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      1 /*
      2  * Copyright (C) 2016 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 org.drrickorang.loopback;
     18 
     19 import android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.widget.EditText;
     22 import android.widget.LinearLayout;
     23 import android.widget.SeekBar;
     24 import android.widget.TextView;
     25 
     26 public class SettingsPicker extends LinearLayout implements SeekBar.OnSeekBarChangeListener,
     27         CatchEventsEditText.EditTextEventListener {
     28 
     29     protected TextView mTitleTextView;
     30     protected CatchEventsEditText mValueEditText;
     31     protected SeekBar mValueSeekBar;
     32     protected SettingChangeListener mSettingsChangeListener;
     33 
     34     protected int mMinimumValue;
     35     protected int mMaximumValue;
     36 
     37     public interface SettingChangeListener {
     38         public void settingChanged(int value);
     39     }
     40 
     41     public SettingsPicker(Context context, AttributeSet attrs) {
     42         super(context, attrs);
     43 
     44         inflate(context, R.layout.settings_picker, this);
     45 
     46         mTitleTextView = (TextView) findViewById(R.id.settings_title);
     47         mValueEditText = (CatchEventsEditText) findViewById(R.id.settings_valueText);
     48         mValueSeekBar = (SeekBar) findViewById(R.id.settings_seekbar);
     49 
     50         mValueEditText.setEditTextEvenListener(this);
     51         mValueSeekBar.setOnSeekBarChangeListener(this);
     52     }
     53 
     54     public void setMinMaxDefault(int min, int max, int def) {
     55         mMinimumValue = min;
     56         mMaximumValue = max;
     57         mValueSeekBar.setMax(max - min);
     58         setValue(def);
     59     }
     60 
     61     public void setTitle(String title) {
     62         mTitleTextView.setText(title);
     63     }
     64 
     65     public void setValue(int value) {
     66         mValueSeekBar.setProgress(value - mMinimumValue);
     67         mValueEditText.setText(Integer.toString(value));
     68     }
     69 
     70     public void setSettingsChangeListener(SettingChangeListener settingsChangeListener) {
     71         mSettingsChangeListener = settingsChangeListener;
     72     }
     73 
     74     protected void textChanged(int value) {
     75         mValueSeekBar.setProgress(value - mMinimumValue);
     76         if (mSettingsChangeListener != null) {
     77             mSettingsChangeListener.settingChanged(value);
     78         }
     79     }
     80 
     81     protected void sliderChanged(int value, boolean userInteractionFinished) {
     82         mValueEditText.setText(Integer.toString(value));
     83         if (userInteractionFinished && mSettingsChangeListener != null) {
     84             mSettingsChangeListener.settingChanged(value);
     85         }
     86     }
     87 
     88     @Override
     89     public void textEdited(EditText v) {
     90         if (!v.getText().toString().isEmpty()) {
     91             int value;
     92             try {
     93                 value = Integer.parseInt(v.getText().toString());
     94             } catch (NumberFormatException e) {
     95                 value = mMinimumValue;
     96                 v.setText(Integer.toString(value));
     97             }
     98             if (value < mMinimumValue) {
     99                 value = mMinimumValue;
    100                 v.setText(Integer.toString(value));
    101             } else if (value > mMaximumValue) {
    102                 value = mMaximumValue;
    103                 v.setText(Integer.toString(value));
    104             }
    105             textChanged(value);
    106         } else {
    107             sliderChanged(mMinimumValue + mValueSeekBar.getProgress(), false);
    108         }
    109     }
    110 
    111     @Override
    112     public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    113         if (fromUser) {
    114             sliderChanged(mMinimumValue + progress, false);
    115         }
    116     }
    117 
    118     @Override
    119     public void onStartTrackingTouch(SeekBar seekBar) {
    120 
    121     }
    122 
    123     @Override
    124     public void onStopTrackingTouch(SeekBar seekBar) {
    125         sliderChanged(mMinimumValue + seekBar.getProgress(), true);
    126     }
    127 
    128     @Override
    129     public void setEnabled(boolean enabled) {
    130         mValueEditText.setEnabled(enabled);
    131         mValueSeekBar.setEnabled(enabled);
    132     }
    133 }
    134