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authorElliott Hughes <enh@google.com>2016-03-23 05:18:58 +0100
committerElliott Hughes <enh@google.com>2016-03-26 16:42:49 +0100
commit3d0153a807042dd1bdb7e9fd81d16429a205d9ce (patch)
treedf99c71a9f3a6717e148e429f8af1bd0e7ba6e2e /tools/recovery_l10n/src
parentMerge "Fix: full ota package larger than 2GB fails to upgrade" (diff)
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Diffstat (limited to 'tools/recovery_l10n/src')
-rw-r--r--tools/recovery_l10n/src/com/android/recovery_l10n/Main.java319
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diff --git a/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java b/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java
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+++ b/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java
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+/*
+ * Copyright (C) 2012 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 com.android.recovery_l10n;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.AssetManager;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Spinner;
+import android.widget.ArrayAdapter;
+import android.widget.AdapterView;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Locale;
+
+/**
+ * This activity assists in generating the specially-formatted bitmaps
+ * of text needed for recovery's localized text display. Each image
+ * contains all the translations of a single string; above each
+ * translation is a "header row" that encodes that subimage's width,
+ * height, and locale using pixel values.
+ *
+ * To use this app to generate new translations:
+ *
+ * - Update the string resources in res/values-*
+ *
+ * - Build and run the app. Select the string you want to
+ * translate, and press the "Go" button.
+ *
+ * - Wait for it to finish cycling through all the strings, then
+ * pull /data/data/com.android.recovery_l10n/files/text-out.png
+ * from the device.
+ *
+ * - "pngcrush -c 0 text-out.png output.png"
+ *
+ * - Put output.png in bootable/recovery/res/images/ (renamed
+ * appropriately).
+ *
+ * Recovery expects 8-bit 1-channel images (white text on black
+ * background). pngcrush -c 0 will convert the output of this program
+ * to such an image. If you use any other image handling tools,
+ * remember that they must be lossless to preserve the exact values of
+ * pixels in the header rows; don't convert them to jpeg or anything.
+ */
+
+public class Main extends Activity {
+ private static final String TAG = "RecoveryL10N";
+
+ HashMap<Locale, Bitmap> savedBitmaps;
+ TextView mText;
+ int mStringId = R.string.recovery_installing;
+
+ public class TextCapture implements Runnable {
+ private Locale nextLocale;
+ private Locale thisLocale;
+ private Runnable next;
+
+ TextCapture(Locale thisLocale, Locale nextLocale, Runnable next) {
+ this.nextLocale = nextLocale;
+ this.thisLocale = thisLocale;
+ this.next = next;
+ }
+
+ public void run() {
+ Bitmap b = mText.getDrawingCache();
+ savedBitmaps.put(thisLocale, b.copy(Bitmap.Config.ARGB_8888, false));
+
+ if (nextLocale != null) {
+ switchTo(nextLocale);
+ }
+
+ if (next != null) {
+ mText.postDelayed(next, 200);
+ }
+ }
+ }
+
+ private void switchTo(Locale locale) {
+ Resources standardResources = getResources();
+ AssetManager assets = standardResources.getAssets();
+ DisplayMetrics metrics = standardResources.getDisplayMetrics();
+ Configuration config = new Configuration(standardResources.getConfiguration());
+ config.locale = locale;
+ Resources defaultResources = new Resources(assets, metrics, config);
+
+ mText.setText(mStringId);
+
+ mText.setDrawingCacheEnabled(false);
+ mText.setDrawingCacheEnabled(true);
+ mText.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstance) {
+ super.onCreate(savedInstance);
+ setContentView(R.layout.main);
+
+ savedBitmaps = new HashMap<Locale, Bitmap>();
+
+ Spinner spinner = (Spinner) findViewById(R.id.which);
+ ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
+ this, R.array.string_options, android.R.layout.simple_spinner_item);
+ adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+ spinner.setAdapter(adapter);
+ spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+ @Override
+ public void onItemSelected(AdapterView parent, View view,
+ int pos, long id) {
+ switch (pos) {
+ case 0: mStringId = R.string.recovery_installing; break;
+ case 1: mStringId = R.string.recovery_erasing; break;
+ case 2: mStringId = R.string.recovery_no_command; break;
+ case 3: mStringId = R.string.recovery_error; break;
+ }
+ }
+ @Override public void onNothingSelected(AdapterView parent) { }
+ });
+
+ mText = (TextView) findViewById(R.id.text);
+
+ String[] localeNames = getAssets().getLocales();
+ Arrays.sort(localeNames);
+ ArrayList<Locale> locales = new ArrayList<Locale>();
+ for (String ln : localeNames) {
+ int u = ln.indexOf('_');
+ if (u >= 0) {
+ Log.i(TAG, "locale = " + ln);
+ locales.add(new Locale(ln.substring(0, u), ln.substring(u+1)));
+ }
+ }
+
+ final Runnable seq = buildSequence(locales.toArray(new Locale[0]));
+
+ Button b = (Button) findViewById(R.id.go);
+ b.setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View ignore) {
+ mText.post(seq);
+ }
+ });
+ }
+
+ private Runnable buildSequence(final Locale[] locales) {
+ Runnable head = new Runnable() { public void run() { mergeBitmaps(locales); } };
+ Locale prev = null;
+ for (Locale loc : locales) {
+ head = new TextCapture(loc, prev, head);
+ prev = loc;
+ }
+ final Runnable fhead = head;
+ final Locale floc = prev;
+ return new Runnable() { public void run() { startSequence(fhead, floc); } };
+ }
+
+ private void startSequence(Runnable firstRun, Locale firstLocale) {
+ savedBitmaps.clear();
+ switchTo(firstLocale);
+ mText.postDelayed(firstRun, 200);
+ }
+
+ private void saveBitmap(Bitmap b, String filename) {
+ try {
+ FileOutputStream fos = openFileOutput(filename, 0);
+ b.compress(Bitmap.CompressFormat.PNG, 100, fos);
+ fos.close();
+ } catch (IOException e) {
+ Log.i(TAG, "failed to write PNG", e);
+ }
+ }
+
+ private int colorFor(byte b) {
+ return 0xff000000 | (b<<16) | (b<<8) | b;
+ }
+
+ private int colorFor(int b) {
+ return 0xff000000 | (b<<16) | (b<<8) | b;
+ }
+
+ private void mergeBitmaps(final Locale[] locales) {
+ HashMap<String, Integer> countByLanguage = new HashMap<String, Integer>();
+
+ int height = 2;
+ int width = 10;
+ int maxHeight = 0;
+ for (Locale loc : locales) {
+ Bitmap b = savedBitmaps.get(loc);
+ int h = b.getHeight();
+ int w = b.getWidth();
+ height += h+1;
+ if (h > maxHeight) maxHeight = h;
+ if (w > width) width = w;
+
+ String lang = loc.getLanguage();
+ if (countByLanguage.containsKey(lang)) {
+ countByLanguage.put(lang, countByLanguage.get(lang)+1);
+ } else {
+ countByLanguage.put(lang, 1);
+ }
+ }
+
+ Log.i(TAG, "output bitmap is " + width + " x " + height);
+ Bitmap out = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+ out.eraseColor(0xff000000);
+ int[] pixels = new int[maxHeight * width];
+
+ int p = 0;
+ for (Locale loc : locales) {
+ Bitmap bm = savedBitmaps.get(loc);
+ int h = bm.getHeight();
+ int w = bm.getWidth();
+
+ bm.getPixels(pixels, 0, w, 0, 0, w, h);
+
+ // Find the rightmost and leftmost columns with any
+ // nonblack pixels; we'll copy just that region to the
+ // output image.
+
+ int right = w;
+ while (right > 1) {
+ boolean all_black = true;
+ for (int j = 0; j < h; ++j) {
+ if (pixels[j*w+right-1] != 0xff000000) {
+ all_black = false;
+ break;
+ }
+ }
+ if (all_black) {
+ --right;
+ } else {
+ break;
+ }
+ }
+
+ int left = 0;
+ while (left < right-1) {
+ boolean all_black = true;
+ for (int j = 0; j < h; ++j) {
+ if (pixels[j*w+left] != 0xff000000) {
+ all_black = false;
+ break;
+ }
+ }
+ if (all_black) {
+ ++left;
+ } else {
+ break;
+ }
+ }
+
+ // Make the last country variant for a given language be
+ // the catch-all for that language (because recovery will
+ // take the first one that matches).
+ String lang = loc.getLanguage();
+ if (countByLanguage.get(lang) > 1) {
+ countByLanguage.put(lang, countByLanguage.get(lang)-1);
+ lang = loc.toString();
+ }
+ int tw = right - left;
+ Log.i(TAG, "encoding \"" + loc + "\" as \"" + lang + "\": " + tw + " x " + h);
+ byte[] langBytes = lang.getBytes();
+ out.setPixel(0, p, colorFor(tw & 0xff));
+ out.setPixel(1, p, colorFor(tw >>> 8));
+ out.setPixel(2, p, colorFor(h & 0xff));
+ out.setPixel(3, p, colorFor(h >>> 8));
+ out.setPixel(4, p, colorFor(langBytes.length));
+ int x = 5;
+ for (byte b : langBytes) {
+ out.setPixel(x, p, colorFor(b));
+ x++;
+ }
+ out.setPixel(x, p, colorFor(0));
+
+ p++;
+
+ out.setPixels(pixels, left, w, 0, p, tw, h);
+ p += h;
+ }
+
+ // if no languages match, suppress text display by using a
+ // single black pixel as the image.
+ out.setPixel(0, p, colorFor(1));
+ out.setPixel(1, p, colorFor(0));
+ out.setPixel(2, p, colorFor(1));
+ out.setPixel(3, p, colorFor(0));
+ out.setPixel(4, p, colorFor(0));
+ p++;
+
+ saveBitmap(out, "text-out.png");
+ Log.i(TAG, "wrote text-out.png");
+ }
+}