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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.camera.ui;
     18 
     19 import android.content.Context;
     20 
     21 import com.android.camera.R;
     22 import com.android.camera.IconListPreference;
     23 import com.android.camera.PreferenceGroup;
     24 
     25 public class GpsIndicator extends BasicIndicator {
     26 
     27     private static final int GPS_ON_INDEX = 1;
     28 
     29     private ResourceTexture mNoSignalIcon;
     30     private boolean mHasSignal = false;
     31 
     32     public GpsIndicator(Context context,
     33             PreferenceGroup group, IconListPreference preference) {
     34         super(context, group, preference);
     35     }
     36 
     37     @Override
     38     protected ResourceTexture getIcon() {
     39         if (mIndex == GPS_ON_INDEX && !mHasSignal) {
     40             if (mNoSignalIcon == null) {
     41                 Context context = getGLRootView().getContext();
     42                 mNoSignalIcon = new ResourceTexture(
     43                         context, R.drawable.ic_viewfinder_gps_no_signal);
     44             }
     45             return mNoSignalIcon;
     46         }
     47         return super.getIcon();
     48     }
     49 
     50     public void setHasSignal(boolean hasSignal) {
     51         if (mHasSignal == hasSignal) return;
     52         mHasSignal = hasSignal;
     53         invalidate();
     54     }
     55 
     56     @Override
     57     protected void onPreferenceChanged(int newIndex) {
     58         mHasSignal = false;
     59         super.onPreferenceChanged(newIndex);
     60     }
     61 }
     62