ui/common/types.c

Thu, 10 Dec 2020 13:43:25 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 10 Dec 2020 13:43:25 +0100
changeset 2
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2017 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32 #include <stdarg.h>
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33
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34 #include <ucx/list.h>
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35 #include "../ui/tree.h"
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36 #include "types.h"
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37 #include "context.h"
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38
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39 UiObserver* ui_observer_new(ui_callback f, void *data) {
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40 UiObserver *observer = malloc(sizeof(UiObserver));
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41 observer->callback = f;
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42 observer->data = data;
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43 observer->next = NULL;
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44 return observer;
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45 }
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46
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47 UiObserver* ui_obsvlist_add(UiObserver *list, UiObserver *observer) {
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48 if(!list) {
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49 return observer;
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50 } else {
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51 UiObserver *l = list;
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52 while(l->next) {
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53 l = l->next;
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54 }
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55 l->next = observer;
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56 return list;
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57 }
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58 }
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59
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60 UiObserver* ui_add_observer(UiObserver *list, ui_callback f, void *data) {
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61 UiObserver *observer = ui_observer_new(f, data);
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62 return ui_obsvlist_add(list, observer);
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63 }
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64
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65 void ui_notify(UiObserver *observer, void *data) {
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66 ui_notify_except(observer, NULL, data);
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67 }
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68
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69 void ui_notify_except(UiObserver *observer, UiObserver *exc, void *data) {
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70 UiEvent evt;
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71 evt.obj = NULL;
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72 evt.window = NULL;
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73 evt.document = NULL;
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74 evt.eventdata = data;
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75 evt.intval = 0;
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76
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77 while(observer) {
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78 if(observer != exc) {
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79 observer->callback(&evt, observer->data);
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80 }
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81 observer = observer->next;
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82 }
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83 }
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84
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85 void ui_notify_evt(UiObserver *observer, UiEvent *event) {
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86 while(observer) {
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87 observer->callback(event, observer->data);
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88 observer = observer->next;
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89 }
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90 }
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91
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92 /* --------------------------- UiList --------------------------- */
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93
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94 UiList* ui_list_new(UiContext *ctx, char *name) {
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95 UiList *list = malloc(sizeof(UiList));
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96 list->first = ui_list_first;
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97 list->next = ui_list_next;
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98 list->get = ui_list_get;
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99 list->count = ui_list_count;
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100 list->observers = NULL;
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101
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102 list->data = NULL;
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103 list->iter = NULL;
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104
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105 list->update = NULL;
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106 list->obj = NULL;
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107
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108 if(name) {
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109 uic_reg_var(ctx, name, UI_VAR_LIST, list);
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110 }
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111
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112 return list;
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113 }
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114
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115 void ui_list_free(UiList *list) {
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116 ucx_list_free(list->data);
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117 free(list);
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118 }
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119
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120 void* ui_list_first(UiList *list) {
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121 UcxList *elm = list->data;
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122 list->iter = elm;
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123 return elm ? elm->data : NULL;
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124 }
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125
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126 void* ui_list_next(UiList *list) {
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127 UcxList *elm = list->iter;
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128 if(elm) {
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129 elm = elm->next;
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130 if(elm) {
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131 list->iter = elm;
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132 return elm->data;
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133 }
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134 }
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135 return NULL;
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136 }
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137
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138 void* ui_list_get(UiList *list, int i) {
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139 UcxList *elm = ucx_list_get(list->data, i);
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140 if(elm) {
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141 list->iter = elm;
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142 return elm->data;
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143 } else {
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144 return NULL;
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145 }
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146 }
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147
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148 int ui_list_count(UiList *list) {
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149 UcxList *elm = list->data;
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150 return (int)ucx_list_size(elm);
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151 }
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152
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153 void ui_list_append(UiList *list, void *data) {
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154 list->data = ucx_list_append(list->data, data);
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155 }
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156
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157 void ui_list_prepend(UiList *list, void *data) {
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158 list->data = ucx_list_prepend(list->data, data);
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159 }
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160
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161 void ui_list_clear(UiList *list) {
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162 ucx_list_free(list->data);
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163 list->data = NULL;
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164 }
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165
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166 void ui_list_addobsv(UiList *list, ui_callback f, void *data) {
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167 list->observers = ui_add_observer(list->observers, f, data);
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168 }
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169
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170 void ui_list_notify(UiList *list) {
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171 ui_notify(list->observers, list);
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172 }
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173
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174
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175 typedef struct {
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176 int type;
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177 char *name;
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178 } UiColumn;
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179
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180 UiModel* ui_model(UiContext *ctx, ...) {
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181 UiModel *info = ui_calloc(ctx, 1, sizeof(UiModel));
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182
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183 va_list ap;
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184 va_start(ap, ctx);
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185
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186 UcxList *cols = NULL;
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187 int type;
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188 while((type = va_arg(ap, int)) != -1) {
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189 char *name = va_arg(ap, char*);
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190
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191 UiColumn *column = malloc(sizeof(UiColumn));
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192 column->type = type;
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193 column->name = name;
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194
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195 cols = ucx_list_append(cols, column);
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196 }
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197
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198 va_end(ap);
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199
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200 size_t len = ucx_list_size(cols);
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201 info->columns = len;
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202 info->types = ui_calloc(ctx, len, sizeof(UiModelType));
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203 info->titles = ui_calloc(ctx, len, sizeof(char*));
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204
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205 int i = 0;
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206 UCX_FOREACH(elm, cols) {
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207 UiColumn *c = elm->data;
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208 info->types[i] = c->type;
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209 info->titles[i] = c->name;
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210 free(c);
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211 i++;
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212 }
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213 ucx_list_free(cols);
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214
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215 return info;
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216 }
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217
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218 void ui_model_free(UiContext *ctx, UiModel *mi) {
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219 ucx_mempool_free(ctx->mempool, mi->types);
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220 ucx_mempool_free(ctx->mempool, mi->titles);
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221 ucx_mempool_free(ctx->mempool, mi);
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222 }
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223
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224 // types
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225
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226 // public functions
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227 UiInteger* ui_int_new(UiContext *ctx, char *name) {
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228 UiInteger *i = ui_malloc(ctx, sizeof(UiInteger));
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229 memset(i, 0, sizeof(UiInteger));
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230 if(name) {
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231 uic_reg_var(ctx, name, UI_VAR_INTEGER, i);
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232 }
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233 return i;
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234 }
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235
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236 UiDouble* ui_double_new(UiContext *ctx, char *name) {
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237 UiDouble *d = ui_malloc(ctx, sizeof(UiDouble));
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238 memset(d, 0, sizeof(UiDouble));
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239 if(name) {
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240 uic_reg_var(ctx, name, UI_VAR_DOUBLE, d);
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241 }
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242 return d;
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243 }
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244
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245 UiString* ui_string_new(UiContext *ctx, char *name) {
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246 UiString *s = ui_malloc(ctx, sizeof(UiString));
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247 memset(s, 0, sizeof(UiString));
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248 if(name) {
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249 uic_reg_var(ctx, name, UI_VAR_STRING, s);
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250 }
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251 return s;
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252 }
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253
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254 UiText* ui_text_new(UiContext *ctx, char *name) {
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255 UiText *t = ui_malloc(ctx, sizeof(UiText));
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256 memset(t, 0, sizeof(UiText));
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257 if(name) {
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258 uic_reg_var(ctx, name, UI_VAR_TEXT, t);
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259 }
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260 return t;
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261 }
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262
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263 UiRange* ui_range_new(UiContext *ctx, char *name) {
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264 UiRange *r = ui_malloc(ctx, sizeof(UiRange));
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265 memset(r, 0, sizeof(UiRange));
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266 if(name) {
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267 uic_reg_var(ctx, name, UI_VAR_RANGE, r);
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268 }
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269 return r;
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270 }
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271
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272
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273 // private functions
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274 void uic_int_copy(UiInteger *from, UiInteger *to) {
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275 to->get = from->get;
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276 to->set = from->set;
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277 to->obj = from->obj;
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278 }
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279
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280 void uic_double_copy(UiDouble *from, UiDouble *to) {
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281 to->get = from->get;
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282 to->set = from->set;
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283 to->obj = from->obj;
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284 }
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285
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286 void uic_string_copy(UiString *from, UiString *to) {
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287 to->get = from->get;
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288 to->set = from->set;
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289 to->obj = from->obj;
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290 }
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291
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292 void uic_text_copy(UiText *from, UiText *to) {
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293 to->get = from->get;
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294 to->set = from->set;
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295 to->getsubstr = from->getsubstr;
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296 to->insert = from->insert;
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297 to->setposition = from->setposition;
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298 to->position = from->position;
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299 to->selection = from->selection;
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300 to->length = from->length;
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301 to->remove = from->remove;
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302
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303 to->obj = from->obj;
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304 // do not copy the undo manager
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305 }
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306
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307 void uic_range_copy(UiRange *from, UiRange *to) {
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308 to->get = from->get;
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309 to->set = from->set;
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310 to->setrange = from->setrange;
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311 to->setextent = from->setextent;
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312 to->obj = from->obj;
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313 }
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314
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315 void uic_list_copy(UiList *from, UiList *to) {
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316 to->update = from->update;
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317 to->obj = from->obj;
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318 }
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319
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320
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321 void uic_int_save(UiInteger *i) {
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322 if(!i->obj) return;
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323 i->value = i->get(i);
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324 }
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325
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326 void uic_double_save(UiDouble *d) {
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327 if(!d->obj) return;
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328 d->value = d->get(d);
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329 }
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330
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331 void uic_string_save(UiString *s) {
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332 if(!s->obj) return;
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333 s->get(s);
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334 }
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335
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336 void uic_text_save(UiText *t) {
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337 if(!t->obj) return;
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338 t->get(t);
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339 t->position(t);
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340 }
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341
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342 void uic_range_save(UiRange *r) {
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343 if(!r->obj) return;
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344 r->get(r);
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345 }
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346
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347
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348 void uic_int_unbind(UiInteger *i) {
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349 i->get = NULL;
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350 i->set = NULL;
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351 i->obj = NULL;
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352 }
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353
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354 void uic_double_unbind(UiDouble *d) {
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355 d->get = NULL;
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356 d->set = NULL;
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357 d->obj = NULL;
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358 }
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359
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360 void uic_string_unbind(UiString *s) {
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361 s->get = NULL;
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362 s->set = NULL;
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363 s->obj = NULL;
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364 }
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365
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366 void uic_text_unbind(UiText *t) {
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367 t->set = NULL;
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368 t->get = NULL;
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369 t->getsubstr = NULL;
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370 t->insert = NULL;
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371 t->setposition = NULL;
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372 t->position = NULL;
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373 t->selection = NULL;
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374 t->length = NULL;
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375 t->remove = NULL;
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376 t->obj = NULL;
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377 t->undomgr = NULL;
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378 }
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379
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380 void uic_range_unbind(UiRange *r) {
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381 r->get = NULL;
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382 r->set = NULL;
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383 r->setextent = NULL;
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384 r->setrange = NULL;
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385 r->obj = NULL;
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386 }
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387
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388 void uic_list_unbind(UiList *l) {
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389 l->update = NULL;
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390 l->obj = NULL;
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391 }

mercurial