1 files changed, 0 insertions, 156 deletions
diff --git a/libraries/zxing/src/com/google/zxing/common/GridSampler.java b/libraries/zxing/src/com/google/zxing/common/GridSampler.java
deleted file mode 100644
index 7f26c264e..000000000
--- a/libraries/zxing/src/com/google/zxing/common/GridSampler.java
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright 2007 ZXing authors
- *
- * 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.google.zxing.common;
-
-import com.google.zxing.NotFoundException;
-
-/**
- * Implementations of this class can, given locations of finder patterns for a QR code in an
- * image, sample the right points in the image to reconstruct the QR code, accounting for
- * perspective distortion. It is abstracted since it is relatively expensive and should be allowed
- * to take advantage of platform-specific optimized implementations, like Sun's Java Advanced
- * Imaging library, but which may not be available in other environments such as J2ME, and vice
- * versa.
- *
- * The implementation used can be controlled by calling {@link #setGridSampler(GridSampler)}
- * with an instance of a class which implements this interface.
- *
- * @author Sean Owen
- */
-public abstract class GridSampler {
-
-  private static GridSampler gridSampler = new DefaultGridSampler();
-
-  /**
-   * Sets the implementation of GridSampler used by the library. One global
-   * instance is stored, which may sound problematic. But, the implementation provided
-   * ought to be appropriate for the entire platform, and all uses of this library
-   * in the whole lifetime of the JVM. For instance, an Android activity can swap in
-   * an implementation that takes advantage of native platform libraries.
-   * 
-   * @param newGridSampler The platform-specific object to install.
-   */
-  public static void setGridSampler(GridSampler newGridSampler) {
-    if (newGridSampler == null) {
-      throw new IllegalArgumentException();
-    }
-    gridSampler = newGridSampler;
-  }
-
-  /**
-   * @return the current implementation of GridSampler
-   */
-  public static GridSampler getInstance() {
-    return gridSampler;
-  }
-
-  /**
-   * Samples an image for a rectangular matrix of bits of the given dimension.
-   * @param image image to sample
-   * @param dimensionX width of {@link BitMatrix} to sample from image
-   * @param dimensionY height of {@link BitMatrix} to sample from image
-   * @return {@link BitMatrix} representing a grid of points sampled from the image within a region
-   *   defined by the "from" parameters
-   * @throws NotFoundException if image can't be sampled, for example, if the transformation defined
-   *   by the given points is invalid or results in sampling outside the image boundaries
-   */
-  public abstract BitMatrix sampleGrid(BitMatrix image,
-                                       int dimensionX,
-                                       int dimensionY,
-                                       float p1ToX, float p1ToY,
-                                       float p2ToX, float p2ToY,
-                                       float p3ToX, float p3ToY,
-                                       float p4ToX, float p4ToY,
-                                       float p1FromX, float p1FromY,
-                                       float p2FromX, float p2FromY,
-                                       float p3FromX, float p3FromY,
-                                       float p4FromX, float p4FromY) throws NotFoundException;
-  
-  public abstract BitMatrix sampleGrid(BitMatrix image,
-                                       int dimensionX,
-                                       int dimensionY,
-                                       PerspectiveTransform transform) throws NotFoundException;
-
-  /**
-   * <p>Checks a set of points that have been transformed to sample points on an image against
-   * the image's dimensions to see if the point are even within the image.</p>
-   *
-   * <p>This method will actually "nudge" the endpoints back onto the image if they are found to be
-   * barely (less than 1 pixel) off the image. This accounts for imperfect detection of finder
-   * patterns in an image where the QR Code runs all the way to the image border.</p>
-   *
-   * <p>For efficiency, the method will check points from either end of the line until one is found
-   * to be within the image. Because the set of points are assumed to be linear, this is valid.</p>
-   *
-   * @param image image into which the points should map
-   * @param points actual points in x1,y1,...,xn,yn form
-   * @throws NotFoundException if an endpoint is lies outside the image boundaries
-   */
-  protected static void checkAndNudgePoints(BitMatrix image, float[] points) throws NotFoundException {
-    int width = image.getWidth();
-    int height = image.getHeight();
-    // Check and nudge points from start until we see some that are OK:
-    boolean nudged = true;
-    for (int offset = 0; offset < points.length && nudged; offset += 2) {
-      int x = (int) points[offset];
-      int y = (int) points[offset + 1];
-      if (x < -1 || x > width || y < -1 || y > height) {
-        throw NotFoundException.getNotFoundInstance();
-      }
-      nudged = false;
-      if (x == -1) {
-        points[offset] = 0.0f;
-        nudged = true;
-      } else if (x == width) {
-        points[offset] = width - 1;
-        nudged = true;
-      }
-      if (y == -1) {
-        points[offset + 1] = 0.0f;
-        nudged = true;
-      } else if (y == height) {
-        points[offset + 1] = height - 1;
-        nudged = true;
-      }
-    }
-    // Check and nudge points from end:
-    nudged = true;
-    for (int offset = points.length - 2; offset >= 0 && nudged; offset -= 2) {
-      int x = (int) points[offset];
-      int y = (int) points[offset + 1];
-      if (x < -1 || x > width || y < -1 || y > height) {
-        throw NotFoundException.getNotFoundInstance();
-      }
-      nudged = false;
-      if (x == -1) {
-        points[offset] = 0.0f;
-        nudged = true;
-      } else if (x == width) {
-        points[offset] = width - 1;
-        nudged = true;
-      }
-      if (y == -1) {
-        points[offset + 1] = 0.0f;
-        nudged = true;
-      } else if (y == height) {
-        points[offset + 1] = height - 1;
-        nudged = true;
-      }
-    }
-  }
-
-}