Many changes to the C++ port.

[zxing.git] / cpp / core / src / common / GridSampler.cpp

diff --git a/cpp/core/src/common/GridSampler.cpp b/cpp/core/src/common/GridSampler.cpp
deleted file mode 100644 (file)
index 299bfe1..0000000
--- a/cpp/core/src/common/GridSampler.cpp
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- *  GridSampler.cpp
- *  zxing
- *
- *  Created by Christian Brunschen on 18/05/2008.
- *  Copyright 2008 ZXing authors All rights reserved.
- *
- * 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.
- */
-
-#include "GridSampler.h"
-#include "PerspectiveTransform.h"
-#include "ReaderException.h"
-#include <iostream>
-#include <sstream>
-
-namespace common {
-  GridSampler GridSampler::gridSampler;
-  
-  GridSampler::GridSampler() { }
-  
-  Ref<BitMatrix> GridSampler::sampleGrid(Ref<MonochromeBitmapSource> image,
-                                         int dimension,
-                                         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) {
-    Ref<PerspectiveTransform> transform
-    (PerspectiveTransform::quadrilateralToQuadrilateral
-     (p1ToX, p1ToY, p2ToX, p2ToY, p3ToX, p3ToY, p4ToX, p4ToY,
-      p1FromX, p1FromY, p2FromX, p2FromY, p3FromX, p3FromY, p4FromX, p4FromY));
-    
-    Ref<BitMatrix> bits(new BitMatrix(dimension));
-    valarray<float> points((const float)0.0f, dimension << 1);
-    for (int i = 0; i < dimension; i++) {
-      int max = points.size();
-      float iValue = (float) i + 0.5f;
-      for (int j = 0; j < max; j+= 2) {
-        points[j] = (float) (j >> 1) + 0.5f;
-        points[j + 1] = iValue;
-      }
-      transform->transformPoints(points);
-      checkAndNudgePoints(image, points);
-      for (int j = 0; j < max; j += 2) {
-        if (image->isBlack((int) points[j], (int) points[j + 1])) {
-          bits->set(i, j >> 1);
-        }
-      }
-    }
-    
-    return bits;
-  }
-  
-  void GridSampler::checkAndNudgePoints(Ref<MonochromeBitmapSource> image,
-                                        valarray<float> &points) {
-    int width = image->getWidth();
-    int height = image->getHeight();
-    // Check and nudge points from start until we see some that are OK:
-    bool nudged = true;
-    for (size_t offset = 0; offset < points.size() && nudged; offset += 2) {
-      int x = (int) points[offset];
-      int y = (int) points[offset + 1];
-      if (x < -1 || x > width || y < -1 || y > height) {
-        ostringstream s;
-        s << "Transformed point out of bounds at " << x << "," << y;
-        throw ReaderException(s.str().c_str());
-      }
-      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 (size_t offset = points.size() - 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) {
-        ostringstream s;
-        s << "Transformed point out of bounds at " << x << "," << y;
-        throw ReaderException(s.str().c_str());
-      }
-      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;
-      }
-    }
-  }
-  
-  GridSampler &GridSampler::getInstance() {
-    return gridSampler;
-  }
-}