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/*
* Copyright (C) 2012 The CyanogenMod 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.settings.cyanogenmod;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.SystemProperties;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.ListPreference;
import android.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
/**
* Performance Settings
*/
public class PerformanceSettings extends SettingsPreferenceFragment
implements Preference.OnPreferenceChangeListener {
private static final String TAG = "PerformanceSettings";
private static final String USE_DITHERING_PREF = "pref_use_dithering";
private static final String USE_DITHERING_PERSIST_PROP = "persist.sys.use_dithering";
private static final String USE_DITHERING_DEFAULT = "1";
private static final String USE_16BPP_ALPHA_PREF = "pref_use_16bpp_alpha";
private static final String USE_16BPP_ALPHA_PROP = "persist.sys.use_16bpp_alpha";
private ListPreference mUseDitheringPref;
private CheckBoxPreference mUse16bppAlphaPref;
private AlertDialog alertDialog;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getPreferenceManager() != null) {
addPreferencesFromResource(R.xml.performance_settings);
PreferenceScreen prefSet = getPreferenceScreen();
String useDithering = SystemProperties.get(USE_DITHERING_PERSIST_PROP, USE_DITHERING_DEFAULT);
mUseDitheringPref = (ListPreference) prefSet.findPreference(USE_DITHERING_PREF);
mUseDitheringPref.setOnPreferenceChangeListener(this);
mUseDitheringPref.setValue(useDithering);
mUseDitheringPref.setSummary(mUseDitheringPref.getEntry());
mUse16bppAlphaPref = (CheckBoxPreference) prefSet.findPreference(USE_16BPP_ALPHA_PREF);
String use16bppAlpha = SystemProperties.get(USE_16BPP_ALPHA_PROP, "0");
mUse16bppAlphaPref.setChecked("1".equals(use16bppAlpha));
/* Display the warning dialog */
alertDialog = new AlertDialog.Builder(getActivity()).create();
alertDialog.setTitle(R.string.performance_settings_warning_title);
alertDialog.setMessage(getResources().getString(R.string.performance_settings_warning));
alertDialog.setButton(DialogInterface.BUTTON_POSITIVE,
getResources().getString(com.android.internal.R.string.ok),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
alertDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
PerformanceSettings.this.finish();
}
});
alertDialog.show();
}
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
if (preference == mUse16bppAlphaPref) {
SystemProperties.set(USE_16BPP_ALPHA_PROP,
mUse16bppAlphaPref.isChecked() ? "1" : "0");
} else {
// If we didn't handle it, let preferences handle it.
return super.onPreferenceTreeClick(preferenceScreen, preference);
}
return true;
}
public boolean onPreferenceChange(Preference preference, Object newValue) {
if (preference == mUseDitheringPref) {
String newVal = (String) newValue;
int index = mUseDitheringPref.findIndexOfValue(newVal);
SystemProperties.set(USE_DITHERING_PERSIST_PROP, newVal);
mUseDitheringPref.setSummary(mUseDitheringPref.getEntries()[index]);
}
return true;
}
}
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