src/com/android/launcher3/views/ClipIconView.java - LeafOS-Project/android_packages_apps_Launcher3 - Gitiles

 /*
  * Copyright (C) 2020 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.launcher3.views;

 import static com.android.app.animation.Interpolators.LINEAR;
 import static com.android.launcher3.Utilities.boundToRange;
 import static com.android.launcher3.Utilities.mapToRange;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;

 import static java.lang.Math.max;

 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Outline;
 import android.graphics.Path;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.drawable.AdaptiveIconDrawable;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.ViewGroup.MarginLayoutParams;
 import android.view.ViewOutlineProvider;

 import androidx.annotation.Nullable;

 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
 import com.android.launcher3.graphics.IconShape;

 /**
  * A view used to draw both layers of an {@link AdaptiveIconDrawable}.
  * Supports springing just the foreground layer.
  * Supports clipping the icon to/from its icon shape.
  */
 public class ClipIconView extends View implements ClipPathView {

     private static final Rect sTmpRect = new Rect();

     private final int mBlurSizeOutline;
     private final boolean mIsRtl;

     private @Nullable Drawable mForeground;
     private @Nullable Drawable mBackground;

     private boolean mIsAdaptiveIcon = false;

     private ValueAnimator mRevealAnimator;

     private final Rect mStartRevealRect = new Rect();
     private final Rect mEndRevealRect = new Rect();
     private Path mClipPath;
     private float mTaskCornerRadius;

     private final Rect mOutline = new Rect();
     private final Rect mFinalDrawableBounds = new Rect();

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

     public ClipIconView(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }

     public ClipIconView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         mBlurSizeOutline = getResources().getDimensionPixelSize(
                 R.dimen.blur_size_medium_outline);
         mIsRtl = Utilities.isRtl(getResources());
     }

     /**
      * Update the icon UI to match the provided parameters during an animation frame
      */
     public void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius,
             boolean isOpening, View container, DeviceProfile dp) {
         MarginLayoutParams lp = (MarginLayoutParams) container.getLayoutParams();

         float dX = mIsRtl
                 ? rect.left - (dp.widthPx - lp.getMarginStart() - lp.width)
                 : rect.left - lp.getMarginStart();
         float dY = rect.top - lp.topMargin;
         container.setTranslationX(dX);
         container.setTranslationY(dY);

         float minSize = Math.min(lp.width, lp.height);
         float scaleX = rect.width() / minSize;
         float scaleY = rect.height() / minSize;
         float scale = Math.max(1f, Math.min(scaleX, scaleY));

         if (Float.isNaN(scale) || Float.isInfinite(scale)) {
             // Views are no longer laid out, do not update.
             return;
         }

         update(rect, progress, shapeProgressStart, cornerRadius, isOpening, scale, minSize, dp);

         container.setPivotX(0);
         container.setPivotY(0);
         container.setScaleX(scale);
         container.setScaleY(scale);

         container.invalidate();
     }

     private void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius,
             boolean isOpening, float scale, float minSize, DeviceProfile dp) {
         // shapeRevealProgress = 1 when progress = shapeProgressStart + SHAPE_PROGRESS_DURATION
         float toMax = isOpening ? 1 / SHAPE_PROGRESS_DURATION : 1f;

         float shapeRevealProgress = boundToRange(mapToRange(max(shapeProgressStart, progress),
                 shapeProgressStart, 1f, 0, toMax, LINEAR), 0, 1);

         if (dp.isLandscape) {
             mOutline.right = (int) (rect.width() / scale);
         } else {
             mOutline.bottom = (int) (rect.height() / scale);
         }

         mTaskCornerRadius = cornerRadius / scale;
         if (mIsAdaptiveIcon) {
             if (!isOpening && progress >= shapeProgressStart) {
                 if (mRevealAnimator == null) {
                     mRevealAnimator = (ValueAnimator) IconShape.getShape().createRevealAnimator(
                             this, mStartRevealRect, mOutline, mTaskCornerRadius, !isOpening);
                     mRevealAnimator.addListener(new AnimatorListenerAdapter() {
                         @Override
                         public void onAnimationEnd(Animator animation) {
                             mRevealAnimator = null;
                         }
                     });
                     mRevealAnimator.start();
                     // We pause here so we can set the current fraction ourselves.
                     mRevealAnimator.pause();
                 }
                 mRevealAnimator.setCurrentFraction(shapeRevealProgress);
             }

             float drawableScale = (dp.isLandscape ? mOutline.width() : mOutline.height())
                     / minSize;
             setBackgroundDrawableBounds(drawableScale, dp.isLandscape);

             // Center align foreground
             int height = mFinalDrawableBounds.height();
             int width = mFinalDrawableBounds.width();
             int diffY = dp.isLandscape ? 0
                     : (int) (((height * drawableScale) - height) / 2);
             int diffX = dp.isLandscape ? (int) (((width * drawableScale) - width) / 2)
                     : 0;
             sTmpRect.set(mFinalDrawableBounds);
             sTmpRect.offset(diffX, diffY);
             mForeground.setBounds(sTmpRect);
         }
         invalidate();
         invalidateOutline();
     }

     private void setBackgroundDrawableBounds(float scale, boolean isLandscape) {
         sTmpRect.set(mFinalDrawableBounds);
         Utilities.scaleRectAboutCenter(sTmpRect, scale);
         // Since the drawable is at the top of the view, we need to offset to keep it centered.
         if (isLandscape) {
             sTmpRect.offsetTo((int) (mFinalDrawableBounds.left * scale), sTmpRect.top);
         } else {
             sTmpRect.offsetTo(sTmpRect.left, (int) (mFinalDrawableBounds.top * scale));
         }
         mBackground.setBounds(sTmpRect);
     }

     protected void endReveal() {
         if (mRevealAnimator != null) {
             mRevealAnimator.end();
         }
     }

     /**
      * Sets the icon for this view as part of initial setup
      */
     public void setIcon(@Nullable Drawable drawable, int iconOffset, MarginLayoutParams lp,
             boolean isOpening, DeviceProfile dp) {
         mIsAdaptiveIcon = drawable instanceof AdaptiveIconDrawable;
         if (mIsAdaptiveIcon) {
             boolean isFolderIcon = drawable instanceof FolderAdaptiveIcon;

             AdaptiveIconDrawable adaptiveIcon = (AdaptiveIconDrawable) drawable;
             Drawable background = adaptiveIcon.getBackground();
             if (background == null) {
                 background = new ColorDrawable(Color.TRANSPARENT);
             }
             mBackground = background;
             Drawable foreground = adaptiveIcon.getForeground();
             if (foreground == null) {
                 foreground = new ColorDrawable(Color.TRANSPARENT);
             }
             mForeground = foreground;

             final int originalHeight = lp.height;
             final int originalWidth = lp.width;

             int blurMargin = mBlurSizeOutline / 2;
             mFinalDrawableBounds.set(0, 0, originalWidth, originalHeight);

             if (!isFolderIcon) {
                 mFinalDrawableBounds.inset(iconOffset - blurMargin, iconOffset - blurMargin);
             }
             mForeground.setBounds(mFinalDrawableBounds);
             mBackground.setBounds(mFinalDrawableBounds);

             mStartRevealRect.set(0, 0, originalWidth, originalHeight);

             if (!isFolderIcon) {
                 Utilities.scaleRectAboutCenter(mStartRevealRect, IconShape.getNormalizationScale());
             }

             if (dp.isLandscape) {
                 lp.width = (int) Math.max(lp.width, lp.height * dp.aspectRatio);
             } else {
                 lp.height = (int) Math.max(lp.height, lp.width * dp.aspectRatio);
             }

             int left = mIsRtl
                     ? dp.widthPx - lp.getMarginStart() - lp.width
                     : lp.leftMargin;
             layout(left, lp.topMargin, left + lp.width, lp.topMargin + lp.height);

             float scale = Math.max((float) lp.height / originalHeight,
                     (float) lp.width / originalWidth);
             float bgDrawableStartScale;
             if (isOpening) {
                 bgDrawableStartScale = 1f;
                 mOutline.set(0, 0, originalWidth, originalHeight);
             } else {
                 bgDrawableStartScale = scale;
                 mOutline.set(0, 0, lp.width, lp.height);
             }
             setBackgroundDrawableBounds(bgDrawableStartScale, dp.isLandscape);
             mEndRevealRect.set(0, 0, lp.width, lp.height);
             setOutlineProvider(new ViewOutlineProvider() {
                 @Override
                 public void getOutline(View view, Outline outline) {
                     outline.setRoundRect(mOutline, mTaskCornerRadius);
                 }
             });
             setClipToOutline(true);
         } else {
             setBackground(drawable);
             setClipToOutline(false);
         }

         invalidate();
         invalidateOutline();
     }

     @Override
     public void setClipPath(Path clipPath) {
         mClipPath = clipPath;
         invalidate();
     }

     @Override
     public void draw(Canvas canvas) {
         int count = canvas.save();
         if (mClipPath != null) {
             canvas.clipPath(mClipPath);
         }
         super.draw(canvas);
         if (mBackground != null) {
             mBackground.draw(canvas);
         }
         if (mForeground != null) {
             mForeground.draw(canvas);
         }
         canvas.restoreToCount(count);
     }

     void recycle() {
         setBackground(null);
         mIsAdaptiveIcon = false;
         mForeground = null;
         mBackground = null;
         mClipPath = null;
         mFinalDrawableBounds.setEmpty();
         if (mRevealAnimator != null) {
             mRevealAnimator.cancel();
         }
         mRevealAnimator = null;
         mTaskCornerRadius = 0;
         mOutline.setEmpty();
     }
 }
	/*
	* Copyright (C) 2020 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.launcher3.views;

	import static com.android.app.animation.Interpolators.LINEAR;
	import static com.android.launcher3.Utilities.boundToRange;
	import static com.android.launcher3.Utilities.mapToRange;
	import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;

	import static java.lang.Math.max;

	import android.animation.Animator;
	import android.animation.AnimatorListenerAdapter;
	import android.animation.ValueAnimator;
	import android.content.Context;
	import android.graphics.Canvas;
	import android.graphics.Color;
	import android.graphics.Outline;
	import android.graphics.Path;
	import android.graphics.Rect;
	import android.graphics.RectF;
	import android.graphics.drawable.AdaptiveIconDrawable;
	import android.graphics.drawable.ColorDrawable;
	import android.graphics.drawable.Drawable;
	import android.util.AttributeSet;
	import android.view.View;
	import android.view.ViewGroup.MarginLayoutParams;
	import android.view.ViewOutlineProvider;

	import androidx.annotation.Nullable;

	import com.android.launcher3.DeviceProfile;
	import com.android.launcher3.R;
	import com.android.launcher3.Utilities;
	import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
	import com.android.launcher3.graphics.IconShape;

	/**
	* A view used to draw both layers of an {@link AdaptiveIconDrawable}.
	* Supports springing just the foreground layer.
	* Supports clipping the icon to/from its icon shape.
	*/
	public class ClipIconView extends View implements ClipPathView {

	private static final Rect sTmpRect = new Rect();

	private final int mBlurSizeOutline;
	private final boolean mIsRtl;

	private @Nullable Drawable mForeground;
	private @Nullable Drawable mBackground;

	private boolean mIsAdaptiveIcon = false;

	private ValueAnimator mRevealAnimator;

	private final Rect mStartRevealRect = new Rect();
	private final Rect mEndRevealRect = new Rect();
	private Path mClipPath;
	private float mTaskCornerRadius;

	private final Rect mOutline = new Rect();
	private final Rect mFinalDrawableBounds = new Rect();

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

	public ClipIconView(Context context, AttributeSet attrs) {
	this(context, attrs, 0);
	}

	public ClipIconView(Context context, AttributeSet attrs, int defStyleAttr) {
	super(context, attrs, defStyleAttr);
	mBlurSizeOutline = getResources().getDimensionPixelSize(
	R.dimen.blur_size_medium_outline);
	mIsRtl = Utilities.isRtl(getResources());
	}

	/**
	* Update the icon UI to match the provided parameters during an animation frame
	*/
	public void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius,
	boolean isOpening, View container, DeviceProfile dp) {
	MarginLayoutParams lp = (MarginLayoutParams) container.getLayoutParams();

	float dX = mIsRtl
	? rect.left - (dp.widthPx - lp.getMarginStart() - lp.width)
	: rect.left - lp.getMarginStart();
	float dY = rect.top - lp.topMargin;
	container.setTranslationX(dX);
	container.setTranslationY(dY);

	float minSize = Math.min(lp.width, lp.height);
	float scaleX = rect.width() / minSize;
	float scaleY = rect.height() / minSize;
	float scale = Math.max(1f, Math.min(scaleX, scaleY));

	if (Float.isNaN(scale) \|\| Float.isInfinite(scale)) {
	// Views are no longer laid out, do not update.
	return;
	}

	update(rect, progress, shapeProgressStart, cornerRadius, isOpening, scale, minSize, dp);

	container.setPivotX(0);
	container.setPivotY(0);
	container.setScaleX(scale);
	container.setScaleY(scale);

	container.invalidate();
	}

	private void update(RectF rect, float progress, float shapeProgressStart, float cornerRadius,
	boolean isOpening, float scale, float minSize, DeviceProfile dp) {
	// shapeRevealProgress = 1 when progress = shapeProgressStart + SHAPE_PROGRESS_DURATION
	float toMax = isOpening ? 1 / SHAPE_PROGRESS_DURATION : 1f;

	float shapeRevealProgress = boundToRange(mapToRange(max(shapeProgressStart, progress),
	shapeProgressStart, 1f, 0, toMax, LINEAR), 0, 1);

	if (dp.isLandscape) {
	mOutline.right = (int) (rect.width() / scale);
	} else {
	mOutline.bottom = (int) (rect.height() / scale);
	}

	mTaskCornerRadius = cornerRadius / scale;
	if (mIsAdaptiveIcon) {
	if (!isOpening && progress >= shapeProgressStart) {
	if (mRevealAnimator == null) {
	mRevealAnimator = (ValueAnimator) IconShape.getShape().createRevealAnimator(
	this, mStartRevealRect, mOutline, mTaskCornerRadius, !isOpening);
	mRevealAnimator.addListener(new AnimatorListenerAdapter() {
	@Override
	public void onAnimationEnd(Animator animation) {
	mRevealAnimator = null;
	}
	});
	mRevealAnimator.start();
	// We pause here so we can set the current fraction ourselves.
	mRevealAnimator.pause();
	}
	mRevealAnimator.setCurrentFraction(shapeRevealProgress);
	}

	float drawableScale = (dp.isLandscape ? mOutline.width() : mOutline.height())
	/ minSize;
	setBackgroundDrawableBounds(drawableScale, dp.isLandscape);

	// Center align foreground
	int height = mFinalDrawableBounds.height();
	int width = mFinalDrawableBounds.width();
	int diffY = dp.isLandscape ? 0
	: (int) (((height * drawableScale) - height) / 2);
	int diffX = dp.isLandscape ? (int) (((width * drawableScale) - width) / 2)
	: 0;
	sTmpRect.set(mFinalDrawableBounds);
	sTmpRect.offset(diffX, diffY);
	mForeground.setBounds(sTmpRect);
	}
	invalidate();
	invalidateOutline();
	}

	private void setBackgroundDrawableBounds(float scale, boolean isLandscape) {
	sTmpRect.set(mFinalDrawableBounds);
	Utilities.scaleRectAboutCenter(sTmpRect, scale);
	// Since the drawable is at the top of the view, we need to offset to keep it centered.
	if (isLandscape) {
	sTmpRect.offsetTo((int) (mFinalDrawableBounds.left * scale), sTmpRect.top);
	} else {
	sTmpRect.offsetTo(sTmpRect.left, (int) (mFinalDrawableBounds.top * scale));
	}
	mBackground.setBounds(sTmpRect);
	}

	protected void endReveal() {
	if (mRevealAnimator != null) {
	mRevealAnimator.end();
	}
	}

	/**
	* Sets the icon for this view as part of initial setup
	*/
	public void setIcon(@Nullable Drawable drawable, int iconOffset, MarginLayoutParams lp,
	boolean isOpening, DeviceProfile dp) {
	mIsAdaptiveIcon = drawable instanceof AdaptiveIconDrawable;
	if (mIsAdaptiveIcon) {
	boolean isFolderIcon = drawable instanceof FolderAdaptiveIcon;

	AdaptiveIconDrawable adaptiveIcon = (AdaptiveIconDrawable) drawable;
	Drawable background = adaptiveIcon.getBackground();
	if (background == null) {
	background = new ColorDrawable(Color.TRANSPARENT);
	}
	mBackground = background;
	Drawable foreground = adaptiveIcon.getForeground();
	if (foreground == null) {
	foreground = new ColorDrawable(Color.TRANSPARENT);
	}
	mForeground = foreground;

	final int originalHeight = lp.height;
	final int originalWidth = lp.width;

	int blurMargin = mBlurSizeOutline / 2;
	mFinalDrawableBounds.set(0, 0, originalWidth, originalHeight);

	if (!isFolderIcon) {
	mFinalDrawableBounds.inset(iconOffset - blurMargin, iconOffset - blurMargin);
	}
	mForeground.setBounds(mFinalDrawableBounds);
	mBackground.setBounds(mFinalDrawableBounds);

	mStartRevealRect.set(0, 0, originalWidth, originalHeight);

	if (!isFolderIcon) {
	Utilities.scaleRectAboutCenter(mStartRevealRect, IconShape.getNormalizationScale());
	}

	if (dp.isLandscape) {
	lp.width = (int) Math.max(lp.width, lp.height * dp.aspectRatio);
	} else {
	lp.height = (int) Math.max(lp.height, lp.width * dp.aspectRatio);
	}

	int left = mIsRtl
	? dp.widthPx - lp.getMarginStart() - lp.width
	: lp.leftMargin;
	layout(left, lp.topMargin, left + lp.width, lp.topMargin + lp.height);

	float scale = Math.max((float) lp.height / originalHeight,
	(float) lp.width / originalWidth);
	float bgDrawableStartScale;
	if (isOpening) {
	bgDrawableStartScale = 1f;
	mOutline.set(0, 0, originalWidth, originalHeight);
	} else {
	bgDrawableStartScale = scale;
	mOutline.set(0, 0, lp.width, lp.height);
	}
	setBackgroundDrawableBounds(bgDrawableStartScale, dp.isLandscape);
	mEndRevealRect.set(0, 0, lp.width, lp.height);
	setOutlineProvider(new ViewOutlineProvider() {
	@Override
	public void getOutline(View view, Outline outline) {
	outline.setRoundRect(mOutline, mTaskCornerRadius);
	}
	});
	setClipToOutline(true);
	} else {
	setBackground(drawable);
	setClipToOutline(false);
	}

	invalidate();
	invalidateOutline();
	}

	@Override
	public void setClipPath(Path clipPath) {
	mClipPath = clipPath;
	invalidate();
	}

	@Override
	public void draw(Canvas canvas) {
	int count = canvas.save();
	if (mClipPath != null) {
	canvas.clipPath(mClipPath);
	}
	super.draw(canvas);
	if (mBackground != null) {
	mBackground.draw(canvas);
	}
	if (mForeground != null) {
	mForeground.draw(canvas);
	}
	canvas.restoreToCount(count);
	}

	void recycle() {
	setBackground(null);
	mIsAdaptiveIcon = false;
	mForeground = null;
	mBackground = null;
	mClipPath = null;
	mFinalDrawableBounds.setEmpty();
	if (mRevealAnimator != null) {
	mRevealAnimator.cancel();
	}
	mRevealAnimator = null;
	mTaskCornerRadius = 0;
	mOutline.setEmpty();
	}
	}