Using squared hypot to optimize some comparisions
Change-Id: Ia5b99c2e60eedf02dea26857819f0e13127db4e2
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
index 20ea3a1..248df34 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
@@ -23,6 +23,7 @@
import static android.view.MotionEvent.ACTION_POINTER_UP;
import static android.view.MotionEvent.ACTION_UP;
+import static com.android.launcher3.Utilities.squaredHypot;
import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction.UPLEFT;
import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction.UPRIGHT;
import static com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch.FLING;
@@ -81,7 +82,7 @@
private final float mDistThreshold;
private final long mTimeThreshold;
private final int mAngleThreshold;
- private final float mSlop;
+ private final float mSquaredSlop;
private final ISystemUiProxy mSysUiProxy;
private final Context mContext;
private final SwipeDetector mSwipeDetector;
@@ -96,7 +97,8 @@
mDistThreshold = res.getDimension(R.dimen.gestures_assistant_drag_threshold);
mTimeThreshold = res.getInteger(R.integer.assistant_gesture_min_time_threshold);
mAngleThreshold = res.getInteger(R.integer.assistant_gesture_corner_deg_threshold);
- mSlop = QuickStepContract.getQuickStepDragSlopPx();
+ float slop = QuickStepContract.getQuickStepDragSlopPx();
+ mSquaredSlop = slop * slop;
mActivityControlHelper = activityControlHelper;
mSwipeDetector = new SwipeDetector(mContext, this, SwipeDetector.VERTICAL);
mSwipeDetector.setDetectableScrollConditions(SwipeDetector.DIRECTION_POSITIVE, false);
@@ -155,7 +157,8 @@
if (!mPassedSlop) {
// Normal gesture, ensure we pass the slop before we start tracking the gesture
- if (Math.hypot(mLastPos.x - mDownPos.x, mLastPos.y - mDownPos.y) > mSlop) {
+ if (squaredHypot(mLastPos.x - mDownPos.x, mLastPos.y - mDownPos.y)
+ > mSquaredSlop) {
mPassedSlop = true;
mStartDragPos.set(mLastPos.x, mLastPos.y);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
index b1d175d..d01b5ec 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
@@ -15,11 +15,13 @@
*/
package com.android.quickstep.inputconsumers;
+import static com.android.launcher3.Utilities.squaredHypot;
+import static com.android.launcher3.Utilities.squaredTouchSlop;
+
import android.content.Context;
import android.content.Intent;
import android.graphics.PointF;
import android.view.MotionEvent;
-import android.view.ViewConfiguration;
/**
* A dummy input consumer used when the device is still locked, e.g. from secure camera.
@@ -32,8 +34,7 @@
public DeviceLockedInputConsumer(Context context) {
mContext = context;
- float touchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
- mTouchSlopSquared = touchSlop * touchSlop;
+ mTouchSlopSquared = squaredTouchSlop(context);
}
@Override
@@ -48,9 +49,7 @@
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
mTouchDown.set(x, y);
} else if (ev.getAction() == MotionEvent.ACTION_MOVE) {
- float xSquared = (x - mTouchDown.x) * (x - mTouchDown.x);
- float ySquared = (y - mTouchDown.y) * (y - mTouchDown.y);
- if (xSquared + ySquared > mTouchSlopSquared) {
+ if (squaredHypot(x - mTouchDown.x, y - mTouchDown.y) > mTouchSlopSquared) {
// For now, just start the home intent so user is prompted to unlock the device.
mContext.startActivity(new Intent(Intent.ACTION_MAIN)
.addCategory(Intent.CATEGORY_HOME)
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
index eb5366c..b0acffa 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/OtherActivityInputConsumer.java
@@ -23,6 +23,7 @@
import static android.view.MotionEvent.ACTION_UP;
import static android.view.MotionEvent.INVALID_POINTER_ID;
import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
+import static com.android.launcher3.Utilities.squaredHypot;
import static com.android.launcher3.uioverrides.RecentsUiFactory.ROTATION_LANDSCAPE;
import static com.android.launcher3.uioverrides.RecentsUiFactory.ROTATION_SEASCAPE;
import static com.android.launcher3.util.RaceConditionTracker.ENTER;
@@ -109,7 +110,7 @@
private int mActivePointerId = INVALID_POINTER_ID;
private final float mDragSlop;
- private final float mTouchSlop;
+ private final float mSquaredTouchSlop;
// Slop used to check when we start moving window.
private boolean mPassedDragSlop;
@@ -157,7 +158,8 @@
mDisplayRotation = getSystemService(WindowManager.class).getDefaultDisplay().getRotation();
mDragSlop = QuickStepContract.getQuickStepDragSlopPx();
- mTouchSlop = QuickStepContract.getQuickStepTouchSlopPx();
+ float slop = QuickStepContract.getQuickStepTouchSlopPx();
+ mSquaredTouchSlop = slop * slop;
mPassedTouchSlop = mPassedDragSlop = continuingPreviousGesture;
}
@@ -256,7 +258,7 @@
}
if (!mPassedTouchSlop) {
- if (Math.hypot(displacementX, mLastPos.y - mDownPos.y) >= mTouchSlop) {
+ if (squaredHypot(displacementX, mLastPos.y - mDownPos.y) >= mSquaredTouchSlop) {
mPassedTouchSlop = true;
if (mIsDeferredDownTarget) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index a835680..661468a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -20,6 +20,8 @@
import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_PARAMS;
import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
+import static com.android.launcher3.Utilities.squaredHypot;
+import static com.android.launcher3.Utilities.squaredTouchSlop;
import static com.android.launcher3.anim.Interpolators.ACCEL;
import static com.android.launcher3.anim.Interpolators.ACCEL_2;
import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
@@ -281,7 +283,7 @@
private boolean mHandleTaskStackChanges;
private boolean mSwipeDownShouldLaunchApp;
private boolean mTouchDownToStartHome;
- private final int mTouchSlop;
+ private final float mSquaredTouchSlop;
private int mDownX;
private int mDownY;
@@ -339,7 +341,7 @@
setLayoutDirection(mIsRtl ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR);
mTaskTopMargin = getResources()
.getDimensionPixelSize(R.dimen.task_thumbnail_top_margin);
- mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
+ mSquaredTouchSlop = squaredTouchSlop(context);
mEmptyIcon = context.getDrawable(R.drawable.ic_empty_recents);
mEmptyIcon.setCallback(this);
@@ -496,7 +498,8 @@
case MotionEvent.ACTION_MOVE:
// Passing the touch slop will not allow dismiss to home
if (mTouchDownToStartHome &&
- (isHandlingTouch() || Math.hypot(mDownX - x, mDownY - y) > mTouchSlop)) {
+ (isHandlingTouch() ||
+ squaredHypot(mDownX - x, mDownY - y) > mSquaredTouchSlop)) {
mTouchDownToStartHome = false;
}
break;
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 796fd25..cc9bda7 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -61,6 +61,7 @@
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
+import android.view.ViewConfiguration;
import android.view.animation.Interpolator;
import com.android.launcher3.compat.LauncherAppsCompat;
@@ -726,6 +727,15 @@
return str.toString();
}
+ public static float squaredHypot(float x, float y) {
+ return x * x + y * y;
+ }
+
+ public static float squaredTouchSlop(Context context) {
+ float slop = ViewConfiguration.get(context).getScaledTouchSlop();
+ return slop * slop;
+ }
+
private static class FixedSizeEmptyDrawable extends ColorDrawable {
private final int mSize;
diff --git a/src/com/android/launcher3/popup/PopupContainerWithArrow.java b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
index 047f486..7b14fa2 100644
--- a/src/com/android/launcher3/popup/PopupContainerWithArrow.java
+++ b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
@@ -16,6 +16,8 @@
package com.android.launcher3.popup;
+import static com.android.launcher3.Utilities.squaredHypot;
+import static com.android.launcher3.Utilities.squaredTouchSlop;
import static com.android.launcher3.notification.NotificationMainView.NOTIFICATION_ITEM_INFO;
import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS;
import static com.android.launcher3.popup.PopupPopulator.MAX_SHORTCUTS_IF_NOTIFICATIONS;
@@ -37,7 +39,6 @@
import android.util.Pair;
import android.view.MotionEvent;
import android.view.View;
-import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.ImageView;
@@ -51,6 +52,7 @@
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherModel;
import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
import com.android.launcher3.accessibility.ShortcutMenuAccessibilityDelegate;
import com.android.launcher3.dot.DotInfo;
@@ -136,8 +138,8 @@
return true;
}
// Stop sending touch events to deep shortcut views if user moved beyond touch slop.
- return Math.hypot(mInterceptTouchDown.x - ev.getX(), mInterceptTouchDown.y - ev.getY())
- > ViewConfiguration.get(getContext()).getScaledTouchSlop();
+ return squaredHypot(mInterceptTouchDown.x - ev.getX(), mInterceptTouchDown.y - ev.getY())
+ > squaredTouchSlop(getContext());
}
@Override