Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/viewer/svmnode.cpp @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
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2
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: svmnode.cpp
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3 // description_: ScrollView Menu Node
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4 // Author: Joern Wanke
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5 // Created: Thu Nov 29 2007
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6 //
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7 // (C) Copyright 2007, Google Inc.
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8 // Licensed under the Apache License, Version 2.0 (the "License");
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9 // you may not use this file except in compliance with the License.
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10 // You may obtain a copy of the License at
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11 // http://www.apache.org/licenses/LICENSE-2.0
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12 // Unless required by applicable law or agreed to in writing, software
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13 // distributed under the License is distributed on an "AS IS" BASIS,
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14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 // See the License for the specific language governing permissions and
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16 // limitations under the License.
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17 //
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18 ///////////////////////////////////////////////////////////////////////
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19 //
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20 // A SVMenuNode is an entity which contains the mapping from a menu entry on
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21 // the server side to the corresponding associated commands on the client.
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22 // It is designed to be a tree structure with a root node, which can then be
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23 // used to generate the appropriate messages to the server to display the
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24 // menu structure there.
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25 // A SVMenuNode can both be used in the context_ of popup menus as well as
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26 // menu bars.
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28 // Include automatically generated configuration file if running autoconf.
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29 #ifdef HAVE_CONFIG_H
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30 # include "config_auto.h"
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31 #endif
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33 #ifndef GRAPHICS_DISABLED
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35 #include "svmnode.h"
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37 #include <cstring>
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38 #include <iostream>
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40 #include "scrollview.h"
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42 namespace tesseract {
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43
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44 // Create the empty root menu node. with just a caption. All other nodes should
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45 // be added to this or one of the submenus.
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46 SVMenuNode::SVMenuNode() {
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47 cmd_event_ = -1;
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48 child_ = nullptr;
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49 next_ = nullptr;
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50 parent_ = nullptr;
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51 toggle_value_ = false;
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52 is_check_box_entry_ = false;
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53 }
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55 SVMenuNode::~SVMenuNode() = default;
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56
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57 // Create a new sub menu node with just a caption. This is used to create
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58 // nodes which act as parent nodes to other nodes (e.g. submenus).
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59 SVMenuNode *SVMenuNode::AddChild(const char *txt) {
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60 auto *s = new SVMenuNode(-1, txt, false, false);
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61 this->AddChild(s);
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62 return s;
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63 }
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65 // Create a "normal" menu node which is associated with a command event.
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66 void SVMenuNode::AddChild(const char *txt, int command_event) {
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67 this->AddChild(new SVMenuNode(command_event, txt, false, false));
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68 }
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70 // Create a menu node with an associated value (which might be changed
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71 // through the gui).
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72 void SVMenuNode::AddChild(const char *txt, int command_event, const char *val) {
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73 this->AddChild(new SVMenuNode(command_event, txt, false, false, val));
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74 }
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75
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76 // Create a menu node with an associated value and description_.
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77 void SVMenuNode::AddChild(const char *txt, int command_event, const char *val, const char *desc) {
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78 this->AddChild(new SVMenuNode(command_event, txt, false, false, val, desc));
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79 }
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80
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81 // Create a flag menu node.
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82 void SVMenuNode::AddChild(const char *txt, int command_event, int tv) {
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83 this->AddChild(new SVMenuNode(command_event, txt, tv, true));
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84 }
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85
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86 // Convenience function called from the different constructors to initialize
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87 // the different values of the menu node.
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88 SVMenuNode::SVMenuNode(int command_event, const char *txt, int tv, bool check_box_entry,
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89 const char *val, const char *desc)
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90 : text_(txt), value_(val), description_(desc) {
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91 cmd_event_ = command_event;
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92
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93 child_ = nullptr;
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94 next_ = nullptr;
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95 parent_ = nullptr;
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96 toggle_value_ = tv != 0;
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97 is_check_box_entry_ = check_box_entry;
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98 }
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99
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100 // Add a child node to this menu node.
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101 void SVMenuNode::AddChild(SVMenuNode *svmn) {
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102 svmn->parent_ = this;
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103 // No children yet.
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104 if (child_ == nullptr) {
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105 child_ = svmn;
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106 } else {
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107 SVMenuNode *cur = child_;
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108 while (cur->next_ != nullptr) {
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109 cur = cur->next_;
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110 }
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111 cur->next_ = svmn;
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112 }
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113 }
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114
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115 // Build a menu structure for the server and send the necessary messages.
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116 // Should be called on the root node. If menu_bar is true, a menu_bar menu
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117 // is built (e.g. on top of the window), if it is false a popup menu is
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118 // built which gets shown by right clicking on the window.
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119 // Deletes itself afterwards.
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120 void SVMenuNode::BuildMenu(ScrollView *sv, bool menu_bar) {
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121 if ((parent_ != nullptr) && (menu_bar)) {
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122 if (is_check_box_entry_) {
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123 sv->MenuItem(parent_->text_.c_str(), text_.c_str(), cmd_event_, toggle_value_);
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124 } else {
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125 sv->MenuItem(parent_->text_.c_str(), text_.c_str(), cmd_event_);
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126 }
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127 } else if ((parent_ != nullptr) && (!menu_bar)) {
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128 if (description_.length() > 0) {
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129 sv->PopupItem(parent_->text_.c_str(), text_.c_str(), cmd_event_, value_.c_str(),
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130 description_.c_str());
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131 } else {
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132 sv->PopupItem(parent_->text_.c_str(), text_.c_str());
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133 }
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134 }
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135 if (child_ != nullptr) {
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136 child_->BuildMenu(sv, menu_bar);
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137 delete child_;
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138 }
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139 if (next_ != nullptr) {
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140 next_->BuildMenu(sv, menu_bar);
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141 delete next_;
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142 }
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143 }
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144
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145 } // namespace tesseract
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146
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147 #endif // !GRAPHICS_DISABLED