1 files changed, 131 insertions, 0 deletions
diff --git a/srcs/juloo.keyboard2/prefs/SlideBarPreference.java b/srcs/juloo.keyboard2/prefs/SlideBarPreference.java
new file mode 100644
index 0000000..cacf37e
--- /dev/null
+++ b/srcs/juloo.keyboard2/prefs/SlideBarPreference.java
@@ -0,0 +1,131 @@
+package juloo.keyboard2.prefs;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.SeekBar;
+
+/*
+ ** SideBarPreference
+ ** -
+ ** Open a dialog showing a seekbar
+ ** -
+ ** xml attrs:
+ **   android:defaultValue  Default value (float)
+ **   min                   min value (float)
+ **   max                   max value (float)
+ ** -
+ ** Summary field allow to show the current value using %f or %s flag
+ */
+public class SlideBarPreference extends DialogPreference
+  implements SeekBar.OnSeekBarChangeListener
+{
+  private static final int STEPS = 100;
+
+  private LinearLayout _layout;
+  private TextView _textView;
+  private SeekBar _seekBar;
+
+  private float _min;
+  private float _max;
+  private float _value;
+
+  private String _initialSummary;
+
+  public SlideBarPreference(Context context, AttributeSet attrs)
+  {
+    super(context, attrs);
+    _initialSummary = getSummary().toString();
+    _textView = new TextView(context);
+    _textView.setPadding(48, 40, 48, 40);
+    _seekBar = new SeekBar(context);
+    _seekBar.setOnSeekBarChangeListener(this);
+    _seekBar.setMax(STEPS);
+    _min = float_of_string(attrs.getAttributeValue(null, "min"));
+    _value = _min;
+    _max = Math.max(1f, float_of_string(attrs.getAttributeValue(null, "max")));
+    _layout = new LinearLayout(getContext());
+    _layout.setOrientation(LinearLayout.VERTICAL);
+    _layout.addView(_textView);
+    _layout.addView(_seekBar);
+  }
+
+  @Override
+  public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)
+  {
+    _value = Math.round(progress * (_max - _min)) / (float)STEPS + _min;
+    updateText();
+  }
+
+  @Override
+  public void onStartTrackingTouch(SeekBar seekBar)
+  {
+  }
+
+  @Override
+  public void onStopTrackingTouch(SeekBar seekBar)
+  {
+  }
+
+  @Override
+  protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValue)
+  {
+    if (restorePersistedValue)
+    {
+      _value = getPersistedFloat(_min);
+    }
+    else
+    {
+      _value = (Float)defaultValue;
+      persistFloat(_value);
+    }
+    _seekBar.setProgress((int)((_value - _min) * STEPS / (_max - _min)));
+    updateText();
+  }
+
+  @Override
+  protected Object onGetDefaultValue(TypedArray a, int index)
+  {
+    return (a.getFloat(index, _min));
+  }
+
+  @Override
+  protected void onDialogClosed(boolean positiveResult)
+  {
+    if (positiveResult)
+      persistFloat(_value);
+    else
+      _seekBar.setProgress((int)((getPersistedFloat(_min) - _min) * STEPS / (_max - _min)));
+
+    updateText();
+  }
+
+  protected View onCreateDialogView()
+  {
+    ViewGroup parent = (ViewGroup)_layout.getParent();
+
+    if (parent != null)
+      parent.removeView(_layout);
+    return (_layout);
+  }
+
+  private void updateText()
+  {
+    String f = String.format(_initialSummary, _value);
+
+    _textView.setText(f);
+    setSummary(f);
+  }
+
+  private static float float_of_string(String str)
+  {
+    if (str == null)
+      return (0f);
+    return (Float.parseFloat(str));
+  }
+}