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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 android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.RelativeLayout;
/**
* A layout which handles the the width of the control panel, which contains
* the shutter button, thumbnail, front/back camera picker, and mode picker.
* The purpose of this is to have a consistent width of control panel in camera,
* camcorder, and panorama modes.
*/
public class ControlPanelLayout extends RelativeLayout {
private static final String TAG = "ControlPanelLayout";
public ControlPanelLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthSpec, int heightSpec) {
int widthSpecSize = MeasureSpec.getSize(widthSpec);
int heightSpecSize = MeasureSpec.getSize(heightSpec);
int measuredSize = 0;
int mode, longSideSize, shortSideSize, specSize;
boolean isLandscape = (((Activity) getContext()).getRequestedOrientation()
== ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
if (isLandscape) {
mode = MeasureSpec.getMode(widthSpec);
longSideSize = widthSpecSize;
shortSideSize = heightSpecSize;
specSize = widthSpecSize;
} else {
mode = MeasureSpec.getMode(heightSpec);
longSideSize = heightSpecSize;
shortSideSize = widthSpecSize;
specSize = heightSpecSize;
}
if (widthSpecSize > 0 && heightSpecSize > 0 && mode == MeasureSpec.AT_MOST) {
// Calculate how big 4:3 preview occupies. Then deduct it from the
// width of the parent.
measuredSize = (int) (longSideSize - shortSideSize / 3.0 * 4.0);
} else {
Log.e(TAG, "layout_xxx of ControlPanelLayout should be wrap_content");
}
// The size cannot be smaller than minimum constraint.
int minimumSize = (isLandscape) ? getMinimumWidth() : getMinimumHeight();
if (measuredSize < minimumSize) {
measuredSize = minimumSize;
}
// The size cannot be bigger than the constraint.
if (mode == MeasureSpec.AT_MOST && measuredSize > specSize) {
measuredSize = specSize;
}
if (isLandscape) {
widthSpec = MeasureSpec.makeMeasureSpec(measuredSize, MeasureSpec.EXACTLY);
} else {
heightSpec = MeasureSpec.makeMeasureSpec(measuredSize, MeasureSpec.EXACTLY);
}
super.onMeasure(widthSpec, heightSpec);
}
}
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