1 files changed, 97 insertions, 0 deletions
diff --git a/src/com/android/launcher3/widget/WidgetImageView.java b/src/com/android/launcher3/widget/WidgetImageView.java
new file mode 100644
index 000000000..b0fbe1ed9
--- /dev/null
+++ b/src/com/android/launcher3/widget/WidgetImageView.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2011 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.widget;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.util.AttributeSet;
+import android.view.View;
+
+/**
+ * View that draws a bitmap horizontally centered. If the image width is greater than the view
+ * width, the image is scaled down appropriately.
+ */
+public class WidgetImageView extends View {
+
+    private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
+    private final RectF mDstRectF = new RectF();
+    private Bitmap mBitmap;
+
+    public WidgetImageView(Context context) {
+        super(context);
+    }
+
+    public WidgetImageView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public WidgetImageView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public void setBitmap(Bitmap bitmap) {
+        mBitmap = bitmap;
+        invalidate();
+    }
+
+    public Bitmap getBitmap() {
+        return mBitmap;
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (mBitmap != null) {
+            updateDstRectF();
+            canvas.drawBitmap(mBitmap, null, mDstRectF, mPaint);
+        }
+    }
+
+    /**
+     * Prevents the inefficient alpha view rendering.
+     */
+    @Override
+    public boolean hasOverlappingRendering() {
+        return false;
+    }
+
+    private void updateDstRectF() {
+        if (mBitmap.getWidth() > getWidth()) {
+            float scale = ((float) getWidth()) / mBitmap.getWidth();
+            mDstRectF.set(0, 0, getWidth(), scale * mBitmap.getHeight());
+        } else {
+            mDstRectF.set(
+                    (getWidth() - mBitmap.getWidth()) * 0.5f,
+                    0,
+                    (getWidth() + mBitmap.getWidth()) * 0.5f,
+                    mBitmap.getHeight());
+        }
+    }
+
+    /**
+     * @return the bounds where the image was drawn.
+     */
+    public Rect getBitmapBounds() {
+        updateDstRectF();
+        Rect rect = new Rect();
+        mDstRectF.round(rect);
+        return rect;
+    }
+}