Merge "Rename gesture related classes"
This commit is contained in:
Tadashi G. Takaoka
Android (Google) Code Review
commit
a801c8fd9b
8 changed files with 228 additions and 155 deletions
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@ -24,10 +24,10 @@ import android.view.MotionEvent;
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import com.android.inputmethod.keyboard.internal.BogusMoveEventDetector;
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import com.android.inputmethod.keyboard.internal.GestureEnabler;
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import com.android.inputmethod.keyboard.internal.GestureStroke;
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import com.android.inputmethod.keyboard.internal.GestureStrokeParams;
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import com.android.inputmethod.keyboard.internal.GestureStrokePreviewParams;
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import com.android.inputmethod.keyboard.internal.GestureStrokeWithPreviewPoints;
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import com.android.inputmethod.keyboard.internal.GestureStrokeDrawingParams;
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import com.android.inputmethod.keyboard.internal.GestureStrokeDrawingPoints;
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import com.android.inputmethod.keyboard.internal.GestureStrokeRecognitionParams;
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import com.android.inputmethod.keyboard.internal.GestureStrokeRecognitionPoints;
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import com.android.inputmethod.keyboard.internal.PointerTrackerQueue;
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import com.android.inputmethod.keyboard.internal.TypingTimeRecorder;
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import com.android.inputmethod.latin.Constants;
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@ -135,8 +135,8 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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// Parameters for pointer handling.
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private static PointerTrackerParams sParams;
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private static GestureStrokeParams sGestureStrokeParams;
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private static GestureStrokePreviewParams sGesturePreviewParams;
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private static GestureStrokeRecognitionParams sGestureStrokeRecognitionParams;
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private static GestureStrokeDrawingParams sGestureStrokeDrawingParams;
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private static boolean sNeedsPhantomSuddenMoveEventHack;
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// Move this threshold to resource.
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// TODO: Device specific parameter would be better for device specific hack?
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@ -163,7 +163,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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private static long sGestureFirstDownTime;
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private static TypingTimeRecorder sTypingTimeRecorder;
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private static final InputPointers sAggregatedPointers = new InputPointers(
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GestureStroke.DEFAULT_CAPACITY);
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GestureStrokeRecognitionPoints.DEFAULT_CAPACITY);
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private static int sLastRecognitionPointSize = 0; // synchronized using sAggregatedPointers
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private static long sLastRecognitionTime = 0; // synchronized using sAggregatedPointers
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@ -203,16 +203,16 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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// true if dragging finger is allowed.
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private boolean mIsAllowedDraggingFinger;
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private final GestureStrokeWithPreviewPoints mGestureStrokeWithPreviewPoints;
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private final GestureStrokeDrawingPoints mGestureStrokeDrawingPoints;
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// TODO: Add PointerTrackerFactory singleton and move some class static methods into it.
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public static void init(final TypedArray mainKeyboardViewAttr, final TimerProxy timerProxy,
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final DrawingProxy drawingProxy) {
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sParams = new PointerTrackerParams(mainKeyboardViewAttr);
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sGestureStrokeParams = new GestureStrokeParams(mainKeyboardViewAttr);
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sGesturePreviewParams = new GestureStrokePreviewParams(mainKeyboardViewAttr);
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sGestureStrokeRecognitionParams = new GestureStrokeRecognitionParams(mainKeyboardViewAttr);
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sGestureStrokeDrawingParams = new GestureStrokeDrawingParams(mainKeyboardViewAttr);
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sTypingTimeRecorder = new TypingTimeRecorder(
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sGestureStrokeParams.mStaticTimeThresholdAfterFastTyping,
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sGestureStrokeRecognitionParams.mStaticTimeThresholdAfterFastTyping,
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sParams.mSuppressKeyPreviewAfterBatchInputDuration);
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final Resources res = mainKeyboardViewAttr.getResources();
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@ -286,8 +286,8 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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private PointerTracker(final int id) {
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mPointerId = id;
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mGestureStrokeWithPreviewPoints = new GestureStrokeWithPreviewPoints(
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id, sGestureStrokeParams, sGesturePreviewParams);
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mGestureStrokeDrawingPoints = new GestureStrokeDrawingPoints(
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id, sGestureStrokeRecognitionParams, sGestureStrokeDrawingParams);
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}
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// Returns true if keyboard has been changed by this callback.
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@ -408,7 +408,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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mKeyboardLayoutHasBeenChanged = true;
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final int keyWidth = mKeyboard.mMostCommonKeyWidth;
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final int keyHeight = mKeyboard.mMostCommonKeyHeight;
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mGestureStrokeWithPreviewPoints.setKeyboardGeometry(keyWidth, mKeyboard.mOccupiedHeight);
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mGestureStrokeDrawingPoints.setKeyboardGeometry(keyWidth, mKeyboard.mOccupiedHeight);
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final Key newKey = mKeyDetector.detectHitKey(mKeyX, mKeyY);
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if (newKey != mCurrentKey) {
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if (sDrawingProxy != null) {
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@ -523,8 +523,8 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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sDrawingProxy.invalidateKey(key);
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}
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public GestureStrokeWithPreviewPoints getGestureStrokeWithPreviewPoints() {
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return mGestureStrokeWithPreviewPoints;
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public GestureStrokeDrawingPoints getGestureStrokeDrawingPoints() {
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return mGestureStrokeDrawingPoints;
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}
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public void getLastCoordinates(final int[] outCoords) {
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@ -581,7 +581,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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* @return true if the batch input has started successfully.
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*/
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private boolean mayStartBatchInput() {
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if (!mGestureStrokeWithPreviewPoints.isStartOfAGesture()) {
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if (!mGestureStrokeDrawingPoints.isStartOfAGesture()) {
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return false;
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}
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if (DEBUG_LISTENER) {
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@ -609,13 +609,13 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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public void updateBatchInputByTimer(final long syntheticMoveEventTime) {
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final int gestureTime = (int)(syntheticMoveEventTime - sGestureFirstDownTime);
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mGestureStrokeWithPreviewPoints.duplicateLastPointWith(gestureTime);
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mGestureStrokeDrawingPoints.duplicateLastPointWith(gestureTime);
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updateBatchInput(syntheticMoveEventTime);
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}
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private void updateBatchInput(final long moveEventTime) {
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synchronized (sAggregatedPointers) {
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final GestureStroke stroke = mGestureStrokeWithPreviewPoints;
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final GestureStrokeRecognitionPoints stroke = mGestureStrokeDrawingPoints;
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stroke.appendIncrementalBatchPoints(sAggregatedPointers);
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final int size = sAggregatedPointers.getPointerSize();
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if (size > sLastRecognitionPointSize
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@ -642,7 +642,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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private boolean mayEndBatchInput(final long upEventTime) {
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boolean hasEndBatchInputSuccessfully = false;
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synchronized (sAggregatedPointers) {
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mGestureStrokeWithPreviewPoints.appendAllBatchPoints(sAggregatedPointers);
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mGestureStrokeDrawingPoints.appendAllBatchPoints(sAggregatedPointers);
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if (getActivePointerTrackerCount() == 1) {
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hasEndBatchInputSuccessfully = true;
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sTypingTimeRecorder.onEndBatchInput(upEventTime);
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@ -754,7 +754,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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if (getActivePointerTrackerCount() == 1) {
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sGestureFirstDownTime = eventTime;
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}
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mGestureStrokeWithPreviewPoints.onDownEvent(x, y, eventTime, sGestureFirstDownTime,
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mGestureStrokeDrawingPoints.onDownEvent(x, y, eventTime, sGestureFirstDownTime,
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sTypingTimeRecorder.getLastLetterTypingTime());
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}
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}
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@ -814,11 +814,11 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
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if (!mIsDetectingGesture) {
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return;
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}
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final int beforeLength = mGestureStrokeWithPreviewPoints.getLength();
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final int beforeLength = mGestureStrokeDrawingPoints.getLength();
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final int gestureTime = (int)(eventTime - sGestureFirstDownTime);
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final boolean onValidArea = mGestureStrokeWithPreviewPoints.addPointOnKeyboard(
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final boolean onValidArea = mGestureStrokeDrawingPoints.addPointOnKeyboard(
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x, y, gestureTime, isMajorEvent);
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if (mGestureStrokeWithPreviewPoints.getLength() > beforeLength) {
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if (mGestureStrokeDrawingPoints.getLength() > beforeLength) {
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sTimerProxy.startUpdateBatchInputTimer(this);
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}
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// If the move event goes out from valid batch input area, cancel batch input.
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@ -20,7 +20,15 @@ import android.content.res.TypedArray;
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import com.android.inputmethod.latin.R;
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public final class GestureStrokePreviewParams {
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/**
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* This class holds parameters to control how a gesture stroke is sampled and drawn on the screen.
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*
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* @attr ref R.styleable#MainKeyboardView_gestureTrailMinSamplingDistance
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* @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationAngularThreshold
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* @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationDistanceThreshold
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* @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationSegments
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*/
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public final class GestureStrokeDrawingParams {
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public final double mMinSamplingDistance; // in pixel
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public final double mMaxInterpolationAngularThreshold; // in radian
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public final double mMaxInterpolationDistanceThreshold; // in pixel
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@ -31,7 +39,7 @@ public final class GestureStrokePreviewParams {
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private static final float DEFAULT_MAX_INTERPOLATION_DISTANCE_THRESHOLD = 0.0f; // dp
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private static final int DEFAULT_MAX_INTERPOLATION_SEGMENTS = 4;
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public GestureStrokePreviewParams(final TypedArray mainKeyboardViewAttr) {
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public GestureStrokeDrawingParams(final TypedArray mainKeyboardViewAttr) {
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mMinSamplingDistance = mainKeyboardViewAttr.getDimension(
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R.styleable.MainKeyboardView_gestureTrailMinSamplingDistance,
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DEFAULT_MIN_SAMPLING_DISTANCE);
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@ -18,14 +18,20 @@ package com.android.inputmethod.keyboard.internal;
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import com.android.inputmethod.latin.utils.ResizableIntArray;
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public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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/**
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* This class holds drawing points to represent a gesture stroke on the screen.
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* TODO: Currently this class extends {@link GestureStrokeRecognitionPoints} that holds recognition
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* points of a gesture stroke. This class should be independent from
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* {@link GestureStrokeRecognitionPoints}.
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*/
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public final class GestureStrokeDrawingPoints extends GestureStrokeRecognitionPoints {
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public static final int PREVIEW_CAPACITY = 256;
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private final ResizableIntArray mPreviewEventTimes = new ResizableIntArray(PREVIEW_CAPACITY);
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private final ResizableIntArray mPreviewXCoordinates = new ResizableIntArray(PREVIEW_CAPACITY);
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private final ResizableIntArray mPreviewYCoordinates = new ResizableIntArray(PREVIEW_CAPACITY);
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private final GestureStrokePreviewParams mPreviewParams;
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private final GestureStrokeDrawingParams mDrawingParams;
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private int mStrokeId;
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private int mLastPreviewSize;
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@ -36,11 +42,11 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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private int mLastY;
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private double mDistanceFromLastSample;
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public GestureStrokeWithPreviewPoints(final int pointerId,
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final GestureStrokeParams strokeParams,
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final GestureStrokePreviewParams previewParams) {
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super(pointerId, strokeParams);
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mPreviewParams = previewParams;
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public GestureStrokeDrawingPoints(final int pointerId,
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final GestureStrokeRecognitionParams recognitionParams,
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final GestureStrokeDrawingParams drawingParams) {
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super(pointerId, recognitionParams);
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mDrawingParams = drawingParams;
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}
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@Override
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@ -63,7 +69,7 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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mLastX = x;
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mLastY = y;
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final boolean isDownEvent = (mPreviewEventTimes.getLength() == 0);
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if (mDistanceFromLastSample >= mPreviewParams.mMinSamplingDistance || isDownEvent) {
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if (mDistanceFromLastSample >= mDrawingParams.mMinSamplingDistance || isDownEvent) {
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mDistanceFromLastSample = 0.0d;
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return true;
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}
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@ -89,7 +95,7 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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* @param xCoords the x-coordinates array of gesture trail to be drawn.
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* @param yCoords the y-coordinates array of gesture trail to be drawn.
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* @param types the point types array of gesture trail. This is valid only when
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* {@link GestureTrail#DEBUG_SHOW_POINTS} is true.
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* {@link GestureTrailDrawingPoints#DEBUG_SHOW_POINTS} is true.
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*/
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public void appendPreviewStroke(final ResizableIntArray eventTimes,
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final ResizableIntArray xCoords, final ResizableIntArray yCoords,
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@ -101,8 +107,8 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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eventTimes.append(mPreviewEventTimes, mLastPreviewSize, length);
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xCoords.append(mPreviewXCoordinates, mLastPreviewSize, length);
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yCoords.append(mPreviewYCoordinates, mLastPreviewSize, length);
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if (GestureTrail.DEBUG_SHOW_POINTS) {
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types.fill(GestureTrail.POINT_TYPE_SAMPLED, types.getLength(), length);
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if (GestureTrailDrawingPoints.DEBUG_SHOW_POINTS) {
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types.fill(GestureTrailDrawingPoints.POINT_TYPE_SAMPLED, types.getLength(), length);
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}
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mLastPreviewSize = mPreviewEventTimes.getLength();
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}
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@ -119,7 +125,7 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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* @param xCoords the x-coordinates array of gesture trail to be drawn.
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* @param yCoords the y-coordinates array of gesture trail to be drawn.
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* @param types the point types array of gesture trail. This is valid only when
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* {@link GestureTrail#DEBUG_SHOW_POINTS} is true.
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* {@link GestureTrailDrawingPoints#DEBUG_SHOW_POINTS} is true.
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* @return the start index of the last interpolated segment of input arrays.
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*/
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public int interpolateStrokeAndReturnStartIndexOfLastSegment(final int lastInterpolatedIndex,
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@ -145,12 +151,12 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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final double m2 = Math.atan2(mInterpolator.mSlope2Y, mInterpolator.mSlope2X);
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final double deltaAngle = Math.abs(angularDiff(m2, m1));
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final int segmentsByAngle = (int)Math.ceil(
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deltaAngle / mPreviewParams.mMaxInterpolationAngularThreshold);
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deltaAngle / mDrawingParams.mMaxInterpolationAngularThreshold);
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final double deltaDistance = Math.hypot(mInterpolator.mP1X - mInterpolator.mP2X,
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mInterpolator.mP1Y - mInterpolator.mP2Y);
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final int segmentsByDistance = (int)Math.ceil(deltaDistance
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/ mPreviewParams.mMaxInterpolationDistanceThreshold);
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final int segments = Math.min(mPreviewParams.mMaxInterpolationSegments,
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/ mDrawingParams.mMaxInterpolationDistanceThreshold);
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final int segments = Math.min(mDrawingParams.mMaxInterpolationSegments,
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Math.max(segmentsByAngle, segmentsByDistance));
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final int t1 = eventTimes.get(d1);
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final int dt = pt[p2] - pt[p1];
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@ -161,16 +167,16 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
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eventTimes.add(d1, (int)(dt * t) + t1);
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xCoords.add(d1, (int)mInterpolator.mInterpolatedX);
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yCoords.add(d1, (int)mInterpolator.mInterpolatedY);
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if (GestureTrail.DEBUG_SHOW_POINTS) {
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types.add(d1, GestureTrail.POINT_TYPE_INTERPOLATED);
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if (GestureTrailDrawingPoints.DEBUG_SHOW_POINTS) {
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types.add(d1, GestureTrailDrawingPoints.POINT_TYPE_INTERPOLATED);
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}
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d1++;
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}
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eventTimes.add(d1, pt[p2]);
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xCoords.add(d1, px[p2]);
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yCoords.add(d1, py[p2]);
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if (GestureTrail.DEBUG_SHOW_POINTS) {
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types.add(d1, GestureTrail.POINT_TYPE_SAMPLED);
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if (GestureTrailDrawingPoints.DEBUG_SHOW_POINTS) {
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types.add(d1, GestureTrailDrawingPoints.POINT_TYPE_SAMPLED);
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}
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}
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return lastInterpolatedDrawIndex;
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@ -21,7 +21,22 @@ import android.content.res.TypedArray;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.utils.ResourceUtils;
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public final class GestureStrokeParams {
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/**
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* This class holds parameters to control how a gesture stroke is sampled and recognized.
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* This class also has parameters to distinguish gesture input events from fast typing events.
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*
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* @attr ref R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
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* @attr ref R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
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* @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
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* @attr ref R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
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* @attr ref R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
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* @attr ref R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
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*/
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public final class GestureStrokeRecognitionParams {
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// Static threshold for gesture after fast typing
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public final int mStaticTimeThresholdAfterFastTyping; // msec
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// Static threshold for starting gesture detection
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@ -40,10 +55,11 @@ public final class GestureStrokeParams {
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public final int mRecognitionMinimumTime; // msec
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public final float mRecognitionSpeedThreshold; // keyWidth/sec
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// Default GestureStroke parameters.
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public static final GestureStrokeParams DEFAULT = new GestureStrokeParams();
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// Default GestureStrokeRecognitionPoints parameters.
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public static final GestureStrokeRecognitionParams DEFAULT =
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new GestureStrokeRecognitionParams();
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private GestureStrokeParams() {
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private GestureStrokeRecognitionParams() {
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// These parameter values are default and intended for testing.
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mStaticTimeThresholdAfterFastTyping = 350; // msec
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mDetectFastMoveSpeedThreshold = 1.5f; // keyWidth/sec
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@ -58,7 +74,7 @@ public final class GestureStrokeParams {
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mRecognitionSpeedThreshold = 5.5f; // keyWidth/sec
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}
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public GestureStrokeParams(final TypedArray mainKeyboardViewAttr) {
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public GestureStrokeRecognitionParams(final TypedArray mainKeyboardViewAttr) {
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mStaticTimeThresholdAfterFastTyping = mainKeyboardViewAttr.getInt(
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R.styleable.MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping,
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DEFAULT.mStaticTimeThresholdAfterFastTyping);
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@ -21,8 +21,12 @@ import android.util.Log;
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import com.android.inputmethod.latin.InputPointers;
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import com.android.inputmethod.latin.utils.ResizableIntArray;
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public class GestureStroke {
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private static final String TAG = GestureStroke.class.getSimpleName();
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/**
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* This class holds event points to recognize a gesture stroke.
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* TODO: Should be final and package private class.
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*/
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public class GestureStrokeRecognitionPoints {
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private static final String TAG = GestureStrokeRecognitionPoints.class.getSimpleName();
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private static final boolean DEBUG = false;
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private static final boolean DEBUG_SPEED = false;
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@ -37,7 +41,7 @@ public class GestureStroke {
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private final ResizableIntArray mXCoordinates = new ResizableIntArray(DEFAULT_CAPACITY);
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private final ResizableIntArray mYCoordinates = new ResizableIntArray(DEFAULT_CAPACITY);
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private final GestureStrokeParams mParams;
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private final GestureStrokeRecognitionParams mRecognitionParams;
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private int mKeyWidth; // pixel
|
||||
private int mMinYCoordinate; // pixel
|
||||
|
|
@ -63,9 +67,10 @@ public class GestureStroke {
|
|||
|
||||
private static final int MSEC_PER_SEC = 1000;
|
||||
|
||||
public GestureStroke(final int pointerId, final GestureStrokeParams params) {
|
||||
public GestureStrokeRecognitionPoints(final int pointerId,
|
||||
final GestureStrokeRecognitionParams recognitionParams) {
|
||||
mPointerId = pointerId;
|
||||
mParams = params;
|
||||
mRecognitionParams = recognitionParams;
|
||||
}
|
||||
|
||||
public void setKeyboardGeometry(final int keyWidth, final int keyboardHeight) {
|
||||
|
|
@ -73,18 +78,22 @@ public class GestureStroke {
|
|||
mMinYCoordinate = -(int)(keyboardHeight * EXTRA_GESTURE_TRAIL_AREA_ABOVE_KEYBOARD_RATIO);
|
||||
mMaxYCoordinate = keyboardHeight;
|
||||
// TODO: Find an appropriate base metric for these length. Maybe diagonal length of the key?
|
||||
mDetectFastMoveSpeedThreshold = (int)(keyWidth * mParams.mDetectFastMoveSpeedThreshold);
|
||||
mGestureDynamicDistanceThresholdFrom =
|
||||
(int)(keyWidth * mParams.mDynamicDistanceThresholdFrom);
|
||||
mGestureDynamicDistanceThresholdTo = (int)(keyWidth * mParams.mDynamicDistanceThresholdTo);
|
||||
mGestureSamplingMinimumDistance = (int)(keyWidth * mParams.mSamplingMinimumDistance);
|
||||
mGestureRecognitionSpeedThreshold = (int)(keyWidth * mParams.mRecognitionSpeedThreshold);
|
||||
mDetectFastMoveSpeedThreshold = (int)(
|
||||
keyWidth * mRecognitionParams.mDetectFastMoveSpeedThreshold);
|
||||
mGestureDynamicDistanceThresholdFrom = (int)(
|
||||
keyWidth * mRecognitionParams.mDynamicDistanceThresholdFrom);
|
||||
mGestureDynamicDistanceThresholdTo = (int)(
|
||||
keyWidth * mRecognitionParams.mDynamicDistanceThresholdTo);
|
||||
mGestureSamplingMinimumDistance = (int)(
|
||||
keyWidth * mRecognitionParams.mSamplingMinimumDistance);
|
||||
mGestureRecognitionSpeedThreshold = (int)(
|
||||
keyWidth * mRecognitionParams.mRecognitionSpeedThreshold);
|
||||
if (DEBUG) {
|
||||
Log.d(TAG, String.format(
|
||||
"[%d] setKeyboardGeometry: keyWidth=%3d tT=%3d >> %3d tD=%3d >> %3d",
|
||||
mPointerId, keyWidth,
|
||||
mParams.mDynamicTimeThresholdFrom,
|
||||
mParams.mDynamicTimeThresholdTo,
|
||||
mRecognitionParams.mDynamicTimeThresholdFrom,
|
||||
mRecognitionParams.mDynamicTimeThresholdTo,
|
||||
mGestureDynamicDistanceThresholdFrom,
|
||||
mGestureDynamicDistanceThresholdTo));
|
||||
}
|
||||
|
|
@ -98,7 +107,7 @@ public class GestureStroke {
|
|||
final long gestureFirstDownTime, final long lastTypingTime) {
|
||||
reset();
|
||||
final long elapsedTimeAfterTyping = downTime - lastTypingTime;
|
||||
if (elapsedTimeAfterTyping < mParams.mStaticTimeThresholdAfterFastTyping) {
|
||||
if (elapsedTimeAfterTyping < mRecognitionParams.mStaticTimeThresholdAfterFastTyping) {
|
||||
mAfterFastTyping = true;
|
||||
}
|
||||
if (DEBUG) {
|
||||
|
|
@ -110,23 +119,24 @@ public class GestureStroke {
|
|||
}
|
||||
|
||||
private int getGestureDynamicDistanceThreshold(final int deltaTime) {
|
||||
if (!mAfterFastTyping || deltaTime >= mParams.mDynamicThresholdDecayDuration) {
|
||||
if (!mAfterFastTyping || deltaTime >= mRecognitionParams.mDynamicThresholdDecayDuration) {
|
||||
return mGestureDynamicDistanceThresholdTo;
|
||||
}
|
||||
final int decayedThreshold =
|
||||
(mGestureDynamicDistanceThresholdFrom - mGestureDynamicDistanceThresholdTo)
|
||||
* deltaTime / mParams.mDynamicThresholdDecayDuration;
|
||||
* deltaTime / mRecognitionParams.mDynamicThresholdDecayDuration;
|
||||
return mGestureDynamicDistanceThresholdFrom - decayedThreshold;
|
||||
}
|
||||
|
||||
private int getGestureDynamicTimeThreshold(final int deltaTime) {
|
||||
if (!mAfterFastTyping || deltaTime >= mParams.mDynamicThresholdDecayDuration) {
|
||||
return mParams.mDynamicTimeThresholdTo;
|
||||
if (!mAfterFastTyping || deltaTime >= mRecognitionParams.mDynamicThresholdDecayDuration) {
|
||||
return mRecognitionParams.mDynamicTimeThresholdTo;
|
||||
}
|
||||
final int decayedThreshold =
|
||||
(mParams.mDynamicTimeThresholdFrom - mParams.mDynamicTimeThresholdTo)
|
||||
* deltaTime / mParams.mDynamicThresholdDecayDuration;
|
||||
return mParams.mDynamicTimeThresholdFrom - decayedThreshold;
|
||||
(mRecognitionParams.mDynamicTimeThresholdFrom
|
||||
- mRecognitionParams.mDynamicTimeThresholdTo)
|
||||
* deltaTime / mRecognitionParams.mDynamicThresholdDecayDuration;
|
||||
return mRecognitionParams.mDynamicTimeThresholdFrom - decayedThreshold;
|
||||
}
|
||||
|
||||
public final boolean isStartOfAGesture() {
|
||||
|
|
@ -285,7 +295,7 @@ public class GestureStroke {
|
|||
|
||||
public final boolean hasRecognitionTimePast(
|
||||
final long currentTime, final long lastRecognitionTime) {
|
||||
return currentTime > lastRecognitionTime + mParams.mRecognitionMinimumTime;
|
||||
return currentTime > lastRecognitionTime + mRecognitionParams.mRecognitionMinimumTime;
|
||||
}
|
||||
|
||||
public final void appendAllBatchPoints(final InputPointers out) {
|
||||
|
|
@ -307,10 +317,6 @@ public class GestureStroke {
|
|||
}
|
||||
|
||||
private static int getDistance(final int x1, final int y1, final int x2, final int y2) {
|
||||
final int dx = x1 - x2;
|
||||
final int dy = y1 - y2;
|
||||
// Note that, in recent versions of Android, FloatMath is actually slower than
|
||||
// java.lang.Math due to the way the JIT optimizes java.lang.Math.
|
||||
return (int)Math.sqrt(dx * dx + dy * dy);
|
||||
return (int)Math.hypot(x1 - x2, y1 - y2);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,79 @@
|
|||
/*
|
||||
* Copyright (C) 2013 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 com.android.inputmethod.keyboard.internal;
|
||||
|
||||
import android.content.res.TypedArray;
|
||||
|
||||
import com.android.inputmethod.latin.R;
|
||||
|
||||
/**
|
||||
* This class holds parameters to control how a gesture trail is drawn and animated on the screen.
|
||||
*
|
||||
* On the other hand, {@link GestureStrokeDrawingParams} class controls how each gesture stroke is
|
||||
* sampled and interpolated. This class controls how those gesture strokes are displayed as a
|
||||
* gesture trail and animated on the screen.
|
||||
*
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutStartDelay
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutDuration
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailUpdateInterval
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailColor
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailWidth
|
||||
*/
|
||||
final class GestureTrailDrawingParams {
|
||||
private static final int FADEOUT_START_DELAY_FOR_DEBUG = 2000; // millisecond
|
||||
private static final int FADEOUT_DURATION_FOR_DEBUG = 200; // millisecond
|
||||
|
||||
public final int mTrailColor;
|
||||
public final float mTrailStartWidth;
|
||||
public final float mTrailEndWidth;
|
||||
public final float mTrailBodyRatio;
|
||||
public boolean mTrailShadowEnabled;
|
||||
public final float mTrailShadowRatio;
|
||||
public final int mFadeoutStartDelay;
|
||||
public final int mFadeoutDuration;
|
||||
public final int mUpdateInterval;
|
||||
|
||||
public final int mTrailLingerDuration;
|
||||
|
||||
public GestureTrailDrawingParams(final TypedArray mainKeyboardViewAttr) {
|
||||
mTrailColor = mainKeyboardViewAttr.getColor(
|
||||
R.styleable.MainKeyboardView_gestureTrailColor, 0);
|
||||
mTrailStartWidth = mainKeyboardViewAttr.getDimension(
|
||||
R.styleable.MainKeyboardView_gestureTrailStartWidth, 0.0f);
|
||||
mTrailEndWidth = mainKeyboardViewAttr.getDimension(
|
||||
R.styleable.MainKeyboardView_gestureTrailEndWidth, 0.0f);
|
||||
final int PERCENTAGE_INT = 100;
|
||||
mTrailBodyRatio = (float)mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailBodyRatio, PERCENTAGE_INT)
|
||||
/ (float)PERCENTAGE_INT;
|
||||
final int trailShadowRatioInt = mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailShadowRatio, 0);
|
||||
mTrailShadowEnabled = (trailShadowRatioInt > 0);
|
||||
mTrailShadowRatio = (float)trailShadowRatioInt / (float)PERCENTAGE_INT;
|
||||
mFadeoutStartDelay = GestureTrailDrawingPoints.DEBUG_SHOW_POINTS
|
||||
? FADEOUT_START_DELAY_FOR_DEBUG
|
||||
: mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailFadeoutStartDelay, 0);
|
||||
mFadeoutDuration = GestureTrailDrawingPoints.DEBUG_SHOW_POINTS
|
||||
? FADEOUT_DURATION_FOR_DEBUG
|
||||
: mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailFadeoutDuration, 0);
|
||||
mTrailLingerDuration = mFadeoutStartDelay + mFadeoutDuration;
|
||||
mUpdateInterval = mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailUpdateInterval, 0);
|
||||
}
|
||||
}
|
||||
|
|
@ -16,7 +16,6 @@
|
|||
|
||||
package com.android.inputmethod.keyboard.internal;
|
||||
|
||||
import android.content.res.TypedArray;
|
||||
import android.graphics.Canvas;
|
||||
import android.graphics.Color;
|
||||
import android.graphics.Paint;
|
||||
|
|
@ -25,24 +24,22 @@ import android.graphics.Rect;
|
|||
import android.os.SystemClock;
|
||||
|
||||
import com.android.inputmethod.latin.Constants;
|
||||
import com.android.inputmethod.latin.R;
|
||||
import com.android.inputmethod.latin.utils.ResizableIntArray;
|
||||
|
||||
/*
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutStartDelay
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutDuration
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailUpdateInterval
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailColor
|
||||
* @attr ref R.styleable#MainKeyboardView_gestureTrailWidth
|
||||
/**
|
||||
* This class holds drawing points to represent a gesture trail. The gesture trail may contain
|
||||
* multiple non-contiguous gesture strokes and will be animated asynchronously from gesture input.
|
||||
*
|
||||
* On the other hand, {@link GestureStrokeDrawingPoints} class holds drawing points of each gesture
|
||||
* stroke. This class holds drawing points of those gesture strokes to draw as a gesture trail.
|
||||
* Drawing points in this class will be asynchronously removed when fading out animation goes.
|
||||
*/
|
||||
final class GestureTrail {
|
||||
final class GestureTrailDrawingPoints {
|
||||
public static final boolean DEBUG_SHOW_POINTS = false;
|
||||
public static final int POINT_TYPE_SAMPLED = 1;
|
||||
public static final int POINT_TYPE_INTERPOLATED = 2;
|
||||
private static final int FADEOUT_START_DELAY_FOR_DEBUG = 2000; // millisecond
|
||||
private static final int FADEOUT_DURATION_FOR_DEBUG = 200; // millisecond
|
||||
|
||||
private static final int DEFAULT_CAPACITY = GestureStrokeWithPreviewPoints.PREVIEW_CAPACITY;
|
||||
private static final int DEFAULT_CAPACITY = GestureStrokeDrawingPoints.PREVIEW_CAPACITY;
|
||||
|
||||
// These three {@link ResizableIntArray}s should be synchronized by {@link #mEventTimes}.
|
||||
private final ResizableIntArray mXCoordinates = new ResizableIntArray(DEFAULT_CAPACITY);
|
||||
|
|
@ -56,46 +53,6 @@ final class GestureTrail {
|
|||
private int mTrailStartIndex;
|
||||
private int mLastInterpolatedDrawIndex;
|
||||
|
||||
static final class Params {
|
||||
public final int mTrailColor;
|
||||
public final float mTrailStartWidth;
|
||||
public final float mTrailEndWidth;
|
||||
public final float mTrailBodyRatio;
|
||||
public boolean mTrailShadowEnabled;
|
||||
public final float mTrailShadowRatio;
|
||||
public final int mFadeoutStartDelay;
|
||||
public final int mFadeoutDuration;
|
||||
public final int mUpdateInterval;
|
||||
|
||||
public final int mTrailLingerDuration;
|
||||
|
||||
public Params(final TypedArray mainKeyboardViewAttr) {
|
||||
mTrailColor = mainKeyboardViewAttr.getColor(
|
||||
R.styleable.MainKeyboardView_gestureTrailColor, 0);
|
||||
mTrailStartWidth = mainKeyboardViewAttr.getDimension(
|
||||
R.styleable.MainKeyboardView_gestureTrailStartWidth, 0.0f);
|
||||
mTrailEndWidth = mainKeyboardViewAttr.getDimension(
|
||||
R.styleable.MainKeyboardView_gestureTrailEndWidth, 0.0f);
|
||||
final int PERCENTAGE_INT = 100;
|
||||
mTrailBodyRatio = (float)mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailBodyRatio, PERCENTAGE_INT)
|
||||
/ (float)PERCENTAGE_INT;
|
||||
final int trailShadowRatioInt = mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailShadowRatio, 0);
|
||||
mTrailShadowEnabled = (trailShadowRatioInt > 0);
|
||||
mTrailShadowRatio = (float)trailShadowRatioInt / (float)PERCENTAGE_INT;
|
||||
mFadeoutStartDelay = DEBUG_SHOW_POINTS ? FADEOUT_START_DELAY_FOR_DEBUG
|
||||
: mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailFadeoutStartDelay, 0);
|
||||
mFadeoutDuration = DEBUG_SHOW_POINTS ? FADEOUT_DURATION_FOR_DEBUG
|
||||
: mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailFadeoutDuration, 0);
|
||||
mTrailLingerDuration = mFadeoutStartDelay + mFadeoutDuration;
|
||||
mUpdateInterval = mainKeyboardViewAttr.getInt(
|
||||
R.styleable.MainKeyboardView_gestureTrailUpdateInterval, 0);
|
||||
}
|
||||
}
|
||||
|
||||
// Use this value as imaginary zero because x-coordinates may be zero.
|
||||
private static final int DOWN_EVENT_MARKER = -128;
|
||||
|
||||
|
|
@ -112,13 +69,13 @@ final class GestureTrail {
|
|||
? DOWN_EVENT_MARKER - xCoordOrMark : xCoordOrMark;
|
||||
}
|
||||
|
||||
public void addStroke(final GestureStrokeWithPreviewPoints stroke, final long downTime) {
|
||||
public void addStroke(final GestureStrokeDrawingPoints stroke, final long downTime) {
|
||||
synchronized (mEventTimes) {
|
||||
addStrokeLocked(stroke, downTime);
|
||||
}
|
||||
}
|
||||
|
||||
private void addStrokeLocked(final GestureStrokeWithPreviewPoints stroke, final long downTime) {
|
||||
private void addStrokeLocked(final GestureStrokeDrawingPoints stroke, final long downTime) {
|
||||
final int trailSize = mEventTimes.getLength();
|
||||
stroke.appendPreviewStroke(mEventTimes, mXCoordinates, mYCoordinates, mPointTypes);
|
||||
if (mEventTimes.getLength() == trailSize) {
|
||||
|
|
@ -126,13 +83,14 @@ final class GestureTrail {
|
|||
}
|
||||
final int[] eventTimes = mEventTimes.getPrimitiveArray();
|
||||
final int strokeId = stroke.getGestureStrokeId();
|
||||
// Because interpolation algorithm in {@link GestureStrokeWithPreviewPoints} can't determine
|
||||
// Because interpolation algorithm in {@link GestureStrokeDrawingPoints} can't determine
|
||||
// the interpolated points in the last segment of gesture stroke, it may need recalculation
|
||||
// of interpolation when new segments are added to the stroke.
|
||||
// {@link #mLastInterpolatedDrawIndex} holds the start index of the last segment. It may
|
||||
// be updated by the interpolation
|
||||
// {@link GestureStrokeWithPreviewPoints#interpolatePreviewStroke}
|
||||
// or by animation {@link #drawGestureTrail(Canvas,Paint,Rect,Params)} below.
|
||||
// {@link GestureStrokeDrawingPoints#interpolatePreviewStroke}
|
||||
// or by animation {@link #drawGestureTrail(Canvas,Paint,Rect,GestureTrailDrawingParams)}
|
||||
// below.
|
||||
final int lastInterpolatedIndex = (strokeId == mCurrentStrokeId)
|
||||
? mLastInterpolatedDrawIndex : trailSize;
|
||||
mLastInterpolatedDrawIndex = stroke.interpolateStrokeAndReturnStartIndexOfLastSegment(
|
||||
|
|
@ -161,7 +119,7 @@ final class GestureTrail {
|
|||
* @param params gesture trail display parameters
|
||||
* @return the width of a gesture trail
|
||||
*/
|
||||
private static int getAlpha(final int elapsedTime, final Params params) {
|
||||
private static int getAlpha(final int elapsedTime, final GestureTrailDrawingParams params) {
|
||||
if (elapsedTime < params.mFadeoutStartDelay) {
|
||||
return Constants.Color.ALPHA_OPAQUE;
|
||||
}
|
||||
|
|
@ -180,7 +138,7 @@ final class GestureTrail {
|
|||
* @param params gesture trail display parameters
|
||||
* @return the width of a gesture trail
|
||||
*/
|
||||
private static float getWidth(final int elapsedTime, final Params params) {
|
||||
private static float getWidth(final int elapsedTime, final GestureTrailDrawingParams params) {
|
||||
final float deltaWidth = params.mTrailStartWidth - params.mTrailEndWidth;
|
||||
return params.mTrailStartWidth - (deltaWidth * elapsedTime) / params.mTrailLingerDuration;
|
||||
}
|
||||
|
|
@ -197,14 +155,14 @@ final class GestureTrail {
|
|||
* @return true if some gesture trails remain to be drawn
|
||||
*/
|
||||
public boolean drawGestureTrail(final Canvas canvas, final Paint paint,
|
||||
final Rect outBoundsRect, final Params params) {
|
||||
final Rect outBoundsRect, final GestureTrailDrawingParams params) {
|
||||
synchronized (mEventTimes) {
|
||||
return drawGestureTrailLocked(canvas, paint, outBoundsRect, params);
|
||||
}
|
||||
}
|
||||
|
||||
private boolean drawGestureTrailLocked(final Canvas canvas, final Paint paint,
|
||||
final Rect outBoundsRect, final Params params) {
|
||||
final Rect outBoundsRect, final GestureTrailDrawingParams params) {
|
||||
// Initialize bounds rectangle.
|
||||
outBoundsRect.setEmpty();
|
||||
final int trailSize = mEventTimes.getLength();
|
||||
|
|
@ -29,16 +29,16 @@ import android.util.SparseArray;
|
|||
import android.view.View;
|
||||
|
||||
import com.android.inputmethod.keyboard.PointerTracker;
|
||||
import com.android.inputmethod.keyboard.internal.GestureTrail.Params;
|
||||
import com.android.inputmethod.latin.utils.CollectionUtils;
|
||||
import com.android.inputmethod.latin.utils.LeakGuardHandlerWrapper;
|
||||
|
||||
/**
|
||||
* Draw gesture trail preview graphics during gesture.
|
||||
* Draw preview graphics of multiple gesture trails during gesture input.
|
||||
*/
|
||||
public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
||||
private final SparseArray<GestureTrail> mGestureTrails = CollectionUtils.newSparseArray();
|
||||
private final Params mGestureTrailParams;
|
||||
private final SparseArray<GestureTrailDrawingPoints> mGestureTrails =
|
||||
CollectionUtils.newSparseArray();
|
||||
private final GestureTrailDrawingParams mDrawingParams;
|
||||
private final Paint mGesturePaint;
|
||||
private int mOffscreenWidth;
|
||||
private int mOffscreenHeight;
|
||||
|
|
@ -55,12 +55,12 @@ public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
|||
extends LeakGuardHandlerWrapper<GestureTrailsDrawingPreview> {
|
||||
private static final int MSG_UPDATE_GESTURE_TRAIL = 0;
|
||||
|
||||
private final Params mGestureTrailParams;
|
||||
private final GestureTrailDrawingParams mDrawingParams;
|
||||
|
||||
public DrawingHandler(final GestureTrailsDrawingPreview ownerInstance,
|
||||
final Params gestureTrailParams) {
|
||||
final GestureTrailDrawingParams drawingParams) {
|
||||
super(ownerInstance);
|
||||
mGestureTrailParams = gestureTrailParams;
|
||||
mDrawingParams = drawingParams;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -79,15 +79,15 @@ public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
|||
public void postUpdateGestureTrailPreview() {
|
||||
removeMessages(MSG_UPDATE_GESTURE_TRAIL);
|
||||
sendMessageDelayed(obtainMessage(MSG_UPDATE_GESTURE_TRAIL),
|
||||
mGestureTrailParams.mUpdateInterval);
|
||||
mDrawingParams.mUpdateInterval);
|
||||
}
|
||||
}
|
||||
|
||||
public GestureTrailsDrawingPreview(final View drawingView,
|
||||
final TypedArray mainKeyboardViewAttr) {
|
||||
super(drawingView);
|
||||
mGestureTrailParams = new Params(mainKeyboardViewAttr);
|
||||
mDrawingHandler = new DrawingHandler(this, mGestureTrailParams);
|
||||
mDrawingParams = new GestureTrailDrawingParams(mainKeyboardViewAttr);
|
||||
mDrawingHandler = new DrawingHandler(this, mDrawingParams);
|
||||
final Paint gesturePaint = new Paint();
|
||||
gesturePaint.setAntiAlias(true);
|
||||
gesturePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
|
||||
|
|
@ -96,8 +96,8 @@ public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
|||
|
||||
@Override
|
||||
public void setKeyboardGeometry(final int[] originCoords, final int width, final int height) {
|
||||
mOffscreenOffsetY = (int)(
|
||||
height * GestureStroke.EXTRA_GESTURE_TRAIL_AREA_ABOVE_KEYBOARD_RATIO);
|
||||
mOffscreenOffsetY = (int)(height
|
||||
* GestureStrokeRecognitionPoints.EXTRA_GESTURE_TRAIL_AREA_ABOVE_KEYBOARD_RATIO);
|
||||
mOffscreenWidth = width;
|
||||
mOffscreenHeight = mOffscreenOffsetY + height;
|
||||
}
|
||||
|
|
@ -143,9 +143,9 @@ public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
|||
// Trails count == fingers count that have ever been active.
|
||||
final int trailsCount = mGestureTrails.size();
|
||||
for (int index = 0; index < trailsCount; index++) {
|
||||
final GestureTrail trail = mGestureTrails.valueAt(index);
|
||||
final GestureTrailDrawingPoints trail = mGestureTrails.valueAt(index);
|
||||
needsUpdatingGestureTrail |= trail.drawGestureTrail(offscreenCanvas, paint,
|
||||
mGestureTrailBoundsRect, mGestureTrailParams);
|
||||
mGestureTrailBoundsRect, mDrawingParams);
|
||||
// {@link #mGestureTrailBoundsRect} has bounding box of the trail.
|
||||
dirtyRect.union(mGestureTrailBoundsRect);
|
||||
}
|
||||
|
|
@ -188,15 +188,15 @@ public final class GestureTrailsDrawingPreview extends AbstractDrawingPreview {
|
|||
if (!isPreviewEnabled()) {
|
||||
return;
|
||||
}
|
||||
GestureTrail trail;
|
||||
GestureTrailDrawingPoints trail;
|
||||
synchronized (mGestureTrails) {
|
||||
trail = mGestureTrails.get(tracker.mPointerId);
|
||||
if (trail == null) {
|
||||
trail = new GestureTrail();
|
||||
trail = new GestureTrailDrawingPoints();
|
||||
mGestureTrails.put(tracker.mPointerId, trail);
|
||||
}
|
||||
}
|
||||
trail.addStroke(tracker.getGestureStrokeWithPreviewPoints(), tracker.getDownTime());
|
||||
trail.addStroke(tracker.getGestureStrokeDrawingPoints(), tracker.getDownTime());
|
||||
|
||||
// TODO: Should narrow the invalidate region.
|
||||
getDrawingView().invalidate();
|
||||
|
|
|
|||
Loading…
Reference in a new issue