| /* |
| * 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; |
| } |
| } |