diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/BaseGestureDetector.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/BaseGestureDetector.java | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/BaseGestureDetector.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/BaseGestureDetector.java deleted file mode 100644 index b7bcb925a1..0000000000 --- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/BaseGestureDetector.java +++ /dev/null @@ -1,160 +0,0 @@ -package com.almeros.android.multitouch.gesturedetectors; - -import android.content.Context; -import android.view.MotionEvent; - -/** - * @author Almer Thie (code.almeros.com) Copyright (c) 2013, Almer Thie - * (code.almeros.com) - * <p> - * All rights reserved. - * <p> - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * <p> - * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * <p> - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY - * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -public abstract class BaseGestureDetector { - protected final Context context; - protected boolean gestureInProgress; - - protected MotionEvent prevEvent; - protected MotionEvent currEvent; - - protected float currPressure; - protected float prevPressure; - protected long timeDelta; - - /** - * This value is the threshold ratio between the previous combined pressure - * and the current combined pressure. When pressure decreases rapidly - * between events the position values can often be imprecise, as it usually - * indicates that the user is in the process of lifting a pointer off of the - * device. This value was tuned experimentally. - */ - protected static final float PRESSURE_THRESHOLD = 0.67f; - - public BaseGestureDetector(Context context) { - this.context = context; - } - - /** - * All gesture detectors need to be called through this method to be able to - * detect gestures. This method delegates work to handler methods - * (handleStartProgressEvent, handleInProgressEvent) implemented in - * extending classes. - * - * @param event MotionEvent - * @return {@code true} as handled - */ - public boolean onTouchEvent(MotionEvent event) { - final int actionCode = event.getAction() & MotionEvent.ACTION_MASK; - if (!gestureInProgress) { - handleStartProgressEvent(actionCode, event); - } else { - handleInProgressEvent(actionCode, event); - } - return true; - } - - /** - * Called when the current event occurred when NO gesture is in progress - * yet. The handling in this implementation may set the gesture in progress - * (via gestureInProgress) or out of progress - * - * @param actionCode Action Code from MotionEvent - * @param event MotionEvent - */ - protected abstract void handleStartProgressEvent(int actionCode, - MotionEvent event); - - /** - * Called when the current event occurred when a gesture IS in progress. The - * handling in this implementation may set the gesture out of progress (via - * gestureInProgress). - * - * @param actionCode Action Code from MotionEvent - * @param event MotionEvent - */ - protected abstract void handleInProgressEvent(int actionCode, - MotionEvent event); - - protected void updateStateByEvent(MotionEvent curr) { - final MotionEvent prev = prevEvent; - - // Reset currEvent - if (currEvent != null) { - currEvent.recycle(); - currEvent = null; - } - currEvent = MotionEvent.obtain(curr); - - // Delta time - timeDelta = curr.getEventTime() - prev.getEventTime(); - - // Pressure - currPressure = curr.getPressure(curr.getActionIndex()); - prevPressure = prev.getPressure(prev.getActionIndex()); - } - - protected void resetState() { - if (prevEvent != null) { - prevEvent.recycle(); - prevEvent = null; - } - if (currEvent != null) { - currEvent.recycle(); - currEvent = null; - } - gestureInProgress = false; - } - - /** - * Returns {@code true} if a gesture is currently in progress. - * - * @return {@code true} if a gesture is currently in progress, {@code false} - * otherwise. - */ - public boolean isInProgress() { - return gestureInProgress; - } - - /** - * Return the time difference in milliseconds between the previous accepted - * GestureDetector event and the current GestureDetector event. - * - * @return Time difference since the last move event in milliseconds. - */ - public long getTimeDelta() { - return timeDelta; - } - - /** - * Return the event time of the current GestureDetector event being - * processed. - * - * @return Current GestureDetector event time in milliseconds. - */ - public long getEventTime() { - return currEvent.getEventTime(); - } - -} |