1 files changed, 84 insertions, 0 deletions
diff --git a/tesseract/src/textord/fpchop.h b/tesseract/src/textord/fpchop.h
new file mode 100644
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+++ b/tesseract/src/textord/fpchop.h
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+/**********************************************************************
+ * File:        fpchop.h  (Formerly fp_chop.h)
+ * Description: Code to chop fixed pitch text into character cells.
+ * Author:      Ray Smith
+ *
+ * (C) Copyright 1993, Hewlett-Packard Ltd.
+ ** 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.
+ *
+ **********************************************************************/
+
+#ifndef           FPCHOP_H
+#define           FPCHOP_H
+
+#include          "params.h"
+#include          "blobbox.h"
+
+namespace tesseract {
+
+class C_OUTLINE_FRAG : public ELIST_LINK
+{
+  public:
+    C_OUTLINE_FRAG() {  //empty constructor
+      steps = nullptr;
+      stepcount = 0;
+    }
+    ~C_OUTLINE_FRAG () {
+      delete [] steps;
+    }
+                                 //start coord
+    C_OUTLINE_FRAG(ICOORD start_pt,
+                   ICOORD end_pt,       //end coord
+                   C_OUTLINE *outline,  //source of steps
+                   int16_t start_index,
+                   int16_t end_index);
+                                 //other end
+    C_OUTLINE_FRAG(C_OUTLINE_FRAG *head, int16_t tail_y);
+    C_OUTLINE *close();  //copy to outline
+    C_OUTLINE_FRAG & operator= ( //assign
+      const C_OUTLINE_FRAG & src);
+
+    ICOORD start;                //start coord
+    ICOORD end;                  //end coord
+    DIR128 *steps;                //step array
+    int32_t stepcount;             //no of steps
+    C_OUTLINE_FRAG *other_end;   //head if a tail
+    int16_t ycoord;                //coord of cut pt
+
+  private:
+    // Copy constructor (currently unused, therefore private).
+    C_OUTLINE_FRAG(const C_OUTLINE_FRAG& other);
+};
+
+ELISTIZEH(C_OUTLINE_FRAG)
+
+extern
+INT_VAR_H (textord_fp_chop_error, 2,
+"Max allowed bending of chop cells");
+extern
+double_VAR_H (textord_fp_chop_snap, 0.5,
+"Max distance of chop pt from vertex");
+
+ROW *fixed_pitch_words(                 //find lines
+                       TO_ROW *row,     //row to do
+                       FCOORD rotation  //for drawing
+                      );
+
+void split_to_blob(                                 //split the blob
+                   BLOBNBOX *blob,                  //blob to split
+                   int16_t chop_coord,              //place to chop
+                   float pitch_error,               //allowed deviation
+                   C_OUTLINE_LIST *left_coutlines,  //for cblobs
+                   C_OUTLINE_LIST *right_coutlines);
+
+} // namespace tesseract
+
+#endif