diff options
Diffstat (limited to 'platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/RotateGestureDetector.java')
| -rw-r--r-- | platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/RotateGestureDetector.java | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/RotateGestureDetector.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/RotateGestureDetector.java deleted file mode 100644 index 8c111a68df..0000000000 --- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/almeros/android/multitouch/gesturedetectors/RotateGestureDetector.java +++ /dev/null @@ -1,180 +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 class RotateGestureDetector extends TwoFingerGestureDetector { - - /** - * Listener which must be implemented which is used by RotateGestureDetector - * to perform callbacks to any implementing class which is registered to a - * RotateGestureDetector via the constructor. - * - * @see RotateGestureDetector.SimpleOnRotateGestureListener - */ - public interface OnRotateGestureListener { - public boolean onRotate(RotateGestureDetector detector); - - public boolean onRotateBegin(RotateGestureDetector detector); - - public void onRotateEnd(RotateGestureDetector detector); - } - - /** - * Helper class which may be extended and where the methods may be - * implemented. This way it is not necessary to implement all methods of - * OnRotateGestureListener. - */ - public static class SimpleOnRotateGestureListener implements - OnRotateGestureListener { - public boolean onRotate(RotateGestureDetector detector) { - return false; - } - - public boolean onRotateBegin(RotateGestureDetector detector) { - return true; - } - - public void onRotateEnd(RotateGestureDetector detector) { - // Do nothing, overridden implementation may be used - } - } - - private final OnRotateGestureListener listener; - private boolean sloppyGesture; - - public RotateGestureDetector(Context context, - OnRotateGestureListener listener) { - super(context); - this.listener = listener; - } - - @Override - protected void handleStartProgressEvent(int actionCode, MotionEvent event) { - switch (actionCode) { - case MotionEvent.ACTION_POINTER_DOWN: - // At least the second finger is on screen now - - resetState(); // In case we missed an UP/CANCEL event - prevEvent = MotionEvent.obtain(event); - timeDelta = 0; - - updateStateByEvent(event); - - // See if we have a sloppy gesture - sloppyGesture = isSloppyGesture(event); - if (!sloppyGesture) { - // No, start gesture now - gestureInProgress = listener.onRotateBegin(this); - } - break; - - case MotionEvent.ACTION_MOVE: - if (!sloppyGesture) { - break; - } - - // See if we still have a sloppy gesture - sloppyGesture = isSloppyGesture(event); - if (!sloppyGesture) { - // No, start normal gesture now - gestureInProgress = listener.onRotateBegin(this); - } - - break; - - case MotionEvent.ACTION_POINTER_UP: - if (!sloppyGesture) { - break; - } - - break; - } - } - - @Override - protected void handleInProgressEvent(int actionCode, MotionEvent event) { - switch (actionCode) { - case MotionEvent.ACTION_POINTER_UP: - // Gesture ended but - updateStateByEvent(event); - - if (!sloppyGesture) { - listener.onRotateEnd(this); - } - - resetState(); - break; - - case MotionEvent.ACTION_CANCEL: - if (!sloppyGesture) { - listener.onRotateEnd(this); - } - - resetState(); - break; - - case MotionEvent.ACTION_MOVE: - updateStateByEvent(event); - - // Only accept the event if our relative pressure is within - // a certain limit. This can help filter shaky data as a - // finger is lifted. - if (currPressure / prevPressure > PRESSURE_THRESHOLD) { - final boolean updatePrevious = listener.onRotate(this); - if (updatePrevious) { - prevEvent.recycle(); - prevEvent = MotionEvent.obtain(event); - } - } - break; - } - } - - @Override - protected void resetState() { - super.resetState(); - sloppyGesture = false; - } - - /** - * Return the rotation difference from the previous rotate event to the - * current event. - * - * @return The current rotation //difference in degrees. - */ - public float getRotationDegreesDelta() { - double diffRadians = Math.atan2(prevFingerDiffY, prevFingerDiffX) - - Math.atan2(currFingerDiffY, currFingerDiffX); - return (float) (diffRadians * 180.0 / Math.PI); - } -} |