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/*
* Copyright (C) 2013 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 android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Rect;
import android.hardware.display.DisplayManager;
import android.hardware.display.DisplayManager.DisplayListener;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;
import com.android.camera.util.ApiHelper;
@SuppressLint("NewApi")
public class CameraRootView extends FrameLayout {
private int mTopMargin = 0;
private int mBottomMargin = 0;
private int mLeftMargin = 0;
private int mRightMargin = 0;
private Object mDisplayListener;
private MyDisplayListener mListener;
private Rect mLastInsets = new Rect();
private Rect mTmpRect = new Rect();
public interface MyDisplayListener {
public void onDisplayChanged();
}
public CameraRootView(Context context, AttributeSet attrs) {
super(context, attrs);
initDisplayListener();
}
public void redoFitSystemWindows() {
if (mLastInsets.left != 0 || mLastInsets.right != 0
|| mLastInsets.top != 0 || mLastInsets.bottom != 0) {
Rect insets = new Rect(mLastInsets);
fitSystemWindows(insets);
}
}
@Override
protected boolean fitSystemWindows(Rect insets) {
mLastInsets.set(insets);
return super.fitSystemWindows(insets);
}
public void initDisplayListener() {
if (ApiHelper.HAS_DISPLAY_LISTENER) {
mDisplayListener = new DisplayListener() {
@Override
public void onDisplayAdded(int arg0) {}
@Override
public void onDisplayChanged(int arg0) {
if (mListener != null) {
mListener.onDisplayChanged();
}
}
@Override
public void onDisplayRemoved(int arg0) {}
};
}
}
public void removeDisplayChangeListener() {
mListener = null;
}
public void setDisplayChangeListener(MyDisplayListener listener) {
mListener = listener;
}
public Rect getInsetsForOrientation(int orientation) {
switch (orientation) {
case 90:
mTmpRect.set(mLastInsets.top, mLastInsets.right,
mLastInsets.bottom, mLastInsets.left);
break;
case 180:
mTmpRect.set(mLastInsets.right, mLastInsets.bottom,
mLastInsets.left, mLastInsets.top);
break;
case 270:
mTmpRect.set(mLastInsets.bottom, mLastInsets.left,
mLastInsets.top, mLastInsets.right);
break;
default:
mTmpRect.set(mLastInsets);
break;
}
return mTmpRect;
}
public Rect getClientRectForOrientation(int orientation) {
Rect result = getInsetsForOrientation(orientation);
if (orientation == 90 || orientation == 270) {
result.right = getHeight() - result.right;
result.bottom = getWidth() - result.bottom;
} else {
result.right = getWidth() - result.right;
result.bottom = getHeight() - result.bottom;
}
return result;
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
if (ApiHelper.HAS_DISPLAY_LISTENER) {
((DisplayManager) getContext().getSystemService(Context.DISPLAY_SERVICE))
.registerDisplayListener((DisplayListener) mDisplayListener, null);
}
}
@Override
public void onDetachedFromWindow () {
super.onDetachedFromWindow();
if (ApiHelper.HAS_DISPLAY_LISTENER) {
((DisplayManager) getContext().getSystemService(Context.DISPLAY_SERVICE))
.unregisterDisplayListener((DisplayListener) mDisplayListener);
}
}
}
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