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0
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1 /* General GUI code -- X-specific. (menubars, scrollbars, toolbars, dialogs)
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2 Copyright (C) 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996 Ben Wing.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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259
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5 Copyright (C) 1998 Free Software Foundation, Inc.
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0
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* Synched up with: Not in FSF. */
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25
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26 #include <config.h>
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27 #include "lisp.h"
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28
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29 #include "console-x.h"
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30 #ifdef LWLIB_USES_MOTIF
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31 #include <Xm/Xm.h> /* for XmVersion */
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32 #endif
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33 #include "gui-x.h"
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34 #include "buffer.h"
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35 #include "device.h"
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36 #include "frame.h"
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231
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37 #include "gui.h"
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420
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38 #include "redisplay.h"
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0
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39 #include "opaque.h"
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40
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41 Lisp_Object Qmenu_no_selection_hook;
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42
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43 /* we need a unique id for each popup menu, dialog box, and scrollbar */
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44 static unsigned int lwlib_id_tick;
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45
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46 LWLIB_ID
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47 new_lwlib_id (void)
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48 {
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49 return ++lwlib_id_tick;
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50 }
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51
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52 widget_value *
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53 xmalloc_widget_value (void)
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54 {
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55 widget_value *tmp = malloc_widget_value ();
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56 if (!tmp) memory_full ();
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57 return tmp;
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58 }
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59
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60
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412
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61 struct mark_widget_value_closure
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62 {
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63 void (*markobj) (Lisp_Object);
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64 };
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65
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0
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66 static int
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67 mark_widget_value_mapper (widget_value *val, void *closure)
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68 {
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69 Lisp_Object markee;
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412
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70
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71 struct mark_widget_value_closure *cl =
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72 (struct mark_widget_value_closure *) closure;
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0
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73 if (val->call_data)
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74 {
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75 VOID_TO_LISP (markee, val->call_data);
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412
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76 (cl->markobj) (markee);
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0
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77 }
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78
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175
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79 if (val->accel)
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80 {
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81 VOID_TO_LISP (markee, val->accel);
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412
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82 (cl->markobj) (markee);
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175
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83 }
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0
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84 return 0;
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85 }
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86
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87 static Lisp_Object
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412
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88 mark_popup_data (Lisp_Object obj, void (*markobj) (Lisp_Object))
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0
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89 {
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90 struct popup_data *data = (struct popup_data *) XPOPUP_DATA (obj);
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91
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92 /* Now mark the callbacks and such that are hidden in the lwlib
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93 call-data */
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94
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95 if (data->id)
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412
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96 {
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97 struct mark_widget_value_closure closure;
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98
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99 closure.markobj = markobj;
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100 lw_map_widget_values (data->id, mark_widget_value_mapper, &closure);
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101 }
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173
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102
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103 return data->last_menubar_buffer;
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0
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104 }
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105
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272
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106 DEFINE_LRECORD_IMPLEMENTATION ("popup-data", popup_data,
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107 mark_popup_data, internal_object_printer,
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420
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108 0, 0, 0, 0, struct popup_data);
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272
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109
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0
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110 /* This is like FRAME_MENUBAR_DATA (f), but contains an alist of
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111 (id . popup-data) for GCPRO'ing the callbacks of the popup menus
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112 and dialog boxes. */
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113 static Lisp_Object Vpopup_callbacks;
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114
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115 void
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116 gcpro_popup_callbacks (LWLIB_ID id)
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117 {
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118 struct popup_data *pdata;
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119 Lisp_Object lid = make_int (id);
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272
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120 Lisp_Object lpdata;
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0
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121
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122 assert (NILP (assq_no_quit (lid, Vpopup_callbacks)));
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398
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123 pdata = alloc_lcrecord_type (struct popup_data, &lrecord_popup_data);
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0
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124 pdata->id = id;
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125 pdata->last_menubar_buffer = Qnil;
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126 pdata->menubar_contents_up_to_date = 0;
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127 XSETPOPUP_DATA (lpdata, pdata);
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128 Vpopup_callbacks = Fcons (Fcons (lid, lpdata), Vpopup_callbacks);
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129 }
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130
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131 void
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132 ungcpro_popup_callbacks (LWLIB_ID id)
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133 {
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134 Lisp_Object lid = make_int (id);
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135 Lisp_Object this = assq_no_quit (lid, Vpopup_callbacks);
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136 assert (!NILP (this));
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137 Vpopup_callbacks = delq_no_quit (this, Vpopup_callbacks);
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138 }
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139
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140 int
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141 popup_handled_p (LWLIB_ID id)
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142 {
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173
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143 return NILP (assq_no_quit (make_int (id), Vpopup_callbacks));
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0
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144 }
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145
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146 /* menu_item_descriptor_to_widget_value() et al. mallocs a
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147 widget_value, but then may signal lisp errors. If an error does
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148 not occur, the opaque ptr we have here has had its pointer set to 0
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149 to tell us not to do anything. Otherwise we free the widget value.
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150 (This has nothing to do with GC, it's just about not dropping
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151 pointers to malloc'd data when errors happen.) */
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152
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153 Lisp_Object
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154 widget_value_unwind (Lisp_Object closure)
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155 {
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156 widget_value *wv = (widget_value *) get_opaque_ptr (closure);
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157 free_opaque_ptr (closure);
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158 if (wv)
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412
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159 free_widget_value (wv);
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0
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160 return Qnil;
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161 }
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162
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163 #if 0
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164 static void
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165 print_widget_value (widget_value *wv, int depth)
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166 {
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167 /* !!#### This function has not been Mule-ized */
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168 char d [200];
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169 int i;
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170 for (i = 0; i < depth; i++) d[i] = ' ';
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171 d[depth]=0;
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172 /* #### - print type field */
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173 printf ("%sname: %s\n", d, (wv->name ? wv->name : "(null)"));
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174 if (wv->value) printf ("%svalue: %s\n", d, wv->value);
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175 if (wv->key) printf ("%skey: %s\n", d, wv->key);
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176 printf ("%senabled: %d\n", d, wv->enabled);
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177 if (wv->contents)
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178 {
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179 printf ("\n%scontents: \n", d);
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180 print_widget_value (wv->contents, depth + 5);
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181 }
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182 if (wv->next)
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183 {
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184 printf ("\n");
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185 print_widget_value (wv->next, depth);
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186 }
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187 }
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188 #endif
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189
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190 /* This recursively calls free_widget_value() on the tree of widgets.
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191 It must free all data that was malloc'ed for these widget_values.
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192
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193 It used to be that emacs only allocated new storage for the `key' slot.
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194 All other slots are pointers into the data of Lisp_Strings, and must be
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195 left alone. */
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196 void
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197 free_popup_widget_value_tree (widget_value *wv)
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198 {
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199 if (! wv) return;
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200 if (wv->key) xfree (wv->key);
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201 if (wv->value) xfree (wv->value);
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202
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203 wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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204
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205 if (wv->contents && (wv->contents != (widget_value*)1))
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206 {
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207 free_popup_widget_value_tree (wv->contents);
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208 wv->contents = (widget_value *) 0xDEADBEEF;
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209 }
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210 if (wv->next)
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211 {
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212 free_popup_widget_value_tree (wv->next);
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213 wv->next = (widget_value *) 0xDEADBEEF;
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214 }
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215 free_widget_value (wv);
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216 }
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217
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218 /* The following is actually called from somewhere within XtDispatchEvent(),
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219 called from XtAppProcessEvent() in event-Xt.c */
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220
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221 void
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222 popup_selection_callback (Widget widget, LWLIB_ID ignored_id,
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223 XtPointer client_data)
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224 {
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412
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225 Lisp_Object fn, arg;
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226 Lisp_Object data;
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227 Lisp_Object frame;
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0
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228 struct device *d = get_device_from_display (XtDisplay (widget));
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229 struct frame *f = x_any_widget_or_parent_to_frame (d, widget);
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230
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175
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231 /* set in lwlib to the time stamp associated with the most recent menu
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232 operation */
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233 extern Time x_focus_timestamp_really_sucks_fix_me_better;
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234
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0
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235 if (!f)
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236 return;
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237 if (((EMACS_INT) client_data) == 0)
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238 return;
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239 VOID_TO_LISP (data, client_data);
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240 XSETFRAME (frame, f);
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241
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242 #if 0
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243 /* #### What the hell? I can't understand why this call is here,
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244 and doing it is really courting disaster in the new event
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245 model, since popup_selection_callback is called from
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246 within next_event_internal() and Faccept_process_output()
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247 itself calls next_event_internal(). --Ben */
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248
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249 /* Flush the X and process input */
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250 Faccept_process_output (Qnil, Qnil, Qnil);
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251 #endif
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252
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253 if (((EMACS_INT) client_data) == -1)
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254 {
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412
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255 fn = Qrun_hooks;
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256 arg = Qmenu_no_selection_hook;
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0
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257 }
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258 else
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420
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259 {
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260 MARK_SUBWINDOWS_CHANGED;
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261 get_gui_callback (data, &fn, &arg);
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262 }
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0
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263
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264 /* This is the timestamp used for asserting focus so we need to get an
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265 up-to-date value event if no events has been dispatched to emacs
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266 */
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179
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267 #if defined(HAVE_MENUBARS)
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175
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268 DEVICE_X_MOUSE_TIMESTAMP (d) = x_focus_timestamp_really_sucks_fix_me_better;
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177
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269 #else
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270 DEVICE_X_MOUSE_TIMESTAMP (d) = DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d);
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271 #endif
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412
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272 signal_special_Xt_user_event (frame, fn, arg);
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0
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273 }
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274
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275 #if 1
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276 /* Eval the activep slot of the menu item */
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380
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277 # define wv_set_evalable_slot(slot,form) do { \
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278 Lisp_Object wses_form = (form); \
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279 (slot) = (NILP (wses_form) ? 0 : \
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280 EQ (wses_form, Qt) ? 1 : \
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281 !NILP (Feval (wses_form))); \
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282 } while (0)
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0
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283 #else
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284 /* Treat the activep slot of the menu item as a boolean */
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285 # define wv_set_evalable_slot(slot,form) \
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380
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286 ((void) (slot = (!NILP (form))))
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0
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287 #endif
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288
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289 char *
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412
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290 menu_separator_style (CONST char *s)
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0
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291 {
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412
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292 CONST char *p;
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0
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293 char first;
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294
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295 if (!s || s[0] == '\0')
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296 return NULL;
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297 first = s[0];
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298 if (first != '-' && first != '=')
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299 return NULL;
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380
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300 for (p = s; *p == first; p++)
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301 DO_NOTHING;
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0
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302
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303 /* #### - cannot currently specify a separator tag "--!tag" and a
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304 separator style "--:style" at the same time. */
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305 /* #### - Also, the motif menubar code doesn't deal with the
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306 double etched style yet, so it's not good to get into the habit of
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307 using "===" in menubars to get double-etched lines */
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308 if (*p == '!' || *p == '\0')
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309 return ((first == '-')
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272
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310 ? NULL /* single etched is the default */
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0
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311 : xstrdup ("shadowDoubleEtchedIn"));
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312 else if (*p == ':')
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313 return xstrdup (p+1);
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173
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314
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0
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315 return NULL;
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316 }
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317
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175
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318
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0
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319 /* This does the dirty work. gc_currently_forbidden is 1 when this is called.
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320 */
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321 int
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420
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322 button_item_to_widget_value (Lisp_Object gui_item, widget_value *wv,
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412
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323 int allow_text_field_p, int no_keys_p)
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0
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324 {
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325 /* !!#### This function has not been Mule-ized */
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326 /* This function cannot GC because gc_currently_forbidden is set when
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327 it's called */
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420
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328 struct Lisp_Gui_Item* pgui = XGUI_ITEM (gui_item);
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412
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329
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420
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330 if (!NILP (pgui->filter))
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331 signal_simple_error(":filter keyword not permitted on leaf nodes", gui_item);
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0
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332
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333 #ifdef HAVE_MENUBARS
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420
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334 if (!gui_item_included_p (gui_item, Vmenubar_configuration))
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0
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335 {
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336 /* the include specification says to ignore this item. */
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337 return 0;
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338 }
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16
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339 #endif /* HAVE_MENUBARS */
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0
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340
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420
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341 CHECK_STRING (pgui->name);
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342 wv->name = (char *) XSTRING_DATA (pgui->name);
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343 wv->accel = LISP_TO_VOID (gui_item_accelerator (gui_item));
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404
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344
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420
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345 if (!NILP (pgui->suffix))
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0
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346 {
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412
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347 CONST char *const_bogosity;
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259
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348 Lisp_Object suffix2;
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272
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349
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259
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350 /* Shortcut to avoid evaluating suffix each time */
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420
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351 if (STRINGP (pgui->suffix))
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352 suffix2 = pgui->suffix;
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259
|
353 else
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354 {
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420
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355 suffix2 = Feval (pgui->suffix);
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259
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356 CHECK_STRING (suffix2);
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357 }
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358
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412
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359 GET_C_STRING_FILENAME_DATA_ALLOCA (suffix2, const_bogosity);
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0
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360 wv->value = (char *) const_bogosity;
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361 wv->value = xstrdup (wv->value);
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362 }
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363
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420
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364 wv_set_evalable_slot (wv->enabled, pgui->active);
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365 wv_set_evalable_slot (wv->selected, pgui->selected);
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0
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366
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420
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367 if (!NILP (pgui->callback))
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368 wv->call_data = LISP_TO_VOID (pgui->callback);
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0
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369
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370 if (no_keys_p
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371 #ifdef HAVE_MENUBARS
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412
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372 || !menubar_show_keybindings
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0
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373 #endif
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374 )
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375 wv->key = 0;
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420
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376 else if (!NILP (pgui->keys)) /* Use this string to generate key bindings */
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0
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377 {
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420
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378 CHECK_STRING (pgui->keys);
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379 pgui->keys = Fsubstitute_command_keys (pgui->keys);
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380 if (XSTRING_LENGTH (pgui->keys) > 0)
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381 wv->key = xstrdup ((char *) XSTRING_DATA (pgui->keys));
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0
|
382 else
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383 wv->key = 0;
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|
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384 }
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420
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385 else if (SYMBOLP (pgui->callback)) /* Show the binding of this command. */
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|
0
|
386 {
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|
412
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387 char buf [1024];
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|
0
|
388 /* #### Warning, dependency here on current_buffer and point */
|
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420
|
389 where_is_to_char (pgui->callback, buf);
|
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0
|
390 if (buf [0])
|
|
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391 wv->key = xstrdup (buf);
|
|
|
392 else
|
|
|
393 wv->key = 0;
|
|
|
394 }
|
|
|
395
|
|
420
|
396 CHECK_SYMBOL (pgui->style);
|
|
|
397 if (NILP (pgui->style))
|
|
0
|
398 {
|
|
|
399 /* If the callback is nil, treat this item like unselectable text.
|
|
|
400 This way, dashes will show up as a separator. */
|
|
|
401 if (!wv->enabled)
|
|
|
402 wv->type = BUTTON_TYPE;
|
|
|
403 if (separator_string_p (wv->name))
|
|
|
404 {
|
|
|
405 wv->type = SEPARATOR_TYPE;
|
|
|
406 wv->value = menu_separator_style (wv->name);
|
|
|
407 }
|
|
|
408 else
|
|
|
409 {
|
|
|
410 #if 0
|
|
|
411 /* #### - this is generally desirable for menubars, but it breaks
|
|
|
412 a package that uses dialog boxes and next_command_event magic
|
|
|
413 to use the callback slot in dialog buttons for data instead of
|
|
|
414 a real callback.
|
|
|
415
|
|
|
416 Code is data, right? The beauty of LISP abuse. --Stig */
|
|
|
417 if (NILP (callback))
|
|
|
418 wv->type = TEXT_TYPE;
|
|
|
419 else
|
|
|
420 #endif
|
|
|
421 wv->type = BUTTON_TYPE;
|
|
|
422 }
|
|
|
423 }
|
|
420
|
424 else if (EQ (pgui->style, Qbutton))
|
|
0
|
425 wv->type = BUTTON_TYPE;
|
|
420
|
426 else if (EQ (pgui->style, Qtoggle))
|
|
0
|
427 wv->type = TOGGLE_TYPE;
|
|
420
|
428 else if (EQ (pgui->style, Qradio))
|
|
0
|
429 wv->type = RADIO_TYPE;
|
|
420
|
430 else if (EQ (pgui->style, Qtext))
|
|
0
|
431 {
|
|
|
432 wv->type = TEXT_TYPE;
|
|
|
433 #if 0
|
|
|
434 wv->value = wv->name;
|
|
|
435 wv->name = "value";
|
|
173
|
436 #endif
|
|
0
|
437 }
|
|
|
438 else
|
|
420
|
439 signal_simple_error_2 ("Unknown style", pgui->style, gui_item);
|
|
0
|
440
|
|
|
441 if (!allow_text_field_p && (wv->type == TEXT_TYPE))
|
|
420
|
442 signal_simple_error ("Text field not allowed in this context", gui_item);
|
|
0
|
443
|
|
420
|
444 if (!NILP (pgui->selected) && EQ (pgui->style, Qtext))
|
|
0
|
445 signal_simple_error (
|
|
420
|
446 ":selected only makes sense with :style toggle, radio or button",
|
|
|
447 gui_item);
|
|
0
|
448 return 1;
|
|
|
449 }
|
|
|
450
|
|
|
451
|
|
|
452 /* This is a kludge to make sure emacs can only link against a version of
|
|
|
453 lwlib that was compiled in the right way. Emacs references symbols which
|
|
|
454 correspond to the way it thinks lwlib was compiled, and if lwlib wasn't
|
|
|
455 compiled in that way, then somewhat meaningful link errors will result.
|
|
|
456 The alternatives to this range from obscure link errors, to obscure
|
|
|
457 runtime errors that look a lot like bugs.
|
|
|
458 */
|
|
|
459
|
|
|
460 static void
|
|
|
461 sanity_check_lwlib (void)
|
|
|
462 {
|
|
|
463 #define MACROLET(v) { extern int v; v = 1; }
|
|
|
464
|
|
|
465 #if (XlibSpecificationRelease == 4)
|
|
|
466 MACROLET (lwlib_uses_x11r4);
|
|
|
467 #elif (XlibSpecificationRelease == 5)
|
|
|
468 MACROLET (lwlib_uses_x11r5);
|
|
|
469 #elif (XlibSpecificationRelease == 6)
|
|
|
470 MACROLET (lwlib_uses_x11r6);
|
|
|
471 #else
|
|
|
472 MACROLET (lwlib_uses_unknown_x11);
|
|
|
473 #endif
|
|
|
474 #ifdef LWLIB_USES_MOTIF
|
|
|
475 MACROLET (lwlib_uses_motif);
|
|
|
476 #else
|
|
|
477 MACROLET (lwlib_does_not_use_motif);
|
|
|
478 #endif
|
|
|
479 #if (XmVersion >= 1002)
|
|
|
480 MACROLET (lwlib_uses_motif_1_2);
|
|
|
481 #else
|
|
|
482 MACROLET (lwlib_does_not_use_motif_1_2);
|
|
|
483 #endif
|
|
|
484 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
485 MACROLET (lwlib_menubars_lucid);
|
|
|
486 #elif defined (HAVE_MENUBARS)
|
|
|
487 MACROLET (lwlib_menubars_motif);
|
|
|
488 #endif
|
|
|
489 #ifdef LWLIB_SCROLLBARS_LUCID
|
|
|
490 MACROLET (lwlib_scrollbars_lucid);
|
|
|
491 #elif defined (LWLIB_SCROLLBARS_MOTIF)
|
|
|
492 MACROLET (lwlib_scrollbars_motif);
|
|
|
493 #elif defined (HAVE_SCROLLBARS)
|
|
|
494 MACROLET (lwlib_scrollbars_athena);
|
|
|
495 #endif
|
|
|
496 #ifdef LWLIB_DIALOGS_MOTIF
|
|
|
497 MACROLET (lwlib_dialogs_motif);
|
|
|
498 #elif defined (HAVE_DIALOGS)
|
|
|
499 MACROLET (lwlib_dialogs_athena);
|
|
|
500 #endif
|
|
|
501
|
|
|
502 #undef MACROLET
|
|
|
503 }
|
|
|
504
|
|
|
505 void
|
|
|
506 syms_of_gui_x (void)
|
|
|
507 {
|
|
398
|
508 defsymbol (&Qmenu_no_selection_hook, "menu-no-selection-hook");
|
|
0
|
509 }
|
|
|
510
|
|
|
511 void
|
|
|
512 vars_of_gui_x (void)
|
|
|
513 {
|
|
412
|
514 lwlib_id_tick = (1<<16); /* start big, to not conflict with Energize */
|
|
|
515
|
|
|
516 popup_up_p = 0;
|
|
0
|
517
|
|
|
518 Vpopup_callbacks = Qnil;
|
|
|
519 staticpro (&Vpopup_callbacks);
|
|
|
520
|
|
|
521 #if 0
|
|
|
522 /* This DEFVAR_LISP is just for the benefit of make-docfile. */
|
|
|
523 /* #### misnamed */
|
|
|
524 DEFVAR_LISP ("menu-no-selection-hook", &Vmenu_no_selection_hook /*
|
|
|
525 Function or functions to call when a menu or dialog box is dismissed
|
|
|
526 without a selection having been made.
|
|
|
527 */ );
|
|
|
528 #endif
|
|
|
529 Fset (Qmenu_no_selection_hook, Qnil);
|
|
412
|
530
|
|
|
531 /* this makes only safe calls as in emacs.c */
|
|
|
532 sanity_check_lwlib ();
|
|
0
|
533 }
|
