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/*
* Copyright (C) 2010 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.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import java.util.ArrayList;
/**
* A view that contains camera setting indicators which are spread over a
* vertical bar in preview frame.
*/
public class IndicatorBar extends IndicatorControl {
private static final String TAG = "IndicatorBar";
int mSelectedIndex = -1;
public IndicatorBar(Context context) {
super(context);
}
public IndicatorBar(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (!onFilterTouchEventForSecurity(event)) return false;
int action = event.getAction();
if (!isEnabled()) return false;
double x = (double) event.getX();
double y = (double) event.getY();
if (x > getWidth() || x < 0) return false;
if (y > getHeight() || y < 0) return false;
int index = (int) (y * getChildCount()) / getHeight();
AbstractIndicatorButton b = (AbstractIndicatorButton) getChildAt(index);
b.dispatchTouchEvent(event);
if ((mSelectedIndex != -1) && (index != mSelectedIndex)) {
AbstractIndicatorButton c = (AbstractIndicatorButton) getChildAt(mSelectedIndex);
event.setAction(MotionEvent.ACTION_CANCEL);
c.dispatchTouchEvent(event);
c.dismissPopup();
if (action == MotionEvent.ACTION_MOVE) {
event.setAction(MotionEvent.ACTION_DOWN);
b.dispatchTouchEvent(event);
}
}
mSelectedIndex = index;
return true;
}
@Override
protected void onLayout(
boolean changed, int left, int top, int right, int bottom) {
int count = getChildCount();
if (count == 0) return;
int width = right - left;
int height = bottom - top;
int h = height / count;
for (int i = 0; i < count; i++) {
getChildAt(i).layout(0, top + i * height / count, width,
top + i * height / count + h);
}
}
}
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