/*
* Copyright (C) 2018 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 androidx.constraintlayout.motion.widget;
import android.content.Context;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.Log;
import android.util.SparseArray;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AnimationUtils;
import android.view.animation.BounceInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.Interpolator;
import android.view.animation.OvershootInterpolator;
import androidx.constraintlayout.core.motion.utils.CurveFit;
import androidx.constraintlayout.core.motion.utils.Easing;
import androidx.constraintlayout.core.motion.utils.KeyCache;
import androidx.constraintlayout.core.motion.utils.SplineSet;
import androidx.constraintlayout.core.motion.utils.VelocityMatrix;
import androidx.constraintlayout.motion.utils.ViewOscillator;
import androidx.constraintlayout.motion.utils.ViewSpline;
import androidx.constraintlayout.motion.utils.ViewState;
import androidx.constraintlayout.motion.utils.ViewTimeCycle;
import androidx.constraintlayout.widget.ConstraintAttribute;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.constraintlayout.widget.ConstraintSet;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import static androidx.constraintlayout.motion.widget.Key.UNSET;
/**
* This contains the picture of a view through the a transition and is used to interpolate it
* During an transition every view has a MotionController which drives its position.
* <p>
* All parameter which affect a views motion are added to MotionController and then setup()
* builds out the splines that control the view.
*
* @hide
*/
public class MotionController {
public static final int PATH_PERCENT = 0;
public static final int PATH_PERPENDICULAR = 1;
public static final int HORIZONTAL_PATH_X = 2;
public static final int HORIZONTAL_PATH_Y = 3;
public static final int VERTICAL_PATH_X = 4;
public static final int VERTICAL_PATH_Y = 5;
public final static int DRAW_PATH_NONE = 0;
public final static int DRAW_PATH_BASIC = 1;
public final static int DRAW_PATH_RELATIVE = 2;
public final static int DRAW_PATH_CARTESIAN = 3;
public final static int DRAW_PATH_AS_CONFIGURED = 4;
public final static int DRAW_PATH_RECTANGLE = 5;
public final static int DRAW_PATH_SCREEN = 6;
public static final int ROTATION_RIGHT = 1;
public static final int ROTATION_LEFT = 2;
Rect mTempRect = new Rect(); // for efficiency
private static final String TAG = "MotionController";
private static final boolean DEBUG = false;
private static final boolean FAVOR_FIXED_SIZE_VIEWS = false;
View mView;
int mId;
String mConstraintTag;
private int mCurveFitType = KeyFrames.UNSET;
private MotionPaths mStartMotionPath = new MotionPaths();
private MotionPaths mEndMotionPath = new MotionPaths();
private MotionConstrainedPoint mStartPoint = new MotionConstrainedPoint();
private MotionConstrainedPoint mEndPoint = new MotionConstrainedPoint();
private CurveFit[] mSpline; // spline 0 is the generic one that process all the standard attributes
private CurveFit mArcSpline;
float mMotionStagger = Float.NaN;
float mStaggerOffset = 0;
float mStaggerScale = 1.0f;
float mCurrentCenterX, mCurrentCenterY;
private int[] mInterpolateVariables;
private double[] mInterpolateData; // scratch data created during setup
private double[] mInterpolateVelocity; // scratch data created during setup
private String[] mAttributeNames; // the names of the custom attributes
private int[] mAttributeInterpolatorCount; // how many interpolators for each custom attribute
private int MAX_DIMENSION = 4;
private float mValuesBuff[] = new float[MAX_DIMENSION];
private ArrayList<MotionPaths> mMotionPaths = new ArrayList<>();
private float[] mVelocity = new float[1]; // used as a temp buffer to return values
private ArrayList<Key> mKeyList = new ArrayList<>(); // List of key frame items
private HashMap<String, ViewTimeCycle> mTimeCycleAttributesMap; // splines to calculate for use TimeCycles
private HashMap<String, ViewSpline> mAttributesMap; // splines to calculate values of attributes
private HashMap<String, ViewOscillator> mCycleMap; // splines to calculate values of attributes
private KeyTrigger[] mKeyTriggers; // splines to calculate values of attributes
private int mPathMotionArc = UNSET;
private int mTransformPivotTarget = UNSET; // if set, pivot point is maintained as the other object
private View mTransformPivotView = null; // if set, pivot point is maintained as the other object
private int mQuantizeMotionSteps = UNSET;
private float mQuantizeMotionPhase = Float.NaN;
private Interpolator mQuantizeMotionInterpolator = null;
private boolean mNoMovement = false;
/**
* Get the view to pivot around
*
* @return id of view or UNSET if not set
*/
public int getTransformPivotTarget() {
return mTransformPivotTarget;
}
/**
* Set a view to pivot around
*
* @param transformPivotTarget id of view
*/
public void setTransformPivotTarget(int transformPivotTarget) {
mTransformPivotTarget = transformPivotTarget;
mTransformPivotView = null;
}
MotionPaths getKeyFrame(int i) {
return mMotionPaths.get(i);
}
MotionController(View view) {
setView(view);
}
/**
* get the left most position of the widget at the start of the movement.
*
* @return the left most position
*/
public float getStartX() {
return mStartMotionPath.x;
}
/**
* get the top most position of the widget at the start of the movement.
* Positive is down.
*
* @return the top most position
*/
public float getStartY() {
return mStartMotionPath.y;
}
/**
* get the left most position of the widget at the end of the movement.
*
* @return the left most position
*/
public float getFinalX() {
return mEndMotionPath.x;
}
/**
* get the top most position of the widget at the end of the movement.
* Positive is down.
*
* @return the top most position
*/
public float getFinalY() {
return mEndMotionPath.y;
}
/**
* get the width of the widget at the start of the movement.
*
* @return the width at the start
*/
public float getStartWidth() {
return mStartMotionPath.width;
}
/**
* get the width of the widget at the start of the movement.
*
* @return the height at the start
*/
public float getStartHeight() {
return mStartMotionPath.height;
}
/**
* get the width of the widget at the end of the movement.
*
* @return the width at the end
*/
public float getFinalWidth() {
return mEndMotionPath.width;
}
/**
* get the width of the widget at the end of the movement.
*
* @return the height at the end
*/
public float getFinalHeight() {
return mEndMotionPath.height;
}
/**
* Will return the id of the view to move relative to
* The position at the start and then end will be viewed relative to this view
* -1 is the return value if NOT in polar mode
*
* @return the view id of the view this is in polar mode to or -1 if not in polar
*/
public int getAnimateRelativeTo() {
return mStartMotionPath.mAnimateRelativeTo;
}
public void setupRelative(MotionController motionController) {
mStartMotionPath.setupRelative(motionController, motionController.mStartMotionPath);
mEndMotionPath.setupRelative(motionController, motionController.mEndMotionPath);
}
public float getCenterX() {
return mCurrentCenterX;
}
public float getCenterY() {
return mCurrentCenterY;
}
public void getCenter(double p, float[] pos, float[] vel) {
double[] position = new double[4];
double[] velocity = new double[4];
int[] temp = new int[4];
mSpline[0].getPos(p, position);
mSpline[0].getSlope(p, velocity);
Arrays.fill(vel, 0);
mStartMotionPath.getCenter(p, mInterpolateVariables, position, pos, velocity, vel);
}
/**
* fill the array point with the center coordinates point[0] is filled with the
* x coordinate of "time" 0.0 mPoints[point.length-1] is filled with the y coordinate of "time"
* 1.0
*
* @param points array to fill (should be 2x the number of mPoints
* @param pointCount
* @return number of key frames
*/
void buildPath(float[] points, int pointCount) {
float mils = 1.0f / (pointCount - 1);
SplineSet trans_x = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_X);
SplineSet trans_y = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_Y);
ViewOscillator osc_x = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_X);
ViewOscillator osc_y = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_Y);
for (int i = 0; i < pointCount; i++) {
float position = (i) * mils;
if (mStaggerScale != 1.0f) {
if (position < mStaggerOffset) {
position = 0;
}
if (position > mStaggerOffset && position < 1.0) {
position -= mStaggerOffset;
position *= mStaggerScale;
position = Math.min(position, 1.0f);
}
}
double p = position;
Easing easing = mStartMotionPath.mKeyFrameEasing;
float start = 0;
float end = Float.NaN;
for (MotionPaths frame : mMotionPaths) {
if (frame.mKeyFrameEasing != null) { // this frame has an easing
if (frame.time < position) { // frame with easing is before the current pos
easing = frame.mKeyFrameEasing; // this is the candidate
start = frame.time; // this is also the starting time
} else { // frame with easing is past the pos
if (Float.isNaN(end)) { // we never ended the time line
end = frame.time;
}
}
}
}
if (easing != null) {
if (Float.isNaN(end)) {
end = 1.0f;
}
float offset = (position - start) / (end - start);
offset = (float) easing.get(offset);
p = offset * (end - start) + start;
}
mSpline[0].getPos(p, mInterpolateData);
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(p, mInterpolateData);
}
}
mStartMotionPath.getCenter(p, mInterpolateVariables, mInterpolateData, points, i * 2);
if (osc_x != null) {
points[i * 2] += osc_x.get(position);
} else if (trans_x != null) {
points[i * 2] += trans_x.get(position);
}
if (osc_y != null) {
points[i * 2 + 1] += osc_y.get(position);
} else if (trans_y != null) {
points[i * 2 + 1] += trans_y.get(position);
}
}
}
double[] getPos(double position) {
mSpline[0].getPos(position, mInterpolateData);
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(position, mInterpolateData);
}
}
return mInterpolateData;
}
/**
* fill the array point with the center coordinates point[0] is filled with the
* x coordinate of "time" 0.0 mPoints[point.length-1] is filled with the y coordinate of "time"
* 1.0
*
* @param bounds array to fill (should be 2x the number of mPoints
* @param pointCount
* @return number of key frames
*/
void buildBounds(float[] bounds, int pointCount) {
float mils = 1.0f / (pointCount - 1);
SplineSet trans_x = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_X);
SplineSet trans_y = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_Y);
ViewOscillator osc_x = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_X);
ViewOscillator osc_y = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_Y);
for (int i = 0; i < pointCount; i++) {
float position = (i) * mils;
if (mStaggerScale != 1.0f) {
if (position < mStaggerOffset) {
position = 0;
}
if (position > mStaggerOffset && position < 1.0) {
position -= mStaggerOffset;
position *= mStaggerScale;
position = Math.min(position, 1.0f);
}
}
double p = position;
Easing easing = mStartMotionPath.mKeyFrameEasing;
float start = 0;
float end = Float.NaN;
for (MotionPaths frame : mMotionPaths) {
if (frame.mKeyFrameEasing != null) { // this frame has an easing
if (frame.time < position) { // frame with easing is before the current pos
easing = frame.mKeyFrameEasing; // this is the candidate
start = frame.time; // this is also the starting time
} else { // frame with easing is past the pos
if (Float.isNaN(end)) { // we never ended the time line
end = frame.time;
}
}
}
}
if (easing != null) {
if (Float.isNaN(end)) {
end = 1.0f;
}
float offset = (position - start) / (end - start);
offset = (float) easing.get(offset);
p = offset * (end - start) + start;
}
mSpline[0].getPos(p, mInterpolateData);
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(p, mInterpolateData);
}
}
mStartMotionPath.getBounds(mInterpolateVariables, mInterpolateData, bounds, i * 2);
}
}
private float getPreCycleDistance() {
int pointCount = 100;
float[] points = new float[2];
float sum = 0;
float mils = 1.0f / (pointCount - 1);
double x = 0, y = 0;
for (int i = 0; i < pointCount; i++) {
float position = (i) * mils;
double p = position;
Easing easing = mStartMotionPath.mKeyFrameEasing;
float start = 0;
float end = Float.NaN;
for (MotionPaths frame : mMotionPaths) {
if (frame.mKeyFrameEasing != null) { // this frame has an easing
if (frame.time < position) { // frame with easing is before the current pos
easing = frame.mKeyFrameEasing; // this is the candidate
start = frame.time; // this is also the starting time
} else { // frame with easing is past the pos
if (Float.isNaN(end)) { // we never ended the time line
end = frame.time;
}
}
}
}
if (easing != null) {
if (Float.isNaN(end)) {
end = 1.0f;
}
float offset = (position - start) / (end - start);
offset = (float) easing.get(offset);
p = offset * (end - start) + start;
}
mSpline[0].getPos(p, mInterpolateData);
mStartMotionPath.getCenter(p, mInterpolateVariables, mInterpolateData, points, 0);
if (i > 0) {
sum += Math.hypot(y - points[1], x - points[0]);
}
x = points[0];
y = points[1];
}
return sum;
}
KeyPositionBase getPositionKeyframe(int layoutWidth, int layoutHeight, float x, float y) {
RectF start = new RectF();
start.left = mStartMotionPath.x;
start.top = mStartMotionPath.y;
start.right = start.left + mStartMotionPath.width;
start.bottom = start.top + mStartMotionPath.height;
RectF end = new RectF();
end.left = mEndMotionPath.x;
end.top = mEndMotionPath.y;
end.right = end.left + mEndMotionPath.width;
end.bottom = end.top + mEndMotionPath.height;
for (Key key : mKeyList) {
if (key instanceof KeyPositionBase) {
if (((KeyPositionBase) key).intersects(layoutWidth, layoutHeight, start, end, x, y)) {
return (KeyPositionBase) key;
}
}
}
return null;
}
int buildKeyFrames(float[] keyFrames, int[] mode) {
if (keyFrames != null) {
int count = 0;
double[] time = mSpline[0].getTimePoints();
if (mode != null) {
for (MotionPaths keyFrame : mMotionPaths) {
mode[count++] = keyFrame.mMode;
}
count = 0;
}
for (int i = 0; i < time.length; i++) {
mSpline[0].getPos(time[i], mInterpolateData);
mStartMotionPath.getCenter(time[i], mInterpolateVariables, mInterpolateData, keyFrames, count);
count += 2;
}
return count / 2;
}
return 0;
}
int buildKeyBounds(float[] keyBounds, int[] mode) {
if (keyBounds != null) {
int count = 0;
double[] time = mSpline[0].getTimePoints();
if (mode != null) {
for (MotionPaths keyFrame : mMotionPaths) {
mode[count++] = keyFrame.mMode;
}
count = 0;
}
for (int i = 0; i < time.length; i++) {
mSpline[0].getPos(time[i], mInterpolateData);
mStartMotionPath.getBounds(mInterpolateVariables, mInterpolateData, keyBounds, count);
count += 2;
}
return count / 2;
}
return 0;
}
String[] attributeTable;
int getAttributeValues(String attributeType, float[] points, int pointCount) {
float mils = 1.0f / (pointCount - 1);
SplineSet spline = mAttributesMap.get(attributeType);
if (spline == null) {
return -1;
}
for (int j = 0; j < points.length; j++) {
points[j] = spline.get(j / (points.length - 1));
}
return points.length;
}
void buildRect(float p, float[] path, int offset) {
p = getAdjustedPosition(p, null);
mSpline[0].getPos(p, mInterpolateData);
mStartMotionPath.getRect(mInterpolateVariables, mInterpolateData, path, offset);
}
void buildRectangles(float[] path, int pointCount) {
float mils = 1.0f / (pointCount - 1);
for (int i = 0; i < pointCount; i++) {
float position = (i) * mils;
position = getAdjustedPosition(position, null);
mSpline[0].getPos(position, mInterpolateData);
mStartMotionPath.getRect(mInterpolateVariables, mInterpolateData, path, i * 8);
}
}
float getKeyFrameParameter(int type, float x, float y) {
float dx = mEndMotionPath.x - mStartMotionPath.x;
float dy = mEndMotionPath.y - mStartMotionPath.y;
float startCenterX = mStartMotionPath.x + mStartMotionPath.width / 2;
float startCenterY = mStartMotionPath.y + mStartMotionPath.height / 2;
float hypotenuse = (float) Math.hypot(dx, dy);
if (hypotenuse < 0.0000001) {
return Float.NaN;
}
float vx = x - startCenterX;
float vy = y - startCenterY;
float distFromStart = (float) Math.hypot(vx, vy);
if (distFromStart == 0) {
return 0;
}
float pathDistance = (vx * dx + vy * dy);
switch (type) {
case PATH_PERCENT:
return pathDistance / hypotenuse;
case PATH_PERPENDICULAR:
return (float) Math.sqrt(hypotenuse * hypotenuse - pathDistance * pathDistance);
case HORIZONTAL_PATH_X:
return vx / dx;
case HORIZONTAL_PATH_Y:
return vy / dx;
case VERTICAL_PATH_X:
return vx / dy;
case VERTICAL_PATH_Y:
return vy / dy;
}
return 0;
}
private void insertKey(MotionPaths point) {
int pos = Collections.binarySearch(mMotionPaths, point);
if (pos == 0) {
Log.e(TAG, " KeyPath position \"" + point.position + "\" outside of range");
}
mMotionPaths.add(-pos - 1, point);
}
void addKeys(ArrayList<Key> list) {
mKeyList.addAll(list);
if (DEBUG) {
for (Key key : mKeyList) {
Log.v(TAG, " ################ set = " + key.getClass().getSimpleName());
}
}
}
public void addKey(Key key) {
mKeyList.add(key);
if (DEBUG) {
Log.v(TAG, " ################ addKey = " + key.getClass().getSimpleName());
}
}
public void setPathMotionArc(int arc) {
mPathMotionArc = arc;
}
/**
* Called after all TimePoints & Cycles have been added;
* Spines are evaluated
*/
public void setup(int parentWidth, int parentHeight, float transitionDuration, long currentTime) {
HashSet<String> springAttributes = new HashSet<>(); // attributes we need to interpolate
HashSet<String> timeCycleAttributes = new HashSet<>(); // attributes we need to interpolate
HashSet<String> splineAttributes = new HashSet<>(); // attributes we need to interpolate
HashSet<String> cycleAttributes = new HashSet<>(); // attributes we need to oscillate
HashMap<String, Integer> interpolation = new HashMap<>();
ArrayList<KeyTrigger> triggerList = null;
if (DEBUG) {
if (mKeyList == null) {
Log.v(TAG, ">>>>>>>>>>>>>>> mKeyList==null");
} else {
Log.v(TAG, ">>>>>>>>>>>>>>> mKeyList for " + Debug.getName(mView));
}
}
if (mPathMotionArc != UNSET) {
mStartMotionPath.mPathMotionArc = mPathMotionArc;
}
mStartPoint.different(mEndPoint, splineAttributes);
if (DEBUG) {
HashSet<String> attr = new HashSet<>();
mStartPoint.different(mEndPoint, attr);
Log.v(TAG, ">>>>>>>>>>>>>>> MotionConstrainedPoint found " + Arrays.toString(attr.toArray()));
}
if (mKeyList != null) {
for (Key key : mKeyList) {
if (key instanceof KeyPosition) {
KeyPosition keyPath = (KeyPosition) key;
insertKey(new MotionPaths(parentWidth, parentHeight, keyPath, mStartMotionPath, mEndMotionPath));
if (keyPath.mCurveFit != UNSET) {
mCurveFitType = keyPath.mCurveFit;
}
} else if (key instanceof KeyCycle) {
key.getAttributeNames(cycleAttributes);
} else if (key instanceof KeyTimeCycle) {
key.getAttributeNames(timeCycleAttributes);
} else if (key instanceof KeyTrigger) {
if (triggerList == null) {
triggerList = new ArrayList<>();
}
triggerList.add((KeyTrigger) key);
} else {
key.setInterpolation(interpolation);
key.getAttributeNames(splineAttributes);
}
}
}
//--------------------------- trigger support --------------------
if (triggerList != null) {
mKeyTriggers = triggerList.toArray(new KeyTrigger[0]);
}
if (DEBUG) {
if (!cycleAttributes.isEmpty()) {
Log.v(TAG, ">>>>>>>>>>>>>>>> found cycleA" +
Debug.getName(mView) + " cycles " +
Arrays.toString(cycleAttributes.toArray()));
}
if (!splineAttributes.isEmpty()) {
Log.v(TAG, ">>>>>>>>>>>>>>>> found spline " +
Debug.getName(mView) + " attrs " +
Arrays.toString(splineAttributes.toArray()));
}
if (!timeCycleAttributes.isEmpty()) {
Log.v(TAG, ">>>>>>>>>>>>>>>> found timeCycle " +
Debug.getName(mView) + " attrs " +
Arrays.toString(timeCycleAttributes.toArray()));
}
if (!springAttributes.isEmpty()) {
Log.v(TAG, ">>>>>>>>>>>>>>>> found springs " +
Debug.getName(mView) + " attrs " +
Arrays.toString(springAttributes.toArray()));
}
}
//--------------------------- splines support --------------------
if (!splineAttributes.isEmpty()) {
mAttributesMap = new HashMap<>();
for (String attribute : splineAttributes) {
ViewSpline splineSets;
if (attribute.startsWith("CUSTOM,")) {
SparseArray<ConstraintAttribute> attrList = new SparseArray<>();
String customAttributeName = attribute.split(",")[1];
for (Key key : mKeyList) {
if (key.mCustomConstraints == null) {
continue;
}
ConstraintAttribute customAttribute = key.mCustomConstraints.get(customAttributeName);
if (customAttribute != null) {
attrList.append(key.mFramePosition, customAttribute);
}
}
splineSets = ViewSpline.makeCustomSpline(attribute, attrList);
} else {
splineSets = ViewSpline.makeSpline(attribute);
}
if (splineSets == null) {
continue;
}
splineSets.setType(attribute);
mAttributesMap.put(attribute, splineSets);
}
if (mKeyList != null) {
for (Key key : mKeyList) {
if ((key instanceof KeyAttributes)) {
key.addValues(mAttributesMap);
}
}
}
mStartPoint.addValues(mAttributesMap, 0);
mEndPoint.addValues(mAttributesMap, 100);
for (String spline : mAttributesMap.keySet()) {
int curve = CurveFit.SPLINE; // default is SPLINE
if (interpolation.containsKey(spline)) {
Integer boxedCurve = interpolation.get(spline);
if (boxedCurve != null) {
curve = boxedCurve;
}
}
SplineSet splineSet = mAttributesMap.get(spline);
if (splineSet != null) {
splineSet.setup(curve);
}
}
}
//--------------------------- timeCycle support --------------------
if (!timeCycleAttributes.isEmpty()) {
if (mTimeCycleAttributesMap == null) {
mTimeCycleAttributesMap = new HashMap<>();
}
for (String attribute : timeCycleAttributes) {
if (mTimeCycleAttributesMap.containsKey(attribute)) {
continue;
}
ViewTimeCycle splineSets = null;
if (attribute.startsWith("CUSTOM,")) {
SparseArray<ConstraintAttribute> attrList = new SparseArray<>();
String customAttributeName = attribute.split(",")[1];
for (Key key : mKeyList) {
if (key.mCustomConstraints == null) {
continue;
}
ConstraintAttribute customAttribute = key.mCustomConstraints.get(customAttributeName);
if (customAttribute != null) {
attrList.append(key.mFramePosition, customAttribute);
}
}
splineSets = ViewTimeCycle.makeCustomSpline(attribute, attrList);
} else {
splineSets = ViewTimeCycle.makeSpline(attribute, currentTime);
}
if (splineSets == null) {
continue;
}
splineSets.setType(attribute);
mTimeCycleAttributesMap.put(attribute, splineSets);
}
if (mKeyList != null) {
for (Key key : mKeyList) {
if (key instanceof KeyTimeCycle) {
((KeyTimeCycle) key).addTimeValues(mTimeCycleAttributesMap);
}
}
}
for (String spline : mTimeCycleAttributesMap.keySet()) {
int curve = CurveFit.SPLINE; // default is SPLINE
if (interpolation.containsKey(spline)) {
curve = interpolation.get(spline);
}
mTimeCycleAttributesMap.get(spline).setup(curve);
}
}
//--------------------------------- end new key frame 2
MotionPaths[] points = new MotionPaths[2 + mMotionPaths.size()];
int count = 1;
points[0] = mStartMotionPath;
points[points.length - 1] = mEndMotionPath;
if (mMotionPaths.size() > 0 && mCurveFitType == KeyFrames.UNSET) {
mCurveFitType = CurveFit.SPLINE;
}
for (MotionPaths point : mMotionPaths) {
points[count++] = point;
}
// ----- setup custom attributes which must be in the start and end constraint sets
int variables = 18;
HashSet<String> attributeNameSet = new HashSet<>();
for (String s : mEndMotionPath.attributes.keySet()) {
if (mStartMotionPath.attributes.containsKey(s)) {
if (!splineAttributes.contains("CUSTOM," + s))
attributeNameSet.add(s);
}
}
mAttributeNames = attributeNameSet.toArray(new String[0]);
mAttributeInterpolatorCount = new int[mAttributeNames.length];
for (int i = 0; i < mAttributeNames.length; i++) {
String attributeName = mAttributeNames[i];
mAttributeInterpolatorCount[i] = 0;
for (int j = 0; j < points.length; j++) {
if (points[j].attributes.containsKey(attributeName)) {
ConstraintAttribute attribute = points[j].attributes.get(attributeName);
if (attribute != null) {
mAttributeInterpolatorCount[i] += attribute.numberOfInterpolatedValues();
break;
}
}
}
}
boolean arcMode = points[0].mPathMotionArc != UNSET;
boolean[] mask = new boolean[variables + mAttributeNames.length]; // defaults to false
for (int i = 1; i < points.length; i++) {
points[i].different(points[i - 1], mask, mAttributeNames, arcMode);
}
count = 0;
for (int i = 1; i < mask.length; i++) {
if (mask[i]) {
count++;
}
}
mInterpolateVariables = new int[count];
int varLen = Math.max(2, count);
mInterpolateData = new double[varLen];
mInterpolateVelocity = new double[varLen];
count = 0;
for (int i = 1; i < mask.length; i++) {
if (mask[i])
mInterpolateVariables[count++] = i;
}
double[][] splineData = new double[points.length][mInterpolateVariables.length];
double[] timePoint = new double[points.length];
for (int i = 0; i < points.length; i++) {
points[i].fillStandard(splineData[i], mInterpolateVariables);
timePoint[i] = points[i].time;
}
for (int j = 0; j < mInterpolateVariables.length; j++) {
int interpolateVariable = mInterpolateVariables[j];
if (interpolateVariable < MotionPaths.names.length) {
String s = MotionPaths.names[mInterpolateVariables[j]] + " [";
for (int i = 0; i < points.length; i++) {
s += splineData[i][j];
}
}
}
mSpline = new CurveFit[1 + mAttributeNames.length];
for (int i = 0; i < mAttributeNames.length; i++) {
int pointCount = 0;
double[][] splinePoints = null;
double[] timePoints = null;
String name = mAttributeNames[i];
for (int j = 0; j < points.length; j++) {
if (points[j].hasCustomData(name)) {
if (splinePoints == null) {
timePoints = new double[points.length];
splinePoints = new double[points.length][points[j].getCustomDataCount(name)];
}
timePoints[pointCount] = points[j].time;
points[j].getCustomData(name, splinePoints[pointCount], 0);
pointCount++;
}
}
timePoints = Arrays.copyOf(timePoints, pointCount);
splinePoints = Arrays.copyOf(splinePoints, pointCount);
mSpline[i + 1] = CurveFit.get(mCurveFitType, timePoints, splinePoints);
}
mSpline[0] = CurveFit.get(mCurveFitType, timePoint, splineData);
// --------------------------- SUPPORT ARC MODE --------------
if (points[0].mPathMotionArc != UNSET) {
int size = points.length;
int[] mode = new int[size];
double[] time = new double[size];
double[][] values = new double[size][2];
for (int i = 0; i < size; i++) {
mode[i] = points[i].mPathMotionArc;
time[i] = points[i].time;
values[i][0] = points[i].x;
values[i][1] = points[i].y;
}
mArcSpline = CurveFit.getArc(mode, time, values);
}
//--------------------------- Cycle support --------------------
float distance = Float.NaN;
mCycleMap = new HashMap<>();
if (mKeyList != null) {
for (String attribute : cycleAttributes) {
ViewOscillator cycle = ViewOscillator.makeSpline(attribute);
if (cycle == null) {
continue;
}
if (cycle.variesByPath()) {
if (Float.isNaN(distance)) {
distance = getPreCycleDistance();
}
}
cycle.setType(attribute);
mCycleMap.put(attribute, cycle);
}
for (Key key : mKeyList) {
if (key instanceof KeyCycle) {
((KeyCycle) key).addCycleValues(mCycleMap);
}
}
for (ViewOscillator cycle : mCycleMap.values()) {
cycle.setup(distance);
}
}
if (DEBUG) {
Log.v(TAG, "Animation of splineAttributes " + Arrays.toString(splineAttributes.toArray()));
Log.v(TAG, "Animation of cycle " + Arrays.toString(mCycleMap.keySet().toArray()));
if (mAttributesMap != null) {
Log.v(TAG, " splines = " + Arrays.toString(mAttributesMap.keySet().toArray()));
for (String s : mAttributesMap.keySet()) {
Log.v(TAG, s + " = " + mAttributesMap.get(s));
}
}
Log.v(TAG, " ---------------------------------------- ");
}
//--------------------------- end cycle support ----------------
}
/**
* Debug string
*
* @return
*/
public String toString() {
return " start: x: " + mStartMotionPath.x + " y: " + mStartMotionPath.y
+ " end: x: " + mEndMotionPath.x + " y: " + mEndMotionPath.y;
}
private void readView(MotionPaths motionPaths) {
motionPaths.setBounds((int) mView.getX(), (int) mView.getY(), mView.getWidth(), mView.getHeight());
}
public void setView(View view) {
mView = view;
mId = view.getId();
ViewGroup.LayoutParams lp = view.getLayoutParams();
if (lp instanceof ConstraintLayout.LayoutParams) {
mConstraintTag = ((ConstraintLayout.LayoutParams) lp).getConstraintTag();
}
}
public View getView() {
return mView;
}
void setStartCurrentState(View v) {
mStartMotionPath.time = 0;
mStartMotionPath.position = 0;
mStartMotionPath.setBounds(v.getX(), v.getY(), v.getWidth(), v.getHeight());
mStartPoint.setState(v);
}
public void setStartState(ViewState rect, View v, int rotation, int preWidth, int preHeight) {
mStartMotionPath.time = 0;
mStartMotionPath.position = 0;
int cx, cy;
Rect r = new Rect();
switch (rotation) {
case 2:
cx = rect.left + rect.right;
cy = rect.top + rect.bottom;
r.left = preHeight - (cy + rect.width()) / 2;
r.top = (cx - rect.height()) / 2;
r.right = r.left + rect.width();
r.bottom = r.top + rect.height();
break;
case 1:
cx = rect.left + rect.right;
cy = rect.top + rect.bottom;
r.left = (cy - rect.width()) / 2;
r.top = preWidth - (cx + rect.height()) / 2;
r.right = r.left + rect.width();
r.bottom = r.top + rect.height();
break;
}
mStartMotionPath.setBounds(r.left, r.top, r.width(), r.height());
mStartPoint.setState(r, v, rotation, rect.rotation);
}
void rotate(Rect rect, Rect out, int rotation, int preHeight, int preWidth) {
int cx, cy;
switch (rotation) {
case ConstraintSet.ROTATE_PORTRATE_OF_LEFT:
cx = rect.left + rect.right;
cy = rect.top + rect.bottom;
out.left = preHeight - (cy + rect.width()) / 2;
out.top = (cx - rect.height()) / 2;
out.right = out.left + rect.width();
out.bottom = out.top + rect.height();
break;
case ConstraintSet.ROTATE_PORTRATE_OF_RIGHT:
cx = rect.left + rect.right;
cy = rect.top + rect.bottom;
out.left = (cy - rect.width()) / 2;
out.top = preWidth - (cx + rect.height()) / 2;
out.right = out.left + rect.width();
out.bottom = out.top + rect.height();
break;
case ConstraintSet.ROTATE_LEFT_OF_PORTRATE:
cx = rect.left + rect.right;
cy = rect.bottom + rect.top;
out.left = preHeight - (cy + rect.width()) / 2;
out.top = (cx - rect.height()) / 2;
out.right = out.left + rect.width();
out.bottom = out.top + rect.height();
break;
case ConstraintSet.ROTATE_RIGHT_OF_PORTRATE:
cx = rect.left + rect.right;
cy = rect.top + rect.bottom;
out.left = rect.height() / 2 + rect.top - cx / 2;
out.top = preWidth - (cx + rect.height()) / 2;
out.right = out.left + rect.width();
out.bottom = out.top + rect.height();
break;
}
}
void setStartState(Rect cw, ConstraintSet constraintSet, int parentWidth, int parentHeight) {
int rotate = constraintSet.mRotate; // for rotated frames
if (rotate != 0) {
rotate(cw, mTempRect, rotate, parentWidth, parentHeight);
}
mStartMotionPath.time = 0;
mStartMotionPath.position = 0;
readView(mStartMotionPath);
mStartMotionPath.setBounds(cw.left, cw.top, cw.width(), cw.height());
ConstraintSet.Constraint constraint = constraintSet.getParameters(mId);
mStartMotionPath.applyParameters(constraint);
mMotionStagger = constraint.motion.mMotionStagger;
mStartPoint.setState(cw, constraintSet, rotate, mId);
mTransformPivotTarget = constraint.transform.transformPivotTarget;
mQuantizeMotionSteps = constraint.motion.mQuantizeMotionSteps;
mQuantizeMotionPhase = constraint.motion.mQuantizeMotionPhase;
mQuantizeMotionInterpolator = getInterpolator(mView.getContext(),
constraint.motion.mQuantizeInterpolatorType,
constraint.motion.mQuantizeInterpolatorString,
constraint.motion.mQuantizeInterpolatorID
);
}
static final int EASE_IN_OUT = 0;
static final int EASE_IN = 1;
static final int EASE_OUT = 2;
static final int LINEAR = 3;
static final int BOUNCE = 4;
static final int OVERSHOOT = 5;
private static final int SPLINE_STRING = -1;
private static final int INTERPOLATOR_REFERENCE_ID = -2;
private static final int INTERPOLATOR_UNDEFINED = -3;
private static Interpolator getInterpolator(Context context, int type, String interpolatorString, int id) {
switch (type) {
case SPLINE_STRING:
final Easing easing = Easing.getInterpolator(interpolatorString);
return new Interpolator() {
@Override
public float getInterpolation(float v) {
return (float) easing.get(v);
}
};
case INTERPOLATOR_REFERENCE_ID:
return AnimationUtils.loadInterpolator(context, id);
case EASE_IN_OUT:
return new AccelerateDecelerateInterpolator();
case EASE_IN:
return new AccelerateInterpolator();
case EASE_OUT:
return new DecelerateInterpolator();
case LINEAR:
return null;
case BOUNCE:
return new BounceInterpolator();
case OVERSHOOT:
return new OvershootInterpolator();
}
return null;
}
void setEndState(Rect cw, ConstraintSet constraintSet, int parentWidth, int parentHeight) {
int rotate = constraintSet.mRotate; // for rotated frames
if (rotate != 0) {
rotate(cw, mTempRect, rotate, parentWidth, parentHeight);
cw = mTempRect;
}
mEndMotionPath.time = 1;
mEndMotionPath.position = 1;
readView(mEndMotionPath);
mEndMotionPath.setBounds(cw.left, cw.top, cw.width(), cw.height());
mEndMotionPath.applyParameters(constraintSet.getParameters(mId));
mEndPoint.setState(cw, constraintSet, rotate, mId);
}
void setBothStates(View v) {
mStartMotionPath.time = 0;
mStartMotionPath.position = 0;
mNoMovement = true;
mStartMotionPath.setBounds(v.getX(), v.getY(), v.getWidth(), v.getHeight());
mEndMotionPath.setBounds(v.getX(), v.getY(), v.getWidth(), v.getHeight());
mStartPoint.setState(v);
mEndPoint.setState(v);
}
/**
* Calculates the adjusted (and optional velocity)
* Note if requesting velocity staggering is not considered
*
* @param position position pre stagger
* @param velocity return velocity
* @return actual position accounting for easing and staggering
*/
private float getAdjustedPosition(float position, float[] velocity) {
if (velocity != null) {
velocity[0] = 1;
} else if (mStaggerScale != 1.0) {
if (position < mStaggerOffset) {
position = 0;
}
if (position > mStaggerOffset && position < 1.0) {
position -= mStaggerOffset;
position *= mStaggerScale;
position = Math.min(position, 1.0f);
}
}
// adjust the position based on the easing curve
float adjusted = position;
Easing easing = mStartMotionPath.mKeyFrameEasing;
float start = 0;
float end = Float.NaN;
for (MotionPaths frame : mMotionPaths) {
if (frame.mKeyFrameEasing != null) { // this frame has an easing
if (frame.time < position) { // frame with easing is before the current pos
easing = frame.mKeyFrameEasing; // this is the candidate
start = frame.time; // this is also the starting time
} else { // frame with easing is past the pos
if (Float.isNaN(end)) { // we never ended the time line
end = frame.time;
}
}
}
}
if (easing != null) {
if (Float.isNaN(end)) {
end = 1.0f;
}
float offset = (position - start) / (end - start);
float new_offset = (float) easing.get(offset);
adjusted = new_offset * (end - start) + start;
if (velocity != null) {
velocity[0] = (float) easing.getDiff(offset);
}
}
return adjusted;
}
void endTrigger(boolean start) {
if ("button".equals(Debug.getName(mView)))
if (mKeyTriggers != null) {
for (int i = 0; i < mKeyTriggers.length; i++) {
mKeyTriggers[i].conditionallyFire(start ? -100 : 100, mView);
}
}
}
/**
* The main driver of interpolation
*
* @param child
* @param global_position
* @param time
* @param keyCache
* @return do you need to keep animating
*/
boolean interpolate(View child, float global_position, long time, KeyCache keyCache) {
boolean timeAnimation = false;
float position = getAdjustedPosition(global_position, null);
// This quantize the position into steps e.g 4 steps = 0-0.25,0.25-0.50 etc
if (mQuantizeMotionSteps != UNSET) {
float pin = position;
float steps = 1.0f / mQuantizeMotionSteps; // the length of a step
float jump = (float) Math.floor(position / steps) * steps; // step jumps
float section = (position % steps) / steps; // float from 0 to 1 in a step
if (!Float.isNaN(mQuantizeMotionPhase)) {
section = (section + mQuantizeMotionPhase) % 1;
}
if (mQuantizeMotionInterpolator != null) {
section = mQuantizeMotionInterpolator.getInterpolation(section);
} else {
section = section > 0.5 ? 1 : 0;
}
position = section * steps + jump;
}
ViewTimeCycle.PathRotate timePathRotate = null;
if (mAttributesMap != null) {
for (ViewSpline aSpline : mAttributesMap.values()) {
aSpline.setProperty(child, position);
}
}
if (mTimeCycleAttributesMap != null) {
for (ViewTimeCycle aSpline : mTimeCycleAttributesMap.values()) {
if (aSpline instanceof ViewTimeCycle.PathRotate) {
timePathRotate = (ViewTimeCycle.PathRotate) aSpline;
continue;
}
timeAnimation |= aSpline.setProperty(child, position, time, keyCache);
}
}
if (mSpline != null) {
mSpline[0].getPos(position, mInterpolateData);
mSpline[0].getSlope(position, mInterpolateVelocity);
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(position, mInterpolateData);
mArcSpline.getSlope(position, mInterpolateVelocity);
}
}
if (!mNoMovement) {
mStartMotionPath.setView(position, child, mInterpolateVariables, mInterpolateData, mInterpolateVelocity, null);
}
if (mTransformPivotTarget != UNSET) {
if (mTransformPivotView == null) {
View layout = (View) child.getParent();
mTransformPivotView = layout.findViewById(mTransformPivotTarget);
}
if (mTransformPivotView != null) {
float cy = (mTransformPivotView.getTop() + mTransformPivotView.getBottom()) / 2.0f;
float cx = (mTransformPivotView.getLeft() + mTransformPivotView.getRight()) / 2.0f;
if (child.getRight() - child.getLeft() > 0 && child.getBottom() - child.getTop() > 0) {
float px = (cx - child.getLeft());
float py = (cy - child.getTop());
child.setPivotX(px);
child.setPivotY(py);
}
}
}
if (mAttributesMap != null) {
for (SplineSet aSpline : mAttributesMap.values()) {
if (aSpline instanceof ViewSpline.PathRotate && mInterpolateVelocity.length > 1)
((ViewSpline.PathRotate) aSpline).setPathRotate(child, position,
mInterpolateVelocity[0], mInterpolateVelocity[1]);
}
}
if (timePathRotate != null) {
timeAnimation |= timePathRotate.setPathRotate(child, keyCache, position, time,
mInterpolateVelocity[0], mInterpolateVelocity[1]);
}
for (int i = 1; i < mSpline.length; i++) {
CurveFit spline = mSpline[i];
spline.getPos(position, mValuesBuff);
mStartMotionPath.attributes.get(mAttributeNames[i - 1]).setInterpolatedValue(child, mValuesBuff);
}
if (mStartPoint.mVisibilityMode == ConstraintSet.VISIBILITY_MODE_NORMAL) {
if (position <= 0.0f) {
child.setVisibility(mStartPoint.visibility);
} else if (position >= 1.0f) {
child.setVisibility(mEndPoint.visibility);
} else if (mEndPoint.visibility != mStartPoint.visibility) {
child.setVisibility(View.VISIBLE);
}
}
if (mKeyTriggers != null) {
for (int i = 0; i < mKeyTriggers.length; i++) {
mKeyTriggers[i].conditionallyFire(position, child);
}
}
} else {
// do the interpolation
float float_l = (mStartMotionPath.x + (mEndMotionPath.x - mStartMotionPath.x) * position);
float float_t = (mStartMotionPath.y + (mEndMotionPath.y - mStartMotionPath.y) * position);
float float_width = (mStartMotionPath.width + (mEndMotionPath.width - mStartMotionPath.width) * position);
float float_height = (mStartMotionPath.height + (mEndMotionPath.height - mStartMotionPath.height) * position);
int l = (int) (0.5f + float_l);
int t = (int) (0.5f + float_t);
int r = (int) (0.5f + float_l + float_width);
int b = (int) (0.5f + float_t + float_height);
int width = r - l;
int height = b - t;
if (FAVOR_FIXED_SIZE_VIEWS) {
l = (int) (mStartMotionPath.x + (mEndMotionPath.x - mStartMotionPath.x) * position);
t = (int) (mStartMotionPath.y + (mEndMotionPath.y - mStartMotionPath.y) * position);
width = (int) (mStartMotionPath.width + (mEndMotionPath.width - mStartMotionPath.width) * position);
height = (int) (mStartMotionPath.height + (mEndMotionPath.height - mStartMotionPath.height) * position);
r = l + width;
b = t + height;
}
if (mEndMotionPath.width != mStartMotionPath.width
|| mEndMotionPath.height != mStartMotionPath.height) {
int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
child.measure(widthMeasureSpec, heightMeasureSpec);
}
child.layout(l, t, r, b);
}
if (mCycleMap != null) {
for (ViewOscillator osc : mCycleMap.values()) {
if (osc instanceof ViewOscillator.PathRotateSet) {
((ViewOscillator.PathRotateSet) osc).setPathRotate(child, position,
mInterpolateVelocity[0], mInterpolateVelocity[1]);
} else {
osc.setProperty(child, position);
}
}
}
return timeAnimation;
}
/**
* This returns the differential with respect to the animation layout position (Progress)
* of a point on the view (post layout effects are not computed)
*
* @param position position in time
* @param locationX the x location on the view (0 = left edge, 1 = right edge)
* @param locationY the y location on the view (0 = top, 1 = bottom)
* @param mAnchorDpDt returns the differential of the motion with respect to the position
*/
void getDpDt(float position, float locationX, float locationY, float[] mAnchorDpDt) {
position = getAdjustedPosition(position, mVelocity);
if (mSpline != null) {
mSpline[0].getSlope(position, mInterpolateVelocity);
mSpline[0].getPos(position, mInterpolateData);
float v = mVelocity[0];
for (int i = 0; i < mInterpolateVelocity.length; i++) {
mInterpolateVelocity[i] *= v;
}
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(position, mInterpolateData);
mArcSpline.getSlope(position, mInterpolateVelocity);
mStartMotionPath.setDpDt(locationX, locationY, mAnchorDpDt, mInterpolateVariables, mInterpolateVelocity, mInterpolateData);
}
return;
}
mStartMotionPath.setDpDt(locationX, locationY, mAnchorDpDt, mInterpolateVariables, mInterpolateVelocity, mInterpolateData);
return;
}
// do the interpolation
float dleft = (mEndMotionPath.x - mStartMotionPath.x);
float dTop = (mEndMotionPath.y - mStartMotionPath.y);
float dWidth = (mEndMotionPath.width - mStartMotionPath.width);
float dHeight = (mEndMotionPath.height - mStartMotionPath.height);
float dRight = dleft + dWidth;
float dBottom = dTop + dHeight;
mAnchorDpDt[0] = dleft * (1 - locationX) + dRight * (locationX);
mAnchorDpDt[1] = dTop * (1 - locationY) + dBottom * (locationY);
}
/**
* This returns the differential with respect to the animation post layout transform
* of a point on the view
*
* @param position position in time
* @param width width of the view
* @param height height of the view
* @param locationX the x location on the view (0 = left edge, 1 = right edge)
* @param locationY the y location on the view (0 = top, 1 = bottom)
* @param mAnchorDpDt returns the differential of the motion with respect to the position
*/
void getPostLayoutDvDp(float position, int width, int height, float locationX, float locationY, float[] mAnchorDpDt) {
if (DEBUG) {
Log.v(TAG, " position= " + position + " location= " + locationX + " , " + locationY);
}
position = getAdjustedPosition(position, mVelocity);
SplineSet trans_x = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_X);
SplineSet trans_y = (mAttributesMap == null) ? null : mAttributesMap.get(Key.TRANSLATION_Y);
SplineSet rotation = (mAttributesMap == null) ? null : mAttributesMap.get(Key.ROTATION);
SplineSet scale_x = (mAttributesMap == null) ? null : mAttributesMap.get(Key.SCALE_X);
SplineSet scale_y = (mAttributesMap == null) ? null : mAttributesMap.get(Key.SCALE_Y);
ViewOscillator osc_x = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_X);
ViewOscillator osc_y = (mCycleMap == null) ? null : mCycleMap.get(Key.TRANSLATION_Y);
ViewOscillator osc_r = (mCycleMap == null) ? null : mCycleMap.get(Key.ROTATION);
ViewOscillator osc_sx = (mCycleMap == null) ? null : mCycleMap.get(Key.SCALE_X);
ViewOscillator osc_sy = (mCycleMap == null) ? null : mCycleMap.get(Key.SCALE_Y);
VelocityMatrix vmat = new VelocityMatrix();
vmat.clear();
vmat.setRotationVelocity(rotation, position);
vmat.setTranslationVelocity(trans_x, trans_y, position);
vmat.setScaleVelocity(scale_x, scale_y, position);
vmat.setRotationVelocity(osc_r, position);
vmat.setTranslationVelocity(osc_x, osc_y, position);
vmat.setScaleVelocity(osc_sx, osc_sy, position);
if (mArcSpline != null) {
if (mInterpolateData.length > 0) {
mArcSpline.getPos(position, mInterpolateData);
mArcSpline.getSlope(position, mInterpolateVelocity);
mStartMotionPath.setDpDt(locationX, locationY, mAnchorDpDt, mInterpolateVariables, mInterpolateVelocity, mInterpolateData);
}
vmat.applyTransform(locationX, locationY, width, height, mAnchorDpDt);
return;
}
if (mSpline != null) {
position = getAdjustedPosition(position, mVelocity);
mSpline[0].getSlope(position, mInterpolateVelocity);
mSpline[0].getPos(position, mInterpolateData);
float v = mVelocity[0];
for (int i = 0; i < mInterpolateVelocity.length; i++) {
mInterpolateVelocity[i] *= v;
}
mStartMotionPath.setDpDt(locationX, locationY, mAnchorDpDt, mInterpolateVariables, mInterpolateVelocity, mInterpolateData);
vmat.applyTransform(locationX, locationY, width, height, mAnchorDpDt);
return;
}
// do the interpolation
float dleft = (mEndMotionPath.x - mStartMotionPath.x);
float dTop = (mEndMotionPath.y - mStartMotionPath.y);
float dWidth = (mEndMotionPath.width - mStartMotionPath.width);
float dHeight = (mEndMotionPath.height - mStartMotionPath.height);
float dRight = dleft + dWidth;
float dBottom = dTop + dHeight;
mAnchorDpDt[0] = dleft * (1 - locationX) + dRight * (locationX);
mAnchorDpDt[1] = dTop * (1 - locationY) + dBottom * (locationY);
vmat.clear();
vmat.setRotationVelocity(rotation, position);
vmat.setTranslationVelocity(trans_x, trans_y, position);
vmat.setScaleVelocity(scale_x, scale_y, position);
vmat.setRotationVelocity(osc_r, position);
vmat.setTranslationVelocity(osc_x, osc_y, position);
vmat.setScaleVelocity(osc_sx, osc_sy, position);
vmat.applyTransform(locationX, locationY, width, height, mAnchorDpDt);
return;
}
public int getDrawPath() {
int mode = mStartMotionPath.mDrawPath;
for (MotionPaths keyFrame : mMotionPaths) {
mode = Math.max(mode, keyFrame.mDrawPath);
}
mode = Math.max(mode, mEndMotionPath.mDrawPath);
return mode;
}
public void setDrawPath(int debugMode) {
mStartMotionPath.mDrawPath = debugMode;
}
String name() {
Context context = mView.getContext();
return context.getResources().getResourceEntryName(mView.getId());
}
void positionKeyframe(View view, KeyPositionBase key, float x, float y, String[] attribute, float[] value) {
RectF start = new RectF();
start.left = mStartMotionPath.x;
start.top = mStartMotionPath.y;
start.right = start.left + mStartMotionPath.width;
start.bottom = start.top + mStartMotionPath.height;
RectF end = new RectF();
end.left = mEndMotionPath.x;
end.top = mEndMotionPath.y;
end.right = end.left + mEndMotionPath.width;
end.bottom = end.top + mEndMotionPath.height;
key.positionAttributes(view, start, end, x, y, attribute, value);
}
/**
* Get the keyFrames for the view controlled by this MotionController
*
* @param type is position(0-100) + 1000*mType(1=Attributes, 2=Position, 3=TimeCycle 4=Cycle 5=Trigger
* @param pos the x&y position of the keyFrame along the path
* @return Number of keyFrames found
*/
public int getKeyFramePositions(int[] type, float[] pos) {
int i = 0;
int count = 0;
for (Key key : mKeyList) {
type[i++] = key.mFramePosition + 1000 * key.mType;
float time = key.mFramePosition / 100.0f;
mSpline[0].getPos(time, mInterpolateData);
mStartMotionPath.getCenter(time, mInterpolateVariables, mInterpolateData, pos, count);
count += 2;
}
return i;
}
/**
* Get the keyFrames for the view controlled by this MotionController
* the info data structure is of the the form
* 0 length if your are at index i the [i+len+1] is the next entry
* 1 type 1=Attributes, 2=Position, 3=TimeCycle 4=Cycle 5=Trigger
* 2 position
* 3 x location
* 4 y location
* 5
* ...
* length
*
* @param info is a data structure array of int that holds info on each keyframe
* @return Number of keyFrames found
*/
public int getKeyFrameInfo(int type, int[] info) {
int count = 0;
int cursor = 0;
float[] pos = new float[2];
int len;
for (Key key : mKeyList) {
if (key.mType != type && type == -1) {
continue;
}
len = cursor;
info[cursor] = 0;
info[++cursor] = key.mType;
info[++cursor] = key.mFramePosition;
float time = key.mFramePosition / 100.0f;
mSpline[0].getPos(time, mInterpolateData);
mStartMotionPath.getCenter(time, mInterpolateVariables, mInterpolateData, pos, 0);
info[++cursor] = Float.floatToIntBits(pos[0]);
info[++cursor] = Float.floatToIntBits(pos[1]);
if (key instanceof KeyPosition) {
KeyPosition kp = (KeyPosition) key;
info[++cursor] = kp.mPositionType;
info[++cursor] = Float.floatToIntBits(kp.mPercentX);
info[++cursor] = Float.floatToIntBits(kp.mPercentY);
}
cursor++;
info[len] = cursor - len;
count++;
}
return count;
}
}