f3f39dadc9
Usage is removed in Change: I5d8027628dcf06d99274a6a7a781218d146519eb And we can clean up its subclasses and resources also. Bug: 234570979 Test: m Settings Change-Id: I4a24a34e814401749894a85375a05691b537f5a3
73 lines
2.6 KiB
Java
73 lines
2.6 KiB
Java
/*
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* Copyright (C) 2022 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 com.android.settings.accessibility;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.res.Resources;
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import android.provider.Settings;
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import com.android.settings.R;
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import java.util.Arrays;
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import java.util.List;
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import java.util.stream.Collectors;
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/**
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* Data class for storing the configurations related to the font size.
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*/
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final class FontSizeData extends PreviewSizeData<Float> {
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private static final float FONT_SCALE_DEF_VALUE = 1.0f;
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FontSizeData(Context context) {
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super(context);
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final Resources resources = getContext().getResources();
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final ContentResolver resolver = getContext().getContentResolver();
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final List<String> strEntryValues =
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Arrays.asList(resources.getStringArray(R.array.entryvalues_font_size));
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setDefaultValue(FONT_SCALE_DEF_VALUE);
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final float currentScale =
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Settings.System.getFloat(resolver, Settings.System.FONT_SCALE, getDefaultValue());
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setInitialIndex(fontSizeValueToIndex(currentScale, strEntryValues.toArray(new String[0])));
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setValues(strEntryValues.stream().map(Float::valueOf).collect(Collectors.toList()));
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}
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@Override
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void commit(int currentProgress) {
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final ContentResolver resolver = getContext().getContentResolver();
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Settings.System.putFloat(resolver, Settings.System.FONT_SCALE,
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getValues().get(currentProgress));
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}
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/**
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* Utility function that returns the index in a string array with which the represented value is
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* the closest to a given float value.
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*/
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private static int fontSizeValueToIndex(float val, String[] indices) {
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float lastVal = Float.parseFloat(indices[0]);
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for (int i = 1; i < indices.length; i++) {
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float thisVal = Float.parseFloat(indices[i]);
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if (val < (lastVal + (thisVal - lastVal) * .5f)) {
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return i - 1;
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}
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lastVal = thisVal;
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}
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return indices.length - 1;
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}
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}
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