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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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434
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43 #ifdef LWLIB_WIDGETS_MOTIF
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44 #include <Xm/Xm.h>
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45 #endif
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428
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46 #endif
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47 #ifdef NEED_ATHENA
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48 #include "lwlib-Xaw.h"
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49 #endif
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50
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51 /* #### Does a check need to be put back in here to make sure we have
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52 sufficient defines to function properly or are the checks in the
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53 makefile sufficient? */
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54
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55 /* List of all widgets managed by the library. Note that each "widget"
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56 listed here may actually be a tree of widgets; for example, a
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57 single entry here might represent a single menubar or popup menu,
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58 each of which might be implemented with a tree of widgets.
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59 */
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60 static widget_info *all_widget_info = NULL;
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61
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62 /* boolean flag indicating that the menubar is active */
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63 int lw_menu_active = 0;
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64
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65 /* X11 menubar widget */
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66 Widget lw_menubar_widget = NULL;
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67
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68 /* whether the last menu operation was a keyboard accelerator */
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69 int lw_menu_accelerate = False;
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70
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71
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72 /* Forward declarations */
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434
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73 static void instantiate_widget_instance (widget_instance *instance);
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74 static void free_widget_value_args (widget_value* wv);
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428
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75
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76
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77 /* utility functions for widget_instance and widget_info */
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78 static char *
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442
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79 safe_strdup (const char *s)
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428
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80 {
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81 char *result;
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82 if (! s) return 0;
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83 result = (char *) malloc (strlen (s) + 1);
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84 if (! result)
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85 return 0;
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86 strcpy (result, s);
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87 return result;
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88 }
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89
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90 static void
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91 safe_free_str (char *s)
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92 {
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93 if (s) free (s);
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94 }
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95
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96 static widget_value *widget_value_free_list = 0;
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97
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98 widget_value *
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99 malloc_widget_value (void)
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100 {
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101 widget_value *wv;
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102 if (widget_value_free_list)
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103 {
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104 wv = widget_value_free_list;
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105 widget_value_free_list = wv->free_list;
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106 wv->free_list = 0;
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107 }
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108 else
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109 {
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110 wv = (widget_value *) malloc (sizeof (widget_value));
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111 }
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112 if (wv)
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113 {
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438
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114 memset (wv, '\0', sizeof (widget_value));
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428
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115 }
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116 return wv;
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117 }
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118
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119 /* this is analogous to free(). It frees only what was allocated
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120 by malloc_widget_value(), and no substructures.
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121 */
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122 void
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123 free_widget_value (widget_value *wv)
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124 {
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125 if (wv->free_list)
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126 abort ();
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127 wv->free_list = widget_value_free_list;
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128 widget_value_free_list = wv;
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129 }
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130
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131 static void
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132 free_widget_value_contents (widget_value *wv)
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133 {
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134 if (wv->name) free (wv->name);
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135 if (wv->value) free (wv->value);
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136 if (wv->key) free (wv->key);
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137
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138 /* #### - all of this 0xDEADBEEF stuff should be unnecessary
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139 in production code... it should be conditionalized. */
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140 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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141
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142 if (wv->toolkit_data && wv->free_toolkit_data)
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143 {
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144 XtFree ((char *) wv->toolkit_data);
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145 wv->toolkit_data = (void *) 0xDEADBEEF;
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146 }
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147 #ifdef NEED_SCROLLBARS
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148 if (wv->scrollbar_data)
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149 {
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150 free (wv->scrollbar_data);
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151 wv->scrollbar_data = NULL;
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152 }
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153 #endif
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154 if (wv->contents && (wv->contents != (widget_value*)1))
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155 {
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156 free_widget_value_tree (wv->contents);
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157 wv->contents = (widget_value *) 0xDEADBEEF;
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158 }
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434
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159
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160 free_widget_value_args (wv);
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161
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428
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162 if (wv->next)
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163 {
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164 free_widget_value_tree (wv->next);
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165 wv->next = (widget_value *) 0xDEADBEEF;
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166 }
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167 }
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168
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169 void
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170 free_widget_value_tree (widget_value *wv)
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171 {
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172 if (!wv)
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173 return;
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174
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175 free_widget_value_contents (wv);
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176 free_widget_value (wv);
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177 }
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178
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179 #ifdef NEED_SCROLLBARS
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180
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181 static void
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182 copy_scrollbar_values (widget_value *val, widget_value *copy)
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183 {
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184 if (!copy->scrollbar_data)
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185 copy->scrollbar_data =
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186 (scrollbar_values *) malloc (sizeof (scrollbar_values));
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187
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188 if (val->scrollbar_data)
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189 *copy->scrollbar_data = *val->scrollbar_data;
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190 else
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438
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191 memset (copy->scrollbar_data, '\0', sizeof (scrollbar_values));
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428
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192 }
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193
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194 /*
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195 * Return true if old->scrollbar_data were not equivalent
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196 * to new->scrollbar_data.
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197 */
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198 static Boolean
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199 merge_scrollbar_values (widget_value *old, widget_value *new)
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200 {
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201 Boolean changed = False;
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202
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203 if (new->scrollbar_data && !old->scrollbar_data)
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204 {
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205 copy_scrollbar_values (new, old);
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206 changed = True;
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207 }
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208 else if (!new->scrollbar_data && old->scrollbar_data)
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209 {
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210 free (old->scrollbar_data);
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211 old->scrollbar_data = NULL;
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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 scrollbar_values *old_sb = old->scrollbar_data;
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216 scrollbar_values *new_sb = new->scrollbar_data;
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217
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218 if ((old_sb->line_increment != new_sb->line_increment) ||
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219 (old_sb->page_increment != new_sb->page_increment) ||
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220 (old_sb->minimum != new_sb->minimum) ||
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221 (old_sb->maximum != new_sb->maximum) ||
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222 (old_sb->slider_size != new_sb->slider_size) ||
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223 (old_sb->slider_position != new_sb->slider_position) ||
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224 (old_sb->scrollbar_width != new_sb->scrollbar_width) ||
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225 (old_sb->scrollbar_height != new_sb->scrollbar_height) ||
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226 (old_sb->scrollbar_x != new_sb->scrollbar_x) ||
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227 (old_sb->scrollbar_y != new_sb->scrollbar_y))
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228 changed = True;
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229
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230 *old_sb = *new_sb;
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231 }
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232
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233 return changed;
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234 }
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235
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236 #endif /* NEED_SCROLLBARS */
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237
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434
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238 #ifdef HAVE_WIDGETS
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239 /*
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240 * Return true if old->args was not equivalent
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241 * to new->args.
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242 */
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243 static Boolean
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244 merge_widget_value_args (widget_value *old, widget_value *new)
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245 {
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246 Boolean changed = False;
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247
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248 if (new->args && !old->args)
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249 {
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250 lw_copy_widget_value_args (new, old);
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251 changed = True;
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252 }
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253 /* Generally we don't want to lose values that are already in the
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254 widget. */
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255 else if (!new->args && old->args)
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256 {
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257 lw_copy_widget_value_args (old, new);
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258 changed = True;
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259 }
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442
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260 else if (new->args && old->args && new->args != old->args)
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434
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261 {
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262 /* #### Do something more sensible here than just copying the
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263 new values (like actually merging the values). */
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264 lw_copy_widget_value_args (new, old);
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265 changed = True;
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266 }
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267
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268 return changed;
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269 }
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270 #endif /* HAVE_WIDGETS */
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271
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428
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272 /* Make a complete copy of a widget_value tree. Store CHANGE into
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273 the widget_value tree's `change' field. */
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274
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442
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275 widget_value *
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428
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276 copy_widget_value_tree (widget_value *val, change_type change)
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277 {
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278 widget_value *copy;
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279
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280 if (!val)
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281 return NULL;
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282 if (val == (widget_value *) 1)
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283 return val;
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284
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285 copy = malloc_widget_value ();
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286 if (copy)
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287 {
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288 /* #### - don't seg fault *here* if out of memory. Menus will be
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289 truncated inexplicably. */
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290 copy->type = val->type;
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291 copy->name = safe_strdup (val->name);
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292 copy->value = safe_strdup (val->value);
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293 copy->key = safe_strdup (val->key);
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294 copy->accel = val->accel;
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295 copy->enabled = val->enabled;
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296 copy->selected = val->selected;
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297 copy->edited = False;
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298 copy->change = change;
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299 copy->contents = copy_widget_value_tree (val->contents, change);
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300 copy->call_data = val->call_data;
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301 copy->next = copy_widget_value_tree (val->next, change);
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302 copy->toolkit_data = NULL;
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303 copy->free_toolkit_data = False;
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434
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304
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305 lw_copy_widget_value_args (val, copy);
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428
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306 #ifdef NEED_SCROLLBARS
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307 copy_scrollbar_values (val, copy);
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308 #endif
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309 }
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310 return copy;
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311 }
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312
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313 /* This function is used to implement incremental menu construction. */
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314
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315 widget_value *
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316 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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317 {
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318 widget_value *copy;
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319
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320 if (!node || !newtree)
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321 abort ();
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322
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323 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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324
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325 free_widget_value_contents (node);
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326 *node = *copy;
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327 free_widget_value (copy); /* free the node, but not its contents. */
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328 return node;
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329 }
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330
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331 static widget_info *
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442
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332 allocate_widget_info (const char *type, const char *name,
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428
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333 LWLIB_ID id, widget_value *val,
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334 lw_callback pre_activate_cb, lw_callback selection_cb,
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335 lw_callback post_activate_cb)
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336 {
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337 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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338 info->type = safe_strdup (type);
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339 info->name = safe_strdup (name);
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340 info->id = id;
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341 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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342 info->busy = False;
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343 info->pre_activate_cb = pre_activate_cb;
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344 info->selection_cb = selection_cb;
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345 info->post_activate_cb = post_activate_cb;
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346 info->instances = NULL;
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347
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348 info->next = all_widget_info;
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349 all_widget_info = info;
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350
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351 return info;
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352 }
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353
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354 static void
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355 free_widget_info (widget_info *info)
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356 {
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357 safe_free_str (info->type);
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358 safe_free_str (info->name);
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|
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359 free_widget_value_tree (info->val);
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|
438
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360 memset (info, '\0', sizeof (widget_info));
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|
428
|
361 free (info);
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|
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362 }
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363
|
|
|
364 static void
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|
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365 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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|
|
366 {
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|
|
367 widget_instance *instance = (widget_instance*)closure;
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|
|
368
|
|
|
369 /* be very conservative */
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|
|
370 if (instance->widget == widget)
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|
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371 instance->widget = NULL;
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|
|
372 }
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373
|
|
|
374 static widget_instance *
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|
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375 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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|
|
376 {
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|
|
377 widget_instance *instance =
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|
|
378 (widget_instance *) malloc (sizeof (widget_instance));
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|
|
379 instance->parent = parent;
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|
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380 instance->pop_up_p = pop_up_p;
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|
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381 instance->info = info;
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|
|
382 instance->next = info->instances;
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|
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383 info->instances = instance;
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|
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384
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|
|
385 instantiate_widget_instance (instance);
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|
|
386
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|
|
387 XtAddCallback (instance->widget, XtNdestroyCallback,
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|
|
388 mark_widget_destroyed, (XtPointer)instance);
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|
|
389 return instance;
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|
|
390 }
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|
|
391
|
|
|
392 static void
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|
|
393 free_widget_instance (widget_instance *instance)
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|
|
394 {
|
|
438
|
395 memset (instance, '\0', sizeof (widget_instance));
|
|
428
|
396 free (instance);
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|
|
397 }
|
|
|
398
|
|
|
399 static widget_info *
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|
|
400 get_widget_info (LWLIB_ID id, Boolean remove_p)
|
|
|
401 {
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|
|
402 widget_info *info;
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|
|
403 widget_info *prev;
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|
|
404 for (prev = NULL, info = all_widget_info;
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|
|
405 info;
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|
|
406 prev = info, info = info->next)
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|
|
407 if (info->id == id)
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|
|
408 {
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|
|
409 if (remove_p)
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|
|
410 {
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|
|
411 if (prev)
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|
|
412 prev->next = info->next;
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|
|
413 else
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|
|
414 all_widget_info = info->next;
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|
|
415 }
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|
|
416 return info;
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|
|
417 }
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|
|
418 return NULL;
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|
|
419 }
|
|
|
420
|
|
|
421 /* Internal function used by the library dependent implementation to get the
|
|
|
422 widget_value for a given widget in an instance */
|
|
|
423 widget_info *
|
|
|
424 lw_get_widget_info (LWLIB_ID id)
|
|
|
425 {
|
|
|
426 return get_widget_info (id, 0);
|
|
|
427 }
|
|
|
428
|
|
|
429 static int
|
|
|
430 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
|
|
|
431 void *closure),
|
|
|
432 void *closure)
|
|
|
433 {
|
|
|
434 int retval = 0;
|
|
|
435
|
|
|
436 if (value->contents)
|
|
|
437 retval = map_widget_values (value->contents, mapfunc, closure);
|
|
|
438 if (retval)
|
|
|
439 return retval;
|
|
|
440
|
|
|
441 if (value->next)
|
|
|
442 retval = map_widget_values (value->next, mapfunc, closure);
|
|
|
443 if (retval)
|
|
|
444 return retval;
|
|
|
445
|
|
|
446 return (mapfunc) (value, closure);
|
|
|
447 }
|
|
|
448
|
|
|
449 int
|
|
|
450 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
|
|
|
451 void *closure),
|
|
|
452 void *closure)
|
|
|
453 {
|
|
|
454 widget_info *info = get_widget_info (id, 0);
|
|
|
455
|
|
|
456 if (!info)
|
|
|
457 abort ();
|
|
|
458
|
|
|
459 if (info->val)
|
|
|
460 return map_widget_values (info->val, mapfunc, closure);
|
|
|
461 return 0;
|
|
|
462 }
|
|
|
463
|
|
|
464 static widget_instance *
|
|
|
465 get_widget_instance (Widget widget, Boolean remove_p)
|
|
|
466 {
|
|
|
467 widget_info *info;
|
|
|
468 widget_instance *instance;
|
|
|
469 widget_instance *prev;
|
|
|
470 for (info = all_widget_info; info; info = info->next)
|
|
|
471 for (prev = NULL, instance = info->instances;
|
|
|
472 instance;
|
|
|
473 prev = instance, instance = instance->next)
|
|
|
474 if (instance->widget == widget)
|
|
|
475 {
|
|
|
476 if (remove_p)
|
|
|
477 {
|
|
|
478 if (prev)
|
|
|
479 prev->next = instance->next;
|
|
|
480 else
|
|
|
481 info->instances = instance->next;
|
|
|
482 }
|
|
|
483 return instance;
|
|
|
484 }
|
|
|
485 return (widget_instance *) 0;
|
|
|
486 }
|
|
|
487
|
|
|
488 static widget_instance*
|
|
|
489 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
490 {
|
|
|
491 widget_info *info = get_widget_info (id, False);
|
|
|
492 widget_instance *instance;
|
|
|
493
|
|
|
494 if (info)
|
|
|
495 for (instance = info->instances; instance; instance = instance->next)
|
|
|
496 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
497 return instance;
|
|
|
498
|
|
|
499 return NULL;
|
|
|
500 }
|
|
|
501
|
|
|
502
|
|
|
503 /* utility function for widget_value */
|
|
|
504 static Boolean
|
|
442
|
505 safe_strcmp (const char *s1, const char *s2)
|
|
428
|
506 {
|
|
|
507 if (!!s1 ^ !!s2) return True;
|
|
|
508 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
509 }
|
|
|
510
|
|
442
|
511 #ifndef WIN32_NATIVE
|
|
428
|
512 static change_type
|
|
|
513 max (change_type i1, change_type i2)
|
|
|
514 {
|
|
|
515 return (int)i1 > (int)i2 ? i1 : i2;
|
|
|
516 }
|
|
|
517 #endif
|
|
|
518
|
|
|
519
|
|
|
520 #if 0
|
|
|
521 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
522 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
523 name, \
|
|
|
524 (oc == NO_CHANGE ? "none" : \
|
|
|
525 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
526 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
527 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
528 oc, \
|
|
|
529 (nc == NO_CHANGE ? "none" : \
|
|
|
530 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
531 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
532 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
533 nc, desc, a1, a2)
|
|
|
534 #else
|
|
|
535 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
536 #endif
|
|
|
537
|
|
|
538
|
|
|
539 static widget_value *
|
|
|
540 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
541 {
|
|
|
542 change_type change;
|
|
|
543 widget_value *merged_next;
|
|
|
544 widget_value *merged_contents;
|
|
|
545
|
|
|
546 if (!val1)
|
|
|
547 {
|
|
|
548 if (val2)
|
|
|
549 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
550 else
|
|
|
551 return NULL;
|
|
|
552 }
|
|
|
553 if (!val2)
|
|
|
554 {
|
|
|
555 free_widget_value_tree (val1);
|
|
|
556 return NULL;
|
|
|
557 }
|
|
|
558
|
|
|
559 change = NO_CHANGE;
|
|
|
560
|
|
|
561 if (val1->type != val2->type)
|
|
|
562 {
|
|
|
563 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
564 val1->type, val2->type);
|
|
|
565 change = max (change, STRUCTURAL_CHANGE);
|
|
|
566 val1->type = val2->type;
|
|
|
567 }
|
|
|
568 if (safe_strcmp (val1->name, val2->name))
|
|
|
569 {
|
|
|
570 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
571 val1->name, val2->name);
|
|
|
572 change = max (change, STRUCTURAL_CHANGE);
|
|
|
573 safe_free_str (val1->name);
|
|
|
574 val1->name = safe_strdup (val2->name);
|
|
|
575 }
|
|
|
576 if (safe_strcmp (val1->value, val2->value))
|
|
|
577 {
|
|
|
578 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
579 val1->value, val2->value);
|
|
|
580 change = max (change, VISIBLE_CHANGE);
|
|
|
581 safe_free_str (val1->value);
|
|
|
582 val1->value = safe_strdup (val2->value);
|
|
|
583 }
|
|
|
584 if (safe_strcmp (val1->key, val2->key))
|
|
|
585 {
|
|
|
586 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
587 val1->key, val2->key);
|
|
|
588 change = max (change, VISIBLE_CHANGE);
|
|
|
589 safe_free_str (val1->key);
|
|
|
590 val1->key = safe_strdup (val2->key);
|
|
|
591 }
|
|
|
592 if (val1->accel != val2->accel)
|
|
|
593 {
|
|
|
594 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "accelerator change",
|
|
|
595 val1->accel, val2->accel);
|
|
|
596 change = max (change, VISIBLE_CHANGE);
|
|
|
597 val1->accel = val2->accel;
|
|
|
598 }
|
|
|
599 if (val1->enabled != val2->enabled)
|
|
|
600 {
|
|
|
601 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
602 val1->enabled, val2->enabled);
|
|
|
603 change = max (change, VISIBLE_CHANGE);
|
|
|
604 val1->enabled = val2->enabled;
|
|
|
605 }
|
|
|
606 if (val1->selected != val2->selected)
|
|
|
607 {
|
|
|
608 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
609 val1->selected, val2->selected);
|
|
|
610 change = max (change, VISIBLE_CHANGE);
|
|
|
611 val1->selected = val2->selected;
|
|
|
612 }
|
|
|
613 if (val1->call_data != val2->call_data)
|
|
|
614 {
|
|
|
615 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
616 val1->call_data, val2->call_data);
|
|
|
617 change = max (change, INVISIBLE_CHANGE);
|
|
|
618 val1->call_data = val2->call_data;
|
|
|
619 }
|
|
434
|
620 #ifdef HAVE_WIDGETS
|
|
|
621 if (merge_widget_value_args (val1, val2))
|
|
|
622 {
|
|
|
623 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "widget change", 0, 0);
|
|
|
624 change = max (change, VISIBLE_CHANGE);
|
|
|
625 }
|
|
|
626 #endif
|
|
|
627
|
|
428
|
628 #ifdef NEED_SCROLLBARS
|
|
|
629 if (merge_scrollbar_values (val1, val2))
|
|
|
630 {
|
|
|
631 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
632 change = max (change, VISIBLE_CHANGE);
|
|
|
633 }
|
|
|
634 #endif
|
|
|
635
|
|
|
636 if (level > 0)
|
|
|
637 {
|
|
|
638 merged_contents =
|
|
|
639 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
640
|
|
|
641 if (val1->contents && !merged_contents)
|
|
|
642 {
|
|
|
643 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
644 0, 0);
|
|
|
645 change = max (change, INVISIBLE_CHANGE);
|
|
|
646 }
|
|
|
647 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
648 {
|
|
|
649 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
650 0, 0);
|
|
|
651 change = max (change, INVISIBLE_CHANGE);
|
|
|
652 }
|
|
|
653
|
|
|
654 val1->contents = merged_contents;
|
|
|
655 }
|
|
|
656
|
|
|
657 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
658
|
|
|
659 if (val1->next && !merged_next)
|
|
|
660 {
|
|
|
661 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
662 0, 0);
|
|
|
663 change = max (change, STRUCTURAL_CHANGE);
|
|
|
664 }
|
|
|
665 else if (merged_next)
|
|
|
666 {
|
|
|
667 if (merged_next->change)
|
|
|
668 {
|
|
|
669 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
670 0, 0);
|
|
|
671 }
|
|
|
672 change = max (change, merged_next->change);
|
|
|
673 }
|
|
|
674
|
|
|
675 val1->next = merged_next;
|
|
|
676
|
|
|
677 val1->change = change;
|
|
|
678
|
|
|
679 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
680 {
|
|
|
681 if (val1->free_toolkit_data)
|
|
|
682 XtFree ((char *) val1->toolkit_data);
|
|
|
683 val1->toolkit_data = NULL;
|
|
|
684 }
|
|
|
685
|
|
|
686 return val1;
|
|
|
687 }
|
|
|
688
|
|
|
689
|
|
|
690 /* modifying the widgets */
|
|
|
691 static Widget
|
|
442
|
692 name_to_widget (widget_instance *instance, const char *name)
|
|
428
|
693 {
|
|
|
694 Widget widget = NULL;
|
|
|
695
|
|
|
696 if (!instance->widget)
|
|
|
697 return NULL;
|
|
|
698
|
|
|
699 if (!strcmp (XtName (instance->widget), name))
|
|
|
700 widget = instance->widget;
|
|
|
701 else
|
|
|
702 {
|
|
|
703 int length = strlen (name) + 2;
|
|
|
704 char *real_name = (char *) alloca (length);
|
|
|
705 real_name [0] = '*';
|
|
|
706 strcpy (real_name + 1, name);
|
|
|
707
|
|
|
708 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
709 }
|
|
|
710 return widget;
|
|
|
711 }
|
|
|
712
|
|
|
713 static void
|
|
|
714 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
715 {
|
|
|
716 Widget widget = name_to_widget (instance, val->name);
|
|
|
717
|
|
|
718 if (widget)
|
|
|
719 {
|
|
|
720 #ifdef NEED_LUCID
|
|
|
721 if (lw_lucid_widget_p (instance->widget))
|
|
|
722 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
723 #endif
|
|
|
724 #ifdef NEED_MOTIF
|
|
|
725 if (lw_motif_widget_p (instance->widget))
|
|
|
726 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
727 #endif
|
|
|
728 #ifdef NEED_ATHENA
|
|
|
729 if (lw_xaw_widget_p (instance->widget))
|
|
|
730 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
731 #endif
|
|
|
732 }
|
|
|
733 }
|
|
|
734
|
|
|
735 static void
|
|
|
736 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
737 {
|
|
|
738 widget_value *val;
|
|
|
739
|
|
|
740 if (!instance->widget)
|
|
|
741 /* the widget was destroyed */
|
|
|
742 return;
|
|
|
743
|
|
|
744 for (val = instance->info->val; val; val = val->next)
|
|
|
745 if (val->change != NO_CHANGE)
|
|
|
746 set_one_value (instance, val, deep_p);
|
|
|
747 }
|
|
|
748
|
|
|
749 static void
|
|
|
750 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
751 {
|
|
|
752 widget_instance *instance;
|
|
|
753 widget_value *val;
|
|
|
754
|
|
|
755 for (instance = info->instances; instance; instance = instance->next)
|
|
|
756 update_one_widget_instance (instance, deep_p);
|
|
|
757
|
|
|
758 for (val = info->val; val; val = val->next)
|
|
|
759 val->change = NO_CHANGE;
|
|
|
760 }
|
|
|
761
|
|
|
762 void
|
|
|
763 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
764 {
|
|
|
765 widget_info *info = get_widget_info (id, False);
|
|
|
766 widget_value *new_val;
|
|
|
767 widget_value *next_new_val;
|
|
|
768 widget_value *cur;
|
|
|
769 widget_value *prev;
|
|
|
770 widget_value *next;
|
|
|
771 int found;
|
|
|
772
|
|
|
773 if (!info)
|
|
|
774 return;
|
|
|
775
|
|
|
776 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
777 {
|
|
|
778 next_new_val = new_val->next;
|
|
|
779 new_val->next = NULL;
|
|
|
780 found = False;
|
|
|
781 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
782 if (!strcmp (cur->name, new_val->name))
|
|
|
783 {
|
|
|
784 found = True;
|
|
|
785 next = cur->next;
|
|
|
786 cur->next = NULL;
|
|
|
787 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
788 if (prev)
|
|
|
789 prev->next = cur ? cur : next;
|
|
|
790 else
|
|
|
791 info->val = cur ? cur : next;
|
|
|
792 if (cur)
|
|
|
793 cur->next = next;
|
|
|
794 break;
|
|
|
795 }
|
|
|
796 if (!found)
|
|
|
797 {
|
|
|
798 /* Could not find it, add it */
|
|
|
799 if (prev)
|
|
|
800 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
801 else
|
|
|
802 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
803 }
|
|
|
804 new_val->next = next_new_val;
|
|
|
805 }
|
|
|
806
|
|
|
807 update_all_widget_values (info, deep_p);
|
|
|
808 }
|
|
|
809
|
|
|
810
|
|
|
811 /* creating the widgets */
|
|
|
812
|
|
|
813 static void
|
|
|
814 initialize_widget_instance (widget_instance *instance)
|
|
|
815 {
|
|
|
816 widget_value *val;
|
|
|
817
|
|
|
818 for (val = instance->info->val; val; val = val->next)
|
|
|
819 val->change = STRUCTURAL_CHANGE;
|
|
|
820
|
|
|
821 update_one_widget_instance (instance, True);
|
|
|
822
|
|
|
823 for (val = instance->info->val; val; val = val->next)
|
|
|
824 val->change = NO_CHANGE;
|
|
|
825 }
|
|
|
826
|
|
442
|
827 /* strcasecmp() is not sufficiently portable or standard,
|
|
|
828 and it's easier just to write our own. */
|
|
|
829 static int
|
|
|
830 ascii_strcasecmp (const char *s1, const char *s2)
|
|
|
831 {
|
|
|
832 while (1)
|
|
|
833 {
|
|
|
834 char c1 = *s1++;
|
|
|
835 char c2 = *s2++;
|
|
|
836 if (c1 >= 'A' && c1 <= 'Z') c1 += 'a' - 'A';
|
|
|
837 if (c2 >= 'A' && c2 <= 'Z') c2 += 'a' - 'A';
|
|
|
838 if (c1 != c2) return c1 - c2;
|
|
|
839 if (c1 == '\0') return 0;
|
|
|
840 }
|
|
|
841 }
|
|
428
|
842
|
|
|
843 static widget_creation_function
|
|
442
|
844 find_in_table (const char *type, widget_creation_entry *table)
|
|
428
|
845 {
|
|
|
846 widget_creation_entry *cur;
|
|
|
847 for (cur = table; cur->type; cur++)
|
|
442
|
848 if (!ascii_strcasecmp (type, cur->type))
|
|
428
|
849 return cur->function;
|
|
|
850 return NULL;
|
|
|
851 }
|
|
|
852
|
|
|
853 static Boolean
|
|
442
|
854 dialog_spec_p (const char *name)
|
|
428
|
855 {
|
|
|
856 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
857 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
858 if (!name)
|
|
|
859 return False;
|
|
|
860
|
|
|
861 switch (name [0])
|
|
|
862 {
|
|
|
863 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
864 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
865 if (name [1] >= '0' && name [1] <= '9')
|
|
|
866 {
|
|
|
867 if (name [2] != 'B' && name [2] != 'b')
|
|
|
868 return False;
|
|
|
869 if (!name [3])
|
|
|
870 return True;
|
|
|
871 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
872 return True;
|
|
|
873 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
874 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
875 return True;
|
|
|
876 return False;
|
|
|
877 }
|
|
|
878 else
|
|
|
879 return False;
|
|
|
880
|
|
|
881 default:
|
|
|
882 return False;
|
|
|
883 }
|
|
|
884 }
|
|
|
885
|
|
|
886 static void
|
|
|
887 instantiate_widget_instance (widget_instance *instance)
|
|
|
888 {
|
|
|
889 widget_creation_function function = NULL;
|
|
|
890
|
|
|
891 #ifdef NEED_LUCID
|
|
|
892 if (!function)
|
|
|
893 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
894 #endif
|
|
|
895 #ifdef NEED_MOTIF
|
|
|
896 if (!function)
|
|
|
897 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
898 #endif
|
|
|
899 #ifdef NEED_ATHENA
|
|
|
900 if (!function)
|
|
|
901 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
902 #endif
|
|
|
903
|
|
|
904 if (!function)
|
|
|
905 {
|
|
|
906 if (dialog_spec_p (instance->info->type))
|
|
|
907 {
|
|
|
908 #ifdef LWLIB_DIALOGS_MOTIF
|
|
|
909 if (!function)
|
|
|
910 function = xm_create_dialog;
|
|
|
911 #endif
|
|
|
912 #ifdef LWLIB_DIALOGS_ATHENA
|
|
|
913 if (!function)
|
|
|
914 function = xaw_create_dialog;
|
|
|
915 #endif
|
|
|
916 #ifdef LWLIB_DIALOGS_LUCID
|
|
|
917 /* not yet (not ever?) */
|
|
|
918 #endif
|
|
|
919 }
|
|
|
920 }
|
|
|
921
|
|
|
922 if (!function)
|
|
|
923 {
|
|
|
924 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
925 instance->info->type);
|
|
|
926 abort ();
|
|
|
927 }
|
|
|
928
|
|
|
929 instance->widget = (*function) (instance);
|
|
|
930
|
|
|
931 if (!instance->widget)
|
|
|
932 abort ();
|
|
|
933
|
|
|
934 /* XtRealizeWidget (instance->widget);*/
|
|
|
935 }
|
|
|
936
|
|
|
937 void
|
|
442
|
938 lw_register_widget (const char *type, const char *name,
|
|
428
|
939 LWLIB_ID id, widget_value *val,
|
|
|
940 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
941 lw_callback post_activate_cb)
|
|
|
942 {
|
|
|
943 if (!get_widget_info (id, False))
|
|
|
944 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
945 post_activate_cb);
|
|
|
946 }
|
|
|
947
|
|
|
948 Widget
|
|
|
949 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
950 {
|
|
|
951 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
952 return instance ? instance->widget : NULL;
|
|
|
953 }
|
|
|
954
|
|
|
955 Widget
|
|
|
956 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
957 {
|
|
|
958 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
959
|
|
|
960 if (!instance)
|
|
|
961 {
|
|
|
962 widget_info *info = get_widget_info (id, False);
|
|
|
963 if (!info)
|
|
|
964 return NULL;
|
|
|
965 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
966 initialize_widget_instance (instance);
|
|
|
967 }
|
|
|
968 if (!instance->widget)
|
|
|
969 abort ();
|
|
|
970 return instance->widget;
|
|
|
971 }
|
|
|
972
|
|
|
973 Widget
|
|
442
|
974 lw_create_widget (const char *type, const char *name,
|
|
428
|
975 LWLIB_ID id, widget_value *val,
|
|
|
976 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
977 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
978 {
|
|
|
979 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
980 post_activate_cb);
|
|
|
981 return lw_make_widget (id, parent, pop_up_p);
|
|
|
982 }
|
|
|
983
|
|
|
984
|
|
|
985 /* destroying the widgets */
|
|
|
986 static void
|
|
|
987 destroy_one_instance (widget_instance *instance)
|
|
|
988 {
|
|
|
989 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
990 dereference the instance object (to set its widget slot to 0, since the
|
|
|
991 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
992 about the fact that its widget is dead too.
|
|
|
993
|
|
|
994 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
995 not have been run until arbitrarily long after the instance was freed.
|
|
|
996 */
|
|
|
997 if (instance->widget)
|
|
|
998 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
999 mark_widget_destroyed, (XtPointer)instance);
|
|
|
1000
|
|
|
1001 if (instance->widget)
|
|
|
1002 {
|
|
|
1003 /* The else are pretty tricky here, including the empty statement
|
|
|
1004 at the end because it would be very bad to destroy a widget
|
|
|
1005 twice. */
|
|
|
1006 #ifdef NEED_LUCID
|
|
|
1007 if (lw_lucid_widget_p (instance->widget))
|
|
|
1008 xlw_destroy_instance (instance);
|
|
|
1009 else
|
|
|
1010 #endif
|
|
|
1011 #ifdef NEED_MOTIF
|
|
|
1012 if (lw_motif_widget_p (instance->widget))
|
|
|
1013 xm_destroy_instance (instance);
|
|
|
1014 else
|
|
|
1015 #endif
|
|
|
1016 #ifdef NEED_ATHENA
|
|
|
1017 if (lw_xaw_widget_p (instance->widget))
|
|
|
1018 xaw_destroy_instance (instance);
|
|
|
1019 else
|
|
|
1020 #endif
|
|
|
1021 {
|
|
|
1022 /* do not remove the empty statement */
|
|
|
1023 ;
|
|
|
1024 }
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 free_widget_instance (instance);
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 void
|
|
|
1031 lw_destroy_widget (Widget w)
|
|
|
1032 {
|
|
|
1033 widget_instance *instance = get_widget_instance (w, True);
|
|
|
1034
|
|
|
1035 if (instance)
|
|
|
1036 {
|
|
|
1037 widget_info *info = instance->info;
|
|
|
1038 /* instance has already been removed from the list; free it */
|
|
|
1039 destroy_one_instance (instance);
|
|
|
1040 /* if there are no instances left, free the info too */
|
|
|
1041 if (!info->instances)
|
|
|
1042 lw_destroy_all_widgets (info->id);
|
|
|
1043 }
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 void
|
|
|
1047 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
1048 {
|
|
|
1049 widget_info *info = get_widget_info (id, True);
|
|
|
1050 widget_instance *instance;
|
|
|
1051 widget_instance *next;
|
|
|
1052
|
|
|
1053 if (info)
|
|
|
1054 {
|
|
|
1055 for (instance = info->instances; instance; )
|
|
|
1056 {
|
|
|
1057 next = instance->next;
|
|
|
1058 destroy_one_instance (instance);
|
|
|
1059 instance = next;
|
|
|
1060 }
|
|
|
1061 free_widget_info (info);
|
|
|
1062 }
|
|
|
1063 }
|
|
|
1064
|
|
|
1065 void
|
|
442
|
1066 lw_destroy_everything (void)
|
|
428
|
1067 {
|
|
|
1068 while (all_widget_info)
|
|
|
1069 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 void
|
|
442
|
1073 lw_destroy_all_pop_ups (void)
|
|
428
|
1074 {
|
|
|
1075 widget_info *info;
|
|
|
1076 widget_info *next;
|
|
|
1077 widget_instance *instance;
|
|
|
1078
|
|
|
1079 for (info = all_widget_info; info; info = next)
|
|
|
1080 {
|
|
|
1081 next = info->next;
|
|
|
1082 instance = info->instances;
|
|
|
1083 if (instance && instance->pop_up_p)
|
|
|
1084 lw_destroy_all_widgets (info->id);
|
|
|
1085 }
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 Widget
|
|
|
1089 lw_raise_all_pop_up_widgets (void)
|
|
|
1090 {
|
|
|
1091 widget_info *info;
|
|
|
1092 widget_instance *instance;
|
|
|
1093 Widget result = NULL;
|
|
|
1094
|
|
|
1095 for (info = all_widget_info; info; info = info->next)
|
|
|
1096 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1097 if (instance->pop_up_p)
|
|
|
1098 {
|
|
|
1099 Widget widget = instance->widget;
|
|
|
1100 if (widget)
|
|
|
1101 {
|
|
|
1102 if (XtIsManaged (widget)
|
|
|
1103 #ifdef NEED_MOTIF
|
|
|
1104 /* What a complete load of crap!!!!
|
|
|
1105 When a dialogShell is on the screen, it is not managed!
|
|
|
1106 */
|
|
|
1107 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1108 XtIsManaged (first_child (widget)))
|
|
|
1109 #endif
|
|
|
1110 )
|
|
|
1111 {
|
|
|
1112 if (!result)
|
|
|
1113 result = widget;
|
|
|
1114 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1115 }
|
|
|
1116 }
|
|
|
1117 }
|
|
|
1118 return result;
|
|
|
1119 }
|
|
|
1120
|
|
|
1121 static void
|
|
|
1122 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1123 {
|
|
|
1124 widget_info *info = get_widget_info (id, False);
|
|
|
1125 widget_instance *instance;
|
|
|
1126
|
|
|
1127 if (info)
|
|
|
1128 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1129 if (instance->pop_up_p && instance->widget)
|
|
|
1130 {
|
|
|
1131 #ifdef NEED_LUCID
|
|
|
1132 if (lw_lucid_widget_p (instance->widget))
|
|
|
1133 {
|
|
|
1134 XtRealizeWidget (instance->widget);
|
|
|
1135 xlw_pop_instance (instance, up);
|
|
|
1136 }
|
|
|
1137 #endif
|
|
|
1138 #ifdef NEED_MOTIF
|
|
|
1139 if (lw_motif_widget_p (instance->widget))
|
|
|
1140 {
|
|
|
1141 XtRealizeWidget (instance->widget);
|
|
|
1142 xm_pop_instance (instance, up);
|
|
|
1143 }
|
|
|
1144 #endif
|
|
|
1145 #ifdef NEED_ATHENA
|
|
|
1146 if (lw_xaw_widget_p (instance->widget))
|
|
|
1147 {
|
|
|
1148 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1149 XtRealizeWidget (instance->widget);
|
|
|
1150 xaw_pop_instance (instance, up);
|
|
|
1151 }
|
|
|
1152 #endif
|
|
|
1153 }
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 void
|
|
|
1157 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1158 {
|
|
|
1159 lw_pop_all_widgets (id, True);
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 void
|
|
|
1163 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1164 {
|
|
|
1165 lw_pop_all_widgets (id, False);
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 void
|
|
|
1169 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1170 {
|
|
|
1171 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
1172 if (lw_lucid_widget_p (widget))
|
|
|
1173 xlw_popup_menu (widget, event);
|
|
|
1174 #endif
|
|
|
1175 #ifdef LWLIB_MENUBARS_MOTIF
|
|
|
1176 if (lw_motif_widget_p (widget))
|
|
|
1177 xm_popup_menu (widget, event);
|
|
|
1178 #endif
|
|
|
1179 #ifdef LWLIB_MENUBARS_ATHENA
|
|
|
1180 if (lw_xaw_widget_p (widget))
|
|
|
1181 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1182 #endif
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 /* get the values back */
|
|
|
1186 static Boolean
|
|
|
1187 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1188 {
|
|
|
1189 Widget widget = name_to_widget (instance, val->name);
|
|
|
1190
|
|
|
1191 if (widget)
|
|
|
1192 {
|
|
|
1193 #ifdef NEED_LUCID
|
|
|
1194 if (lw_lucid_widget_p (instance->widget))
|
|
|
1195 xlw_update_one_value (instance, widget, val);
|
|
|
1196 #endif
|
|
|
1197 #ifdef NEED_MOTIF
|
|
|
1198 if (lw_motif_widget_p (instance->widget))
|
|
|
1199 xm_update_one_value (instance, widget, val);
|
|
|
1200 #endif
|
|
|
1201 #ifdef NEED_ATHENA
|
|
|
1202 if (lw_xaw_widget_p (instance->widget))
|
|
|
1203 xaw_update_one_value (instance, widget, val);
|
|
|
1204 #endif
|
|
|
1205 return True;
|
|
|
1206 }
|
|
|
1207 else
|
|
|
1208 return False;
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 Boolean
|
|
|
1212 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1213 {
|
|
|
1214 widget_info *info = get_widget_info (id, False);
|
|
|
1215 widget_instance *instance;
|
|
|
1216 widget_value *val;
|
|
|
1217 Boolean result = False;
|
|
|
1218
|
|
|
1219 if (!info)
|
|
|
1220 return False;
|
|
|
1221
|
|
|
1222 instance = info->instances;
|
|
|
1223 if (!instance)
|
|
|
1224 return False;
|
|
|
1225
|
|
|
1226 for (val = val_out; val; val = val->next)
|
|
|
1227 if (get_one_value (instance, val))
|
|
|
1228 result = True;
|
|
|
1229
|
|
|
1230 return result;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 widget_value*
|
|
|
1234 lw_get_all_values (LWLIB_ID id)
|
|
|
1235 {
|
|
|
1236 widget_info *info = get_widget_info (id, False);
|
|
|
1237 widget_value *val = info->val;
|
|
|
1238 if (lw_get_some_values (id, val))
|
|
|
1239 return val;
|
|
|
1240 else
|
|
|
1241 return NULL;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 /* internal function used by the library dependent implementation to get the
|
|
|
1245 widget_value for a given widget in an instance */
|
|
|
1246 widget_value*
|
|
|
1247 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1248 {
|
|
|
1249 char *name = XtName (w);
|
|
|
1250 widget_value *cur;
|
|
|
1251 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1252 if (!strcmp (cur->name, name))
|
|
|
1253 return cur;
|
|
|
1254 return NULL;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257
|
|
|
1258 /* update other instances value when one thing changed */
|
|
|
1259 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1260 modified to update other instances of the widgets. Closure should be the
|
|
|
1261 widget_instance. */
|
|
|
1262 void
|
|
|
1263 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1264 XtPointer call_data)
|
|
|
1265 {
|
|
|
1266 /* To forbid recursive calls */
|
|
|
1267 static Boolean updating;
|
|
|
1268
|
|
|
1269 widget_instance *instance = (widget_instance*)closure;
|
|
|
1270 char *name = XtName (widget);
|
|
|
1271 widget_info *info;
|
|
|
1272 widget_instance *cur;
|
|
|
1273 widget_value *val;
|
|
|
1274
|
|
|
1275 /* never recurse as this could cause infinite recursions. */
|
|
|
1276 if (updating)
|
|
|
1277 return;
|
|
|
1278
|
|
|
1279 /* protect against the widget being destroyed */
|
|
|
1280 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1281 return;
|
|
|
1282
|
|
|
1283 /* Return immediately if there are no other instances */
|
|
|
1284 info = instance->info;
|
|
|
1285 if (!info->instances->next)
|
|
|
1286 return;
|
|
|
1287
|
|
|
1288 updating = True;
|
|
|
1289
|
|
|
1290 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1291
|
|
|
1292 if (val && get_one_value (instance, val))
|
|
|
1293 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1294 if (cur != instance)
|
|
|
1295 set_one_value (cur, val, True);
|
|
|
1296
|
|
|
1297 updating = False;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300
|
|
|
1301
|
|
|
1302 /* get the id */
|
|
|
1303
|
|
|
1304 LWLIB_ID
|
|
|
1305 lw_get_widget_id (Widget w)
|
|
|
1306 {
|
|
|
1307 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1308
|
|
|
1309 return instance ? instance->info->id : 0;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312
|
|
|
1313 /* set the keyboard focus */
|
|
|
1314 void
|
|
|
1315 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1316 {
|
|
|
1317 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1318 /* This loses with Lesstif v0.75a */
|
|
|
1319 xm_set_keyboard_focus (parent, w);
|
|
|
1320 #else
|
|
|
1321 XtSetKeyboardFocus (parent, w);
|
|
|
1322 #endif
|
|
|
1323 }
|
|
|
1324
|
|
|
1325
|
|
|
1326 /* Show busy */
|
|
|
1327 static void
|
|
|
1328 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1329 {
|
|
|
1330 Pixel foreground = 0;
|
|
|
1331 Pixel background = 1;
|
|
|
1332 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1333 Arg al [2];
|
|
|
1334
|
|
|
1335 if (!widget_to_invert)
|
|
|
1336 widget_to_invert = w;
|
|
|
1337
|
|
|
1338 XtSetArg (al [0], XtNforeground, &foreground);
|
|
|
1339 XtSetArg (al [1], XtNbackground, &background);
|
|
|
1340 XtGetValues (widget_to_invert, al, 2);
|
|
|
1341
|
|
|
1342 XtSetArg (al [0], XtNforeground, background);
|
|
|
1343 XtSetArg (al [1], XtNbackground, foreground);
|
|
|
1344 XtSetValues (widget_to_invert, al, 2);
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 void
|
|
|
1348 lw_show_busy (Widget w, Boolean busy)
|
|
|
1349 {
|
|
|
1350 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1351 widget_info *info;
|
|
|
1352 widget_instance *next;
|
|
|
1353
|
|
|
1354 if (instance)
|
|
|
1355 {
|
|
|
1356 info = instance->info;
|
|
|
1357 if (info->busy != busy)
|
|
|
1358 {
|
|
|
1359 for (next = info->instances; next; next = next->next)
|
|
|
1360 if (next->widget)
|
|
|
1361 show_one_widget_busy (next->widget, busy);
|
|
|
1362 info->busy = busy;
|
|
|
1363 }
|
|
|
1364 }
|
|
|
1365 }
|
|
|
1366
|
|
|
1367 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset)
|
|
|
1368 {
|
|
|
1369 int i;
|
|
434
|
1370 if (wv->args && wv->args->nargs)
|
|
428
|
1371 {
|
|
434
|
1372 for (i = 0; i<wv->args->nargs; i++)
|
|
428
|
1373 {
|
|
434
|
1374 addto[i + *offset] = wv->args->args[i];
|
|
428
|
1375 }
|
|
434
|
1376 *offset += wv->args->nargs;
|
|
428
|
1377 }
|
|
|
1378 }
|
|
|
1379
|
|
434
|
1380 void lw_add_widget_value_arg (widget_value* wv, String name, XtArgVal value)
|
|
|
1381 {
|
|
442
|
1382 int i = 0;
|
|
434
|
1383 if (!wv->args)
|
|
|
1384 {
|
|
|
1385 wv->args = (widget_args *) malloc (sizeof (widget_args));
|
|
438
|
1386 memset (wv->args, '\0', sizeof (widget_args));
|
|
434
|
1387 wv->args->ref_count = 1;
|
|
|
1388 wv->args->nargs = 0;
|
|
|
1389 wv->args->args = (ArgList) malloc (sizeof (Arg) * 10);
|
|
438
|
1390 memset (wv->args->args, '\0', sizeof (Arg) * 10);
|
|
434
|
1391 }
|
|
|
1392
|
|
|
1393 if (wv->args->nargs > 10)
|
|
|
1394 return;
|
|
|
1395
|
|
442
|
1396 /* If the arg is already there then we must replace it. */
|
|
|
1397 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1398 {
|
|
|
1399 if (!strcmp (wv->args->args[i].name, name))
|
|
|
1400 {
|
|
|
1401 XtSetArg (wv->args->args [i], name, value);
|
|
|
1402 break;
|
|
|
1403 }
|
|
|
1404 }
|
|
|
1405 if (i >= wv->args->nargs)
|
|
|
1406 {
|
|
|
1407 XtSetArg (wv->args->args [wv->args->nargs], name, value); wv->args->nargs++;
|
|
|
1408 }
|
|
434
|
1409 }
|
|
|
1410
|
|
|
1411 static void free_widget_value_args (widget_value* wv)
|
|
|
1412 {
|
|
|
1413 if (wv->args)
|
|
|
1414 {
|
|
|
1415 if (--wv->args->ref_count <= 0)
|
|
|
1416 {
|
|
|
1417 #ifdef LWLIB_WIDGETS_MOTIF
|
|
|
1418 int i;
|
|
|
1419 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1420 {
|
|
|
1421 if (!strcmp (wv->args->args[i].name, XmNfontList))
|
|
|
1422 XmFontListFree ((XmFontList)wv->args->args[i].value);
|
|
|
1423 }
|
|
|
1424 #endif
|
|
|
1425 free (wv->args->args);
|
|
|
1426 free (wv->args);
|
|
442
|
1427 wv->args = 0;
|
|
434
|
1428 }
|
|
|
1429 }
|
|
|
1430 }
|
|
|
1431
|
|
|
1432 void lw_copy_widget_value_args (widget_value* val, widget_value* copy)
|
|
|
1433 {
|
|
442
|
1434 if (val == copy || val->args == copy->args)
|
|
|
1435 return;
|
|
|
1436
|
|
|
1437 if (copy->args)
|
|
434
|
1438 {
|
|
442
|
1439 free_widget_value_args (copy);
|
|
434
|
1440 }
|
|
442
|
1441
|
|
|
1442 if (val->args)
|
|
434
|
1443 {
|
|
|
1444 copy->args = val->args;
|
|
|
1445 copy->args->ref_count++;
|
|
|
1446 }
|
|
|
1447 }
|
|
|
1448
|
|
442
|
1449 /* Remove %_ and convert %% to %. We can do this in-place because we
|
|
|
1450 are always shortening, never lengthening, the string. */
|
|
|
1451 void
|
|
|
1452 lw_remove_accelerator_spec (char *val)
|
|
|
1453 {
|
|
|
1454 char *foo = val, *bar = val;
|
|
|
1455
|
|
|
1456 while (*bar)
|
|
|
1457 {
|
|
|
1458 if (*bar == '%' && *(bar+1) == '_')
|
|
|
1459 bar += 2;
|
|
|
1460 else if (*bar == '%' && *(bar+1) == '%')
|
|
|
1461 {
|
|
|
1462 *foo++ = *bar++;
|
|
|
1463 bar++;
|
|
|
1464 }
|
|
|
1465 else
|
|
|
1466 *foo++ = *bar++;
|
|
|
1467 }
|
|
|
1468 *foo = '\0';
|
|
|
1469 }
|
