Merge "Creating delegate interface for fastbitmap drawable" into main (900552ab) · Commits · e / os / android_frameworks_libs_systemui

iconloaderlib/Android.bp

+6 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,9 @@ android_library {
		"src/*/.java",
		"src/*/.kt",
		],
		kotlincflags: [
		"-Xjvm-default=all",
		],
		}

		android_library {
		@@ -56,4 +59,7 @@ android_library {
		"//apex_available:platform",
		"com.android.permission",
		],
		kotlincflags: [
		"-Xjvm-default=all",
		],
		}

iconloaderlib/src/com/android/launcher3/icons/BitmapInfo.kt

+35 −40

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ import android.graphics.drawable.Drawable
		import androidx.annotation.ColorRes
		import androidx.annotation.DrawableRes
		import androidx.annotation.IntDef
		import com.android.launcher3.icons.PlaceHolderDrawableDelegate.PlaceHolderDelegateFactory
		import com.android.launcher3.icons.cache.CacheLookupFlag
		import com.android.launcher3.util.FlagOp

		@@ -110,7 +111,7 @@ open class BitmapInfo(
		): FastBitmapDrawable {
		val drawable: FastBitmapDrawable =
		if (isLowRes) {
		PlaceHolderIconDrawable(this, context)
		FastBitmapDrawable(this, PlaceHolderDelegateFactory(context))
		} else if (
		(creationFlags and FLAG_THEMED) != 0 &&
		themedBitmap != null &&
		@@ -125,16 +126,21 @@ open class BitmapInfo(
		}

		protected fun applyFlags(
		context: Context, drawable: FastBitmapDrawable,
		@DrawableCreationFlags creationFlags: Int, badgeShape: Path?
		context: Context,
		drawable: FastBitmapDrawable,
		@DrawableCreationFlags creationFlags: Int,
		badgeShape: Path?,
		) {
		this.creationFlags = creationFlags
		drawable.disabledAlpha = GraphicsUtils.getFloat(context, R.attr.disabledIconAlpha, 1f)
		drawable.creationFlags = creationFlags
		if ((creationFlags and FLAG_NO_BADGE) == 0) {
		val badge = getBadgeDrawable(
		context, (creationFlags and FLAG_THEMED) != 0,
		(creationFlags and FLAG_SKIP_USER_BADGE) != 0, badgeShape
		val badge =
		getBadgeDrawable(
		context,
		(creationFlags and FLAG_THEMED) != 0,
		(creationFlags and FLAG_SKIP_USER_BADGE) != 0,
		badgeShape,
		)
		if (badge != null) {
		drawable.badge = badge
		@@ -156,6 +162,7 @@ open class BitmapInfo(

		/**
		* Creates a Drawable for an icon badge for this BitmapInfo
		*
		* @param context Context
		* @param isThemed If the drawable is themed.
		* @param skipUserBadge If should skip User Profile badging.
		@@ -163,7 +170,10 @@ open class BitmapInfo(
		* @return Drawable for an icon Badge.
		*/
		private fun getBadgeDrawable(
		context: Context, isThemed: Boolean, skipUserBadge: Boolean, badgeShape: Path?
		context: Context,
		isThemed: Boolean,
		skipUserBadge: Boolean,
		badgeShape: Path?,
		): Drawable? {
		if (badgeInfo != null) {
		var creationFlag = if (isThemed) FLAG_THEMED else 0
		@@ -176,44 +186,30 @@ open class BitmapInfo(
		return null
		} else {
		getBadgeDrawableInfo()?.let {
		return UserBadgeDrawable(
		context,
		it.drawableRes,
		it.colorRes,
		isThemed,
		badgeShape
		)
		return UserBadgeDrawable(context, it.drawableRes, it.colorRes, isThemed, badgeShape)
		}
		}
		return null
		}

		/**
		* Returns information about the badge to apply based on current flags.
		*/
		/** Returns information about the badge to apply based on current flags. */
		fun getBadgeDrawableInfo(): BadgeDrawableInfo? {
		return when {
		(flags and FLAG_INSTANT) != 0 -> BadgeDrawableInfo(
		R.drawable.ic_instant_app_badge,
		R.color.badge_tint_instant
		)
		(flags and FLAG_WORK) != 0 -> BadgeDrawableInfo(
		R.drawable.ic_work_app_badge,
		R.color.badge_tint_work
		)
		(flags and FLAG_CLONE) != 0 -> BadgeDrawableInfo(
		R.drawable.ic_clone_app_badge,
		R.color.badge_tint_clone
		)
		(flags and FLAG_PRIVATE) != 0 -> BadgeDrawableInfo(
		(flags and FLAG_INSTANT) != 0 ->
		BadgeDrawableInfo(R.drawable.ic_instant_app_badge, R.color.badge_tint_instant)
		(flags and FLAG_WORK) != 0 ->
		BadgeDrawableInfo(R.drawable.ic_work_app_badge, R.color.badge_tint_work)
		(flags and FLAG_CLONE) != 0 ->
		BadgeDrawableInfo(R.drawable.ic_clone_app_badge, R.color.badge_tint_clone)
		(flags and FLAG_PRIVATE) != 0 ->
		BadgeDrawableInfo(
		R.drawable.ic_private_profile_app_badge,
		R.color.badge_tint_private
		R.color.badge_tint_private,
		)
		else -> null
		}
		}


		/** Interface to be implemented by drawables to provide a custom BitmapInfo */
		interface Extender {
		/** Called for creating a custom BitmapInfo */
		@@ -230,13 +226,14 @@ open class BitmapInfo(

		/**
		* Drawables backing a specific badge shown on app icons.
		*
		* @param drawableRes Drawable resource for the badge.
		* @param colorRes Color resource to tint the badge.
		*/
		@JvmRecord
		data class BadgeDrawableInfo(
		@field:DrawableRes @param:DrawableRes val drawableRes: Int,
		@field:ColorRes @param:ColorRes val colorRes: Int
		@field:ColorRes @param:ColorRes val colorRes: Int,
		)

		companion object {
		@@ -254,10 +251,8 @@ open class BitmapInfo(
		const val FLAG_NO_BADGE: Int = 1 shl 1
		const val FLAG_SKIP_USER_BADGE: Int = 1 shl 2

		@JvmField
		val LOW_RES_ICON: Bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8)
		@JvmField
		val LOW_RES_INFO: BitmapInfo = fromBitmap(LOW_RES_ICON)
		@JvmField val LOW_RES_ICON: Bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8)
		@JvmField val LOW_RES_INFO: BitmapInfo = fromBitmap(LOW_RES_ICON)

		@JvmStatic
		fun fromBitmap(bitmap: Bitmap): BitmapInfo {

iconloaderlib/src/com/android/launcher3/icons/ClockDrawableWrapper.java

+48 −64

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		*/
		package com.android.launcher3.icons;

		import static com.android.launcher3.icons.FastBitmapDrawable.FULLY_OPAQUE;
		import static com.android.launcher3.icons.FastBitmapDrawable.getDisabledColorFilter;
		import static com.android.launcher3.icons.IconProvider.ATLEAST_T;
		import static com.android.launcher3.icons.cache.CacheLookupFlag.DEFAULT_LOOKUP_FLAG;

		@@ -41,8 +43,11 @@ import android.os.Bundle;
		import android.os.SystemClock;
		import android.util.Log;

		import androidx.annotation.NonNull;

		import com.android.launcher3.icons.FastBitmapDrawableDelegate.DelegateFactory;
		import com.android.launcher3.icons.cache.CacheLookupFlag;
		import com.android.launcher3.icons.mono.ThemedIconDrawable;
		import com.android.launcher3.icons.mono.ThemedIconDelegate;

		import java.util.Calendar;
		import java.util.concurrent.TimeUnit;
		@@ -292,7 +297,7 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		int themedFgColor;
		ColorFilter bgFilter;
		if ((creationFlags & FLAG_THEMED) != 0 && themeData != null) {
		int[] colors = ThemedIconDrawable.getColors(context);
		int[] colors = ThemedIconDelegate.getColors(context);
		Drawable tintedDrawable = themeData.baseDrawableState.newDrawable().mutate();
		themedFgColor = colors[1];
		tintedDrawable.setTint(colors[1]);
		@@ -308,9 +313,10 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		if (info == null) {
		return super.newIcon(context, creationFlags);
		}
		ClockIconDrawable.ClockConstantState cs = new ClockIconDrawable.ClockConstantState(
		this, themedFgColor, boundsOffset, info, bg, bgFilter);
		FastBitmapDrawable d = cs.newDrawable();

		ClockDelegateInfo delegateInfo =
		new ClockDelegateInfo(themedFgColor, boundsOffset, animInfo, bg, bgFilter);
		FastBitmapDrawable d = new FastBitmapDrawable(this, delegateInfo);
		applyFlags(context, d, creationFlags, null);
		return d;
		}
		@@ -333,10 +339,23 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		}
		}

		private static class ClockIconDrawable extends FastBitmapDrawable implements Runnable {
		private record ClockDelegateInfo(
		int themeFgColor, float boundsOffset, AnimationInfo animInfo, Bitmap bg,
		ColorFilter bgFilter) implements DelegateFactory {

		@NonNull
		@Override
		public FastBitmapDrawableDelegate newDelegate(@NonNull BitmapInfo bitmapInfo,
		@NonNull Paint paint, @NonNull FastBitmapDrawable host) {
		return new ClockDrawableDelegate(this, host);
		}
		}

		private static class ClockDrawableDelegate implements FastBitmapDrawableDelegate, Runnable {

		private final Calendar mTime = Calendar.getInstance();

		private final FastBitmapDrawable mHost;
		private final float mBoundsOffset;
		private final AnimationInfo mAnimInfo;

		@@ -349,15 +368,15 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		private final LayerDrawable mFG;
		private final float mCanvasScale;

		ClockIconDrawable(ClockConstantState cs) {
		super(cs.getBitmapInfo());
		mBoundsOffset = cs.mBoundsOffset;
		mAnimInfo = cs.mAnimInfo;
		ClockDrawableDelegate(ClockDelegateInfo cs, FastBitmapDrawable host) {
		mHost = host;
		mBoundsOffset = cs.boundsOffset;
		mAnimInfo = cs.animInfo;

		mBG = cs.mBG;
		mBgFilter = cs.mBgFilter;
		mBgPaint.setColorFilter(cs.mBgFilter);
		mThemedFgColor = cs.mThemedFgColor;
		mBG = cs.bg;
		mBgFilter = cs.bgFilter;
		mBgPaint.setColorFilter(cs.bgFilter);
		mThemedFgColor = cs.themeFgColor;

		mFullDrawable =
		(AdaptiveIconDrawable) mAnimInfo.baseDrawableState.newDrawable().mutate();
		@@ -371,24 +390,22 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap

		@Override
		public void setAlpha(int alpha) {
		super.setAlpha(alpha);
		mBgPaint.setAlpha(alpha);
		mFG.setAlpha(alpha);
		}

		@Override
		protected void onBoundsChange(Rect bounds) {
		super.onBoundsChange(bounds);

		public void onBoundsChange(Rect bounds) {
		// b/211896569 AdaptiveIcon does not work properly when bounds
		// are not aligned to top/left corner
		mFullDrawable.setBounds(0, 0, bounds.width(), bounds.height());
		}

		@Override
		public void drawInternal(Canvas canvas, Rect bounds) {
		public void drawContent(@NonNull BitmapInfo info, @NonNull Canvas canvas,
		@NonNull Rect bounds, @NonNull Paint paint) {
		if (mAnimInfo == null) {
		super.drawInternal(canvas, bounds);
		FastBitmapDrawableDelegate.super.drawContent(info, canvas, bounds, paint);
		return;
		}
		canvas.drawBitmap(mBG, null, bounds, mBgPaint);
		@@ -411,9 +428,7 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		}

		@Override
		protected void updateFilter() {
		super.updateFilter();
		boolean isDisabled = isDisabled();
		public void updateFilter(boolean isDisabled, float disabledAlpha) {
		int alpha = isDisabled ? (int) (disabledAlpha * FULLY_OPAQUE) : FULLY_OPAQUE;
		setAlpha(alpha);
		mBgPaint.setColorFilter(isDisabled ? getDisabledColorFilter() : mBgFilter);
		@@ -421,68 +436,37 @@ public class ClockDrawableWrapper extends AdaptiveIconDrawable implements Bitmap
		}

		@Override
		public int getIconColor() {
		return isThemed() ? mThemedFgColor : super.getIconColor();
		public int getIconColor(@NonNull BitmapInfo info) {
		return isThemed() ? mThemedFgColor
		: FastBitmapDrawableDelegate.super.getIconColor(info);
		}

		@Override
		public void run() {
		if (mAnimInfo.applyTime(mTime, mFG)) {
		invalidateSelf();
		mHost.invalidateSelf();
		} else {
		reschedule();
		}
		}

		@Override
		public boolean setVisible(boolean visible, boolean restart) {
		boolean result = super.setVisible(visible, restart);
		if (visible) {
		public void onVisibilityChanged(boolean isVisible) {
		if (isVisible) {
		reschedule();
		} else {
		unscheduleSelf(this);
		mHost.unscheduleSelf(this);
		}
		return result;
		}

		private void reschedule() {
		if (!isVisible()) {
		if (!mHost.isVisible()) {
		return;
		}
		unscheduleSelf(this);
		mHost.unscheduleSelf(this);
		final long upTime = SystemClock.uptimeMillis();
		final long step = TICK_MS; /* tick every 200 ms */
		scheduleSelf(this, upTime - ((upTime % step)) + step);
		}

		@Override
		public FastBitmapConstantState newConstantState() {
		return new ClockConstantState(bitmapInfo, mThemedFgColor, mBoundsOffset,
		mAnimInfo, mBG, mBgPaint.getColorFilter());
		}

		private static class ClockConstantState extends FastBitmapConstantState {

		private final float mBoundsOffset;
		private final AnimationInfo mAnimInfo;
		private final Bitmap mBG;
		private final ColorFilter mBgFilter;
		private final int mThemedFgColor;

		ClockConstantState(BitmapInfo info, int themedFgColor,
		float boundsOffset, AnimationInfo animInfo, Bitmap bg, ColorFilter bgFilter) {
		super(info);
		mBoundsOffset = boundsOffset;
		mAnimInfo = animInfo;
		mBG = bg;
		mBgFilter = bgFilter;
		mThemedFgColor = themedFgColor;
		}

		@Override
		public FastBitmapDrawable createDrawable() {
		return new ClockIconDrawable(this);
		}
		mHost.scheduleSelf(this, upTime - ((upTime % step)) + step);
		}
		}
		}

iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawable.kt

+47 −42

Original line number	Diff line number	Diff line
		@@ -36,11 +36,17 @@ import android.view.animation.DecelerateInterpolator
		import android.view.animation.Interpolator
		import android.view.animation.PathInterpolator
		import androidx.annotation.VisibleForTesting
		import androidx.core.graphics.ColorUtils
		import com.android.launcher3.icons.BitmapInfo.DrawableCreationFlags
		import com.android.launcher3.icons.FastBitmapDrawableDelegate.DelegateFactory
		import com.android.launcher3.icons.FastBitmapDrawableDelegate.SimpleDelegateFactory
		import kotlin.math.min

		open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		class FastBitmapDrawable
		@JvmOverloads
		constructor(
		info: BitmapInfo?,
		private val delegateFactory: DelegateFactory = SimpleDelegateFactory,
		) : Drawable(), Callback {

		@JvmOverloads constructor(b: Bitmap, iconColor: Int = 0) : this(BitmapInfo.of(b, iconColor))

		@@ -49,6 +55,8 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {

		@JvmField protected val paint: Paint = Paint(FILTER_BITMAP_FLAG or ANTI_ALIAS_FLAG)

		val delegate = delegateFactory.newDelegate(bitmapInfo, paint, this)

		@JvmField @VisibleForTesting var isPressed: Boolean = false
		@JvmField @VisibleForTesting var isHovered: Boolean = false

		@@ -93,6 +101,7 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		override fun onBoundsChange(bounds: Rect) {
		super.onBoundsChange(bounds)
		badge?.setBadgeBounds(bounds)
		delegate.onBoundsChange(bounds)
		}

		override fun draw(canvas: Canvas) {
		@@ -101,27 +110,27 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		val bounds = bounds
		canvas.scale(scale, scale, bounds.exactCenterX(), bounds.exactCenterY())
		drawInternal(canvas, bounds)
		badge?.draw(canvas)
		canvas.restoreToCount(count)
		} else {
		drawInternal(canvas, bounds)
		badge?.draw(canvas)
		}
		}

		protected open fun drawInternal(canvas: Canvas, bounds: Rect) {
		canvas.drawBitmap(bitmapInfo.icon, null, bounds, paint)
		private fun drawInternal(canvas: Canvas, bounds: Rect) {
		delegate.drawContent(bitmapInfo, canvas, bounds, paint)
		badge?.draw(canvas)
		}

		/** Returns the primary icon color, slightly tinted white */
		open fun getIconColor(): Int =
		ColorUtils.compositeColors(
		GraphicsUtils.setColorAlphaBound(Color.WHITE, WHITE_SCRIM_ALPHA),
		bitmapInfo.color,
		)
		fun getIconColor(): Int = delegate.getIconColor(bitmapInfo)

		/** Returns if this represents a themed icon */
		open fun isThemed(): Boolean = false
		fun isThemed(): Boolean = delegate.isThemed()

		override fun setVisible(visible: Boolean, restart: Boolean): Boolean =
		super.setVisible(visible, restart).also { delegate.onVisibilityChanged(visible) }

		override fun onLevelChange(level: Int) = delegate.onLevelChange(level)

		/**
		* Returns true if the drawable was created with theme, even if it doesn't support theming
		@@ -145,6 +154,7 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		paint.alpha = alpha
		invalidateSelf()
		badge?.alpha = alpha
		delegate.setAlpha(alpha)
		}
		}

		@@ -227,23 +237,22 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		}

		/** Updates the paint to reflect the current brightness and saturation. */
		protected open fun updateFilter() {
		private fun updateFilter() {
		paint.setColorFilter(if (isDisabled) getDisabledColorFilter(disabledAlpha) else paintFilter)
		badge?.colorFilter = colorFilter
		delegate.updateFilter(isDisabled, disabledAlpha)
		invalidateSelf()
		}

		protected open fun newConstantState(): FastBitmapConstantState {
		return FastBitmapConstantState(bitmapInfo)
		}

		override fun getConstantState(): ConstantState {
		val cs = newConstantState()
		cs.mIsDisabled = isDisabled
		cs.mBadgeConstantState = badge?.constantState
		cs.mCreationFlags = creationFlags
		return cs
		}
		override fun getConstantState() =
		FastBitmapConstantState(
		bitmapInfo,
		isDisabled,
		badge?.constantState,
		creationFlags,
		delegateFactory,
		level,
		)

		// Returns if the FastBitmapDrawable contains a badge.
		fun hasBadge(): Boolean = (creationFlags and BitmapInfo.FLAG_NO_BADGE) == 0
		@@ -264,27 +273,23 @@ open class FastBitmapDrawable(info: BitmapInfo?) : Drawable(), Callback {
		unscheduleSelf(what)
		}

		open class FastBitmapConstantState(val bitmapInfo: BitmapInfo) : ConstantState() {
		// These are initialized later so that subclasses don't need to
		// pass everything in constructor
		var mIsDisabled: Boolean = false
		var mBadgeConstantState: ConstantState? = null

		@DrawableCreationFlags var mCreationFlags: Int = 0

		constructor(bitmap: Bitmap, color: Int) : this(BitmapInfo.of(bitmap, color))

		protected open fun createDrawable(): FastBitmapDrawable {
		return FastBitmapDrawable(bitmapInfo)
		}
		data class FastBitmapConstantState(
		val bitmapInfo: BitmapInfo,
		val isDisabled: Boolean,
		val badgeConstantState: ConstantState?,
		val creationFlags: Int,
		val delegateFactory: DelegateFactory,
		val level: Int,
		) : ConstantState() {

		override fun newDrawable(): FastBitmapDrawable {
		val drawable = createDrawable()
		drawable.isDisabled = mIsDisabled
		if (mBadgeConstantState != null) {
		drawable.badge = mBadgeConstantState!!.newDrawable()
		val drawable = FastBitmapDrawable(bitmapInfo, delegateFactory)
		drawable.isDisabled = isDisabled
		if (badgeConstantState != null) {
		drawable.badge = badgeConstantState.newDrawable()
		}
		drawable.creationFlags = mCreationFlags
		drawable.creationFlags = creationFlags
		drawable.level = level
		return drawable
		}

iconloaderlib/src/com/android/launcher3/icons/FastBitmapDrawableDelegate.kt

0 → 100644

+75 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 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.icons

		import android.graphics.Canvas
		import android.graphics.Color
		import android.graphics.Paint
		import android.graphics.Rect
		import androidx.core.graphics.ColorUtils

		/** A delegate for changing the rendering of [FastBitmapDrawable], to support multi-inheritance */
		interface FastBitmapDrawableDelegate {

		/** [android.graphics.drawable.Drawable.onBoundsChange] */
		fun onBoundsChange(bounds: Rect) {}

		/** [android.graphics.drawable.Drawable.draw] */
		fun drawContent(info: BitmapInfo, canvas: Canvas, bounds: Rect, paint: Paint) {
		canvas.drawBitmap(info.icon, null, bounds, paint)
		}

		/** [FastBitmapDrawable.getIconColor] */
		fun getIconColor(info: BitmapInfo): Int =
		ColorUtils.compositeColors(
		GraphicsUtils.setColorAlphaBound(Color.WHITE, FastBitmapDrawable.WHITE_SCRIM_ALPHA),
		info.color,
		)

		/** [FastBitmapDrawable.isThemed] */
		fun isThemed() = false

		/** [android.graphics.drawable.Drawable.setAlpha] */
		fun setAlpha(alpha: Int) {}

		/** [android.graphics.drawable.Drawable.setColorFilter] */
		fun updateFilter(isDisabled: Boolean, disabledAlpha: Float) {}

		/** [android.graphics.drawable.Drawable.setVisible] */
		fun onVisibilityChanged(isVisible: Boolean) {}

		/** [android.graphics.drawable.Drawable.onLevelChange] */
		fun onLevelChange(level: Int): Boolean = false

		/**
		* Interface for creating new delegates. This should not store any state information and can
		* safely be stored in a [android.graphics.drawable.Drawable.ConstantState]
		*/
		fun interface DelegateFactory {

		fun newDelegate(
		bitmapInfo: BitmapInfo,
		paint: Paint,
		host: FastBitmapDrawable,
		): FastBitmapDrawableDelegate
		}

		object SimpleDelegateFactory : DelegateFactory {
		override fun newDelegate(bitmapInfo: BitmapInfo, paint: Paint, host: FastBitmapDrawable) =
		object : FastBitmapDrawableDelegate {}
		}
		}