| /* -*-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 |