| /********************************************************************** |
| * 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 <stdio.h> |
| #include "quspline.h" |
| #include "werd.h" |
| |
| class TO_ROW; |
| |
| class ROW:public ELIST_LINK |
| { |
| friend void tweak_row_baseline(ROW *); |
| public: |
| ROW() { |
| } //empty constructor |
| ROW( //constructor |
| inT32 spline_size, //no of segments |
| inT32 *xstarts, //segment boundaries |
| double *coeffs, //coefficients //ascender size |
| float x_height, |
| float ascenders, |
| float descenders, //descender size |
| inT16 kern, //char gap |
| inT16 space); //word gap |
| ROW( //constructor |
| TO_ROW *row, //textord row |
| inT16 kern, //char gap |
| inT16 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 (float) baseline.y (xpos); |
| } |
| float x_height() const { //return x height |
| return xheight; |
| } |
| inT32 kern() const { //return kerning |
| return kerning; |
| } |
| inT32 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; |
| } |
| |
| void recalc_bounding_box(); //recalculate BB |
| |
| void move( // reposition row |
| const ICOORD vec); // by vector |
| |
| void print( //print |
| FILE *fp); //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 |
| |
| void prep_serialise() { //set ptrs to counts |
| words.prep_serialise (); |
| baseline.prep_serialise (); |
| } |
| |
| void dump( //write external bits |
| FILE *f) { |
| words.dump (f); |
| baseline.dump (f); |
| } |
| |
| void de_dump( //read external bits |
| FILE *f) { |
| words.de_dump (f); |
| baseline.de_dump (f); |
| } |
| |
| //assignment |
| make_serialise (ROW) ROW & operator= ( |
| const ROW & source); //from this |
| |
| private: |
| inT32 kerning; //inter char gap |
| inT32 spacing; //inter word gap |
| TBOX bound_box; //bounding box |
| float xheight; //height of line |
| float ascrise; //size of ascenders |
| float descdrop; //-size of descenders |
| WERD_LIST words; //words |
| QSPLINE baseline; //baseline spline |
| }; |
| |
| ELISTIZEH_S (ROW) |
| #endif |