1 /* 2 * Copyright (C) 2022 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.settings.accessibility; 18 19 import android.content.Context; 20 import android.view.accessibility.CaptioningManager; 21 22 import com.android.settings.R; 23 import com.android.settings.core.BasePreferenceController; 24 25 import com.google.common.primitives.Floats; 26 import com.google.common.primitives.Ints; 27 28 /** Controller that shows the captioning scale and style summary. */ 29 public class CaptioningAppearancePreferenceController extends BasePreferenceController { 30 31 private final CaptioningManager mCaptioningManager; 32 CaptioningAppearancePreferenceController(Context context, String preferenceKey)33 public CaptioningAppearancePreferenceController(Context context, String preferenceKey) { 34 super(context, preferenceKey); 35 mCaptioningManager = context.getSystemService(CaptioningManager.class); 36 } 37 38 @Override getAvailabilityStatus()39 public int getAvailabilityStatus() { 40 return AVAILABLE; 41 } 42 43 @Override getSummary()44 public CharSequence getSummary() { 45 return mContext.getString( 46 com.android.settingslib.R.string.preference_summary_default_combination, 47 geFontScaleSummary(), getPresetSummary()); 48 } 49 getFontScaleValuesArray()50 private float[] getFontScaleValuesArray() { 51 final String[] fontScaleValuesStrArray = mContext.getResources().getStringArray( 52 R.array.captioning_font_size_selector_values); 53 final int length = fontScaleValuesStrArray.length; 54 final float[] fontScaleValuesArray = new float[length]; 55 for (int i = 0; i < length; ++i) { 56 fontScaleValuesArray[i] = Float.parseFloat(fontScaleValuesStrArray[i]); 57 } 58 return fontScaleValuesArray; 59 } 60 geFontScaleSummary()61 private CharSequence geFontScaleSummary() { 62 final float[] fontScaleValuesArray = getFontScaleValuesArray(); 63 final String[] fontScaleSummaries = mContext.getResources().getStringArray( 64 R.array.captioning_font_size_selector_titles); 65 final float fontScale = mCaptioningManager.getFontScale(); 66 final int idx = Floats.indexOf(fontScaleValuesArray, fontScale); 67 return fontScaleSummaries[idx == /* not exist */ -1 ? 0 : idx]; 68 } 69 getPresetSummary()70 private CharSequence getPresetSummary() { 71 final int[] presetValuesArray = mContext.getResources().getIntArray( 72 R.array.captioning_preset_selector_values); 73 final String[] presetSummaries = mContext.getResources().getStringArray( 74 R.array.captioning_preset_selector_titles); 75 final int preset = mCaptioningManager.getRawUserStyle(); 76 final int idx = Ints.indexOf(presetValuesArray, preset); 77 return presetSummaries[idx]; 78 } 79 } 80