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annotate anagram/guisupport/dc.cpp @ 4:bebb2ba69e1d

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author David A. Holland
date Sat, 18 Apr 2020 17:12:17 -0400
parents 13d2b8934445
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1993-2002 Parsifal Software. All Rights Reserved.
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4 * See the file COPYING for license and usage terms.
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5 *
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6 * dc.cpp - display contexts
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7 */
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8
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9 #include "assert.h"
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10 #include "dc.h"
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11 #include "myalloc.h"
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12 #include "stacks.h"
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13 #include "wdata.h"
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14 #include "wm1.h"
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15
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16 //#define INCLUDE_LOGGING
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17 #include "log.h"
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18
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19
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20 static int dcsCreated = 0;
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21 static int dcsDestroyed = 0;
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22
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23
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24 ////////////////////////////////////////////////////////////
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25 //
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26 // dc methods
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27
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28 void dc::init_dc(void) {
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29 LOGSECTION("dc::init");
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30 LOGV((int) this) LCV(head_title) LCV(foot_title);
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31 id = this;
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32 clear_data();
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33 des = ZALLOCATE(1, wd);
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34
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35 tab_stops = NULL;
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36 syntax_dependent = 1;
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37 dcsCreated++;
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38 }
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39
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40 void dc::clear_data(void) {
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41 LOGSECTION("dc::clear_data");
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42 usage_count = 0;
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43 tab_stops = NULL;
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44 syntax_dependent = 1;
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45 }
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46
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47 dc::dc(void)
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48 : head_title()
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49 , foot_title()
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50 , windowConnector(0)
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51 {
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52 init_dc();
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53 }
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54
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55 dc::dc(const AgString head)
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56 : head_title(head)
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57 , foot_title()
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58 , windowConnector(0)
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59 {
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60 init_dc();
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61 }
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62
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63 dc::dc(const AgString head, const AgString foot)
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64 : head_title(head)
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65 , foot_title(foot)
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66 , windowConnector(0)
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67 {
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68 init_dc();
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69 }
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70
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71 dc::dc(dc &x)
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72 : head_title(x.head_title)
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73 , foot_title(x.foot_title)
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74 , windowConnector(0)
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75 {
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76 id = this;
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77 des = ZALLOCATE(1,wd);
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78 *des = *x.des;
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79 syntax_dependent = x.syntax_dependent;
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80 tab_stops = x.tab_stops;
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81 columnHeadTitle = x.columnHeadTitle;
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82 usage_count = 0;
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83 dcsCreated++;
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84 }
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85
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86 dc::~dc(void) {
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87 LOGSECTION("dc::~dc");
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88 LOGV(head_title) LCV(foot_title);
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89 assert(this == id && usage_count == 0);
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90 ok_ptr(this);
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91 ok_ptr(des);
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92 //if (windowConnector) delete windowConnector;
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93 DEALLOCATE(des);
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94 dcsDestroyed++;
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95 }
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96
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97 AgString dc::findHelpTopic() { return AgString(); }
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98
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99 #define CURSOR windowConnector->getCursorLine()
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100
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101 void dc::anomaly_trace() { pop_up_window(anomaly_trace (CURSOR)); }
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102 void dc::aux_trace() { pop_up_window(aux_trace (CURSOR)); }
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103 void dc::derive_rule() { pop_up_window(derive_rule (CURSOR)); }
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104 void dc::derive_token() { pop_up_window(derive_token (CURSOR)); }
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105 void dc::expansion_chain() { pop_up_window(expansion_chain (CURSOR)); }
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106 void dc::expansion_rules() { pop_up_window(expansion_rules (CURSOR)); }
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107 void dc::keywords() { pop_up_window(keywords (CURSOR)); }
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108 void dc::partition_sets() { pop_up_window(partition_sets (CURSOR)); }
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109 void dc::previous_states() { pop_up_window(previous_states (CURSOR)); }
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110 void dc::problem_states() { pop_up_window(problem_states (CURSOR)); }
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111 void dc::productions() { pop_up_window(productions (CURSOR)); }
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112
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113 void dc::reduction_states() { pop_up_window(reduction_states(CURSOR)); }
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114 void dc::reduction_trace() { pop_up_window(reduction_trace (CURSOR)); }
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115 void dc::rule_context() { pop_up_window(rule_context (CURSOR)); }
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116 //void dc::rule_stack() { pop_up_window(rule_stack (CURSOR)); }
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117 void dc::select_conflict() { pop_up_window(select_conflict (CURSOR)); }
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118 void dc::set_elements() { pop_up_window(set_elements (CURSOR)); }
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119 void dc::state_definition() { pop_up_window(state_definition(CURSOR)); }
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120 void dc::state_expansion() { pop_up_window(state_expansion (CURSOR)); }
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121 void dc::usage() { pop_up_window(usage (CURSOR)); }
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122
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123 int dc::derive_rule_ok() { return derive_rule_ok (CURSOR); }
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124 int dc::expansion_chain_ok() { return expansion_chain_ok (CURSOR); }
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125
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126 int dc::expansion_rules_ok() { return expansion_rules_ok (CURSOR); }
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127
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128 int dc::keywords_ok() { return keywords_ok (CURSOR); }
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129 int dc::previous_states_ok() { return previous_states_ok (CURSOR); }
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130 int dc::productions_ok() { return productions_ok (CURSOR); }
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131 int dc::reduction_states_ok() { return reduction_states_ok (CURSOR); }
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132 int dc::rule_context_ok() { return rule_context_ok (CURSOR); }
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133 int dc::set_elements_ok() { return set_elements_ok (CURSOR); }
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134 int dc::state_expansion_ok() { return state_expansion_ok (CURSOR); }
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135 int dc::usage_ok() { return usage_ok (CURSOR); }
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136
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137 #undef CURSOR
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138
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139 void dc::getLine(unsigned ln) const {
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140 LOGSECTION("dc::getLine");
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141 LOGV(ln);
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142 assert(ln < (unsigned) des->d_size.y);
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143 ics();
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144 }
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145
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146 ////////////////////////////////////////////////////////////
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147 //
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148 // dc_ref methods
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149
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150 dc::ref::ref() : window(0) {}
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151
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152 dc::ref::ref(dc *x) {
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153 LOGSECTION("dc::ref::ref");
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154 window = x;
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155 if (window) {
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156 ok_ptr(window);
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157 window->usage_count++;
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158 LOGV((int) window) LCV(window->usage_count);
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159 }
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160 }
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161
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162 dc::ref::ref(const ref &x) {
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163 window = x.window;
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164 if (window) {
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165 ok_ptr(window);
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166 window->usage_count++;
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167 }
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168 }
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169
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170 dc::ref &dc::ref::operator =(const ref &x) {
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171 if (window == x.window) {
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172 return *this;
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173 }
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174 if (window) {
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175 ok_ptr(window);
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176 if (window->usage_count && --window->usage_count == 0) {
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177 delete window;
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178 }
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179 }
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180 window = x.window;
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181 if (window) {
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182 ok_ptr(window);
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183 window->usage_count++;
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184 }
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185 return *this;
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186 }
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187
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188 dc::ref &dc::ref::operator =(dc *x) {
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189 if (window == x) {
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190 return *this;
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191 }
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192 if (window) {
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193 ok_ptr(window);
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194 LOGV((int) window) LCV(window->usage_count);
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195 if (window->usage_count && --window->usage_count == 0) {
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196 delete window;
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197 }
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198 }
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199 window = x;
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200 if (window) {
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201 ok_ptr(window);
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202 LOGV(window->usage_count);
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203 window->usage_count++;
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204 }
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205 return *this;
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206 }
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207
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208 dc::ref::~ref(void) {
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209 LOGSECTION("dc::ref::~ref");
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210 if (window) {
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211 ok_ptr(window);
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212 LOGV((int) window) LCV(window->usage_count);
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213 if (window->usage_count && --window->usage_count == 0) {
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214 delete window;
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215 }
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216 }
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217 }
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218
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219 void dc::ref::discardData(void) {
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220 dc *alias = window;
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221 window = 0;
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222 if (alias) {
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223 ok_ptr(alias);
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224 LOGV((int) alias) LCV(alias->usage_count);
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225 if (alias->usage_count && --alias->usage_count == 0) {
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226 delete alias;
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227 }
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228 }
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229 }
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230
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231 dc::ref::operator dc *(void) const {
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232 if (window) {
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233 ok_ptr(window);
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234 }
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235 return window;
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236 }
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237
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238 dc *dc::ref::operator ->(void) const {
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239 ok_ptr(window);
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240 return window;
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241 }