| /* |
| * 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.quickstep.util.NavigationModeFeatureFlag.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.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.config.FeatureFlags; |
| import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper; |
| 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.plugins.OverviewScreenshotActions; |
| import com.android.systemui.plugins.PluginListener; |
| 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 implements PluginListener<OverviewScreenshotActions> { |
| 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; |
| 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; |
| |
| private Task mTask; |
| private ThumbnailData mThumbnailData; |
| protected BitmapShader mBitmapShader; |
| |
| /** How much this thumbnail is dimmed, 0 not dimmed at all, 1 totally dimmed. */ |
| private float mDimAlpha = 0f; |
| |
| private boolean mOverlayEnabled; |
| private OverviewScreenshotActions mOverviewScreenshotActionsPlugin; |
| |
| public TaskThumbnailView(Context context) { |
| this(context, null); |
| } |
| |
| public TaskThumbnailView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public TaskThumbnailView(Context context, 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(Task task, ThumbnailData thumbnailData, boolean refreshNow) { |
| mTask = task; |
| mThumbnailData = |
| (thumbnailData != null && thumbnailData.thumbnail != null) ? thumbnailData : null; |
| if (refreshNow) { |
| refresh(); |
| } |
| } |
| |
| /** See {@link #setThumbnail(Task, ThumbnailData, boolean)} */ |
| public void setThumbnail(Task task, ThumbnailData thumbnailData) { |
| setThumbnail(task, thumbnailData, true /* refreshNow */); |
| } |
| |
| /** Updates the shader, paint, matrix to redraw. */ |
| public void refresh() { |
| 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(); |
| } else { |
| mBitmapShader = null; |
| mThumbnailData = null; |
| mPaint.setShader(null); |
| getTaskOverlay().reset(); |
| } |
| if (mOverviewScreenshotActionsPlugin != null) { |
| mOverviewScreenshotActionsPlugin.setupActions(getTaskView(), getThumbnail(), mActivity); |
| } |
| 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; |
| } |
| |
| if (!TaskView.CLIP_STATUS_AND_NAV_BARS) { |
| 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); |
| |
| return Insets.of( |
| Math.round(boundsInBitmapSpace.left), |
| Math.round(boundsInBitmapSpace.top), |
| Math.round(bitmapRect.right - boundsInBitmapSpace.right), |
| Math.round(bitmapRect.bottom - boundsInBitmapSpace.bottom)); |
| } |
| |
| |
| 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(); |
| } |
| |
| @Override |
| public void onPluginConnected(OverviewScreenshotActions overviewScreenshotActions, |
| Context context) { |
| mOverviewScreenshotActionsPlugin = overviewScreenshotActions; |
| mOverviewScreenshotActionsPlugin.setupActions(getTaskView(), getThumbnail(), mActivity); |
| } |
| |
| @Override |
| public void onPluginDisconnected(OverviewScreenshotActions plugin) { |
| if (mOverviewScreenshotActionsPlugin != null) { |
| mOverviewScreenshotActionsPlugin = null; |
| } |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| PluginManagerWrapper.INSTANCE.get(getContext()) |
| .addPluginListener(this, OverviewScreenshotActions.class); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| PluginManagerWrapper.INSTANCE.get(getContext()).removePluginListener(this); |
| } |
| |
| 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 (LIVE_TILE.get()) { |
| if (mTask != null && getTaskView().isRunningTask() && !getTaskView().showScreenshot()) { |
| canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, mClearPaint); |
| canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, |
| mDimmingPaintAfterClearing); |
| return; |
| } |
| } |
| |
| // Draw the background in all cases, except when the thumbnail data is opaque |
| final boolean drawBackgroundOnly = mTask == null || mTask.isLocked || mBitmapShader == null |
| || mThumbnailData == null; |
| if (drawBackgroundOnly || mThumbnailData.isTranslucent) { |
| canvas.drawRoundRect(x, y, width, height, cornerRadius, cornerRadius, mBackgroundPaint); |
| 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); |
| } |
| |
| 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 { |
| |
| // Contains the portion of the thumbnail that is clipped when fullscreen progress = 0. |
| 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 = TaskView.CLIP_STATUS_AND_NAV_BARS |
| ? new RectF(thumbnailData.insets) : new RectF(); |
| |
| 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.isTablet && FeatureFlags.ENABLE_OVERVIEW_GRID.get()); |
| 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); |
| |
| if (isRotated) { |
| float canvasAspect = canvasWidth / (float) canvasHeight; |
| float availableAspect = availableHeight / availableWidth; |
| // Do not rotate thumbnail if it would not improve fit |
| if (Utilities.isRelativePercentDifferenceGreaterThan(canvasAspect, |
| availableAspect, 0.1f)) { |
| isRotated = false; |
| isOrientationDifferent = false; |
| } |
| } |
| |
| final float targetW, targetH; |
| if (isOrientationDifferent) { |
| targetW = canvasHeight; |
| targetH = canvasWidth; |
| } else { |
| targetW = canvasWidth; |
| targetH = canvasHeight; |
| } |
| float canvasAspect = targetW / targetH; |
| |
| // Update the clipHint such that |
| // > the final clipped position has same aspect ratio as requested by canvas |
| // > the clipped region is within the task insets if possible |
| // > the clipped region is not scaled up when drawing. If that is not possible |
| // while staying within the taskInsets, move outside the insets. |
| float croppedWidth = availableWidth; |
| if (croppedWidth < targetW) { |
| croppedWidth = Math.min(targetW, surfaceWidth); |
| } |
| |
| float croppedHeight = croppedWidth / canvasAspect; |
| if (croppedHeight > availableHeight) { |
| croppedHeight = availableHeight; |
| if (croppedHeight < targetH) { |
| croppedHeight = Math.min(targetH, surfaceHeight); |
| } |
| croppedWidth = croppedHeight * canvasAspect; |
| |
| // One last check in case the task aspect radio messed up something |
| if (croppedWidth > surfaceWidth) { |
| croppedWidth = surfaceWidth; |
| croppedHeight = croppedWidth / canvasAspect; |
| } |
| } |
| |
| // 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); |
| } |
| |
| 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) { |
| 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 - mClippedInsets.left, |
| translateY - mClippedInsets.top); |
| } |
| |
| /** |
| * Insets to used for clipping the thumbnail (in case it is drawing outside its own space) |
| */ |
| public RectF getInsetsToDrawInFullscreen() { |
| return mClippedInsets; |
| } |
| } |
| } |
