diff options
Diffstat (limited to 'src/com/android/messaging/ui/mediapicker/camerafocus/PieRenderer.java')
| -rw-r--r-- | src/com/android/messaging/ui/mediapicker/camerafocus/PieRenderer.java | 825 |
1 files changed, 0 insertions, 825 deletions
diff --git a/src/com/android/messaging/ui/mediapicker/camerafocus/PieRenderer.java b/src/com/android/messaging/ui/mediapicker/camerafocus/PieRenderer.java deleted file mode 100644 index ce8ca00..0000000 --- a/src/com/android/messaging/ui/mediapicker/camerafocus/PieRenderer.java +++ /dev/null @@ -1,825 +0,0 @@ -/* - * Copyright (C) 2015 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.messaging.ui.mediapicker.camerafocus; - -import android.animation.Animator; -import android.animation.AnimatorListenerAdapter; -import android.content.Context; -import android.content.res.Resources; -import android.graphics.Canvas; -import android.graphics.Color; -import android.graphics.Paint; -import android.graphics.Path; -import android.graphics.Point; -import android.graphics.PointF; -import android.graphics.RectF; -import android.os.Handler; -import android.os.Message; -import android.view.MotionEvent; -import android.view.ViewConfiguration; -import android.view.animation.Animation; -import android.view.animation.Animation.AnimationListener; -import android.view.animation.LinearInterpolator; -import android.view.animation.Transformation; -import com.android.messaging.R; - -import java.util.ArrayList; -import java.util.List; - -public class PieRenderer extends OverlayRenderer - implements FocusIndicator { - // Sometimes continuous autofocus starts and stops several times quickly. - // These states are used to make sure the animation is run for at least some - // time. - private volatile int mState; - private ScaleAnimation mAnimation = new ScaleAnimation(); - private static final int STATE_IDLE = 0; - private static final int STATE_FOCUSING = 1; - private static final int STATE_FINISHING = 2; - private static final int STATE_PIE = 8; - - private Runnable mDisappear = new Disappear(); - private Animation.AnimationListener mEndAction = new EndAction(); - private static final int SCALING_UP_TIME = 600; - private static final int SCALING_DOWN_TIME = 100; - private static final int DISAPPEAR_TIMEOUT = 200; - private static final int DIAL_HORIZONTAL = 157; - - private static final long PIE_FADE_IN_DURATION = 200; - private static final long PIE_XFADE_DURATION = 200; - private static final long PIE_SELECT_FADE_DURATION = 300; - - private static final int MSG_OPEN = 0; - private static final int MSG_CLOSE = 1; - private static final float PIE_SWEEP = (float) (Math.PI * 2 / 3); - // geometry - private Point mCenter; - private int mRadius; - private int mRadiusInc; - - // the detection if touch is inside a slice is offset - // inbounds by this amount to allow the selection to show before the - // finger covers it - private int mTouchOffset; - - private List<PieItem> mItems; - - private PieItem mOpenItem; - - private Paint mSelectedPaint; - private Paint mSubPaint; - - // touch handling - private PieItem mCurrentItem; - - private Paint mFocusPaint; - private int mSuccessColor; - private int mFailColor; - private int mCircleSize; - private int mFocusX; - private int mFocusY; - private int mCenterX; - private int mCenterY; - - private int mDialAngle; - private RectF mCircle; - private RectF mDial; - private Point mPoint1; - private Point mPoint2; - private int mStartAnimationAngle; - private boolean mFocused; - private int mInnerOffset; - private int mOuterStroke; - private int mInnerStroke; - private boolean mTapMode; - private boolean mBlockFocus; - private int mTouchSlopSquared; - private Point mDown; - private boolean mOpening; - private LinearAnimation mXFade; - private LinearAnimation mFadeIn; - private volatile boolean mFocusCancelled; - - private Handler mHandler = new Handler() { - public void handleMessage(Message msg) { - switch(msg.what) { - case MSG_OPEN: - if (mListener != null) { - mListener.onPieOpened(mCenter.x, mCenter.y); - } - break; - case MSG_CLOSE: - if (mListener != null) { - mListener.onPieClosed(); - } - break; - } - } - }; - - private PieListener mListener; - - public static interface PieListener { - public void onPieOpened(int centerX, int centerY); - public void onPieClosed(); - } - - public void setPieListener(PieListener pl) { - mListener = pl; - } - - public PieRenderer(Context context) { - init(context); - } - - private void init(Context ctx) { - setVisible(false); - mItems = new ArrayList<PieItem>(); - Resources res = ctx.getResources(); - mRadius = (int) res.getDimensionPixelSize(R.dimen.pie_radius_start); - mCircleSize = mRadius - res.getDimensionPixelSize(R.dimen.focus_radius_offset); - mRadiusInc = (int) res.getDimensionPixelSize(R.dimen.pie_radius_increment); - mTouchOffset = (int) res.getDimensionPixelSize(R.dimen.pie_touch_offset); - mCenter = new Point(0, 0); - mSelectedPaint = new Paint(); - mSelectedPaint.setColor(Color.argb(255, 51, 181, 229)); - mSelectedPaint.setAntiAlias(true); - mSubPaint = new Paint(); - mSubPaint.setAntiAlias(true); - mSubPaint.setColor(Color.argb(200, 250, 230, 128)); - mFocusPaint = new Paint(); - mFocusPaint.setAntiAlias(true); - mFocusPaint.setColor(Color.WHITE); - mFocusPaint.setStyle(Paint.Style.STROKE); - mSuccessColor = Color.GREEN; - mFailColor = Color.RED; - mCircle = new RectF(); - mDial = new RectF(); - mPoint1 = new Point(); - mPoint2 = new Point(); - mInnerOffset = res.getDimensionPixelSize(R.dimen.focus_inner_offset); - mOuterStroke = res.getDimensionPixelSize(R.dimen.focus_outer_stroke); - mInnerStroke = res.getDimensionPixelSize(R.dimen.focus_inner_stroke); - mState = STATE_IDLE; - mBlockFocus = false; - mTouchSlopSquared = ViewConfiguration.get(ctx).getScaledTouchSlop(); - mTouchSlopSquared = mTouchSlopSquared * mTouchSlopSquared; - mDown = new Point(); - } - - public boolean showsItems() { - return mTapMode; - } - - public void addItem(PieItem item) { - // add the item to the pie itself - mItems.add(item); - } - - public void removeItem(PieItem item) { - mItems.remove(item); - } - - public void clearItems() { - mItems.clear(); - } - - public void showInCenter() { - if ((mState == STATE_PIE) && isVisible()) { - mTapMode = false; - show(false); - } else { - if (mState != STATE_IDLE) { - cancelFocus(); - } - mState = STATE_PIE; - setCenter(mCenterX, mCenterY); - mTapMode = true; - show(true); - } - } - - public void hide() { - show(false); - } - - /** - * guaranteed has center set - * @param show - */ - private void show(boolean show) { - if (show) { - mState = STATE_PIE; - // ensure clean state - mCurrentItem = null; - mOpenItem = null; - for (PieItem item : mItems) { - item.setSelected(false); - } - layoutPie(); - fadeIn(); - } else { - mState = STATE_IDLE; - mTapMode = false; - if (mXFade != null) { - mXFade.cancel(); - } - } - setVisible(show); - mHandler.sendEmptyMessage(show ? MSG_OPEN : MSG_CLOSE); - } - - private void fadeIn() { - mFadeIn = new LinearAnimation(0, 1); - mFadeIn.setDuration(PIE_FADE_IN_DURATION); - mFadeIn.setAnimationListener(new AnimationListener() { - @Override - public void onAnimationStart(Animation animation) { - } - - @Override - public void onAnimationEnd(Animation animation) { - mFadeIn = null; - } - - @Override - public void onAnimationRepeat(Animation animation) { - } - }); - mFadeIn.startNow(); - mOverlay.startAnimation(mFadeIn); - } - - public void setCenter(int x, int y) { - mCenter.x = x; - mCenter.y = y; - // when using the pie menu, align the focus ring - alignFocus(x, y); - } - - private void layoutPie() { - int rgap = 2; - int inner = mRadius + rgap; - int outer = mRadius + mRadiusInc - rgap; - int gap = 1; - layoutItems(mItems, (float) (Math.PI / 2), inner, outer, gap); - } - - private void layoutItems(List<PieItem> items, float centerAngle, int inner, - int outer, int gap) { - float emptyangle = PIE_SWEEP / 16; - float sweep = (float) (PIE_SWEEP - 2 * emptyangle) / items.size(); - float angle = centerAngle - PIE_SWEEP / 2 + emptyangle + sweep / 2; - // check if we have custom geometry - // first item we find triggers custom sweep for all - // this allows us to re-use the path - for (PieItem item : items) { - if (item.getCenter() >= 0) { - sweep = item.getSweep(); - break; - } - } - Path path = makeSlice(getDegrees(0) - gap, getDegrees(sweep) + gap, - outer, inner, mCenter); - for (PieItem item : items) { - // shared between items - item.setPath(path); - if (item.getCenter() >= 0) { - angle = item.getCenter(); - } - int w = item.getIntrinsicWidth(); - int h = item.getIntrinsicHeight(); - // move views to outer border - int r = inner + (outer - inner) * 2 / 3; - int x = (int) (r * Math.cos(angle)); - int y = mCenter.y - (int) (r * Math.sin(angle)) - h / 2; - x = mCenter.x + x - w / 2; - item.setBounds(x, y, x + w, y + h); - float itemstart = angle - sweep / 2; - item.setGeometry(itemstart, sweep, inner, outer); - if (item.hasItems()) { - layoutItems(item.getItems(), angle, inner, - outer + mRadiusInc / 2, gap); - } - angle += sweep; - } - } - - private Path makeSlice(float start, float end, int outer, int inner, Point center) { - RectF bb = - new RectF(center.x - outer, center.y - outer, center.x + outer, - center.y + outer); - RectF bbi = - new RectF(center.x - inner, center.y - inner, center.x + inner, - center.y + inner); - Path path = new Path(); - path.arcTo(bb, start, end - start, true); - path.arcTo(bbi, end, start - end); - path.close(); - return path; - } - - /** - * converts a - * @param angle from 0..PI to Android degrees (clockwise starting at 3 o'clock) - * @return skia angle - */ - private float getDegrees(double angle) { - return (float) (360 - 180 * angle / Math.PI); - } - - private void startFadeOut() { - mOverlay.animate().alpha(0).setListener(new AnimatorListenerAdapter() { - @Override - public void onAnimationEnd(Animator animation) { - deselect(); - show(false); - mOverlay.setAlpha(1); - super.onAnimationEnd(animation); - } - }).setDuration(PIE_SELECT_FADE_DURATION); - } - - @Override - public void onDraw(Canvas canvas) { - float alpha = 1; - if (mXFade != null) { - alpha = mXFade.getValue(); - } else if (mFadeIn != null) { - alpha = mFadeIn.getValue(); - } - int state = canvas.save(); - if (mFadeIn != null) { - float sf = 0.9f + alpha * 0.1f; - canvas.scale(sf, sf, mCenter.x, mCenter.y); - } - drawFocus(canvas); - if (mState == STATE_FINISHING) { - canvas.restoreToCount(state); - return; - } - if ((mOpenItem == null) || (mXFade != null)) { - // draw base menu - for (PieItem item : mItems) { - drawItem(canvas, item, alpha); - } - } - if (mOpenItem != null) { - for (PieItem inner : mOpenItem.getItems()) { - drawItem(canvas, inner, (mXFade != null) ? (1 - 0.5f * alpha) : 1); - } - } - canvas.restoreToCount(state); - } - - private void drawItem(Canvas canvas, PieItem item, float alpha) { - if (mState == STATE_PIE) { - if (item.getPath() != null) { - if (item.isSelected()) { - Paint p = mSelectedPaint; - int state = canvas.save(); - float r = getDegrees(item.getStartAngle()); - canvas.rotate(r, mCenter.x, mCenter.y); - canvas.drawPath(item.getPath(), p); - canvas.restoreToCount(state); - } - alpha = alpha * (item.isEnabled() ? 1 : 0.3f); - // draw the item view - item.setAlpha(alpha); - item.draw(canvas); - } - } - } - - @Override - public boolean onTouchEvent(MotionEvent evt) { - float x = evt.getX(); - float y = evt.getY(); - int action = evt.getActionMasked(); - PointF polar = getPolar(x, y, !(mTapMode)); - if (MotionEvent.ACTION_DOWN == action) { - mDown.x = (int) evt.getX(); - mDown.y = (int) evt.getY(); - mOpening = false; - if (mTapMode) { - PieItem item = findItem(polar); - if ((item != null) && (mCurrentItem != item)) { - mState = STATE_PIE; - onEnter(item); - } - } else { - setCenter((int) x, (int) y); - show(true); - } - return true; - } else if (MotionEvent.ACTION_UP == action) { - if (isVisible()) { - PieItem item = mCurrentItem; - if (mTapMode) { - item = findItem(polar); - if (item != null && mOpening) { - mOpening = false; - return true; - } - } - if (item == null) { - mTapMode = false; - show(false); - } else if (!mOpening - && !item.hasItems()) { - item.performClick(); - startFadeOut(); - mTapMode = false; - } - return true; - } - } else if (MotionEvent.ACTION_CANCEL == action) { - if (isVisible() || mTapMode) { - show(false); - } - deselect(); - return false; - } else if (MotionEvent.ACTION_MOVE == action) { - if (polar.y < mRadius) { - if (mOpenItem != null) { - mOpenItem = null; - } else { - deselect(); - } - return false; - } - PieItem item = findItem(polar); - boolean moved = hasMoved(evt); - if ((item != null) && (mCurrentItem != item) && (!mOpening || moved)) { - // only select if we didn't just open or have moved past slop - mOpening = false; - if (moved) { - // switch back to swipe mode - mTapMode = false; - } - onEnter(item); - } - } - return false; - } - - private boolean hasMoved(MotionEvent e) { - return mTouchSlopSquared < (e.getX() - mDown.x) * (e.getX() - mDown.x) - + (e.getY() - mDown.y) * (e.getY() - mDown.y); - } - - /** - * enter a slice for a view - * updates model only - * @param item - */ - private void onEnter(PieItem item) { - if (mCurrentItem != null) { - mCurrentItem.setSelected(false); - } - if (item != null && item.isEnabled()) { - item.setSelected(true); - mCurrentItem = item; - if ((mCurrentItem != mOpenItem) && mCurrentItem.hasItems()) { - openCurrentItem(); - } - } else { - mCurrentItem = null; - } - } - - private void deselect() { - if (mCurrentItem != null) { - mCurrentItem.setSelected(false); - } - if (mOpenItem != null) { - mOpenItem = null; - } - mCurrentItem = null; - } - - private void openCurrentItem() { - if ((mCurrentItem != null) && mCurrentItem.hasItems()) { - mCurrentItem.setSelected(false); - mOpenItem = mCurrentItem; - mOpening = true; - mXFade = new LinearAnimation(1, 0); - mXFade.setDuration(PIE_XFADE_DURATION); - mXFade.setAnimationListener(new AnimationListener() { - @Override - public void onAnimationStart(Animation animation) { - } - - @Override - public void onAnimationEnd(Animation animation) { - mXFade = null; - } - - @Override - public void onAnimationRepeat(Animation animation) { - } - }); - mXFade.startNow(); - mOverlay.startAnimation(mXFade); - } - } - - private PointF getPolar(float x, float y, boolean useOffset) { - PointF res = new PointF(); - // get angle and radius from x/y - res.x = (float) Math.PI / 2; - x = x - mCenter.x; - y = mCenter.y - y; - res.y = (float) Math.sqrt(x * x + y * y); - if (x != 0) { - res.x = (float) Math.atan2(y, x); - if (res.x < 0) { - res.x = (float) (2 * Math.PI + res.x); - } - } - res.y = res.y + (useOffset ? mTouchOffset : 0); - return res; - } - - /** - * @param polar x: angle, y: dist - * @return the item at angle/dist or null - */ - private PieItem findItem(PointF polar) { - // find the matching item: - List<PieItem> items = (mOpenItem != null) ? mOpenItem.getItems() : mItems; - for (PieItem item : items) { - if (inside(polar, item)) { - return item; - } - } - return null; - } - - private boolean inside(PointF polar, PieItem item) { - return (item.getInnerRadius() < polar.y) - && (item.getStartAngle() < polar.x) - && (item.getStartAngle() + item.getSweep() > polar.x) - && (!mTapMode || (item.getOuterRadius() > polar.y)); - } - - @Override - public boolean handlesTouch() { - return true; - } - - // focus specific code - - public void setBlockFocus(boolean blocked) { - mBlockFocus = blocked; - if (blocked) { - clear(); - } - } - - public void setFocus(int x, int y) { - mFocusX = x; - mFocusY = y; - setCircle(mFocusX, mFocusY); - } - - public void alignFocus(int x, int y) { - mOverlay.removeCallbacks(mDisappear); - mAnimation.cancel(); - mAnimation.reset(); - mFocusX = x; - mFocusY = y; - mDialAngle = DIAL_HORIZONTAL; - setCircle(x, y); - mFocused = false; - } - - public int getSize() { - return 2 * mCircleSize; - } - - private int getRandomRange() { - return (int) (-60 + 120 * Math.random()); - } - - @Override - public void layout(int l, int t, int r, int b) { - super.layout(l, t, r, b); - mCenterX = (r - l) / 2; - mCenterY = (b - t) / 2; - mFocusX = mCenterX; - mFocusY = mCenterY; - setCircle(mFocusX, mFocusY); - if (isVisible() && mState == STATE_PIE) { - setCenter(mCenterX, mCenterY); - layoutPie(); - } - } - - private void setCircle(int cx, int cy) { - mCircle.set(cx - mCircleSize, cy - mCircleSize, - cx + mCircleSize, cy + mCircleSize); - mDial.set(cx - mCircleSize + mInnerOffset, cy - mCircleSize + mInnerOffset, - cx + mCircleSize - mInnerOffset, cy + mCircleSize - mInnerOffset); - } - - public void drawFocus(Canvas canvas) { - if (mBlockFocus) { - return; - } - mFocusPaint.setStrokeWidth(mOuterStroke); - canvas.drawCircle((float) mFocusX, (float) mFocusY, (float) mCircleSize, mFocusPaint); - if (mState == STATE_PIE) { - return; - } - int color = mFocusPaint.getColor(); - if (mState == STATE_FINISHING) { - mFocusPaint.setColor(mFocused ? mSuccessColor : mFailColor); - } - mFocusPaint.setStrokeWidth(mInnerStroke); - drawLine(canvas, mDialAngle, mFocusPaint); - drawLine(canvas, mDialAngle + 45, mFocusPaint); - drawLine(canvas, mDialAngle + 180, mFocusPaint); - drawLine(canvas, mDialAngle + 225, mFocusPaint); - canvas.save(); - // rotate the arc instead of its offset to better use framework's shape caching - canvas.rotate(mDialAngle, mFocusX, mFocusY); - canvas.drawArc(mDial, 0, 45, false, mFocusPaint); - canvas.drawArc(mDial, 180, 45, false, mFocusPaint); - canvas.restore(); - mFocusPaint.setColor(color); - } - - private void drawLine(Canvas canvas, int angle, Paint p) { - convertCart(angle, mCircleSize - mInnerOffset, mPoint1); - convertCart(angle, mCircleSize - mInnerOffset + mInnerOffset / 3, mPoint2); - canvas.drawLine(mPoint1.x + mFocusX, mPoint1.y + mFocusY, - mPoint2.x + mFocusX, mPoint2.y + mFocusY, p); - } - - private static void convertCart(int angle, int radius, Point out) { - double a = 2 * Math.PI * (angle % 360) / 360; - out.x = (int) (radius * Math.cos(a) + 0.5); - out.y = (int) (radius * Math.sin(a) + 0.5); - } - - @Override - public void showStart() { - if (mState == STATE_PIE) { - return; - } - cancelFocus(); - mStartAnimationAngle = 67; - int range = getRandomRange(); - startAnimation(SCALING_UP_TIME, - false, mStartAnimationAngle, mStartAnimationAngle + range); - mState = STATE_FOCUSING; - } - - @Override - public void showSuccess(boolean timeout) { - if (mState == STATE_FOCUSING) { - startAnimation(SCALING_DOWN_TIME, - timeout, mStartAnimationAngle); - mState = STATE_FINISHING; - mFocused = true; - } - } - - @Override - public void showFail(boolean timeout) { - if (mState == STATE_FOCUSING) { - startAnimation(SCALING_DOWN_TIME, - timeout, mStartAnimationAngle); - mState = STATE_FINISHING; - mFocused = false; - } - } - - private void cancelFocus() { - mFocusCancelled = true; - mOverlay.removeCallbacks(mDisappear); - if (mAnimation != null) { - mAnimation.cancel(); - } - mFocusCancelled = false; - mFocused = false; - mState = STATE_IDLE; - } - - @Override - public void clear() { - if (mState == STATE_PIE) { - return; - } - cancelFocus(); - mOverlay.post(mDisappear); - } - - private void startAnimation(long duration, boolean timeout, - float toScale) { - startAnimation(duration, timeout, mDialAngle, - toScale); - } - - private void startAnimation(long duration, boolean timeout, - float fromScale, float toScale) { - setVisible(true); - mAnimation.reset(); - mAnimation.setDuration(duration); - mAnimation.setScale(fromScale, toScale); - mAnimation.setAnimationListener(timeout ? mEndAction : null); - mOverlay.startAnimation(mAnimation); - update(); - } - - private class EndAction implements Animation.AnimationListener { - @Override - public void onAnimationEnd(Animation animation) { - // Keep the focus indicator for some time. - if (!mFocusCancelled) { - mOverlay.postDelayed(mDisappear, DISAPPEAR_TIMEOUT); - } - } - - @Override - public void onAnimationRepeat(Animation animation) { - } - - @Override - public void onAnimationStart(Animation animation) { - } - } - - private class Disappear implements Runnable { - @Override - public void run() { - if (mState == STATE_PIE) { - return; - } - setVisible(false); - mFocusX = mCenterX; - mFocusY = mCenterY; - mState = STATE_IDLE; - setCircle(mFocusX, mFocusY); - mFocused = false; - } - } - - private class ScaleAnimation extends Animation { - private float mFrom = 1f; - private float mTo = 1f; - - public ScaleAnimation() { - setFillAfter(true); - } - - public void setScale(float from, float to) { - mFrom = from; - mTo = to; - } - - @Override - protected void applyTransformation(float interpolatedTime, Transformation t) { - mDialAngle = (int) (mFrom + (mTo - mFrom) * interpolatedTime); - } - } - - - private class LinearAnimation extends Animation { - private float mFrom; - private float mTo; - private float mValue; - - public LinearAnimation(float from, float to) { - setFillAfter(true); - setInterpolator(new LinearInterpolator()); - mFrom = from; - mTo = to; - } - - public float getValue() { - return mValue; - } - - @Override - protected void applyTransformation(float interpolatedTime, Transformation t) { - mValue = (mFrom + (mTo - mFrom) * interpolatedTime); - } - } - -}
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