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428
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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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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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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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26 #include <config.h>
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27 #include <stdio.h>
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28 #include <stdlib.h>
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29 #include <string.h>
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30 #include <sys/types.h>
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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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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 /* boolean flag indicating that the menubar is active */
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60 int lw_menu_active = 0;
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61
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62 /* X11 menubar widget */
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63 Widget lw_menubar_widget = NULL;
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64
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65 /* whether the last menu operation was a keyboard accelerator */
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66 int lw_menu_accelerate = False;
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67
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68
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69 /* Forward declarations */
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70 static void
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71 instantiate_widget_instance (widget_instance *instance);
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72
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73
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74 /* utility functions for widget_instance and widget_info */
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75 static char *
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76 safe_strdup (CONST char *s)
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77 {
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78 char *result;
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79 if (! s) return 0;
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80 result = (char *) malloc (strlen (s) + 1);
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81 if (! result)
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82 return 0;
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83 strcpy (result, s);
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84 return result;
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85 }
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86
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87 static void
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88 safe_free_str (char *s)
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89 {
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90 if (s) free (s);
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91 }
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92
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93 static widget_value *widget_value_free_list = 0;
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94
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95 widget_value *
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96 malloc_widget_value (void)
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97 {
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98 widget_value *wv;
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99 if (widget_value_free_list)
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100 {
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101 wv = widget_value_free_list;
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102 widget_value_free_list = wv->free_list;
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103 wv->free_list = 0;
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104 }
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105 else
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106 {
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107 wv = (widget_value *) malloc (sizeof (widget_value));
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108 }
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109 if (wv)
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110 {
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111 memset (wv, 0, sizeof (widget_value));
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112 }
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113 return wv;
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114 }
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115
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116 /* this is analogous to free(). It frees only what was allocated
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117 by malloc_widget_value(), and no substructures.
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118 */
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119 void
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120 free_widget_value (widget_value *wv)
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121 {
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122 if (wv->free_list)
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123 abort ();
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124 wv->free_list = widget_value_free_list;
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125 widget_value_free_list = wv;
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126 }
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127
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128 static void
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129 free_widget_value_contents (widget_value *wv)
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130 {
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131 if (wv->name) free (wv->name);
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132 if (wv->value) free (wv->value);
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133 if (wv->key) free (wv->key);
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134
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135 /* #### - all of this 0xDEADBEEF stuff should be unnecessary
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136 in production code... it should be conditionalized. */
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137 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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138
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139 if (wv->toolkit_data && wv->free_toolkit_data)
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140 {
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141 XtFree ((char *) wv->toolkit_data);
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142 wv->toolkit_data = (void *) 0xDEADBEEF;
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143 }
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144 #ifdef NEED_SCROLLBARS
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145 if (wv->scrollbar_data)
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146 {
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147 free (wv->scrollbar_data);
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148 wv->scrollbar_data = NULL;
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149 }
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150 #endif
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151 if (wv->contents && (wv->contents != (widget_value*)1))
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152 {
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153 free_widget_value_tree (wv->contents);
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154 wv->contents = (widget_value *) 0xDEADBEEF;
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155 }
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156 if (wv->args && wv->nargs)
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157 {
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158 if (wv->free_args)
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159 free (wv->args);
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160 wv->args = (ArgList) 0xDEADBEEF;
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161 wv->nargs = 0;
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162 wv->free_args = 0;
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163 }
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164 if (wv->next)
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165 {
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166 free_widget_value_tree (wv->next);
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167 wv->next = (widget_value *) 0xDEADBEEF;
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168 }
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169 }
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170
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171 void
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172 free_widget_value_tree (widget_value *wv)
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173 {
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174 if (!wv)
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175 return;
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176
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177 free_widget_value_contents (wv);
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178 free_widget_value (wv);
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179 }
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180
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181 #ifdef NEED_SCROLLBARS
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182
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183 static void
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184 copy_scrollbar_values (widget_value *val, widget_value *copy)
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185 {
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186 if (!copy->scrollbar_data)
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187 copy->scrollbar_data =
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188 (scrollbar_values *) malloc (sizeof (scrollbar_values));
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189
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190 if (val->scrollbar_data)
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191 *copy->scrollbar_data = *val->scrollbar_data;
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192 else
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193 memset (copy->scrollbar_data, 0, sizeof (scrollbar_values));
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194 }
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195
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196 /*
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197 * Return true if old->scrollbar_data were not equivalent
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198 * to new->scrollbar_data.
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199 */
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200 static Boolean
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201 merge_scrollbar_values (widget_value *old, widget_value *new)
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202 {
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203 Boolean changed = False;
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204
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205 if (new->scrollbar_data && !old->scrollbar_data)
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206 {
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207 copy_scrollbar_values (new, old);
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208 changed = True;
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209 }
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210 else if (!new->scrollbar_data && old->scrollbar_data)
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211 {
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212 free (old->scrollbar_data);
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213 old->scrollbar_data = NULL;
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214 }
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215 else if (new->scrollbar_data && old->scrollbar_data)
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216 {
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217 scrollbar_values *old_sb = old->scrollbar_data;
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218 scrollbar_values *new_sb = new->scrollbar_data;
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219
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220 if ((old_sb->line_increment != new_sb->line_increment) ||
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221 (old_sb->page_increment != new_sb->page_increment) ||
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222 (old_sb->minimum != new_sb->minimum) ||
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223 (old_sb->maximum != new_sb->maximum) ||
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224 (old_sb->slider_size != new_sb->slider_size) ||
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225 (old_sb->slider_position != new_sb->slider_position) ||
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226 (old_sb->scrollbar_width != new_sb->scrollbar_width) ||
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227 (old_sb->scrollbar_height != new_sb->scrollbar_height) ||
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228 (old_sb->scrollbar_x != new_sb->scrollbar_x) ||
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229 (old_sb->scrollbar_y != new_sb->scrollbar_y))
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230 changed = True;
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231
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232 *old_sb = *new_sb;
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233 }
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234
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235 return changed;
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236 }
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237
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238 #endif /* NEED_SCROLLBARS */
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239
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240 /* Make a complete copy of a widget_value tree. Store CHANGE into
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241 the widget_value tree's `change' field. */
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242
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243 static widget_value *
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244 copy_widget_value_tree (widget_value *val, change_type change)
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245 {
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246 widget_value *copy;
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247
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248 if (!val)
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249 return NULL;
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250 if (val == (widget_value *) 1)
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251 return val;
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252
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253 copy = malloc_widget_value ();
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254 if (copy)
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255 {
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256 /* #### - don't seg fault *here* if out of memory. Menus will be
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257 truncated inexplicably. */
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258 copy->type = val->type;
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259 copy->name = safe_strdup (val->name);
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260 copy->value = safe_strdup (val->value);
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261 copy->key = safe_strdup (val->key);
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262 copy->accel = val->accel;
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263 copy->enabled = val->enabled;
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264 copy->selected = val->selected;
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265 copy->edited = False;
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266 copy->change = change;
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267 copy->contents = copy_widget_value_tree (val->contents, change);
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268 copy->call_data = val->call_data;
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269 copy->next = copy_widget_value_tree (val->next, change);
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270 copy->toolkit_data = NULL;
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271 copy->free_toolkit_data = False;
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272 if (val->nargs)
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273 {
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274 copy->args = (ArgList)malloc (sizeof (Arg) * val->nargs);
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275 memcpy (copy->args, val->args, sizeof(Arg) * val->nargs);
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276 copy->nargs = val->nargs;
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277 copy->free_args = True;
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278 }
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279 #ifdef NEED_SCROLLBARS
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280 copy_scrollbar_values (val, copy);
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281 #endif
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282 }
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283 return copy;
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284 }
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285
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286 /* This function is used to implement incremental menu construction. */
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287
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288 widget_value *
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289 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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290 {
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291 widget_value *copy;
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292
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293 if (!node || !newtree)
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294 abort ();
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295
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296 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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297
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298 free_widget_value_contents (node);
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299 *node = *copy;
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300 free_widget_value (copy); /* free the node, but not its contents. */
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301 return node;
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302 }
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303
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304 static widget_info *
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305 allocate_widget_info (CONST char *type, CONST char *name,
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306 LWLIB_ID id, widget_value *val,
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307 lw_callback pre_activate_cb, lw_callback selection_cb,
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308 lw_callback post_activate_cb)
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309 {
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310 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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311 info->type = safe_strdup (type);
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312 info->name = safe_strdup (name);
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313 info->id = id;
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314 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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315 info->busy = False;
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316 info->pre_activate_cb = pre_activate_cb;
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317 info->selection_cb = selection_cb;
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318 info->post_activate_cb = post_activate_cb;
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319 info->instances = NULL;
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320
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321 info->next = all_widget_info;
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322 all_widget_info = info;
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323
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324 return info;
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325 }
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326
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327 static void
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328 free_widget_info (widget_info *info)
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329 {
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330 safe_free_str (info->type);
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331 safe_free_str (info->name);
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332 free_widget_value_tree (info->val);
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333 memset ((void*)info, 0xDEADBEEF, sizeof (widget_info));
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334 free (info);
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335 }
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336
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337 static void
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338 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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339 {
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340 widget_instance *instance = (widget_instance*)closure;
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341
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342 /* be very conservative */
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343 if (instance->widget == widget)
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344 instance->widget = NULL;
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345 }
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346
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347 static widget_instance *
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348 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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349 {
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350 widget_instance *instance =
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351 (widget_instance *) malloc (sizeof (widget_instance));
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352 instance->parent = parent;
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353 instance->pop_up_p = pop_up_p;
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354 instance->info = info;
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355 instance->next = info->instances;
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356 info->instances = instance;
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357
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358 instantiate_widget_instance (instance);
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359
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360 XtAddCallback (instance->widget, XtNdestroyCallback,
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361 mark_widget_destroyed, (XtPointer)instance);
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362 return instance;
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363 }
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364
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365 static void
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366 free_widget_instance (widget_instance *instance)
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367 {
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368 memset ((void *) instance, 0xDEADBEEF, sizeof (widget_instance));
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369 free (instance);
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370 }
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371
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372 static widget_info *
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373 get_widget_info (LWLIB_ID id, Boolean remove_p)
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374 {
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375 widget_info *info;
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376 widget_info *prev;
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377 for (prev = NULL, info = all_widget_info;
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378 info;
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379 prev = info, info = info->next)
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380 if (info->id == id)
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381 {
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382 if (remove_p)
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383 {
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384 if (prev)
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385 prev->next = info->next;
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386 else
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387 all_widget_info = info->next;
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388 }
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389 return info;
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390 }
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391 return NULL;
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392 }
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393
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394 /* Internal function used by the library dependent implementation to get the
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395 widget_value for a given widget in an instance */
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396 widget_info *
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397 lw_get_widget_info (LWLIB_ID id)
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398 {
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399 return get_widget_info (id, 0);
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400 }
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401
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402 static int
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403 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
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404 void *closure),
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405 void *closure)
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406 {
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407 int retval = 0;
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408
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409 if (value->contents)
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410 retval = map_widget_values (value->contents, mapfunc, closure);
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411 if (retval)
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412 return retval;
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413
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414 if (value->next)
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415 retval = map_widget_values (value->next, mapfunc, closure);
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416 if (retval)
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417 return retval;
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418
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419 return (mapfunc) (value, closure);
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420 }
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421
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422 int
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423 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
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424 void *closure),
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425 void *closure)
|
|
|
426 {
|
|
|
427 widget_info *info = get_widget_info (id, 0);
|
|
|
428
|
|
|
429 if (!info)
|
|
|
430 abort ();
|
|
|
431
|
|
|
432 if (info->val)
|
|
|
433 return map_widget_values (info->val, mapfunc, closure);
|
|
|
434 return 0;
|
|
|
435 }
|
|
|
436
|
|
|
437 static widget_instance *
|
|
|
438 get_widget_instance (Widget widget, Boolean remove_p)
|
|
|
439 {
|
|
|
440 widget_info *info;
|
|
|
441 widget_instance *instance;
|
|
|
442 widget_instance *prev;
|
|
|
443 for (info = all_widget_info; info; info = info->next)
|
|
|
444 for (prev = NULL, instance = info->instances;
|
|
|
445 instance;
|
|
|
446 prev = instance, instance = instance->next)
|
|
|
447 if (instance->widget == widget)
|
|
|
448 {
|
|
|
449 if (remove_p)
|
|
|
450 {
|
|
|
451 if (prev)
|
|
|
452 prev->next = instance->next;
|
|
|
453 else
|
|
|
454 info->instances = instance->next;
|
|
|
455 }
|
|
|
456 return instance;
|
|
|
457 }
|
|
|
458 return (widget_instance *) 0;
|
|
|
459 }
|
|
|
460
|
|
|
461 static widget_instance*
|
|
|
462 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
463 {
|
|
|
464 widget_info *info = get_widget_info (id, False);
|
|
|
465 widget_instance *instance;
|
|
|
466
|
|
|
467 if (info)
|
|
|
468 for (instance = info->instances; instance; instance = instance->next)
|
|
|
469 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
470 return instance;
|
|
|
471
|
|
|
472 return NULL;
|
|
|
473 }
|
|
|
474
|
|
|
475
|
|
|
476 /* utility function for widget_value */
|
|
|
477 static Boolean
|
|
|
478 safe_strcmp (CONST char *s1, CONST char *s2)
|
|
|
479 {
|
|
|
480 if (!!s1 ^ !!s2) return True;
|
|
|
481 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
482 }
|
|
|
483
|
|
|
484 #ifndef WINDOWSNT
|
|
|
485 static change_type
|
|
|
486 max (change_type i1, change_type i2)
|
|
|
487 {
|
|
|
488 return (int)i1 > (int)i2 ? i1 : i2;
|
|
|
489 }
|
|
|
490 #endif
|
|
|
491
|
|
|
492
|
|
|
493 #if 0
|
|
|
494 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
495 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
496 name, \
|
|
|
497 (oc == NO_CHANGE ? "none" : \
|
|
|
498 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
499 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
500 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
501 oc, \
|
|
|
502 (nc == NO_CHANGE ? "none" : \
|
|
|
503 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
504 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
505 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
506 nc, desc, a1, a2)
|
|
|
507 #else
|
|
|
508 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
509 #endif
|
|
|
510
|
|
|
511
|
|
|
512 static widget_value *
|
|
|
513 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
514 {
|
|
|
515 change_type change;
|
|
|
516 widget_value *merged_next;
|
|
|
517 widget_value *merged_contents;
|
|
|
518
|
|
|
519 if (!val1)
|
|
|
520 {
|
|
|
521 if (val2)
|
|
|
522 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
523 else
|
|
|
524 return NULL;
|
|
|
525 }
|
|
|
526 if (!val2)
|
|
|
527 {
|
|
|
528 free_widget_value_tree (val1);
|
|
|
529 return NULL;
|
|
|
530 }
|
|
|
531
|
|
|
532 change = NO_CHANGE;
|
|
|
533
|
|
|
534 if (val1->type != val2->type)
|
|
|
535 {
|
|
|
536 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
537 val1->type, val2->type);
|
|
|
538 change = max (change, STRUCTURAL_CHANGE);
|
|
|
539 val1->type = val2->type;
|
|
|
540 }
|
|
|
541 if (safe_strcmp (val1->name, val2->name))
|
|
|
542 {
|
|
|
543 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
544 val1->name, val2->name);
|
|
|
545 change = max (change, STRUCTURAL_CHANGE);
|
|
|
546 safe_free_str (val1->name);
|
|
|
547 val1->name = safe_strdup (val2->name);
|
|
|
548 }
|
|
|
549 if (safe_strcmp (val1->value, val2->value))
|
|
|
550 {
|
|
|
551 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
552 val1->value, val2->value);
|
|
|
553 change = max (change, VISIBLE_CHANGE);
|
|
|
554 safe_free_str (val1->value);
|
|
|
555 val1->value = safe_strdup (val2->value);
|
|
|
556 }
|
|
|
557 if (safe_strcmp (val1->key, val2->key))
|
|
|
558 {
|
|
|
559 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
560 val1->key, val2->key);
|
|
|
561 change = max (change, VISIBLE_CHANGE);
|
|
|
562 safe_free_str (val1->key);
|
|
|
563 val1->key = safe_strdup (val2->key);
|
|
|
564 }
|
|
|
565 if (val1->accel != val2->accel)
|
|
|
566 {
|
|
|
567 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "accelerator change",
|
|
|
568 val1->accel, val2->accel);
|
|
|
569 change = max (change, VISIBLE_CHANGE);
|
|
|
570 val1->accel = val2->accel;
|
|
|
571 }
|
|
|
572 if (val1->enabled != val2->enabled)
|
|
|
573 {
|
|
|
574 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
575 val1->enabled, val2->enabled);
|
|
|
576 change = max (change, VISIBLE_CHANGE);
|
|
|
577 val1->enabled = val2->enabled;
|
|
|
578 }
|
|
|
579 if (val1->selected != val2->selected)
|
|
|
580 {
|
|
|
581 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
582 val1->selected, val2->selected);
|
|
|
583 change = max (change, VISIBLE_CHANGE);
|
|
|
584 val1->selected = val2->selected;
|
|
|
585 }
|
|
|
586 if (val1->call_data != val2->call_data)
|
|
|
587 {
|
|
|
588 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
589 val1->call_data, val2->call_data);
|
|
|
590 change = max (change, INVISIBLE_CHANGE);
|
|
|
591 val1->call_data = val2->call_data;
|
|
|
592 }
|
|
|
593 #ifdef NEED_SCROLLBARS
|
|
|
594 if (merge_scrollbar_values (val1, val2))
|
|
|
595 {
|
|
|
596 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
597 change = max (change, VISIBLE_CHANGE);
|
|
|
598 }
|
|
|
599 #endif
|
|
|
600
|
|
|
601 if (level > 0)
|
|
|
602 {
|
|
|
603 merged_contents =
|
|
|
604 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
605
|
|
|
606 if (val1->contents && !merged_contents)
|
|
|
607 {
|
|
|
608 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
609 0, 0);
|
|
|
610 change = max (change, INVISIBLE_CHANGE);
|
|
|
611 }
|
|
|
612 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
613 {
|
|
|
614 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
615 0, 0);
|
|
|
616 change = max (change, INVISIBLE_CHANGE);
|
|
|
617 }
|
|
|
618
|
|
|
619 val1->contents = merged_contents;
|
|
|
620 }
|
|
|
621
|
|
|
622 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
623
|
|
|
624 if (val1->next && !merged_next)
|
|
|
625 {
|
|
|
626 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
627 0, 0);
|
|
|
628 change = max (change, STRUCTURAL_CHANGE);
|
|
|
629 }
|
|
|
630 else if (merged_next)
|
|
|
631 {
|
|
|
632 if (merged_next->change)
|
|
|
633 {
|
|
|
634 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
635 0, 0);
|
|
|
636 }
|
|
|
637 change = max (change, merged_next->change);
|
|
|
638 }
|
|
|
639
|
|
|
640 val1->next = merged_next;
|
|
|
641
|
|
|
642 val1->change = change;
|
|
|
643
|
|
|
644 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
645 {
|
|
|
646 if (val1->free_toolkit_data)
|
|
|
647 XtFree ((char *) val1->toolkit_data);
|
|
|
648 val1->toolkit_data = NULL;
|
|
|
649 }
|
|
|
650
|
|
|
651 return val1;
|
|
|
652 }
|
|
|
653
|
|
|
654
|
|
|
655 /* modifying the widgets */
|
|
|
656 static Widget
|
|
|
657 name_to_widget (widget_instance *instance, CONST char *name)
|
|
|
658 {
|
|
|
659 Widget widget = NULL;
|
|
|
660
|
|
|
661 if (!instance->widget)
|
|
|
662 return NULL;
|
|
|
663
|
|
|
664 if (!strcmp (XtName (instance->widget), name))
|
|
|
665 widget = instance->widget;
|
|
|
666 else
|
|
|
667 {
|
|
|
668 int length = strlen (name) + 2;
|
|
|
669 char *real_name = (char *) alloca (length);
|
|
|
670 real_name [0] = '*';
|
|
|
671 strcpy (real_name + 1, name);
|
|
|
672
|
|
|
673 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
674 }
|
|
|
675 return widget;
|
|
|
676 }
|
|
|
677
|
|
|
678 static void
|
|
|
679 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
680 {
|
|
|
681 Widget widget = name_to_widget (instance, val->name);
|
|
|
682
|
|
|
683 if (widget)
|
|
|
684 {
|
|
|
685 #ifdef NEED_LUCID
|
|
|
686 if (lw_lucid_widget_p (instance->widget))
|
|
|
687 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
688 #endif
|
|
|
689 #ifdef NEED_MOTIF
|
|
|
690 if (lw_motif_widget_p (instance->widget))
|
|
|
691 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
692 #endif
|
|
|
693 #ifdef NEED_ATHENA
|
|
|
694 if (lw_xaw_widget_p (instance->widget))
|
|
|
695 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
696 #endif
|
|
|
697 }
|
|
|
698 }
|
|
|
699
|
|
|
700 static void
|
|
|
701 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
702 {
|
|
|
703 widget_value *val;
|
|
|
704
|
|
|
705 if (!instance->widget)
|
|
|
706 /* the widget was destroyed */
|
|
|
707 return;
|
|
|
708
|
|
|
709 for (val = instance->info->val; val; val = val->next)
|
|
|
710 if (val->change != NO_CHANGE)
|
|
|
711 set_one_value (instance, val, deep_p);
|
|
|
712 }
|
|
|
713
|
|
|
714 static void
|
|
|
715 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
716 {
|
|
|
717 widget_instance *instance;
|
|
|
718 widget_value *val;
|
|
|
719
|
|
|
720 for (instance = info->instances; instance; instance = instance->next)
|
|
|
721 update_one_widget_instance (instance, deep_p);
|
|
|
722
|
|
|
723 for (val = info->val; val; val = val->next)
|
|
|
724 val->change = NO_CHANGE;
|
|
|
725 }
|
|
|
726
|
|
|
727 void
|
|
|
728 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
729 {
|
|
|
730 widget_info *info = get_widget_info (id, False);
|
|
|
731 widget_value *new_val;
|
|
|
732 widget_value *next_new_val;
|
|
|
733 widget_value *cur;
|
|
|
734 widget_value *prev;
|
|
|
735 widget_value *next;
|
|
|
736 int found;
|
|
|
737
|
|
|
738 if (!info)
|
|
|
739 return;
|
|
|
740
|
|
|
741 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
742 {
|
|
|
743 next_new_val = new_val->next;
|
|
|
744 new_val->next = NULL;
|
|
|
745 found = False;
|
|
|
746 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
747 if (!strcmp (cur->name, new_val->name))
|
|
|
748 {
|
|
|
749 found = True;
|
|
|
750 next = cur->next;
|
|
|
751 cur->next = NULL;
|
|
|
752 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
753 if (prev)
|
|
|
754 prev->next = cur ? cur : next;
|
|
|
755 else
|
|
|
756 info->val = cur ? cur : next;
|
|
|
757 if (cur)
|
|
|
758 cur->next = next;
|
|
|
759 break;
|
|
|
760 }
|
|
|
761 if (!found)
|
|
|
762 {
|
|
|
763 /* Could not find it, add it */
|
|
|
764 if (prev)
|
|
|
765 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
766 else
|
|
|
767 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
768 }
|
|
|
769 new_val->next = next_new_val;
|
|
|
770 }
|
|
|
771
|
|
|
772 update_all_widget_values (info, deep_p);
|
|
|
773 }
|
|
|
774
|
|
|
775
|
|
|
776 /* creating the widgets */
|
|
|
777
|
|
|
778 static void
|
|
|
779 initialize_widget_instance (widget_instance *instance)
|
|
|
780 {
|
|
|
781 widget_value *val;
|
|
|
782
|
|
|
783 for (val = instance->info->val; val; val = val->next)
|
|
|
784 val->change = STRUCTURAL_CHANGE;
|
|
|
785
|
|
|
786 update_one_widget_instance (instance, True);
|
|
|
787
|
|
|
788 for (val = instance->info->val; val; val = val->next)
|
|
|
789 val->change = NO_CHANGE;
|
|
|
790 }
|
|
|
791
|
|
|
792
|
|
|
793 static widget_creation_function
|
|
|
794 find_in_table (CONST char *type, widget_creation_entry *table)
|
|
|
795 {
|
|
|
796 widget_creation_entry *cur;
|
|
|
797 for (cur = table; cur->type; cur++)
|
|
|
798 if (!strcasecmp (type, cur->type))
|
|
|
799 return cur->function;
|
|
|
800 return NULL;
|
|
|
801 }
|
|
|
802
|
|
|
803 static Boolean
|
|
|
804 dialog_spec_p (CONST char *name)
|
|
|
805 {
|
|
|
806 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
807 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
808 if (!name)
|
|
|
809 return False;
|
|
|
810
|
|
|
811 switch (name [0])
|
|
|
812 {
|
|
|
813 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
814 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
815 if (name [1] >= '0' && name [1] <= '9')
|
|
|
816 {
|
|
|
817 if (name [2] != 'B' && name [2] != 'b')
|
|
|
818 return False;
|
|
|
819 if (!name [3])
|
|
|
820 return True;
|
|
|
821 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
822 return True;
|
|
|
823 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
824 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
825 return True;
|
|
|
826 return False;
|
|
|
827 }
|
|
|
828 else
|
|
|
829 return False;
|
|
|
830
|
|
|
831 default:
|
|
|
832 return False;
|
|
|
833 }
|
|
|
834 }
|
|
|
835
|
|
|
836 static void
|
|
|
837 instantiate_widget_instance (widget_instance *instance)
|
|
|
838 {
|
|
|
839 widget_creation_function function = NULL;
|
|
|
840
|
|
|
841 #ifdef NEED_LUCID
|
|
|
842 if (!function)
|
|
|
843 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
844 #endif
|
|
|
845 #ifdef NEED_MOTIF
|
|
|
846 if (!function)
|
|
|
847 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
848 #endif
|
|
|
849 #ifdef NEED_ATHENA
|
|
|
850 if (!function)
|
|
|
851 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
852 #endif
|
|
|
853
|
|
|
854 if (!function)
|
|
|
855 {
|
|
|
856 if (dialog_spec_p (instance->info->type))
|
|
|
857 {
|
|
|
858 #ifdef LWLIB_DIALOGS_MOTIF
|
|
|
859 if (!function)
|
|
|
860 function = xm_create_dialog;
|
|
|
861 #endif
|
|
|
862 #ifdef LWLIB_DIALOGS_ATHENA
|
|
|
863 if (!function)
|
|
|
864 function = xaw_create_dialog;
|
|
|
865 #endif
|
|
|
866 #ifdef LWLIB_DIALOGS_LUCID
|
|
|
867 /* not yet (not ever?) */
|
|
|
868 #endif
|
|
|
869 }
|
|
|
870 }
|
|
|
871
|
|
|
872 if (!function)
|
|
|
873 {
|
|
|
874 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
875 instance->info->type);
|
|
|
876 abort ();
|
|
|
877 }
|
|
|
878
|
|
|
879 instance->widget = (*function) (instance);
|
|
|
880
|
|
|
881 if (!instance->widget)
|
|
|
882 abort ();
|
|
|
883
|
|
|
884 /* XtRealizeWidget (instance->widget);*/
|
|
|
885 }
|
|
|
886
|
|
|
887 void
|
|
|
888 lw_register_widget (CONST char *type, CONST char *name,
|
|
|
889 LWLIB_ID id, widget_value *val,
|
|
|
890 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
891 lw_callback post_activate_cb)
|
|
|
892 {
|
|
|
893 if (!get_widget_info (id, False))
|
|
|
894 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
895 post_activate_cb);
|
|
|
896 }
|
|
|
897
|
|
|
898 Widget
|
|
|
899 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
900 {
|
|
|
901 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
902 return instance ? instance->widget : NULL;
|
|
|
903 }
|
|
|
904
|
|
|
905 Widget
|
|
|
906 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
907 {
|
|
|
908 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
909
|
|
|
910 if (!instance)
|
|
|
911 {
|
|
|
912 widget_info *info = get_widget_info (id, False);
|
|
|
913 if (!info)
|
|
|
914 return NULL;
|
|
|
915 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
916 initialize_widget_instance (instance);
|
|
|
917 }
|
|
|
918 if (!instance->widget)
|
|
|
919 abort ();
|
|
|
920 return instance->widget;
|
|
|
921 }
|
|
|
922
|
|
|
923 Widget
|
|
|
924 lw_create_widget (CONST char *type, CONST char *name,
|
|
|
925 LWLIB_ID id, widget_value *val,
|
|
|
926 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
927 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
928 {
|
|
|
929 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
930 post_activate_cb);
|
|
|
931 return lw_make_widget (id, parent, pop_up_p);
|
|
|
932 }
|
|
|
933
|
|
|
934
|
|
|
935 /* destroying the widgets */
|
|
|
936 static void
|
|
|
937 destroy_one_instance (widget_instance *instance)
|
|
|
938 {
|
|
|
939 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
940 dereference the instance object (to set its widget slot to 0, since the
|
|
|
941 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
942 about the fact that its widget is dead too.
|
|
|
943
|
|
|
944 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
945 not have been run until arbitrarily long after the instance was freed.
|
|
|
946 */
|
|
|
947 if (instance->widget)
|
|
|
948 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
949 mark_widget_destroyed, (XtPointer)instance);
|
|
|
950
|
|
|
951 if (instance->widget)
|
|
|
952 {
|
|
|
953 /* The else are pretty tricky here, including the empty statement
|
|
|
954 at the end because it would be very bad to destroy a widget
|
|
|
955 twice. */
|
|
|
956 #ifdef NEED_LUCID
|
|
|
957 if (lw_lucid_widget_p (instance->widget))
|
|
|
958 xlw_destroy_instance (instance);
|
|
|
959 else
|
|
|
960 #endif
|
|
|
961 #ifdef NEED_MOTIF
|
|
|
962 if (lw_motif_widget_p (instance->widget))
|
|
|
963 xm_destroy_instance (instance);
|
|
|
964 else
|
|
|
965 #endif
|
|
|
966 #ifdef NEED_ATHENA
|
|
|
967 if (lw_xaw_widget_p (instance->widget))
|
|
|
968 xaw_destroy_instance (instance);
|
|
|
969 else
|
|
|
970 #endif
|
|
|
971 {
|
|
|
972 /* do not remove the empty statement */
|
|
|
973 ;
|
|
|
974 }
|
|
|
975 }
|
|
|
976
|
|
|
977 free_widget_instance (instance);
|
|
|
978 }
|
|
|
979
|
|
|
980 void
|
|
|
981 lw_destroy_widget (Widget w)
|
|
|
982 {
|
|
|
983 widget_instance *instance = get_widget_instance (w, True);
|
|
|
984
|
|
|
985 if (instance)
|
|
|
986 {
|
|
|
987 widget_info *info = instance->info;
|
|
|
988 /* instance has already been removed from the list; free it */
|
|
|
989 destroy_one_instance (instance);
|
|
|
990 /* if there are no instances left, free the info too */
|
|
|
991 if (!info->instances)
|
|
|
992 lw_destroy_all_widgets (info->id);
|
|
|
993 }
|
|
|
994 }
|
|
|
995
|
|
|
996 void
|
|
|
997 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
998 {
|
|
|
999 widget_info *info = get_widget_info (id, True);
|
|
|
1000 widget_instance *instance;
|
|
|
1001 widget_instance *next;
|
|
|
1002
|
|
|
1003 if (info)
|
|
|
1004 {
|
|
|
1005 for (instance = info->instances; instance; )
|
|
|
1006 {
|
|
|
1007 next = instance->next;
|
|
|
1008 destroy_one_instance (instance);
|
|
|
1009 instance = next;
|
|
|
1010 }
|
|
|
1011 free_widget_info (info);
|
|
|
1012 }
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 void
|
|
|
1016 lw_destroy_everything ()
|
|
|
1017 {
|
|
|
1018 while (all_widget_info)
|
|
|
1019 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 void
|
|
|
1023 lw_destroy_all_pop_ups ()
|
|
|
1024 {
|
|
|
1025 widget_info *info;
|
|
|
1026 widget_info *next;
|
|
|
1027 widget_instance *instance;
|
|
|
1028
|
|
|
1029 for (info = all_widget_info; info; info = next)
|
|
|
1030 {
|
|
|
1031 next = info->next;
|
|
|
1032 instance = info->instances;
|
|
|
1033 if (instance && instance->pop_up_p)
|
|
|
1034 lw_destroy_all_widgets (info->id);
|
|
|
1035 }
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 Widget
|
|
|
1039 lw_raise_all_pop_up_widgets (void)
|
|
|
1040 {
|
|
|
1041 widget_info *info;
|
|
|
1042 widget_instance *instance;
|
|
|
1043 Widget result = NULL;
|
|
|
1044
|
|
|
1045 for (info = all_widget_info; info; info = info->next)
|
|
|
1046 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1047 if (instance->pop_up_p)
|
|
|
1048 {
|
|
|
1049 Widget widget = instance->widget;
|
|
|
1050 if (widget)
|
|
|
1051 {
|
|
|
1052 if (XtIsManaged (widget)
|
|
|
1053 #ifdef NEED_MOTIF
|
|
|
1054 /* What a complete load of crap!!!!
|
|
|
1055 When a dialogShell is on the screen, it is not managed!
|
|
|
1056 */
|
|
|
1057 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1058 XtIsManaged (first_child (widget)))
|
|
|
1059 #endif
|
|
|
1060 )
|
|
|
1061 {
|
|
|
1062 if (!result)
|
|
|
1063 result = widget;
|
|
|
1064 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1065 }
|
|
|
1066 }
|
|
|
1067 }
|
|
|
1068 return result;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 static void
|
|
|
1072 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1073 {
|
|
|
1074 widget_info *info = get_widget_info (id, False);
|
|
|
1075 widget_instance *instance;
|
|
|
1076
|
|
|
1077 if (info)
|
|
|
1078 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1079 if (instance->pop_up_p && instance->widget)
|
|
|
1080 {
|
|
|
1081 #ifdef NEED_LUCID
|
|
|
1082 if (lw_lucid_widget_p (instance->widget))
|
|
|
1083 {
|
|
|
1084 XtRealizeWidget (instance->widget);
|
|
|
1085 xlw_pop_instance (instance, up);
|
|
|
1086 }
|
|
|
1087 #endif
|
|
|
1088 #ifdef NEED_MOTIF
|
|
|
1089 if (lw_motif_widget_p (instance->widget))
|
|
|
1090 {
|
|
|
1091 XtRealizeWidget (instance->widget);
|
|
|
1092 xm_pop_instance (instance, up);
|
|
|
1093 }
|
|
|
1094 #endif
|
|
|
1095 #ifdef NEED_ATHENA
|
|
|
1096 if (lw_xaw_widget_p (instance->widget))
|
|
|
1097 {
|
|
|
1098 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1099 XtRealizeWidget (instance->widget);
|
|
|
1100 xaw_pop_instance (instance, up);
|
|
|
1101 }
|
|
|
1102 #endif
|
|
|
1103 }
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 void
|
|
|
1107 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1108 {
|
|
|
1109 lw_pop_all_widgets (id, True);
|
|
|
1110 }
|
|
|
1111
|
|
|
1112 void
|
|
|
1113 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1114 {
|
|
|
1115 lw_pop_all_widgets (id, False);
|
|
|
1116 }
|
|
|
1117
|
|
|
1118 void
|
|
|
1119 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1120 {
|
|
|
1121 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
1122 if (lw_lucid_widget_p (widget))
|
|
|
1123 xlw_popup_menu (widget, event);
|
|
|
1124 #endif
|
|
|
1125 #ifdef LWLIB_MENUBARS_MOTIF
|
|
|
1126 if (lw_motif_widget_p (widget))
|
|
|
1127 xm_popup_menu (widget, event);
|
|
|
1128 #endif
|
|
|
1129 #ifdef LWLIB_MENUBARS_ATHENA
|
|
|
1130 if (lw_xaw_widget_p (widget))
|
|
|
1131 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1132 #endif
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 /* get the values back */
|
|
|
1136 static Boolean
|
|
|
1137 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1138 {
|
|
|
1139 Widget widget = name_to_widget (instance, val->name);
|
|
|
1140
|
|
|
1141 if (widget)
|
|
|
1142 {
|
|
|
1143 #ifdef NEED_LUCID
|
|
|
1144 if (lw_lucid_widget_p (instance->widget))
|
|
|
1145 xlw_update_one_value (instance, widget, val);
|
|
|
1146 #endif
|
|
|
1147 #ifdef NEED_MOTIF
|
|
|
1148 if (lw_motif_widget_p (instance->widget))
|
|
|
1149 xm_update_one_value (instance, widget, val);
|
|
|
1150 #endif
|
|
|
1151 #ifdef NEED_ATHENA
|
|
|
1152 if (lw_xaw_widget_p (instance->widget))
|
|
|
1153 xaw_update_one_value (instance, widget, val);
|
|
|
1154 #endif
|
|
|
1155 return True;
|
|
|
1156 }
|
|
|
1157 else
|
|
|
1158 return False;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 Boolean
|
|
|
1162 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1163 {
|
|
|
1164 widget_info *info = get_widget_info (id, False);
|
|
|
1165 widget_instance *instance;
|
|
|
1166 widget_value *val;
|
|
|
1167 Boolean result = False;
|
|
|
1168
|
|
|
1169 if (!info)
|
|
|
1170 return False;
|
|
|
1171
|
|
|
1172 instance = info->instances;
|
|
|
1173 if (!instance)
|
|
|
1174 return False;
|
|
|
1175
|
|
|
1176 for (val = val_out; val; val = val->next)
|
|
|
1177 if (get_one_value (instance, val))
|
|
|
1178 result = True;
|
|
|
1179
|
|
|
1180 return result;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 widget_value*
|
|
|
1184 lw_get_all_values (LWLIB_ID id)
|
|
|
1185 {
|
|
|
1186 widget_info *info = get_widget_info (id, False);
|
|
|
1187 widget_value *val = info->val;
|
|
|
1188 if (lw_get_some_values (id, val))
|
|
|
1189 return val;
|
|
|
1190 else
|
|
|
1191 return NULL;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194 /* internal function used by the library dependent implementation to get the
|
|
|
1195 widget_value for a given widget in an instance */
|
|
|
1196 widget_value*
|
|
|
1197 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1198 {
|
|
|
1199 char *name = XtName (w);
|
|
|
1200 widget_value *cur;
|
|
|
1201 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1202 if (!strcmp (cur->name, name))
|
|
|
1203 return cur;
|
|
|
1204 return NULL;
|
|
|
1205 }
|
|
|
1206
|
|
|
1207
|
|
|
1208 /* update other instances value when one thing changed */
|
|
|
1209 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1210 modified to update other instances of the widgets. Closure should be the
|
|
|
1211 widget_instance. */
|
|
|
1212 void
|
|
|
1213 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1214 XtPointer call_data)
|
|
|
1215 {
|
|
|
1216 /* To forbid recursive calls */
|
|
|
1217 static Boolean updating;
|
|
|
1218
|
|
|
1219 widget_instance *instance = (widget_instance*)closure;
|
|
|
1220 char *name = XtName (widget);
|
|
|
1221 widget_info *info;
|
|
|
1222 widget_instance *cur;
|
|
|
1223 widget_value *val;
|
|
|
1224
|
|
|
1225 /* never recurse as this could cause infinite recursions. */
|
|
|
1226 if (updating)
|
|
|
1227 return;
|
|
|
1228
|
|
|
1229 /* protect against the widget being destroyed */
|
|
|
1230 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1231 return;
|
|
|
1232
|
|
|
1233 /* Return immediately if there are no other instances */
|
|
|
1234 info = instance->info;
|
|
|
1235 if (!info->instances->next)
|
|
|
1236 return;
|
|
|
1237
|
|
|
1238 updating = True;
|
|
|
1239
|
|
|
1240 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1241
|
|
|
1242 if (val && get_one_value (instance, val))
|
|
|
1243 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1244 if (cur != instance)
|
|
|
1245 set_one_value (cur, val, True);
|
|
|
1246
|
|
|
1247 updating = False;
|
|
|
1248 }
|
|
|
1249
|
|
|
1250
|
|
|
1251
|
|
|
1252 /* get the id */
|
|
|
1253
|
|
|
1254 LWLIB_ID
|
|
|
1255 lw_get_widget_id (Widget w)
|
|
|
1256 {
|
|
|
1257 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1258
|
|
|
1259 return instance ? instance->info->id : 0;
|
|
|
1260 }
|
|
|
1261
|
|
|
1262
|
|
|
1263 /* set the keyboard focus */
|
|
|
1264 void
|
|
|
1265 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1266 {
|
|
|
1267 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1268 /* This loses with Lesstif v0.75a */
|
|
|
1269 xm_set_keyboard_focus (parent, w);
|
|
|
1270 #else
|
|
|
1271 XtSetKeyboardFocus (parent, w);
|
|
|
1272 #endif
|
|
|
1273 }
|
|
|
1274
|
|
|
1275
|
|
|
1276 /* Show busy */
|
|
|
1277 static void
|
|
|
1278 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1279 {
|
|
|
1280 Pixel foreground = 0;
|
|
|
1281 Pixel background = 1;
|
|
|
1282 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1283 Arg al [2];
|
|
|
1284
|
|
|
1285 if (!widget_to_invert)
|
|
|
1286 widget_to_invert = w;
|
|
|
1287
|
|
|
1288 XtSetArg (al [0], XtNforeground, &foreground);
|
|
|
1289 XtSetArg (al [1], XtNbackground, &background);
|
|
|
1290 XtGetValues (widget_to_invert, al, 2);
|
|
|
1291
|
|
|
1292 XtSetArg (al [0], XtNforeground, background);
|
|
|
1293 XtSetArg (al [1], XtNbackground, foreground);
|
|
|
1294 XtSetValues (widget_to_invert, al, 2);
|
|
|
1295 }
|
|
|
1296
|
|
|
1297 void
|
|
|
1298 lw_show_busy (Widget w, Boolean busy)
|
|
|
1299 {
|
|
|
1300 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1301 widget_info *info;
|
|
|
1302 widget_instance *next;
|
|
|
1303
|
|
|
1304 if (instance)
|
|
|
1305 {
|
|
|
1306 info = instance->info;
|
|
|
1307 if (info->busy != busy)
|
|
|
1308 {
|
|
|
1309 for (next = info->instances; next; next = next->next)
|
|
|
1310 if (next->widget)
|
|
|
1311 show_one_widget_busy (next->widget, busy);
|
|
|
1312 info->busy = busy;
|
|
|
1313 }
|
|
|
1314 }
|
|
|
1315 }
|
|
|
1316
|
|
|
1317 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset)
|
|
|
1318 {
|
|
|
1319 int i;
|
|
|
1320 if (wv->nargs && wv->args)
|
|
|
1321 {
|
|
|
1322 for (i = 0; i<wv->nargs; i++)
|
|
|
1323 {
|
|
|
1324 addto[i + *offset] = wv->args[i];
|
|
|
1325 }
|
|
|
1326 *offset += wv->nargs;
|
|
|
1327 }
|
|
|
1328 }
|
|
|
1329
|
