--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/ccstruct/ocrrow.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,176 @@
+/**********************************************************************
+ * File:        ocrrow.h  (Formerly row.h)
+ * Description: Code for the ROW class.
+ * Author:      Ray Smith
+ * Created:     Tue Oct 08 15:58:04 BST 1991
+ *
+ * (C) Copyright 1991, 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 OCRROW_H
+#define OCRROW_H
+
+#include "elst.h"       // for ELIST_ITERATOR, ELISTIZEH, ELIST_LINK
+#include "quspline.h"   // for QSPLINE
+#include "rect.h"       // for TBOX
+#include "scrollview.h" // for ScrollView, ScrollView::Color
+#include "werd.h"       // for WERD_LIST
+
+#include <cstdint> // for int16_t, int32_t
+#include <cstdio>  // for FILE
+
+namespace tesseract {
+
+class ICOORD;
+class TO_ROW;
+
+struct PARA;
+
+class ROW : public ELIST_LINK {
+  friend void tweak_row_baseline(ROW *, double, double);
+
+public:
+  ROW() = default;
+  ROW(                     // constructor
+      int32_t spline_size, // no of segments
+      int32_t *xstarts,    // segment boundaries
+      double *coeffs,      // coefficients //ascender size
+      float x_height, float ascenders,
+      float descenders, // descender size
+      int16_t kern,     // char gap
+      int16_t space);   // word gap
+  ROW(                  // constructor
+      TO_ROW *row,      // textord row
+      int16_t kern,     // char gap
+      int16_t space);   // word gap
+
+  WERD_LIST *word_list() { // get words
+    return &words;
+  }
+
+  float base_line(        // compute baseline
+      float xpos) const { // at the position
+    // get spline value
+    return static_cast<float>(baseline.y(xpos));
+  }
+  float x_height() const { // return x height
+    return xheight;
+  }
+  void set_x_height(float new_xheight) { // set x height
+    xheight = new_xheight;
+  }
+  int32_t kern() const { // return kerning
+    return kerning;
+  }
+  float body_size() const { // return body size
+    return bodysize;
+  }
+  void set_body_size(float new_size) { // set body size
+    bodysize = new_size;
+  }
+  int32_t space() const { // return spacing
+    return spacing;
+  }
+  float ascenders() const { // return size
+    return ascrise;
+  }
+  float descenders() const { // return size
+    return descdrop;
+  }
+  TBOX bounding_box() const { // return bounding box
+    return bound_box;
+  }
+  // Returns the bounding box including the desired combination of upper and
+  // lower noise/diacritic elements.
+  TBOX restricted_bounding_box(bool upper_dots, bool lower_dots) const;
+
+  void set_lmargin(int16_t lmargin) {
+    lmargin_ = lmargin;
+  }
+  void set_rmargin(int16_t rmargin) {
+    rmargin_ = rmargin;
+  }
+  int16_t lmargin() const {
+    return lmargin_;
+  }
+  int16_t rmargin() const {
+    return rmargin_;
+  }
+
+  void set_has_drop_cap(bool has) {
+    has_drop_cap_ = has;
+  }
+  bool has_drop_cap() const {
+    return has_drop_cap_;
+  }
+
+  void set_para(PARA *p) {
+    para_ = p;
+  }
+  PARA *para() const {
+    return para_;
+  }
+
+  void recalc_bounding_box(); // recalculate BB
+
+  void move(             // reposition row
+      const ICOORD vec); // by vector
+
+  void print(    // print
+      FILE *fp) const; // file to print on
+
+#ifndef GRAPHICS_DISABLED
+  void plot(                     // draw one
+      ScrollView *window,        // window to draw in
+      ScrollView::Color colour); // uniform colour
+  void plot(                     // draw one
+      ScrollView *window);       // in rainbow colours
+
+  void plot_baseline(             // draw the baseline
+      ScrollView *window,         // window to draw in
+      ScrollView::Color colour) { // colour to draw
+    // draw it
+    baseline.plot(window, colour);
+  }
+#endif // !GRAPHICS_DISABLED
+  ROW &operator=(const ROW &source);
+
+private:
+  // Copy constructor (currently unused, therefore private).
+  ROW(const ROW &source) = delete;
+
+  int32_t kerning;  // inter char gap
+  int32_t spacing;  // inter word gap
+  TBOX bound_box;   // bounding box
+  float xheight;    // height of line
+  float ascrise;    // size of ascenders
+  float descdrop;   //-size of descenders
+  float bodysize;   // CJK character size. (equals to
+                    // xheight+ascrise by default)
+  WERD_LIST words;  // words
+  QSPLINE baseline; // baseline spline
+
+  // These get set after blocks have been determined.
+  bool has_drop_cap_;
+  int16_t lmargin_; // Distance to left polyblock margin.
+  int16_t rmargin_; // Distance to right polyblock margin.
+
+  // This gets set during paragraph analysis.
+  PARA *para_; // Paragraph of which this row is part.
+};
+
+ELISTIZEH(ROW)
+
+} // namespace tesseract
+
+#endif