
		try {
		// setup the display Metrics.
		DisplayMetrics metrics = new DisplayMetrics();
		metrics.densityDpi = density;
		metrics.density = density / (float) DisplayMetrics.DENSITY_DEFAULT;
		metrics.scaledDensity = metrics.density;
		metrics.widthPixels = screenWidth;
		@@ -388,7 +389,7 @@ public final class Bridge implements ILayoutBridge {

		// get the background drawable
		if (windowBackground != null) {
		Drawable d = ResourceHelper.getDrawable(windowBackground.getValue(),
		Drawable d = ResourceHelper.getDrawable(windowBackground,
		context, true /* isFramework */);
		root.setBackgroundDrawable(d);
		}

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeResources.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -124,7 +124,7 @@ public final class BridgeResources extends Resources {
		IResourceValue value = getResourceValue(id, mPlatformResourceFlag);

		if (value != null) {
		return ResourceHelper.getDrawable(value.getValue(), mContext, value.isFramework());
		return ResourceHelper.getDrawable(value, mContext, value.isFramework());
		}

		// id was not found or not resolved. Throw a NotFoundException.

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeTypedArray.java

+3 −2

Original line number	Diff line number	Diff line
		@@ -659,8 +659,9 @@ public final class BridgeTypedArray extends TypedArray {
		return null;
		}

		String value = mData[index].getValue();
		if (value == null \|\| BridgeConstants.REFERENCE_NULL.equals(value)) {
		IResourceValue value = mData[index];
		String stringValue = value.getValue();
		if (stringValue == null \|\| BridgeConstants.REFERENCE_NULL.equals(stringValue)) {
		return null;
		}

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/ResourceHelper.java

+71 −42

Original line number	Diff line number	Diff line
		@@ -16,6 +16,9 @@

		package com.android.layoutlib.bridge;

		import com.android.layoutlib.api.IDensityBasedResourceValue;
		import com.android.layoutlib.api.IResourceValue;
		import com.android.layoutlib.api.IDensityBasedResourceValue.Density;
		import com.android.ninepatch.NinePatch;

		import org.kxml2.io.KXmlParser;
		@@ -96,28 +99,30 @@ public final class ResourceHelper {

		/**
		* Returns a drawable from the given value.
		* @param value The value. A path to a 9 patch, a bitmap or a xml based drawable,
		* @param value The value that contains a path to a 9 patch, a bitmap or a xml based drawable,
		* or an hexadecimal color
		* @param context
		* @param isFramework indicates whether the resource is a framework resources.
		* Framework resources are cached, and loaded only once.
		*/
		public static Drawable getDrawable(String value, BridgeContext context, boolean isFramework) {
		public static Drawable getDrawable(IResourceValue value, BridgeContext context, boolean isFramework) {
		Drawable d = null;

		String lowerCaseValue = value.toLowerCase();
		String stringValue = value.getValue();

		String lowerCaseValue = stringValue.toLowerCase();

		if (lowerCaseValue.endsWith(NinePatch.EXTENSION_9PATCH)) {
		File f = new File(value);
		if (f.isFile()) {
		NinePatch ninePatch = Bridge.getCached9Patch(value,
		File file = new File(stringValue);
		if (file.isFile()) {
		NinePatch ninePatch = Bridge.getCached9Patch(stringValue,
		isFramework ? null : context.getProjectKey());

		if (ninePatch == null) {
		try {
		ninePatch = NinePatch.load(new File(value).toURL(), false /* convert */);
		ninePatch = NinePatch.load(file.toURL(), false /* convert */);

		Bridge.setCached9Patch(value, ninePatch,
		Bridge.setCached9Patch(stringValue, ninePatch,
		isFramework ? null : context.getProjectKey());
		} catch (MalformedURLException e) {
		// URL is wrong, we'll return null below
		@@ -134,7 +139,7 @@ public final class ResourceHelper {
		return null;
		} else if (lowerCaseValue.endsWith(".xml")) {
		// create a blockparser for the file
		File f = new File(value);
		File f = new File(stringValue);
		if (f.isFile()) {
		try {
		// let the framework inflate the Drawable from the XML file.
		@@ -157,19 +162,43 @@ public final class ResourceHelper {

		return null;
		} else {
		File bmpFile = new File(value);
		File bmpFile = new File(stringValue);
		if (bmpFile.isFile()) {
		try {
		Bitmap bitmap = Bridge.getCachedBitmap(value,
		Bitmap bitmap = Bridge.getCachedBitmap(stringValue,
		isFramework ? null : context.getProjectKey());

		if (bitmap == null) {
		bitmap = new Bitmap(bmpFile);
		Bridge.setCachedBitmap(value, bitmap,
		try {
		bitmap.setDensity(Density.MEDIUM.getValue());
		} catch (NoClassDefFoundError error) {
		// look like we're running in an older version of ADT that doesn't
		// include the new layoutlib_api. Let's just ignore this, the drawing
		// will just be wrong.
		}
		Bridge.setCachedBitmap(stringValue, bitmap,
		isFramework ? null : context.getProjectKey());
		}

		return new BitmapDrawable(bitmap);
		try {
		if (value instanceof IDensityBasedResourceValue) {
		Density density = ((IDensityBasedResourceValue)value).getDensity();
		if (density != Density.MEDIUM) {
		// create a copy of the bitmap
		bitmap = Bitmap.createBitmap(bitmap);

		// apply the density
		bitmap.setDensity(density.getValue());
		}
		}
		} catch (NoClassDefFoundError error) {
		// look like we're running in an older version of ADT that doesn't include
		// the new layoutlib_api. Let's just ignore this, the drawing will just be
		// wrong.
		}

		return new BitmapDrawable(context.getResources(), bitmap);
		} catch (IOException e) {
		// we'll return null below
		// TODO: log the error.
		@@ -177,7 +206,7 @@ public final class ResourceHelper {
		} else {
		// attempt to get a color from the value
		try {
		int color = getColor(value);
		int color = getColor(stringValue);
		return new ColorDrawable(color);
		} catch (NumberFormatException e) {
		// we'll return null below.