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      1 /*
      2  * Copyright (C) 2013 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.gallery3d.filtershow.controller;
     18 
     19 import android.content.Context;
     20 import android.view.LayoutInflater;
     21 import android.view.View;
     22 import android.view.ViewGroup;
     23 import android.widget.LinearLayout;
     24 import android.widget.SeekBar;
     25 import android.widget.SeekBar.OnSeekBarChangeListener;
     26 
     27 import com.android.gallery3d.R;
     28 import com.android.gallery3d.filtershow.editors.Editor;
     29 
     30 public class BasicSlider implements Control {
     31     private SeekBar mSeekBar;
     32     private ParameterInteger mParameter;
     33     Editor mEditor;
     34 
     35     @Override
     36     public void setUp(ViewGroup container, Parameter parameter, Editor editor) {
     37         container.removeAllViews();
     38         mEditor = editor;
     39         Context context = container.getContext();
     40         mParameter = (ParameterInteger) parameter;
     41         LayoutInflater inflater =
     42                 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     43         LinearLayout lp = (LinearLayout) inflater.inflate(
     44                 R.layout.filtershow_seekbar, container, true);
     45         mSeekBar = (SeekBar) lp.findViewById(R.id.primarySeekBar);
     46         mSeekBar.setVisibility(View.VISIBLE);
     47         updateUI();
     48         mSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
     49 
     50             @Override
     51             public void onStopTrackingTouch(SeekBar seekBar) {
     52             }
     53 
     54             @Override
     55             public void onStartTrackingTouch(SeekBar seekBar) {
     56             }
     57 
     58             @Override
     59             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
     60                 if (mParameter != null) {
     61                     mParameter.setValue(progress + mParameter.getMinimum());
     62                     mEditor.commitLocalRepresentation();
     63 
     64                 }
     65             }
     66         });
     67     }
     68 
     69     @Override
     70     public View getTopView() {
     71         return mSeekBar;
     72     }
     73 
     74     @Override
     75     public void setPrameter(Parameter parameter) {
     76         mParameter = (ParameterInteger) parameter;
     77         if (mSeekBar != null) {
     78             updateUI();
     79         }
     80     }
     81 
     82     @Override
     83     public void updateUI() {
     84         mSeekBar.setMax(mParameter.getMaximum() - mParameter.getMinimum());
     85         mSeekBar.setProgress(mParameter.getValue() - mParameter.getMinimum());
     86     }
     87 }
     88