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/*
* Copyright (C) 2008 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.systemui.statusbar.phone;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.LinearLayout;
import com.android.systemui.R;
public class IconMerger extends LinearLayout {
private static final String TAG = "IconMerger";
private static final boolean DEBUG = false;
private int mIconSize;
private View mMoreView;
public IconMerger(Context context, AttributeSet attrs) {
super(context, attrs);
mIconSize = context.getResources().getDimensionPixelSize(
R.dimen.status_bar_icon_size);
if (DEBUG) {
setBackgroundColor(0x800099FF);
}
}
public void setOverflowIndicator(View v) {
mMoreView = v;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
// we need to constrain this to an integral multiple of our children
int width = getMeasuredWidth();
setMeasuredDimension(width - (width % mIconSize), getMeasuredHeight());
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
checkOverflow(r - l);
}
private void checkOverflow(int width) {
if (mMoreView == null) return;
final int N = getChildCount();
int visibleChildren = 0;
for (int i=0; i<N; i++) {
if (getChildAt(i).getVisibility() != GONE) visibleChildren++;
}
final boolean overflowShown = (mMoreView.getVisibility() == View.VISIBLE);
// let's assume we have one more slot if the more icon is already showing
if (overflowShown) visibleChildren --;
final boolean moreRequired = visibleChildren * mIconSize > width;
if (moreRequired != overflowShown) {
post(new Runnable() {
@Override
public void run() {
mMoreView.setVisibility(moreRequired ? View.VISIBLE : View.GONE);
}
});
}
}
}
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