Merge "Support font resource in TextAppearanceSpan" (7d97b913) · Commits · e / os / android_frameworks_base

core/java/android/text/style/TextAppearanceSpan.java

+53 −34

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package android.text.style;
		import android.content.Context;
		import android.content.res.ColorStateList;
		import android.content.res.TypedArray;
		import android.graphics.LeakyTypefaceStorage;
		import android.graphics.Typeface;
		import android.os.Parcel;
		import android.text.ParcelableSpan;
		@@ -30,11 +31,12 @@ import android.text.TextUtils;
		* resource.
		*/
		public class TextAppearanceSpan extends MetricAffectingSpan implements ParcelableSpan {
		private final String mTypeface;
		private final String mFamilyName;
		private final int mStyle;
		private final int mTextSize;
		private final ColorStateList mTextColor;
		private final ColorStateList mTextColorLink;
		private final Typeface mTypeface;

		/**
		* Uses the specified TextAppearance resource to determine the
		@@ -68,30 +70,35 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		TextAppearance_textSize, -1);

		mStyle = a.getInt(com.android.internal.R.styleable.TextAppearance_textStyle, 0);
		mTypeface = a.getFont(com.android.internal.R.styleable.TextAppearance_fontFamily);
		if (mTypeface != null) {
		mFamilyName = null;
		} else {
		String family = a.getString(com.android.internal.R.styleable.TextAppearance_fontFamily);
		if (family != null) {
		mTypeface = family;
		mFamilyName = family;
		} else {
		int tf = a.getInt(com.android.internal.R.styleable.TextAppearance_typeface, 0);

		switch (tf) {
		case 1:
		mTypeface = "sans";
		mFamilyName = "sans";
		break;

		case 2:
		mTypeface = "serif";
		mFamilyName = "serif";
		break;

		case 3:
		mTypeface = "monospace";
		mFamilyName = "monospace";
		break;

		default:
		mTypeface = null;
		mFamilyName = null;
		break;
		}
		}
		}

		a.recycle();

		@@ -112,15 +119,16 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		*/
		public TextAppearanceSpan(String family, int style, int size,
		ColorStateList color, ColorStateList linkColor) {
		mTypeface = family;
		mFamilyName = family;
		mStyle = style;
		mTextSize = size;
		mTextColor = color;
		mTextColorLink = linkColor;
		mTypeface = null;
		}

		public TextAppearanceSpan(Parcel src) {
		mTypeface = src.readString();
		mFamilyName = src.readString();
		mStyle = src.readInt();
		mTextSize = src.readInt();
		if (src.readInt() != 0) {
		@@ -133,6 +141,7 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		} else {
		mTextColorLink = null;
		}
		mTypeface = LeakyTypefaceStorage.readTypefaceFromParcel(src);
		}

		public int getSpanTypeId() {
		@@ -154,7 +163,7 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl

		/** @hide */
		public void writeToParcelInternal(Parcel dest, int flags) {
		dest.writeString(mTypeface);
		dest.writeString(mFamilyName);
		dest.writeInt(mStyle);
		dest.writeInt(mTextSize);
		if (mTextColor != null) {
		@@ -169,6 +178,7 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		} else {
		dest.writeInt(0);
		}
		LeakyTypefaceStorage.writeTypefaceToParcel(mTypeface, dest);
		}

		/**
		@@ -176,7 +186,7 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		* if it does not specify one.
		*/
		public String getFamily() {
		return mTypeface;
		return mFamilyName;
		}

		/**
		@@ -226,25 +236,34 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl

		@Override
		public void updateMeasureState(TextPaint ds) {
		if (mTypeface != null \|\| mStyle != 0) {
		Typeface tf = ds.getTypeface();
		final Typeface styledTypeface;
		int style = 0;

		if (mTypeface != null) {
		style = mStyle;
		styledTypeface = Typeface.create(mTypeface, style);
		} else if (mFamilyName != null \|\| mStyle != 0) {
		Typeface tf = ds.getTypeface();

		if (tf != null) {
		style = tf.getStyle();
		}

		style \|= mStyle;

		if (mTypeface != null) {
		tf = Typeface.create(mTypeface, style);
		if (mFamilyName != null) {
		styledTypeface = Typeface.create(mFamilyName, style);
		} else if (tf == null) {
		tf = Typeface.defaultFromStyle(style);
		styledTypeface = Typeface.defaultFromStyle(style);
		} else {
		styledTypeface = Typeface.create(tf, style);
		}
		} else {
		tf = Typeface.create(tf, style);
		styledTypeface = null;
		}

		int fake = style & ~tf.getStyle();
		if (styledTypeface != null) {
		int fake = style & ~styledTypeface.getStyle();

		if ((fake & Typeface.BOLD) != 0) {
		ds.setFakeBoldText(true);
		@@ -254,7 +273,7 @@ public class TextAppearanceSpan extends MetricAffectingSpan implements Parcelabl
		ds.setTextSkewX(-0.25f);
		}

		ds.setTypeface(tf);
		ds.setTypeface(styledTypeface);
		}

		if (mTextSize > 0) {

graphics/java/android/graphics/LeakyTypefaceStorage.java

0 → 100644

+86 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 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.internal.annotations.GuardedBy;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.os.Parcel;
		import android.os.Process;
		import android.util.ArrayMap;

		import java.util.ArrayList;

		/**
		* This class is used for Parceling Typeface object.
		* Note: Typeface object can not be passed over the process boundary.
		*
		* @hide
		*/
		public class LeakyTypefaceStorage {
		private static final Object sLock = new Object();

		@GuardedBy("sLock")
		private static final ArrayList<Typeface> sStorage = new ArrayList<>();
		@GuardedBy("sLock")
		private static final ArrayMap<Typeface, Integer> sTypefaceMap = new ArrayMap<>();

		/**
		* Write typeface to parcel.
		*
		* You can't transfer Typeface to a different process. {@link readTypefaceFromParcel} will
		* return {@code null} if the {@link readTypefaceFromParcel} is called in a different process.
		*
		* @param typeface A {@link Typeface} to be written.
		* @param parcel A {@link Parcel} object.
		*/
		public static void writeTypefaceToParcel(@Nullable Typeface typeface, @NonNull Parcel parcel) {
		parcel.writeInt(Process.myPid());
		synchronized (sLock) {
		final int id;
		final Integer i = sTypefaceMap.get(typeface);
		if (i != null) {
		id = i.intValue();
		} else {
		id = sStorage.size();
		sStorage.add(typeface);
		sTypefaceMap.put(typeface, id);
		}
		parcel.writeInt(id);
		}
		}

		/**
		* Read typeface from parcel.
		*
		* If the {@link Typeface} was created in another process, this method returns null.
		*
		* @param parcel A {@link Parcel} object
		* @return A {@link Typeface} object.
		*/
		public static @Nullable Typeface readTypefaceFromParcel(@NonNull Parcel parcel) {
		final int pid = parcel.readInt();
		final int typefaceId = parcel.readInt();
		if (pid != Process.myPid()) {
		return null; // The Typeface was created and written in another process.
		}
		synchronized (sLock) {
		return sStorage.get(typefaceId);
		}
		}
		}