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/**********************************************************************
* File: ocrrow.cpp (Formerly row.c)
* 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.
*
**********************************************************************/
#include "mfcpch.h"
#include "ocrrow.h"
#include "blobbox.h"
ELISTIZE_S (ROW)
/**********************************************************************
* ROW::ROW
*
* Constructor to build a ROW. Only the stats stuff are given here.
* The words are added directly.
**********************************************************************/
ROW::ROW ( //constructor
inT32 spline_size, //no of segments
inT32 * xstarts, //segment boundaries
double *coeffs, //coefficients
float x_height, //line height
float ascenders, //ascender size
float descenders, //descender drop
inT16 kern, //char gap
inT16 space //word gap
):
baseline(spline_size, xstarts, coeffs) {
kerning = kern; //just store stuff
spacing = space;
xheight = x_height;
ascrise = ascenders;
descdrop = descenders;
}
/**********************************************************************
* ROW::ROW
*
* Constructor to build a ROW. Only the stats stuff are given here.
* The words are added directly.
**********************************************************************/
ROW::ROW( //constructor
TO_ROW *to_row, //source row
inT16 kern, //char gap
inT16 space //word gap
) {
kerning = kern; //just store stuff
spacing = space;
xheight = to_row->xheight;
ascrise = to_row->ascrise;
descdrop = to_row->descdrop;
baseline = to_row->baseline;
}
/**********************************************************************
* ROW::recalc_bounding_box
*
* Set the bounding box correctly
**********************************************************************/
void ROW::recalc_bounding_box() { //recalculate BB
WERD *word; //current word
WERD_IT it = &words; //words of ROW
inT16 left; //of word
inT16 prev_left; //old left
if (!it.empty ()) {
word = it.data ();
prev_left = word->bounding_box ().left ();
it.forward ();
while (!it.at_first ()) {
word = it.data ();
left = word->bounding_box ().left ();
if (left < prev_left) {
it.move_to_first ();
//words in BB order
it.sort (word_comparator);
break;
}
prev_left = left;
it.forward ();
}
}
for (it.mark_cycle_pt (); !it.cycled_list (); it.forward ()) {
word = it.data ();
if (it.at_first ())
word->set_flag (W_BOL, TRUE);
else
//not start of line
word->set_flag (W_BOL, FALSE);
if (it.at_last ())
word->set_flag (W_EOL, TRUE);
else
//not end of line
word->set_flag (W_EOL, FALSE);
//extend BB as reqd
bound_box += word->bounding_box ();
}
}
/**********************************************************************
* ROW::move
*
* Reposition row by vector
**********************************************************************/
void ROW::move( // reposition row
const ICOORD vec // by vector
) {
WERD_IT it(&words); // word iterator
for (it.mark_cycle_pt (); !it.cycled_list (); it.forward ())
it.data ()->move (vec);
bound_box.move (vec);
baseline.move (vec);
}
/**********************************************************************
* ROW::print
*
* Display members
**********************************************************************/
void ROW::print( //print
FILE *fp //file to print on
) {
tprintf ("Kerning= %d\n", kerning);
tprintf ("Spacing= %d\n", spacing);
bound_box.print ();
tprintf ("Xheight= %f\n", xheight);
tprintf ("Ascrise= %f\n", ascrise);
tprintf ("Descdrop= %f\n", descdrop);
}
/**********************************************************************
* ROW::plot
*
* Draw the ROW in the given colour.
**********************************************************************/
#ifndef GRAPHICS_DISABLED
void ROW::plot( //draw it
ScrollView* window, //window to draw in
ScrollView::Color colour //colour to draw in
) {
WERD *word; //current word
WERD_IT it = &words; //words of ROW
for (it.mark_cycle_pt (); !it.cycled_list (); it.forward ()) {
word = it.data ();
word->plot (window, colour); //all in one colour
}
}
#endif
/**********************************************************************
* ROW::plot
*
* Draw the ROW in rainbow colours.
**********************************************************************/
#ifndef GRAPHICS_DISABLED
void ROW::plot( //draw it
ScrollView* window //window to draw in
) {
WERD *word; //current word
WERD_IT it = &words; //words of ROW
for (it.mark_cycle_pt (); !it.cycled_list (); it.forward ()) {
word = it.data ();
word->plot (window); //in rainbow colours
}
}
#endif
/**********************************************************************
* ROW::operator=
*
* Assign rows by duplicating the row structure but NOT the WERDLIST
**********************************************************************/
ROW & ROW::operator= ( //assignment
const ROW & source //from this
) {
this->ELIST_LINK::operator= (source);
kerning = source.kerning;
spacing = source.spacing;
xheight = source.xheight;
ascrise = source.ascrise;
descdrop = source.descdrop;
if (!words.empty ())
words.clear ();
baseline = source.baseline; //QSPLINES must do =
bound_box = source.bound_box;
return *this;
}
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