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refactor source tree organization, switch to meson
This commit is contained in:
Mis012
492
src/api-impl/android/content/res/StringBlock.java
Normal file
492
src/api-impl/android/content/res/StringBlock.java
Normal file
@@ -0,0 +1,492 @@
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/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.content.res;
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//import android.graphics.Color;
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//import android.text.*;
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//import android.text.style.*;
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import android.util.Log;
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import android.util.SparseArray;
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//import android.graphics.Paint;
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//import android.graphics.Rect;
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//import android.graphics.Typeface;
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import java.util.Arrays;
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/**
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* Conveniences for retrieving data out of a compiled string resource.
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*
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* {@hide}
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*/
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final class StringBlock {
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private static final String TAG = "AssetManager";
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private static final boolean localLOGV = false;
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private final int mNative;
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private final boolean mUseSparse;
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private final boolean mOwnsNative;
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private CharSequence[] mStrings;
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private SparseArray<CharSequence> mSparseStrings;
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// StyleIDs mStyleIDs = null;
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public StringBlock(byte[] data, boolean useSparse) {
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mNative = nativeCreate(data, 0, data.length);
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mUseSparse = useSparse;
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mOwnsNative = true;
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if (localLOGV) Log.v(TAG, "Created string block " + this
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+ ": " + nativeGetSize(mNative));
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}
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public StringBlock(byte[] data, int offset, int size, boolean useSparse) {
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mNative = nativeCreate(data, offset, size);
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mUseSparse = useSparse;
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mOwnsNative = true;
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if (localLOGV) Log.v(TAG, "Created string block " + this
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+ ": " + nativeGetSize(mNative));
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}
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public CharSequence get(int idx) {/*
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synchronized (this) {
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if (mStrings != null) {
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CharSequence res = mStrings[idx];
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if (res != null) {
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return res;
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}
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} else if (mSparseStrings != null) {
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CharSequence res = mSparseStrings.get(idx);
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if (res != null) {
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return res;
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}
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} else {
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final int num = nativeGetSize(mNative);
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if (mUseSparse && num > 250) {
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mSparseStrings = new SparseArray<CharSequence>();
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} else {
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mStrings = new CharSequence[num];
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}
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}
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String str = nativeGetString(mNative, idx);
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CharSequence res = str;
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int[] style = nativeGetStyle(mNative, idx);
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if (localLOGV) Log.v(TAG, "Got string: " + str);
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if (localLOGV) Log.v(TAG, "Got styles: " + Arrays.toString(style));
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if (style != null) {
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if (mStyleIDs == null) {
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mStyleIDs = new StyleIDs();
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}
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// the style array is a flat array of <type, start, end> hence
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// the magic constant 3.
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for (int styleIndex = 0; styleIndex < style.length; styleIndex += 3) {
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int styleId = style[styleIndex];
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if (styleId == mStyleIDs.boldId || styleId == mStyleIDs.italicId
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|| styleId == mStyleIDs.underlineId || styleId == mStyleIDs.ttId
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|| styleId == mStyleIDs.bigId || styleId == mStyleIDs.smallId
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|| styleId == mStyleIDs.subId || styleId == mStyleIDs.supId
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|| styleId == mStyleIDs.strikeId || styleId == mStyleIDs.listItemId
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|| styleId == mStyleIDs.marqueeId) {
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// id already found skip to next style
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continue;
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}
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String styleTag = nativeGetString(mNative, styleId);
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if (styleTag.equals("b")) {
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mStyleIDs.boldId = styleId;
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} else if (styleTag.equals("i")) {
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mStyleIDs.italicId = styleId;
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} else if (styleTag.equals("u")) {
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mStyleIDs.underlineId = styleId;
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} else if (styleTag.equals("tt")) {
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mStyleIDs.ttId = styleId;
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} else if (styleTag.equals("big")) {
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mStyleIDs.bigId = styleId;
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} else if (styleTag.equals("small")) {
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mStyleIDs.smallId = styleId;
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} else if (styleTag.equals("sup")) {
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mStyleIDs.supId = styleId;
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} else if (styleTag.equals("sub")) {
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mStyleIDs.subId = styleId;
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} else if (styleTag.equals("strike")) {
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mStyleIDs.strikeId = styleId;
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} else if (styleTag.equals("li")) {
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mStyleIDs.listItemId = styleId;
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} else if (styleTag.equals("marquee")) {
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mStyleIDs.marqueeId = styleId;
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}
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}
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res = applyStyles(str, style, mStyleIDs);
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}
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if (mStrings != null) mStrings[idx] = res;
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else mSparseStrings.put(idx, res);
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return res;
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}
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*/return null;}
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/*
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protected void finalize() throws Throwable {
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try {
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super.finalize();
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} finally {
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if (mOwnsNative) {
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nativeDestroy(mNative);
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}
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}
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}
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static final class StyleIDs {
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private int boldId = -1;
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private int italicId = -1;
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private int underlineId = -1;
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private int ttId = -1;
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private int bigId = -1;
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private int smallId = -1;
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private int subId = -1;
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private int supId = -1;
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private int strikeId = -1;
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private int listItemId = -1;
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private int marqueeId = -1;
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}
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private CharSequence applyStyles(String str, int[] style, StyleIDs ids) {
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if (style.length == 0)
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return str;
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SpannableString buffer = new SpannableString(str);
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int i=0;
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while (i < style.length) {
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int type = style[i];
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if (localLOGV) Log.v(TAG, "Applying style span id=" + type
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+ ", start=" + style[i+1] + ", end=" + style[i+2]);
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if (type == ids.boldId) {
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buffer.setSpan(new StyleSpan(Typeface.BOLD),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.italicId) {
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buffer.setSpan(new StyleSpan(Typeface.ITALIC),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.underlineId) {
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buffer.setSpan(new UnderlineSpan(),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.ttId) {
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buffer.setSpan(new TypefaceSpan("monospace"),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.bigId) {
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buffer.setSpan(new RelativeSizeSpan(1.25f),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.smallId) {
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buffer.setSpan(new RelativeSizeSpan(0.8f),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.subId) {
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buffer.setSpan(new SubscriptSpan(),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.supId) {
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buffer.setSpan(new SuperscriptSpan(),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.strikeId) {
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buffer.setSpan(new StrikethroughSpan(),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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} else if (type == ids.listItemId) {
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addParagraphSpan(buffer, new BulletSpan(10),
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style[i+1], style[i+2]+1);
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} else if (type == ids.marqueeId) {
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buffer.setSpan(TextUtils.TruncateAt.MARQUEE,
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style[i+1], style[i+2]+1,
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Spannable.SPAN_INCLUSIVE_INCLUSIVE);
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} else {
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String tag = nativeGetString(mNative, type);
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if (tag.startsWith("font;")) {
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String sub;
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sub = subtag(tag, ";height=");
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if (sub != null) {
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int size = Integer.parseInt(sub);
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addParagraphSpan(buffer, new Height(size),
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style[i+1], style[i+2]+1);
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}
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sub = subtag(tag, ";size=");
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if (sub != null) {
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int size = Integer.parseInt(sub);
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buffer.setSpan(new AbsoluteSizeSpan(size, true),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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sub = subtag(tag, ";fgcolor=");
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if (sub != null) {
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buffer.setSpan(getColor(sub, true),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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sub = subtag(tag, ";color=");
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if (sub != null) {
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buffer.setSpan(getColor(sub, true),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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sub = subtag(tag, ";bgcolor=");
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if (sub != null) {
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buffer.setSpan(getColor(sub, false),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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sub = subtag(tag, ";face=");
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if (sub != null) {
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buffer.setSpan(new TypefaceSpan(sub),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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} else if (tag.startsWith("a;")) {
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String sub;
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sub = subtag(tag, ";href=");
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if (sub != null) {
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buffer.setSpan(new URLSpan(sub),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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} else if (tag.startsWith("annotation;")) {
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int len = tag.length();
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int next;
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for (int t = tag.indexOf(';'); t < len; t = next) {
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int eq = tag.indexOf('=', t);
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if (eq < 0) {
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break;
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}
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next = tag.indexOf(';', eq);
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if (next < 0) {
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next = len;
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}
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String key = tag.substring(t + 1, eq);
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String value = tag.substring(eq + 1, next);
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buffer.setSpan(new Annotation(key, value),
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style[i+1], style[i+2]+1,
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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}
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}
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i += 3;
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}
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return new SpannedString(buffer);
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}
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/**
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* Returns a span for the specified color string representation.
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* If the specified string does not represent a color (null, empty, etc.)
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* the color black is returned instead.
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*
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* @param color The color as a string. Can be a resource reference,
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* HTML hexadecimal, octal or a name
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* @param foreground True if the color will be used as the foreground color,
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* false otherwise
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*
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* @return A CharacterStyle
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||||
*
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* @see Color#getHtmlColor(String)
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* /
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private static CharacterStyle getColor(String color, boolean foreground) {
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int c = 0xff000000;
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if (!TextUtils.isEmpty(color)) {
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if (color.startsWith("@")) {
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Resources res = Resources.getSystem();
|
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String name = color.substring(1);
|
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int colorRes = res.getIdentifier(name, "color", "android");
|
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if (colorRes != 0) {
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ColorStateList colors = res.getColorStateList(colorRes);
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if (foreground) {
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return new TextAppearanceSpan(null, 0, 0, colors, null);
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} else {
|
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c = colors.getDefaultColor();
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}
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}
|
||||
} else {
|
||||
c = Color.getHtmlColor(color);
|
||||
}
|
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}
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if (foreground) {
|
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return new ForegroundColorSpan(c);
|
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} else {
|
||||
return new BackgroundColorSpan(c);
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}
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}
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/**
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* If a translator has messed up the edges of paragraph-level markup,
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* fix it to actually cover the entire paragraph that it is attached to
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* instead of just whatever range they put it on.
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* /
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private static void addParagraphSpan(Spannable buffer, Object what,
|
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int start, int end) {
|
||||
int len = buffer.length();
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||||
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if (start != 0 && start != len && buffer.charAt(start - 1) != '\n') {
|
||||
for (start--; start > 0; start--) {
|
||||
if (buffer.charAt(start - 1) == '\n') {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (end != 0 && end != len && buffer.charAt(end - 1) != '\n') {
|
||||
for (end++; end < len; end++) {
|
||||
if (buffer.charAt(end - 1) == '\n') {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
buffer.setSpan(what, start, end, Spannable.SPAN_PARAGRAPH);
|
||||
}
|
||||
|
||||
private static String subtag(String full, String attribute) {
|
||||
int start = full.indexOf(attribute);
|
||||
if (start < 0) {
|
||||
return null;
|
||||
}
|
||||
|
||||
start += attribute.length();
|
||||
int end = full.indexOf(';', start);
|
||||
|
||||
if (end < 0) {
|
||||
return full.substring(start);
|
||||
} else {
|
||||
return full.substring(start, end);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Forces the text line to be the specified height, shrinking/stretching
|
||||
* the ascent if possible, or the descent if shrinking the ascent further
|
||||
* will make the text unreadable.
|
||||
* /
|
||||
private static class Height implements LineHeightSpan.WithDensity {
|
||||
private int mSize;
|
||||
private static float sProportion = 0;
|
||||
|
||||
public Height(int size) {
|
||||
mSize = size;
|
||||
}
|
||||
|
||||
public void chooseHeight(CharSequence text, int start, int end,
|
||||
int spanstartv, int v,
|
||||
Paint.FontMetricsInt fm) {
|
||||
// Should not get called, at least not by StaticLayout.
|
||||
chooseHeight(text, start, end, spanstartv, v, fm, null);
|
||||
}
|
||||
|
||||
public void chooseHeight(CharSequence text, int start, int end,
|
||||
int spanstartv, int v,
|
||||
Paint.FontMetricsInt fm, TextPaint paint) {
|
||||
int size = mSize;
|
||||
if (paint != null) {
|
||||
size *= paint.density;
|
||||
}
|
||||
|
||||
if (fm.bottom - fm.top < size) {
|
||||
fm.top = fm.bottom - size;
|
||||
fm.ascent = fm.ascent - size;
|
||||
} else {
|
||||
if (sProportion == 0) {
|
||||
/*
|
||||
* Calculate what fraction of the nominal ascent
|
||||
* the height of a capital letter actually is,
|
||||
* so that we won't reduce the ascent to less than
|
||||
* that unless we absolutely have to.
|
||||
* /
|
||||
|
||||
Paint p = new Paint();
|
||||
p.setTextSize(100);
|
||||
Rect r = new Rect();
|
||||
p.getTextBounds("ABCDEFG", 0, 7, r);
|
||||
|
||||
sProportion = (r.top) / p.ascent();
|
||||
}
|
||||
|
||||
int need = (int) Math.ceil(-fm.top * sProportion);
|
||||
|
||||
if (size - fm.descent >= need) {
|
||||
/*
|
||||
* It is safe to shrink the ascent this much.
|
||||
* /
|
||||
|
||||
fm.top = fm.bottom - size;
|
||||
fm.ascent = fm.descent - size;
|
||||
} else if (size >= need) {
|
||||
/*
|
||||
* We can't show all the descent, but we can at least
|
||||
* show all the ascent.
|
||||
* /
|
||||
|
||||
fm.top = fm.ascent = -need;
|
||||
fm.bottom = fm.descent = fm.top + size;
|
||||
} else {
|
||||
/*
|
||||
* Show as much of the ascent as we can, and no descent.
|
||||
* /
|
||||
|
||||
fm.top = fm.ascent = -size;
|
||||
fm.bottom = fm.descent = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
/**
|
||||
* Create from an existing string block native object. This is
|
||||
* -extremely- dangerous -- only use it if you absolutely know what you
|
||||
* are doing! The given native object must exist for the entire lifetime
|
||||
* of this newly creating StringBlock.
|
||||
*/
|
||||
StringBlock(int obj, boolean useSparse) {
|
||||
mNative = obj;
|
||||
mUseSparse = useSparse;
|
||||
mOwnsNative = false;
|
||||
if (localLOGV) Log.v(TAG, "Created string block " + this
|
||||
+ ": " + nativeGetSize(mNative));
|
||||
}
|
||||
|
||||
private static native int nativeCreate(byte[] data,
|
||||
int offset,
|
||||
int size);
|
||||
private static native int nativeGetSize(int obj);
|
||||
private static native String nativeGetString(int obj, int idx);
|
||||
private static native int[] nativeGetStyle(int obj, int idx);
|
||||
private static native void nativeDestroy(int obj);
|
||||
}
|
||||
Reference in New Issue
Block a user