From 665330a5eda56339a078944dbfde2efbf84d2a03 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <shumakl@purdue.edu>
Date: Sun, 4 May 2014 19:31:11 -0400
Subject: Add gesture editor (taken mostly from the SDK gesture editor)

---
 src/us/minak/CreateGestureActivity.java | 128 ++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 src/us/minak/CreateGestureActivity.java

(limited to 'src/us/minak/CreateGestureActivity.java')

diff --git a/src/us/minak/CreateGestureActivity.java b/src/us/minak/CreateGestureActivity.java
new file mode 100644
index 0000000..6844b36
--- /dev/null
+++ b/src/us/minak/CreateGestureActivity.java
@@ -0,0 +1,128 @@
+/*
+ * 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) {
+        }
+    }
+}
-- 
cgit v1.2.3