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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.browser;
import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.widget.ImageView;
import android.widget.LinearLayout;
import java.util.Map;
/**
* Displays a series of dots. The selected one is highlighted.
* No animations yet. Nothing fancy.
*/
class Dots extends LinearLayout {
private static final int MAX_DOTS = 8;
private int mSelected = -1;
public Dots(Context context) {
this(context, null);
}
public Dots(Context context, AttributeSet attrs) {
super(context, attrs);
setGravity(Gravity.CENTER);
setPadding(0, 4, 0, 4);
LayoutParams lp =
new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
for (int i = 0; i < MAX_DOTS; i++) {
ImageView dotView = new ImageView(mContext);
dotView.setImageResource(R.drawable.page_indicator_unselected2);
addView(dotView, lp);
}
}
/**
* @param dotCount if less than 1 or greater than MAX_DOTS, Dots
* disappears
*/
public void setDotCount(int dotCount) {
if (dotCount > 1 && dotCount <= MAX_DOTS) {
setVisibility(VISIBLE);
for (int i = 0; i < MAX_DOTS; i++) {
getChildAt(i).setVisibility(i < dotCount? VISIBLE : GONE);
}
} else {
setVisibility(GONE);
}
}
public void setSelected(int index) {
if (index < 0 || index >= MAX_DOTS) return;
if (mSelected >= 0) {
// Unselect old
((ImageView)getChildAt(mSelected)).setImageResource(
R.drawable.page_indicator_unselected2);
}
((ImageView)getChildAt(index)).setImageResource(R.drawable.page_indicator);
mSelected = index;
}
}
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