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/*
* Copyright (C) 2011 The Android Open Source 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.camera.ui;
import com.android.camera.CameraPreference.OnPreferenceChangedListener;
import com.android.camera.IconListPreference;
import com.android.camera.ListPreference;
import com.android.camera.PreferenceGroup;
import com.android.camera.CameraSettings;
import com.android.camera.R;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import java.util.ArrayList;
/**
* A view that contains camera setting indicators. The indicators are spreaded
* differently based on the screen resolution.
*/
public abstract class IndicatorControl extends RelativeLayout implements
IndicatorButton.Listener, OtherSettingsPopup.Listener {
private static final String TAG = "IndicatorControl";
private Context mContext;
private OnPreferenceChangedListener mListener;
protected OnIndicatorEventListener mOnIndicatorEventListener;
protected CameraPicker mCameraPicker;
private PreferenceGroup mPreferenceGroup;
private int mDegree = 0;
ArrayList<AbstractIndicatorButton> mIndicators =
new ArrayList<AbstractIndicatorButton>();
public void setListener(OnPreferenceChangedListener listener) {
mListener = listener;
if (mCameraPicker != null) mCameraPicker.setListener(listener);
}
public IndicatorControl(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
}
public void setDegree(int degree) {
mDegree = degree;
int count = getChildCount();
for (int i = 0 ; i < count ; ++i) {
View view = getChildAt(i);
if (view instanceof RotateImageView) {
((RotateImageView) view).setDegree(degree);
}
}
}
public void setOnIndicatorEventListener(OnIndicatorEventListener listener) {
mOnIndicatorEventListener = listener;
}
// For the initialization of first-level indicator control.
public void initialize(Context context, PreferenceGroup group,
String flashSetting, String[] keys, String[] otherSettingKeys) {
initialize(context, group, keys, otherSettingKeys);
}
public void initialize(Context context, PreferenceGroup group,
String[] keys, String[] otherSettingKeys) {
// Reset the variables and states.
dismissSettingPopup();
removeIndicators();
// Initialize all variables and icons.
mPreferenceGroup = group;
// Add other settings indicator.
if (otherSettingKeys != null) {
addOtherSettingIndicator(context, R.drawable.ic_viewfinder_settings, otherSettingKeys);
}
for (int i = 0; i < keys.length; i++) {
IconListPreference pref = (IconListPreference) group.findPreference(keys[i]);
if (pref != null) {
addIndicator(context, pref);
}
}
requestLayout();
}
public void initializeCameraPicker(Context context, PreferenceGroup group) {
ListPreference pref = group.findPreference(
CameraSettings.KEY_CAMERA_ID);
if (pref == null) return;
mCameraPicker = new CameraPicker(context);
mCameraPicker.initialize(pref);
mCameraPicker.setCameraPickerIcon();
addView(mCameraPicker);
}
private void removeIndicators() {
for (View v: mIndicators) {
removeView(v);
}
mIndicators.clear();
}
@Override
public boolean shouldDelayChildPressedState() {
// Return false so the pressed feedback of the back/front camera switch
// can be showed right away.
return false;
}
public void addIndicator(Context context, IconListPreference pref) {
IndicatorButton b = new IndicatorButton(context, pref);
b.setSettingChangedListener(this);
addView(b);
mIndicators.add(b);
}
public void addOtherSettingIndicator(Context context, int resId, String[] keys) {
OtherSettingIndicatorButton b = new OtherSettingIndicatorButton(context, resId,
mPreferenceGroup, keys);
b.setSettingChangedListener(this);
addView(b);
mIndicators.add(b);
}
@Override
public void onRestorePreferencesClicked() {
if (mListener != null) {
mListener.onRestorePreferencesClicked();
}
}
@Override
public void onSettingChanged() {
if (mListener != null) {
mListener.onSharedPreferenceChanged();
}
}
public boolean dismissSettingPopup() {
for (AbstractIndicatorButton v: mIndicators) {
if (v.dismissPopup()) {
invalidate();
return true;
}
}
return false;
}
public View getActiveSettingPopup() {
for (AbstractIndicatorButton v: mIndicators) {
View result = v.getPopupWindow();
if (result != null) return result;
}
return null;
}
// Scene mode may override other camera settings (ex: flash mode).
public void overrideSettings(final String ... keyvalues) {
if (keyvalues.length % 2 != 0) {
throw new IllegalArgumentException();
}
for (AbstractIndicatorButton b: mIndicators) {
b.overrideSettings(keyvalues);
}
}
public void reloadPreferences() {
mPreferenceGroup.reloadValue();
for (AbstractIndicatorButton b: mIndicators) {
b.reloadPreferences();
}
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
final int count = getChildCount();
for (int i = 0; i < count; i++) {
View v = getChildAt(i);
// Zoom buttons and shutter button are controlled by the activity.
if (v instanceof AbstractIndicatorButton) {
v.setEnabled(enabled);
}
}
if (mCameraPicker != null) mCameraPicker.setEnabled(enabled);
}
}
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