/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. 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 distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.settings.display;
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import android.content.Context;
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import androidx.preference.SwitchPreference;
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import androidx.preference.ListPreference;
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import androidx.preference.PreferenceScreen;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceCategory;
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import com.android.settings.core.PreferenceControllerMixin;
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import com.android.settings.widget.SeekBarPreference;
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import com.android.settingslib.core.AbstractPreferenceController;
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import java.io.File;
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import com.softwinner.AWDisplay;
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import com.android.settings.R;
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public class AwDisplayPreferenceController extends AbstractPreferenceController implements
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PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
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private static final String HDMI_STATE = "/sys/class/extcon/hdmi/state";
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private static final String CVBS_STATE = "/sys/class/extcon/cvbs/state";
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private static final String KEY_HDMI_SETTING = "second_screen_setting";
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private static final String KEY_HDMI_OUTPUT_MODE = "second_screen_output_mode";
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private static final String KEY_HDMI_FULLSCREEN = "hdmi_fullscreen";
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private static final String KEY_HDMI_WIDTH_SCALE = "second_screen_width_scale";
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private static final String KEY_HDMI_HEIGHT_SCALE = "second_screen_height_scale";
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private static final int HDMI_SCALE_MIN = 80;
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private static final int HDMI_SCALE_MAX = 100;
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private static final int NONE_DISPLAY = 0;
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private static final int HDMI_PLUG_IN = 1;
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private static final int CVBS_PLUG_IN = 2;
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private int display_type = NONE_DISPLAY;
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private ListPreference mOutputMode;
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private SwitchPreference mFullscreen;
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private SeekBarPreference mWidthScale;
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private SeekBarPreference mHeightScale;
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private Context mContext;
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public AwDisplayPreferenceController(Context context) {
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super(context);
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mContext = context;
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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if (isAvailable()) {
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setVisible(screen, getPreferenceKey(), true);
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mOutputMode = (ListPreference) screen.findPreference(KEY_HDMI_OUTPUT_MODE);
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mOutputMode.setOnPreferenceChangeListener(this);
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mFullscreen = (SwitchPreference) screen.findPreference(KEY_HDMI_FULLSCREEN);
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mFullscreen.setOnPreferenceChangeListener(this);
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mWidthScale = (SeekBarPreference) screen.findPreference(KEY_HDMI_WIDTH_SCALE);
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mWidthScale.setOnPreferenceChangeListener(this);
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mHeightScale = (SeekBarPreference) screen.findPreference(KEY_HDMI_HEIGHT_SCALE);
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mHeightScale.setOnPreferenceChangeListener(this);
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mWidthScale.setMax(HDMI_SCALE_MAX - HDMI_SCALE_MIN);
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mHeightScale.setMax(HDMI_SCALE_MAX - HDMI_SCALE_MIN);
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if (display_type == CVBS_PLUG_IN) {
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//CVBS dont need full screen mode
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PreferenceCategory screen_settings = (PreferenceCategory)(screen.findPreference(KEY_HDMI_SETTING));
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screen_settings.removePreference(mFullscreen);
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//OutputMode default ues hdmi mode entries and values, so if display type is cvbs, should change entries and values
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mOutputMode.setEntries(R.array.cvbs_output_mode_entries);
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mOutputMode.setEntryValues(R.array.cvbs_output_mode_values);
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}
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} else {
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setVisible(screen, getPreferenceKey(), false);
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}
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}
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//support HDMI and CVBS
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private boolean checkHDMIState() {
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if (new File(HDMI_STATE).exists()) {
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display_type = HDMI_PLUG_IN;
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return true;
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}
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return false;
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}
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private boolean checkCVBSState() {
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if (new File(CVBS_STATE).exists()) {
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display_type = CVBS_PLUG_IN;
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return true;
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}
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return false;
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}
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@Override
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public boolean isAvailable() {
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//second display only support HDMI or CVBS, can not support them as the same time
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return mContext.getResources().getBoolean(R.bool.aw_display_enabled) && (checkHDMIState() || checkCVBSState());
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}
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@Override
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public String getPreferenceKey() {
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return KEY_HDMI_SETTING;
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}
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@Override
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public void updateState(Preference preference) {
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if (mOutputMode != null) {
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int mode = AWDisplay.getHdmiMode();
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mOutputMode.setValue("" + mode);
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}
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if (mFullscreen != null) {
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boolean full = AWDisplay.getHdmiFullscreen();
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mFullscreen.setChecked(full);
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}
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if (mWidthScale != null) {
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int value = AWDisplay.getMarginWidth();
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mWidthScale.setProgress(value - HDMI_SCALE_MIN);
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}
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if (mHeightScale != null) {
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int value = AWDisplay.getMarginHeight();
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mHeightScale.setProgress(value - HDMI_SCALE_MIN);
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}
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object newValue) {
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if (mOutputMode == preference) {
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int mode = Integer.parseInt((String) newValue);
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AWDisplay.setHdmiMode(mode);
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} else if (mFullscreen == preference) {
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boolean full = (Boolean) newValue;
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AWDisplay.setHdmiFullscreen(full);
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} else if (mWidthScale == preference) {
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int value = (Integer) newValue;
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AWDisplay.setMarginWidth(value + HDMI_SCALE_MIN);
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} else if (mHeightScale == preference) {
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int value = (Integer) newValue;
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AWDisplay.setMarginHeight(value + HDMI_SCALE_MIN);
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}
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return true;
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}
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}
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