--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/ccmain/paramsd.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,130 @@
+///////////////////////////////////////////////////////////////////////
+// File:        paramsd.h
+// Description: Tesseract parameter editor
+// Author:      Joern Wanke
+//
+// (C) Copyright 2007, Google Inc.
+// 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.
+//
+///////////////////////////////////////////////////////////////////////
+//
+// Tesseract parameter editor is used to edit all the parameters used
+// within tesseract from the ui.
+#ifndef TESSERACT_CCMAIN_PARAMSD_H_
+#define TESSERACT_CCMAIN_PARAMSD_H_
+
+#ifndef GRAPHICS_DISABLED
+
+#  include "elst.h"       // for ELIST_ITERATOR, ELISTIZEH, ELIST_LINK
+#  include "scrollview.h" // for ScrollView (ptr only), SVEvent (ptr only)
+
+namespace tesseract {
+
+class SVMenuNode;
+
+class BoolParam;
+class DoubleParam;
+class IntParam;
+class StringParam;
+class Tesseract;
+
+// A list of all possible parameter types used.
+enum ParamType { VT_INTEGER, VT_BOOLEAN, VT_STRING, VT_DOUBLE };
+
+// A rather hackish helper structure which can take any kind of parameter input
+// (defined by ParamType) and do a couple of common operations on them, like
+// comparisond or getting its value. It is used in the context of the
+// ParamsEditor as a bridge from the internal tesseract parameters to the
+// ones displayed by the ScrollView server.
+class ParamContent : public ELIST_LINK {
+public:
+  // Compare two VC objects by their name.
+  static int Compare(const void *v1, const void *v2);
+
+  // Gets a VC object identified by its ID.
+  static ParamContent *GetParamContentById(int id);
+
+  // Constructors for the various ParamTypes.
+  ParamContent() = default;
+  explicit ParamContent(tesseract::StringParam *it);
+  explicit ParamContent(tesseract::IntParam *it);
+  explicit ParamContent(tesseract::BoolParam *it);
+  explicit ParamContent(tesseract::DoubleParam *it);
+
+  // Getters and Setters.
+  void SetValue(const char *val);
+  std::string GetValue() const;
+  const char *GetName() const;
+  const char *GetDescription() const;
+
+  int GetId() const {
+    return my_id_;
+  }
+  bool HasChanged() const {
+    return changed_;
+  }
+
+private:
+  // The unique ID of this VC object.
+  int my_id_;
+  // Whether the parameter was changed_ and thus needs to be rewritten.
+  bool changed_ = false;
+  // The actual ParamType of this VC object.
+  ParamType param_type_;
+
+  union {
+    tesseract::StringParam *sIt;
+    tesseract::IntParam *iIt;
+    tesseract::BoolParam *bIt;
+    tesseract::DoubleParam *dIt;
+  };
+};
+
+ELISTIZEH(ParamContent)
+
+// The parameters editor enables the user to edit all the parameters used within
+// tesseract. It can be invoked on its own, but is supposed to be invoked by
+// the program editor.
+class ParamsEditor : public SVEventHandler {
+public:
+  // Integrate the parameters editor as popupmenu into the existing scrollview
+  // window (usually the pg editor). If sv == null, create a new empty
+  // empty window and attach the parameter editor to that window (ugly).
+  explicit ParamsEditor(tesseract::Tesseract *, ScrollView *sv = nullptr);
+
+  // Event listener. Waits for SVET_POPUP events and processes them.
+  void Notify(const SVEvent *sve) override;
+
+private:
+  // Gets the up to the first 3 prefixes from s (split by _).
+  // For example, tesseract_foo_bar will be split into tesseract,foo and bar.
+  void GetPrefixes(const char *s, std::string *level_one, std::string *level_two, std::string *level_three);
+
+  // Gets the first n words (split by _) and puts them in t.
+  // For example, tesseract_foo_bar with N=2 will yield tesseract_foo_.
+  void GetFirstWords(const char *s, // source string
+                     int n,         // number of words
+                     char *t);      // target string
+
+  // Find all editable parameters used within tesseract and create a
+  // SVMenuNode tree from it.
+  SVMenuNode *BuildListOfAllLeaves(tesseract::Tesseract *tess);
+
+  // Write all (changed_) parameters to a config file.
+  void WriteParams(char *filename, bool changes_only);
+
+  ScrollView *sv_window_;
+};
+
+} // namespace tesseract
+
+#endif // !GRAPHICS_DISABLED
+#endif // TESSERACT_CCMAIN_PARAMSD_H_