Include Subsampling Scale Image View as library to allow preloading tiles when a max bitmap size is provided.

libs/SubsamplingScaleImageView/src/com/davemorrissey/labs/subscaleview/ImageViewState.java

@@ -0,0 +1,55 @@
+/*
+Copyright 2014 David Morrissey
+
+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.davemorrissey.labs.subscaleview;
+
+import android.graphics.PointF;
+
+import java.io.Serializable;
+
+/**
+ * Wraps the scale, center and orientation of a displayed image for easy restoration on screen rotate.
+ */
+public class ImageViewState implements Serializable {
+
+    private float scale;
+
+    private float centerX;
+
+    private float centerY;
+
+    private int orientation;
+
+    public ImageViewState(float scale, PointF center, int orientation) {
+        this.scale = scale;
+        this.centerX = center.x;
+        this.centerY = center.y;
+        this.orientation = orientation;
+    }
+
+    public float getScale() {
+        return scale;
+    }
+
+    public PointF getCenter() {
+        return new PointF(centerX, centerY);
+    }
+
+    public int getOrientation() {
+        return orientation;
+    }
+
+}