| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| package android.graphics; |
| |
| import com.android.ide.common.rendering.api.LayoutLog; |
| import com.android.layoutlib.bridge.Bridge; |
| import com.android.layoutlib.bridge.impl.DelegateManager; |
| import com.android.layoutlib.bridge.impl.FontLoader; |
| import com.android.tools.layoutlib.annotations.LayoutlibDelegate; |
| |
| import android.content.res.AssetManager; |
| |
| import java.awt.Font; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Delegate implementing the native methods of android.graphics.Typeface |
| * |
| * Through the layoutlib_create tool, the original native methods of Typeface have been replaced |
| * by calls to methods of the same name in this delegate class. |
| * |
| * This class behaves like the original native implementation, but in Java, keeping previously |
| * native data into its own objects and mapping them to int that are sent back and forth between |
| * it and the original Typeface class. |
| * |
| * @see DelegateManager |
| * |
| */ |
| public final class Typeface_Delegate { |
| |
| // ---- delegate manager ---- |
| private static final DelegateManager<Typeface_Delegate> sManager = |
| new DelegateManager<Typeface_Delegate>(); |
| |
| // ---- delegate helper data ---- |
| private static final String DEFAULT_FAMILY = "sans-serif"; |
| private static final int[] STYLE_BUFFER = new int[1]; |
| |
| private static FontLoader sFontLoader; |
| private static final List<Typeface_Delegate> sPostInitDelegate = |
| new ArrayList<Typeface_Delegate>(); |
| |
| // ---- delegate data ---- |
| |
| private final String mFamily; |
| private int mStyle; |
| private List<Font> mFonts; |
| |
| |
| // ---- Public Helper methods ---- |
| |
| public static synchronized void init(FontLoader fontLoader) { |
| sFontLoader = fontLoader; |
| |
| for (Typeface_Delegate delegate : sPostInitDelegate) { |
| delegate.init(); |
| } |
| sPostInitDelegate.clear(); |
| } |
| |
| public static Typeface_Delegate getDelegate(int nativeTypeface) { |
| return sManager.getDelegate(nativeTypeface); |
| } |
| |
| public static List<Font> getFonts(Typeface typeface) { |
| return getFonts(typeface.native_instance); |
| } |
| |
| public static List<Font> getFonts(int native_int) { |
| Typeface_Delegate delegate = sManager.getDelegate(native_int); |
| if (delegate == null) { |
| return null; |
| } |
| |
| return delegate.getFonts(); |
| } |
| |
| public List<Font> getFonts() { |
| return mFonts; |
| } |
| |
| // ---- native methods ---- |
| |
| @LayoutlibDelegate |
| /*package*/ static synchronized int nativeCreate(String familyName, int style) { |
| if (familyName == null) { |
| familyName = DEFAULT_FAMILY; |
| } |
| |
| Typeface_Delegate newDelegate = new Typeface_Delegate(familyName, style); |
| if (sFontLoader != null) { |
| newDelegate.init(); |
| } else { |
| // font loader has not been initialized yet, add the delegate to a list of delegates |
| // to init when the font loader is initialized. |
| // There won't be any rendering before this happens anyway. |
| sPostInitDelegate.add(newDelegate); |
| } |
| |
| return sManager.addNewDelegate(newDelegate); |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static synchronized int nativeCreateFromTypeface(int native_instance, int style) { |
| Typeface_Delegate delegate = sManager.getDelegate(native_instance); |
| if (delegate == null) { |
| return 0; |
| } |
| |
| Typeface_Delegate newDelegate = new Typeface_Delegate(delegate.mFamily, style); |
| if (sFontLoader != null) { |
| newDelegate.init(); |
| } else { |
| // font loader has not been initialized yet, add the delegate to a list of delegates |
| // to init when the font loader is initialized. |
| // There won't be any rendering before this happens anyway. |
| sPostInitDelegate.add(newDelegate); |
| } |
| |
| return sManager.addNewDelegate(newDelegate); |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static synchronized int nativeCreateFromAsset(AssetManager mgr, String path) { |
| Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, |
| "Typeface.createFromAsset() is not supported.", null /*throwable*/, null /*data*/); |
| return 0; |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static synchronized int nativeCreateFromFile(String path) { |
| Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED, |
| "Typeface.createFromFile() is not supported.", null /*throwable*/, null /*data*/); |
| return 0; |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static void nativeUnref(int native_instance) { |
| sManager.removeJavaReferenceFor(native_instance); |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static int nativeGetStyle(int native_instance) { |
| Typeface_Delegate delegate = sManager.getDelegate(native_instance); |
| if (delegate == null) { |
| return 0; |
| } |
| |
| return delegate.mStyle; |
| } |
| |
| @LayoutlibDelegate |
| /*package*/ static void setGammaForText(float blackGamma, float whiteGamma) { |
| // This is for device testing only: pass |
| } |
| |
| // ---- Private delegate/helper methods ---- |
| |
| private Typeface_Delegate(String family, int style) { |
| mFamily = family; |
| mStyle = style; |
| } |
| |
| private void init() { |
| STYLE_BUFFER[0] = mStyle; |
| Font font = sFontLoader.getFont(mFamily, STYLE_BUFFER); |
| if (font != null) { |
| List<Font> list = new ArrayList<Font>(); |
| list.add(font); |
| list.addAll(sFontLoader.getFallBackFonts()); |
| mFonts = Collections.unmodifiableList(list); |
| mStyle = STYLE_BUFFER[0]; |
| } |
| } |
| } |