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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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1201
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199 merge_scrollbar_values (widget_value *old, widget_value *new_)
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428
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200 {
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201 Boolean changed = False;
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202
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1201
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203 if (new_->scrollbar_data && !old->scrollbar_data)
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428
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204 {
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1201
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205 copy_scrollbar_values (new_, old);
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428
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206 changed = True;
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207 }
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1201
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208 else if (!new_->scrollbar_data && old->scrollbar_data)
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428
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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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1201
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213 else if (new_->scrollbar_data && old->scrollbar_data)
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428
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214 {
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215 scrollbar_values *old_sb = old->scrollbar_data;
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1201
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216 scrollbar_values *new_sb = new_->scrollbar_data;
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428
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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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|
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319 widget_value *
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|
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320 replace_widget_value_tree (widget_value *node, widget_value *newtree)
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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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|
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339 lw_callback post_activate_cb)
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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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348 info->selection_cb = selection_cb;
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349 info->post_activate_cb = post_activate_cb;
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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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|
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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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|
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357
|
|
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358 static void
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|
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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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|
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362 safe_free_str (info->name);
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|
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363 free_widget_value_tree (info->val);
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|
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
|
|
2286
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369 mark_widget_destroyed (Widget widget, XtPointer closure,
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|
|
370 XtPointer UNUSED (call_data))
|
|
428
|
371 {
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|
|
372 widget_instance *instance = (widget_instance*)closure;
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|
|
373
|
|
|
374 /* be very conservative */
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|
|
375 if (instance->widget == widget)
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|
|
376 instance->widget = NULL;
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|
|
377 }
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|
|
378
|
|
|
379 static widget_instance *
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|
|
380 allocate_widget_instance (widget_info *info, Widget parent, Boolean pop_up_p)
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|
|
381 {
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|
|
382 widget_instance *instance =
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|
|
383 (widget_instance *) malloc (sizeof (widget_instance));
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|
|
384 instance->parent = parent;
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|
|
385 instance->pop_up_p = pop_up_p;
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|
|
386 instance->info = info;
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|
|
387 instance->next = info->instances;
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|
|
388 info->instances = instance;
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|
|
389
|
|
|
390 instantiate_widget_instance (instance);
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|
|
391
|
|
|
392 XtAddCallback (instance->widget, XtNdestroyCallback,
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|
|
393 mark_widget_destroyed, (XtPointer)instance);
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|
|
394 return instance;
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|
|
395 }
|
|
|
396
|
|
|
397 static void
|
|
|
398 free_widget_instance (widget_instance *instance)
|
|
|
399 {
|
|
438
|
400 memset (instance, '\0', sizeof (widget_instance));
|
|
428
|
401 free (instance);
|
|
|
402 }
|
|
|
403
|
|
|
404 static widget_info *
|
|
|
405 get_widget_info (LWLIB_ID id, Boolean remove_p)
|
|
|
406 {
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|
|
407 widget_info *info;
|
|
|
408 widget_info *prev;
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|
|
409 for (prev = NULL, info = all_widget_info;
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|
|
410 info;
|
|
|
411 prev = info, info = info->next)
|
|
|
412 if (info->id == id)
|
|
|
413 {
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|
|
414 if (remove_p)
|
|
|
415 {
|
|
|
416 if (prev)
|
|
|
417 prev->next = info->next;
|
|
|
418 else
|
|
|
419 all_widget_info = info->next;
|
|
|
420 }
|
|
|
421 return info;
|
|
|
422 }
|
|
|
423 return NULL;
|
|
|
424 }
|
|
|
425
|
|
|
426 /* Internal function used by the library dependent implementation to get the
|
|
|
427 widget_value for a given widget in an instance */
|
|
|
428 widget_info *
|
|
|
429 lw_get_widget_info (LWLIB_ID id)
|
|
|
430 {
|
|
|
431 return get_widget_info (id, 0);
|
|
|
432 }
|
|
|
433
|
|
|
434 static int
|
|
|
435 map_widget_values (widget_value *value, int (*mapfunc) (widget_value *value,
|
|
|
436 void *closure),
|
|
|
437 void *closure)
|
|
|
438 {
|
|
|
439 int retval = 0;
|
|
|
440
|
|
|
441 if (value->contents)
|
|
|
442 retval = map_widget_values (value->contents, mapfunc, closure);
|
|
|
443 if (retval)
|
|
|
444 return retval;
|
|
|
445
|
|
|
446 if (value->next)
|
|
|
447 retval = map_widget_values (value->next, mapfunc, closure);
|
|
|
448 if (retval)
|
|
|
449 return retval;
|
|
|
450
|
|
|
451 return (mapfunc) (value, closure);
|
|
|
452 }
|
|
|
453
|
|
|
454 int
|
|
|
455 lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
|
|
|
456 void *closure),
|
|
|
457 void *closure)
|
|
|
458 {
|
|
|
459 widget_info *info = get_widget_info (id, 0);
|
|
|
460
|
|
|
461 if (!info)
|
|
|
462 abort ();
|
|
|
463
|
|
|
464 if (info->val)
|
|
|
465 return map_widget_values (info->val, mapfunc, closure);
|
|
|
466 return 0;
|
|
|
467 }
|
|
|
468
|
|
|
469 static widget_instance *
|
|
|
470 get_widget_instance (Widget widget, Boolean remove_p)
|
|
|
471 {
|
|
|
472 widget_info *info;
|
|
|
473 widget_instance *instance;
|
|
|
474 widget_instance *prev;
|
|
|
475 for (info = all_widget_info; info; info = info->next)
|
|
|
476 for (prev = NULL, instance = info->instances;
|
|
|
477 instance;
|
|
|
478 prev = instance, instance = instance->next)
|
|
|
479 if (instance->widget == widget)
|
|
|
480 {
|
|
|
481 if (remove_p)
|
|
|
482 {
|
|
|
483 if (prev)
|
|
|
484 prev->next = instance->next;
|
|
|
485 else
|
|
|
486 info->instances = instance->next;
|
|
|
487 }
|
|
|
488 return instance;
|
|
|
489 }
|
|
|
490 return (widget_instance *) 0;
|
|
|
491 }
|
|
|
492
|
|
|
493 static widget_instance*
|
|
|
494 find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
495 {
|
|
|
496 widget_info *info = get_widget_info (id, False);
|
|
|
497 widget_instance *instance;
|
|
|
498
|
|
|
499 if (info)
|
|
|
500 for (instance = info->instances; instance; instance = instance->next)
|
|
|
501 if (instance->parent == parent && instance->pop_up_p == pop_up_p)
|
|
|
502 return instance;
|
|
|
503
|
|
|
504 return NULL;
|
|
|
505 }
|
|
|
506
|
|
|
507
|
|
|
508 /* utility function for widget_value */
|
|
|
509 static Boolean
|
|
442
|
510 safe_strcmp (const char *s1, const char *s2)
|
|
428
|
511 {
|
|
|
512 if (!!s1 ^ !!s2) return True;
|
|
|
513 return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
|
|
|
514 }
|
|
|
515
|
|
|
516 #if 0
|
|
|
517 # define EXPLAIN(name, oc, nc, desc, a1, a2) \
|
|
|
518 printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
|
|
|
519 name, \
|
|
|
520 (oc == NO_CHANGE ? "none" : \
|
|
|
521 (oc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
522 (oc == VISIBLE_CHANGE ? "visible" : \
|
|
|
523 (oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
524 oc, \
|
|
|
525 (nc == NO_CHANGE ? "none" : \
|
|
|
526 (nc == INVISIBLE_CHANGE ? "invisible" : \
|
|
|
527 (nc == VISIBLE_CHANGE ? "visible" : \
|
|
|
528 (nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
|
|
|
529 nc, desc, a1, a2)
|
|
|
530 #else
|
|
|
531 # define EXPLAIN(name, oc, nc, desc, a1, a2)
|
|
|
532 #endif
|
|
|
533
|
|
|
534
|
|
|
535 static widget_value *
|
|
|
536 merge_widget_value (widget_value *val1, widget_value *val2, int level)
|
|
|
537 {
|
|
|
538 change_type change;
|
|
|
539 widget_value *merged_next;
|
|
|
540 widget_value *merged_contents;
|
|
|
541
|
|
|
542 if (!val1)
|
|
|
543 {
|
|
|
544 if (val2)
|
|
|
545 return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
|
|
|
546 else
|
|
|
547 return NULL;
|
|
|
548 }
|
|
|
549 if (!val2)
|
|
|
550 {
|
|
|
551 free_widget_value_tree (val1);
|
|
|
552 return NULL;
|
|
|
553 }
|
|
|
554
|
|
|
555 change = NO_CHANGE;
|
|
|
556
|
|
|
557 if (val1->type != val2->type)
|
|
|
558 {
|
|
|
559 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "type change",
|
|
|
560 val1->type, val2->type);
|
|
|
561 change = max (change, STRUCTURAL_CHANGE);
|
|
|
562 val1->type = val2->type;
|
|
|
563 }
|
|
|
564 if (safe_strcmp (val1->name, val2->name))
|
|
|
565 {
|
|
|
566 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
|
|
|
567 val1->name, val2->name);
|
|
|
568 change = max (change, STRUCTURAL_CHANGE);
|
|
|
569 safe_free_str (val1->name);
|
|
|
570 val1->name = safe_strdup (val2->name);
|
|
|
571 }
|
|
|
572 if (safe_strcmp (val1->value, val2->value))
|
|
|
573 {
|
|
|
574 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
|
|
575 val1->value, val2->value);
|
|
|
576 change = max (change, VISIBLE_CHANGE);
|
|
|
577 safe_free_str (val1->value);
|
|
|
578 val1->value = safe_strdup (val2->value);
|
|
|
579 }
|
|
|
580 if (safe_strcmp (val1->key, val2->key))
|
|
|
581 {
|
|
|
582 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
|
|
|
583 val1->key, val2->key);
|
|
|
584 change = max (change, VISIBLE_CHANGE);
|
|
|
585 safe_free_str (val1->key);
|
|
|
586 val1->key = safe_strdup (val2->key);
|
|
|
587 }
|
|
|
588 if (val1->accel != val2->accel)
|
|
|
589 {
|
|
|
590 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "accelerator change",
|
|
|
591 val1->accel, val2->accel);
|
|
|
592 change = max (change, VISIBLE_CHANGE);
|
|
|
593 val1->accel = val2->accel;
|
|
|
594 }
|
|
|
595 if (val1->enabled != val2->enabled)
|
|
|
596 {
|
|
|
597 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
|
|
|
598 val1->enabled, val2->enabled);
|
|
|
599 change = max (change, VISIBLE_CHANGE);
|
|
|
600 val1->enabled = val2->enabled;
|
|
|
601 }
|
|
|
602 if (val1->selected != val2->selected)
|
|
|
603 {
|
|
|
604 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
|
|
605 val1->selected, val2->selected);
|
|
|
606 change = max (change, VISIBLE_CHANGE);
|
|
|
607 val1->selected = val2->selected;
|
|
|
608 }
|
|
|
609 if (val1->call_data != val2->call_data)
|
|
|
610 {
|
|
|
611 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
|
|
612 val1->call_data, val2->call_data);
|
|
|
613 change = max (change, INVISIBLE_CHANGE);
|
|
|
614 val1->call_data = val2->call_data;
|
|
|
615 }
|
|
771
|
616 #ifdef HAVE_X_WIDGETS
|
|
434
|
617 if (merge_widget_value_args (val1, val2))
|
|
|
618 {
|
|
|
619 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "widget change", 0, 0);
|
|
|
620 change = max (change, VISIBLE_CHANGE);
|
|
|
621 }
|
|
|
622 #endif
|
|
|
623
|
|
428
|
624 #ifdef NEED_SCROLLBARS
|
|
|
625 if (merge_scrollbar_values (val1, val2))
|
|
|
626 {
|
|
|
627 EXPLAIN (val1->name, change, VISIBLE_CHANGE, "scrollbar change", 0, 0);
|
|
|
628 change = max (change, VISIBLE_CHANGE);
|
|
|
629 }
|
|
|
630 #endif
|
|
|
631
|
|
|
632 if (level > 0)
|
|
|
633 {
|
|
|
634 merged_contents =
|
|
|
635 merge_widget_value (val1->contents, val2->contents, level - 1);
|
|
|
636
|
|
|
637 if (val1->contents && !merged_contents)
|
|
|
638 {
|
|
|
639 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents gone)",
|
|
|
640 0, 0);
|
|
|
641 change = max (change, INVISIBLE_CHANGE);
|
|
|
642 }
|
|
|
643 else if (merged_contents && merged_contents->change != NO_CHANGE)
|
|
|
644 {
|
|
|
645 EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
|
|
646 0, 0);
|
|
|
647 change = max (change, INVISIBLE_CHANGE);
|
|
|
648 }
|
|
|
649
|
|
|
650 val1->contents = merged_contents;
|
|
|
651 }
|
|
|
652
|
|
|
653 merged_next = merge_widget_value (val1->next, val2->next, level);
|
|
|
654
|
|
|
655 if (val1->next && !merged_next)
|
|
|
656 {
|
|
|
657 EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
|
|
658 0, 0);
|
|
|
659 change = max (change, STRUCTURAL_CHANGE);
|
|
|
660 }
|
|
|
661 else if (merged_next)
|
|
|
662 {
|
|
|
663 if (merged_next->change)
|
|
|
664 {
|
|
|
665 EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
|
|
666 0, 0);
|
|
2286
|
667 change = max (change, merged_next->change);
|
|
428
|
668 }
|
|
|
669 }
|
|
|
670
|
|
|
671 val1->next = merged_next;
|
|
|
672
|
|
|
673 val1->change = change;
|
|
|
674
|
|
|
675 if (change > NO_CHANGE && val1->toolkit_data)
|
|
|
676 {
|
|
|
677 if (val1->free_toolkit_data)
|
|
|
678 XtFree ((char *) val1->toolkit_data);
|
|
|
679 val1->toolkit_data = NULL;
|
|
|
680 }
|
|
|
681
|
|
|
682 return val1;
|
|
|
683 }
|
|
|
684
|
|
|
685
|
|
|
686 /* modifying the widgets */
|
|
|
687 static Widget
|
|
442
|
688 name_to_widget (widget_instance *instance, const char *name)
|
|
428
|
689 {
|
|
|
690 Widget widget = NULL;
|
|
|
691
|
|
|
692 if (!instance->widget)
|
|
|
693 return NULL;
|
|
|
694
|
|
|
695 if (!strcmp (XtName (instance->widget), name))
|
|
|
696 widget = instance->widget;
|
|
|
697 else
|
|
|
698 {
|
|
|
699 int length = strlen (name) + 2;
|
|
|
700 char *real_name = (char *) alloca (length);
|
|
|
701 real_name [0] = '*';
|
|
|
702 strcpy (real_name + 1, name);
|
|
|
703
|
|
|
704 widget = XtNameToWidget (instance->widget, real_name);
|
|
|
705 }
|
|
|
706 return widget;
|
|
|
707 }
|
|
|
708
|
|
|
709 static void
|
|
|
710 set_one_value (widget_instance *instance, widget_value *val, Boolean deep_p)
|
|
|
711 {
|
|
|
712 Widget widget = name_to_widget (instance, val->name);
|
|
|
713
|
|
|
714 if (widget)
|
|
|
715 {
|
|
|
716 #ifdef NEED_LUCID
|
|
|
717 if (lw_lucid_widget_p (instance->widget))
|
|
|
718 xlw_update_one_widget (instance, widget, val, deep_p);
|
|
|
719 #endif
|
|
|
720 #ifdef NEED_MOTIF
|
|
|
721 if (lw_motif_widget_p (instance->widget))
|
|
|
722 xm_update_one_widget (instance, widget, val, deep_p);
|
|
|
723 #endif
|
|
|
724 #ifdef NEED_ATHENA
|
|
|
725 if (lw_xaw_widget_p (instance->widget))
|
|
|
726 xaw_update_one_widget (instance, widget, val, deep_p);
|
|
|
727 #endif
|
|
|
728 }
|
|
|
729 }
|
|
|
730
|
|
|
731 static void
|
|
|
732 update_one_widget_instance (widget_instance *instance, Boolean deep_p)
|
|
|
733 {
|
|
|
734 widget_value *val;
|
|
|
735
|
|
|
736 if (!instance->widget)
|
|
|
737 /* the widget was destroyed */
|
|
|
738 return;
|
|
|
739
|
|
|
740 for (val = instance->info->val; val; val = val->next)
|
|
|
741 if (val->change != NO_CHANGE)
|
|
|
742 set_one_value (instance, val, deep_p);
|
|
|
743 }
|
|
|
744
|
|
|
745 static void
|
|
|
746 update_all_widget_values (widget_info *info, Boolean deep_p)
|
|
|
747 {
|
|
|
748 widget_instance *instance;
|
|
|
749 widget_value *val;
|
|
|
750
|
|
|
751 for (instance = info->instances; instance; instance = instance->next)
|
|
|
752 update_one_widget_instance (instance, deep_p);
|
|
|
753
|
|
|
754 for (val = info->val; val; val = val->next)
|
|
450
|
755 {
|
|
|
756 val->change = NO_CHANGE;
|
|
|
757 if (val->args)
|
|
|
758 val->args->args_changed = False;
|
|
|
759 }
|
|
428
|
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)
|
|
450
|
824 {
|
|
|
825 val->change = NO_CHANGE;
|
|
|
826 if (val->args)
|
|
|
827 val->args->args_changed = False;
|
|
|
828 }
|
|
428
|
829 }
|
|
|
830
|
|
1201
|
831 #if defined (NEED_LUCID) || defined (NEED_ATHENA) || defined (NEED_MOTIF)
|
|
|
832
|
|
442
|
833 /* strcasecmp() is not sufficiently portable or standard,
|
|
|
834 and it's easier just to write our own. */
|
|
|
835 static int
|
|
|
836 ascii_strcasecmp (const char *s1, const char *s2)
|
|
|
837 {
|
|
|
838 while (1)
|
|
|
839 {
|
|
|
840 char c1 = *s1++;
|
|
|
841 char c2 = *s2++;
|
|
|
842 if (c1 >= 'A' && c1 <= 'Z') c1 += 'a' - 'A';
|
|
|
843 if (c2 >= 'A' && c2 <= 'Z') c2 += 'a' - 'A';
|
|
|
844 if (c1 != c2) return c1 - c2;
|
|
|
845 if (c1 == '\0') return 0;
|
|
|
846 }
|
|
|
847 }
|
|
428
|
848
|
|
|
849 static widget_creation_function
|
|
450
|
850 find_in_table (const char *type, const widget_creation_entry table[])
|
|
428
|
851 {
|
|
450
|
852 const widget_creation_entry *cur;
|
|
428
|
853 for (cur = table; cur->type; cur++)
|
|
442
|
854 if (!ascii_strcasecmp (type, cur->type))
|
|
428
|
855 return cur->function;
|
|
|
856 return NULL;
|
|
|
857 }
|
|
|
858
|
|
872
|
859 #endif
|
|
|
860
|
|
428
|
861 static Boolean
|
|
442
|
862 dialog_spec_p (const char *name)
|
|
428
|
863 {
|
|
|
864 /* return True if name matches [EILPQeilpq][1-9][Bb] or
|
|
|
865 [EILPQeilpq][1-9][Bb][Rr][1-9] */
|
|
|
866 if (!name)
|
|
|
867 return False;
|
|
|
868
|
|
|
869 switch (name [0])
|
|
|
870 {
|
|
|
871 case 'E': case 'I': case 'L': case 'P': case 'Q':
|
|
|
872 case 'e': case 'i': case 'l': case 'p': case 'q':
|
|
|
873 if (name [1] >= '0' && name [1] <= '9')
|
|
|
874 {
|
|
|
875 if (name [2] != 'B' && name [2] != 'b')
|
|
|
876 return False;
|
|
|
877 if (!name [3])
|
|
|
878 return True;
|
|
|
879 if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
|
|
880 return True;
|
|
|
881 if ((name [3] == 'R' || name [3] == 'r')
|
|
|
882 && name [4] >= '0' && name [4] <= '9' && !name [5])
|
|
|
883 return True;
|
|
|
884 return False;
|
|
|
885 }
|
|
|
886 else
|
|
|
887 return False;
|
|
|
888
|
|
|
889 default:
|
|
|
890 return False;
|
|
|
891 }
|
|
|
892 }
|
|
|
893
|
|
|
894 static void
|
|
|
895 instantiate_widget_instance (widget_instance *instance)
|
|
|
896 {
|
|
|
897 widget_creation_function function = NULL;
|
|
|
898
|
|
|
899 #ifdef NEED_LUCID
|
|
|
900 if (!function)
|
|
|
901 function = find_in_table (instance->info->type, xlw_creation_table);
|
|
|
902 #endif
|
|
|
903 #ifdef NEED_MOTIF
|
|
|
904 if (!function)
|
|
|
905 function = find_in_table (instance->info->type, xm_creation_table);
|
|
|
906 #endif
|
|
|
907 #ifdef NEED_ATHENA
|
|
|
908 if (!function)
|
|
|
909 function = find_in_table (instance->info->type, xaw_creation_table);
|
|
|
910 #endif
|
|
|
911
|
|
|
912 if (!function)
|
|
|
913 {
|
|
|
914 if (dialog_spec_p (instance->info->type))
|
|
|
915 {
|
|
|
916 #ifdef LWLIB_DIALOGS_MOTIF
|
|
|
917 if (!function)
|
|
|
918 function = xm_create_dialog;
|
|
|
919 #endif
|
|
|
920 #ifdef LWLIB_DIALOGS_ATHENA
|
|
|
921 if (!function)
|
|
|
922 function = xaw_create_dialog;
|
|
|
923 #endif
|
|
|
924 #ifdef LWLIB_DIALOGS_LUCID
|
|
|
925 /* not yet (not ever?) */
|
|
|
926 #endif
|
|
|
927 }
|
|
|
928 }
|
|
|
929
|
|
|
930 if (!function)
|
|
|
931 {
|
|
|
932 fprintf (stderr, "No creation function for widget type %s\n",
|
|
|
933 instance->info->type);
|
|
|
934 abort ();
|
|
|
935 }
|
|
|
936
|
|
|
937 instance->widget = (*function) (instance);
|
|
|
938
|
|
|
939 if (!instance->widget)
|
|
|
940 abort ();
|
|
|
941
|
|
|
942 /* XtRealizeWidget (instance->widget);*/
|
|
|
943 }
|
|
|
944
|
|
|
945 void
|
|
442
|
946 lw_register_widget (const char *type, const char *name,
|
|
428
|
947 LWLIB_ID id, widget_value *val,
|
|
|
948 lw_callback pre_activate_cb, lw_callback selection_cb,
|
|
|
949 lw_callback post_activate_cb)
|
|
|
950 {
|
|
|
951 if (!get_widget_info (id, False))
|
|
|
952 allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
953 post_activate_cb);
|
|
|
954 }
|
|
|
955
|
|
|
956 Widget
|
|
|
957 lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
958 {
|
|
|
959 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
960 return instance ? instance->widget : NULL;
|
|
|
961 }
|
|
|
962
|
|
|
963 Widget
|
|
|
964 lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
|
|
965 {
|
|
|
966 widget_instance *instance = find_instance (id, parent, pop_up_p);
|
|
|
967
|
|
|
968 if (!instance)
|
|
|
969 {
|
|
|
970 widget_info *info = get_widget_info (id, False);
|
|
|
971 if (!info)
|
|
|
972 return NULL;
|
|
|
973 instance = allocate_widget_instance (info, parent, pop_up_p);
|
|
|
974 initialize_widget_instance (instance);
|
|
|
975 }
|
|
|
976 if (!instance->widget)
|
|
|
977 abort ();
|
|
|
978 return instance->widget;
|
|
|
979 }
|
|
|
980
|
|
|
981 Widget
|
|
442
|
982 lw_create_widget (const char *type, const char *name,
|
|
428
|
983 LWLIB_ID id, widget_value *val,
|
|
|
984 Widget parent, Boolean pop_up_p, lw_callback pre_activate_cb,
|
|
|
985 lw_callback selection_cb, lw_callback post_activate_cb)
|
|
|
986 {
|
|
|
987 lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
|
|
988 post_activate_cb);
|
|
|
989 return lw_make_widget (id, parent, pop_up_p);
|
|
|
990 }
|
|
|
991
|
|
|
992
|
|
|
993 /* destroying the widgets */
|
|
|
994 static void
|
|
|
995 destroy_one_instance (widget_instance *instance)
|
|
|
996 {
|
|
|
997 /* Remove the destroy callback on the widget; that callback will try to
|
|
|
998 dereference the instance object (to set its widget slot to 0, since the
|
|
|
999 widget is dead.) Since the instance is now dead, we don't have to worry
|
|
|
1000 about the fact that its widget is dead too.
|
|
|
1001
|
|
|
1002 This happens in the Phase2Destroy of the widget, so this callback would
|
|
|
1003 not have been run until arbitrarily long after the instance was freed.
|
|
|
1004 */
|
|
|
1005 if (instance->widget)
|
|
|
1006 XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
|
|
1007 mark_widget_destroyed, (XtPointer)instance);
|
|
|
1008
|
|
|
1009 if (instance->widget)
|
|
|
1010 {
|
|
|
1011 /* The else are pretty tricky here, including the empty statement
|
|
|
1012 at the end because it would be very bad to destroy a widget
|
|
|
1013 twice. */
|
|
|
1014 #ifdef NEED_LUCID
|
|
|
1015 if (lw_lucid_widget_p (instance->widget))
|
|
|
1016 xlw_destroy_instance (instance);
|
|
|
1017 else
|
|
|
1018 #endif
|
|
|
1019 #ifdef NEED_MOTIF
|
|
|
1020 if (lw_motif_widget_p (instance->widget))
|
|
|
1021 xm_destroy_instance (instance);
|
|
|
1022 else
|
|
|
1023 #endif
|
|
|
1024 #ifdef NEED_ATHENA
|
|
|
1025 if (lw_xaw_widget_p (instance->widget))
|
|
|
1026 xaw_destroy_instance (instance);
|
|
|
1027 else
|
|
|
1028 #endif
|
|
|
1029 {
|
|
|
1030 /* do not remove the empty statement */
|
|
|
1031 ;
|
|
|
1032 }
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 free_widget_instance (instance);
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 void
|
|
|
1039 lw_destroy_widget (Widget w)
|
|
|
1040 {
|
|
|
1041 widget_instance *instance = get_widget_instance (w, True);
|
|
|
1042
|
|
|
1043 if (instance)
|
|
|
1044 {
|
|
|
1045 widget_info *info = instance->info;
|
|
|
1046 /* instance has already been removed from the list; free it */
|
|
|
1047 destroy_one_instance (instance);
|
|
|
1048 /* if there are no instances left, free the info too */
|
|
|
1049 if (!info->instances)
|
|
|
1050 lw_destroy_all_widgets (info->id);
|
|
|
1051 }
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 void
|
|
|
1055 lw_destroy_all_widgets (LWLIB_ID id)
|
|
|
1056 {
|
|
|
1057 widget_info *info = get_widget_info (id, True);
|
|
|
1058 widget_instance *instance;
|
|
|
1059 widget_instance *next;
|
|
|
1060
|
|
|
1061 if (info)
|
|
|
1062 {
|
|
|
1063 for (instance = info->instances; instance; )
|
|
|
1064 {
|
|
|
1065 next = instance->next;
|
|
|
1066 destroy_one_instance (instance);
|
|
|
1067 instance = next;
|
|
|
1068 }
|
|
|
1069 free_widget_info (info);
|
|
|
1070 }
|
|
|
1071 }
|
|
|
1072
|
|
|
1073 void
|
|
442
|
1074 lw_destroy_everything (void)
|
|
428
|
1075 {
|
|
|
1076 while (all_widget_info)
|
|
|
1077 lw_destroy_all_widgets (all_widget_info->id);
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 void
|
|
442
|
1081 lw_destroy_all_pop_ups (void)
|
|
428
|
1082 {
|
|
|
1083 widget_info *info;
|
|
|
1084 widget_info *next;
|
|
|
1085 widget_instance *instance;
|
|
|
1086
|
|
|
1087 for (info = all_widget_info; info; info = next)
|
|
|
1088 {
|
|
|
1089 next = info->next;
|
|
|
1090 instance = info->instances;
|
|
|
1091 if (instance && instance->pop_up_p)
|
|
|
1092 lw_destroy_all_widgets (info->id);
|
|
|
1093 }
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 Widget
|
|
|
1097 lw_raise_all_pop_up_widgets (void)
|
|
|
1098 {
|
|
|
1099 widget_info *info;
|
|
|
1100 widget_instance *instance;
|
|
|
1101 Widget result = NULL;
|
|
|
1102
|
|
|
1103 for (info = all_widget_info; info; info = info->next)
|
|
|
1104 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1105 if (instance->pop_up_p)
|
|
|
1106 {
|
|
|
1107 Widget widget = instance->widget;
|
|
|
1108 if (widget)
|
|
|
1109 {
|
|
|
1110 if (XtIsManaged (widget)
|
|
|
1111 #ifdef NEED_MOTIF
|
|
|
1112 /* What a complete load of crap!!!!
|
|
|
1113 When a dialogShell is on the screen, it is not managed!
|
|
|
1114 */
|
|
|
1115 || (lw_motif_widget_p (instance->widget) &&
|
|
|
1116 XtIsManaged (first_child (widget)))
|
|
|
1117 #endif
|
|
|
1118 )
|
|
|
1119 {
|
|
|
1120 if (!result)
|
|
|
1121 result = widget;
|
|
|
1122 XMapRaised (XtDisplay (widget), XtWindow (widget));
|
|
|
1123 }
|
|
|
1124 }
|
|
|
1125 }
|
|
|
1126 return result;
|
|
|
1127 }
|
|
|
1128
|
|
|
1129 static void
|
|
|
1130 lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
|
|
1131 {
|
|
|
1132 widget_info *info = get_widget_info (id, False);
|
|
|
1133 widget_instance *instance;
|
|
|
1134
|
|
|
1135 if (info)
|
|
|
1136 for (instance = info->instances; instance; instance = instance->next)
|
|
|
1137 if (instance->pop_up_p && instance->widget)
|
|
|
1138 {
|
|
|
1139 #ifdef NEED_LUCID
|
|
|
1140 if (lw_lucid_widget_p (instance->widget))
|
|
|
1141 {
|
|
|
1142 XtRealizeWidget (instance->widget);
|
|
|
1143 xlw_pop_instance (instance, up);
|
|
|
1144 }
|
|
|
1145 #endif
|
|
|
1146 #ifdef NEED_MOTIF
|
|
|
1147 if (lw_motif_widget_p (instance->widget))
|
|
|
1148 {
|
|
|
1149 XtRealizeWidget (instance->widget);
|
|
|
1150 xm_pop_instance (instance, up);
|
|
|
1151 }
|
|
|
1152 #endif
|
|
|
1153 #ifdef NEED_ATHENA
|
|
|
1154 if (lw_xaw_widget_p (instance->widget))
|
|
|
1155 {
|
|
|
1156 XtRealizeWidget (XtParent (instance->widget));
|
|
|
1157 XtRealizeWidget (instance->widget);
|
|
|
1158 xaw_pop_instance (instance, up);
|
|
|
1159 }
|
|
|
1160 #endif
|
|
|
1161 }
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 void
|
|
|
1165 lw_pop_up_all_widgets (LWLIB_ID id)
|
|
|
1166 {
|
|
|
1167 lw_pop_all_widgets (id, True);
|
|
|
1168 }
|
|
|
1169
|
|
|
1170 void
|
|
|
1171 lw_pop_down_all_widgets (LWLIB_ID id)
|
|
|
1172 {
|
|
|
1173 lw_pop_all_widgets (id, False);
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 void
|
|
|
1177 lw_popup_menu (Widget widget, XEvent *event)
|
|
|
1178 {
|
|
|
1179 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
1180 if (lw_lucid_widget_p (widget))
|
|
|
1181 xlw_popup_menu (widget, event);
|
|
|
1182 #endif
|
|
|
1183 #ifdef LWLIB_MENUBARS_MOTIF
|
|
|
1184 if (lw_motif_widget_p (widget))
|
|
|
1185 xm_popup_menu (widget, event);
|
|
|
1186 #endif
|
|
|
1187 #ifdef LWLIB_MENUBARS_ATHENA
|
|
|
1188 if (lw_xaw_widget_p (widget))
|
|
|
1189 xaw_popup_menu (widget, event); /* not implemented */
|
|
|
1190 #endif
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 /* get the values back */
|
|
|
1194 static Boolean
|
|
|
1195 get_one_value (widget_instance *instance, widget_value *val)
|
|
|
1196 {
|
|
|
1197 Widget widget = name_to_widget (instance, val->name);
|
|
|
1198
|
|
|
1199 if (widget)
|
|
|
1200 {
|
|
|
1201 #ifdef NEED_LUCID
|
|
|
1202 if (lw_lucid_widget_p (instance->widget))
|
|
|
1203 xlw_update_one_value (instance, widget, val);
|
|
|
1204 #endif
|
|
|
1205 #ifdef NEED_MOTIF
|
|
|
1206 if (lw_motif_widget_p (instance->widget))
|
|
|
1207 xm_update_one_value (instance, widget, val);
|
|
|
1208 #endif
|
|
|
1209 #ifdef NEED_ATHENA
|
|
|
1210 if (lw_xaw_widget_p (instance->widget))
|
|
|
1211 xaw_update_one_value (instance, widget, val);
|
|
|
1212 #endif
|
|
|
1213 return True;
|
|
|
1214 }
|
|
|
1215 else
|
|
|
1216 return False;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 Boolean
|
|
|
1220 lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
|
|
1221 {
|
|
|
1222 widget_info *info = get_widget_info (id, False);
|
|
|
1223 widget_instance *instance;
|
|
|
1224 widget_value *val;
|
|
|
1225 Boolean result = False;
|
|
|
1226
|
|
|
1227 if (!info)
|
|
|
1228 return False;
|
|
|
1229
|
|
|
1230 instance = info->instances;
|
|
|
1231 if (!instance)
|
|
|
1232 return False;
|
|
|
1233
|
|
|
1234 for (val = val_out; val; val = val->next)
|
|
|
1235 if (get_one_value (instance, val))
|
|
|
1236 result = True;
|
|
|
1237
|
|
|
1238 return result;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241 widget_value*
|
|
|
1242 lw_get_all_values (LWLIB_ID id)
|
|
|
1243 {
|
|
|
1244 widget_info *info = get_widget_info (id, False);
|
|
|
1245 widget_value *val = info->val;
|
|
|
1246 if (lw_get_some_values (id, val))
|
|
|
1247 return val;
|
|
|
1248 else
|
|
|
1249 return NULL;
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 /* internal function used by the library dependent implementation to get the
|
|
|
1253 widget_value for a given widget in an instance */
|
|
|
1254 widget_value*
|
|
|
1255 lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
|
|
1256 {
|
|
|
1257 char *name = XtName (w);
|
|
|
1258 widget_value *cur;
|
|
|
1259 for (cur = instance->info->val; cur; cur = cur->next)
|
|
|
1260 if (!strcmp (cur->name, name))
|
|
|
1261 return cur;
|
|
|
1262 return NULL;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265
|
|
|
1266 /* update other instances value when one thing changed */
|
|
|
1267 /* This function can be used as a an XtCallback for the widgets that get
|
|
|
1268 modified to update other instances of the widgets. Closure should be the
|
|
|
1269 widget_instance. */
|
|
|
1270 void
|
|
|
1271 lw_internal_update_other_instances (Widget widget, XtPointer closure,
|
|
2286
|
1272 XtPointer UNUSED (call_data))
|
|
428
|
1273 {
|
|
|
1274 /* To forbid recursive calls */
|
|
|
1275 static Boolean updating;
|
|
|
1276
|
|
|
1277 widget_instance *instance = (widget_instance*)closure;
|
|
|
1278 char *name = XtName (widget);
|
|
|
1279 widget_info *info;
|
|
|
1280 widget_instance *cur;
|
|
|
1281 widget_value *val;
|
|
|
1282
|
|
|
1283 /* never recurse as this could cause infinite recursions. */
|
|
|
1284 if (updating)
|
|
|
1285 return;
|
|
|
1286
|
|
|
1287 /* protect against the widget being destroyed */
|
|
|
1288 if (XtWidgetBeingDestroyedP (widget))
|
|
|
1289 return;
|
|
|
1290
|
|
|
1291 /* Return immediately if there are no other instances */
|
|
|
1292 info = instance->info;
|
|
|
1293 if (!info->instances->next)
|
|
|
1294 return;
|
|
|
1295
|
|
|
1296 updating = True;
|
|
|
1297
|
|
|
1298 for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
|
|
1299
|
|
|
1300 if (val && get_one_value (instance, val))
|
|
|
1301 for (cur = info->instances; cur; cur = cur->next)
|
|
|
1302 if (cur != instance)
|
|
|
1303 set_one_value (cur, val, True);
|
|
|
1304
|
|
|
1305 updating = False;
|
|
|
1306 }
|
|
|
1307
|
|
|
1308
|
|
|
1309
|
|
|
1310 /* get the id */
|
|
|
1311
|
|
|
1312 LWLIB_ID
|
|
|
1313 lw_get_widget_id (Widget w)
|
|
|
1314 {
|
|
|
1315 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1316
|
|
|
1317 return instance ? instance->info->id : 0;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320
|
|
|
1321 /* set the keyboard focus */
|
|
|
1322 void
|
|
|
1323 lw_set_keyboard_focus (Widget parent, Widget w)
|
|
|
1324 {
|
|
|
1325 #if defined(NEED_MOTIF) && !defined(LESSTIF_VERSION)
|
|
|
1326 /* This loses with Lesstif v0.75a */
|
|
|
1327 xm_set_keyboard_focus (parent, w);
|
|
|
1328 #else
|
|
|
1329 XtSetKeyboardFocus (parent, w);
|
|
|
1330 #endif
|
|
|
1331 }
|
|
|
1332
|
|
|
1333
|
|
|
1334 /* Show busy */
|
|
|
1335 static void
|
|
2286
|
1336 show_one_widget_busy (Widget w, Boolean UNUSED (flag))
|
|
428
|
1337 {
|
|
|
1338 Pixel foreground = 0;
|
|
|
1339 Pixel background = 1;
|
|
|
1340 Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
|
|
1341 Arg al [2];
|
|
|
1342
|
|
|
1343 if (!widget_to_invert)
|
|
|
1344 widget_to_invert = w;
|
|
|
1345
|
|
|
1346 XtSetArg (al [0], XtNforeground, &foreground);
|
|
|
1347 XtSetArg (al [1], XtNbackground, &background);
|
|
|
1348 XtGetValues (widget_to_invert, al, 2);
|
|
|
1349
|
|
|
1350 XtSetArg (al [0], XtNforeground, background);
|
|
|
1351 XtSetArg (al [1], XtNbackground, foreground);
|
|
|
1352 XtSetValues (widget_to_invert, al, 2);
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 void
|
|
|
1356 lw_show_busy (Widget w, Boolean busy)
|
|
|
1357 {
|
|
|
1358 widget_instance *instance = get_widget_instance (w, False);
|
|
|
1359 widget_info *info;
|
|
|
1360 widget_instance *next;
|
|
|
1361
|
|
|
1362 if (instance)
|
|
|
1363 {
|
|
|
1364 info = instance->info;
|
|
|
1365 if (info->busy != busy)
|
|
|
1366 {
|
|
|
1367 for (next = info->instances; next; next = next->next)
|
|
|
1368 if (next->widget)
|
|
|
1369 show_one_widget_busy (next->widget, busy);
|
|
|
1370 info->busy = busy;
|
|
|
1371 }
|
|
|
1372 }
|
|
|
1373 }
|
|
|
1374
|
|
|
1375 void lw_add_value_args_to_args (widget_value* wv, ArgList addto, int* offset)
|
|
|
1376 {
|
|
|
1377 int i;
|
|
434
|
1378 if (wv->args && wv->args->nargs)
|
|
428
|
1379 {
|
|
434
|
1380 for (i = 0; i<wv->args->nargs; i++)
|
|
428
|
1381 {
|
|
434
|
1382 addto[i + *offset] = wv->args->args[i];
|
|
428
|
1383 }
|
|
434
|
1384 *offset += wv->args->nargs;
|
|
428
|
1385 }
|
|
|
1386 }
|
|
|
1387
|
|
639
|
1388 XtArgVal lw_get_value_arg (widget_value* wv, String name)
|
|
|
1389 {
|
|
|
1390 int i;
|
|
|
1391 if (wv->args)
|
|
|
1392 {
|
|
|
1393 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1394 {
|
|
|
1395 if (!strcmp (wv->args->args[i].name, name))
|
|
|
1396 {
|
|
|
1397 return wv->args->args[i].value;
|
|
|
1398 }
|
|
|
1399 }
|
|
|
1400 }
|
|
|
1401 return (XtArgVal)0;
|
|
|
1402 }
|
|
|
1403
|
|
434
|
1404 void lw_add_widget_value_arg (widget_value* wv, String name, XtArgVal value)
|
|
|
1405 {
|
|
442
|
1406 int i = 0;
|
|
434
|
1407 if (!wv->args)
|
|
|
1408 {
|
|
|
1409 wv->args = (widget_args *) malloc (sizeof (widget_args));
|
|
438
|
1410 memset (wv->args, '\0', sizeof (widget_args));
|
|
434
|
1411 wv->args->ref_count = 1;
|
|
|
1412 wv->args->nargs = 0;
|
|
|
1413 wv->args->args = (ArgList) malloc (sizeof (Arg) * 10);
|
|
438
|
1414 memset (wv->args->args, '\0', sizeof (Arg) * 10);
|
|
434
|
1415 }
|
|
|
1416
|
|
|
1417 if (wv->args->nargs > 10)
|
|
|
1418 return;
|
|
|
1419
|
|
450
|
1420 /* Register the change. */
|
|
|
1421 wv->args->args_changed = True;
|
|
442
|
1422 /* If the arg is already there then we must replace it. */
|
|
|
1423 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1424 {
|
|
|
1425 if (!strcmp (wv->args->args[i].name, name))
|
|
|
1426 {
|
|
|
1427 XtSetArg (wv->args->args [i], name, value);
|
|
|
1428 break;
|
|
|
1429 }
|
|
|
1430 }
|
|
|
1431 if (i >= wv->args->nargs)
|
|
|
1432 {
|
|
|
1433 XtSetArg (wv->args->args [wv->args->nargs], name, value); wv->args->nargs++;
|
|
|
1434 }
|
|
434
|
1435 }
|
|
|
1436
|
|
|
1437 static void free_widget_value_args (widget_value* wv)
|
|
|
1438 {
|
|
|
1439 if (wv->args)
|
|
|
1440 {
|
|
|
1441 if (--wv->args->ref_count <= 0)
|
|
|
1442 {
|
|
|
1443 #ifdef LWLIB_WIDGETS_MOTIF
|
|
|
1444 int i;
|
|
|
1445 for (i = 0; i < wv->args->nargs; i++)
|
|
|
1446 {
|
|
|
1447 if (!strcmp (wv->args->args[i].name, XmNfontList))
|
|
|
1448 XmFontListFree ((XmFontList)wv->args->args[i].value);
|
|
|
1449 }
|
|
|
1450 #endif
|
|
|
1451 free (wv->args->args);
|
|
|
1452 free (wv->args);
|
|
442
|
1453 wv->args = 0;
|
|
434
|
1454 }
|
|
|
1455 }
|
|
|
1456 }
|
|
|
1457
|
|
|
1458 void lw_copy_widget_value_args (widget_value* val, widget_value* copy)
|
|
|
1459 {
|
|
442
|
1460 if (val == copy || val->args == copy->args)
|
|
|
1461 return;
|
|
|
1462
|
|
|
1463 if (copy->args)
|
|
434
|
1464 {
|
|
442
|
1465 free_widget_value_args (copy);
|
|
434
|
1466 }
|
|
442
|
1467
|
|
|
1468 if (val->args)
|
|
434
|
1469 {
|
|
|
1470 copy->args = val->args;
|
|
|
1471 copy->args->ref_count++;
|
|
|
1472 }
|
|
|
1473 }
|
|
|
1474
|
|
442
|
1475 /* Remove %_ and convert %% to %. We can do this in-place because we
|
|
|
1476 are always shortening, never lengthening, the string. */
|
|
|
1477 void
|
|
|
1478 lw_remove_accelerator_spec (char *val)
|
|
|
1479 {
|
|
|
1480 char *foo = val, *bar = val;
|
|
|
1481
|
|
|
1482 while (*bar)
|
|
|
1483 {
|
|
|
1484 if (*bar == '%' && *(bar+1) == '_')
|
|
|
1485 bar += 2;
|
|
|
1486 else if (*bar == '%' && *(bar+1) == '%')
|
|
|
1487 {
|
|
|
1488 *foo++ = *bar++;
|
|
|
1489 bar++;
|
|
|
1490 }
|
|
|
1491 else
|
|
|
1492 *foo++ = *bar++;
|
|
|
1493 }
|
|
|
1494 *foo = '\0';
|
|
|
1495 }
|
