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0
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1 /* A general interface to the widgets of different toolkits.
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2 Copyright (C) 1992, 1993, 1994 Lucid, Inc.
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3 Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
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4
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5 This file is part of the Lucid Widget Library.
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6
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7 The Lucid Widget Library is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 The Lucid Widget Library is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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80
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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0
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21
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22 #ifdef NeXT
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23 #undef __STRICT_BSD__ /* ick */
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24 #endif
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25
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149
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26 #include <config.h>
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0
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27 #include <stdlib.h>
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28 #include <unistd.h>
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29 #include <sys/types.h>
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30 #include <string.h>
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31 #include <stdio.h>
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32 #include <X11/StringDefs.h>
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33 #include "lwlib-internal.h"
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34 #include "lwlib-utils.h"
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35
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36 #ifdef NEED_LUCID
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37 #include "lwlib-Xlw.h"
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38 #endif
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39 #ifdef NEED_MOTIF
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40 #include "lwlib-Xm.h"
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41 #endif
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42 #ifdef NEED_ATHENA
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43 #include "lwlib-Xaw.h"
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44 #endif
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45
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46 /* #### Does a check need to be put back in here to make sure we have
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47 sufficient defines to function properly or are the checks in the
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48 makefile sufficient? */
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49
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50 /* List of all widgets managed by the library. Note that each "widget"
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51 listed here may actually be a tree of widgets; for example, a
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52 single entry here might represent a single menubar or popup menu,
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53 each of which might be implemented with a tree of widgets.
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54 */
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55 static widget_info *all_widget_info = NULL;
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56
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57
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58 /* Forward declarations */
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59 static void
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60 instantiate_widget_instance (widget_instance *instance);
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61
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62
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63 /* utility functions for widget_instance and widget_info */
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64 static char *
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65 safe_strdup (CONST char *s)
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66 {
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67 char *result;
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68 if (! s) return 0;
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69 result = (char *) malloc (strlen (s) + 1);
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70 if (! result)
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71 return 0;
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72 strcpy (result, s);
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73 return result;
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74 }
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75
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76 static void
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77 safe_free_str (char *s)
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78 {
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79 if (s) free (s);
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80 }
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81
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82 static widget_value *widget_value_free_list = 0;
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83
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84 widget_value *
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85 malloc_widget_value (void)
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86 {
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87 widget_value *wv;
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88 if (widget_value_free_list)
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89 {
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90 wv = widget_value_free_list;
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91 widget_value_free_list = wv->free_list;
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92 wv->free_list = 0;
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93 }
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94 else
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95 {
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96 wv = (widget_value *) malloc (sizeof (widget_value));
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97 }
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98 if (wv)
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99 {
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100 memset (wv, 0, sizeof (widget_value));
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101 }
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102 return wv;
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103 }
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104
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105 /* this is analogous to free(). It frees only what was allocated
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106 by malloc_widget_value(), and no substructures.
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107 */
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108 void
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109 free_widget_value (widget_value *wv)
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110 {
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111 if (wv->free_list)
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112 abort ();
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113 wv->free_list = widget_value_free_list;
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114 widget_value_free_list = wv;
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115 }
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116
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117 static void free_widget_value_tree (widget_value *wv);
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118
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119 static void
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120 free_widget_value_contents (widget_value *wv)
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121 {
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122 if (wv->name) free (wv->name);
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123 if (wv->value) free (wv->value);
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124 if (wv->key) free (wv->key);
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125
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126 /* #### - all of this 0xDEADBEEF stuff should be unnecessary
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127 in production code... it should be conditionalized. */
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128 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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129
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130 if (wv->toolkit_data && wv->free_toolkit_data)
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131 {
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132 free (wv->toolkit_data);
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133 wv->toolkit_data = (void *) 0xDEADBEEF;
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134 }
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135 #ifdef NEED_SCROLLBARS
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136 if (wv->scrollbar_data)
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137 {
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138 free (wv->scrollbar_data);
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139 wv->scrollbar_data = NULL;
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140 }
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141 #endif
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142 if (wv->contents && (wv->contents != (widget_value*)1))
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143 {
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144 free_widget_value_tree (wv->contents);
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145 wv->contents = (widget_value *) 0xDEADBEEF;
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146 }
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147 if (wv->next)
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148 {
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149 free_widget_value_tree (wv->next);
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150 wv->next = (widget_value *) 0xDEADBEEF;
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151 }
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152 }
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153
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154 static void
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155 free_widget_value_tree (widget_value *wv)
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156 {
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157 if (!wv)
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158 return;
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159
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160 free_widget_value_contents (wv);
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161 free_widget_value (wv);
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162 }
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163
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164 #ifdef NEED_SCROLLBARS
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165
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166 static void
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167 copy_scrollbar_values (widget_value *val, widget_value *copy)
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168 {
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169 if (!copy->scrollbar_data)
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170 copy->scrollbar_data =
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171 (scrollbar_values *) malloc (sizeof (scrollbar_values));
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172
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173 if (val->scrollbar_data)
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174 *copy->scrollbar_data = *val->scrollbar_data;
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175 else
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176 memset (copy->scrollbar_data, 0, sizeof (scrollbar_values));
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177 }
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178
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179 /*
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180 * Return true if old->scrollbar_data were not equivalent
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181 * to new->scrollbar_data.
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182 */
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183 static Boolean
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184 merge_scrollbar_values (widget_value *old, widget_value *new)
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185 {
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186 Boolean changed = False;
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187
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188 if (new->scrollbar_data && !old->scrollbar_data)
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189 {
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190 copy_scrollbar_values (new, old);
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191 changed = True;
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192 }
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193 else if (!new->scrollbar_data && old->scrollbar_data)
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194 {
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195 free (old->scrollbar_data);
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196 old->scrollbar_data = NULL;
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197 }
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198 else if (new->scrollbar_data && old->scrollbar_data)
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199 {
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200 scrollbar_values *old_sb = old->scrollbar_data;
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201 scrollbar_values *new_sb = new->scrollbar_data;
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202 #define FROB(field) if (old_sb->field != new_sb->field) changed = True
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203 FROB (line_increment);
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204 FROB (page_increment);
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205 FROB (minimum);
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206 FROB (maximum);
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207 FROB (slider_size);
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208 FROB (slider_position);
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209 FROB (scrollbar_width);
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210 FROB (scrollbar_height);
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211 FROB (scrollbar_x);
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212 FROB (scrollbar_y);
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213 #undef FROB
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214 *old_sb = *new_sb;
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215 }
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216
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217 return changed;
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218 }
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219
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220 #endif /* NEED_SCROLLBARS */
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221
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222 /* Make a complete copy of a widget_value tree. Store CHANGE into
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223 the widget_value tree's `change' field. */
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224
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225 static widget_value *
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226 copy_widget_value_tree (widget_value *val, change_type change)
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227 {
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228 widget_value *copy;
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229
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230 if (!val)
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231 return NULL;
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232 if (val == (widget_value *) 1)
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233 return val;
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234
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235 copy = malloc_widget_value ();
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236 if (copy)
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237 {
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238 /* #### - don't seg fault *here* if out of memory. Menus will be
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239 truncated inexplicably. */
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240 copy->type = val->type;
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241 copy->name = safe_strdup (val->name);
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242 copy->value = safe_strdup (val->value);
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243 copy->key = safe_strdup (val->key);
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244 copy->enabled = val->enabled;
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245 copy->selected = val->selected;
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246 copy->edited = False;
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247 copy->change = change;
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248 copy->contents = copy_widget_value_tree (val->contents, change);
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249 copy->call_data = val->call_data;
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250 copy->next = copy_widget_value_tree (val->next, change);
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251 copy->toolkit_data = NULL;
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252 copy->free_toolkit_data = False;
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253 #ifdef NEED_SCROLLBARS
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254 copy_scrollbar_values (val, copy);
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255 #endif
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256 }
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257 return copy;
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258 }
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259
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260 /* This function is used to implement incremental menu construction. */
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261
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262 widget_value *
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263 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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264 {
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265 widget_value *copy;
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266
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267 if (!node || !newtree)
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268 abort ();
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269
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270 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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271
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272 free_widget_value_contents (node);
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273 *node = *copy;
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274 free_widget_value (copy); /* free the node, but not its contents. */
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275 return node;
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276 }
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277
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278 static widget_info *
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279 allocate_widget_info (CONST char *type, CONST char *name,
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280 LWLIB_ID id, widget_value *val,
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281 lw_callback pre_activate_cb, lw_callback selection_cb,
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282 lw_callback post_activate_cb)
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283 {
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284 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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285 info->type = safe_strdup (type);
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286 info->name = safe_strdup (name);
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287 info->id = id;
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288 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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289 info->busy = False;
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290 info->pre_activate_cb = pre_activate_cb;
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291 info->selection_cb = selection_cb;
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292 info->post_activate_cb = post_activate_cb;
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293 info->instances = NULL;
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294
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295 info->next = all_widget_info;
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296 all_widget_info = info;
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297
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298 return info;
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299 }
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300
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301 static void
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302 free_widget_info (widget_info *info)
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303 {
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304 safe_free_str (info->type);
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305 safe_free_str (info->name);
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306 free_widget_value_tree (info->val);
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307 memset ((void*)info, 0xDEADBEEF, sizeof (widget_info));
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308 free (info);
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309 }
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310
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311 static void
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312 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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313 {
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314 widget_instance *instance = (widget_instance*)closure;
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315
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316 /* be very conservative */
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317 if (instance->widget == widget)
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318 instance->widget = NULL;
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319 }
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320
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321 static widget_instance *
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322 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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323 {
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324 widget_instance *instance =
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325 (widget_instance *) malloc (sizeof (widget_instance));
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326 instance->parent = parent;
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327 instance->pop_up_p = pop_up_p;
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328 instance->info = info;
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329 instance->next = info->instances;
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330 info->instances = instance;
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331
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332 instantiate_widget_instance (instance);
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333
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334 XtAddCallback (instance->widget, XtNdestroyCallback,
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335 mark_widget_destroyed, (XtPointer)instance);
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336 return instance;
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337 }
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338
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339 static void
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340 free_widget_instance (widget_instance *instance)
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341 {
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342 memset ((void *) instance, 0xDEADBEEF, sizeof (widget_instance));
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343 free (instance);
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344 }
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345
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346 static widget_info *
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347 get_widget_info (LWLIB_ID id, Boolean remove_p)
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348 {
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349 widget_info *info;
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350 widget_info *prev;
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351 for (prev = NULL, info = all_widget_info;
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352 info;
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353 prev = info, info = info->next)
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354 if (info->id == id)
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355 {
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356 if (remove_p)
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357 {
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358 if (prev)
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359 prev->next = info->next;
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360 else
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361 all_widget_info = info->next;
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362 }
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363 return info;
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364 }
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365 return NULL;
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366 }
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367
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368 /* Internal function used by the library dependent implementation to get the
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369 widget_value for a given widget in an instance */
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370 widget_info *
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371 lw_get_widget_info (LWLIB_ID id)
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372 {
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373 return get_widget_info (id, 0);
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374 }
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375
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376 static int
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377 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
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378 void *closure),
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379 void *closure)
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380 {
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381 int retval = 0;
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382
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383 if (value->contents)
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384 retval = map_widget_values (value->contents, mapfunc, closure);
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385 if (retval)
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386 return retval;
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387
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388 if (value->next)
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389 retval = map_widget_values (value->next, mapfunc, closure);
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390 if (retval)
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391 return retval;
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392
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393 return (mapfunc) (value, closure);
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394 }
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395
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396 int
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397 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
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398 void *closure),
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399 void *closure)
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400 {
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401 widget_info *info = get_widget_info (id, 0);
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402
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403 if (!info)
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404 abort ();
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405
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406 if (info->val)
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407 return map_widget_values (info->val, mapfunc, closure);
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408 return 0;
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409 }
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410
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411 static widget_instance *
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412 get_widget_instance (Widget widget, Boolean remove_p)
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413 {
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414 widget_info *info;
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415 widget_instance *instance;
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416 widget_instance *prev;
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417 for (info = all_widget_info; info; info = info->next)
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418 for (prev = NULL, instance = info->instances;
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419 instance;
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420 prev = instance, instance = instance->next)
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421 if (instance->widget == widget)
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422 {
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423 if (remove_p)
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424 {
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425 if (prev)
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426 prev->next = instance->next;
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427 else
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428 info->instances = instance->next;
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429 }
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430 return instance;
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431 }
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432 return (widget_instance *) 0;
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433 }
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|
|
434
|
|
|
435 static widget_instance*
|
|
|
436 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
437 {
|
|
|
438 widget_info *info = get_widget_info (id, False);
|
|
|
439 widget_instance *instance;
|
|
|
440
|
|
|
441 if (info)
|
|
|
442 for (instance = info->instances; instance; instance = instance->next)
|
|
|
443 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
444 return instance;
|
|
|
445
|
|
|
446 return NULL;
|
|
|
447 }
|
|
|
448
|
|
|
449
|
|
|
450 /* utility function for widget_value */
|
|
|
451 static Boolean
|
|
|
452 safe_strcmp (CONST char *s1, CONST char *s2)
|
|
|
453 {
|
|
|
454 if (!!s1 ^ !!s2) return True;
|
|
|
455 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
456 }
|
|
|
457
|
|
118
|
458 #ifndef WINDOWSNT
|
|
2
|
459 static change_type
|
|
|
460 max (change_type i1, change_type i2)
|
|
0
|
461 {
|
|
2
|
462 return (int)i1 > (int)i2 ? i1 : i2;
|
|
0
|
463 }
|
|
118
|
464 #endif
|
|
0
|
465
|
|
|
466
|
|
|
467 #if 0
|
|
|
468 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
469 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
470 name, \
|
|
|
471 (oc == NO_CHANGE ? "none" : \
|
|
|
472 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
473 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
474 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
475 oc, \
|
|
|
476 (nc == NO_CHANGE ? "none" : \
|
|
|
477 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
478 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
479 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
480 nc, desc, a1, a2)
|
|
|
481 #else
|
|
|
482 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
483 #endif
|
|
|
484
|
|
|
485
|
|
|
486 static widget_value *
|
|
|
487 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
488 {
|
|
|
489 change_type change;
|
|
|
490 widget_value *merged_next;
|
|
|
491 widget_value *merged_contents;
|
|
|
492
|
|
|
493 if (!val1)
|
|
|
494 {
|
|
|
495 if (val2)
|
|
|
496 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
497 else
|
|
|
498 return NULL;
|
|
|
499 }
|
|
|
500 if (!val2)
|
|
|
501 {
|
|
|
502 free_widget_value_tree (val1);
|
|
|
503 return NULL;
|
|
|
504 }
|
|
|
505
|
|
|
506 change = NO_CHANGE;
|
|
|
507
|
|
|
508 if (val1->type != val2->type)
|
|
|
509 {
|
|
|
510 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
511 val1->type, val2->type);
|
|
|
512 change = max (change, STRUCTURAL_CHANGE);
|
|
|
513 val1->type = val2->type;
|
|
|
514 }
|
|
|
515 if (safe_strcmp (val1->name, val2->name))
|
|
|
516 {
|
|
|
517 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
518 val1->name, val2->name);
|
|
|
519 change = max (change, STRUCTURAL_CHANGE);
|
|
|
520 safe_free_str (val1->name);
|
|
|
521 val1->name = safe_strdup (val2->name);
|
|
|
522 }
|
|
|
523 if (safe_strcmp (val1->value, val2->value))
|
|
|
524 {
|
|
|
525 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
526 val1->value, val2->value);
|
|
|
527 change = max (change, VISIBLE_CHANGE);
|
|
|
528 safe_free_str (val1->value);
|
|
|
529 val1->value = safe_strdup (val2->value);
|
|
|
530 }
|
|
|
531 if (safe_strcmp (val1->key, val2->key))
|
|
|
532 {
|
|
|
533 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
534 val1->key, val2->key);
|
|
|
535 change = max (change, VISIBLE_CHANGE);
|
|
|
536 safe_free_str (val1->key);
|
|
|
537 val1->key = safe_strdup (val2->key);
|
|
|
538 }
|
|
|
539 if (val1->enabled != val2->enabled)
|
|
|
540 {
|
|
|
541 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
542 val1->enabled, val2->enabled);
|
|
|
543 change = max (change, VISIBLE_CHANGE);
|
|
|
544 val1->enabled = val2->enabled;
|
|
|
545 }
|
|
|
546 if (val1->selected != val2->selected)
|
|
|
547 {
|
|
|
548 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
549 val1->selected, val2->selected);
|
|
|
550 change = max (change, VISIBLE_CHANGE);
|
|
|
551 val1->selected = val2->selected;
|
|
|
552 }
|
|
|
553 if (val1->call_data != val2->call_data)
|
|
|
554 {
|
|
|
555 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
556 val1->call_data, val2->call_data);
|
|
|
557 change = max (change, INVISIBLE_CHANGE);
|
|
|
558 val1->call_data = val2->call_data;
|
|
|
559 }
|
|
|
560 #ifdef NEED_SCROLLBARS
|
|
|
561 if (merge_scrollbar_values (val1, val2))
|
|
|
562 {
|
|
|
563 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
564 change = max (change, VISIBLE_CHANGE);
|
|
|
565 }
|
|
|
566 #endif
|
|
|
567
|
|
|
568 if (level > 0)
|
|
|
569 {
|
|
|
570 merged_contents =
|
|
|
571 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
572
|
|
|
573 if (val1->contents && !merged_contents)
|
|
|
574 {
|
|
|
575 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
576 0, 0);
|
|
|
577 change = max (change, INVISIBLE_CHANGE);
|
|
|
578 }
|
|
|
579 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
580 {
|
|
|
581 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
582 0, 0);
|
|
|
583 change = max (change, INVISIBLE_CHANGE);
|
|
|
584 }
|
|
|
585
|
|
|
586 val1->contents = merged_contents;
|
|
|
587 }
|
|
|
588
|
|
|
589 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
590
|
|
|
591 if (val1->next && !merged_next)
|
|
|
592 {
|
|
|
593 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
594 0, 0);
|
|
|
595 change = max (change, STRUCTURAL_CHANGE);
|
|
|
596 }
|
|
|
597 else if (merged_next)
|
|
|
598 {
|
|
|
599 if (merged_next->change)
|
|
|
600 {
|
|
|
601 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
602 0, 0);
|
|
|
603 }
|
|
|
604 change = max (change, merged_next->change);
|
|
|
605 }
|
|
|
606
|
|
|
607 val1->next = merged_next;
|
|
|
608
|
|
|
609 val1->change = change;
|
|
|
610
|
|
|
611 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
612 {
|
|
|
613 if (val1->free_toolkit_data)
|
|
|
614 free (val1->toolkit_data);
|
|
|
615 val1->toolkit_data = NULL;
|
|
|
616 }
|
|
|
617
|
|
|
618 return val1;
|
|
|
619 }
|
|
|
620
|
|
|
621
|
|
|
622 /* modifying the widgets */
|
|
|
623 static Widget
|
|
|
624 name_to_widget (widget_instance *instance, CONST char *name)
|
|
|
625 {
|
|
|
626 Widget widget = NULL;
|
|
|
627
|
|
|
628 if (!instance->widget)
|
|
|
629 return NULL;
|
|
|
630
|
|
|
631 if (!strcmp (XtName (instance->widget), name))
|
|
|
632 widget = instance->widget;
|
|
|
633 else
|
|
|
634 {
|
|
|
635 int length = strlen (name) + 2;
|
|
|
636 char *real_name = (char *) alloca (length);
|
|
|
637 real_name [0] = '*';
|
|
|
638 strcpy (real_name + 1, name);
|
|
|
639
|
|
|
640 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
641 }
|
|
|
642 return widget;
|
|
|
643 }
|
|
|
644
|
|
|
645 static void
|
|
|
646 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
647 {
|
|
|
648 Widget widget = name_to_widget (instance, val->name);
|
|
|
649
|
|
|
650 if (widget)
|
|
|
651 {
|
|
|
652 #ifdef NEED_LUCID
|
|
|
653 if (lw_lucid_widget_p (instance->widget))
|
|
|
654 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
655 #endif
|
|
|
656 #ifdef NEED_MOTIF
|
|
|
657 if (lw_motif_widget_p (instance->widget))
|
|
|
658 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
659 #endif
|
|
|
660 #ifdef NEED_ATHENA
|
|
|
661 if (lw_xaw_widget_p (instance->widget))
|
|
|
662 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
663 #endif
|
|
|
664 }
|
|
|
665 }
|
|
|
666
|
|
|
667 static void
|
|
|
668 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
669 {
|
|
|
670 widget_value *val;
|
|
|
671
|
|
|
672 if (!instance->widget)
|
|
|
673 /* the widget was destroyed */
|
|
|
674 return;
|
|
|
675
|
|
|
676 for (val = instance->info->val; val; val = val->next)
|
|
|
677 if (val->change != NO_CHANGE)
|
|
|
678 set_one_value (instance, val, deep_p);
|
|
|
679 }
|
|
|
680
|
|
|
681 static void
|
|
|
682 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
683 {
|
|
|
684 widget_instance *instance;
|
|
|
685 widget_value *val;
|
|
|
686
|
|
|
687 for (instance = info->instances; instance; instance = instance->next)
|
|
|
688 update_one_widget_instance (instance, deep_p);
|
|
|
689
|
|
|
690 for (val = info->val; val; val = val->next)
|
|
|
691 val->change = NO_CHANGE;
|
|
|
692 }
|
|
|
693
|
|
|
694 void
|
|
|
695 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
696 {
|
|
|
697 widget_info *info = get_widget_info (id, False);
|
|
|
698 widget_value *new_val;
|
|
|
699 widget_value *next_new_val;
|
|
|
700 widget_value *cur;
|
|
|
701 widget_value *prev;
|
|
|
702 widget_value *next;
|
|
|
703 int found;
|
|
|
704
|
|
|
705 if (!info)
|
|
|
706 return;
|
|
|
707
|
|
|
708 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
709 {
|
|
|
710 next_new_val = new_val->next;
|
|
|
711 new_val->next = NULL;
|
|
|
712 found = False;
|
|
|
713 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
714 if (!strcmp (cur->name, new_val->name))
|
|
|
715 {
|
|
|
716 found = True;
|
|
|
717 next = cur->next;
|
|
|
718 cur->next = NULL;
|
|
|
719 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
720 if (prev)
|
|
|
721 prev->next = cur ? cur : next;
|
|
|
722 else
|
|
|
723 info->val = cur ? cur : next;
|
|
|
724 if (cur)
|
|
|
725 cur->next = next;
|
|
|
726 break;
|
|
|
727 }
|
|
|
728 if (!found)
|
|
|
729 {
|
|
|
730 /* Could not find it, add it */
|
|
|
731 if (prev)
|
|
|
732 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
733 else
|
|
|
734 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
735 }
|
|
|
736 new_val->next = next_new_val;
|
|
|
737 }
|
|
|
738
|
|
|
739 update_all_widget_values (info, deep_p);
|
|
|
740 }
|
|
|
741
|
|
|
742
|
|
|
743 /* creating the widgets */
|
|
|
744
|
|
|
745 static void
|
|
|
746 initialize_widget_instance (widget_instance *instance)
|
|
|
747 {
|
|
|
748 widget_value *val;
|
|
|
749
|
|
|
750 for (val = instance->info->val; val; val = val->next)
|
|
|
751 val->change = STRUCTURAL_CHANGE;
|
|
|
752
|
|
|
753 update_one_widget_instance (instance, True);
|
|
|
754
|
|
|
755 for (val = instance->info->val; val; val = val->next)
|
|
|
756 val->change = NO_CHANGE;
|
|
|
757 }
|
|
|
758
|
|
|
759
|
|
|
760 static widget_creation_function
|
|
|
761 find_in_table (CONST char *type, widget_creation_entry *table)
|
|
|
762 {
|
|
|
763 widget_creation_entry *cur;
|
|
|
764 for (cur = table; cur->type; cur++)
|
|
|
765 if (!strcasecmp (type, cur->type))
|
|
|
766 return cur->function;
|
|
|
767 return NULL;
|
|
|
768 }
|
|
|
769
|
|
|
770 static Boolean
|
|
|
771 dialog_spec_p (CONST char *name)
|
|
|
772 {
|
|
|
773 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
774 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
775 if (!name)
|
|
|
776 return False;
|
|
|
777
|
|
|
778 switch (name [0])
|
|
|
779 {
|
|
|
780 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
781 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
782 if (name [1] >= '0' && name [1] <= '9')
|
|
|
783 {
|
|
|
784 if (name [2] != 'B' && name [2] != 'b')
|
|
|
785 return False;
|
|
|
786 if (!name [3])
|
|
|
787 return True;
|
|
|
788 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
789 return True;
|
|
|
790 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
791 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
792 return True;
|
|
|
793 return False;
|
|
|
794 }
|
|
|
795 else
|
|
|
796 return False;
|
|
|
797
|
|
|
798 default:
|
|
|
799 return False;
|
|
|
800 }
|
|
|
801 }
|
|
|
802
|
|
|
803 static void
|
|
|
804 instantiate_widget_instance (widget_instance *instance)
|
|
|
805 {
|
|
|
806 widget_creation_function function = NULL;
|
|
|
807
|
|
|
808 #ifdef NEED_LUCID
|
|
|
809 if (!function)
|
|
|
810 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
811 #endif
|
|
|
812 #ifdef NEED_MOTIF
|
|
|
813 if (!function)
|
|
|
814 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
815 #endif
|
|
|
816 #ifdef NEED_ATHENA
|
|
|
817 if (!function)
|
|
|
818 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
819 #endif
|
|
|
820
|
|
|
821 if (!function)
|
|
|
822 {
|
|
|
823 if (dialog_spec_p (instance->info->type))
|
|
|
824 {
|
|
|
825 #ifdef DIALOGS_MOTIF
|
|
|
826 if (!function)
|
|
|
827 function = xm_create_dialog;
|
|
|
828 #endif
|
|
|
829 #ifdef DIALOGS_ATHENA
|
|
|
830 if (!function)
|
|
|
831 function = xaw_create_dialog;
|
|
|
832 #endif
|
|
|
833 #ifdef DIALOGS_LUCID
|
|
|
834 /* not yet (not ever?) */
|
|
|
835 #endif
|
|
|
836 }
|
|
|
837 }
|
|
|
838
|
|
|
839 if (!function)
|
|
|
840 {
|
|
|
841 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
842 instance->info->type);
|
|
|
843 abort ();
|
|
|
844 }
|
|
|
845
|
|
|
846 instance->widget = (*function) (instance);
|
|
|
847
|
|
|
848 if (!instance->widget)
|
|
|
849 abort ();
|
|
|
850
|
|
|
851 /* XtRealizeWidget (instance->widget);*/
|
|
|
852 }
|
|
|
853
|
|
|
854 void
|
|
|
855 lw_register_widget (CONST char *type, CONST char *name,
|
|
|
856 LWLIB_ID id, widget_value *val,
|
|
|
857 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
858 lw_callback post_activate_cb)
|
|
|
859 {
|
|
|
860 if (!get_widget_info (id, False))
|
|
|
861 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
862 post_activate_cb);
|
|
|
863 }
|
|
|
864
|
|
|
865 Widget
|
|
|
866 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
867 {
|
|
|
868 widget_instance *instance;
|
|
|
869
|
|
|
870 instance = find_instance (id, parent, pop_up_p);
|
|
|
871 return instance ? instance->widget : NULL;
|
|
|
872 }
|
|
|
873
|
|
|
874 Widget
|
|
|
875 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
876 {
|
|
|
877 widget_instance *instance;
|
|
|
878 widget_info *info;
|
|
|
879
|
|
|
880 instance = find_instance (id, parent, pop_up_p);
|
|
|
881 if (!instance)
|
|
|
882 {
|
|
|
883 info = get_widget_info (id, False);
|
|
|
884 if (!info)
|
|
|
885 return NULL;
|
|
|
886 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
887 initialize_widget_instance (instance);
|
|
|
888 }
|
|
|
889 if (!instance->widget)
|
|
|
890 abort ();
|
|
|
891 return instance->widget;
|
|
|
892 }
|
|
|
893
|
|
|
894 Widget
|
|
|
895 lw_create_widget (CONST char *type, CONST char *name,
|
|
|
896 LWLIB_ID id, widget_value *val,
|
|
|
897 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
898 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
899 {
|
|
|
900 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
901 post_activate_cb);
|
|
|
902 return lw_make_widget (id, parent, pop_up_p);
|
|
|
903 }
|
|
|
904
|
|
|
905
|
|
|
906 /* destroying the widgets */
|
|
|
907 static void
|
|
|
908 destroy_one_instance (widget_instance *instance)
|
|
|
909 {
|
|
|
910 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
911 dereference the instance object (to set its widget slot to 0, since the
|
|
|
912 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
913 about the fact that its widget is dead too.
|
|
|
914
|
|
|
915 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
916 not have been run until arbitrarily long after the instance was freed.
|
|
|
917 */
|
|
|
918 if (instance->widget)
|
|
|
919 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
920 mark_widget_destroyed, (XtPointer)instance);
|
|
|
921
|
|
|
922 if (instance->widget)
|
|
|
923 {
|
|
|
924 /* The else are pretty tricky here, including the empty statement
|
|
|
925 at the end because it would be very bad to destroy a widget
|
|
|
926 twice. */
|
|
|
927 #ifdef NEED_LUCID
|
|
|
928 if (lw_lucid_widget_p (instance->widget))
|
|
|
929 xlw_destroy_instance (instance);
|
|
|
930 else
|
|
|
931 #endif
|
|
|
932 #ifdef NEED_MOTIF
|
|
|
933 if (lw_motif_widget_p (instance->widget))
|
|
|
934 xm_destroy_instance (instance);
|
|
|
935 else
|
|
|
936 #endif
|
|
|
937 #ifdef NEED_ATHENA
|
|
|
938 if (lw_xaw_widget_p (instance->widget))
|
|
|
939 xaw_destroy_instance (instance);
|
|
|
940 else
|
|
|
941 #endif
|
|
|
942 {
|
|
|
943 /* do not remove the empty statement */
|
|
|
944 ;
|
|
|
945 }
|
|
|
946 }
|
|
|
947
|
|
|
948 free_widget_instance (instance);
|
|
|
949 }
|
|
|
950
|
|
|
951 void
|
|
|
952 lw_destroy_widget (Widget w)
|
|
|
953 {
|
|
|
954 widget_instance *instance = get_widget_instance (w, True);
|
|
|
955
|
|
|
956 if (instance)
|
|
|
957 {
|
|
|
958 widget_info *info = instance->info;
|
|
|
959 /* instance has already been removed from the list; free it */
|
|
|
960 destroy_one_instance (instance);
|
|
|
961 /* if there are no instances left, free the info too */
|
|
|
962 if (!info->instances)
|
|
|
963 lw_destroy_all_widgets (info->id);
|
|
|
964 }
|
|
|
965 }
|
|
|
966
|
|
|
967 void
|
|
|
968 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
969 {
|
|
|
970 widget_info *info = get_widget_info (id, True);
|
|
|
971 widget_instance *instance;
|
|
|
972 widget_instance *next;
|
|
|
973
|
|
|
974 if (info)
|
|
|
975 {
|
|
|
976 for (instance = info->instances; instance; )
|
|
|
977 {
|
|
|
978 next = instance->next;
|
|
|
979 destroy_one_instance (instance);
|
|
|
980 instance = next;
|
|
|
981 }
|
|
|
982 free_widget_info (info);
|
|
|
983 }
|
|
|
984 }
|
|
|
985
|
|
|
986 void
|
|
|
987 lw_destroy_everything ()
|
|
|
988 {
|
|
|
989 while (all_widget_info)
|
|
|
990 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
991 }
|
|
|
992
|
|
|
993 void
|
|
|
994 lw_destroy_all_pop_ups ()
|
|
|
995 {
|
|
|
996 widget_info *info;
|
|
|
997 widget_info *next;
|
|
|
998 widget_instance *instance;
|
|
|
999
|
|
|
1000 for (info = all_widget_info; info; info = next)
|
|
|
1001 {
|
|
|
1002 next = info->next;
|
|
|
1003 instance = info->instances;
|
|
|
1004 if (instance && instance->pop_up_p)
|
|
|
1005 lw_destroy_all_widgets (info->id);
|
|
|
1006 }
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 Widget
|
|
|
1010 lw_raise_all_pop_up_widgets (void)
|
|
|
1011 {
|
|
|
1012 widget_info *info;
|
|
|
1013 widget_instance *instance;
|
|
|
1014 Widget result = NULL;
|
|
|
1015
|
|
|
1016 for (info = all_widget_info; info; info = info->next)
|
|
|
1017 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1018 if (instance->pop_up_p)
|
|
|
1019 {
|
|
|
1020 Widget widget = instance->widget;
|
|
|
1021 if (widget)
|
|
|
1022 {
|
|
|
1023 if (XtIsManaged (widget)
|
|
|
1024 #ifdef NEED_MOTIF
|
|
|
1025 /* What a complete load of crap!!!!
|
|
|
1026 When a dialogShell is on the screen, it is not managed!
|
|
|
1027 */
|
|
|
1028 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1029 XtIsManaged (first_child (widget)))
|
|
|
1030 #endif
|
|
|
1031 )
|
|
|
1032 {
|
|
|
1033 if (!result)
|
|
|
1034 result = widget;
|
|
|
1035 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1036 }
|
|
|
1037 }
|
|
|
1038 }
|
|
|
1039 return result;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 static void
|
|
|
1043 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1044 {
|
|
|
1045 widget_info *info = get_widget_info (id, False);
|
|
|
1046 widget_instance *instance;
|
|
|
1047
|
|
|
1048 if (info)
|
|
|
1049 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1050 if (instance->pop_up_p && instance->widget)
|
|
|
1051 {
|
|
|
1052 #ifdef NEED_LUCID
|
|
|
1053 if (lw_lucid_widget_p (instance->widget))
|
|
|
1054 {
|
|
|
1055 XtRealizeWidget (instance->widget);
|
|
|
1056 xlw_pop_instance (instance, up);
|
|
|
1057 }
|
|
|
1058 #endif
|
|
|
1059 #ifdef NEED_MOTIF
|
|
|
1060 if (lw_motif_widget_p (instance->widget))
|
|
|
1061 {
|
|
|
1062 XtRealizeWidget (instance->widget);
|
|
|
1063 xm_pop_instance (instance, up);
|
|
|
1064 }
|
|
|
1065 #endif
|
|
|
1066 #ifdef NEED_ATHENA
|
|
|
1067 if (lw_xaw_widget_p (instance->widget))
|
|
|
1068 {
|
|
|
1069 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1070 XtRealizeWidget (instance->widget);
|
|
|
1071 xaw_pop_instance (instance, up);
|
|
|
1072 }
|
|
|
1073 #endif
|
|
|
1074 }
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 void
|
|
|
1078 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1079 {
|
|
|
1080 lw_pop_all_widgets (id, True);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 void
|
|
|
1084 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1085 {
|
|
|
1086 lw_pop_all_widgets (id, False);
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 void
|
|
|
1090 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1091 {
|
|
|
1092 #ifdef MENUBARS_LUCID
|
|
|
1093 if (lw_lucid_widget_p (widget))
|
|
|
1094 xlw_popup_menu (widget, event);
|
|
|
1095 #endif
|
|
|
1096 #ifdef MENUBARS_MOTIF
|
|
|
1097 if (lw_motif_widget_p (widget))
|
|
|
1098 xm_popup_menu (widget, event);
|
|
|
1099 #endif
|
|
|
1100 #ifdef MENUBARS_ATHENA
|
|
|
1101 if (lw_xaw_widget_p (widget))
|
|
|
1102 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1103 #endif
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 /* get the values back */
|
|
|
1107 static Boolean
|
|
|
1108 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1109 {
|
|
|
1110 Widget widget = name_to_widget (instance, val->name);
|
|
|
1111
|
|
|
1112 if (widget)
|
|
|
1113 {
|
|
|
1114 #ifdef NEED_LUCID
|
|
|
1115 if (lw_lucid_widget_p (instance->widget))
|
|
|
1116 xlw_update_one_value (instance, widget, val);
|
|
|
1117 #endif
|
|
|
1118 #ifdef NEED_MOTIF
|
|
|
1119 if (lw_motif_widget_p (instance->widget))
|
|
|
1120 xm_update_one_value (instance, widget, val);
|
|
|
1121 #endif
|
|
|
1122 #ifdef NEED_ATHENA
|
|
|
1123 if (lw_xaw_widget_p (instance->widget))
|
|
|
1124 xaw_update_one_value (instance, widget, val);
|
|
|
1125 #endif
|
|
|
1126 return True;
|
|
|
1127 }
|
|
|
1128 else
|
|
|
1129 return False;
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 Boolean
|
|
|
1133 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1134 {
|
|
|
1135 widget_info *info = get_widget_info (id, False);
|
|
|
1136 widget_instance *instance;
|
|
|
1137 widget_value *val;
|
|
|
1138 Boolean result = False;
|
|
|
1139
|
|
|
1140 if (!info)
|
|
|
1141 return False;
|
|
|
1142
|
|
|
1143 instance = info->instances;
|
|
|
1144 if (!instance)
|
|
|
1145 return False;
|
|
|
1146
|
|
|
1147 for (val = val_out; val; val = val->next)
|
|
|
1148 if (get_one_value (instance, val))
|
|
|
1149 result = True;
|
|
|
1150
|
|
|
1151 return result;
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 widget_value*
|
|
|
1155 lw_get_all_values (LWLIB_ID id)
|
|
|
1156 {
|
|
|
1157 widget_info *info = get_widget_info (id, False);
|
|
|
1158 widget_value *val = info->val;
|
|
|
1159 if (lw_get_some_values (id, val))
|
|
|
1160 return val;
|
|
|
1161 else
|
|
|
1162 return NULL;
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 /* internal function used by the library dependent implementation to get the
|
|
|
1166 widget_value for a given widget in an instance */
|
|
|
1167 widget_value*
|
|
|
1168 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1169 {
|
|
|
1170 char *name = XtName (w);
|
|
|
1171 widget_value *cur;
|
|
|
1172 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1173 if (!strcmp (cur->name, name))
|
|
|
1174 return cur;
|
|
|
1175 return NULL;
|
|
|
1176 }
|
|
|
1177
|
|
|
1178
|
|
|
1179 /* update other instances value when one thing changed */
|
|
|
1180 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1181 modified to update other instances of the widgets. Closure should be the
|
|
|
1182 widget_instance. */
|
|
|
1183 void
|
|
|
1184 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1185 XtPointer call_data)
|
|
|
1186 {
|
|
|
1187 /* To forbid recursive calls */
|
|
|
1188 static Boolean updating;
|
|
|
1189
|
|
|
1190 widget_instance *instance = (widget_instance*)closure;
|
|
|
1191 char *name = XtName (widget);
|
|
|
1192 widget_info *info;
|
|
|
1193 widget_instance *cur;
|
|
|
1194 widget_value *val;
|
|
|
1195
|
|
|
1196 /* never recurse as this could cause infinite recursions. */
|
|
|
1197 if (updating)
|
|
|
1198 return;
|
|
|
1199
|
|
|
1200 /* protect against the widget being destroyed */
|
|
|
1201 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1202 return;
|
|
|
1203
|
|
|
1204 /* Return immediately if there are no other instances */
|
|
|
1205 info = instance->info;
|
|
|
1206 if (!info->instances->next)
|
|
|
1207 return;
|
|
|
1208
|
|
|
1209 updating = True;
|
|
|
1210
|
|
|
1211 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1212
|
|
|
1213 if (val && get_one_value (instance, val))
|
|
|
1214 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1215 if (cur != instance)
|
|
|
1216 set_one_value (cur, val, True);
|
|
|
1217
|
|
|
1218 updating = False;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221
|
|
|
1222
|
|
|
1223 /* get the id */
|
|
|
1224
|
|
|
1225 LWLIB_ID
|
|
|
1226 lw_get_widget_id (Widget w)
|
|
|
1227 {
|
|
|
1228 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1229
|
|
|
1230 return instance ? instance->info->id : 0;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233
|
|
|
1234 /* set the keyboard focus */
|
|
|
1235 void
|
|
|
1236 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1237 {
|
|
78
|
1238 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1239 /* This loses with Lesstif v0.75a */
|
|
0
|
1240 xm_set_keyboard_focus (parent, w);
|
|
|
1241 #else
|
|
|
1242 XtSetKeyboardFocus (parent, w);
|
|
|
1243 #endif
|
|
|
1244 }
|
|
|
1245
|
|
|
1246
|
|
|
1247 /* Show busy */
|
|
|
1248 static void
|
|
|
1249 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1250 {
|
|
|
1251 Pixel foreground = 0;
|
|
|
1252 Pixel background = 1;
|
|
|
1253 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1254 if (!widget_to_invert)
|
|
|
1255 widget_to_invert = w;
|
|
|
1256
|
|
|
1257 XtVaGetValues (widget_to_invert,
|
|
|
1258 XtNforeground, &foreground,
|
|
|
1259 XtNbackground, &background,
|
|
|
1260 0);
|
|
|
1261 XtVaSetValues (widget_to_invert,
|
|
|
1262 XtNforeground, background,
|
|
|
1263 XtNbackground, foreground,
|
|
|
1264 0);
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 void
|
|
|
1268 lw_show_busy (Widget w, Boolean busy)
|
|
|
1269 {
|
|
|
1270 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1271 widget_info *info;
|
|
|
1272 widget_instance *next;
|
|
|
1273
|
|
|
1274 if (instance)
|
|
|
1275 {
|
|
|
1276 info = instance->info;
|
|
|
1277 if (info->busy != busy)
|
|
|
1278 {
|
|
|
1279 for (next = info->instances; next; next = next->next)
|
|
|
1280 if (next->widget)
|
|
|
1281 show_one_widget_busy (next->widget, busy);
|
|
|
1282 info->busy = busy;
|
|
|
1283 }
|
|
|
1284 }
|
|
|
1285 }
|
