1 files changed, 109 insertions, 0 deletions
diff --git a/src/com/android/launcher3/FastBitmapDrawable.java b/src/com/android/launcher3/FastBitmapDrawable.java
new file mode 100644
index 000000000..14760c7b6
--- /dev/null
+++ b/src/com/android/launcher3/FastBitmapDrawable.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2008 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;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+
+class FastBitmapDrawable extends Drawable {
+    private Bitmap mBitmap;
+    private int mAlpha;
+    private int mWidth;
+    private int mHeight;
+    private final Paint mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
+
+    FastBitmapDrawable(Bitmap b) {
+	mAlpha = 255;
+        mBitmap = b;
+        if (b != null) {
+            mWidth = mBitmap.getWidth();
+            mHeight = mBitmap.getHeight();
+        } else {
+            mWidth = mHeight = 0;
+        }
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        final Rect r = getBounds();
+        // Draw the bitmap into the bounding rect
+        canvas.drawBitmap(mBitmap, null, r, mPaint);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter cf) {
+        mPaint.setColorFilter(cf);
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.TRANSLUCENT;
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        mAlpha = alpha;
+        mPaint.setAlpha(alpha);
+    }
+
+    public void setFilterBitmap(boolean filterBitmap) {
+        mPaint.setFilterBitmap(filterBitmap);
+    }
+
+    public int getAlpha() {
+        return mAlpha;
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        return mWidth;
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        return mHeight;
+    }
+
+    @Override
+    public int getMinimumWidth() {
+        return mWidth;
+    }
+
+    @Override
+    public int getMinimumHeight() {
+        return mHeight;
+    }
+
+    public void setBitmap(Bitmap b) {
+        mBitmap = b;
+        if (b != null) {
+            mWidth = mBitmap.getWidth();
+            mHeight = mBitmap.getHeight();
+        } else {
+            mWidth = mHeight = 0;
+        }
+    }
+
+    public Bitmap getBitmap() {
+        return mBitmap;
+    }
+}