commit d0ae492e9faf2f5c6a686479698585d615423a34
author Sunny Goyal <sunnygoyal@google.com> Thu Oct 11 10:37:53 2018 -0700
committer Sunny Goyal <sunnygoyal@google.com> Wed Oct 17 12:14:41 2018 -0700
tree ba6a51c3d57096177b0e1e5ebc9fe746a6f345ca
parent 7b4575107d6162fbecf8f1a8824af0a17e37279c

Changing the FolderIcon shape based on AdpativeIcon

> Creating an abstract interface to represent a folderIcon shape
> Defined few common folder shapes
> Picking the folder shape closest to the AdaptiveIcon shape

Bug: 111433118
Change-Id: Ib35eddbdd6692767aa9dbe6aae1a379a68cc456a

src/com/android/launcher3/folder/PreviewBackground.java

diff --git a/src/com/android/launcher3/folder/PreviewBackground.java b/src/com/android/launcher3/folder/PreviewBackground.java
index ceb1a8c..8443953 100644
--- a/src/com/android/launcher3/folder/PreviewBackground.java
+++ b/src/com/android/launcher3/folder/PreviewBackground.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.folder;
 
+import static com.android.launcher3.folder.FolderShape.getShape;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
@@ -49,16 +51,6 @@
 
     private static final int CONSUMPTION_ANIMATION_DURATION = 100;
 
-    private final PorterDuffXfermode mClipPorterDuffXfermode
-            = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
-    // Create a RadialGradient such that it draws a black circle and then extends with
-    // transparent. To achieve this, we keep the gradient to black for the range [0, 1) and
-    // just at the edge quickly change it to transparent.
-    private final RadialGradient mClipShader = new RadialGradient(0, 0, 1,
-            new int[] {Color.BLACK, Color.BLACK, Color.TRANSPARENT },
-            new float[] {0, 0.999f, 1},
-            Shader.TileMode.CLAMP);
-
     private final PorterDuffXfermode mShadowPorterDuffXfermode
             = new PorterDuffXfermode(PorterDuff.Mode.DST_OUT);
     private RadialGradient mShadowShader = null;
@@ -208,8 +200,7 @@
         mPaint.setStyle(Paint.Style.FILL);
         mPaint.setColor(getBgColor());
 
-        drawCircle(canvas, 0 /* deltaRadius */);
-
+        getShape().drawShape(canvas, getOffsetX(), getOffsetY(), getScaledRadius(), mPaint);
         drawShadow(canvas);
     }
 
@@ -244,7 +235,7 @@
         mPaint.setShader(null);
         if (canvas.isHardwareAccelerated()) {
             mPaint.setXfermode(mShadowPorterDuffXfermode);
-            canvas.drawCircle(radius + offsetX, radius + offsetY, radius, mPaint);
+            getShape().drawShape(canvas, offsetX, offsetY, radius, mPaint);
             mPaint.setXfermode(null);
         }
 
@@ -287,7 +278,10 @@
         mPaint.setColor(ColorUtils.setAlphaComponent(mBgColor, mStrokeAlpha));
         mPaint.setStyle(Paint.Style.STROKE);
         mPaint.setStrokeWidth(mStrokeWidth);
-        drawCircle(canvas, 1 /* deltaRadius */);
+
+        float inset = 1f;
+        getShape().drawShape(canvas,
+                getOffsetX() + inset, getOffsetY() + inset, getScaledRadius() - inset, mPaint);
     }
 
     public void drawLeaveBehind(Canvas canvas) {
@@ -296,40 +290,17 @@
 
         mPaint.setStyle(Paint.Style.FILL);
         mPaint.setColor(Color.argb(160, 245, 245, 245));
-        drawCircle(canvas, 0 /* deltaRadius */);
+        getShape().drawShape(canvas, getOffsetX(), getOffsetY(), getScaledRadius(), mPaint);
 
         mScale = originalScale;
     }
 
-    private void drawCircle(Canvas canvas,float deltaRadius) {
-        float radius = getScaledRadius();
-        canvas.drawCircle(radius + getOffsetX(), radius + getOffsetY(),
-                radius - deltaRadius, mPaint);
-    }
-
     public Path getClipPath() {
         mPath.reset();
-        float r = getScaledRadius();
-        mPath.addCircle(r + getOffsetX(), r + getOffsetY(), r, Path.Direction.CW);
+        getShape().addShape(mPath, getOffsetX(), getOffsetY(), getScaledRadius());
         return mPath;
     }
 
-    // It is the callers responsibility to save and restore the canvas layers.
-    void clipCanvasHardware(Canvas canvas) {
-        mPaint.setColor(Color.BLACK);
-        mPaint.setStyle(Paint.Style.FILL);
-        mPaint.setXfermode(mClipPorterDuffXfermode);
-
-        float radius = getScaledRadius();
-        mShaderMatrix.setScale(radius, radius);
-        mShaderMatrix.postTranslate(radius + getOffsetX(), radius + getOffsetY());
-        mClipShader.setLocalMatrix(mShaderMatrix);
-        mPaint.setShader(mClipShader);
-        canvas.drawPaint(mPaint);
-        mPaint.setXfermode(null);
-        mPaint.setShader(null);
-    }
-
     private void delegateDrawing(CellLayout delegate, int cellX, int cellY) {
         if (mDrawingDelegate != delegate) {
             delegate.addFolderBackground(this);