/* -*-C-*- ******************************************************************************** * * File: matrix.h (Formerly matrix.h) * Description: Ratings matrix code. (Used by associator) * Author: Mark Seaman, OCR Technology * Created: Wed May 16 13:22:06 1990 * Modified: Tue Mar 19 16:00:20 1991 (Mark Seaman) marks@hpgrlt * Language: C * Package: N/A * Status: Experimental (Do Not Distribute) * * (c) Copyright 1990, Hewlett-Packard Company. ** 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 MATRIX_H #define MATRIX_H #include "ratngs.h" #include "unicharset.h" static const int NOT_CLASSIFIED = 0; // A generic class to store a matrix with entries of type T. template <class T> class GENERIC_MATRIX { public: // Allocate a piece of memory to hold a matrix of the given dimension. // Initialize all the elements of the matrix to 0/NULL. GENERIC_MATRIX(int dimension) { matrix_ = new T[dimension * dimension]; dimension_ = dimension; for (int x = 0; x < dimension; x++) for (int y = 0; y < dimension; y++) this->put(x, y, NOT_CLASSIFIED); } ~GENERIC_MATRIX() { delete[] matrix_; } // Provide the dimension of this square matrix. long dimension() const { return dimension_; } // Expression to select a specific location in the matrix. int index(int column, int row) const { return (row * this->dimension() + column); } // Put a list element into the matrix at a specific location. void put(int column, int row, T thing) { matrix_[this->index(column, row)] = thing; } // Get the item at a specified location from the matrix. T get(int column, int row) const { return matrix_[this->index(column, row)]; } // Delete objects pointed to by matrix_[i]. void delete_matrix_pointers() { for (int x = 0; x < this->dimension(); x++) { for (int y = 0; y < this->dimension(); y++) { T matrix_cell = this->get(x, y); if (matrix_cell != NOT_CLASSIFIED) delete matrix_cell; } } } private: T *matrix_; int dimension_; }; class MATRIX : public GENERIC_MATRIX<BLOB_CHOICE_LIST *> { public: MATRIX(int dimension) : GENERIC_MATRIX<BLOB_CHOICE_LIST *>(dimension) {} // Print a shortened version of the contents of the matrix. void print(const UNICHARSET ¤t_unicharset); }; #endif