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/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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.
*/
package us.minak;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.MotionEvent;
import android.gesture.GestureOverlayView;
import android.gesture.Gesture;
import android.gesture.GestureLibrary;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
public class CreateGestureActivity extends Activity {
private static final float LENGTH_THRESHOLD = 120.0f;
private Gesture mGesture;
private View mDoneButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create_gesture);
mDoneButton = findViewById(R.id.done);
GestureOverlayView overlay = (GestureOverlayView) findViewById(R.id.gestures_overlay);
overlay.addOnGestureListener(new GesturesProcessor());
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mGesture != null) {
outState.putParcelable("gesture", mGesture);
}
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mGesture = savedInstanceState.getParcelable("gesture");
if (mGesture != null) {
final GestureOverlayView overlay =
(GestureOverlayView) findViewById(R.id.gestures_overlay);
overlay.post(new Runnable() {
public void run() {
overlay.setGesture(mGesture);
}
});
mDoneButton.setEnabled(true);
}
}
public void addGesture(View v) {
if (mGesture != null) {
final TextView input = (TextView) findViewById(R.id.gesture_name);
final CharSequence name = input.getText();
if (name.length() == 0) {
input.setError(getString(R.string.error_missing_name));
return;
}
final GestureLibrary store = SettingsActivity.getStore();
store.addGesture(name.toString(), mGesture);
store.save();
setResult(RESULT_OK);
final String path = new File(Environment.getExternalStorageDirectory(),
"gestures").getAbsolutePath();
Toast.makeText(this, getString(R.string.save_success, path), Toast.LENGTH_LONG).show();
} else {
setResult(RESULT_CANCELED);
}
finish();
}
public void cancelGesture(View v) {
setResult(RESULT_CANCELED);
finish();
}
private class GesturesProcessor implements GestureOverlayView.OnGestureListener {
public void onGestureStarted(GestureOverlayView overlay, MotionEvent event) {
mDoneButton.setEnabled(false);
mGesture = null;
}
public void onGesture(GestureOverlayView overlay, MotionEvent event) {
}
public void onGestureEnded(GestureOverlayView overlay, MotionEvent event) {
mGesture = overlay.getGesture();
if (mGesture.getLength() < LENGTH_THRESHOLD) {
overlay.clear(false);
}
mDoneButton.setEnabled(true);
}
public void onGestureCancelled(GestureOverlayView overlay, MotionEvent event) {
}
}
}
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