Using clippath for adaptive icon drawable instead of bitmap shader
clipPath is already anti-aliased since Android S, so we do not
need to create extra bitmaps for this
Bug: 211896569
Bug: 238937089
Test: Updated tests / presubmit
Change-Id: I60ce42d91ca96babbde9faa4e5580b00f681de35
diff --git a/core/tests/coretests/src/android/graphics/drawable/AdaptiveIconDrawableTest.java b/core/tests/coretests/src/android/graphics/drawable/AdaptiveIconDrawableTest.java
index 7338c3a..ddc05e0 100644
--- a/core/tests/coretests/src/android/graphics/drawable/AdaptiveIconDrawableTest.java
+++ b/core/tests/coretests/src/android/graphics/drawable/AdaptiveIconDrawableTest.java
@@ -204,6 +204,19 @@
assertEquals(100, Color.alpha(bitmap.getPixel(50, 50)));
}
+ @Test
+ public void testSetBounds() throws Exception {
+ mIconDrawable = new AdaptiveIconDrawable(mBackgroundDrawable, mForegroundDrawable);
+ mIconDrawable.setBounds(0, 0, 100, 100);
+
+ assertEquals(new Rect(-25, -25, 125, 125), mBackgroundDrawable.getBounds());
+ assertEquals(new Rect(-25, -25, 125, 125), mForegroundDrawable.getBounds());
+
+ mIconDrawable.setBounds(10, 10, 110, 110);
+ assertEquals(new Rect(-15, -15, 135, 135), mBackgroundDrawable.getBounds());
+ assertEquals(new Rect(-15, -15, 135, 135), mForegroundDrawable.getBounds());
+ }
+
//
// Utils
//
diff --git a/graphics/java/android/graphics/drawable/AdaptiveIconDrawable.java b/graphics/java/android/graphics/drawable/AdaptiveIconDrawable.java
index 2f56b18..6939a720 100644
--- a/graphics/java/android/graphics/drawable/AdaptiveIconDrawable.java
+++ b/graphics/java/android/graphics/drawable/AdaptiveIconDrawable.java
@@ -26,8 +26,6 @@
import android.content.res.Resources;
import android.content.res.Resources.Theme;
import android.content.res.TypedArray;
-import android.graphics.Bitmap;
-import android.graphics.BitmapShader;
import android.graphics.BlendMode;
import android.graphics.Canvas;
import android.graphics.Color;
@@ -39,8 +37,6 @@
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.Region;
-import android.graphics.Shader;
-import android.graphics.Shader.TileMode;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.PathParser;
@@ -106,7 +102,8 @@
private static final float DEFAULT_VIEW_PORT_SCALE = 1f / (1 + 2 * EXTRA_INSET_PERCENTAGE);
/**
- * Clip path defined in R.string.config_icon_mask.
+ * Unused path.
+ * TODO: Remove once the layoutLib is updated
*/
private static Path sMask;
@@ -114,9 +111,10 @@
* Scaled mask based on the view bounds.
*/
private final Path mMask;
- private final Path mMaskScaleOnly;
+ private final Path mMaskTransformed;
private final Matrix mMaskMatrix;
private final Region mTransparentRegion;
+ private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
/**
* Indices used to access {@link #mLayerState.mChildDrawable} array for foreground and
@@ -131,19 +129,10 @@
*/
LayerState mLayerState;
- private Shader mLayersShader;
- private Bitmap mLayersBitmap;
-
private final Rect mTmpOutRect = new Rect();
private Rect mHotspotBounds;
private boolean mMutated;
- private boolean mSuspendChildInvalidation;
- private boolean mChildRequestedInvalidation;
- private final Canvas mCanvas;
- private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG |
- Paint.FILTER_BITMAP_FLAG);
-
/**
* Constructor used for xml inflation.
*/
@@ -157,19 +146,16 @@
*/
AdaptiveIconDrawable(@Nullable LayerState state, @Nullable Resources res) {
mLayerState = createConstantState(state, res);
- // config_icon_mask from context bound resource may have been chaged using
+ // config_icon_mask from context bound resource may have been changed using
// OverlayManager. Read that one first.
Resources r = ActivityThread.currentActivityThread() == null
? Resources.getSystem()
: ActivityThread.currentActivityThread().getApplication().getResources();
- // TODO: either make sMask update only when config_icon_mask changes OR
- // get rid of it all-together in layoutlib
- sMask = PathParser.createPathFromPathData(r.getString(R.string.config_icon_mask));
- mMask = new Path(sMask);
- mMaskScaleOnly = new Path(mMask);
+ mMask = PathParser.createPathFromPathData(r.getString(R.string.config_icon_mask));
+ mMaskTransformed = new Path();
mMaskMatrix = new Matrix();
- mCanvas = new Canvas();
mTransparentRegion = new Region();
+ mPaint.setColor(Color.BLACK);
}
private ChildDrawable createChildDrawable(Drawable drawable) {
@@ -280,7 +266,7 @@
* @return the mask path object used to clip the drawable
*/
public Path getIconMask() {
- return mMask;
+ return mMaskTransformed;
}
/**
@@ -322,92 +308,47 @@
if (bounds.isEmpty()) {
return;
}
- updateLayerBounds(bounds);
- }
-
- private void updateLayerBounds(Rect bounds) {
- if (bounds.isEmpty()) {
- return;
- }
- try {
- suspendChildInvalidation();
- updateLayerBoundsInternal(bounds);
- updateMaskBoundsInternal(bounds);
- } finally {
- resumeChildInvalidation();
- }
- }
-
- /**
- * Set the child layer bounds bigger than the view port size by {@link #DEFAULT_VIEW_PORT_SCALE}
- */
- private void updateLayerBoundsInternal(Rect bounds) {
- int cX = bounds.width() / 2;
- int cY = bounds.height() / 2;
+ // Set the child layer bounds bigger than the view port size
+ // by {@link #DEFAULT_VIEW_PORT_SCALE}
+ float cX = bounds.exactCenterX();
+ float cY = bounds.exactCenterY();
+ float insetWidth = bounds.width() / (DEFAULT_VIEW_PORT_SCALE * 2);
+ float insetHeight = bounds.height() / (DEFAULT_VIEW_PORT_SCALE * 2);
+ final Rect outRect = mTmpOutRect;
+ outRect.set(
+ (int) (cX - insetWidth),
+ (int) (cY - insetHeight),
+ (int) (cX + insetWidth),
+ (int) (cY + insetHeight));
for (int i = 0, count = mLayerState.N_CHILDREN; i < count; i++) {
final ChildDrawable r = mLayerState.mChildren[i];
- final Drawable d = r.mDrawable;
- if (d == null) {
- continue;
+ if (r.mDrawable != null) {
+ r.mDrawable.setBounds(outRect);
}
-
- int insetWidth = (int) (bounds.width() / (DEFAULT_VIEW_PORT_SCALE * 2));
- int insetHeight = (int) (bounds.height() / (DEFAULT_VIEW_PORT_SCALE * 2));
- final Rect outRect = mTmpOutRect;
- outRect.set(cX - insetWidth, cY - insetHeight, cX + insetWidth, cY + insetHeight);
-
- d.setBounds(outRect);
- }
- }
-
- private void updateMaskBoundsInternal(Rect b) {
- // reset everything that depends on the view bounds
- mMaskMatrix.setScale(b.width() / MASK_SIZE, b.height() / MASK_SIZE);
- sMask.transform(mMaskMatrix, mMaskScaleOnly);
-
- mMaskMatrix.postTranslate(b.left, b.top);
- sMask.transform(mMaskMatrix, mMask);
-
- if (mLayersBitmap == null || mLayersBitmap.getWidth() != b.width()
- || mLayersBitmap.getHeight() != b.height()) {
- mLayersBitmap = Bitmap.createBitmap(b.width(), b.height(), Bitmap.Config.ARGB_8888);
}
- mPaint.setShader(null);
+ // Update the clipping mask
+ mMaskMatrix.setScale(bounds.width() / MASK_SIZE, bounds.height() / MASK_SIZE);
+ mMaskMatrix.postTranslate(bounds.left, bounds.top);
+ mMask.transform(mMaskMatrix, mMaskTransformed);
+
+ // Clear the transparent region, it is calculated lazily
mTransparentRegion.setEmpty();
- mLayersShader = null;
}
@Override
public void draw(Canvas canvas) {
- if (mLayersBitmap == null) {
- return;
+ int saveCount = canvas.save();
+ canvas.clipPath(mMaskTransformed);
+ canvas.drawPaint(mPaint);
+ if (mLayerState.mChildren[BACKGROUND_ID].mDrawable != null) {
+ mLayerState.mChildren[BACKGROUND_ID].mDrawable.draw(canvas);
}
- if (mLayersShader == null) {
- mCanvas.setBitmap(mLayersBitmap);
- mCanvas.drawColor(Color.BLACK);
- if (mLayerState.mChildren[BACKGROUND_ID].mDrawable != null) {
- mLayerState.mChildren[BACKGROUND_ID].mDrawable.draw(mCanvas);
- }
- if (mLayerState.mChildren[FOREGROUND_ID].mDrawable != null) {
- mLayerState.mChildren[FOREGROUND_ID].mDrawable.draw(mCanvas);
- }
- mLayersShader = new BitmapShader(mLayersBitmap, TileMode.CLAMP, TileMode.CLAMP);
- mPaint.setShader(mLayersShader);
+ if (mLayerState.mChildren[FOREGROUND_ID].mDrawable != null) {
+ mLayerState.mChildren[FOREGROUND_ID].mDrawable.draw(canvas);
}
- if (mMaskScaleOnly != null) {
- Rect bounds = getBounds();
- canvas.translate(bounds.left, bounds.top);
- canvas.drawPath(mMaskScaleOnly, mPaint);
- canvas.translate(-bounds.left, -bounds.top);
- }
- }
-
- @Override
- public void invalidateSelf() {
- mLayersShader = null;
- super.invalidateSelf();
+ canvas.restoreToCount(saveCount);
}
@Override
@@ -600,37 +541,9 @@
return false;
}
- /**
- * Temporarily suspends child invalidation.
- *
- * @see #resumeChildInvalidation()
- */
- private void suspendChildInvalidation() {
- mSuspendChildInvalidation = true;
- }
-
- /**
- * Resumes child invalidation after suspension, immediately performing an
- * invalidation if one was requested by a child during suspension.
- *
- * @see #suspendChildInvalidation()
- */
- private void resumeChildInvalidation() {
- mSuspendChildInvalidation = false;
-
- if (mChildRequestedInvalidation) {
- mChildRequestedInvalidation = false;
- invalidateSelf();
- }
- }
-
@Override
public void invalidateDrawable(@NonNull Drawable who) {
- if (mSuspendChildInvalidation) {
- mChildRequestedInvalidation = true;
- } else {
- invalidateSelf();
- }
+ invalidateSelf();
}
@Override
@@ -714,6 +627,13 @@
@Override
public void setAlpha(int alpha) {
mPaint.setAlpha(alpha);
+ final ChildDrawable[] array = mLayerState.mChildren;
+ for (int i = 0; i < mLayerState.N_CHILDREN; i++) {
+ final Drawable dr = array[i].mDrawable;
+ if (dr != null) {
+ dr.setAlpha(alpha);
+ }
+ }
}
@Override
@@ -816,10 +736,6 @@
}
}
- if (changed) {
- updateLayerBounds(getBounds());
- }
-
return changed;
}
@@ -835,10 +751,6 @@
}
}
- if (changed) {
- updateLayerBounds(getBounds());
- }
-
return changed;
}
@@ -979,6 +891,7 @@
int mDensity;
// The density to use when inflating/looking up the children drawables. A value of 0 means
+
// use the system's density.
int mSrcDensityOverride = 0;
