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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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163
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27 #include <stdio.h>
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0
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28 #include <stdlib.h>
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163
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29 #include <string.h>
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0
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30 #include <sys/types.h>
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163
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31 #ifdef HAVE_UNISTD_H
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32 #include <unistd.h>
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33 #endif
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0
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34 #include <X11/StringDefs.h>
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35 #include "lwlib-internal.h"
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36 #include "lwlib-utils.h"
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37
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38 #ifdef NEED_LUCID
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39 #include "lwlib-Xlw.h"
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40 #endif
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41 #ifdef NEED_MOTIF
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42 #include "lwlib-Xm.h"
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43 #endif
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44 #ifdef NEED_ATHENA
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45 #include "lwlib-Xaw.h"
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46 #endif
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47
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48 /* #### Does a check need to be put back in here to make sure we have
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49 sufficient defines to function properly or are the checks in the
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50 makefile sufficient? */
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51
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52 /* List of all widgets managed by the library. Note that each "widget"
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53 listed here may actually be a tree of widgets; for example, a
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54 single entry here might represent a single menubar or popup menu,
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55 each of which might be implemented with a tree of widgets.
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56 */
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57 static widget_info *all_widget_info = NULL;
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58
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59
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60 /* Forward declarations */
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61 static void
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62 instantiate_widget_instance (widget_instance *instance);
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63
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64
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65 /* utility functions for widget_instance and widget_info */
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66 static char *
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67 safe_strdup (CONST char *s)
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68 {
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69 char *result;
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70 if (! s) return 0;
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71 result = (char *) malloc (strlen (s) + 1);
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72 if (! result)
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73 return 0;
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74 strcpy (result, s);
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75 return result;
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76 }
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77
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78 static void
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79 safe_free_str (char *s)
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80 {
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81 if (s) free (s);
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82 }
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83
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84 static widget_value *widget_value_free_list = 0;
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85
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86 widget_value *
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87 malloc_widget_value (void)
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88 {
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89 widget_value *wv;
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90 if (widget_value_free_list)
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91 {
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92 wv = widget_value_free_list;
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93 widget_value_free_list = wv->free_list;
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94 wv->free_list = 0;
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95 }
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96 else
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97 {
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98 wv = (widget_value *) malloc (sizeof (widget_value));
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99 }
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100 if (wv)
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101 {
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102 memset (wv, 0, sizeof (widget_value));
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103 }
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104 return wv;
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105 }
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106
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107 /* this is analogous to free(). It frees only what was allocated
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108 by malloc_widget_value(), and no substructures.
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109 */
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110 void
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111 free_widget_value (widget_value *wv)
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112 {
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113 if (wv->free_list)
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114 abort ();
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115 wv->free_list = widget_value_free_list;
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116 widget_value_free_list = wv;
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117 }
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118
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119 static void free_widget_value_tree (widget_value *wv);
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120
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121 static void
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122 free_widget_value_contents (widget_value *wv)
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123 {
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124 if (wv->name) free (wv->name);
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125 if (wv->value) free (wv->value);
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126 if (wv->key) free (wv->key);
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127
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128 /* #### - all of this 0xDEADBEEF stuff should be unnecessary
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129 in production code... it should be conditionalized. */
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130 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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131
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132 if (wv->toolkit_data && wv->free_toolkit_data)
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133 {
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134 free (wv->toolkit_data);
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135 wv->toolkit_data = (void *) 0xDEADBEEF;
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136 }
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137 #ifdef NEED_SCROLLBARS
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138 if (wv->scrollbar_data)
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139 {
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140 free (wv->scrollbar_data);
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141 wv->scrollbar_data = NULL;
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142 }
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143 #endif
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144 if (wv->contents && (wv->contents != (widget_value*)1))
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145 {
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146 free_widget_value_tree (wv->contents);
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147 wv->contents = (widget_value *) 0xDEADBEEF;
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148 }
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149 if (wv->next)
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150 {
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151 free_widget_value_tree (wv->next);
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152 wv->next = (widget_value *) 0xDEADBEEF;
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153 }
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154 }
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155
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156 static void
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157 free_widget_value_tree (widget_value *wv)
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158 {
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159 if (!wv)
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160 return;
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161
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162 free_widget_value_contents (wv);
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163 free_widget_value (wv);
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164 }
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165
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166 #ifdef NEED_SCROLLBARS
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167
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168 static void
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169 copy_scrollbar_values (widget_value *val, widget_value *copy)
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170 {
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171 if (!copy->scrollbar_data)
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172 copy->scrollbar_data =
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173 (scrollbar_values *) malloc (sizeof (scrollbar_values));
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174
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175 if (val->scrollbar_data)
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176 *copy->scrollbar_data = *val->scrollbar_data;
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177 else
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178 memset (copy->scrollbar_data, 0, sizeof (scrollbar_values));
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179 }
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180
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181 /*
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182 * Return true if old->scrollbar_data were not equivalent
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183 * to new->scrollbar_data.
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184 */
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185 static Boolean
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186 merge_scrollbar_values (widget_value *old, widget_value *new)
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187 {
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188 Boolean changed = False;
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189
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190 if (new->scrollbar_data && !old->scrollbar_data)
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191 {
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192 copy_scrollbar_values (new, old);
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193 changed = True;
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194 }
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195 else if (!new->scrollbar_data && old->scrollbar_data)
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196 {
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197 free (old->scrollbar_data);
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198 old->scrollbar_data = NULL;
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199 }
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200 else if (new->scrollbar_data && old->scrollbar_data)
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201 {
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202 scrollbar_values *old_sb = old->scrollbar_data;
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203 scrollbar_values *new_sb = new->scrollbar_data;
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204 #define FROB(field) if (old_sb->field != new_sb->field) changed = True
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205 FROB (line_increment);
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206 FROB (page_increment);
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207 FROB (minimum);
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208 FROB (maximum);
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209 FROB (slider_size);
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210 FROB (slider_position);
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211 FROB (scrollbar_width);
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212 FROB (scrollbar_height);
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213 FROB (scrollbar_x);
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214 FROB (scrollbar_y);
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215 #undef FROB
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216 *old_sb = *new_sb;
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217 }
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218
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219 return changed;
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220 }
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221
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222 #endif /* NEED_SCROLLBARS */
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223
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224 /* Make a complete copy of a widget_value tree. Store CHANGE into
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225 the widget_value tree's `change' field. */
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226
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227 static widget_value *
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228 copy_widget_value_tree (widget_value *val, change_type change)
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229 {
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230 widget_value *copy;
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231
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232 if (!val)
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233 return NULL;
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234 if (val == (widget_value *) 1)
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235 return val;
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236
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237 copy = malloc_widget_value ();
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238 if (copy)
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239 {
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240 /* #### - don't seg fault *here* if out of memory. Menus will be
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241 truncated inexplicably. */
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242 copy->type = val->type;
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243 copy->name = safe_strdup (val->name);
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244 copy->value = safe_strdup (val->value);
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245 copy->key = safe_strdup (val->key);
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246 copy->enabled = val->enabled;
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247 copy->selected = val->selected;
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248 copy->edited = False;
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249 copy->change = change;
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250 copy->contents = copy_widget_value_tree (val->contents, change);
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251 copy->call_data = val->call_data;
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252 copy->next = copy_widget_value_tree (val->next, change);
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253 copy->toolkit_data = NULL;
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254 copy->free_toolkit_data = False;
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255 #ifdef NEED_SCROLLBARS
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256 copy_scrollbar_values (val, copy);
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257 #endif
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258 }
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259 return copy;
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260 }
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261
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262 /* This function is used to implement incremental menu construction. */
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263
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264 widget_value *
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265 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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266 {
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267 widget_value *copy;
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268
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269 if (!node || !newtree)
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270 abort ();
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271
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272 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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273
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274 free_widget_value_contents (node);
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275 *node = *copy;
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276 free_widget_value (copy); /* free the node, but not its contents. */
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277 return node;
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278 }
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279
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280 static widget_info *
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281 allocate_widget_info (CONST char *type, CONST char *name,
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282 LWLIB_ID id, widget_value *val,
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283 lw_callback pre_activate_cb, lw_callback selection_cb,
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284 lw_callback post_activate_cb)
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285 {
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286 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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287 info->type = safe_strdup (type);
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288 info->name = safe_strdup (name);
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289 info->id = id;
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290 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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291 info->busy = False;
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292 info->pre_activate_cb = pre_activate_cb;
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293 info->selection_cb = selection_cb;
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294 info->post_activate_cb = post_activate_cb;
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295 info->instances = NULL;
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296
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297 info->next = all_widget_info;
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298 all_widget_info = info;
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299
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300 return info;
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301 }
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302
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303 static void
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304 free_widget_info (widget_info *info)
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305 {
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306 safe_free_str (info->type);
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307 safe_free_str (info->name);
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308 free_widget_value_tree (info->val);
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309 memset ((void*)info, 0xDEADBEEF, sizeof (widget_info));
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310 free (info);
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311 }
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312
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313 static void
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314 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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315 {
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316 widget_instance *instance = (widget_instance*)closure;
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317
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318 /* be very conservative */
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319 if (instance->widget == widget)
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320 instance->widget = NULL;
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321 }
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322
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323 static widget_instance *
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324 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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325 {
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326 widget_instance *instance =
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327 (widget_instance *) malloc (sizeof (widget_instance));
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328 instance->parent = parent;
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329 instance->pop_up_p = pop_up_p;
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330 instance->info = info;
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331 instance->next = info->instances;
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332 info->instances = instance;
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333
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334 instantiate_widget_instance (instance);
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335
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336 XtAddCallback (instance->widget, XtNdestroyCallback,
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337 mark_widget_destroyed, (XtPointer)instance);
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338 return instance;
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339 }
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340
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341 static void
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342 free_widget_instance (widget_instance *instance)
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343 {
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344 memset ((void *) instance, 0xDEADBEEF, sizeof (widget_instance));
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345 free (instance);
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346 }
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347
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348 static widget_info *
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349 get_widget_info (LWLIB_ID id, Boolean remove_p)
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350 {
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351 widget_info *info;
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352 widget_info *prev;
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353 for (prev = NULL, info = all_widget_info;
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354 info;
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355 prev = info, info = info->next)
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356 if (info->id == id)
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357 {
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358 if (remove_p)
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359 {
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360 if (prev)
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361 prev->next = info->next;
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362 else
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363 all_widget_info = info->next;
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364 }
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365 return info;
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366 }
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367 return NULL;
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368 }
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369
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370 /* Internal function used by the library dependent implementation to get the
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371 widget_value for a given widget in an instance */
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372 widget_info *
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373 lw_get_widget_info (LWLIB_ID id)
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374 {
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375 return get_widget_info (id, 0);
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376 }
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377
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378 static int
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379 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
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380 void *closure),
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381 void *closure)
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382 {
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383 int retval = 0;
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384
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385 if (value->contents)
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386 retval = map_widget_values (value->contents, mapfunc, closure);
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387 if (retval)
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388 return retval;
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389
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390 if (value->next)
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391 retval = map_widget_values (value->next, mapfunc, closure);
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392 if (retval)
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393 return retval;
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394
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395 return (mapfunc) (value, closure);
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396 }
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397
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398 int
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399 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
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400 void *closure),
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401 void *closure)
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402 {
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403 widget_info *info = get_widget_info (id, 0);
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404
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405 if (!info)
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406 abort ();
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407
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408 if (info->val)
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409 return map_widget_values (info->val, mapfunc, closure);
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410 return 0;
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411 }
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412
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413 static widget_instance *
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414 get_widget_instance (Widget widget, Boolean remove_p)
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415 {
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416 widget_info *info;
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417 widget_instance *instance;
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418 widget_instance *prev;
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419 for (info = all_widget_info; info; info = info->next)
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420 for (prev = NULL, instance = info->instances;
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421 instance;
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422 prev = instance, instance = instance->next)
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423 if (instance->widget == widget)
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424 {
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425 if (remove_p)
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426 {
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427 if (prev)
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428 prev->next = instance->next;
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429 else
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430 info->instances = instance->next;
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431 }
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432 return instance;
|
|
|
433 }
|
|
|
434 return (widget_instance *) 0;
|
|
|
435 }
|
|
|
436
|
|
|
437 static widget_instance*
|
|
|
438 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
439 {
|
|
|
440 widget_info *info = get_widget_info (id, False);
|
|
|
441 widget_instance *instance;
|
|
|
442
|
|
|
443 if (info)
|
|
|
444 for (instance = info->instances; instance; instance = instance->next)
|
|
|
445 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
446 return instance;
|
|
|
447
|
|
|
448 return NULL;
|
|
|
449 }
|
|
|
450
|
|
|
451
|
|
|
452 /* utility function for widget_value */
|
|
|
453 static Boolean
|
|
|
454 safe_strcmp (CONST char *s1, CONST char *s2)
|
|
|
455 {
|
|
|
456 if (!!s1 ^ !!s2) return True;
|
|
|
457 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
458 }
|
|
|
459
|
|
118
|
460 #ifndef WINDOWSNT
|
|
2
|
461 static change_type
|
|
|
462 max (change_type i1, change_type i2)
|
|
0
|
463 {
|
|
2
|
464 return (int)i1 > (int)i2 ? i1 : i2;
|
|
0
|
465 }
|
|
118
|
466 #endif
|
|
0
|
467
|
|
|
468
|
|
|
469 #if 0
|
|
|
470 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
471 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
472 name, \
|
|
|
473 (oc == NO_CHANGE ? "none" : \
|
|
|
474 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
475 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
476 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
477 oc, \
|
|
|
478 (nc == NO_CHANGE ? "none" : \
|
|
|
479 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
480 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
481 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
482 nc, desc, a1, a2)
|
|
|
483 #else
|
|
|
484 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
485 #endif
|
|
|
486
|
|
|
487
|
|
|
488 static widget_value *
|
|
|
489 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
490 {
|
|
|
491 change_type change;
|
|
|
492 widget_value *merged_next;
|
|
|
493 widget_value *merged_contents;
|
|
|
494
|
|
|
495 if (!val1)
|
|
|
496 {
|
|
|
497 if (val2)
|
|
|
498 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
499 else
|
|
|
500 return NULL;
|
|
|
501 }
|
|
|
502 if (!val2)
|
|
|
503 {
|
|
|
504 free_widget_value_tree (val1);
|
|
|
505 return NULL;
|
|
|
506 }
|
|
|
507
|
|
|
508 change = NO_CHANGE;
|
|
|
509
|
|
|
510 if (val1->type != val2->type)
|
|
|
511 {
|
|
|
512 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
513 val1->type, val2->type);
|
|
|
514 change = max (change, STRUCTURAL_CHANGE);
|
|
|
515 val1->type = val2->type;
|
|
|
516 }
|
|
|
517 if (safe_strcmp (val1->name, val2->name))
|
|
|
518 {
|
|
|
519 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
520 val1->name, val2->name);
|
|
|
521 change = max (change, STRUCTURAL_CHANGE);
|
|
|
522 safe_free_str (val1->name);
|
|
|
523 val1->name = safe_strdup (val2->name);
|
|
|
524 }
|
|
|
525 if (safe_strcmp (val1->value, val2->value))
|
|
|
526 {
|
|
|
527 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
528 val1->value, val2->value);
|
|
|
529 change = max (change, VISIBLE_CHANGE);
|
|
|
530 safe_free_str (val1->value);
|
|
|
531 val1->value = safe_strdup (val2->value);
|
|
|
532 }
|
|
|
533 if (safe_strcmp (val1->key, val2->key))
|
|
|
534 {
|
|
|
535 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
536 val1->key, val2->key);
|
|
|
537 change = max (change, VISIBLE_CHANGE);
|
|
|
538 safe_free_str (val1->key);
|
|
|
539 val1->key = safe_strdup (val2->key);
|
|
|
540 }
|
|
|
541 if (val1->enabled != val2->enabled)
|
|
|
542 {
|
|
|
543 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
544 val1->enabled, val2->enabled);
|
|
|
545 change = max (change, VISIBLE_CHANGE);
|
|
|
546 val1->enabled = val2->enabled;
|
|
|
547 }
|
|
|
548 if (val1->selected != val2->selected)
|
|
|
549 {
|
|
|
550 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
551 val1->selected, val2->selected);
|
|
|
552 change = max (change, VISIBLE_CHANGE);
|
|
|
553 val1->selected = val2->selected;
|
|
|
554 }
|
|
|
555 if (val1->call_data != val2->call_data)
|
|
|
556 {
|
|
|
557 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
558 val1->call_data, val2->call_data);
|
|
|
559 change = max (change, INVISIBLE_CHANGE);
|
|
|
560 val1->call_data = val2->call_data;
|
|
|
561 }
|
|
|
562 #ifdef NEED_SCROLLBARS
|
|
|
563 if (merge_scrollbar_values (val1, val2))
|
|
|
564 {
|
|
|
565 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
566 change = max (change, VISIBLE_CHANGE);
|
|
|
567 }
|
|
|
568 #endif
|
|
|
569
|
|
|
570 if (level > 0)
|
|
|
571 {
|
|
|
572 merged_contents =
|
|
|
573 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
574
|
|
|
575 if (val1->contents && !merged_contents)
|
|
|
576 {
|
|
|
577 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
578 0, 0);
|
|
|
579 change = max (change, INVISIBLE_CHANGE);
|
|
|
580 }
|
|
|
581 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
582 {
|
|
|
583 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
584 0, 0);
|
|
|
585 change = max (change, INVISIBLE_CHANGE);
|
|
|
586 }
|
|
|
587
|
|
|
588 val1->contents = merged_contents;
|
|
|
589 }
|
|
|
590
|
|
|
591 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
592
|
|
|
593 if (val1->next && !merged_next)
|
|
|
594 {
|
|
|
595 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
596 0, 0);
|
|
|
597 change = max (change, STRUCTURAL_CHANGE);
|
|
|
598 }
|
|
|
599 else if (merged_next)
|
|
|
600 {
|
|
|
601 if (merged_next->change)
|
|
|
602 {
|
|
|
603 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
604 0, 0);
|
|
|
605 }
|
|
|
606 change = max (change, merged_next->change);
|
|
|
607 }
|
|
|
608
|
|
|
609 val1->next = merged_next;
|
|
|
610
|
|
|
611 val1->change = change;
|
|
|
612
|
|
|
613 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
614 {
|
|
|
615 if (val1->free_toolkit_data)
|
|
|
616 free (val1->toolkit_data);
|
|
|
617 val1->toolkit_data = NULL;
|
|
|
618 }
|
|
|
619
|
|
|
620 return val1;
|
|
|
621 }
|
|
|
622
|
|
|
623
|
|
|
624 /* modifying the widgets */
|
|
|
625 static Widget
|
|
|
626 name_to_widget (widget_instance *instance, CONST char *name)
|
|
|
627 {
|
|
|
628 Widget widget = NULL;
|
|
|
629
|
|
|
630 if (!instance->widget)
|
|
|
631 return NULL;
|
|
|
632
|
|
|
633 if (!strcmp (XtName (instance->widget), name))
|
|
|
634 widget = instance->widget;
|
|
|
635 else
|
|
|
636 {
|
|
|
637 int length = strlen (name) + 2;
|
|
|
638 char *real_name = (char *) alloca (length);
|
|
|
639 real_name [0] = '*';
|
|
|
640 strcpy (real_name + 1, name);
|
|
|
641
|
|
|
642 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
643 }
|
|
|
644 return widget;
|
|
|
645 }
|
|
|
646
|
|
|
647 static void
|
|
|
648 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
649 {
|
|
|
650 Widget widget = name_to_widget (instance, val->name);
|
|
|
651
|
|
|
652 if (widget)
|
|
|
653 {
|
|
|
654 #ifdef NEED_LUCID
|
|
|
655 if (lw_lucid_widget_p (instance->widget))
|
|
|
656 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
657 #endif
|
|
|
658 #ifdef NEED_MOTIF
|
|
|
659 if (lw_motif_widget_p (instance->widget))
|
|
|
660 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
661 #endif
|
|
|
662 #ifdef NEED_ATHENA
|
|
|
663 if (lw_xaw_widget_p (instance->widget))
|
|
|
664 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
665 #endif
|
|
|
666 }
|
|
|
667 }
|
|
|
668
|
|
|
669 static void
|
|
|
670 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
671 {
|
|
|
672 widget_value *val;
|
|
|
673
|
|
|
674 if (!instance->widget)
|
|
|
675 /* the widget was destroyed */
|
|
|
676 return;
|
|
|
677
|
|
|
678 for (val = instance->info->val; val; val = val->next)
|
|
|
679 if (val->change != NO_CHANGE)
|
|
|
680 set_one_value (instance, val, deep_p);
|
|
|
681 }
|
|
|
682
|
|
|
683 static void
|
|
|
684 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
685 {
|
|
|
686 widget_instance *instance;
|
|
|
687 widget_value *val;
|
|
|
688
|
|
|
689 for (instance = info->instances; instance; instance = instance->next)
|
|
|
690 update_one_widget_instance (instance, deep_p);
|
|
|
691
|
|
|
692 for (val = info->val; val; val = val->next)
|
|
|
693 val->change = NO_CHANGE;
|
|
|
694 }
|
|
|
695
|
|
|
696 void
|
|
|
697 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
698 {
|
|
|
699 widget_info *info = get_widget_info (id, False);
|
|
|
700 widget_value *new_val;
|
|
|
701 widget_value *next_new_val;
|
|
|
702 widget_value *cur;
|
|
|
703 widget_value *prev;
|
|
|
704 widget_value *next;
|
|
|
705 int found;
|
|
|
706
|
|
|
707 if (!info)
|
|
|
708 return;
|
|
|
709
|
|
|
710 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
711 {
|
|
|
712 next_new_val = new_val->next;
|
|
|
713 new_val->next = NULL;
|
|
|
714 found = False;
|
|
|
715 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
716 if (!strcmp (cur->name, new_val->name))
|
|
|
717 {
|
|
|
718 found = True;
|
|
|
719 next = cur->next;
|
|
|
720 cur->next = NULL;
|
|
|
721 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
722 if (prev)
|
|
|
723 prev->next = cur ? cur : next;
|
|
|
724 else
|
|
|
725 info->val = cur ? cur : next;
|
|
|
726 if (cur)
|
|
|
727 cur->next = next;
|
|
|
728 break;
|
|
|
729 }
|
|
|
730 if (!found)
|
|
|
731 {
|
|
|
732 /* Could not find it, add it */
|
|
|
733 if (prev)
|
|
|
734 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
735 else
|
|
|
736 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
737 }
|
|
|
738 new_val->next = next_new_val;
|
|
|
739 }
|
|
|
740
|
|
|
741 update_all_widget_values (info, deep_p);
|
|
|
742 }
|
|
|
743
|
|
|
744
|
|
|
745 /* creating the widgets */
|
|
|
746
|
|
|
747 static void
|
|
|
748 initialize_widget_instance (widget_instance *instance)
|
|
|
749 {
|
|
|
750 widget_value *val;
|
|
|
751
|
|
|
752 for (val = instance->info->val; val; val = val->next)
|
|
|
753 val->change = STRUCTURAL_CHANGE;
|
|
|
754
|
|
|
755 update_one_widget_instance (instance, True);
|
|
|
756
|
|
|
757 for (val = instance->info->val; val; val = val->next)
|
|
|
758 val->change = NO_CHANGE;
|
|
|
759 }
|
|
|
760
|
|
|
761
|
|
|
762 static widget_creation_function
|
|
|
763 find_in_table (CONST char *type, widget_creation_entry *table)
|
|
|
764 {
|
|
|
765 widget_creation_entry *cur;
|
|
|
766 for (cur = table; cur->type; cur++)
|
|
|
767 if (!strcasecmp (type, cur->type))
|
|
|
768 return cur->function;
|
|
|
769 return NULL;
|
|
|
770 }
|
|
|
771
|
|
|
772 static Boolean
|
|
|
773 dialog_spec_p (CONST char *name)
|
|
|
774 {
|
|
|
775 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
776 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
777 if (!name)
|
|
|
778 return False;
|
|
|
779
|
|
|
780 switch (name [0])
|
|
|
781 {
|
|
|
782 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
783 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
784 if (name [1] >= '0' && name [1] <= '9')
|
|
|
785 {
|
|
|
786 if (name [2] != 'B' && name [2] != 'b')
|
|
|
787 return False;
|
|
|
788 if (!name [3])
|
|
|
789 return True;
|
|
|
790 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
791 return True;
|
|
|
792 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
793 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
794 return True;
|
|
|
795 return False;
|
|
|
796 }
|
|
|
797 else
|
|
|
798 return False;
|
|
|
799
|
|
|
800 default:
|
|
|
801 return False;
|
|
|
802 }
|
|
|
803 }
|
|
|
804
|
|
|
805 static void
|
|
|
806 instantiate_widget_instance (widget_instance *instance)
|
|
|
807 {
|
|
|
808 widget_creation_function function = NULL;
|
|
|
809
|
|
|
810 #ifdef NEED_LUCID
|
|
|
811 if (!function)
|
|
|
812 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
813 #endif
|
|
|
814 #ifdef NEED_MOTIF
|
|
|
815 if (!function)
|
|
|
816 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
817 #endif
|
|
|
818 #ifdef NEED_ATHENA
|
|
|
819 if (!function)
|
|
|
820 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
821 #endif
|
|
|
822
|
|
|
823 if (!function)
|
|
|
824 {
|
|
|
825 if (dialog_spec_p (instance->info->type))
|
|
|
826 {
|
|
|
827 #ifdef DIALOGS_MOTIF
|
|
|
828 if (!function)
|
|
|
829 function = xm_create_dialog;
|
|
|
830 #endif
|
|
|
831 #ifdef DIALOGS_ATHENA
|
|
|
832 if (!function)
|
|
|
833 function = xaw_create_dialog;
|
|
|
834 #endif
|
|
|
835 #ifdef DIALOGS_LUCID
|
|
|
836 /* not yet (not ever?) */
|
|
|
837 #endif
|
|
|
838 }
|
|
|
839 }
|
|
|
840
|
|
|
841 if (!function)
|
|
|
842 {
|
|
|
843 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
844 instance->info->type);
|
|
|
845 abort ();
|
|
|
846 }
|
|
|
847
|
|
|
848 instance->widget = (*function) (instance);
|
|
|
849
|
|
|
850 if (!instance->widget)
|
|
|
851 abort ();
|
|
|
852
|
|
|
853 /* XtRealizeWidget (instance->widget);*/
|
|
|
854 }
|
|
|
855
|
|
|
856 void
|
|
|
857 lw_register_widget (CONST char *type, CONST char *name,
|
|
|
858 LWLIB_ID id, widget_value *val,
|
|
|
859 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
860 lw_callback post_activate_cb)
|
|
|
861 {
|
|
|
862 if (!get_widget_info (id, False))
|
|
|
863 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
864 post_activate_cb);
|
|
|
865 }
|
|
|
866
|
|
|
867 Widget
|
|
|
868 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
869 {
|
|
|
870 widget_instance *instance;
|
|
|
871
|
|
|
872 instance = find_instance (id, parent, pop_up_p);
|
|
|
873 return instance ? instance->widget : NULL;
|
|
|
874 }
|
|
|
875
|
|
|
876 Widget
|
|
|
877 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
878 {
|
|
|
879 widget_instance *instance;
|
|
|
880 widget_info *info;
|
|
|
881
|
|
|
882 instance = find_instance (id, parent, pop_up_p);
|
|
|
883 if (!instance)
|
|
|
884 {
|
|
|
885 info = get_widget_info (id, False);
|
|
|
886 if (!info)
|
|
|
887 return NULL;
|
|
|
888 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
889 initialize_widget_instance (instance);
|
|
|
890 }
|
|
|
891 if (!instance->widget)
|
|
|
892 abort ();
|
|
|
893 return instance->widget;
|
|
|
894 }
|
|
|
895
|
|
|
896 Widget
|
|
|
897 lw_create_widget (CONST char *type, CONST char *name,
|
|
|
898 LWLIB_ID id, widget_value *val,
|
|
|
899 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
900 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
901 {
|
|
|
902 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
903 post_activate_cb);
|
|
|
904 return lw_make_widget (id, parent, pop_up_p);
|
|
|
905 }
|
|
|
906
|
|
|
907
|
|
|
908 /* destroying the widgets */
|
|
|
909 static void
|
|
|
910 destroy_one_instance (widget_instance *instance)
|
|
|
911 {
|
|
|
912 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
913 dereference the instance object (to set its widget slot to 0, since the
|
|
|
914 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
915 about the fact that its widget is dead too.
|
|
|
916
|
|
|
917 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
918 not have been run until arbitrarily long after the instance was freed.
|
|
|
919 */
|
|
|
920 if (instance->widget)
|
|
|
921 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
922 mark_widget_destroyed, (XtPointer)instance);
|
|
|
923
|
|
|
924 if (instance->widget)
|
|
|
925 {
|
|
|
926 /* The else are pretty tricky here, including the empty statement
|
|
|
927 at the end because it would be very bad to destroy a widget
|
|
|
928 twice. */
|
|
|
929 #ifdef NEED_LUCID
|
|
|
930 if (lw_lucid_widget_p (instance->widget))
|
|
|
931 xlw_destroy_instance (instance);
|
|
|
932 else
|
|
|
933 #endif
|
|
|
934 #ifdef NEED_MOTIF
|
|
|
935 if (lw_motif_widget_p (instance->widget))
|
|
|
936 xm_destroy_instance (instance);
|
|
|
937 else
|
|
|
938 #endif
|
|
|
939 #ifdef NEED_ATHENA
|
|
|
940 if (lw_xaw_widget_p (instance->widget))
|
|
|
941 xaw_destroy_instance (instance);
|
|
|
942 else
|
|
|
943 #endif
|
|
|
944 {
|
|
|
945 /* do not remove the empty statement */
|
|
|
946 ;
|
|
|
947 }
|
|
|
948 }
|
|
|
949
|
|
|
950 free_widget_instance (instance);
|
|
|
951 }
|
|
|
952
|
|
|
953 void
|
|
|
954 lw_destroy_widget (Widget w)
|
|
|
955 {
|
|
|
956 widget_instance *instance = get_widget_instance (w, True);
|
|
|
957
|
|
|
958 if (instance)
|
|
|
959 {
|
|
|
960 widget_info *info = instance->info;
|
|
|
961 /* instance has already been removed from the list; free it */
|
|
|
962 destroy_one_instance (instance);
|
|
|
963 /* if there are no instances left, free the info too */
|
|
|
964 if (!info->instances)
|
|
|
965 lw_destroy_all_widgets (info->id);
|
|
|
966 }
|
|
|
967 }
|
|
|
968
|
|
|
969 void
|
|
|
970 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
971 {
|
|
|
972 widget_info *info = get_widget_info (id, True);
|
|
|
973 widget_instance *instance;
|
|
|
974 widget_instance *next;
|
|
|
975
|
|
|
976 if (info)
|
|
|
977 {
|
|
|
978 for (instance = info->instances; instance; )
|
|
|
979 {
|
|
|
980 next = instance->next;
|
|
|
981 destroy_one_instance (instance);
|
|
|
982 instance = next;
|
|
|
983 }
|
|
|
984 free_widget_info (info);
|
|
|
985 }
|
|
|
986 }
|
|
|
987
|
|
|
988 void
|
|
|
989 lw_destroy_everything ()
|
|
|
990 {
|
|
|
991 while (all_widget_info)
|
|
|
992 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
993 }
|
|
|
994
|
|
|
995 void
|
|
|
996 lw_destroy_all_pop_ups ()
|
|
|
997 {
|
|
|
998 widget_info *info;
|
|
|
999 widget_info *next;
|
|
|
1000 widget_instance *instance;
|
|
|
1001
|
|
|
1002 for (info = all_widget_info; info; info = next)
|
|
|
1003 {
|
|
|
1004 next = info->next;
|
|
|
1005 instance = info->instances;
|
|
|
1006 if (instance && instance->pop_up_p)
|
|
|
1007 lw_destroy_all_widgets (info->id);
|
|
|
1008 }
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 Widget
|
|
|
1012 lw_raise_all_pop_up_widgets (void)
|
|
|
1013 {
|
|
|
1014 widget_info *info;
|
|
|
1015 widget_instance *instance;
|
|
|
1016 Widget result = NULL;
|
|
|
1017
|
|
|
1018 for (info = all_widget_info; info; info = info->next)
|
|
|
1019 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1020 if (instance->pop_up_p)
|
|
|
1021 {
|
|
|
1022 Widget widget = instance->widget;
|
|
|
1023 if (widget)
|
|
|
1024 {
|
|
|
1025 if (XtIsManaged (widget)
|
|
|
1026 #ifdef NEED_MOTIF
|
|
|
1027 /* What a complete load of crap!!!!
|
|
|
1028 When a dialogShell is on the screen, it is not managed!
|
|
|
1029 */
|
|
|
1030 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1031 XtIsManaged (first_child (widget)))
|
|
|
1032 #endif
|
|
|
1033 )
|
|
|
1034 {
|
|
|
1035 if (!result)
|
|
|
1036 result = widget;
|
|
|
1037 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1038 }
|
|
|
1039 }
|
|
|
1040 }
|
|
|
1041 return result;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 static void
|
|
|
1045 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1046 {
|
|
|
1047 widget_info *info = get_widget_info (id, False);
|
|
|
1048 widget_instance *instance;
|
|
|
1049
|
|
|
1050 if (info)
|
|
|
1051 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1052 if (instance->pop_up_p && instance->widget)
|
|
|
1053 {
|
|
|
1054 #ifdef NEED_LUCID
|
|
|
1055 if (lw_lucid_widget_p (instance->widget))
|
|
|
1056 {
|
|
|
1057 XtRealizeWidget (instance->widget);
|
|
|
1058 xlw_pop_instance (instance, up);
|
|
|
1059 }
|
|
|
1060 #endif
|
|
|
1061 #ifdef NEED_MOTIF
|
|
|
1062 if (lw_motif_widget_p (instance->widget))
|
|
|
1063 {
|
|
|
1064 XtRealizeWidget (instance->widget);
|
|
|
1065 xm_pop_instance (instance, up);
|
|
|
1066 }
|
|
|
1067 #endif
|
|
|
1068 #ifdef NEED_ATHENA
|
|
|
1069 if (lw_xaw_widget_p (instance->widget))
|
|
|
1070 {
|
|
|
1071 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1072 XtRealizeWidget (instance->widget);
|
|
|
1073 xaw_pop_instance (instance, up);
|
|
|
1074 }
|
|
|
1075 #endif
|
|
|
1076 }
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 void
|
|
|
1080 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1081 {
|
|
|
1082 lw_pop_all_widgets (id, True);
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 void
|
|
|
1086 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1087 {
|
|
|
1088 lw_pop_all_widgets (id, False);
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 void
|
|
|
1092 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1093 {
|
|
|
1094 #ifdef MENUBARS_LUCID
|
|
|
1095 if (lw_lucid_widget_p (widget))
|
|
|
1096 xlw_popup_menu (widget, event);
|
|
|
1097 #endif
|
|
|
1098 #ifdef MENUBARS_MOTIF
|
|
|
1099 if (lw_motif_widget_p (widget))
|
|
|
1100 xm_popup_menu (widget, event);
|
|
|
1101 #endif
|
|
|
1102 #ifdef MENUBARS_ATHENA
|
|
|
1103 if (lw_xaw_widget_p (widget))
|
|
|
1104 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1105 #endif
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 /* get the values back */
|
|
|
1109 static Boolean
|
|
|
1110 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1111 {
|
|
|
1112 Widget widget = name_to_widget (instance, val->name);
|
|
|
1113
|
|
|
1114 if (widget)
|
|
|
1115 {
|
|
|
1116 #ifdef NEED_LUCID
|
|
|
1117 if (lw_lucid_widget_p (instance->widget))
|
|
|
1118 xlw_update_one_value (instance, widget, val);
|
|
|
1119 #endif
|
|
|
1120 #ifdef NEED_MOTIF
|
|
|
1121 if (lw_motif_widget_p (instance->widget))
|
|
|
1122 xm_update_one_value (instance, widget, val);
|
|
|
1123 #endif
|
|
|
1124 #ifdef NEED_ATHENA
|
|
|
1125 if (lw_xaw_widget_p (instance->widget))
|
|
|
1126 xaw_update_one_value (instance, widget, val);
|
|
|
1127 #endif
|
|
|
1128 return True;
|
|
|
1129 }
|
|
|
1130 else
|
|
|
1131 return False;
|
|
|
1132 }
|
|
|
1133
|
|
|
1134 Boolean
|
|
|
1135 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1136 {
|
|
|
1137 widget_info *info = get_widget_info (id, False);
|
|
|
1138 widget_instance *instance;
|
|
|
1139 widget_value *val;
|
|
|
1140 Boolean result = False;
|
|
|
1141
|
|
|
1142 if (!info)
|
|
|
1143 return False;
|
|
|
1144
|
|
|
1145 instance = info->instances;
|
|
|
1146 if (!instance)
|
|
|
1147 return False;
|
|
|
1148
|
|
|
1149 for (val = val_out; val; val = val->next)
|
|
|
1150 if (get_one_value (instance, val))
|
|
|
1151 result = True;
|
|
|
1152
|
|
|
1153 return result;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 widget_value*
|
|
|
1157 lw_get_all_values (LWLIB_ID id)
|
|
|
1158 {
|
|
|
1159 widget_info *info = get_widget_info (id, False);
|
|
|
1160 widget_value *val = info->val;
|
|
|
1161 if (lw_get_some_values (id, val))
|
|
|
1162 return val;
|
|
|
1163 else
|
|
|
1164 return NULL;
|
|
|
1165 }
|
|
|
1166
|
|
|
1167 /* internal function used by the library dependent implementation to get the
|
|
|
1168 widget_value for a given widget in an instance */
|
|
|
1169 widget_value*
|
|
|
1170 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1171 {
|
|
|
1172 char *name = XtName (w);
|
|
|
1173 widget_value *cur;
|
|
|
1174 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1175 if (!strcmp (cur->name, name))
|
|
|
1176 return cur;
|
|
|
1177 return NULL;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180
|
|
|
1181 /* update other instances value when one thing changed */
|
|
|
1182 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1183 modified to update other instances of the widgets. Closure should be the
|
|
|
1184 widget_instance. */
|
|
|
1185 void
|
|
|
1186 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1187 XtPointer call_data)
|
|
|
1188 {
|
|
|
1189 /* To forbid recursive calls */
|
|
|
1190 static Boolean updating;
|
|
|
1191
|
|
|
1192 widget_instance *instance = (widget_instance*)closure;
|
|
|
1193 char *name = XtName (widget);
|
|
|
1194 widget_info *info;
|
|
|
1195 widget_instance *cur;
|
|
|
1196 widget_value *val;
|
|
|
1197
|
|
|
1198 /* never recurse as this could cause infinite recursions. */
|
|
|
1199 if (updating)
|
|
|
1200 return;
|
|
|
1201
|
|
|
1202 /* protect against the widget being destroyed */
|
|
|
1203 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1204 return;
|
|
|
1205
|
|
|
1206 /* Return immediately if there are no other instances */
|
|
|
1207 info = instance->info;
|
|
|
1208 if (!info->instances->next)
|
|
|
1209 return;
|
|
|
1210
|
|
|
1211 updating = True;
|
|
|
1212
|
|
|
1213 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1214
|
|
|
1215 if (val && get_one_value (instance, val))
|
|
|
1216 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1217 if (cur != instance)
|
|
|
1218 set_one_value (cur, val, True);
|
|
|
1219
|
|
|
1220 updating = False;
|
|
|
1221 }
|
|
|
1222
|
|
|
1223
|
|
|
1224
|
|
|
1225 /* get the id */
|
|
|
1226
|
|
|
1227 LWLIB_ID
|
|
|
1228 lw_get_widget_id (Widget w)
|
|
|
1229 {
|
|
|
1230 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1231
|
|
|
1232 return instance ? instance->info->id : 0;
|
|
|
1233 }
|
|
|
1234
|
|
|
1235
|
|
|
1236 /* set the keyboard focus */
|
|
|
1237 void
|
|
|
1238 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1239 {
|
|
78
|
1240 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1241 /* This loses with Lesstif v0.75a */
|
|
0
|
1242 xm_set_keyboard_focus (parent, w);
|
|
|
1243 #else
|
|
|
1244 XtSetKeyboardFocus (parent, w);
|
|
|
1245 #endif
|
|
|
1246 }
|
|
|
1247
|
|
|
1248
|
|
|
1249 /* Show busy */
|
|
|
1250 static void
|
|
|
1251 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1252 {
|
|
|
1253 Pixel foreground = 0;
|
|
|
1254 Pixel background = 1;
|
|
|
1255 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
165
|
1256 Arg al [2];
|
|
|
1257
|
|
0
|
1258 if (!widget_to_invert)
|
|
|
1259 widget_to_invert = w;
|
|
165
|
1260
|
|
|
1261 XtSetArg (al [0], XtNforeground, &foreground);
|
|
|
1262 XtSetArg (al [1], XtNbackground, &background);
|
|
|
1263 XtGetValues (widget_to_invert, al, 2);
|
|
|
1264
|
|
|
1265 XtSetArg (al [0], XtNforeground, background);
|
|
|
1266 XtSetArg (al [1], XtNbackground, foreground);
|
|
|
1267 XtSetValues (widget_to_invert, al, 2);
|
|
0
|
1268 }
|
|
|
1269
|
|
|
1270 void
|
|
|
1271 lw_show_busy (Widget w, Boolean busy)
|
|
|
1272 {
|
|
|
1273 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1274 widget_info *info;
|
|
|
1275 widget_instance *next;
|
|
|
1276
|
|
|
1277 if (instance)
|
|
|
1278 {
|
|
|
1279 info = instance->info;
|
|
|
1280 if (info->busy != busy)
|
|
|
1281 {
|
|
|
1282 for (next = info->instances; next; next = next->next)
|
|
|
1283 if (next->widget)
|
|
|
1284 show_one_widget_busy (next->widget, busy);
|
|
|
1285 info->busy = busy;
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288 }
|
