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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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70
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18 along with GNU Emacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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0
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20
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21 #ifdef NeXT
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22 #undef __STRICT_BSD__ /* ick */
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23 #endif
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24
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25 #include <stdlib.h>
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26 #include <unistd.h>
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27 #include <sys/types.h>
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28 #include <string.h>
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29 #include <stdio.h>
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30 #include <X11/StringDefs.h>
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31 #include "lwlib-internal.h"
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32 #include "lwlib-utils.h"
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33
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34 #if defined(__GNUC__) && !defined(alloca)
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35 #define alloca __builtin_alloca
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36 #endif
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37
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70
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38 #if ((!__GNUC__) && !defined(__hpux)) && !defined(_AIX) && !defined (_SCO_DS) && !defined (__USLC__) && !defined(sinix)
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0
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39 #include <alloca.h>
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40 #endif
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41
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42 #ifdef __SUNPRO_C
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43 void *__builtin_alloca (unsigned int);
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44 #endif
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45
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46 #if defined(_AIX)
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47 #pragma alloca
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48 #endif
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49
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50 #ifdef BROKEN_SUNOS_HEADERS
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51 extern void * memset (void *, int, int);
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52 extern int strcasecmp (char *, char *);
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53 extern int fprintf (FILE *, CONST char *, ...);
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54 #endif
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55
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56 #ifdef NEED_LUCID
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57 #include "lwlib-Xlw.h"
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58 #endif
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59 #ifdef NEED_MOTIF
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60 #include "lwlib-Xm.h"
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61 #endif
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62 #ifdef NEED_ATHENA
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63 #include "lwlib-Xaw.h"
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64 #endif
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65
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66 /* #### Does a check need to be put back in here to make sure we have
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67 sufficient defines to function properly or are the checks in the
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68 makefile sufficient? */
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69
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70 /* List of all widgets managed by the library. Note that each "widget"
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71 listed here may actually be a tree of widgets; for example, a
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72 single entry here might represent a single menubar or popup menu,
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73 each of which might be implemented with a tree of widgets.
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74 */
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75 static widget_info *all_widget_info = NULL;
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76
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77
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78 /* Forward declarations */
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79 static void
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80 instantiate_widget_instance (widget_instance *instance);
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81
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82
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83 /* utility functions for widget_instance and widget_info */
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84 static char *
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85 safe_strdup (CONST char *s)
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86 {
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87 char *result;
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88 if (! s) return 0;
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89 result = (char *) malloc (strlen (s) + 1);
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90 if (! result)
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91 return 0;
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92 strcpy (result, s);
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93 return result;
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94 }
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95
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96 static void
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97 safe_free_str (char *s)
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98 {
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99 if (s) free (s);
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100 }
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101
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102 static widget_value *widget_value_free_list = 0;
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103
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104 widget_value *
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105 malloc_widget_value (void)
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106 {
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107 widget_value *wv;
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108 if (widget_value_free_list)
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109 {
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110 wv = widget_value_free_list;
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111 widget_value_free_list = wv->free_list;
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112 wv->free_list = 0;
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113 }
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114 else
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115 {
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116 wv = (widget_value *) malloc (sizeof (widget_value));
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117 }
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118 if (wv)
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119 {
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120 memset (wv, 0, sizeof (widget_value));
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121 }
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122 return wv;
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123 }
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124
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125 /* this is analogous to free(). It frees only what was allocated
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126 by malloc_widget_value(), and no substructures.
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127 */
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128 void
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129 free_widget_value (widget_value *wv)
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130 {
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131 if (wv->free_list)
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132 abort ();
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133 wv->free_list = widget_value_free_list;
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134 widget_value_free_list = wv;
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135 }
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136
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137 static void free_widget_value_tree (widget_value *wv);
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138
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139 static void
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140 free_widget_value_contents (widget_value *wv)
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141 {
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142 if (wv->name) free (wv->name);
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143 if (wv->value) free (wv->value);
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144 if (wv->key) free (wv->key);
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145
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146 /* #### - all of this 0xDEADBEEF stuff should be unnecessary
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147 in production code... it should be conditionalized. */
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148 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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149
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150 if (wv->toolkit_data && wv->free_toolkit_data)
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151 {
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152 free (wv->toolkit_data);
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153 wv->toolkit_data = (void *) 0xDEADBEEF;
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154 }
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155 #ifdef NEED_SCROLLBARS
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156 if (wv->scrollbar_data)
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157 {
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158 free (wv->scrollbar_data);
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159 wv->scrollbar_data = NULL;
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160 }
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161 #endif
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162 if (wv->contents && (wv->contents != (widget_value*)1))
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163 {
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164 free_widget_value_tree (wv->contents);
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165 wv->contents = (widget_value *) 0xDEADBEEF;
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166 }
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167 if (wv->next)
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168 {
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169 free_widget_value_tree (wv->next);
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170 wv->next = (widget_value *) 0xDEADBEEF;
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171 }
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172 }
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173
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174 static void
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175 free_widget_value_tree (widget_value *wv)
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176 {
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177 if (!wv)
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178 return;
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179
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180 free_widget_value_contents (wv);
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181 free_widget_value (wv);
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182 }
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183
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184 #ifdef NEED_SCROLLBARS
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185
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186 static void
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187 copy_scrollbar_values (widget_value *val, widget_value *copy)
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188 {
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189 if (!copy->scrollbar_data)
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190 copy->scrollbar_data =
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191 (scrollbar_values *) malloc (sizeof (scrollbar_values));
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192
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193 if (val->scrollbar_data)
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194 *copy->scrollbar_data = *val->scrollbar_data;
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195 else
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196 memset (copy->scrollbar_data, 0, sizeof (scrollbar_values));
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197 }
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198
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199 /*
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200 * Return true if old->scrollbar_data were not equivalent
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201 * to new->scrollbar_data.
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202 */
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203 static Boolean
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204 merge_scrollbar_values (widget_value *old, widget_value *new)
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205 {
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206 Boolean changed = False;
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207
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208 if (new->scrollbar_data && !old->scrollbar_data)
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209 {
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210 copy_scrollbar_values (new, old);
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211 changed = True;
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212 }
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213 else if (!new->scrollbar_data && old->scrollbar_data)
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214 {
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215 free (old->scrollbar_data);
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216 old->scrollbar_data = NULL;
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217 }
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218 else if (new->scrollbar_data && old->scrollbar_data)
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219 {
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220 scrollbar_values *old_sb = old->scrollbar_data;
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221 scrollbar_values *new_sb = new->scrollbar_data;
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222 #define FROB(field) if (old_sb->field != new_sb->field) changed = True
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223 FROB (line_increment);
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224 FROB (page_increment);
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225 FROB (minimum);
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226 FROB (maximum);
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227 FROB (slider_size);
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228 FROB (slider_position);
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229 FROB (scrollbar_width);
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230 FROB (scrollbar_height);
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231 FROB (scrollbar_x);
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232 FROB (scrollbar_y);
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233 #undef FROB
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234 *old_sb = *new_sb;
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235 }
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236
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237 return changed;
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238 }
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239
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240 #endif /* NEED_SCROLLBARS */
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241
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242 /* Make a complete copy of a widget_value tree. Store CHANGE into
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243 the widget_value tree's `change' field. */
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244
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245 static widget_value *
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246 copy_widget_value_tree (widget_value *val, change_type change)
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247 {
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248 widget_value *copy;
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249
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250 if (!val)
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251 return NULL;
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252 if (val == (widget_value *) 1)
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253 return val;
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254
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255 copy = malloc_widget_value ();
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256 if (copy)
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257 {
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258 /* #### - don't seg fault *here* if out of memory. Menus will be
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259 truncated inexplicably. */
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260 copy->type = val->type;
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261 copy->name = safe_strdup (val->name);
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262 copy->value = safe_strdup (val->value);
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263 copy->key = safe_strdup (val->key);
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264 copy->enabled = val->enabled;
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265 copy->selected = val->selected;
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266 copy->edited = False;
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267 copy->change = change;
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268 copy->contents = copy_widget_value_tree (val->contents, change);
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269 copy->call_data = val->call_data;
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270 copy->next = copy_widget_value_tree (val->next, change);
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271 copy->toolkit_data = NULL;
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272 copy->free_toolkit_data = False;
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273 #ifdef NEED_SCROLLBARS
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274 copy_scrollbar_values (val, copy);
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275 #endif
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276 }
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277 return copy;
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278 }
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279
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280 /* This function is used to implement incremental menu construction. */
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281
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282 widget_value *
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283 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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284 {
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285 widget_value *copy;
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286
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287 if (!node || !newtree)
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288 abort ();
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289
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290 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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291
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292 free_widget_value_contents (node);
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293 *node = *copy;
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294 free_widget_value (copy); /* free the node, but not its contents. */
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295 return node;
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296 }
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297
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298 static widget_info *
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299 allocate_widget_info (CONST char *type, CONST char *name,
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300 LWLIB_ID id, widget_value *val,
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301 lw_callback pre_activate_cb, lw_callback selection_cb,
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302 lw_callback post_activate_cb)
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303 {
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304 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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305 info->type = safe_strdup (type);
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306 info->name = safe_strdup (name);
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307 info->id = id;
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308 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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309 info->busy = False;
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310 info->pre_activate_cb = pre_activate_cb;
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311 info->selection_cb = selection_cb;
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312 info->post_activate_cb = post_activate_cb;
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313 info->instances = NULL;
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314
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315 info->next = all_widget_info;
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316 all_widget_info = info;
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317
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318 return info;
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319 }
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320
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321 static void
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322 free_widget_info (widget_info *info)
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323 {
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324 safe_free_str (info->type);
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325 safe_free_str (info->name);
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326 free_widget_value_tree (info->val);
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327 memset ((void*)info, 0xDEADBEEF, sizeof (widget_info));
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328 free (info);
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329 }
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330
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331 static void
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332 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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333 {
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334 widget_instance *instance = (widget_instance*)closure;
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335
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336 /* be very conservative */
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337 if (instance->widget == widget)
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338 instance->widget = NULL;
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339 }
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340
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341 static widget_instance *
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342 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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343 {
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344 widget_instance *instance =
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345 (widget_instance *) malloc (sizeof (widget_instance));
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346 instance->parent = parent;
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347 instance->pop_up_p = pop_up_p;
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348 instance->info = info;
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349 instance->next = info->instances;
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350 info->instances = instance;
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351
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352 instantiate_widget_instance (instance);
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353
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354 XtAddCallback (instance->widget, XtNdestroyCallback,
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355 mark_widget_destroyed, (XtPointer)instance);
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356 return instance;
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357 }
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358
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359 static void
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360 free_widget_instance (widget_instance *instance)
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361 {
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362 memset ((void *) instance, 0xDEADBEEF, sizeof (widget_instance));
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363 free (instance);
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364 }
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365
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366 static widget_info *
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367 get_widget_info (LWLIB_ID id, Boolean remove_p)
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368 {
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369 widget_info *info;
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370 widget_info *prev;
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371 for (prev = NULL, info = all_widget_info;
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372 info;
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373 prev = info, info = info->next)
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374 if (info->id == id)
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375 {
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376 if (remove_p)
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377 {
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378 if (prev)
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379 prev->next = info->next;
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380 else
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381 all_widget_info = info->next;
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382 }
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383 return info;
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384 }
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385 return NULL;
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386 }
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387
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388 /* Internal function used by the library dependent implementation to get the
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389 widget_value for a given widget in an instance */
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390 widget_info *
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391 lw_get_widget_info (LWLIB_ID id)
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392 {
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393 return get_widget_info (id, 0);
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394 }
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395
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396 static int
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397 map_widget_values (widget_value *value, 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 int retval = 0;
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402
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403 if (value->contents)
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404 retval = map_widget_values (value->contents, mapfunc, closure);
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405 if (retval)
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406 return retval;
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407
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408 if (value->next)
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409 retval = map_widget_values (value->next, mapfunc, closure);
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410 if (retval)
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411 return retval;
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412
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413 return (mapfunc) (value, closure);
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414 }
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415
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416 int
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417 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
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418 void *closure),
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419 void *closure)
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420 {
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421 widget_info *info = get_widget_info (id, 0);
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422
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423 if (!info)
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424 abort ();
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425
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426 if (info->val)
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427 return map_widget_values (info->val, mapfunc, closure);
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428 return 0;
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429 }
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430
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431 static widget_instance *
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|
|
432 get_widget_instance (Widget widget, Boolean remove_p)
|
|
|
433 {
|
|
|
434 widget_info *info;
|
|
|
435 widget_instance *instance;
|
|
|
436 widget_instance *prev;
|
|
|
437 for (info = all_widget_info; info; info = info->next)
|
|
|
438 for (prev = NULL, instance = info->instances;
|
|
|
439 instance;
|
|
|
440 prev = instance, instance = instance->next)
|
|
|
441 if (instance->widget == widget)
|
|
|
442 {
|
|
|
443 if (remove_p)
|
|
|
444 {
|
|
|
445 if (prev)
|
|
|
446 prev->next = instance->next;
|
|
|
447 else
|
|
|
448 info->instances = instance->next;
|
|
|
449 }
|
|
|
450 return instance;
|
|
|
451 }
|
|
|
452 return (widget_instance *) 0;
|
|
|
453 }
|
|
|
454
|
|
|
455 static widget_instance*
|
|
|
456 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
457 {
|
|
|
458 widget_info *info = get_widget_info (id, False);
|
|
|
459 widget_instance *instance;
|
|
|
460
|
|
|
461 if (info)
|
|
|
462 for (instance = info->instances; instance; instance = instance->next)
|
|
|
463 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
464 return instance;
|
|
|
465
|
|
|
466 return NULL;
|
|
|
467 }
|
|
|
468
|
|
|
469
|
|
|
470 /* utility function for widget_value */
|
|
|
471 static Boolean
|
|
|
472 safe_strcmp (CONST char *s1, CONST char *s2)
|
|
|
473 {
|
|
|
474 if (!!s1 ^ !!s2) return True;
|
|
|
475 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
476 }
|
|
|
477
|
|
2
|
478 static change_type
|
|
|
479 max (change_type i1, change_type i2)
|
|
0
|
480 {
|
|
2
|
481 return (int)i1 > (int)i2 ? i1 : i2;
|
|
0
|
482 }
|
|
|
483
|
|
|
484
|
|
|
485 #if 0
|
|
|
486 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
487 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
488 name, \
|
|
|
489 (oc == NO_CHANGE ? "none" : \
|
|
|
490 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
491 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
492 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
493 oc, \
|
|
|
494 (nc == NO_CHANGE ? "none" : \
|
|
|
495 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
496 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
497 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
498 nc, desc, a1, a2)
|
|
|
499 #else
|
|
|
500 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
501 #endif
|
|
|
502
|
|
|
503
|
|
|
504 static widget_value *
|
|
|
505 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
506 {
|
|
|
507 change_type change;
|
|
|
508 widget_value *merged_next;
|
|
|
509 widget_value *merged_contents;
|
|
|
510
|
|
|
511 if (!val1)
|
|
|
512 {
|
|
|
513 if (val2)
|
|
|
514 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
515 else
|
|
|
516 return NULL;
|
|
|
517 }
|
|
|
518 if (!val2)
|
|
|
519 {
|
|
|
520 free_widget_value_tree (val1);
|
|
|
521 return NULL;
|
|
|
522 }
|
|
|
523
|
|
|
524 change = NO_CHANGE;
|
|
|
525
|
|
|
526 if (val1->type != val2->type)
|
|
|
527 {
|
|
|
528 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
529 val1->type, val2->type);
|
|
|
530 change = max (change, STRUCTURAL_CHANGE);
|
|
|
531 val1->type = val2->type;
|
|
|
532 }
|
|
|
533 if (safe_strcmp (val1->name, val2->name))
|
|
|
534 {
|
|
|
535 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
536 val1->name, val2->name);
|
|
|
537 change = max (change, STRUCTURAL_CHANGE);
|
|
|
538 safe_free_str (val1->name);
|
|
|
539 val1->name = safe_strdup (val2->name);
|
|
|
540 }
|
|
|
541 if (safe_strcmp (val1->value, val2->value))
|
|
|
542 {
|
|
|
543 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
544 val1->value, val2->value);
|
|
|
545 change = max (change, VISIBLE_CHANGE);
|
|
|
546 safe_free_str (val1->value);
|
|
|
547 val1->value = safe_strdup (val2->value);
|
|
|
548 }
|
|
|
549 if (safe_strcmp (val1->key, val2->key))
|
|
|
550 {
|
|
|
551 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
552 val1->key, val2->key);
|
|
|
553 change = max (change, VISIBLE_CHANGE);
|
|
|
554 safe_free_str (val1->key);
|
|
|
555 val1->key = safe_strdup (val2->key);
|
|
|
556 }
|
|
|
557 if (val1->enabled != val2->enabled)
|
|
|
558 {
|
|
|
559 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
560 val1->enabled, val2->enabled);
|
|
|
561 change = max (change, VISIBLE_CHANGE);
|
|
|
562 val1->enabled = val2->enabled;
|
|
|
563 }
|
|
|
564 if (val1->selected != val2->selected)
|
|
|
565 {
|
|
|
566 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
567 val1->selected, val2->selected);
|
|
|
568 change = max (change, VISIBLE_CHANGE);
|
|
|
569 val1->selected = val2->selected;
|
|
|
570 }
|
|
|
571 if (val1->call_data != val2->call_data)
|
|
|
572 {
|
|
|
573 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
574 val1->call_data, val2->call_data);
|
|
|
575 change = max (change, INVISIBLE_CHANGE);
|
|
|
576 val1->call_data = val2->call_data;
|
|
|
577 }
|
|
|
578 #ifdef NEED_SCROLLBARS
|
|
|
579 if (merge_scrollbar_values (val1, val2))
|
|
|
580 {
|
|
|
581 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
582 change = max (change, VISIBLE_CHANGE);
|
|
|
583 }
|
|
|
584 #endif
|
|
|
585
|
|
|
586 if (level > 0)
|
|
|
587 {
|
|
|
588 merged_contents =
|
|
|
589 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
590
|
|
|
591 if (val1->contents && !merged_contents)
|
|
|
592 {
|
|
|
593 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
594 0, 0);
|
|
|
595 change = max (change, INVISIBLE_CHANGE);
|
|
|
596 }
|
|
|
597 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
598 {
|
|
|
599 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
600 0, 0);
|
|
|
601 change = max (change, INVISIBLE_CHANGE);
|
|
|
602 }
|
|
|
603
|
|
|
604 val1->contents = merged_contents;
|
|
|
605 }
|
|
|
606
|
|
|
607 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
608
|
|
|
609 if (val1->next && !merged_next)
|
|
|
610 {
|
|
|
611 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
612 0, 0);
|
|
|
613 change = max (change, STRUCTURAL_CHANGE);
|
|
|
614 }
|
|
|
615 else if (merged_next)
|
|
|
616 {
|
|
|
617 if (merged_next->change)
|
|
|
618 {
|
|
|
619 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
620 0, 0);
|
|
|
621 }
|
|
|
622 change = max (change, merged_next->change);
|
|
|
623 }
|
|
|
624
|
|
|
625 val1->next = merged_next;
|
|
|
626
|
|
|
627 val1->change = change;
|
|
|
628
|
|
|
629 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
630 {
|
|
|
631 if (val1->free_toolkit_data)
|
|
|
632 free (val1->toolkit_data);
|
|
|
633 val1->toolkit_data = NULL;
|
|
|
634 }
|
|
|
635
|
|
|
636 return val1;
|
|
|
637 }
|
|
|
638
|
|
|
639
|
|
|
640 /* modifying the widgets */
|
|
|
641 static Widget
|
|
|
642 name_to_widget (widget_instance *instance, CONST char *name)
|
|
|
643 {
|
|
|
644 Widget widget = NULL;
|
|
|
645
|
|
|
646 if (!instance->widget)
|
|
|
647 return NULL;
|
|
|
648
|
|
|
649 if (!strcmp (XtName (instance->widget), name))
|
|
|
650 widget = instance->widget;
|
|
|
651 else
|
|
|
652 {
|
|
|
653 int length = strlen (name) + 2;
|
|
|
654 char *real_name = (char *) alloca (length);
|
|
|
655 real_name [0] = '*';
|
|
|
656 strcpy (real_name + 1, name);
|
|
|
657
|
|
|
658 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
659 }
|
|
|
660 return widget;
|
|
|
661 }
|
|
|
662
|
|
|
663 static void
|
|
|
664 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
665 {
|
|
|
666 Widget widget = name_to_widget (instance, val->name);
|
|
|
667
|
|
|
668 if (widget)
|
|
|
669 {
|
|
|
670 #ifdef NEED_LUCID
|
|
|
671 if (lw_lucid_widget_p (instance->widget))
|
|
|
672 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
673 #endif
|
|
|
674 #ifdef NEED_MOTIF
|
|
|
675 if (lw_motif_widget_p (instance->widget))
|
|
|
676 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
677 #endif
|
|
|
678 #ifdef NEED_ATHENA
|
|
|
679 if (lw_xaw_widget_p (instance->widget))
|
|
|
680 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
681 #endif
|
|
|
682 }
|
|
|
683 }
|
|
|
684
|
|
|
685 static void
|
|
|
686 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
687 {
|
|
|
688 widget_value *val;
|
|
|
689
|
|
|
690 if (!instance->widget)
|
|
|
691 /* the widget was destroyed */
|
|
|
692 return;
|
|
|
693
|
|
|
694 for (val = instance->info->val; val; val = val->next)
|
|
|
695 if (val->change != NO_CHANGE)
|
|
|
696 set_one_value (instance, val, deep_p);
|
|
|
697 }
|
|
|
698
|
|
|
699 static void
|
|
|
700 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
701 {
|
|
|
702 widget_instance *instance;
|
|
|
703 widget_value *val;
|
|
|
704
|
|
|
705 for (instance = info->instances; instance; instance = instance->next)
|
|
|
706 update_one_widget_instance (instance, deep_p);
|
|
|
707
|
|
|
708 for (val = info->val; val; val = val->next)
|
|
|
709 val->change = NO_CHANGE;
|
|
|
710 }
|
|
|
711
|
|
|
712 void
|
|
|
713 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
714 {
|
|
|
715 widget_info *info = get_widget_info (id, False);
|
|
|
716 widget_value *new_val;
|
|
|
717 widget_value *next_new_val;
|
|
|
718 widget_value *cur;
|
|
|
719 widget_value *prev;
|
|
|
720 widget_value *next;
|
|
|
721 int found;
|
|
|
722
|
|
|
723 if (!info)
|
|
|
724 return;
|
|
|
725
|
|
|
726 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
727 {
|
|
|
728 next_new_val = new_val->next;
|
|
|
729 new_val->next = NULL;
|
|
|
730 found = False;
|
|
|
731 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
732 if (!strcmp (cur->name, new_val->name))
|
|
|
733 {
|
|
|
734 found = True;
|
|
|
735 next = cur->next;
|
|
|
736 cur->next = NULL;
|
|
|
737 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
738 if (prev)
|
|
|
739 prev->next = cur ? cur : next;
|
|
|
740 else
|
|
|
741 info->val = cur ? cur : next;
|
|
|
742 if (cur)
|
|
|
743 cur->next = next;
|
|
|
744 break;
|
|
|
745 }
|
|
|
746 if (!found)
|
|
|
747 {
|
|
|
748 /* Could not find it, add it */
|
|
|
749 if (prev)
|
|
|
750 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
751 else
|
|
|
752 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
753 }
|
|
|
754 new_val->next = next_new_val;
|
|
|
755 }
|
|
|
756
|
|
|
757 update_all_widget_values (info, deep_p);
|
|
|
758 }
|
|
|
759
|
|
|
760
|
|
|
761 /* creating the widgets */
|
|
|
762
|
|
|
763 static void
|
|
|
764 initialize_widget_instance (widget_instance *instance)
|
|
|
765 {
|
|
|
766 widget_value *val;
|
|
|
767
|
|
|
768 for (val = instance->info->val; val; val = val->next)
|
|
|
769 val->change = STRUCTURAL_CHANGE;
|
|
|
770
|
|
|
771 update_one_widget_instance (instance, True);
|
|
|
772
|
|
|
773 for (val = instance->info->val; val; val = val->next)
|
|
|
774 val->change = NO_CHANGE;
|
|
|
775 }
|
|
|
776
|
|
|
777
|
|
|
778 static widget_creation_function
|
|
|
779 find_in_table (CONST char *type, widget_creation_entry *table)
|
|
|
780 {
|
|
|
781 widget_creation_entry *cur;
|
|
|
782 for (cur = table; cur->type; cur++)
|
|
|
783 if (!strcasecmp (type, cur->type))
|
|
|
784 return cur->function;
|
|
|
785 return NULL;
|
|
|
786 }
|
|
|
787
|
|
|
788 static Boolean
|
|
|
789 dialog_spec_p (CONST char *name)
|
|
|
790 {
|
|
|
791 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
792 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
793 if (!name)
|
|
|
794 return False;
|
|
|
795
|
|
|
796 switch (name [0])
|
|
|
797 {
|
|
|
798 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
799 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
800 if (name [1] >= '0' && name [1] <= '9')
|
|
|
801 {
|
|
|
802 if (name [2] != 'B' && name [2] != 'b')
|
|
|
803 return False;
|
|
|
804 if (!name [3])
|
|
|
805 return True;
|
|
|
806 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
807 return True;
|
|
|
808 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
809 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
810 return True;
|
|
|
811 return False;
|
|
|
812 }
|
|
|
813 else
|
|
|
814 return False;
|
|
|
815
|
|
|
816 default:
|
|
|
817 return False;
|
|
|
818 }
|
|
|
819 }
|
|
|
820
|
|
|
821 static void
|
|
|
822 instantiate_widget_instance (widget_instance *instance)
|
|
|
823 {
|
|
|
824 widget_creation_function function = NULL;
|
|
|
825
|
|
|
826 #ifdef NEED_LUCID
|
|
|
827 if (!function)
|
|
|
828 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
829 #endif
|
|
|
830 #ifdef NEED_MOTIF
|
|
|
831 if (!function)
|
|
|
832 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
833 #endif
|
|
|
834 #ifdef NEED_ATHENA
|
|
|
835 if (!function)
|
|
|
836 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
837 #endif
|
|
|
838
|
|
|
839 if (!function)
|
|
|
840 {
|
|
|
841 if (dialog_spec_p (instance->info->type))
|
|
|
842 {
|
|
|
843 #ifdef DIALOGS_MOTIF
|
|
|
844 if (!function)
|
|
|
845 function = xm_create_dialog;
|
|
|
846 #endif
|
|
|
847 #ifdef DIALOGS_ATHENA
|
|
|
848 if (!function)
|
|
|
849 function = xaw_create_dialog;
|
|
|
850 #endif
|
|
|
851 #ifdef DIALOGS_LUCID
|
|
|
852 /* not yet (not ever?) */
|
|
|
853 #endif
|
|
|
854 }
|
|
|
855 }
|
|
|
856
|
|
|
857 if (!function)
|
|
|
858 {
|
|
|
859 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
860 instance->info->type);
|
|
|
861 abort ();
|
|
|
862 }
|
|
|
863
|
|
|
864 instance->widget = (*function) (instance);
|
|
|
865
|
|
|
866 if (!instance->widget)
|
|
|
867 abort ();
|
|
|
868
|
|
|
869 /* XtRealizeWidget (instance->widget);*/
|
|
|
870 }
|
|
|
871
|
|
|
872 void
|
|
|
873 lw_register_widget (CONST char *type, CONST char *name,
|
|
|
874 LWLIB_ID id, widget_value *val,
|
|
|
875 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
876 lw_callback post_activate_cb)
|
|
|
877 {
|
|
|
878 if (!get_widget_info (id, False))
|
|
|
879 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
880 post_activate_cb);
|
|
|
881 }
|
|
|
882
|
|
|
883 Widget
|
|
|
884 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
885 {
|
|
|
886 widget_instance *instance;
|
|
|
887
|
|
|
888 instance = find_instance (id, parent, pop_up_p);
|
|
|
889 return instance ? instance->widget : NULL;
|
|
|
890 }
|
|
|
891
|
|
|
892 Widget
|
|
|
893 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
894 {
|
|
|
895 widget_instance *instance;
|
|
|
896 widget_info *info;
|
|
|
897
|
|
|
898 instance = find_instance (id, parent, pop_up_p);
|
|
|
899 if (!instance)
|
|
|
900 {
|
|
|
901 info = get_widget_info (id, False);
|
|
|
902 if (!info)
|
|
|
903 return NULL;
|
|
|
904 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
905 initialize_widget_instance (instance);
|
|
|
906 }
|
|
|
907 if (!instance->widget)
|
|
|
908 abort ();
|
|
|
909 return instance->widget;
|
|
|
910 }
|
|
|
911
|
|
|
912 Widget
|
|
|
913 lw_create_widget (CONST char *type, CONST char *name,
|
|
|
914 LWLIB_ID id, widget_value *val,
|
|
|
915 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
916 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
917 {
|
|
|
918 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
919 post_activate_cb);
|
|
|
920 return lw_make_widget (id, parent, pop_up_p);
|
|
|
921 }
|
|
|
922
|
|
|
923
|
|
|
924 /* destroying the widgets */
|
|
|
925 static void
|
|
|
926 destroy_one_instance (widget_instance *instance)
|
|
|
927 {
|
|
|
928 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
929 dereference the instance object (to set its widget slot to 0, since the
|
|
|
930 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
931 about the fact that its widget is dead too.
|
|
|
932
|
|
|
933 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
934 not have been run until arbitrarily long after the instance was freed.
|
|
|
935 */
|
|
|
936 if (instance->widget)
|
|
|
937 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
938 mark_widget_destroyed, (XtPointer)instance);
|
|
|
939
|
|
|
940 if (instance->widget)
|
|
|
941 {
|
|
|
942 /* The else are pretty tricky here, including the empty statement
|
|
|
943 at the end because it would be very bad to destroy a widget
|
|
|
944 twice. */
|
|
|
945 #ifdef NEED_LUCID
|
|
|
946 if (lw_lucid_widget_p (instance->widget))
|
|
|
947 xlw_destroy_instance (instance);
|
|
|
948 else
|
|
|
949 #endif
|
|
|
950 #ifdef NEED_MOTIF
|
|
|
951 if (lw_motif_widget_p (instance->widget))
|
|
|
952 xm_destroy_instance (instance);
|
|
|
953 else
|
|
|
954 #endif
|
|
|
955 #ifdef NEED_ATHENA
|
|
|
956 if (lw_xaw_widget_p (instance->widget))
|
|
|
957 xaw_destroy_instance (instance);
|
|
|
958 else
|
|
|
959 #endif
|
|
|
960 {
|
|
|
961 /* do not remove the empty statement */
|
|
|
962 ;
|
|
|
963 }
|
|
|
964 }
|
|
|
965
|
|
|
966 free_widget_instance (instance);
|
|
|
967 }
|
|
|
968
|
|
|
969 void
|
|
|
970 lw_destroy_widget (Widget w)
|
|
|
971 {
|
|
|
972 widget_instance *instance = get_widget_instance (w, True);
|
|
|
973
|
|
|
974 if (instance)
|
|
|
975 {
|
|
|
976 widget_info *info = instance->info;
|
|
|
977 /* instance has already been removed from the list; free it */
|
|
|
978 destroy_one_instance (instance);
|
|
|
979 /* if there are no instances left, free the info too */
|
|
|
980 if (!info->instances)
|
|
|
981 lw_destroy_all_widgets (info->id);
|
|
|
982 }
|
|
|
983 }
|
|
|
984
|
|
|
985 void
|
|
|
986 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
987 {
|
|
|
988 widget_info *info = get_widget_info (id, True);
|
|
|
989 widget_instance *instance;
|
|
|
990 widget_instance *next;
|
|
|
991
|
|
|
992 if (info)
|
|
|
993 {
|
|
|
994 for (instance = info->instances; instance; )
|
|
|
995 {
|
|
|
996 next = instance->next;
|
|
|
997 destroy_one_instance (instance);
|
|
|
998 instance = next;
|
|
|
999 }
|
|
|
1000 free_widget_info (info);
|
|
|
1001 }
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 void
|
|
|
1005 lw_destroy_everything ()
|
|
|
1006 {
|
|
|
1007 while (all_widget_info)
|
|
|
1008 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 void
|
|
|
1012 lw_destroy_all_pop_ups ()
|
|
|
1013 {
|
|
|
1014 widget_info *info;
|
|
|
1015 widget_info *next;
|
|
|
1016 widget_instance *instance;
|
|
|
1017
|
|
|
1018 for (info = all_widget_info; info; info = next)
|
|
|
1019 {
|
|
|
1020 next = info->next;
|
|
|
1021 instance = info->instances;
|
|
|
1022 if (instance && instance->pop_up_p)
|
|
|
1023 lw_destroy_all_widgets (info->id);
|
|
|
1024 }
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 Widget
|
|
|
1028 lw_raise_all_pop_up_widgets (void)
|
|
|
1029 {
|
|
|
1030 widget_info *info;
|
|
|
1031 widget_instance *instance;
|
|
|
1032 Widget result = NULL;
|
|
|
1033
|
|
|
1034 for (info = all_widget_info; info; info = info->next)
|
|
|
1035 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1036 if (instance->pop_up_p)
|
|
|
1037 {
|
|
|
1038 Widget widget = instance->widget;
|
|
|
1039 if (widget)
|
|
|
1040 {
|
|
|
1041 if (XtIsManaged (widget)
|
|
|
1042 #ifdef NEED_MOTIF
|
|
|
1043 /* What a complete load of crap!!!!
|
|
|
1044 When a dialogShell is on the screen, it is not managed!
|
|
|
1045 */
|
|
|
1046 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1047 XtIsManaged (first_child (widget)))
|
|
|
1048 #endif
|
|
|
1049 )
|
|
|
1050 {
|
|
|
1051 if (!result)
|
|
|
1052 result = widget;
|
|
|
1053 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1054 }
|
|
|
1055 }
|
|
|
1056 }
|
|
|
1057 return result;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 static void
|
|
|
1061 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1062 {
|
|
|
1063 widget_info *info = get_widget_info (id, False);
|
|
|
1064 widget_instance *instance;
|
|
|
1065
|
|
|
1066 if (info)
|
|
|
1067 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1068 if (instance->pop_up_p && instance->widget)
|
|
|
1069 {
|
|
|
1070 #ifdef NEED_LUCID
|
|
|
1071 if (lw_lucid_widget_p (instance->widget))
|
|
|
1072 {
|
|
|
1073 XtRealizeWidget (instance->widget);
|
|
|
1074 xlw_pop_instance (instance, up);
|
|
|
1075 }
|
|
|
1076 #endif
|
|
|
1077 #ifdef NEED_MOTIF
|
|
|
1078 if (lw_motif_widget_p (instance->widget))
|
|
|
1079 {
|
|
|
1080 XtRealizeWidget (instance->widget);
|
|
|
1081 xm_pop_instance (instance, up);
|
|
|
1082 }
|
|
|
1083 #endif
|
|
|
1084 #ifdef NEED_ATHENA
|
|
|
1085 if (lw_xaw_widget_p (instance->widget))
|
|
|
1086 {
|
|
|
1087 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1088 XtRealizeWidget (instance->widget);
|
|
|
1089 xaw_pop_instance (instance, up);
|
|
|
1090 }
|
|
|
1091 #endif
|
|
|
1092 }
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 void
|
|
|
1096 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1097 {
|
|
|
1098 lw_pop_all_widgets (id, True);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 void
|
|
|
1102 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1103 {
|
|
|
1104 lw_pop_all_widgets (id, False);
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 void
|
|
|
1108 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1109 {
|
|
|
1110 #ifdef MENUBARS_LUCID
|
|
|
1111 if (lw_lucid_widget_p (widget))
|
|
|
1112 xlw_popup_menu (widget, event);
|
|
|
1113 #endif
|
|
|
1114 #ifdef MENUBARS_MOTIF
|
|
|
1115 if (lw_motif_widget_p (widget))
|
|
|
1116 xm_popup_menu (widget, event);
|
|
|
1117 #endif
|
|
|
1118 #ifdef MENUBARS_ATHENA
|
|
|
1119 if (lw_xaw_widget_p (widget))
|
|
|
1120 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1121 #endif
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 /* get the values back */
|
|
|
1125 static Boolean
|
|
|
1126 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1127 {
|
|
|
1128 Widget widget = name_to_widget (instance, val->name);
|
|
|
1129
|
|
|
1130 if (widget)
|
|
|
1131 {
|
|
|
1132 #ifdef NEED_LUCID
|
|
|
1133 if (lw_lucid_widget_p (instance->widget))
|
|
|
1134 xlw_update_one_value (instance, widget, val);
|
|
|
1135 #endif
|
|
|
1136 #ifdef NEED_MOTIF
|
|
|
1137 if (lw_motif_widget_p (instance->widget))
|
|
|
1138 xm_update_one_value (instance, widget, val);
|
|
|
1139 #endif
|
|
|
1140 #ifdef NEED_ATHENA
|
|
|
1141 if (lw_xaw_widget_p (instance->widget))
|
|
|
1142 xaw_update_one_value (instance, widget, val);
|
|
|
1143 #endif
|
|
|
1144 return True;
|
|
|
1145 }
|
|
|
1146 else
|
|
|
1147 return False;
|
|
|
1148 }
|
|
|
1149
|
|
|
1150 Boolean
|
|
|
1151 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1152 {
|
|
|
1153 widget_info *info = get_widget_info (id, False);
|
|
|
1154 widget_instance *instance;
|
|
|
1155 widget_value *val;
|
|
|
1156 Boolean result = False;
|
|
|
1157
|
|
|
1158 if (!info)
|
|
|
1159 return False;
|
|
|
1160
|
|
|
1161 instance = info->instances;
|
|
|
1162 if (!instance)
|
|
|
1163 return False;
|
|
|
1164
|
|
|
1165 for (val = val_out; val; val = val->next)
|
|
|
1166 if (get_one_value (instance, val))
|
|
|
1167 result = True;
|
|
|
1168
|
|
|
1169 return result;
|
|
|
1170 }
|
|
|
1171
|
|
|
1172 widget_value*
|
|
|
1173 lw_get_all_values (LWLIB_ID id)
|
|
|
1174 {
|
|
|
1175 widget_info *info = get_widget_info (id, False);
|
|
|
1176 widget_value *val = info->val;
|
|
|
1177 if (lw_get_some_values (id, val))
|
|
|
1178 return val;
|
|
|
1179 else
|
|
|
1180 return NULL;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 /* internal function used by the library dependent implementation to get the
|
|
|
1184 widget_value for a given widget in an instance */
|
|
|
1185 widget_value*
|
|
|
1186 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1187 {
|
|
|
1188 char *name = XtName (w);
|
|
|
1189 widget_value *cur;
|
|
|
1190 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1191 if (!strcmp (cur->name, name))
|
|
|
1192 return cur;
|
|
|
1193 return NULL;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196
|
|
|
1197 /* update other instances value when one thing changed */
|
|
|
1198 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1199 modified to update other instances of the widgets. Closure should be the
|
|
|
1200 widget_instance. */
|
|
|
1201 void
|
|
|
1202 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1203 XtPointer call_data)
|
|
|
1204 {
|
|
|
1205 /* To forbid recursive calls */
|
|
|
1206 static Boolean updating;
|
|
|
1207
|
|
|
1208 widget_instance *instance = (widget_instance*)closure;
|
|
|
1209 char *name = XtName (widget);
|
|
|
1210 widget_info *info;
|
|
|
1211 widget_instance *cur;
|
|
|
1212 widget_value *val;
|
|
|
1213
|
|
|
1214 /* never recurse as this could cause infinite recursions. */
|
|
|
1215 if (updating)
|
|
|
1216 return;
|
|
|
1217
|
|
|
1218 /* protect against the widget being destroyed */
|
|
|
1219 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1220 return;
|
|
|
1221
|
|
|
1222 /* Return immediately if there are no other instances */
|
|
|
1223 info = instance->info;
|
|
|
1224 if (!info->instances->next)
|
|
|
1225 return;
|
|
|
1226
|
|
|
1227 updating = True;
|
|
|
1228
|
|
|
1229 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1230
|
|
|
1231 if (val && get_one_value (instance, val))
|
|
|
1232 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1233 if (cur != instance)
|
|
|
1234 set_one_value (cur, val, True);
|
|
|
1235
|
|
|
1236 updating = False;
|
|
|
1237 }
|
|
|
1238
|
|
|
1239
|
|
|
1240
|
|
|
1241 /* get the id */
|
|
|
1242
|
|
|
1243 LWLIB_ID
|
|
|
1244 lw_get_widget_id (Widget w)
|
|
|
1245 {
|
|
|
1246 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1247
|
|
|
1248 return instance ? instance->info->id : 0;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251
|
|
|
1252 /* set the keyboard focus */
|
|
|
1253 void
|
|
|
1254 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1255 {
|
|
78
|
1256 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1257 /* This loses with Lesstif v0.75a */
|
|
0
|
1258 xm_set_keyboard_focus (parent, w);
|
|
|
1259 #else
|
|
|
1260 XtSetKeyboardFocus (parent, w);
|
|
|
1261 #endif
|
|
|
1262 }
|
|
|
1263
|
|
|
1264
|
|
|
1265 /* Show busy */
|
|
|
1266 static void
|
|
|
1267 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1268 {
|
|
|
1269 Pixel foreground = 0;
|
|
|
1270 Pixel background = 1;
|
|
|
1271 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1272 if (!widget_to_invert)
|
|
|
1273 widget_to_invert = w;
|
|
|
1274
|
|
|
1275 XtVaGetValues (widget_to_invert,
|
|
|
1276 XtNforeground, &foreground,
|
|
|
1277 XtNbackground, &background,
|
|
|
1278 0);
|
|
|
1279 XtVaSetValues (widget_to_invert,
|
|
|
1280 XtNforeground, background,
|
|
|
1281 XtNbackground, foreground,
|
|
|
1282 0);
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 void
|
|
|
1286 lw_show_busy (Widget w, Boolean busy)
|
|
|
1287 {
|
|
|
1288 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1289 widget_info *info;
|
|
|
1290 widget_instance *next;
|
|
|
1291
|
|
|
1292 if (instance)
|
|
|
1293 {
|
|
|
1294 info = instance->info;
|
|
|
1295 if (info->busy != busy)
|
|
|
1296 {
|
|
|
1297 for (next = info->instances; next; next = next->next)
|
|
|
1298 if (next->widget)
|
|
|
1299 show_one_widget_busy (next->widget, busy);
|
|
|
1300 info->busy = busy;
|
|
|
1301 }
|
|
|
1302 }
|
|
|
1303 }
|
