Elliott Hughes | cc79490 | 2016-03-22 21:18:58 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.recovery_l10n; |
| 18 | |
| 19 | import android.app.Activity; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | import android.content.res.AssetManager; |
| 23 | import android.content.res.Configuration; |
| 24 | import android.content.res.Resources; |
| 25 | import android.graphics.Bitmap; |
| 26 | import android.os.Bundle; |
| 27 | import android.os.RemoteException; |
| 28 | import android.util.DisplayMetrics; |
| 29 | import android.util.Log; |
| 30 | import android.view.View; |
| 31 | import android.widget.Button; |
| 32 | import android.widget.TextView; |
| 33 | import android.widget.Spinner; |
| 34 | import android.widget.ArrayAdapter; |
| 35 | import android.widget.AdapterView; |
| 36 | |
| 37 | import java.io.FileOutputStream; |
| 38 | import java.io.IOException; |
| 39 | import java.util.ArrayList; |
| 40 | import java.util.Arrays; |
| 41 | import java.util.HashMap; |
| 42 | import java.util.Locale; |
| 43 | |
| 44 | /** |
| 45 | * This activity assists in generating the specially-formatted bitmaps |
| 46 | * of text needed for recovery's localized text display. Each image |
| 47 | * contains all the translations of a single string; above each |
| 48 | * translation is a "header row" that encodes that subimage's width, |
| 49 | * height, and locale using pixel values. |
| 50 | * |
| 51 | * To use this app to generate new translations: |
| 52 | * |
| 53 | * - Update the string resources in res/values-* |
| 54 | * |
| 55 | * - Build and run the app. Select the string you want to |
| 56 | * translate, and press the "Go" button. |
| 57 | * |
| 58 | * - Wait for it to finish cycling through all the strings, then |
| 59 | * pull /data/data/com.android.recovery_l10n/files/text-out.png |
| 60 | * from the device. |
| 61 | * |
| 62 | * - "pngcrush -c 0 text-out.png output.png" |
| 63 | * |
| 64 | * - Put output.png in bootable/recovery/res/images/ (renamed |
| 65 | * appropriately). |
| 66 | * |
| 67 | * Recovery expects 8-bit 1-channel images (white text on black |
| 68 | * background). pngcrush -c 0 will convert the output of this program |
| 69 | * to such an image. If you use any other image handling tools, |
| 70 | * remember that they must be lossless to preserve the exact values of |
| 71 | * pixels in the header rows; don't convert them to jpeg or anything. |
| 72 | */ |
| 73 | |
| 74 | public class Main extends Activity { |
| 75 | private static final String TAG = "RecoveryL10N"; |
| 76 | |
| 77 | HashMap<Locale, Bitmap> savedBitmaps; |
| 78 | TextView mText; |
| 79 | int mStringId = R.string.recovery_installing; |
| 80 | |
| 81 | public class TextCapture implements Runnable { |
| 82 | private Locale nextLocale; |
| 83 | private Locale thisLocale; |
| 84 | private Runnable next; |
| 85 | |
| 86 | TextCapture(Locale thisLocale, Locale nextLocale, Runnable next) { |
| 87 | this.nextLocale = nextLocale; |
| 88 | this.thisLocale = thisLocale; |
| 89 | this.next = next; |
| 90 | } |
| 91 | |
| 92 | public void run() { |
| 93 | Bitmap b = mText.getDrawingCache(); |
| 94 | savedBitmaps.put(thisLocale, b.copy(Bitmap.Config.ARGB_8888, false)); |
| 95 | |
| 96 | if (nextLocale != null) { |
| 97 | switchTo(nextLocale); |
| 98 | } |
| 99 | |
| 100 | if (next != null) { |
| 101 | mText.postDelayed(next, 200); |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | private void switchTo(Locale locale) { |
| 107 | Resources standardResources = getResources(); |
| 108 | AssetManager assets = standardResources.getAssets(); |
| 109 | DisplayMetrics metrics = standardResources.getDisplayMetrics(); |
| 110 | Configuration config = new Configuration(standardResources.getConfiguration()); |
| 111 | config.locale = locale; |
| 112 | Resources defaultResources = new Resources(assets, metrics, config); |
| 113 | |
| 114 | mText.setText(mStringId); |
| 115 | |
| 116 | mText.setDrawingCacheEnabled(false); |
| 117 | mText.setDrawingCacheEnabled(true); |
| 118 | mText.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH); |
| 119 | } |
| 120 | |
| 121 | @Override |
| 122 | public void onCreate(Bundle savedInstance) { |
| 123 | super.onCreate(savedInstance); |
| 124 | setContentView(R.layout.main); |
| 125 | |
| 126 | savedBitmaps = new HashMap<Locale, Bitmap>(); |
| 127 | |
| 128 | Spinner spinner = (Spinner) findViewById(R.id.which); |
| 129 | ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( |
| 130 | this, R.array.string_options, android.R.layout.simple_spinner_item); |
| 131 | adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); |
| 132 | spinner.setAdapter(adapter); |
| 133 | spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { |
| 134 | @Override |
| 135 | public void onItemSelected(AdapterView parent, View view, |
| 136 | int pos, long id) { |
| 137 | switch (pos) { |
| 138 | case 0: mStringId = R.string.recovery_installing; break; |
| 139 | case 1: mStringId = R.string.recovery_erasing; break; |
| 140 | case 2: mStringId = R.string.recovery_no_command; break; |
| 141 | case 3: mStringId = R.string.recovery_error; break; |
| 142 | } |
| 143 | } |
| 144 | @Override public void onNothingSelected(AdapterView parent) { } |
| 145 | }); |
| 146 | |
| 147 | mText = (TextView) findViewById(R.id.text); |
| 148 | |
| 149 | String[] localeNames = getAssets().getLocales(); |
| 150 | Arrays.sort(localeNames); |
| 151 | ArrayList<Locale> locales = new ArrayList<Locale>(); |
| 152 | for (String ln : localeNames) { |
| 153 | int u = ln.indexOf('_'); |
| 154 | if (u >= 0) { |
| 155 | Log.i(TAG, "locale = " + ln); |
| 156 | locales.add(new Locale(ln.substring(0, u), ln.substring(u+1))); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | final Runnable seq = buildSequence(locales.toArray(new Locale[0])); |
| 161 | |
| 162 | Button b = (Button) findViewById(R.id.go); |
| 163 | b.setOnClickListener(new View.OnClickListener() { |
| 164 | @Override |
| 165 | public void onClick(View ignore) { |
| 166 | mText.post(seq); |
| 167 | } |
| 168 | }); |
| 169 | } |
| 170 | |
| 171 | private Runnable buildSequence(final Locale[] locales) { |
| 172 | Runnable head = new Runnable() { public void run() { mergeBitmaps(locales); } }; |
| 173 | Locale prev = null; |
| 174 | for (Locale loc : locales) { |
| 175 | head = new TextCapture(loc, prev, head); |
| 176 | prev = loc; |
| 177 | } |
| 178 | final Runnable fhead = head; |
| 179 | final Locale floc = prev; |
| 180 | return new Runnable() { public void run() { startSequence(fhead, floc); } }; |
| 181 | } |
| 182 | |
| 183 | private void startSequence(Runnable firstRun, Locale firstLocale) { |
| 184 | savedBitmaps.clear(); |
| 185 | switchTo(firstLocale); |
| 186 | mText.postDelayed(firstRun, 200); |
| 187 | } |
| 188 | |
| 189 | private void saveBitmap(Bitmap b, String filename) { |
| 190 | try { |
| 191 | FileOutputStream fos = openFileOutput(filename, 0); |
| 192 | b.compress(Bitmap.CompressFormat.PNG, 100, fos); |
| 193 | fos.close(); |
| 194 | } catch (IOException e) { |
| 195 | Log.i(TAG, "failed to write PNG", e); |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | private int colorFor(byte b) { |
| 200 | return 0xff000000 | (b<<16) | (b<<8) | b; |
| 201 | } |
| 202 | |
| 203 | private int colorFor(int b) { |
| 204 | return 0xff000000 | (b<<16) | (b<<8) | b; |
| 205 | } |
| 206 | |
| 207 | private void mergeBitmaps(final Locale[] locales) { |
| 208 | HashMap<String, Integer> countByLanguage = new HashMap<String, Integer>(); |
| 209 | |
| 210 | int height = 2; |
| 211 | int width = 10; |
| 212 | int maxHeight = 0; |
| 213 | for (Locale loc : locales) { |
| 214 | Bitmap b = savedBitmaps.get(loc); |
| 215 | int h = b.getHeight(); |
| 216 | int w = b.getWidth(); |
| 217 | height += h+1; |
| 218 | if (h > maxHeight) maxHeight = h; |
| 219 | if (w > width) width = w; |
| 220 | |
| 221 | String lang = loc.getLanguage(); |
| 222 | if (countByLanguage.containsKey(lang)) { |
| 223 | countByLanguage.put(lang, countByLanguage.get(lang)+1); |
| 224 | } else { |
| 225 | countByLanguage.put(lang, 1); |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | Log.i(TAG, "output bitmap is " + width + " x " + height); |
| 230 | Bitmap out = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); |
| 231 | out.eraseColor(0xff000000); |
| 232 | int[] pixels = new int[maxHeight * width]; |
| 233 | |
| 234 | int p = 0; |
| 235 | for (Locale loc : locales) { |
| 236 | Bitmap bm = savedBitmaps.get(loc); |
| 237 | int h = bm.getHeight(); |
| 238 | int w = bm.getWidth(); |
| 239 | |
| 240 | bm.getPixels(pixels, 0, w, 0, 0, w, h); |
| 241 | |
| 242 | // Find the rightmost and leftmost columns with any |
| 243 | // nonblack pixels; we'll copy just that region to the |
| 244 | // output image. |
| 245 | |
| 246 | int right = w; |
| 247 | while (right > 1) { |
| 248 | boolean all_black = true; |
| 249 | for (int j = 0; j < h; ++j) { |
| 250 | if (pixels[j*w+right-1] != 0xff000000) { |
| 251 | all_black = false; |
| 252 | break; |
| 253 | } |
| 254 | } |
| 255 | if (all_black) { |
| 256 | --right; |
| 257 | } else { |
| 258 | break; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | int left = 0; |
| 263 | while (left < right-1) { |
| 264 | boolean all_black = true; |
| 265 | for (int j = 0; j < h; ++j) { |
| 266 | if (pixels[j*w+left] != 0xff000000) { |
| 267 | all_black = false; |
| 268 | break; |
| 269 | } |
| 270 | } |
| 271 | if (all_black) { |
| 272 | ++left; |
| 273 | } else { |
| 274 | break; |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | // Make the last country variant for a given language be |
| 279 | // the catch-all for that language (because recovery will |
| 280 | // take the first one that matches). |
| 281 | String lang = loc.getLanguage(); |
| 282 | if (countByLanguage.get(lang) > 1) { |
| 283 | countByLanguage.put(lang, countByLanguage.get(lang)-1); |
| 284 | lang = loc.toString(); |
| 285 | } |
| 286 | int tw = right - left; |
| 287 | Log.i(TAG, "encoding \"" + loc + "\" as \"" + lang + "\": " + tw + " x " + h); |
| 288 | byte[] langBytes = lang.getBytes(); |
| 289 | out.setPixel(0, p, colorFor(tw & 0xff)); |
| 290 | out.setPixel(1, p, colorFor(tw >>> 8)); |
| 291 | out.setPixel(2, p, colorFor(h & 0xff)); |
| 292 | out.setPixel(3, p, colorFor(h >>> 8)); |
| 293 | out.setPixel(4, p, colorFor(langBytes.length)); |
| 294 | int x = 5; |
| 295 | for (byte b : langBytes) { |
| 296 | out.setPixel(x, p, colorFor(b)); |
| 297 | x++; |
| 298 | } |
| 299 | out.setPixel(x, p, colorFor(0)); |
| 300 | |
| 301 | p++; |
| 302 | |
| 303 | out.setPixels(pixels, left, w, 0, p, tw, h); |
| 304 | p += h; |
| 305 | } |
| 306 | |
| 307 | // if no languages match, suppress text display by using a |
| 308 | // single black pixel as the image. |
| 309 | out.setPixel(0, p, colorFor(1)); |
| 310 | out.setPixel(1, p, colorFor(0)); |
| 311 | out.setPixel(2, p, colorFor(1)); |
| 312 | out.setPixel(3, p, colorFor(0)); |
| 313 | out.setPixel(4, p, colorFor(0)); |
| 314 | p++; |
| 315 | |
| 316 | saveBitmap(out, "text-out.png"); |
| 317 | Log.i(TAG, "wrote text-out.png"); |
| 318 | } |
| 319 | } |