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wire new edittext to seekbar and vice-versa, including hack boolean to

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prevent loop that resets the cursor to the 0 position on every
keystroke.
This commit is contained in:
eehouse 2010-05-27 02:57:35 +00:00
parent 8c790edd04
commit 4be4a8156a
1 changed files with 62 additions and 12 deletions
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74
xwords4/android/XWords4/src/org/eehouse/android/xw4/EditColorPreference.java
View file

@ -27,33 +27,48 @@ import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.view.View;
import android.widget.SeekBar;
import android.widget.EditText;
import android.app.Dialog;
import android.content.SharedPreferences;
import android.app.AlertDialog;
import android.text.TextWatcher;
import android.text.Editable;
import junit.framework.Assert;
public class EditColorPreference extends DialogPreference {
private Context m_context;
private int m_curColor;
// m_updateText: prevent loop that resets edittext cursor
private boolean m_updateText = true;
private static final int m_seekbarIds[] = { R.id.seek_red, R.id.seek_green,
R.id.seek_blue };
private static final int m_editIds[] = { R.id.edit_red, R.id.edit_green,
R.id.edit_blue };
private class SBCL implements SeekBar.OnSeekBarChangeListener {
int m_shift;
int m_index;
View m_sample;
public SBCL( View parent, int shift )
EditText m_editTxt;
public SBCL( View parent, EditText editTxt, int indx )
{
m_shift = shift;
m_index = indx;
m_sample = parent.findViewById( R.id.color_edit_sample );
m_editTxt = editTxt;
}
public void onProgressChanged( SeekBar seekBar, int progress,
boolean fromUser )
{
if ( m_updateText ) {
m_editTxt.setText( String.format( "%d", progress ) );
}
int shift = 16 - (m_index * 8);
// mask out the byte we're changing
int color = m_curColor & ~(0xFF << m_shift);
int color = m_curColor & ~(0xFF << shift);
// add in the new version of the byte
color |= progress << m_shift;
color |= progress << shift;
m_curColor = color;
m_sample.setBackgroundColor( m_curColor );
}
@ -63,6 +78,32 @@ public class EditColorPreference extends DialogPreference {
public void onStopTrackingTouch( SeekBar seekBar ) {}
}
private class TCL implements TextWatcher {
private SeekBar m_seekBar;
public TCL( SeekBar seekBar ) { m_seekBar = seekBar; }
public void afterTextChanged( Editable s )
{
}
public void beforeTextChanged( CharSequence s, int st, int cnt, int a )
{
}
public void onTextChanged( CharSequence s, int start,
int before, int count )
{
int val;
try {
val = Integer.parseInt( s.toString() );
} catch ( java.lang.NumberFormatException nfe ) {
val = 0;
}
m_updateText = false; // don't call me recursively inside seekbar
m_seekBar.setProgress( val );
m_updateText = true;
}
}
public EditColorPreference( Context context, AttributeSet attrs )
{
super( context, attrs );
@ -96,9 +137,9 @@ public class EditColorPreference extends DialogPreference {
protected void onBindDialogView( View view )
{
m_curColor = getPersistedColor();
setOneByte( view, R.id.seek_red, 16 );
setOneByte( view, R.id.seek_green, 8 );
setOneByte( view, R.id.seek_blue, 0 );
setOneByte( view, 0 );
setOneByte( view, 1 );
setOneByte( view, 2 );
View sample = (View)view.findViewById( R.id.color_edit_sample );
sample.setBackgroundColor( m_curColor );
@ -124,14 +165,23 @@ public class EditColorPreference extends DialogPreference {
super.onPrepareDialogBuilder( builder );
}
private void setOneByte( View parent, int id, int shift )
private void setOneByte( View parent, int indx )
{
int shift = 16 - (indx*8);
int byt = (m_curColor >> shift) & 0xFF;
SeekBar seekbar = (SeekBar)parent.findViewById( id );
SeekBar seekbar = (SeekBar)parent.findViewById( m_seekbarIds[indx] );
EditText edittext = (EditText)parent.findViewById( m_editIds[indx] );
if ( null != seekbar ) {
seekbar.setProgress( byt );
seekbar.setOnSeekBarChangeListener( new SBCL( parent, shift ) );
seekbar.setOnSeekBarChangeListener( new SBCL( parent, edittext,
indx ) );
}
if ( null != edittext ) {
edittext.setText( String.format( "%d", byt ) );
edittext.addTextChangedListener( new TCL( seekbar ) );
}
}