[Remoting Android] Use floating point coords for rendering the cursor

remoting/android/java/src/org/chromium/chromoting/RenderData.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chromoting;
 
 import android.graphics.Matrix;
 import android.graphics.Point;
+import android.graphics.PointF;
 
 /**
  * This class stores data that needs to be accessed on both the display thread and the
  * event-processing thread.
  */
 public class RenderData {
     /** Stores pan and zoom configuration and converts image coordinates to screen coordinates. */
     public Matrix transform = new Matrix();
 
     public int screenWidth = 0;
     public int screenHeight = 0;
     public int imageWidth = 0;
     public int imageHeight = 0;
 
     /** Determines whether the local cursor should be drawn. */
     public boolean drawCursor = false;
 
     /**
      * Specifies the position, in image coordinates, at which the cursor image will be drawn.
      * This will normally be at the location of the most recently injected motion event.
      */
-    private Point mCursorPosition = new Point();
+    private PointF mCursorPosition = new PointF();
 
     /**
      * Returns the position of the rendered cursor.
      *
      * @return A point representing the current position.
      */
-    public Point getCursorPosition() {
-        return new Point(mCursorPosition);
+    public PointF getCursorPosition() {
+        return new PointF(mCursorPosition.x, mCursorPosition.y);
     }
 
     /**
+     * Returns the position of the rendered cursor. The values are casted to integer.
+     *
+     * @return A point representing the current position.
+     */
+    public Point getIntegerCursorPosition() {
+        return new Point((int) mCursorPosition.x, (int) mCursorPosition.y);
+    }
+
+    /**
      * Sets the position of the cursor which is used for rendering.
      *
      * @param newX The new value of the x coordinate.
      * @param newY The new value of the y coordinate
      * @return True if the cursor position has changed.
      */
-    public boolean setCursorPosition(int newX, int newY) {
+    public boolean setCursorPosition(float newX, float newY) {
         boolean cursorMoved = false;
         if (newX != mCursorPosition.x) {
             mCursorPosition.x = newX;
             cursorMoved = true;
         }
         if (newY != mCursorPosition.y) {
             mCursorPosition.y = newY;
             cursorMoved = true;
         }
 
         return cursorMoved;
     }
 }