Visual analogue scale (Android, Server)

Paco-Server/ear/default/web/js/services.js

@@ -451,6 +451,7 @@ pacoApp.service('config', function() {
 
   this.responseTypes = {
     'likert': 'Scale',
+    'va_scale': 'Visual Analogue Scale',
     'likert_smileys': '5 Point Smiley Scale',
     'number': 'Number',
     'open text': 'Open Text',

Paco/res/drawable/seekbar_background_fill.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- ### -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:startColor="#bbbbbb"
+        android:centerColor="#bbbbbb"
+        android:endColor="#bbbbbb"
+        android:angle="90" />
+
+    <corners android:radius="5px" />
+
+    <stroke
+        android:width="2dp"
+        android:color="#50999999" />
+
+    <stroke
+        android:width="1dp"
+        android:color="#70555555" />
+</shape>

Paco/res/drawable/seekbar_progress.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- ### -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@android:id/background"
+        android:drawable="@drawable/seekbar_background_fill" />
+
+    <item android:id="@android:id/progress">
+        <clip android:drawable="@drawable/seekbar_progress_fill" />
+    </item>
+</layer-list>

Paco/res/drawable/seekbar_progress_fill.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- ### -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:startColor="#bbbbbb"
+        android:centerColor="#bbbbbb"
+        android:endColor="#bbbbbb"
+        android:angle="90" />
+
+    <corners android:radius="5px" />
+
+    <stroke
+        android:width="2dp"
+        android:color="#50999999" />
+
+    <stroke
+        android:width="1dp"
+        android:color="#70555555" />
+</shape>

Paco/res/layout/va_scale.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ Copyright 2011 Google Inc. All Rights Reserved.
+ ~
+ ~ 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.
+ ###
+-->
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content" >
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal"
+        android:paddingBottom="8dip"
+        android:weightSum="1">
+
+
+        <com.pacoapp.paco.ui.SeekBar_api14
+            android:id="@+id/va_scale_input"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_weight="1"
+            android:progressDrawable="@drawable/seekbar_progress" />
+    </LinearLayout>
+
+</merge>

Paco/src/com/google/android/apps/paco/Input.java

@@ -34,6 +34,7 @@ public class Input {
   public static final String PHOTO = "photo";
   public static final String SOUND = "sound";
   public static final String ACTIVITY = "activity";
+  public static final String VA_SCALE = "va_scale";
 
 
   @JsonIgnore

Paco/src/com/pacoapp/paco/ui/InputLayout.java

@@ -75,6 +75,7 @@
 import android.widget.RadioGroup.OnCheckedChangeListener;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.SeekBar;
 import android.widget.Toast;
 
 public class InputLayout extends LinearLayout implements SpeechRecognitionListener {
@@ -108,6 +109,7 @@ public class InputLayout extends LinearLayout implements SpeechRecognitionListen
   private MediaPlayer   audioPlayer = null;
   boolean mStartRecording = true;
   boolean mStartPlaying = true;
+  private boolean va_scale_hasChanged = false;
 
 
   public InputLayout(ExperimentExecutor context, Input2 input2) {
@@ -221,6 +223,8 @@ public Object getValue() {
       return getPhotoValue();
     } else if (input.getResponseType().equals(Input2.AUDIO)) {
       return getAudioValue();
+    } else if (input.getResponseType().equals(Input2.VA_SCALE)) {
+      return getVaScaleValue();
     }
     return null;
   }
@@ -245,6 +249,8 @@ public String getValueAsString() {
       return getPhotoValue();
     } else if (input.getResponseType().equals(Input2.AUDIO)) {
       return getAudioValue();
+    } else if (input.getResponseType().equals(Input2.VA_SCALE)) {
+      return intToString(getVaScaleValue());
     }
     return null;
   }
@@ -286,6 +292,8 @@ public Class getResponseType() {
     } else if (input.getResponseType().equals(Input2.SOUND)) {
       return SoundPool.class; // TODO (bobevans): is this really a good idea as
                               // the storage type? probably not.
+    } else if (input.getResponseType().equals(Input2.VA_SCALE)) {
+      return Integer.class;
     }
     return Object.class;
   }
@@ -308,6 +316,16 @@ private String getAudioValue() {
     return "";
   }
 
+  private Integer getVaScaleValue() {
+    SeekBar seekBar =(SeekBar) componentWithValue;
+//    if(seekBar.getThumb().mutate().getAlpha() == 0)
+
+    if(va_scale_hasChanged)
+      return ((SeekBar) componentWithValue).getProgress();
+    else
+      return null;
+  }
+
 
   private String getPhotoValue() {
     // Load data from this.file if it is non-null
@@ -495,6 +513,8 @@ private View getInputResponseTypeView(Input2 input2) {
       return renderPhotoButton(input2);
     } else if (questionType.equals(Input2.AUDIO)) {
       return renderAudioRecorder(input2);
+    } else if (questionType.equals(Input2.VA_SCALE)) {
+      return renderVaScale();
     }
     return null;
   }
@@ -907,6 +927,30 @@ private int getRadioGroupLayoutId(Integer steps) {
 
   }
 
+  private View renderVaScale() {
+    View view = ((LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
+            R.layout.va_scale, this, true);
+    SeekBar_api14 seekBar = (SeekBar_api14) findViewById(R.id.va_scale_input);
+    seekBar.getThumb().mutate().setAlpha(0);
+
+    seekBar.setOnSeekBarChangeListener(new SeekBar_api14.OnSeekBarChangeListener() {
+      @Override
+      public void onStartTrackingTouch(SeekBar_api14 s) {
+        va_scale_hasChanged = true;
+        s.getThumb().setAlpha(255);
+        notifyChangeListeners();
+      }
+      @Override
+      public void onStopTrackingTouch(SeekBar_api14 seekBar) {
+      }
+      @Override
+      public void onProgressChanged(SeekBar_api14 seekBar, int progress,boolean fromUser) {
+      }
+    });
+
+    return seekBar;
+  }
+
   private View renderOpenText() {
     View likertView = ((LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
         R.layout.open_text, this, true);

Paco/src/com/pacoapp/paco/ui/SeekBar_api14.java

@@ -0,0 +1,74 @@
+package com.pacoapp.paco.ui;
+
+import android.widget.SeekBar;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.graphics.drawable.Drawable;
+
+/**
+ * SeekBar.getThumb() is not supported prior to SDK 16 - this class adds this functionality
+ *
+ * If Paco is pushed to SDK 16 (or newer) just remove this class and replace every SeekBar_api14  in
+ * the code with the native SeekBar (behavior, code and function-names can stay the same)
+ */
+
+
+
+public class SeekBar_api14 extends SeekBar{
+  Drawable myThumb;
+
+  public interface OnSeekBarChangeListener {
+    void onProgressChanged(SeekBar_api14 seekBar, int progress, boolean fromUser);
+    void onStartTrackingTouch(SeekBar_api14 seekBar);
+    void onStopTrackingTouch(SeekBar_api14 seekBar);
+  }
+
+
+  public class OnSeekBarChangeListener_api14 implements SeekBar.OnSeekBarChangeListener {
+    SeekBar_api14 seekBar_api14;
+    SeekBar_api14.OnSeekBarChangeListener listener_fu;
+    OnSeekBarChangeListener_api14(SeekBar_api14 s, SeekBar_api14.OnSeekBarChangeListener l) {
+      seekBar_api14 = s;
+      listener_fu = l;
+    }
+
+    @Override
+    public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
+      listener_fu.onProgressChanged(seekBar_api14, progress, fromUser);
+    }
+    @Override
+    public void onStartTrackingTouch(SeekBar seekBar) {
+      listener_fu.onStartTrackingTouch(seekBar_api14);
+    }
+    @Override
+    public void onStopTrackingTouch(SeekBar seekBar) {
+      listener_fu.onStopTrackingTouch(seekBar_api14);
+    }
+  }
+
+
+  public void setOnSeekBarChangeListener(SeekBar_api14.OnSeekBarChangeListener l) {
+    super.setOnSeekBarChangeListener(new OnSeekBarChangeListener_api14(this, l));
+  }
+
+  public SeekBar_api14(Context context) {
+    super(context);
+  }
+  public SeekBar_api14(Context context, AttributeSet attrs) {
+    super(context, attrs);
+  }
+  public SeekBar_api14(Context context, AttributeSet attrs, int defStyle) {
+    super(context, attrs, defStyle);
+  }
+
+
+
+  @Override
+  public void setThumb(Drawable thumb) {
+    super.setThumb(thumb);
+    myThumb = thumb;
+  }
+  public Drawable getThumb() {
+    return myThumb;
+  }
+}

Shared/src/com/pacoapp/paco/shared/model2/Input2.java

@@ -34,6 +34,7 @@ public class Input2 extends ModelBase implements Validatable, Serializable {
   public static final String SOUND = "sound";
   public static final String ACTIVITY = "activity";
   public static final String AUDIO = "audio";
+  public static final String VA_SCALE = "va_scale";
 
   public static String[] RESPONSE_TYPES = {LIKERT_SMILEYS, LIKERT, OPEN_TEXT, LIST, NUMBER,
     LOCATION, PHOTO, SOUND, ACTIVITY, AUDIO};

Shared/src_non_j2objc/com/pacoapp/paco/shared/model/InputDAO.java

@@ -45,9 +45,10 @@ public class InputDAO implements Serializable {
   public static final String PHOTO = "photo";
   public static final String SOUND = "sound";
   public static final String ACTIVITY = "activity";
+  public static final String VA_SCALE = "va_scale";
 
   public static String[] RESPONSE_TYPES = {LIKERT_SMILEYS, LIKERT, OPEN_TEXT, LIST, NUMBER,
-    LOCATION, PHOTO, SOUND, ACTIVITY};
+    LOCATION, PHOTO, SOUND, ACTIVITY, VA_SCALE};
 
   private Long id;
   private String questionType;