Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccstruct/pdblock.cpp @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /**********************************************************************
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2 * File: pdblock.cpp
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3 * Description: PDBLK member functions and iterator functions.
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4 * Author: Ray Smith
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5 *
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6 * (C) Copyright 1991, Hewlett-Packard Ltd.
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7 ** Licensed under the Apache License, Version 2.0 (the "License");
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8 ** you may not use this file except in compliance with the License.
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9 ** You may obtain a copy of the License at
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10 ** http://www.apache.org/licenses/LICENSE-2.0
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11 ** Unless required by applicable law or agreed to in writing, software
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12 ** distributed under the License is distributed on an "AS IS" BASIS,
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13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 ** See the License for the specific language governing permissions and
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15 ** limitations under the License.
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16 *
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17 **********************************************************************/
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19 // Include automatically generated configuration file if running autoconf.
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20 #ifdef HAVE_CONFIG_H
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21 # include "config_auto.h"
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22 #endif
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24 #include "pdblock.h"
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26 #include <allheaders.h>
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28 #include <cinttypes> // for PRId32
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29 #include <cstdlib>
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30 #include <memory> // std::unique_ptr
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32 namespace tesseract {
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34 #define BLOCK_LABEL_HEIGHT 150 // char height of block id
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36 constexpr ERRCODE BADBLOCKLINE("Y coordinate in block out of bounds");
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37 constexpr ERRCODE LOSTBLOCKLINE("Can't find rectangle for line");
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39 /**********************************************************************
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40 * PDBLK::PDBLK
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41 *
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42 * Constructor for a simple rectangular block.
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43 **********************************************************************/
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44 PDBLK::PDBLK( // rectangular block
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45 TDimension xmin, // bottom left
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46 TDimension ymin,
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47 TDimension xmax, // top right
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48 TDimension ymax)
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49 : box(ICOORD(xmin, ymin), ICOORD(xmax, ymax)) {
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50 // boundaries
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51 ICOORDELT_IT left_it = &leftside;
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52 ICOORDELT_IT right_it = &rightside;
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54 hand_poly = nullptr;
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55 left_it.set_to_list(&leftside);
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56 right_it.set_to_list(&rightside);
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57 // make default box
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58 left_it.add_to_end(new ICOORDELT(xmin, ymin));
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59 left_it.add_to_end(new ICOORDELT(xmin, ymax));
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60 right_it.add_to_end(new ICOORDELT(xmax, ymin));
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61 right_it.add_to_end(new ICOORDELT(xmax, ymax));
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62 index_ = 0;
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63 }
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65 /**********************************************************************
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66 * PDBLK::set_sides
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67 *
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68 * Sets left and right vertex lists
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69 **********************************************************************/
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71 void PDBLK::set_sides( // set vertex lists
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72 ICOORDELT_LIST *left, // left vertices
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73 ICOORDELT_LIST *right // right vertices
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74 ) {
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75 // boundaries
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76 ICOORDELT_IT left_it = &leftside;
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77 ICOORDELT_IT right_it = &rightside;
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79 leftside.clear();
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80 left_it.move_to_first();
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81 left_it.add_list_before(left);
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82 rightside.clear();
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83 right_it.move_to_first();
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84 right_it.add_list_before(right);
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85 }
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87 /**********************************************************************
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88 * PDBLK::contains
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89 *
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90 * Return true if the given point is within the block.
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91 **********************************************************************/
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92
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93 bool PDBLK::contains( // test containment
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94 ICOORD pt // point to test
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95 ) {
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96 BLOCK_RECT_IT it = this; // rectangle iterator
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97 ICOORD bleft, tright; // corners of rectangle
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99 for (it.start_block(); !it.cycled_rects(); it.forward()) {
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100 // get rectangle
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101 it.bounding_box(bleft, tright);
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102 // inside rect
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103 if (pt.x() >= bleft.x() && pt.x() <= tright.x() && pt.y() >= bleft.y() &&
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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104 pt.y() <= tright.y()) {
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105 return true; // is inside
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106 }
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107 }
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108 return false; // not inside
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109 }
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110
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111 /**********************************************************************
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112 * PDBLK::move
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113 *
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114 * Reposition block
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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115 **********************************************************************/
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116
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117 void PDBLK::move( // reposition block
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118 const ICOORD vec // by vector
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119 ) {
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120 ICOORDELT_IT it(&leftside);
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121
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122 for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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123 *(it.data()) += vec;
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124 }
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125
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126 it.set_to_list(&rightside);
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127
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128 for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
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129 *(it.data()) += vec;
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130 }
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131
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132 box.move(vec);
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133 }
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134
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135 // Returns a binary Pix mask with a 1 pixel for every pixel within the
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136 // block. Rotates the coordinate system by rerotation prior to rendering.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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137 Image PDBLK::render_mask(const FCOORD &rerotation, TBOX *mask_box) {
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138 TBOX rotated_box(box);
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parents:
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139 rotated_box.rotate(rerotation);
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parents:
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140 Image pix = pixCreate(rotated_box.width(), rotated_box.height(), 1);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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141 if (hand_poly != nullptr) {
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parents:
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142 // We are going to rotate, so get a deep copy of the points and
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parents:
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143 // make a new POLY_BLOCK with it.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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144 ICOORDELT_LIST polygon;
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parents:
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145 polygon.deep_copy(hand_poly->points(), ICOORDELT::deep_copy);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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146 POLY_BLOCK image_block(&polygon, hand_poly->isA());
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parents:
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147 image_block.rotate(rerotation);
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148 // Block outline is a polygon, so use a PB_LINE_IT to get the
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149 // rasterized interior. (Runs of interior pixels on a line.)
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parents:
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150 auto *lines = new PB_LINE_IT(&image_block);
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parents:
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151 for (int y = box.bottom(); y < box.top(); ++y) {
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parents:
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152 const std::unique_ptr</*non-const*/ ICOORDELT_LIST> segments(lines->get_line(y));
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parents:
diff changeset
153 if (!segments->empty()) {
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parents:
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154 ICOORDELT_IT s_it(segments.get());
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parents:
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155 // Each element of segments is a start x and x size of the
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parents:
diff changeset
156 // run of interior pixels.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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157 for (s_it.mark_cycle_pt(); !s_it.cycled_list(); s_it.forward()) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
158 int start = s_it.data()->x();
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parents:
diff changeset
159 int xext = s_it.data()->y();
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parents:
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160 // Set the run of pixels to 1.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
161 pixRasterop(pix, start - rotated_box.left(),
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parents:
diff changeset
162 rotated_box.height() - 1 - (y - rotated_box.bottom()), xext, 1, PIX_SET,
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parents:
diff changeset
163 nullptr, 0, 0);
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164 }
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165 }
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parents:
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166 }
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parents:
diff changeset
167 delete lines;
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parents:
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168 } else {
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169 // Just fill the whole block as there is only a bounding box.
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parents:
diff changeset
170 pixRasterop(pix, 0, 0, rotated_box.width(), rotated_box.height(), PIX_SET, nullptr, 0, 0);
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171 }
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parents:
diff changeset
172 if (mask_box != nullptr) {
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parents:
diff changeset
173 *mask_box = rotated_box;
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parents:
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174 }
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parents:
diff changeset
175 return pix;
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parents:
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176 }
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parents:
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177
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parents:
diff changeset
178 /**********************************************************************
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parents:
diff changeset
179 * PDBLK::plot
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parents:
diff changeset
180 *
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parents:
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181 * Plot the outline of a block in the given colour.
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parents:
diff changeset
182 **********************************************************************/
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183
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parents:
diff changeset
184 #ifndef GRAPHICS_DISABLED
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parents:
diff changeset
185 void PDBLK::plot( // draw outline
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parents:
diff changeset
186 ScrollView *window, // window to draw in
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parents:
diff changeset
187 int32_t serial, // serial number
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parents:
diff changeset
188 ScrollView::Color colour // colour to draw in
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parents:
diff changeset
189 ) {
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parents:
diff changeset
190 ICOORD startpt; // start of outline
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parents:
diff changeset
191 ICOORD endpt; // end of outline
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parents:
diff changeset
192 ICOORD prevpt; // previous point
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 ICOORDELT_IT it = &leftside; // iterator
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parents:
diff changeset
194
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parents:
diff changeset
195 // set the colour
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
196 window->Pen(colour);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 window->TextAttributes("Times", BLOCK_LABEL_HEIGHT, false, false, false);
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parents:
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198
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parents:
diff changeset
199 if (hand_poly != nullptr) {
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parents:
diff changeset
200 hand_poly->plot(window, serial);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
201 } else if (!leftside.empty()) {
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202 startpt = *(it.data()); // bottom left corner
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203 // tprintf("Block %d bottom left is (%d,%d)\n",
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204 // serial,startpt.x(),startpt.y());
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205 char temp_buff[34];
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206 # if !defined(_WIN32) || defined(__MINGW32__)
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207 snprintf(temp_buff, sizeof(temp_buff), "%" PRId32, serial);
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208 # else
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209 _ultoa(serial, temp_buff, 10);
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210 # endif
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211 window->Text(startpt.x(), startpt.y(), temp_buff);
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212
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213 window->SetCursor(startpt.x(), startpt.y());
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214 do {
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215 prevpt = *(it.data()); // previous point
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216 it.forward(); // move to next point
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217 // draw round corner
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218 window->DrawTo(prevpt.x(), it.data()->y());
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219 window->DrawTo(it.data()->x(), it.data()->y());
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220 } while (!it.at_last()); // until end of list
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221 endpt = *(it.data()); // end point
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222
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223 // other side of boundary
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224 window->SetCursor(startpt.x(), startpt.y());
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225 it.set_to_list(&rightside);
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226 prevpt = startpt;
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227 for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
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228 // draw round corner
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229 window->DrawTo(prevpt.x(), it.data()->y());
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230 window->DrawTo(it.data()->x(), it.data()->y());
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231 prevpt = *(it.data()); // previous point
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232 }
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233 // close boundary
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234 window->DrawTo(endpt.x(), endpt.y());
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235 }
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236 }
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237 #endif
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238
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239 /**********************************************************************
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240 * PDBLK::operator=
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241 *
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242 * Assignment - duplicate the block structure, but with an EMPTY row list.
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243 **********************************************************************/
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244
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245 PDBLK &PDBLK::operator=( // assignment
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246 const PDBLK &source // from this
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247 ) {
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248 // this->ELIST_LINK::operator=(source);
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249 if (!leftside.empty()) {
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250 leftside.clear();
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251 }
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252 if (!rightside.empty()) {
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253 rightside.clear();
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254 }
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255 leftside.deep_copy(&source.leftside, &ICOORDELT::deep_copy);
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256 rightside.deep_copy(&source.rightside, &ICOORDELT::deep_copy);
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257 box = source.box;
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258 return *this;
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259 }
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260
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diff changeset
261 /**********************************************************************
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diff changeset
262 * BLOCK_RECT_IT::BLOCK_RECT_IT
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263 *
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264 * Construct a block rectangle iterator.
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265 **********************************************************************/
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266
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diff changeset
267 BLOCK_RECT_IT::BLOCK_RECT_IT(
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268 // iterate rectangles
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269 PDBLK *blkptr // from block
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270 )
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271 : left_it(&blkptr->leftside), right_it(&blkptr->rightside) {
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272 block = blkptr; // remember block
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273 // non empty list
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parents:
diff changeset
274 if (!blkptr->leftside.empty()) {
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275 start_block(); // ready for iteration
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276 }
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277 }
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278
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parents:
diff changeset
279 /**********************************************************************
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parents:
diff changeset
280 * BLOCK_RECT_IT::set_to_block
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parents:
diff changeset
281 *
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282 * Start a new block.
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283 **********************************************************************/
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284
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diff changeset
285 void BLOCK_RECT_IT::set_to_block( // start (new) block
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diff changeset
286 PDBLK *blkptr) { // block to start
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diff changeset
287 block = blkptr; // remember block
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parents:
diff changeset
288 // set iterators
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parents:
diff changeset
289 left_it.set_to_list(&blkptr->leftside);
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parents:
diff changeset
290 right_it.set_to_list(&blkptr->rightside);
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parents:
diff changeset
291 if (!blkptr->leftside.empty()) {
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parents:
diff changeset
292 start_block(); // ready for iteration
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diff changeset
293 }
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294 }
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295
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parents:
diff changeset
296 /**********************************************************************
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parents:
diff changeset
297 * BLOCK_RECT_IT::start_block
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diff changeset
298 *
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diff changeset
299 * Restart a block.
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300 **********************************************************************/
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diff changeset
301
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parents:
diff changeset
302 void BLOCK_RECT_IT::start_block() { // start (new) block
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
303 left_it.move_to_first();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
304 right_it.move_to_first();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
305 left_it.mark_cycle_pt();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
306 right_it.mark_cycle_pt();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
307 ymin = left_it.data()->y(); // bottom of first box
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
308 ymax = left_it.data_relative(1)->y();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
309 if (right_it.data_relative(1)->y() < ymax) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
310 // smallest step
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
311 ymax = right_it.data_relative(1)->y();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
312 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
313 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
314
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
315 /**********************************************************************
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
316 * BLOCK_RECT_IT::forward
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
317 *
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
318 * Move to the next rectangle in the block.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
319 **********************************************************************/
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
320
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
321 void BLOCK_RECT_IT::forward() { // next rectangle
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
322 if (!left_it.empty()) { // non-empty list
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
323 if (left_it.data_relative(1)->y() == ymax) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
324 left_it.forward(); // move to meet top
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
325 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
326 if (right_it.data_relative(1)->y() == ymax) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
327 right_it.forward();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
328 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
329 // last is special
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
330 if (left_it.at_last() || right_it.at_last()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
331 left_it.move_to_first(); // restart
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
332 right_it.move_to_first();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
333 // now at bottom
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
334 ymin = left_it.data()->y();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
335 } else {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
336 ymin = ymax; // new bottom
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
337 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
338 // next point
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
339 ymax = left_it.data_relative(1)->y();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
340 if (right_it.data_relative(1)->y() < ymax) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
341 // least step forward
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
342 ymax = right_it.data_relative(1)->y();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
343 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
344 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
345 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
346
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
347 /**********************************************************************
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
348 * BLOCK_LINE_IT::get_line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
349 *
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
350 * Get the start and width of a line in the block.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
351 **********************************************************************/
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
352
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
353 TDimension BLOCK_LINE_IT::get_line( // get a line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
354 TDimension y, // line to get
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
355 TDimension &xext // output extent
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
356 ) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
357 ICOORD bleft; // bounding box
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
358 ICOORD tright; // of block & rect
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
359
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
360 // get block box
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
361 block->bounding_box(bleft, tright);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
362 if (y < bleft.y() || y >= tright.y()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
363 // block->print(stderr,false);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
364 BADBLOCKLINE.error("BLOCK_LINE_IT::get_line", ABORT, "Y=%d", y);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
365 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
366
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
367 // get rectangle box
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
368 rect_it.bounding_box(bleft, tright);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
369 // inside rectangle
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
370 if (y >= bleft.y() && y < tright.y()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
371 // width of line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
372 xext = tright.x() - bleft.x();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
373 return bleft.x(); // start of line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
374 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
375 for (rect_it.start_block(); !rect_it.cycled_rects(); rect_it.forward()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
376 // get rectangle box
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
377 rect_it.bounding_box(bleft, tright);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
378 // inside rectangle
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
379 if (y >= bleft.y() && y < tright.y()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
380 // width of line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
381 xext = tright.x() - bleft.x();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
382 return bleft.x(); // start of line
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
383 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
384 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
385 LOSTBLOCKLINE.error("BLOCK_LINE_IT::get_line", ABORT, "Y=%d", y);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
386 return 0; // dummy to stop warning
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
387 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
388
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
389 } // namespace tesseract