Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccstruct/rect.h @ 33:c4daa0c83d64

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author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 21 Sep 2025 17:55:13 +0200
parents b50eed0cc0ef
children
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1 /**********************************************************************
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2 * File: rect.h (Formerly box.h)
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3 * Description: Bounding box class definition.
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4 * Author: Phil Cheatle
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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 #ifndef RECT_H
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20 #define RECT_H
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22 #include "points.h" // for ICOORD, FCOORD
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23 #include "scrollview.h" // for ScrollView, ScrollView::Color
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24 #include "tesstypes.h" // for TDimension
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25 #include "tprintf.h" // for tprintf
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27 #include <tesseract/export.h> // for DLLSYM
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29 #include <algorithm> // for std::max, std::min
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30 #include <cmath> // for std::ceil, std::floor
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31 #include <cstdint> // for INT16_MAX
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32 #include <cstdio> // for FILE
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33 #include <string> // for std::string
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35 namespace tesseract {
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37 class TESS_API TBOX { // bounding box
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38 public:
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39 TBOX()
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40 : // empty constructor making a null box
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41 bot_left(INT16_MAX, INT16_MAX)
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42 , top_right(-INT16_MAX, -INT16_MAX) {}
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44 TBOX( // constructor
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45 const ICOORD pt1, // one corner
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46 const ICOORD pt2); // the other corner
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48 //*********************************************************************
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49 // TBOX::TBOX() Constructor from 4 integer values.
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50 // Note: It is caller's responsibility to provide values
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51 // in the right order.
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52 //*********************************************************************
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53 TBOX( // constructor
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54 TDimension left, TDimension bottom, TDimension right, TDimension top)
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55 : bot_left(left, bottom), top_right(right, top) {}
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57 TBOX( // box around FCOORD
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58 const FCOORD pt);
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60 bool null_box() const { // Is box null
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61 return ((left() >= right()) || (top() <= bottom()));
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62 }
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64 bool operator==(const TBOX &other) const {
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65 return bot_left == other.bot_left && top_right == other.top_right;
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66 }
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68 TDimension top() const { // coord of top
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69 return top_right.y();
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70 }
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71 void set_top(int y) {
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72 top_right.set_y(y);
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73 }
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75 TDimension bottom() const { // coord of bottom
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76 return bot_left.y();
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77 }
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78 void set_bottom(int y) {
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79 bot_left.set_y(y);
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80 }
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82 TDimension left() const { // coord of left
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83 return bot_left.x();
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84 }
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85 void set_left(int x) {
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86 bot_left.set_x(x);
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87 }
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89 TDimension right() const { // coord of right
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90 return top_right.x();
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91 }
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92 void set_right(int x) {
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93 top_right.set_x(x);
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94 }
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95 int x_middle() const {
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96 return (bot_left.x() + top_right.x()) / 2;
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97 }
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98 int y_middle() const {
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99 return (bot_left.y() + top_right.y()) / 2;
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100 }
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101
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parents:
diff changeset
102 const ICOORD &botleft() const { // access function
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
103 return bot_left;
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parents:
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104 }
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parents:
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105
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parents:
diff changeset
106 ICOORD botright() const { // ~ access function
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
107 return ICOORD(top_right.x(), bot_left.y());
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108 }
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109
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parents:
diff changeset
110 ICOORD topleft() const { // ~ access function
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parents:
diff changeset
111 return ICOORD(bot_left.x(), top_right.y());
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parents:
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112 }
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113
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parents:
diff changeset
114 const ICOORD &topright() const { // access function
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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115 return top_right;
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116 }
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117
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118 TDimension height() const { // how high is it?
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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119 if (!null_box()) {
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120 return top_right.y() - bot_left.y();
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parents:
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121 } else {
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parents:
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122 return 0;
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123 }
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Franz Glasner <fzglas.hg@dom66.de>
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124 }
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125
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126 TDimension width() const { // how wide is it?
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127 if (!null_box()) {
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parents:
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128 return top_right.x() - bot_left.x();
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129 } else {
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130 return 0;
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131 }
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132 }
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133
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parents:
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134 int32_t area() const { // what is the area?
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parents:
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135 if (!null_box()) {
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parents:
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136 return width() * height();
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parents:
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137 } else {
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parents:
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138 return 0;
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parents:
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139 }
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140 }
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parents:
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141
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parents:
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142 // Pads the box on either side by the supplied x,y pad amounts.
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parents:
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143 // NO checks for exceeding any bounds like 0 or an image size.
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parents:
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144 void pad(int xpad, int ypad) {
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parents:
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145 ICOORD pad(xpad, ypad);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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146 bot_left -= pad;
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parents:
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147 top_right += pad;
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148 }
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149
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parents:
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150 void move_bottom_edge( // move one edge
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parents:
diff changeset
151 const TDimension y) { // by +/- y
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parents:
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152 bot_left += ICOORD(0, y);
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153 }
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parents:
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154
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parents:
diff changeset
155 void move_left_edge( // move one edge
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
156 const TDimension x) { // by +/- x
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parents:
diff changeset
157 bot_left += ICOORD(x, 0);
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parents:
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158 }
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parents:
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159
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parents:
diff changeset
160 void move_right_edge( // move one edge
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
161 const TDimension x) { // by +/- x
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parents:
diff changeset
162 top_right += ICOORD(x, 0);
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parents:
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163 }
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parents:
diff changeset
164
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parents:
diff changeset
165 void move_top_edge( // move one edge
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
166 const TDimension y) { // by +/- y
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parents:
diff changeset
167 top_right += ICOORD(0, y);
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parents:
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168 }
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parents:
diff changeset
169
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
170 void move( // move 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
171 const ICOORD vec) { // by vector
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
172 bot_left += vec;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
173 top_right += vec;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
174 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
175
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
176 void move( // move 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
177 const FCOORD vec) { // by float vector
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
178 bot_left.set_x(static_cast<TDimension>(std::floor(bot_left.x() + vec.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
179 // round left
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
180 bot_left.set_y(static_cast<TDimension>(std::floor(bot_left.y() + vec.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
181 // round down
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
182 top_right.set_x(static_cast<TDimension>(std::ceil(top_right.x() + vec.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
183 // round right
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
184 top_right.set_y(static_cast<TDimension>(std::ceil(top_right.y() + vec.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
185 // round up
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
186 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
187
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
188 void scale( // scale 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
189 const float f) { // by multiplier
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parents:
diff changeset
190 // round left
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
191 bot_left.set_x(static_cast<TDimension>(std::floor(bot_left.x() * f)));
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
192 // round down
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
193 bot_left.set_y(static_cast<TDimension>(std::floor(bot_left.y() * f)));
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
194 // round right
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
195 top_right.set_x(static_cast<TDimension>(std::ceil(top_right.x() * f)));
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
196 // round up
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 top_right.set_y(static_cast<TDimension>(std::ceil(top_right.y() * f)));
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
198 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
199 void scale( // scale 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
200 const FCOORD vec) { // by float vector
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
201 bot_left.set_x(static_cast<TDimension>(std::floor(bot_left.x() * vec.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
202 bot_left.set_y(static_cast<TDimension>(std::floor(bot_left.y() * vec.y())));
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203 top_right.set_x(static_cast<TDimension>(std::ceil(top_right.x() * vec.x())));
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204 top_right.set_y(static_cast<TDimension>(std::ceil(top_right.y() * vec.y())));
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205 }
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206
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207 // rotate doesn't enlarge the box - it just rotates the bottom-left
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208 // and top-right corners. Use rotate_large if you want to guarantee
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209 // that all content is contained within the rotated box.
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210 void rotate(const FCOORD &vec) { // by vector
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diff changeset
211 bot_left.rotate(vec);
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212 top_right.rotate(vec);
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213 *this = TBOX(bot_left, top_right);
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214 }
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215 // rotate_large constructs the containing bounding box of all 4
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216 // corners after rotating them. It therefore guarantees that all
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217 // original content is contained within, but also slightly enlarges the box.
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diff changeset
218 void rotate_large(const FCOORD &vec);
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219
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220 bool contains( // is pt inside box
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221 const FCOORD pt) const;
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222
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223 bool contains( // is box inside box
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224 const TBOX &box) const;
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225
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226 bool overlap( // do boxes overlap
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227 const TBOX &box) const;
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228
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229 bool major_overlap( // do boxes overlap more than half
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230 const TBOX &box) const;
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231
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232 // Do boxes overlap on x axis.
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parents:
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233 bool x_overlap(const TBOX &box) const;
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234
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235 // Return the horizontal gap between the boxes. If the boxes
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236 // overlap horizontally then the return value is negative, indicating
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237 // the amount of the overlap.
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238 int x_gap(const TBOX &box) const {
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239 return std::max(bot_left.x(), box.bot_left.x()) - std::min(top_right.x(), box.top_right.x());
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240 }
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241
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242 // Return the vertical gap between the boxes. If the boxes
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243 // overlap vertically then the return value is negative, indicating
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244 // the amount of the overlap.
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245 int y_gap(const TBOX &box) const {
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246 return std::max(bot_left.y(), box.bot_left.y()) - std::min(top_right.y(), box.top_right.y());
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247 }
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248
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249 // Do boxes overlap on x axis by more than
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250 // half of the width of the narrower box.
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251 bool major_x_overlap(const TBOX &box) const;
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252
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253 // Do boxes overlap on y axis.
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254 bool y_overlap(const TBOX &box) const;
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255
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256 // Do boxes overlap on y axis by more than
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257 // half of the height of the shorter box.
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258 bool major_y_overlap(const TBOX &box) const;
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259
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260 // fraction of current box's area covered by other
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diff changeset
261 double overlap_fraction(const TBOX &box) const;
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262
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diff changeset
263 // fraction of the current box's projected area covered by the other's
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parents:
diff changeset
264 double x_overlap_fraction(const TBOX &box) const;
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265
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266 // fraction of the current box's projected area covered by the other's
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parents:
diff changeset
267 double y_overlap_fraction(const TBOX &box) const;
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268
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diff changeset
269 // Returns true if the boxes are almost equal on x axis.
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diff changeset
270 bool x_almost_equal(const TBOX &box, int tolerance) const;
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271
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272 // Returns true if the boxes are almost equal
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diff changeset
273 bool almost_equal(const TBOX &box, int tolerance) const;
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274
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diff changeset
275 TBOX intersection( // shared area box
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diff changeset
276 const TBOX &box) const;
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277
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diff changeset
278 TBOX bounding_union( // box enclosing both
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diff changeset
279 const TBOX &box) const;
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280
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diff changeset
281 // Sets the box boundaries to the given coordinates.
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parents:
diff changeset
282 void set_to_given_coords(int x_min, int y_min, int x_max, int y_max) {
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diff changeset
283 bot_left.set_x(x_min);
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284 bot_left.set_y(y_min);
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diff changeset
285 top_right.set_x(x_max);
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parents:
diff changeset
286 top_right.set_y(y_max);
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287 }
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288
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diff changeset
289 void print() const { // print
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diff changeset
290 tprintf("Bounding box=(%d,%d)->(%d,%d)\n", left(), bottom(), right(), top());
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291 }
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diff changeset
292 // Appends the bounding box as (%d,%d)->(%d,%d) to a string.
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diff changeset
293 void print_to_str(std::string &str) const;
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294
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diff changeset
295 #ifndef GRAPHICS_DISABLED
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diff changeset
296 void plot( // use current settings
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diff changeset
297 ScrollView *fd) const { // where to paint
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diff changeset
298 fd->Rectangle(bot_left.x(), bot_left.y(), top_right.x(), top_right.y());
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299 }
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300
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diff changeset
301 void plot( // paint box
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diff changeset
302 ScrollView *fd, // where to paint
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303 ScrollView::Color fill_colour, // colour for inside
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304 ScrollView::Color border_colour) const; // colour for border
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305 #endif
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306 // Writes to the given file. Returns false in case of error.
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307 bool Serialize(FILE *fp) const;
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308 bool Serialize(TFile *fp) const;
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309
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310 // Reads from the given file. Returns false in case of error.
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311 // If swap is true, assumes a big/little-endian swap is needed.
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312 bool DeSerialize(bool swap, FILE *fp);
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diff changeset
313 bool DeSerialize(TFile *fp);
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314
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315 friend TBOX &operator+=(TBOX &, const TBOX &);
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316 // in place union
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317 friend TBOX &operator&=(TBOX &, const TBOX &);
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318 // in place intersection
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319
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320 private:
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321 ICOORD bot_left; // bottom left corner
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322 ICOORD top_right; // top right corner
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323 };
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324
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325 /**********************************************************************
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326 * TBOX::TBOX() Constructor from 1 FCOORD
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327 *
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328 **********************************************************************/
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329
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330 inline TBOX::TBOX( // constructor
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331 const FCOORD pt // floating centre
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332 ) {
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333 bot_left =
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334 ICOORD(static_cast<TDimension>(std::floor(pt.x())), static_cast<TDimension>(std::floor(pt.y())));
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335 top_right =
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336 ICOORD(static_cast<TDimension>(std::ceil(pt.x())), static_cast<TDimension>(std::ceil(pt.y())));
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337 }
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338
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339 /**********************************************************************
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340 * TBOX::contains() Is point within box
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341 *
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342 **********************************************************************/
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343
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344 inline bool TBOX::contains(const FCOORD pt) const {
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345 return ((pt.x() >= bot_left.x()) && (pt.x() <= top_right.x()) && (pt.y() >= bot_left.y()) &&
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346 (pt.y() <= top_right.y()));
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347 }
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348
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349 /**********************************************************************
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350 * TBOX::contains() Is box within box
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351 *
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352 **********************************************************************/
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353
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354 inline bool TBOX::contains(const TBOX &box) const {
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355 return (contains(box.bot_left) && contains(box.top_right));
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356 }
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357
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358 /**********************************************************************
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359 * TBOX::overlap() Do two boxes overlap?
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360 *
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361 **********************************************************************/
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362
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diff changeset
363 inline bool TBOX::overlap( // do boxes overlap
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364 const TBOX &box) const {
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365 return ((box.bot_left.x() <= top_right.x()) && (box.top_right.x() >= bot_left.x()) &&
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366 (box.bot_left.y() <= top_right.y()) && (box.top_right.y() >= bot_left.y()));
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367 }
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368
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369 /**********************************************************************
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diff changeset
370 * TBOX::major_overlap() Do two boxes overlap by at least half of the smallest?
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371 *
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372 **********************************************************************/
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373
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diff changeset
374 inline bool TBOX::major_overlap( // Do boxes overlap more that half.
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parents:
diff changeset
375 const TBOX &box) const {
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diff changeset
376 int overlap = std::min(box.top_right.x(), top_right.x());
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diff changeset
377 overlap -= std::max(box.bot_left.x(), bot_left.x());
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378 overlap += overlap;
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diff changeset
379 if (overlap < std::min(box.width(), width())) {
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diff changeset
380 return false;
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381 }
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diff changeset
382 overlap = std::min(box.top_right.y(), top_right.y());
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diff changeset
383 overlap -= std::max(box.bot_left.y(), bot_left.y());
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diff changeset
384 overlap += overlap;
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diff changeset
385 if (overlap < std::min(box.height(), height())) {
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diff changeset
386 return false;
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387 }
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parents:
diff changeset
388 return true;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
389 }
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parents:
diff changeset
390
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parents:
diff changeset
391 /**********************************************************************
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parents:
diff changeset
392 * TBOX::overlap_fraction() Fraction of area covered by the other box
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diff changeset
393 *
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diff changeset
394 **********************************************************************/
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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parents:
diff changeset
395
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parents:
diff changeset
396 inline double TBOX::overlap_fraction(const TBOX &box) const {
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parents:
diff changeset
397 double fraction = 0.0;
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parents:
diff changeset
398 if (this->area()) {
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parents:
diff changeset
399 fraction = this->intersection(box).area() * 1.0 / this->area();
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parents:
diff changeset
400 }
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parents:
diff changeset
401 return fraction;
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
402 }
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
403
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
404 /**********************************************************************
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
405 * TBOX::x_overlap() Do two boxes overlap on x-axis
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
406 *
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
407 **********************************************************************/
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
408
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
409 inline bool TBOX::x_overlap(const TBOX &box) const {
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
410 return ((box.bot_left.x() <= top_right.x()) && (box.top_right.x() >= bot_left.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
411 }
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
412
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
413 /**********************************************************************
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
414 * TBOX::major_x_overlap() Do two boxes overlap by more than half the
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
415 * width of the narrower box on the x-axis
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
416 *
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
417 **********************************************************************/
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
418
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
419 inline bool TBOX::major_x_overlap(const TBOX &box) const {
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
420 TDimension overlap = box.width();
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
421 if (this->left() > box.left()) {
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
422 overlap -= this->left() - box.left();
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
423 }
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
424 if (this->right() < box.right()) {
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
425 overlap -= box.right() - this->right();
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
426 }
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
427 return (overlap >= box.width() / 2 || overlap >= this->width() / 2);
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
428 }
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
429
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
430 /**********************************************************************
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
431 * TBOX::y_overlap() Do two boxes overlap on y-axis
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
432 *
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
433 **********************************************************************/
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
434
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
435 inline bool TBOX::y_overlap(const TBOX &box) const {
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
436 return ((box.bot_left.y() <= top_right.y()) && (box.top_right.y() >= bot_left.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
437 }
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
438
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
439 /**********************************************************************
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
440 * TBOX::major_y_overlap() Do two boxes overlap by more than half the
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
441 * height of the shorter box on the y-axis
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
442 *
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
443 **********************************************************************/
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
444
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
445 inline bool TBOX::major_y_overlap(const TBOX &box) const {
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
446 TDimension overlap = box.height();
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
447 if (this->bottom() > box.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
448 overlap -= this->bottom() - box.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
449 }
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
450 if (this->top() < box.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
451 overlap -= box.top() - this->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
452 }
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
453 return (overlap >= box.height() / 2 || overlap >= this->height() / 2);
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
454 }
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
455
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
456 /**********************************************************************
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
457 * TBOX::x_overlap_fraction() Calculates the horizontal overlap of the
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
458 * given boxes as a fraction of this boxes
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
459 * width.
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
460 *
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
461 **********************************************************************/
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
462
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
463 inline double TBOX::x_overlap_fraction(const TBOX &other) const {
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
464 int low = std::max(left(), other.left());
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
465 int high = std::min(right(), other.right());
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
466 int width = right() - left();
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
467 if (width == 0) {
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
468 int x = left();
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
469 if (other.left() <= x && x <= other.right()) {
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
470 return 1.0;
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
471 } 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
472 return 0.0;
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
473 }
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
474 } 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
475 return std::max(0.0, static_cast<double>(high - low) / width);
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
476 }
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
477 }
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
478
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
479 /**********************************************************************
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
480 * TBOX::y_overlap_fraction() Calculates the vertical overlap of the
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
481 * given boxes as a fraction of this boxes
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
482 * height.
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
483 *
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
484 **********************************************************************/
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
485
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
486 inline double TBOX::y_overlap_fraction(const TBOX &other) const {
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
487 int low = std::max(bottom(), other.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
488 int high = std::min(top(), other.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
489 int height = top() - 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
490 if (height == 0) {
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
491 int y = 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
492 if (other.bottom() <= y && y <= other.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
493 return 1.0;
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
494 } 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
495 return 0.0;
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
496 }
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
497 } 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
498 return std::max(0.0, static_cast<double>(high - low) / height);
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
499 }
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
500 }
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
501
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
502 } // namespace tesseract
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
503
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
504 #endif