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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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771
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238 #ifdef HAVE_X_WIDGETS
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434
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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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450
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267 else if (new->args && new->args == old->args && new->args->args_changed == True)
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268 {
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269 changed = True;
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270 }
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434
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271
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272 return changed;
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273 }
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771
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274 #endif /* HAVE_X_WIDGETS */
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434
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275
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428
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276 /* Make a complete copy of a widget_value tree. Store CHANGE into
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277 the widget_value tree's `change' field. */
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278
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442
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279 widget_value *
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428
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280 copy_widget_value_tree (widget_value *val, change_type change)
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281 {
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282 widget_value *copy;
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283
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284 if (!val)
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285 return NULL;
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286 if (val == (widget_value *) 1)
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287 return val;
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288
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289 copy = malloc_widget_value ();
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290 if (copy)
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291 {
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292 /* #### - don't seg fault *here* if out of memory. Menus will be
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293 truncated inexplicably. */
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294 copy->type = val->type;
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295 copy->name = safe_strdup (val->name);
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296 copy->value = safe_strdup (val->value);
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297 copy->key = safe_strdup (val->key);
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298 copy->accel = val->accel;
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299 copy->enabled = val->enabled;
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300 copy->selected = val->selected;
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301 copy->edited = False;
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302 copy->change = change;
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303 copy->contents = copy_widget_value_tree (val->contents, change);
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304 copy->call_data = val->call_data;
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305 copy->next = copy_widget_value_tree (val->next, change);
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306 copy->toolkit_data = NULL;
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307 copy->free_toolkit_data = False;
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434
|
308
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309 lw_copy_widget_value_args (val, copy);
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428
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310 #ifdef NEED_SCROLLBARS
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311 copy_scrollbar_values (val, copy);
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312 #endif
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313 }
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314 return copy;
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315 }
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316
|
|
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317 /* This function is used to implement incremental menu construction. */
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318
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319 widget_value *
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320 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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|
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321 {
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322 widget_value *copy;
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323
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324 if (!node || !newtree)
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325 abort ();
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326
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327 copy = copy_widget_value_tree (newtree, STRUCTURAL_CHANGE);
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328
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329 free_widget_value_contents (node);
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330 *node = *copy;
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331 free_widget_value (copy); /* free the node, but not its contents. */
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332 return node;
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333 }
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334
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|
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335 static widget_info *
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442
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336 allocate_widget_info (const char *type, const char *name,
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428
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337 LWLIB_ID id, widget_value *val,
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|
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338 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
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339 lw_callback post_activate_cb)
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|
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340 {
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341 widget_info *info = (widget_info *) malloc (sizeof (widget_info));
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342 info->type = safe_strdup (type);
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343 info->name = safe_strdup (name);
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344 info->id = id;
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345 info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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346 info->busy = False;
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347 info->pre_activate_cb = pre_activate_cb;
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|
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348 info->selection_cb = selection_cb;
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|
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349 info->post_activate_cb = post_activate_cb;
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|
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350 info->instances = NULL;
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351
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|
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352 info->next = all_widget_info;
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353 all_widget_info = info;
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354
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355 return info;
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356 }
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357
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|
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358 static void
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|
|
359 free_widget_info (widget_info *info)
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|
|
360 {
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|
|
361 safe_free_str (info->type);
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|
|
362 safe_free_str (info->name);
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|
|
363 free_widget_value_tree (info->val);
|
|
438
|
364 memset (info, '\0', sizeof (widget_info));
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|
428
|
365 free (info);
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|
|
366 }
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|
|
367
|
|
|
368 static void
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|
|
369 mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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|
|
370 {
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|
|
371 widget_instance *instance = (widget_instance*)closure;
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|
|
372
|
|
|
373 /* be very conservative */
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|
|
374 if (instance->widget == widget)
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|
|
375 instance->widget = NULL;
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|
|
376 }
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|
|
377
|
|
|
378 static widget_instance *
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|
|
379 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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|
|
380 {
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|
|
381 widget_instance *instance =
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|
|
382 (widget_instance *) malloc (sizeof (widget_instance));
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|
|
383 instance->parent = parent;
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|
|
384 instance->pop_up_p = pop_up_p;
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|
|
385 instance->info = info;
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|
|
386 instance->next = info->instances;
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|
|
387 info->instances = instance;
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|
|
388
|
|
|
389 instantiate_widget_instance (instance);
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|
|
390
|
|
|
391 XtAddCallback (instance->widget, XtNdestroyCallback,
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|
|
392 mark_widget_destroyed, (XtPointer)instance);
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|
|
393 return instance;
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|
|
394 }
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|
|
395
|
|
|
396 static void
|
|
|
397 free_widget_instance (widget_instance *instance)
|
|
|
398 {
|
|
438
|
399 memset (instance, '\0', sizeof (widget_instance));
|
|
428
|
400 free (instance);
|
|
|
401 }
|
|
|
402
|
|
|
403 static widget_info *
|
|
|
404 get_widget_info (LWLIB_ID id, Boolean remove_p)
|
|
|
405 {
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|
|
406 widget_info *info;
|
|
|
407 widget_info *prev;
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|
|
408 for (prev = NULL, info = all_widget_info;
|
|
|
409 info;
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|
|
410 prev = info, info = info->next)
|
|
|
411 if (info->id == id)
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|
|
412 {
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|
|
413 if (remove_p)
|
|
|
414 {
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|
|
415 if (prev)
|
|
|
416 prev->next = info->next;
|
|
|
417 else
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|
|
418 all_widget_info = info->next;
|
|
|
419 }
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|
|
420 return info;
|
|
|
421 }
|
|
|
422 return NULL;
|
|
|
423 }
|
|
|
424
|
|
|
425 /* Internal function used by the library dependent implementation to get the
|
|
|
426 widget_value for a given widget in an instance */
|
|
|
427 widget_info *
|
|
|
428 lw_get_widget_info (LWLIB_ID id)
|
|
|
429 {
|
|
|
430 return get_widget_info (id, 0);
|
|
|
431 }
|
|
|
432
|
|
|
433 static int
|
|
|
434 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
|
|
|
435 void *closure),
|
|
|
436 void *closure)
|
|
|
437 {
|
|
|
438 int retval = 0;
|
|
|
439
|
|
|
440 if (value->contents)
|
|
|
441 retval = map_widget_values (value->contents, mapfunc, closure);
|
|
|
442 if (retval)
|
|
|
443 return retval;
|
|
|
444
|
|
|
445 if (value->next)
|
|
|
446 retval = map_widget_values (value->next, mapfunc, closure);
|
|
|
447 if (retval)
|
|
|
448 return retval;
|
|
|
449
|
|
|
450 return (mapfunc) (value, closure);
|
|
|
451 }
|
|
|
452
|
|
|
453 int
|
|
|
454 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
|
|
|
455 void *closure),
|
|
|
456 void *closure)
|
|
|
457 {
|
|
|
458 widget_info *info = get_widget_info (id, 0);
|
|
|
459
|
|
|
460 if (!info)
|
|
|
461 abort ();
|
|
|
462
|
|
|
463 if (info->val)
|
|
|
464 return map_widget_values (info->val, mapfunc, closure);
|
|
|
465 return 0;
|
|
|
466 }
|
|
|
467
|
|
|
468 static widget_instance *
|
|
|
469 get_widget_instance (Widget widget, Boolean remove_p)
|
|
|
470 {
|
|
|
471 widget_info *info;
|
|
|
472 widget_instance *instance;
|
|
|
473 widget_instance *prev;
|
|
|
474 for (info = all_widget_info; info; info = info->next)
|
|
|
475 for (prev = NULL, instance = info->instances;
|
|
|
476 instance;
|
|
|
477 prev = instance, instance = instance->next)
|
|
|
478 if (instance->widget == widget)
|
|
|
479 {
|
|
|
480 if (remove_p)
|
|
|
481 {
|
|
|
482 if (prev)
|
|
|
483 prev->next = instance->next;
|
|
|
484 else
|
|
|
485 info->instances = instance->next;
|
|
|
486 }
|
|
|
487 return instance;
|
|
|
488 }
|
|
|
489 return (widget_instance *) 0;
|
|
|
490 }
|
|
|
491
|
|
|
492 static widget_instance*
|
|
|
493 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
494 {
|
|
|
495 widget_info *info = get_widget_info (id, False);
|
|
|
496 widget_instance *instance;
|
|
|
497
|
|
|
498 if (info)
|
|
|
499 for (instance = info->instances; instance; instance = instance->next)
|
|
|
500 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
501 return instance;
|
|
|
502
|
|
|
503 return NULL;
|
|
|
504 }
|
|
|
505
|
|
|
506
|
|
|
507 /* utility function for widget_value */
|
|
|
508 static Boolean
|
|
442
|
509 safe_strcmp (const char *s1, const char *s2)
|
|
428
|
510 {
|
|
|
511 if (!!s1 ^ !!s2) return True;
|
|
|
512 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
513 }
|
|
|
514
|
|
442
|
515 #ifndef WIN32_NATIVE
|
|
428
|
516 static change_type
|
|
|
517 max (change_type i1, change_type i2)
|
|
|
518 {
|
|
|
519 return (int)i1 > (int)i2 ? i1 : i2;
|
|
|
520 }
|
|
|
521 #endif
|
|
|
522
|
|
|
523
|
|
|
524 #if 0
|
|
|
525 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
526 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
527 name, \
|
|
|
528 (oc == NO_CHANGE ? "none" : \
|
|
|
529 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
530 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
531 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
532 oc, \
|
|
|
533 (nc == NO_CHANGE ? "none" : \
|
|
|
534 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
535 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
536 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
537 nc, desc, a1, a2)
|
|
|
538 #else
|
|
|
539 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
540 #endif
|
|
|
541
|
|
|
542
|
|
|
543 static widget_value *
|
|
|
544 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
545 {
|
|
|
546 change_type change;
|
|
|
547 widget_value *merged_next;
|
|
|
548 widget_value *merged_contents;
|
|
|
549
|
|
|
550 if (!val1)
|
|
|
551 {
|
|
|
552 if (val2)
|
|
|
553 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
554 else
|
|
|
555 return NULL;
|
|
|
556 }
|
|
|
557 if (!val2)
|
|
|
558 {
|
|
|
559 free_widget_value_tree (val1);
|
|
|
560 return NULL;
|
|
|
561 }
|
|
|
562
|
|
|
563 change = NO_CHANGE;
|
|
|
564
|
|
|
565 if (val1->type != val2->type)
|
|
|
566 {
|
|
|
567 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
568 val1->type, val2->type);
|
|
|
569 change = max (change, STRUCTURAL_CHANGE);
|
|
|
570 val1->type = val2->type;
|
|
|
571 }
|
|
|
572 if (safe_strcmp (val1->name, val2->name))
|
|
|
573 {
|
|
|
574 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
575 val1->name, val2->name);
|
|
|
576 change = max (change, STRUCTURAL_CHANGE);
|
|
|
577 safe_free_str (val1->name);
|
|
|
578 val1->name = safe_strdup (val2->name);
|
|
|
579 }
|
|
|
580 if (safe_strcmp (val1->value, val2->value))
|
|
|
581 {
|
|
|
582 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
583 val1->value, val2->value);
|
|
|
584 change = max (change, VISIBLE_CHANGE);
|
|
|
585 safe_free_str (val1->value);
|
|
|
586 val1->value = safe_strdup (val2->value);
|
|
|
587 }
|
|
|
588 if (safe_strcmp (val1->key, val2->key))
|
|
|
589 {
|
|
|
590 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
591 val1->key, val2->key);
|
|
|
592 change = max (change, VISIBLE_CHANGE);
|
|
|
593 safe_free_str (val1->key);
|
|
|
594 val1->key = safe_strdup (val2->key);
|
|
|
595 }
|
|
|
596 if (val1->accel != val2->accel)
|
|
|
597 {
|
|
|
598 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "accelerator change",
|
|
|
599 val1->accel, val2->accel);
|
|
|
600 change = max (change, VISIBLE_CHANGE);
|
|
|
601 val1->accel = val2->accel;
|
|
|
602 }
|
|
|
603 if (val1->enabled != val2->enabled)
|
|
|
604 {
|
|
|
605 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
606 val1->enabled, val2->enabled);
|
|
|
607 change = max (change, VISIBLE_CHANGE);
|
|
|
608 val1->enabled = val2->enabled;
|
|
|
609 }
|
|
|
610 if (val1->selected != val2->selected)
|
|
|
611 {
|
|
|
612 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
613 val1->selected, val2->selected);
|
|
|
614 change = max (change, VISIBLE_CHANGE);
|
|
|
615 val1->selected = val2->selected;
|
|
|
616 }
|
|
|
617 if (val1->call_data != val2->call_data)
|
|
|
618 {
|
|
|
619 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
620 val1->call_data, val2->call_data);
|
|
|
621 change = max (change, INVISIBLE_CHANGE);
|
|
|
622 val1->call_data = val2->call_data;
|
|
|
623 }
|
|
771
|
624 #ifdef HAVE_X_WIDGETS
|
|
434
|
625 if (merge_widget_value_args (val1, val2))
|
|
|
626 {
|
|
|
627 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "widget change", 0, 0);
|
|
|
628 change = max (change, VISIBLE_CHANGE);
|
|
|
629 }
|
|
|
630 #endif
|
|
|
631
|
|
428
|
632 #ifdef NEED_SCROLLBARS
|
|
|
633 if (merge_scrollbar_values (val1, val2))
|
|
|
634 {
|
|
|
635 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
636 change = max (change, VISIBLE_CHANGE);
|
|
|
637 }
|
|
|
638 #endif
|
|
|
639
|
|
|
640 if (level > 0)
|
|
|
641 {
|
|
|
642 merged_contents =
|
|
|
643 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
644
|
|
|
645 if (val1->contents && !merged_contents)
|
|
|
646 {
|
|
|
647 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
648 0, 0);
|
|
|
649 change = max (change, INVISIBLE_CHANGE);
|
|
|
650 }
|
|
|
651 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
652 {
|
|
|
653 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
654 0, 0);
|
|
|
655 change = max (change, INVISIBLE_CHANGE);
|
|
|
656 }
|
|
|
657
|
|
|
658 val1->contents = merged_contents;
|
|
|
659 }
|
|
|
660
|
|
|
661 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
662
|
|
|
663 if (val1->next && !merged_next)
|
|
|
664 {
|
|
|
665 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
666 0, 0);
|
|
|
667 change = max (change, STRUCTURAL_CHANGE);
|
|
|
668 }
|
|
|
669 else if (merged_next)
|
|
|
670 {
|
|
|
671 if (merged_next->change)
|
|
|
672 {
|
|
|
673 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
674 0, 0);
|
|
|
675 }
|
|
|
676 change = max (change, merged_next->change);
|
|
|
677 }
|
|
|
678
|
|
|
679 val1->next = merged_next;
|
|
|
680
|
|
|
681 val1->change = change;
|
|
|
682
|
|
|
683 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
684 {
|
|
|
685 if (val1->free_toolkit_data)
|
|
|
686 XtFree ((char *) val1->toolkit_data);
|
|
|
687 val1->toolkit_data = NULL;
|
|
|
688 }
|
|
|
689
|
|
|
690 return val1;
|
|
|
691 }
|
|
|
692
|
|
|
693
|
|
|
694 /* modifying the widgets */
|
|
|
695 static Widget
|
|
442
|
696 name_to_widget (widget_instance *instance, const char *name)
|
|
428
|
697 {
|
|
|
698 Widget widget = NULL;
|
|
|
699
|
|
|
700 if (!instance->widget)
|
|
|
701 return NULL;
|
|
|
702
|
|
|
703 if (!strcmp (XtName (instance->widget), name))
|
|
|
704 widget = instance->widget;
|
|
|
705 else
|
|
|
706 {
|
|
|
707 int length = strlen (name) + 2;
|
|
|
708 char *real_name = (char *) alloca (length);
|
|
|
709 real_name [0] = '*';
|
|
|
710 strcpy (real_name + 1, name);
|
|
|
711
|
|
|
712 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
713 }
|
|
|
714 return widget;
|
|
|
715 }
|
|
|
716
|
|
|
717 static void
|
|
|
718 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
719 {
|
|
|
720 Widget widget = name_to_widget (instance, val->name);
|
|
|
721
|
|
|
722 if (widget)
|
|
|
723 {
|
|
|
724 #ifdef NEED_LUCID
|
|
|
725 if (lw_lucid_widget_p (instance->widget))
|
|
|
726 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
727 #endif
|
|
|
728 #ifdef NEED_MOTIF
|
|
|
729 if (lw_motif_widget_p (instance->widget))
|
|
|
730 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
731 #endif
|
|
|
732 #ifdef NEED_ATHENA
|
|
|
733 if (lw_xaw_widget_p (instance->widget))
|
|
|
734 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
735 #endif
|
|
|
736 }
|
|
|
737 }
|
|
|
738
|
|
|
739 static void
|
|
|
740 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
741 {
|
|
|
742 widget_value *val;
|
|
|
743
|
|
|
744 if (!instance->widget)
|
|
|
745 /* the widget was destroyed */
|
|
|
746 return;
|
|
|
747
|
|
|
748 for (val = instance->info->val; val; val = val->next)
|
|
|
749 if (val->change != NO_CHANGE)
|
|
|
750 set_one_value (instance, val, deep_p);
|
|
|
751 }
|
|
|
752
|
|
|
753 static void
|
|
|
754 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
755 {
|
|
|
756 widget_instance *instance;
|
|
|
757 widget_value *val;
|
|
|
758
|
|
|
759 for (instance = info->instances; instance; instance = instance->next)
|
|
|
760 update_one_widget_instance (instance, deep_p);
|
|
|
761
|
|
|
762 for (val = info->val; val; val = val->next)
|
|
450
|
763 {
|
|
|
764 val->change = NO_CHANGE;
|
|
|
765 if (val->args)
|
|
|
766 val->args->args_changed = False;
|
|
|
767 }
|
|
428
|
768 }
|
|
|
769
|
|
|
770 void
|
|
|
771 lw_modify_all_widgets (LWLIB_ID id, widget_value *val, Boolean deep_p)
|
|
|
772 {
|
|
|
773 widget_info *info = get_widget_info (id, False);
|
|
|
774 widget_value *new_val;
|
|
|
775 widget_value *next_new_val;
|
|
|
776 widget_value *cur;
|
|
|
777 widget_value *prev;
|
|
|
778 widget_value *next;
|
|
|
779 int found;
|
|
|
780
|
|
|
781 if (!info)
|
|
|
782 return;
|
|
|
783
|
|
|
784 for (new_val = val; new_val; new_val = new_val->next)
|
|
|
785 {
|
|
|
786 next_new_val = new_val->next;
|
|
|
787 new_val->next = NULL;
|
|
|
788 found = False;
|
|
|
789 for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
|
|
790 if (!strcmp (cur->name, new_val->name))
|
|
|
791 {
|
|
|
792 found = True;
|
|
|
793 next = cur->next;
|
|
|
794 cur->next = NULL;
|
|
|
795 cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1);
|
|
|
796 if (prev)
|
|
|
797 prev->next = cur ? cur : next;
|
|
|
798 else
|
|
|
799 info->val = cur ? cur : next;
|
|
|
800 if (cur)
|
|
|
801 cur->next = next;
|
|
|
802 break;
|
|
|
803 }
|
|
|
804 if (!found)
|
|
|
805 {
|
|
|
806 /* Could not find it, add it */
|
|
|
807 if (prev)
|
|
|
808 prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
809 else
|
|
|
810 info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
|
|
811 }
|
|
|
812 new_val->next = next_new_val;
|
|
|
813 }
|
|
|
814
|
|
|
815 update_all_widget_values (info, deep_p);
|
|
|
816 }
|
|
|
817
|
|
|
818
|
|
|
819 /* creating the widgets */
|
|
|
820
|
|
|
821 static void
|
|
|
822 initialize_widget_instance (widget_instance *instance)
|
|
|
823 {
|
|
|
824 widget_value *val;
|
|
|
825
|
|
|
826 for (val = instance->info->val; val; val = val->next)
|
|
|
827 val->change = STRUCTURAL_CHANGE;
|
|
|
828
|
|
|
829 update_one_widget_instance (instance, True);
|
|
|
830
|
|
|
831 for (val = instance->info->val; val; val = val->next)
|
|
450
|
832 {
|
|
|
833 val->change = NO_CHANGE;
|
|
|
834 if (val->args)
|
|
|
835 val->args->args_changed = False;
|
|
|
836 }
|
|
428
|
837 }
|
|
|
838
|
|
442
|
839 /* strcasecmp() is not sufficiently portable or standard,
|
|
|
840 and it's easier just to write our own. */
|
|
|
841 static int
|
|
|
842 ascii_strcasecmp (const char *s1, const char *s2)
|
|
|
843 {
|
|
|
844 while (1)
|
|
|
845 {
|
|
|
846 char c1 = *s1++;
|
|
|
847 char c2 = *s2++;
|
|
|
848 if (c1 >= 'A' && c1 <= 'Z') c1 += 'a' - 'A';
|
|
|
849 if (c2 >= 'A' && c2 <= 'Z') c2 += 'a' - 'A';
|
|
|
850 if (c1 != c2) return c1 - c2;
|
|
|
851 if (c1 == '\0') return 0;
|
|
|
852 }
|
|
|
853 }
|
|
428
|
854
|
|
872
|
855 #if defined (NEED_LUCID) || defined (NEED_ATHENA) || defined (NEED_MOTIF)
|
|
|
856
|
|
428
|
857 static widget_creation_function
|
|
450
|
858 find_in_table (const char *type, const widget_creation_entry table[])
|
|
428
|
859 {
|
|
450
|
860 const widget_creation_entry *cur;
|
|
428
|
861 for (cur = table; cur->type; cur++)
|
|
442
|
862 if (!ascii_strcasecmp (type, cur->type))
|
|
428
|
863 return cur->function;
|
|
|
864 return NULL;
|
|
|
865 }
|
|
|
866
|
|
872
|
867 #endif
|
|
|
868
|
|
428
|
869 static Boolean
|
|
442
|
870 dialog_spec_p (const char *name)
|
|
428
|
871 {
|
|
|
872 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
873 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
874 if (!name)
|
|
|
875 return False;
|
|
|
876
|
|
|
877 switch (name [0])
|
|
|
878 {
|
|
|
879 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
880 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
881 if (name [1] >= '0' && name [1] <= '9')
|
|
|
882 {
|
|
|
883 if (name [2] != 'B' && name [2] != 'b')
|
|
|
884 return False;
|
|
|
885 if (!name [3])
|
|
|
886 return True;
|
|
|
887 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
888 return True;
|
|
|
889 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
890 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
891 return True;
|
|
|
892 return False;
|
|
|
893 }
|
|
|
894 else
|
|
|
895 return False;
|
|
|
896
|
|
|
897 default:
|
|
|
898 return False;
|
|
|
899 }
|
|
|
900 }
|
|
|
901
|
|
|
902 static void
|
|
|
903 instantiate_widget_instance (widget_instance *instance)
|
|
|
904 {
|
|
|
905 widget_creation_function function = NULL;
|
|
|
906
|
|
|
907 #ifdef NEED_LUCID
|
|
|
908 if (!function)
|
|
|
909 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
910 #endif
|
|
|
911 #ifdef NEED_MOTIF
|
|
|
912 if (!function)
|
|
|
913 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
914 #endif
|
|
|
915 #ifdef NEED_ATHENA
|
|
|
916 if (!function)
|
|
|
917 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
918 #endif
|
|
|
919
|
|
|
920 if (!function)
|
|
|
921 {
|
|
|
922 if (dialog_spec_p (instance->info->type))
|
|
|
923 {
|
|
|
924 #ifdef LWLIB_DIALOGS_MOTIF
|
|
|
925 if (!function)
|
|
|
926 function = xm_create_dialog;
|
|
|
927 #endif
|
|
|
928 #ifdef LWLIB_DIALOGS_ATHENA
|
|
|
929 if (!function)
|
|
|
930 function = xaw_create_dialog;
|
|
|
931 #endif
|
|
|
932 #ifdef LWLIB_DIALOGS_LUCID
|
|
|
933 /* not yet (not ever?) */
|
|
|
934 #endif
|
|
|
935 }
|
|
|
936 }
|
|
|
937
|
|
|
938 if (!function)
|
|
|
939 {
|
|
|
940 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
941 instance->info->type);
|
|
|
942 abort ();
|
|
|
943 }
|
|
|
944
|
|
|
945 instance->widget = (*function) (instance);
|
|
|
946
|
|
|
947 if (!instance->widget)
|
|
|
948 abort ();
|
|
|
949
|
|
|
950 /* XtRealizeWidget (instance->widget);*/
|
|
|
951 }
|
|
|
952
|
|
|
953 void
|
|
442
|
954 lw_register_widget (const char *type, const char *name,
|
|
428
|
955 LWLIB_ID id, widget_value *val,
|
|
|
956 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
957 lw_callback post_activate_cb)
|
|
|
958 {
|
|
|
959 if (!get_widget_info (id, False))
|
|
|
960 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
961 post_activate_cb);
|
|
|
962 }
|
|
|
963
|
|
|
964 Widget
|
|
|
965 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
966 {
|
|
|
967 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
968 return instance ? instance->widget : NULL;
|
|
|
969 }
|
|
|
970
|
|
|
971 Widget
|
|
|
972 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
973 {
|
|
|
974 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
975
|
|
|
976 if (!instance)
|
|
|
977 {
|
|
|
978 widget_info *info = get_widget_info (id, False);
|
|
|
979 if (!info)
|
|
|
980 return NULL;
|
|
|
981 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
982 initialize_widget_instance (instance);
|
|
|
983 }
|
|
|
984 if (!instance->widget)
|
|
|
985 abort ();
|
|
|
986 return instance->widget;
|
|
|
987 }
|
|
|
988
|
|
|
989 Widget
|
|
442
|
990 lw_create_widget (const char *type, const char *name,
|
|
428
|
991 LWLIB_ID id, widget_value *val,
|
|
|
992 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
993 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
994 {
|
|
|
995 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
996 post_activate_cb);
|
|
|
997 return lw_make_widget (id, parent, pop_up_p);
|
|
|
998 }
|
|
|
999
|
|
|
1000
|
|
|
1001 /* destroying the widgets */
|
|
|
1002 static void
|
|
|
1003 destroy_one_instance (widget_instance *instance)
|
|
|
1004 {
|
|
|
1005 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
1006 dereference the instance object (to set its widget slot to 0, since the
|
|
|
1007 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
1008 about the fact that its widget is dead too.
|
|
|
1009
|
|
|
1010 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
1011 not have been run until arbitrarily long after the instance was freed.
|
|
|
1012 */
|
|
|
1013 if (instance->widget)
|
|
|
1014 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
1015 mark_widget_destroyed, (XtPointer)instance);
|
|
|
1016
|
|
|
1017 if (instance->widget)
|
|
|
1018 {
|
|
|
1019 /* The else are pretty tricky here, including the empty statement
|
|
|
1020 at the end because it would be very bad to destroy a widget
|
|
|
1021 twice. */
|
|
|
1022 #ifdef NEED_LUCID
|
|
|
1023 if (lw_lucid_widget_p (instance->widget))
|
|
|
1024 xlw_destroy_instance (instance);
|
|
|
1025 else
|
|
|
1026 #endif
|
|
|
1027 #ifdef NEED_MOTIF
|
|
|
1028 if (lw_motif_widget_p (instance->widget))
|
|
|
1029 xm_destroy_instance (instance);
|
|
|
1030 else
|
|
|
1031 #endif
|
|
|
1032 #ifdef NEED_ATHENA
|
|
|
1033 if (lw_xaw_widget_p (instance->widget))
|
|
|
1034 xaw_destroy_instance (instance);
|
|
|
1035 else
|
|
|
1036 #endif
|
|
|
1037 {
|
|
|
1038 /* do not remove the empty statement */
|
|
|
1039 ;
|
|
|
1040 }
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 free_widget_instance (instance);
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 void
|
|
|
1047 lw_destroy_widget (Widget w)
|
|
|
1048 {
|
|
|
1049 widget_instance *instance = get_widget_instance (w, True);
|
|
|
1050
|
|
|
1051 if (instance)
|
|
|
1052 {
|
|
|
1053 widget_info *info = instance->info;
|
|
|
1054 /* instance has already been removed from the list; free it */
|
|
|
1055 destroy_one_instance (instance);
|
|
|
1056 /* if there are no instances left, free the info too */
|
|
|
1057 if (!info->instances)
|
|
|
1058 lw_destroy_all_widgets (info->id);
|
|
|
1059 }
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 void
|
|
|
1063 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
1064 {
|
|
|
1065 widget_info *info = get_widget_info (id, True);
|
|
|
1066 widget_instance *instance;
|
|
|
1067 widget_instance *next;
|
|
|
1068
|
|
|
1069 if (info)
|
|
|
1070 {
|
|
|
1071 for (instance = info->instances; instance; )
|
|
|
1072 {
|
|
|
1073 next = instance->next;
|
|
|
1074 destroy_one_instance (instance);
|
|
|
1075 instance = next;
|
|
|
1076 }
|
|
|
1077 free_widget_info (info);
|
|
|
1078 }
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 void
|
|
442
|
1082 lw_destroy_everything (void)
|
|
428
|
1083 {
|
|
|
1084 while (all_widget_info)
|
|
|
1085 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 void
|
|
442
|
1089 lw_destroy_all_pop_ups (void)
|
|
428
|
1090 {
|
|
|
1091 widget_info *info;
|
|
|
1092 widget_info *next;
|
|
|
1093 widget_instance *instance;
|
|
|
1094
|
|
|
1095 for (info = all_widget_info; info; info = next)
|
|
|
1096 {
|
|
|
1097 next = info->next;
|
|
|
1098 instance = info->instances;
|
|
|
1099 if (instance && instance->pop_up_p)
|
|
|
1100 lw_destroy_all_widgets (info->id);
|
|
|
1101 }
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 Widget
|
|
|
1105 lw_raise_all_pop_up_widgets (void)
|
|
|
1106 {
|
|
|
1107 widget_info *info;
|
|
|
1108 widget_instance *instance;
|
|
|
1109 Widget result = NULL;
|
|
|
1110
|
|
|
1111 for (info = all_widget_info; info; info = info->next)
|
|
|
1112 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1113 if (instance->pop_up_p)
|
|
|
1114 {
|
|
|
1115 Widget widget = instance->widget;
|
|
|
1116 if (widget)
|
|
|
1117 {
|
|
|
1118 if (XtIsManaged (widget)
|
|
|
1119 #ifdef NEED_MOTIF
|
|
|
1120 /* What a complete load of crap!!!!
|
|
|
1121 When a dialogShell is on the screen, it is not managed!
|
|
|
1122 */
|
|
|
1123 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1124 XtIsManaged (first_child (widget)))
|
|
|
1125 #endif
|
|
|
1126 )
|
|
|
1127 {
|
|
|
1128 if (!result)
|
|
|
1129 result = widget;
|
|
|
1130 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1131 }
|
|
|
1132 }
|
|
|
1133 }
|
|
|
1134 return result;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 static void
|
|
|
1138 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1139 {
|
|
|
1140 widget_info *info = get_widget_info (id, False);
|
|
|
1141 widget_instance *instance;
|
|
|
1142
|
|
|
1143 if (info)
|
|
|
1144 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1145 if (instance->pop_up_p && instance->widget)
|
|
|
1146 {
|
|
|
1147 #ifdef NEED_LUCID
|
|
|
1148 if (lw_lucid_widget_p (instance->widget))
|
|
|
1149 {
|
|
|
1150 XtRealizeWidget (instance->widget);
|
|
|
1151 xlw_pop_instance (instance, up);
|
|
|
1152 }
|
|
|
1153 #endif
|
|
|
1154 #ifdef NEED_MOTIF
|
|
|
1155 if (lw_motif_widget_p (instance->widget))
|
|
|
1156 {
|
|
|
1157 XtRealizeWidget (instance->widget);
|
|
|
1158 xm_pop_instance (instance, up);
|
|
|
1159 }
|
|
|
1160 #endif
|
|
|
1161 #ifdef NEED_ATHENA
|
|
|
1162 if (lw_xaw_widget_p (instance->widget))
|
|
|
1163 {
|
|
|
1164 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1165 XtRealizeWidget (instance->widget);
|
|
|
1166 xaw_pop_instance (instance, up);
|
|
|
1167 }
|
|
|
1168 #endif
|
|
|
1169 }
|
|
|
1170 }
|
|
|
1171
|
|
|
1172 void
|
|
|
1173 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1174 {
|
|
|
1175 lw_pop_all_widgets (id, True);
|
|
|
1176 }
|
|
|
1177
|
|
|
1178 void
|
|
|
1179 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1180 {
|
|
|
1181 lw_pop_all_widgets (id, False);
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 void
|
|
|
1185 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1186 {
|
|
|
1187 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
1188 if (lw_lucid_widget_p (widget))
|
|
|
1189 xlw_popup_menu (widget, event);
|
|
|
1190 #endif
|
|
|
1191 #ifdef LWLIB_MENUBARS_MOTIF
|
|
|
1192 if (lw_motif_widget_p (widget))
|
|
|
1193 xm_popup_menu (widget, event);
|
|
|
1194 #endif
|
|
|
1195 #ifdef LWLIB_MENUBARS_ATHENA
|
|
|
1196 if (lw_xaw_widget_p (widget))
|
|
|
1197 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1198 #endif
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 /* get the values back */
|
|
|
1202 static Boolean
|
|
|
1203 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1204 {
|
|
|
1205 Widget widget = name_to_widget (instance, val->name);
|
|
|
1206
|
|
|
1207 if (widget)
|
|
|
1208 {
|
|
|
1209 #ifdef NEED_LUCID
|
|
|
1210 if (lw_lucid_widget_p (instance->widget))
|
|
|
1211 xlw_update_one_value (instance, widget, val);
|
|
|
1212 #endif
|
|
|
1213 #ifdef NEED_MOTIF
|
|
|
1214 if (lw_motif_widget_p (instance->widget))
|
|
|
1215 xm_update_one_value (instance, widget, val);
|
|
|
1216 #endif
|
|
|
1217 #ifdef NEED_ATHENA
|
|
|
1218 if (lw_xaw_widget_p (instance->widget))
|
|
|
1219 xaw_update_one_value (instance, widget, val);
|
|
|
1220 #endif
|
|
|
1221 return True;
|
|
|
1222 }
|
|
|
1223 else
|
|
|
1224 return False;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 Boolean
|
|
|
1228 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1229 {
|
|
|
1230 widget_info *info = get_widget_info (id, False);
|
|
|
1231 widget_instance *instance;
|
|
|
1232 widget_value *val;
|
|
|
1233 Boolean result = False;
|
|
|
1234
|
|
|
1235 if (!info)
|
|
|
1236 return False;
|
|
|
1237
|
|
|
1238 instance = info->instances;
|
|
|
1239 if (!instance)
|
|
|
1240 return False;
|
|
|
1241
|
|
|
1242 for (val = val_out; val; val = val->next)
|
|
|
1243 if (get_one_value (instance, val))
|
|
|
1244 result = True;
|
|
|
1245
|
|
|
1246 return result;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 widget_value*
|
|
|
1250 lw_get_all_values (LWLIB_ID id)
|
|
|
1251 {
|
|
|
1252 widget_info *info = get_widget_info (id, False);
|
|
|
1253 widget_value *val = info->val;
|
|
|
1254 if (lw_get_some_values (id, val))
|
|
|
1255 return val;
|
|
|
1256 else
|
|
|
1257 return NULL;
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 /* internal function used by the library dependent implementation to get the
|
|
|
1261 widget_value for a given widget in an instance */
|
|
|
1262 widget_value*
|
|
|
1263 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1264 {
|
|
|
1265 char *name = XtName (w);
|
|
|
1266 widget_value *cur;
|
|
|
1267 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1268 if (!strcmp (cur->name, name))
|
|
|
1269 return cur;
|
|
|
1270 return NULL;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273
|
|
|
1274 /* update other instances value when one thing changed */
|
|
|
1275 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1276 modified to update other instances of the widgets. Closure should be the
|
|
|
1277 widget_instance. */
|
|
|
1278 void
|
|
|
1279 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
|
1280 XtPointer call_data)
|
|
|
1281 {
|
|
|
1282 /* To forbid recursive calls */
|
|
|
1283 static Boolean updating;
|
|
|
1284
|
|
|
1285 widget_instance *instance = (widget_instance*)closure;
|
|
|
1286 char *name = XtName (widget);
|
|
|
1287 widget_info *info;
|
|
|
1288 widget_instance *cur;
|
|
|
1289 widget_value *val;
|
|
|
1290
|
|
|
1291 /* never recurse as this could cause infinite recursions. */
|
|
|
1292 if (updating)
|
|
|
1293 return;
|
|
|
1294
|
|
|
1295 /* protect against the widget being destroyed */
|
|
|
1296 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1297 return;
|
|
|
1298
|
|
|
1299 /* Return immediately if there are no other instances */
|
|
|
1300 info = instance->info;
|
|
|
1301 if (!info->instances->next)
|
|
|
1302 return;
|
|
|
1303
|
|
|
1304 updating = True;
|
|
|
1305
|
|
|
1306 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1307
|
|
|
1308 if (val && get_one_value (instance, val))
|
|
|
1309 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1310 if (cur != instance)
|
|
|
1311 set_one_value (cur, val, True);
|
|
|
1312
|
|
|
1313 updating = False;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316
|
|
|
1317
|
|
|
1318 /* get the id */
|
|
|
1319
|
|
|
1320 LWLIB_ID
|
|
|
1321 lw_get_widget_id (Widget w)
|
|
|
1322 {
|
|
|
1323 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1324
|
|
|
1325 return instance ? instance->info->id : 0;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328
|
|
|
1329 /* set the keyboard focus */
|
|
|
1330 void
|
|
|
1331 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1332 {
|
|
|
1333 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1334 /* This loses with Lesstif v0.75a */
|
|
|
1335 xm_set_keyboard_focus (parent, w);
|
|
|
1336 #else
|
|
|
1337 XtSetKeyboardFocus (parent, w);
|
|
|
1338 #endif
|
|
|
1339 }
|
|
|
1340
|
|
|
1341
|
|
|
1342 /* Show busy */
|
|
|
1343 static void
|
|
|
1344 show_one_widget_busy (Widget w, Boolean flag)
|
|
|
1345 {
|
|
|
1346 Pixel foreground = 0;
|
|
|
1347 Pixel background = 1;
|
|
|
1348 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1349 Arg al [2];
|
|
|
1350
|
|
|
1351 if (!widget_to_invert)
|
|
|
1352 widget_to_invert = w;
|
|
|
1353
|
|
|
1354 XtSetArg (al [0], XtNforeground, &foreground);
|
|
|
1355 XtSetArg (al [1], XtNbackground, &background);
|
|
|
1356 XtGetValues (widget_to_invert, al, 2);
|
|
|
1357
|
|
|
1358 XtSetArg (al [0], XtNforeground, background);
|
|
|
1359 XtSetArg (al [1], XtNbackground, foreground);
|
|
|
1360 XtSetValues (widget_to_invert, al, 2);
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 void
|
|
|
1364 lw_show_busy (Widget w, Boolean busy)
|
|
|
1365 {
|
|
|
1366 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1367 widget_info *info;
|
|
|
1368 widget_instance *next;
|
|
|
1369
|
|
|
1370 if (instance)
|
|
|
1371 {
|
|
|
1372 info = instance->info;
|
|
|
1373 if (info->busy != busy)
|
|
|
1374 {
|
|
|
1375 for (next = info->instances; next; next = next->next)
|
|
|
1376 if (next->widget)
|
|
|
1377 show_one_widget_busy (next->widget, busy);
|
|
|
1378 info->busy = busy;
|
|
|
1379 }
|
|
|
1380 }
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset)
|
|
|
1384 {
|
|
|
1385 int i;
|
|
434
|
1386 if (wv->args && wv->args->nargs)
|
|
428
|
1387 {
|
|
434
|
1388 for (i = 0; i<wv->args->nargs; i++)
|
|
428
|
1389 {
|
|
434
|
1390 addto[i + *offset] = wv->args->args[i];
|
|
428
|
1391 }
|
|
434
|
1392 *offset += wv->args->nargs;
|
|
428
|
1393 }
|
|
|
1394 }
|
|
|
1395
|
|
639
|
1396 XtArgVal lw_get_value_arg (widget_value* wv, String name)
|
|
|
1397 {
|
|
|
1398 int i;
|
|
|
1399 if (wv->args)
|
|
|
1400 {
|
|
|
1401 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1402 {
|
|
|
1403 if (!strcmp (wv->args->args[i].name, name))
|
|
|
1404 {
|
|
|
1405 return wv->args->args[i].value;
|
|
|
1406 }
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409 return (XtArgVal)0;
|
|
|
1410 }
|
|
|
1411
|
|
434
|
1412 void lw_add_widget_value_arg (widget_value* wv, String name, XtArgVal value)
|
|
|
1413 {
|
|
442
|
1414 int i = 0;
|
|
434
|
1415 if (!wv->args)
|
|
|
1416 {
|
|
|
1417 wv->args = (widget_args *) malloc (sizeof (widget_args));
|
|
438
|
1418 memset (wv->args, '\0', sizeof (widget_args));
|
|
434
|
1419 wv->args->ref_count = 1;
|
|
|
1420 wv->args->nargs = 0;
|
|
|
1421 wv->args->args = (ArgList) malloc (sizeof (Arg) * 10);
|
|
438
|
1422 memset (wv->args->args, '\0', sizeof (Arg) * 10);
|
|
434
|
1423 }
|
|
|
1424
|
|
|
1425 if (wv->args->nargs > 10)
|
|
|
1426 return;
|
|
|
1427
|
|
450
|
1428 /* Register the change. */
|
|
|
1429 wv->args->args_changed = True;
|
|
442
|
1430 /* If the arg is already there then we must replace it. */
|
|
|
1431 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1432 {
|
|
|
1433 if (!strcmp (wv->args->args[i].name, name))
|
|
|
1434 {
|
|
|
1435 XtSetArg (wv->args->args [i], name, value);
|
|
|
1436 break;
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439 if (i >= wv->args->nargs)
|
|
|
1440 {
|
|
|
1441 XtSetArg (wv->args->args [wv->args->nargs], name, value); wv->args->nargs++;
|
|
|
1442 }
|
|
434
|
1443 }
|
|
|
1444
|
|
|
1445 static void free_widget_value_args (widget_value* wv)
|
|
|
1446 {
|
|
|
1447 if (wv->args)
|
|
|
1448 {
|
|
|
1449 if (--wv->args->ref_count <= 0)
|
|
|
1450 {
|
|
|
1451 #ifdef LWLIB_WIDGETS_MOTIF
|
|
|
1452 int i;
|
|
|
1453 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1454 {
|
|
|
1455 if (!strcmp (wv->args->args[i].name, XmNfontList))
|
|
|
1456 XmFontListFree ((XmFontList)wv->args->args[i].value);
|
|
|
1457 }
|
|
|
1458 #endif
|
|
|
1459 free (wv->args->args);
|
|
|
1460 free (wv->args);
|
|
442
|
1461 wv->args = 0;
|
|
434
|
1462 }
|
|
|
1463 }
|
|
|
1464 }
|
|
|
1465
|
|
|
1466 void lw_copy_widget_value_args (widget_value* val, widget_value* copy)
|
|
|
1467 {
|
|
442
|
1468 if (val == copy || val->args == copy->args)
|
|
|
1469 return;
|
|
|
1470
|
|
|
1471 if (copy->args)
|
|
434
|
1472 {
|
|
442
|
1473 free_widget_value_args (copy);
|
|
434
|
1474 }
|
|
442
|
1475
|
|
|
1476 if (val->args)
|
|
434
|
1477 {
|
|
|
1478 copy->args = val->args;
|
|
|
1479 copy->args->ref_count++;
|
|
|
1480 }
|
|
|
1481 }
|
|
|
1482
|
|
442
|
1483 /* Remove %_ and convert %% to %. We can do this in-place because we
|
|
|
1484 are always shortening, never lengthening, the string. */
|
|
|
1485 void
|
|
|
1486 lw_remove_accelerator_spec (char *val)
|
|
|
1487 {
|
|
|
1488 char *foo = val, *bar = val;
|
|
|
1489
|
|
|
1490 while (*bar)
|
|
|
1491 {
|
|
|
1492 if (*bar == '%' && *(bar+1) == '_')
|
|
|
1493 bar += 2;
|
|
|
1494 else if (*bar == '%' && *(bar+1) == '%')
|
|
|
1495 {
|
|
|
1496 *foo++ = *bar++;
|
|
|
1497 bar++;
|
|
|
1498 }
|
|
|
1499 else
|
|
|
1500 *foo++ = *bar++;
|
|
|
1501 }
|
|
|
1502 *foo = '\0';
|
|
|
1503 }
|
