Adding background protection to icons and apps button.

Change-Id: I650f9135c0ce5bc2a6f7c5f878d470d6a85e9f7e

3 files changed, 81 insertions, 36 deletions

diff --git a/src/com/android/launcher2/BubbleTextView.java b/src/com/android/launcher2/BubbleTextView.java
index 603930792..89a6303b4 100644
--- a/src/com/android/launcher2/BubbleTextView.java
+++ b/src/com/android/launcher2/BubbleTextView.java
@@ -16,15 +16,17 @@
 
 package com.android.launcher2;
 
-import android.widget.TextView;
 import android.content.Context;
-import android.util.AttributeSet;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
 import android.text.Layout;
+import android.util.AttributeSet;
+import android.view.View.MeasureSpec;
 
 import com.android.launcher.R;
 
@@ -34,12 +36,15 @@ import com.android.launcher.R;
  * too aggressive.
  */
 public class BubbleTextView extends CacheableTextView {
-    static final float CORNER_RADIUS = 8.0f;
-    static final float PADDING_H = 5.0f;
-    static final float PADDING_V = 1.0f;
+    static final float CORNER_RADIUS = 4.0f;
+    static final float PADDING_H = 8.0f;
+    static final float PADDING_V = 3.0f;
+
+    private int mAppCellWidth;
 
     private final RectF mRect = new RectF();
     private Paint mPaint;
+    private float mBubbleColorAlpha;
     private int mPrevAlpha = -1;
 
     private boolean mBackgroundSizeChanged;
@@ -64,20 +69,31 @@ public class BubbleTextView extends CacheableTextView {
     }
 
     private void init() {
-        setFocusable(true);
         mBackground = getBackground();
+        setFocusable(true);
         setBackgroundDrawable(null);
 
+        final Resources res = getContext().getResources();
+        int bubbleColor = res.getColor(R.color.bubble_dark_background);
         mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
-        mPaint.setColor(getContext().getResources().getColor(R.color.bubble_dark_background));
+        mPaint.setColor(bubbleColor);
+        mBubbleColorAlpha = Color.alpha(bubbleColor) / 255.0f;
+        mAppCellWidth = (int) res.getDimension(R.dimen.app_icon_size);
 
-        final float scale = getContext().getResources().getDisplayMetrics().density;
+        final float scale = res.getDisplayMetrics().density;
         mCornerRadius = CORNER_RADIUS * scale;
         mPaddingH = PADDING_H * scale;
         //noinspection PointlessArithmeticExpression
         mPaddingV = PADDING_V * scale;
     }
 
+    protected int getVerticalPadding() {
+        return (int) PADDING_V;
+    }
+    protected int getHorizontalPadding() {
+        return (int) PADDING_H;
+    }
+
     public void applyFromShortcutInfo(ShortcutInfo info, IconCache iconCache) {
         Bitmap b = info.getIcon(iconCache);
 
@@ -133,39 +149,53 @@ public class BubbleTextView extends CacheableTextView {
             }
         }
 
+        // Draw the hotdog bubble
         final Layout layout = getLayout();
-        final RectF rect = mRect;
-        final int left = getCompoundPaddingLeft();
-        final int top = getExtendedPaddingTop();
-
-        rect.set(left + layout.getLineLeft(0) - mPaddingH,
-                top + layout.getLineTop(0) -  mPaddingV,
-                Math.min(left + layout.getLineRight(0) + mPaddingH, mScrollX + mRight - mLeft),
-                top + layout.getLineBottom(0) + mPaddingV);
-        // TEMPORARILY DISABLE DRAWING ROUND RECT -- re-enable this when we tweak CacheableTextView
-        // to support padding so we can capture the "rounded" edges
-        //canvas.drawRoundRect(rect, mCornerRadius, mCornerRadius, mPaint);
+        final int offset = getExtendedPaddingTop();
+        final int paddingLeft = getPaddingLeft();
+        final int paddingRight = getPaddingRight();
+        final float left = layout.getLineLeft(0) + paddingLeft;
+        final float right = Math.min(layout.getLineRight(0) + paddingRight,
+                left + getWidth() - paddingLeft - paddingRight);
+        mRect.set(left - mPaddingH, offset + (int) layout.getLineTop(0) - mPaddingV,
+                right + mPaddingH, offset + (int) layout.getLineBottom(0) + mPaddingV);
+
+        canvas.drawRoundRect(mRect, mCornerRadius, mCornerRadius, mPaint);
 
         super.draw(canvas);
     }
 
     @Override
+    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+        if (w > 0 && h > 0) {
+            // Temporary Workaround: We need to set padding to compress the text so that we can draw
+            // a hotdog around it.  Currently, the background images prevent us from applying the
+            // padding in XML, so we are doing this programmatically
+            int d = w - mAppCellWidth;
+            int pL = d - (d / 2);
+            int pR = d - pL;
+            setPadding(pL, getPaddingTop(), pR, getPaddingBottom());
+        }
+        super.onSizeChanged(w, h, oldw, oldh);
+    }
+
+    @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
-        mBackground.setCallback(this);
+        if (mBackground != null) mBackground.setCallback(this);
     }
 
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
-        mBackground.setCallback(null);
+        if (mBackground != null) mBackground.setCallback(null);
     }
 
     @Override
     protected boolean onSetAlpha(int alpha) {
         if (mPrevAlpha != alpha) {
             mPrevAlpha = alpha;
-            mPaint.setAlpha(alpha);
+            mPaint.setAlpha((int) (alpha * mBubbleColorAlpha));
             super.onSetAlpha(alpha);
         }
         return true;
diff --git a/src/com/android/launcher2/CacheableTextView.java b/src/com/android/launcher2/CacheableTextView.java
index 26eafa933..084810eae 100644
--- a/src/com/android/launcher2/CacheableTextView.java
+++ b/src/com/android/launcher2/CacheableTextView.java
@@ -34,6 +34,7 @@ import android.widget.TextView;
 public class CacheableTextView extends TextView {
     private Bitmap mCache;
     private final Paint mCachePaint = new Paint();
+    private final Canvas mCacheCanvas = new Canvas();
 
     private int mPrevAlpha = -1;
     private boolean mIsBuildingCache;
@@ -57,6 +58,13 @@ public class CacheableTextView extends TextView {
         super(context, attrs, defStyle);
     }
 
+    protected int getVerticalPadding() {
+        return 0;
+    }
+    protected int getHorizontalPadding() {
+        return 0;
+    }
+
     public void buildAndEnableCache() {
         if (getLayout() == null) {
             mWaitingToGenerateCache = true;
@@ -64,32 +72,34 @@ public class CacheableTextView extends TextView {
         }
 
         final Layout layout = getLayout();
-
         final int left = getCompoundPaddingLeft();
         final int top = getExtendedPaddingTop();
-        mTextCacheLeft = layout.getLineLeft(0);
-        mTextCacheTop = top + layout.getLineTop(0) - mPaddingV;
+        final float prevAlpha = getAlpha();
+
+        int vPadding = getVerticalPadding();
+        int hPadding = getHorizontalPadding();
+
+        mTextCacheLeft = layout.getLineLeft(0) - hPadding;
+        mTextCacheTop = top + layout.getLineTop(0) - mPaddingV - vPadding;
 
         mRectLeft = mScrollX + getLeft();
         mRectTop = 0;
         mTextCacheScrollX = mScrollX;
 
         final float textCacheRight =
-            Math.min(left + layout.getLineRight(0) + mPaddingH, mScrollX + mRight - mLeft);
-        final float textCacheBottom = top + layout.getLineBottom(0) + mPaddingV;
+            Math.min(left + layout.getLineRight(0) + mPaddingH, mScrollX + mRight - mLeft) + hPadding;
+        final float textCacheBottom = top + layout.getLineBottom(0) + mPaddingV + vPadding;
 
         mCache = Bitmap.createBitmap((int) (textCacheRight - mTextCacheLeft),
                 (int) (textCacheBottom - mTextCacheTop), Config.ARGB_8888);
-        Canvas c = new Canvas(mCache);
-        c.translate(-mTextCacheLeft, -mTextCacheTop);
+        mCacheCanvas.setBitmap(mCache);
+        mCacheCanvas.translate(-mTextCacheLeft, -mTextCacheTop);
 
         mIsBuildingCache = true;
-        float alpha = getAlpha();
         setAlpha(1.0f);
-        draw(c);
-        setAlpha(alpha);
+        draw(mCacheCanvas);
+        setAlpha(prevAlpha);
         mIsBuildingCache = false;
-        mCachePaint.setFilterBitmap(true);
 
         // A hack-- we set the text to be one space (we don't make it empty just to avoid any
         // potential issues with text measurement, like line height, etc.) so that the text view
@@ -119,4 +129,4 @@ public class CacheableTextView extends TextView {
         }
         return true;
     }
-}
\ No newline at end of file
+}
diff --git a/src/com/android/launcher2/Workspace.java b/src/com/android/launcher2/Workspace.java
index f866b22df..b12d357f4 100644
--- a/src/com/android/launcher2/Workspace.java
+++ b/src/com/android/launcher2/Workspace.java
@@ -1281,9 +1281,14 @@ public class Workspace extends SmoothPagedView
         v.getDrawingRect(clipRect);
 
         // For a TextView, adjust the clip rect so that we don't include the text label
-        if (v instanceof TextView) {
+        if (v instanceof BubbleTextView) {
+            final BubbleTextView tv = (BubbleTextView) v;
+            clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
+                    tv.getLayout().getLineTop(0);
+        } else if (v instanceof TextView) {
             final TextView tv = (TextView) v;
-            clipRect.bottom = clipRect.top + tv.getCompoundPaddingTop() - 1;
+            clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
+                    tv.getLayout().getLineTop(0);
         }
 
         // Draw the View into the bitmap.