1 /********************************************************************** 2 * File: ocrrow.h (Formerly row.h) 3 * Description: Code for the ROW class. 4 * Author: Ray Smith 5 * Created: Tue Oct 08 15:58:04 BST 1991 6 * 7 * (C) Copyright 1991, Hewlett-Packard Ltd. 8 ** Licensed under the Apache License, Version 2.0 (the "License"); 9 ** you may not use this file except in compliance with the License. 10 ** You may obtain a copy of the License at 11 ** http://www.apache.org/licenses/LICENSE-2.0 12 ** Unless required by applicable law or agreed to in writing, software 13 ** distributed under the License is distributed on an "AS IS" BASIS, 14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 ** See the License for the specific language governing permissions and 16 ** limitations under the License. 17 * 18 **********************************************************************/ 19 20 #ifndef OCRROW_H 21 #define OCRROW_H 22 23 #include <stdio.h> 24 #include "quspline.h" 25 #include "werd.h" 26 27 class TO_ROW; 28 29 class ROW:public ELIST_LINK 30 { 31 friend void tweak_row_baseline(ROW *); 32 public: ROW()33 ROW() { 34 } //empty constructor 35 ROW( //constructor 36 inT32 spline_size, //no of segments 37 inT32 *xstarts, //segment boundaries 38 double *coeffs, //coefficients //ascender size 39 float x_height, 40 float ascenders, 41 float descenders, //descender size 42 inT16 kern, //char gap 43 inT16 space); //word gap 44 ROW( //constructor 45 TO_ROW *row, //textord row 46 inT16 kern, //char gap 47 inT16 space); //word gap 48 word_list()49 WERD_LIST *word_list() { //get words 50 return &words; 51 } 52 base_line(float xpos)53 float base_line( //compute baseline 54 float xpos) const { //at the position 55 //get spline value 56 return (float) baseline.y (xpos); 57 } x_height()58 float x_height() const { //return x height 59 return xheight; 60 } set_x_height(float new_xheight)61 void set_x_height(float new_xheight) { // set x height 62 xheight = new_xheight; 63 } kern()64 inT32 kern() const { //return kerning 65 return kerning; 66 } space()67 inT32 space() const { //return spacing 68 return spacing; 69 } ascenders()70 float ascenders() const { //return size 71 return ascrise; 72 } descenders()73 float descenders() const { //return size 74 return descdrop; 75 } bounding_box()76 TBOX bounding_box() const { //return bounding box 77 return bound_box; 78 } 79 80 void recalc_bounding_box(); //recalculate BB 81 82 void move( // reposition row 83 const ICOORD vec); // by vector 84 85 void print( //print 86 FILE *fp); //file to print on 87 88 void plot( //draw one 89 ScrollView* window, //window to draw in 90 ScrollView::Color colour); //uniform colour 91 void plot( //draw one 92 ScrollView* window); //in rainbow colours 93 94 #ifndef GRAPHICS_DISABLED plot_baseline(ScrollView * window,ScrollView::Color colour)95 void plot_baseline( //draw the baseline 96 ScrollView* window, //window to draw in 97 ScrollView::Color colour) { //colour to draw 98 //draw it 99 baseline.plot (window, colour); 100 } 101 #endif 102 prep_serialise()103 void prep_serialise() { //set ptrs to counts 104 words.prep_serialise (); 105 baseline.prep_serialise (); 106 } 107 dump(FILE * f)108 void dump( //write external bits 109 FILE *f) { 110 words.dump (f); 111 baseline.dump (f); 112 } 113 de_dump(FILE * f)114 void de_dump( //read external bits 115 FILE *f) { 116 words.de_dump (f); 117 baseline.de_dump (f); 118 } 119 120 //assignment 121 make_serialise (ROW) ROW & operator= ( 122 const ROW & source); //from this 123 124 private: 125 inT32 kerning; //inter char gap 126 inT32 spacing; //inter word gap 127 TBOX bound_box; //bounding box 128 float xheight; //height of line 129 float ascrise; //size of ascenders 130 float descdrop; //-size of descenders 131 WERD_LIST words; //words 132 QSPLINE baseline; //baseline spline 133 }; 134 135 ELISTIZEH_S (ROW) 136 #endif 137