/*
 * Copyright (C) 2017 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.quickstep.views;

import static android.view.WindowInsetsController.APPEARANCE_LIGHT_NAVIGATION_BARS;
import static android.view.WindowInsetsController.APPEARANCE_LIGHT_STATUS_BARS;

import static com.android.launcher3.Utilities.comp;
import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
import static com.android.systemui.shared.system.WindowManagerWrapper.WINDOWING_MODE_FULLSCREEN;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Insets;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.os.Build;
import android.util.AttributeSet;
import android.util.FloatProperty;
import android.util.Property;
import android.view.Surface;
import android.view.View;

import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.core.graphics.ColorUtils;

import com.android.launcher3.BaseActivity;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.Utilities;
import com.android.launcher3.util.MainThreadInitializedObject;
import com.android.launcher3.util.SystemUiController;
import com.android.quickstep.TaskOverlayFactory.TaskOverlay;
import com.android.quickstep.views.TaskView.FullscreenDrawParams;
import com.android.systemui.shared.recents.model.Task;
import com.android.systemui.shared.recents.model.ThumbnailData;

/**
 * A task in the Recents view.
 */
public class TaskThumbnailView extends View {
    private static final MainThreadInitializedObject<FullscreenDrawParams> TEMP_PARAMS =
            new MainThreadInitializedObject<>(FullscreenDrawParams::new);

    public static final Property<TaskThumbnailView, Float> DIM_ALPHA =
            new FloatProperty<TaskThumbnailView>("dimAlpha") {
                @Override
                public void setValue(TaskThumbnailView thumbnail, float dimAlpha) {
                    thumbnail.setDimAlpha(dimAlpha);
                }

                @Override
                public Float get(TaskThumbnailView thumbnailView) {
                    return thumbnailView.mDimAlpha;
                }
            };

    private final BaseActivity mActivity;
    @Nullable
    private TaskOverlay mOverlay;
    private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    private final Paint mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    private final Paint mClearPaint = new Paint();
    private final Paint mDimmingPaintAfterClearing = new Paint();
    private final int mDimColor;

    // Contains the portion of the thumbnail that is clipped when fullscreen progress = 0.
    private final Rect mPreviewRect = new Rect();
    private final PreviewPositionHelper mPreviewPositionHelper = new PreviewPositionHelper();
    private TaskView.FullscreenDrawParams mFullscreenParams;

    @Nullable
    private Task mTask;
    @Nullable
    private ThumbnailData mThumbnailData;
    @Nullable
    protected BitmapShader mBitmapShader;

    /** How much this thumbnail is dimmed, 0 not dimmed at all, 1 totally dimmed. */
    private float mDimAlpha = 0f;

    private boolean mOverlayEnabled;

    public TaskThumbnailView(Context context) {
        this(context, null);
    }

    public TaskThumbnailView(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public TaskThumbnailView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mPaint.setFilterBitmap(true);
        mBackgroundPaint.setColor(Color.WHITE);
        mClearPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
        mActivity = BaseActivity.fromContext(context);
        // Initialize with placeholder value. It is overridden later by TaskView
        mFullscreenParams = TEMP_PARAMS.get(context);

        mDimColor = RecentsView.getForegroundScrimDimColor(context);
        mDimmingPaintAfterClearing.setColor(mDimColor);
    }

    /**
     * Updates the thumbnail to draw the provided task
     * @param task
     */
    public void bind(Task task) {
        getTaskOverlay().reset();
        mTask = task;
        int color = task == null ? Color.BLACK : task.colorBackground | 0xFF000000;
        mPaint.setColor(color);
        mBackgroundPaint.setColor(color);
    }

    /**
     * Updates the thumbnail.
     * @param refreshNow whether the {@code thumbnailData} will be used to redraw immediately.
     *                   In most cases, we use the {@link #setThumbnail(Task, ThumbnailData)}
     *                   version with {@code refreshNow} is true. The only exception is
     *                   in the live tile case that we grab a screenshot when user enters Overview
     *                   upon swipe up so that a usable screenshot is accessible immediately when
     *                   recents animation needs to be finished / cancelled.
     */
    public void setThumbnail(@Nullable Task task, @Nullable ThumbnailData thumbnailData,
            boolean refreshNow) {
        mTask = task;
        boolean thumbnailWasNull = mThumbnailData == null;
        mThumbnailData =
                (thumbnailData != null && thumbnailData.thumbnail != null) ? thumbnailData : null;
        if (refreshNow) {
            refresh(thumbnailWasNull && mThumbnailData != null);
        }
    }

    /** See {@link #setThumbnail(Task, ThumbnailData, boolean)} */
    public void setThumbnail(@Nullable Task task, @Nullable ThumbnailData thumbnailData) {
        setThumbnail(task, thumbnailData, true /* refreshNow */);
    }

    /** Updates the shader, paint, matrix to redraw. */
    public void refresh() {
        refresh(false);
    }

    /**
     * Updates the shader, paint, matrix to redraw.
     * @param shouldRefreshOverlay whether to re-initialize overlay
     */
    private void refresh(boolean shouldRefreshOverlay) {
        if (mThumbnailData != null && mThumbnailData.thumbnail != null) {
            Bitmap bm = mThumbnailData.thumbnail;
            bm.prepareToDraw();
            mBitmapShader = new BitmapShader(bm, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
            mPaint.setShader(mBitmapShader);
            updateThumbnailMatrix();
            if (shouldRefreshOverlay) {
                refreshOverlay();
            }
        } else {
            mBitmapShader = null;
            mThumbnailData = null;
            mPaint.setShader(null);
            getTaskOverlay().reset();
        }
        updateThumbnailPaintFilter();
    }

    /**
     * Sets the alpha of the dim layer on top of this view.
     * <p>
     * If dimAlpha is 0, no dimming is applied; if dimAlpha is 1, the thumbnail will be the
     * extracted background color.
     *
     */
    public void setDimAlpha(float dimAlpha) {
        mDimAlpha = dimAlpha;
        updateThumbnailPaintFilter();
    }

    public TaskOverlay getTaskOverlay() {
        if (mOverlay == null) {
            mOverlay = getTaskView().getRecentsView().getTaskOverlayFactory().createOverlay(this);
        }
        return mOverlay;
    }

    public float getDimAlpha() {
        return mDimAlpha;
    }

    /**
     * Get the scaled insets that are being used to draw the task view. This is a subsection of
     * the full snapshot.
     * @return the insets in snapshot bitmap coordinates.
     */
    @RequiresApi(api = Build.VERSION_CODES.Q)
    public Insets getScaledInsets() {
        if (mThumbnailData == null) {
            return Insets.NONE;
        }

        RectF bitmapRect = new RectF(
                0, 0,
                mThumbnailData.thumbnail.getWidth(), mThumbnailData.thumbnail.getHeight());
        RectF viewRect = new RectF(0, 0, getMeasuredWidth(), getMeasuredHeight());

        // The position helper matrix tells us how to transform the bitmap to fit the view, the
        // inverse tells us where the view would be in the bitmaps coordinates. The insets are the
        // difference between the bitmap bounds and the projected view bounds.
        Matrix boundsToBitmapSpace = new Matrix();
        mPreviewPositionHelper.getMatrix().invert(boundsToBitmapSpace);
        RectF boundsInBitmapSpace = new RectF();
        boundsToBitmapSpace.mapRect(boundsInBitmapSpace, viewRect);

        DeviceProfile dp = mActivity.getDeviceProfile();
        int leftInset = TaskView.clipLeft(dp) ? Math.round(boundsInBitmapSpace.left) : 0;
        int topInset = TaskView.clipTop(dp) ? Math.round(boundsInBitmapSpace.top) : 0;
        int rightInset = TaskView.clipRight(dp) ? Math.round(
                bitmapRect.right - boundsInBitmapSpace.right) : 0;
        int bottomInset = TaskView.clipBottom(dp)
                ? Math.round(bitmapRect.bottom - boundsInBitmapSpace.bottom) : 0;
        return Insets.of(leftInset, topInset, rightInset, bottomInset);
    }


    public int getSysUiStatusNavFlags() {
        if (mThumbnailData != null) {
            int flags = 0;
            flags |= (mThumbnailData.appearance & APPEARANCE_LIGHT_STATUS_BARS) != 0
                    ? SystemUiController.FLAG_LIGHT_STATUS
                    : SystemUiController.FLAG_DARK_STATUS;
            flags |= (mThumbnailData.appearance & APPEARANCE_LIGHT_NAVIGATION_BARS) != 0
                    ? SystemUiController.FLAG_LIGHT_NAV
                    : SystemUiController.FLAG_DARK_NAV;
            return flags;
        }
        return 0;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        RectF currentDrawnInsets = mFullscreenParams.mCurrentDrawnInsets;
        canvas.save();
        canvas.scale(mFullscreenParams.mScale, mFullscreenParams.mScale);
        canvas.translate(currentDrawnInsets.left, currentDrawnInsets.top);
        // Draw the insets if we're being drawn fullscreen (we do this for quick switch).
        drawOnCanvas(canvas,
                -currentDrawnInsets.left,
                -currentDrawnInsets.top,
                getMeasuredWidth() + currentDrawnInsets.right,
                getMeasuredHeight() + currentDrawnInsets.bottom,
                mFullscreenParams.mCurrentDrawnCornerRadius);
        canvas.restore();
    }

    public PreviewPositionHelper getPreviewPositionHelper() {
        return mPreviewPositionHelper;
    }

    public void setFullscreenParams(TaskView.FullscreenDrawParams fullscreenParams) {
        mFullscreenParams = fullscreenParams;
        invalidate();
    }

    public void drawOnCanvas(Canvas canvas, float x, float y, float width, float height,
            float cornerRadius) {
        if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
            if (mTask != null && getTaskView().isRunningTask() && !getTaskView().showScreenshot()) {
                // TODO(b/189265196): Temporary fix to align the surface with the cutout perfectly.
                // Round up only when the live tile task is displayed in Overview.
                float rounding = comp(mFullscreenParams.mFullscreenProgress);
                float left = x + rounding / 2;
                float top = y + rounding / 2;
                float right = width - rounding;
                float bottom = height - rounding;

                canvas.drawRoundRect(left, top, right, bottom, cornerRadius, cornerRadius,
                        mClearPaint);
                canvas.drawRoundRect(left, top, right, bottom, cornerRadius, cornerRadius,
                        mDimmingPaintAfterClearing);
                return;
            }
        }

        // Always draw the background since the snapshots might be translucent or partially empty
        // (For example, tasks been reparented out of dismissing split root when drag-to-dismiss
        // split screen).
        canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, mBackgroundPaint);

        final boolean drawBackgroundOnly = mTask == null || mTask.isLocked || mBitmapShader == null
                || mThumbnailData == null;
        if (drawBackgroundOnly) {
            return;
        }

        canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, mPaint);
    }

    public TaskView getTaskView() {
        return (TaskView) getParent();
    }

    public void setOverlayEnabled(boolean overlayEnabled) {
        if (mOverlayEnabled != overlayEnabled) {
            mOverlayEnabled = overlayEnabled;

            refreshOverlay();
        }
    }

    /**
     * Potentially re-init the task overlay. Be cautious when calling this as the overlay may
     * do processing on initialization.
     */
    private void refreshOverlay() {
        if (mOverlayEnabled) {
            getTaskOverlay().initOverlay(mTask, mThumbnailData, mPreviewPositionHelper.mMatrix,
                    mPreviewPositionHelper.mIsOrientationChanged);
        } else {
            getTaskOverlay().reset();
        }
    }

    private void updateThumbnailPaintFilter() {
        ColorFilter filter = getColorFilter(mDimAlpha);
        mBackgroundPaint.setColorFilter(filter);
        int alpha = (int) (mDimAlpha * 255);
        mDimmingPaintAfterClearing.setAlpha(alpha);
        if (mBitmapShader != null) {
            mPaint.setColorFilter(filter);
        } else {
            mPaint.setColorFilter(null);
            mPaint.setColor(ColorUtils.blendARGB(Color.BLACK, mDimColor, alpha));
        }
        invalidate();
    }

    private void updateThumbnailMatrix() {
        mPreviewPositionHelper.mIsOrientationChanged = false;
        if (mBitmapShader != null && mThumbnailData != null) {
            mPreviewRect.set(0, 0, mThumbnailData.thumbnail.getWidth(),
                    mThumbnailData.thumbnail.getHeight());
            int currentRotation = getTaskView().getRecentsView().getPagedViewOrientedState()
                    .getRecentsActivityRotation();
            boolean isRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
            mPreviewPositionHelper.updateThumbnailMatrix(mPreviewRect, mThumbnailData,
                    getMeasuredWidth(), getMeasuredHeight(), mActivity.getDeviceProfile(),
                    currentRotation, isRtl);

            mBitmapShader.setLocalMatrix(mPreviewPositionHelper.mMatrix);
            mPaint.setShader(mBitmapShader);
        }
        getTaskView().updateCurrentFullscreenParams(mPreviewPositionHelper);
        invalidate();
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        updateThumbnailMatrix();

        refreshOverlay();
    }

    private ColorFilter getColorFilter(float dimAmount) {
        return Utilities.makeColorTintingColorFilter(mDimColor, dimAmount);
    }

    /**
     * Returns current thumbnail or null if none is set.
     */
    @Nullable
    public Bitmap getThumbnail() {
        if (mThumbnailData == null) {
            return null;
        }
        return mThumbnailData.thumbnail;
    }

    /**
     * Returns whether the snapshot is real. If the device is locked for the user of the task,
     * the snapshot used will be an app-theme generated snapshot instead of a real snapshot.
     */
    public boolean isRealSnapshot() {
        if (mThumbnailData == null) {
            return false;
        }
        return mThumbnailData.isRealSnapshot && !mTask.isLocked;
    }

    /**
     * Utility class to position the thumbnail in the TaskView
     */
    public static class PreviewPositionHelper {

        private static final RectF EMPTY_RECT_F = new RectF();

        // Contains the portion of the thumbnail that is unclipped when fullscreen progress = 1.
        private final RectF mClippedInsets = new RectF();
        private final Matrix mMatrix = new Matrix();
        private boolean mIsOrientationChanged;

        public Matrix getMatrix() {
            return mMatrix;
        }

        /**
         * Updates the matrix based on the provided parameters
         */
        public void updateThumbnailMatrix(Rect thumbnailBounds, ThumbnailData thumbnailData,
                int canvasWidth, int canvasHeight, DeviceProfile dp, int currentRotation,
                boolean isRtl) {
            boolean isRotated = false;
            boolean isOrientationDifferent;

            int thumbnailRotation = thumbnailData.rotation;
            int deltaRotate = getRotationDelta(currentRotation, thumbnailRotation);
            RectF thumbnailClipHint = new RectF();
            if (TaskView.clipLeft(dp)) {
                thumbnailClipHint.left = thumbnailData.insets.left;
            }
            if (TaskView.clipRight(dp)) {
                thumbnailClipHint.right = thumbnailData.insets.right;
            }
            if (TaskView.clipTop(dp)) {
                thumbnailClipHint.top = thumbnailData.insets.top;
            }
            if (TaskView.clipBottom(dp)) {
                thumbnailClipHint.bottom = thumbnailData.insets.bottom;
            }

            float scale = thumbnailData.scale;
            final float thumbnailScale;

            // Landscape vs portrait change.
            // Note: Disable rotation in grid layout.
            boolean windowingModeSupportsRotation = !dp.isMultiWindowMode
                    && thumbnailData.windowingMode == WINDOWING_MODE_FULLSCREEN
                    && !dp.overviewShowAsGrid;
            isOrientationDifferent = isOrientationChange(deltaRotate)
                    && windowingModeSupportsRotation;
            if (canvasWidth == 0 || canvasHeight == 0 || scale == 0) {
                // If we haven't measured , skip the thumbnail drawing and only draw the background
                // color
                thumbnailScale = 0f;
            } else {
                // Rotate the screenshot if not in multi-window mode
                isRotated = deltaRotate > 0 && windowingModeSupportsRotation;

                float surfaceWidth = thumbnailBounds.width() / scale;
                float surfaceHeight = thumbnailBounds.height() / scale;
                float availableWidth = surfaceWidth
                        - (thumbnailClipHint.left + thumbnailClipHint.right);
                float availableHeight = surfaceHeight
                        - (thumbnailClipHint.top + thumbnailClipHint.bottom);

                float canvasAspect = canvasWidth / (float) canvasHeight;
                float availableAspect = isRotated
                        ? availableHeight / availableWidth
                        : availableWidth / availableHeight;
                boolean isAspectLargelyDifferent = Utilities.isRelativePercentDifferenceGreaterThan(
                        canvasAspect, availableAspect, 0.1f);
                if (isRotated && isAspectLargelyDifferent) {
                    // Do not rotate thumbnail if it would not improve fit
                    isRotated = false;
                    isOrientationDifferent = false;
                }

                if (isAspectLargelyDifferent) {
                    // Crop letterbox insets if insets isn't already clipped
                    if (!TaskView.clipLeft(dp)) {
                        thumbnailClipHint.left = thumbnailData.letterboxInsets.left;
                    }
                    if (!TaskView.clipRight(dp)) {
                        thumbnailClipHint.right = thumbnailData.letterboxInsets.right;
                    }
                    if (!TaskView.clipTop(dp)) {
                        thumbnailClipHint.top = thumbnailData.letterboxInsets.top;
                    }
                    if (!TaskView.clipBottom(dp)) {
                        thumbnailClipHint.bottom = thumbnailData.letterboxInsets.bottom;
                    }
                    availableWidth = surfaceWidth
                            - (thumbnailClipHint.left + thumbnailClipHint.right);
                    availableHeight = surfaceHeight
                            - (thumbnailClipHint.top + thumbnailClipHint.bottom);
                }

                final float targetW, targetH;
                if (isOrientationDifferent) {
                    targetW = canvasHeight;
                    targetH = canvasWidth;
                } else {
                    targetW = canvasWidth;
                    targetH = canvasHeight;
                }
                float targetAspect = targetW / targetH;

                // Update the clipHint such that
                //   > the final clipped position has same aspect ratio as requested by canvas
                //   > first fit the width and crop the extra height
                //   > if that will leave empty space, fit the height and crop the width instead
                float croppedWidth = availableWidth;
                float croppedHeight = croppedWidth / targetAspect;
                if (croppedHeight > availableHeight) {
                    croppedHeight = availableHeight;
                    if (croppedHeight < targetH) {
                        croppedHeight = Math.min(targetH, surfaceHeight);
                    }
                    croppedWidth = croppedHeight * targetAspect;

                    // One last check in case the task aspect radio messed up something
                    if (croppedWidth > surfaceWidth) {
                        croppedWidth = surfaceWidth;
                        croppedHeight = croppedWidth / targetAspect;
                    }
                }

                // Update the clip hints. Align to 0,0, crop the remaining.
                if (isRtl) {
                    thumbnailClipHint.left += availableWidth - croppedWidth;
                    if (thumbnailClipHint.right < 0) {
                        thumbnailClipHint.left += thumbnailClipHint.right;
                        thumbnailClipHint.right = 0;
                    }
                } else {
                    thumbnailClipHint.right += availableWidth - croppedWidth;
                    if (thumbnailClipHint.left < 0) {
                        thumbnailClipHint.right += thumbnailClipHint.left;
                        thumbnailClipHint.left = 0;
                    }
                }
                thumbnailClipHint.bottom += availableHeight - croppedHeight;
                if (thumbnailClipHint.top < 0) {
                    thumbnailClipHint.bottom += thumbnailClipHint.top;
                    thumbnailClipHint.top = 0;
                } else if (thumbnailClipHint.bottom < 0) {
                    thumbnailClipHint.top += thumbnailClipHint.bottom;
                    thumbnailClipHint.bottom = 0;
                }

                thumbnailScale = targetW / (croppedWidth * scale);
            }

            Rect splitScreenInsets = dp.getInsets();
            if (!isRotated) {
                // No Rotation
                if (dp.isMultiWindowMode) {
                    mClippedInsets.offsetTo(splitScreenInsets.left * scale,
                            splitScreenInsets.top * scale);
                } else {
                    mClippedInsets.offsetTo(thumbnailClipHint.left * scale,
                            thumbnailClipHint.top * scale);
                }
                mMatrix.setTranslate(
                        -thumbnailClipHint.left * scale,
                        -thumbnailClipHint.top * scale);
            } else {
                setThumbnailRotation(deltaRotate, thumbnailClipHint, scale, thumbnailBounds, dp);
            }

            final float widthWithInsets;
            final float heightWithInsets;
            if (isOrientationDifferent) {
                widthWithInsets = thumbnailBounds.height() * thumbnailScale;
                heightWithInsets = thumbnailBounds.width() * thumbnailScale;
            } else {
                widthWithInsets = thumbnailBounds.width() * thumbnailScale;
                heightWithInsets = thumbnailBounds.height() * thumbnailScale;
            }
            mClippedInsets.left *= thumbnailScale;
            mClippedInsets.top *= thumbnailScale;

            if (dp.isMultiWindowMode) {
                mClippedInsets.right = splitScreenInsets.right * scale * thumbnailScale;
                mClippedInsets.bottom = splitScreenInsets.bottom * scale * thumbnailScale;
            } else {
                mClippedInsets.right = Math.max(0,
                        widthWithInsets - mClippedInsets.left - canvasWidth);
                mClippedInsets.bottom = Math.max(0,
                        heightWithInsets - mClippedInsets.top - canvasHeight);
            }

            mMatrix.postScale(thumbnailScale, thumbnailScale);
            mIsOrientationChanged = isOrientationDifferent;
        }

        private int getRotationDelta(int oldRotation, int newRotation) {
            int delta = newRotation - oldRotation;
            if (delta < 0) delta += 4;
            return delta;
        }

        /**
         * @param deltaRotation the number of 90 degree turns from the current orientation
         * @return {@code true} if the change in rotation results in a shift from landscape to
         * portrait or vice versa, {@code false} otherwise
         */
        private boolean isOrientationChange(int deltaRotation) {
            return deltaRotation == Surface.ROTATION_90 || deltaRotation == Surface.ROTATION_270;
        }

        private void setThumbnailRotation(int deltaRotate, RectF thumbnailInsets, float scale,
                Rect thumbnailPosition, DeviceProfile dp) {
            float newLeftInset = 0;
            float newTopInset = 0;
            float translateX = 0;
            float translateY = 0;

            mMatrix.setRotate(90 * deltaRotate);
            switch (deltaRotate) { /* Counter-clockwise */
                case Surface.ROTATION_90:
                    newLeftInset = thumbnailInsets.bottom;
                    newTopInset = thumbnailInsets.left;
                    translateX = thumbnailPosition.height();
                    break;
                case Surface.ROTATION_270:
                    newLeftInset = thumbnailInsets.top;
                    newTopInset = thumbnailInsets.right;
                    translateY = thumbnailPosition.width();
                    break;
                case Surface.ROTATION_180:
                    newLeftInset = -thumbnailInsets.top;
                    newTopInset = -thumbnailInsets.left;
                    translateX = thumbnailPosition.width();
                    translateY = thumbnailPosition.height();
                    break;
            }
            mClippedInsets.offsetTo(newLeftInset * scale, newTopInset * scale);
            mMatrix.postTranslate(translateX, translateY);
            if (TaskView.useFullThumbnail(dp)) {
                mMatrix.postTranslate(-mClippedInsets.left, -mClippedInsets.top);
            }
        }

        /**
         * Insets to used for clipping the thumbnail (in case it is drawing outside its own space)
         */
        public RectF getInsetsToDrawInFullscreen(DeviceProfile dp) {
            return TaskView.useFullThumbnail(dp) ? mClippedInsets : EMPTY_RECT_F;
        }
    }
}