Add captioning preferences screen
BUG: 9926077 Change-Id: Iea141d5d6fd0e4f134c36c51d89830b3c31abd09
This commit is contained in:
Alan Viverette
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/*
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* Copyright (C) 2013 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.res.Resources;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceChangeListener;
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import android.provider.Settings;
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import android.view.accessibility.CaptioningManager;
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import android.view.accessibility.CaptioningManager.CaptionStyle;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import com.android.settings.accessibility.ListDialogPreference.OnValueChangedListener;
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/**
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* Settings fragment containing captioning properties.
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*/
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public class CaptionPropertiesFragment extends SettingsPreferenceFragment
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implements OnPreferenceChangeListener, OnValueChangedListener {
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private ToggleCaptioningPreferenceFragment mParent;
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// Standard options.
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private LocalePreference mLocale;
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private ListPreference mFontSize;
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private PresetPreference mPreset;
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// Custom options.
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private ListPreference mTypeface;
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private ColorPreference mForegroundColor;
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private EdgeTypePreference mEdgeType;
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private ColorPreference mEdgeColor;
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private ColorPreference mBackgroundColor;
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private ColorPreference mBackgroundOpacity;
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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addPreferencesFromResource(R.xml.captioning_settings);
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initializeAllPreferences();
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updateAllPreferences();
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installUpdateListeners();
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}
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/**
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* Sets the parent fragment, which is used to update the live preview.
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*
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* @param parent the parent fragment
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*/
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public void setParent(ToggleCaptioningPreferenceFragment parent) {
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mParent = parent;
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}
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private void initializeAllPreferences() {
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final Resources res = getResources();
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final int[] presetValues = res.getIntArray(R.array.captioning_preset_selector_values);
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final String[] presetTitles = res.getStringArray(R.array.captioning_preset_selector_titles);
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mPreset = (PresetPreference) findPreference("captioning_preset");
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mPreset.setValues(presetValues);
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mPreset.setTitles(presetTitles);
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final int[] colorValues = res.getIntArray(R.array.captioning_color_selector_values);
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final String[] colorTitles = res.getStringArray(R.array.captioning_color_selector_titles);
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mForegroundColor = (ColorPreference) findPreference("captioning_foreground_color");
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mForegroundColor.setTitles(colorTitles);
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mForegroundColor.setValues(colorValues);
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mEdgeColor = (ColorPreference) findPreference("captioning_edge_color");
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mEdgeColor.setTitles(colorTitles);
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mEdgeColor.setValues(colorValues);
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final int[] bgColorValues = res.getIntArray(
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R.array.captioning_background_color_selector_values);
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final String[] bgColorTitles = res.getStringArray(
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R.array.captioning_background_color_selector_titles);
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mBackgroundColor = (ColorPreference) findPreference("captioning_background_color");
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mBackgroundColor.setTitles(bgColorTitles);
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mBackgroundColor.setValues(bgColorValues);
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final int[] opacityValues = res.getIntArray(R.array.captioning_opacity_selector_values);
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final String[] opacityTitles = res.getStringArray(
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R.array.captioning_opacity_selector_titles);
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mBackgroundOpacity = (ColorPreference) findPreference("captioning_background_opacity");
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mBackgroundOpacity.setTitles(opacityTitles);
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mBackgroundOpacity.setValues(opacityValues);
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mEdgeType = (EdgeTypePreference) findPreference("captioning_edge_type");
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mTypeface = (ListPreference) findPreference("captioning_typeface");
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mFontSize = (ListPreference) findPreference("captioning_font_size");
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mLocale = (LocalePreference) findPreference("captioning_locale");
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}
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private void installUpdateListeners() {
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mPreset.setOnValueChangedListener(this);
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mForegroundColor.setOnValueChangedListener(this);
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mEdgeColor.setOnValueChangedListener(this);
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mBackgroundColor.setOnValueChangedListener(this);
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mBackgroundOpacity.setOnValueChangedListener(this);
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mEdgeType.setOnValueChangedListener(this);
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mTypeface.setOnPreferenceChangeListener(this);
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mFontSize.setOnPreferenceChangeListener(this);
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mLocale.setOnPreferenceChangeListener(this);
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}
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private void updateAllPreferences() {
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final ContentResolver cr = getContentResolver();
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final int preset = CaptionStyle.getRawPreset(cr);
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mPreset.setValue(preset);
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final float fontSize = CaptioningManager.getFontSize(cr);
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mFontSize.setValue(Float.toString(fontSize));
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final CaptionStyle attrs = CaptionStyle.getCustomStyle(cr);
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mForegroundColor.setValue(attrs.foregroundColor);
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mEdgeType.setValue(attrs.edgeType);
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mEdgeColor.setValue(attrs.edgeColor);
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final int backgroundColor = attrs.backgroundColor;
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final int bgColor;
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final int bgAlpha;
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if (Color.alpha(backgroundColor) == 0) {
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bgColor = Color.TRANSPARENT;
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bgAlpha = (backgroundColor & 0xFF) << 24;
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} else {
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bgColor = backgroundColor | 0xFF000000;
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bgAlpha = backgroundColor & 0xFF000000;
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}
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mBackgroundColor.setValue(bgColor);
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mBackgroundOpacity.setValue(bgAlpha | 0xFFFFFF);
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final String rawTypeface = attrs.mRawTypeface;
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mTypeface.setValue(rawTypeface == null ? "" : rawTypeface);
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final String rawLocale = CaptioningManager.getRawLocale(cr);
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mLocale.setValue(rawLocale == null ? "" : rawLocale);
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}
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private void refreshPreviewText() {
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if (mParent != null) {
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mParent.refreshPreviewText();
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}
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}
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@Override
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public void onValueChanged(ListDialogPreference preference, int value) {
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final ContentResolver cr = getActivity().getContentResolver();
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if (mForegroundColor == preference) {
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Settings.Secure.putInt(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR, value);
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} else if (mBackgroundColor == preference || mBackgroundOpacity == preference) {
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final int bgColor = mBackgroundColor.getValue();
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final int bgAlpha = mBackgroundOpacity.getValue();
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final int argb;
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if (Color.alpha(bgColor) == 0) {
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argb = Color.alpha(bgAlpha);
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} else {
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argb = bgColor & 0x00FFFFFF | bgAlpha & 0xFF000000;
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}
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Settings.Secure.putInt(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR, argb);
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} else if (mEdgeColor == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_COLOR, value);
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} else if (mPreset == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET, value);
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} else if (mEdgeType == preference) {
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Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_TYPE, value);
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}
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refreshPreviewText();
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object value) {
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final ContentResolver cr = getActivity().getContentResolver();
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if (mTypeface == preference) {
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Settings.Secure.putString(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_TYPEFACE, (String) value);
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} else if (mFontSize == preference) {
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Settings.Secure.putFloat(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_FONT_SIZE,
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Float.parseFloat((String) value));
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} else if (mLocale == preference) {
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Settings.Secure.putString(
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cr, Settings.Secure.ACCESSIBILITY_CAPTIONING_LOCALE, (String) value);
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}
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refreshPreviewText();
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return true;
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}
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}
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