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https://github.com/tesseract-ocr/tesseract.git
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a18816f839
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@441 d0cd1f9f-072b-0410-8dd7-cf729c803f20
140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
///////////////////////////////////////////////////////////////////////
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// File: varabled.cpp
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// Description: Variables Editor
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// Author: Joern Wanke
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// Created: Wed Jul 18 10:05:01 PDT 2007
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//
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// (C) Copyright 2007, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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///////////////////////////////////////////////////////////////////////
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/**
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* @file varabled.h
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* The variables editor is used to edit all the variables used within
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* tesseract from the ui.
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*/
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#ifndef GRAPHICS_DISABLED
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#ifndef VARABLED_H
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#define VARABLED_H
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#include "elst.h"
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#include "scrollview.h"
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#include "varable.h"
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#include "tesseractclass.h"
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class SVMenuNode;
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/** A list of all possible variable types used. */
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enum VarType {
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VT_INTEGER,
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VT_BOOLEAN,
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VT_STRING,
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VT_DOUBLE
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};
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/**
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* A rather hackish helper structure which can take any kind of variable input
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* (defined by VarType) and do a couple of common operations on them, like
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* comparisond or getting its value. It is used in the context of the
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* VariablesEditor as a bridge from the internal tesseract variables to the
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* ones displayed by the ScrollView server.
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*/
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class VariableContent : public ELIST_LINK {
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public:
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/** Compare two VC objects by their name. */
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static int Compare(const void* v1, const void* v2);
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/** Gets a VC object identified by its ID. */
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static VariableContent* GetVariableContentById(int id);
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/** Constructors for the various VarTypes. */
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VariableContent() {
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}
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VariableContent(STRING_VARIABLE* it);
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VariableContent(INT_VARIABLE* it);
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VariableContent(BOOL_VARIABLE* it);
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VariableContent(double_VARIABLE* it);
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/** Getters and Setters. */
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void SetValue(const char* val);
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const char* GetValue() const;
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const char* GetName() const;
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const char* GetDescription() const;
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int GetId() { return my_id_; }
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bool HasChanged() { return changed_; }
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private:
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/** The unique ID of this VC object. */
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int my_id_;
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/** Whether the variable was changed_ and thus needs to be rewritten. */
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bool changed_;
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/** The actual vartype of this VC object. */
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VarType var_type_;
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STRING_VARIABLE* sIt;
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INT_VARIABLE* iIt;
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BOOL_VARIABLE* bIt;
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double_VARIABLE* dIt;
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};
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ELISTIZEH(VariableContent)
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/**
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* The variables editor enables the user to edit all the variables used within
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* tesseract. It can be invoked on its own, but is supposed to be invoked by
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* the program editor.
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*/
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class VariablesEditor : public SVEventHandler {
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public:
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/**
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* Integrate the variables editor as popupmenu into the existing scrollview
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* window (usually the pg editor). If sv == null, create a new empty
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* empty window and attach the variables editor to that window (ugly).
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*/
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VariablesEditor(const tesseract::Tesseract*, ScrollView* sv = NULL);
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/** Event listener. Waits for SVET_POPUP events and processes them. */
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void Notify(const SVEvent* sve);
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private:
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/**
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* Gets the up to the first 3 prefixes from s (split by _).
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* For example, tesseract_foo_bar will be split into tesseract, foo, and bar.
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*/
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void GetPrefixes(const char* s, STRING* level_one,
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STRING* level_two, STRING* level_three);
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/**
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* Gets the first n words (split by _) and puts them in t.
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* For example, tesseract_foo_bar with N=2 will yield tesseract_foo_.
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*/
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void GetFirstWords(const char *s, // source string
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int n, // number of words
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char *t); // target string
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/**
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* Find all editable variables used within tesseract and create a
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* SVMenuNode tree from it.
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*/
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SVMenuNode *BuildListOfAllLeaves();
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/** Write all (changed_) variables to a config file. */
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void WriteVars(char* filename, bool changes_only);
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ScrollView* sv_window_;
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};
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#endif
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#endif
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