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0
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1 /* Generic GUI code. (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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251
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27 #include "lisp.h"
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231
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28 #include "gui.h"
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384
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29 #include "elhash.h"
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380
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30 #include "bytecode.h"
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0
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31
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32 Lisp_Object Q_active, Q_suffix, Q_keys, Q_style, Q_selected;
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377
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33 Lisp_Object Q_filter, Q_config, Q_included, Q_key_sequence;
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412
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34 Lisp_Object Q_accelerator, Q_label, Q_callback;
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0
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35 Lisp_Object Qtoggle, Qradio;
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36
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231
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37 #ifdef HAVE_POPUPS
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38
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39 /* count of menus/dboxes currently up */
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40 int popup_up_p;
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41
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42 DEFUN ("popup-up-p", Fpopup_up_p, 0, 0, 0, /*
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43 Return t if a popup menu or dialog box is up, nil otherwise.
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44 See `popup-menu' and `popup-dialog-box'.
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45 */
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46 ())
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47 {
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48 return popup_up_p ? Qt : Qnil;
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49 }
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384
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50 #endif /* HAVE_POPUPS */
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231
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51
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52 int
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412
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53 separator_string_p (CONST char *s)
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231
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54 {
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412
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55 CONST char *p;
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231
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56 char first;
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57
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58 if (!s || s[0] == '\0')
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59 return 0;
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60 first = s[0];
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61 if (first != '-' && first != '=')
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62 return 0;
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272
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63 for (p = s; *p == first; p++)
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64 ;
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231
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65
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272
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66 return (*p == '!' || *p == ':' || *p == '\0');
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231
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67 }
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68
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286
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69 /* Massage DATA to find the correct function and argument. Used by
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70 popup_selection_callback() and the msw code. */
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71 void
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288
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72 get_gui_callback (Lisp_Object data, Lisp_Object *fn, Lisp_Object *arg)
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286
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73 {
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412
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74 if (SYMBOLP (data)
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75 || (COMPILED_FUNCTIONP (data)
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76 && XCOMPILED_FUNCTION (data)->flags.interactivep)
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77 || (EQ (XCAR (data), Qlambda)
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78 && !NILP (Fassq (Qinteractive, Fcdr (Fcdr (data))))))
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286
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79 {
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80 *fn = Qcall_interactively;
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81 *arg = data;
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82 }
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83 else if (CONSP (data))
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84 {
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85 *fn = Qeval;
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86 *arg = data;
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87 }
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88 else
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89 {
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90 *fn = Qeval;
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91 *arg = list3 (Qsignal,
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92 list2 (Qquote, Qerror),
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93 list2 (Qquote, list2 (build_translated_string
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94 ("illegal callback"),
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95 data)));
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96 }
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97 }
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98
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272
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99 /*
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251
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100 * Add a value VAL associated with keyword KEY into PGUI_ITEM
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101 * structure. If KEY is not a keyword, or is an unknown keyword, then
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102 * error is signaled.
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103 */
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272
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104 void
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418
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105 gui_item_add_keyval_pair (Lisp_Object gui_item,
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412
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106 Lisp_Object key, Lisp_Object val,
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388
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107 Error_behavior errb)
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251
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108 {
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418
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109 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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110
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251
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111 if (!KEYWORDP (key))
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272
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112 signal_simple_error_2 ("Non-keyword in gui item", key, pgui_item->name);
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251
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113
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272
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114 if (EQ (key, Q_suffix)) pgui_item->suffix = val;
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115 else if (EQ (key, Q_active)) pgui_item->active = val;
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116 else if (EQ (key, Q_included)) pgui_item->included = val;
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117 else if (EQ (key, Q_config)) pgui_item->config = val;
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118 else if (EQ (key, Q_filter)) pgui_item->filter = val;
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119 else if (EQ (key, Q_style)) pgui_item->style = val;
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120 else if (EQ (key, Q_selected)) pgui_item->selected = val;
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121 else if (EQ (key, Q_keys)) pgui_item->keys = val;
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412
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122 else if (EQ (key, Q_callback)) pgui_item->callback = val;
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123 else if (EQ (key, Q_key_sequence)) ; /* ignored for FSF compatability */
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377
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124 else if (EQ (key, Q_label)) ; /* ignored for 21.0 implement in 21.2 */
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388
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125 else if (ERRB_EQ (errb, ERROR_ME))
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412
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126 signal_simple_error_2 ("Unknown keyword in gui item", key, pgui_item->name);
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398
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127 }
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128
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418
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129 void
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130 gui_item_init (Lisp_Object gui_item)
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131 {
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132 struct Lisp_Gui_Item *lp = XGUI_ITEM (gui_item);
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133
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134 lp->name = Qnil;
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135 lp->callback = Qnil;
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136 lp->suffix = Qnil;
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137 lp->active = Qt;
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138 lp->included = Qt;
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139 lp->config = Qnil;
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140 lp->filter = Qnil;
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141 lp->style = Qnil;
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142 lp->selected = Qnil;
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143 lp->keys = Qnil;
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144 }
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145
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146 Lisp_Object
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147 allocate_gui_item ()
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148 {
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149 struct Lisp_Gui_Item *lp =
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150 alloc_lcrecord_type (struct Lisp_Gui_Item, &lrecord_gui_item);
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151 Lisp_Object val;
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152
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153 zero_lcrecord (lp);
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154 XSETGUI_ITEM (val, lp);
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155
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156 gui_item_init (val);
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157
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158 return val;
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159 }
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160
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251
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161 /*
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162 * ITEM is a lisp vector, describing a menu item or a button. The
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163 * function extracts the description of the item into the PGUI_ITEM
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164 * structure.
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165 */
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418
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166 static Lisp_Object
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167 make_gui_item_from_keywords_internal (Lisp_Object item,
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168 Error_behavior errb)
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251
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169 {
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384
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170 int length, plist_p, start;
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251
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171 Lisp_Object *contents;
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418
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172 Lisp_Object gui_item = allocate_gui_item ();
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173 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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251
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174
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175 CHECK_VECTOR (item);
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176 length = XVECTOR_LENGTH (item);
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177 contents = XVECTOR_DATA (item);
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178
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384
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179 if (length < 1)
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180 signal_simple_error ("GUI item descriptors must be at least 1 elts long", item);
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251
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181
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384
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182 /* length 1: [ "name" ]
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183 length 2: [ "name" callback ]
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259
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184 length 3: [ "name" callback active-p ]
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384
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185 or [ "name" keyword value ]
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251
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186 length 4: [ "name" callback active-p suffix ]
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187 or [ "name" callback keyword value ]
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188 length 5+: [ "name" callback [ keyword value ]+ ]
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384
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189 or [ "name" [ keyword value ]+ ]
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251
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190 */
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384
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191 plist_p = (length > 2 && (KEYWORDP (contents [1])
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192 || KEYWORDP (contents [2])));
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251
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193
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194 pgui_item->name = contents [0];
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384
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195 if (length > 1 && !KEYWORDP (contents [1]))
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196 {
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197 pgui_item->callback = contents [1];
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198 start = 2;
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199 }
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412
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200 else
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384
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201 start =1;
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251
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202
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259
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203 if (!plist_p && length > 2)
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251
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204 /* the old way */
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205 {
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206 pgui_item->active = contents [2];
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207 if (length == 4)
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208 pgui_item->suffix = contents [3];
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209 }
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210 else
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211 /* the new way */
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212 {
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213 int i;
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384
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214 if ((length - start) & 1)
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251
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215 signal_simple_error (
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216 "GUI item descriptor has an odd number of keywords and values",
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217 item);
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218
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384
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219 for (i = start; i < length;)
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251
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220 {
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221 Lisp_Object key = contents [i++];
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222 Lisp_Object val = contents [i++];
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418
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223 gui_item_add_keyval_pair (gui_item, key, val, errb);
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251
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224 }
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272
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225 }
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418
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226 return gui_item;
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227 }
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228
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229 Lisp_Object
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230 gui_parse_item_keywords (Lisp_Object item)
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231 {
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232 return make_gui_item_from_keywords_internal (item, ERROR_ME);
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233 }
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234
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235 Lisp_Object
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236 gui_parse_item_keywords_no_errors (Lisp_Object item)
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237 {
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238 return make_gui_item_from_keywords_internal (item, ERROR_ME_NOT);
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251
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239 }
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240
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418
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241 /* convert a gui item into plist properties */
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388
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242 void
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418
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243 gui_add_item_keywords_to_plist (Lisp_Object plist, Lisp_Object gui_item)
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388
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244 {
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418
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245 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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246
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247 if (!NILP (pgui_item->callback))
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248 Fplist_put (plist, Q_callback, pgui_item->callback);
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249 if (!NILP (pgui_item->suffix))
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250 Fplist_put (plist, Q_suffix, pgui_item->suffix);
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251 if (!NILP (pgui_item->active))
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252 Fplist_put (plist, Q_active, pgui_item->active);
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253 if (!NILP (pgui_item->included))
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254 Fplist_put (plist, Q_included, pgui_item->included);
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255 if (!NILP (pgui_item->config))
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256 Fplist_put (plist, Q_config, pgui_item->config);
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257 if (!NILP (pgui_item->filter))
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258 Fplist_put (plist, Q_filter, pgui_item->filter);
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259 if (!NILP (pgui_item->style))
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260 Fplist_put (plist, Q_style, pgui_item->style);
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261 if (!NILP (pgui_item->selected))
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262 Fplist_put (plist, Q_selected, pgui_item->selected);
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263 if (!NILP (pgui_item->keys))
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264 Fplist_put (plist, Q_keys, pgui_item->keys);
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388
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265 }
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266
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251
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267 /*
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268 * Decide whether a GUI item is active by evaluating its :active form
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269 * if any
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270 */
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271 int
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418
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272 gui_item_active_p (Lisp_Object gui_item)
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251
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273 {
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274 /* This function can call lisp */
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272
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275
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251
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276 /* Shortcut to avoid evaluating Qt each time */
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418
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277 return (EQ (XGUI_ITEM (gui_item)->active, Qt)
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278 || !NILP (Feval (XGUI_ITEM (gui_item)->active)));
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251
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279 }
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280
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281 /*
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384
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282 * Decide whether a GUI item is selected by evaluating its :selected form
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283 * if any
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284 */
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285 int
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418
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286 gui_item_selected_p (Lisp_Object gui_item)
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384
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287 {
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288 /* This function can call lisp */
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289
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290 /* Shortcut to avoid evaluating Qt each time */
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418
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291 return (EQ (XGUI_ITEM (gui_item)->selected, Qt)
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292 || !NILP (Feval (XGUI_ITEM (gui_item)->selected)));
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384
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293 }
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294
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295 /*
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251
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296 * Decide whether a GUI item is included by evaluating its :included
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297 * form if given, and testing its :config form against supplied CONFLIST
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298 * configuration variable
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299 */
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300 int
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418
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301 gui_item_included_p (Lisp_Object gui_item, Lisp_Object conflist)
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251
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302 {
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303 /* This function can call lisp */
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418
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304 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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251
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305
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306 /* Evaluate :included first. Shortcut to avoid evaluating Qt each time */
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307 if (!EQ (pgui_item->included, Qt)
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308 && NILP (Feval (pgui_item->included)))
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309 return 0;
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310
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311 /* Do :config if conflist is given */
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312 if (!NILP (conflist) && !NILP (pgui_item->config)
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313 && NILP (Fmemq (pgui_item->config, conflist)))
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314 return 0;
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315
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316 return 1;
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317 }
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318
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319 static DOESNT_RETURN
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320 signal_too_long_error (Lisp_Object name)
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321 {
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272
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322 signal_simple_error ("GUI item produces too long displayable string", name);
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251
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323 }
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324
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384
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325 #ifdef HAVE_WINDOW_SYSTEM
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251
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326 /*
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272
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327 * Format "left flush" display portion of an item into BUF, guarded by
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328 * maximum buffer size BUF_LEN. BUF_LEN does not count for terminating
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251
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329 * null character, so actual maximum size of buffer consumed is
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330 * BUF_LEN + 1 bytes. If buffer is not big enough, then error is
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331 * signaled.
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332 * Return value is the offset to the terminating null character into the
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333 * buffer.
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334 */
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335 unsigned int
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418
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336 gui_item_display_flush_left (Lisp_Object gui_item,
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412
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337 char* buf, Bytecount buf_len)
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251
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338 {
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272
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339 char *p = buf;
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340 Bytecount len;
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418
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341 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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251
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342
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343 /* Copy item name first */
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344 CHECK_STRING (pgui_item->name);
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272
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345 len = XSTRING_LENGTH (pgui_item->name);
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346 if (len > buf_len)
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251
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347 signal_too_long_error (pgui_item->name);
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272
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348 memcpy (p, XSTRING_DATA (pgui_item->name), len);
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349 p += len;
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251
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350
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259
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351 /* Add space and suffix, if there is a suffix.
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272
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352 * If suffix is not string evaluate it */
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251
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353 if (!NILP (pgui_item->suffix))
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354 {
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272
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355 Lisp_Object suffix = pgui_item->suffix;
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259
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356 /* Shortcut to avoid evaluating suffix each time */
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272
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357 if (!STRINGP (suffix))
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259
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358 {
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272
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359 suffix = Feval (suffix);
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360 CHECK_STRING (suffix);
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259
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361 }
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272
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362
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363 len = XSTRING_LENGTH (suffix);
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364 if (p + len + 1 > buf + buf_len)
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251
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365 signal_too_long_error (pgui_item->name);
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272
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366 *(p++) = ' ';
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367 memcpy (p, XSTRING_DATA (suffix), len);
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368 p += len;
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251
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369 }
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272
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370 *p = '\0';
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371 return p - buf;
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251
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372 }
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373
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374 /*
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272
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375 * Format "right flush" display portion of an item into BUF, guarded by
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376 * maximum buffer size BUF_LEN. BUF_LEN does not count for terminating
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251
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377 * null character, so actual maximum size of buffer consumed is
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378 * BUF_LEN + 1 bytes. If buffer is not big enough, then error is
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379 * signaled.
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380 * Return value is the offset to the terminating null character into the
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381 * buffer.
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382 */
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383 unsigned int
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418
|
384 gui_item_display_flush_right (Lisp_Object gui_item,
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412
|
385 char* buf, Bytecount buf_len)
|
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251
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386 {
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|
418
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387 struct Lisp_Gui_Item* pgui_item = XGUI_ITEM (gui_item);
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251
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388 *buf = 0;
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|
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389
|
|
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390 /* Have keys? */
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|
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391 if (!menubar_show_keybindings)
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392 return 0;
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393
|
|
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394 /* Try :keys first */
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|
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395 if (!NILP (pgui_item->keys))
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|
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396 {
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|
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397 CHECK_STRING (pgui_item->keys);
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412
|
398 if (XSTRING_LENGTH (pgui_item->keys) > buf_len)
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251
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399 signal_too_long_error (pgui_item->name);
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412
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400 strcpy (buf, (CONST char *) XSTRING_DATA (pgui_item->keys));
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251
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401 return XSTRING_LENGTH (pgui_item->keys);
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|
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402 }
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|
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403
|
|
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404 /* See if we can derive keys out of callback symbol */
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405 if (SYMBOLP (pgui_item->callback))
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|
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406 {
|
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412
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407 char buf2 [1024];
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|
272
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408 Bytecount len;
|
|
251
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409
|
|
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410 where_is_to_char (pgui_item->callback, buf2);
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411 len = strlen (buf2);
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|
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412 if (len > buf_len)
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413 signal_too_long_error (pgui_item->name);
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414 strcpy (buf, buf2);
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415 return len;
|
|
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416 }
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|
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417
|
|
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418 /* No keys - no right flush display */
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|
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419 return 0;
|
|
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420 }
|
|
384
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421 #endif /* HAVE_WINDOW_SYSTEM */
|
|
251
|
422
|
|
418
|
423 static Lisp_Object
|
|
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424 mark_gui_item (Lisp_Object obj, void (*markobj) (Lisp_Object))
|
|
384
|
425 {
|
|
418
|
426 struct Lisp_Gui_Item *p = XGUI_ITEM (obj);
|
|
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427
|
|
412
|
428 markobj (p->name);
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|
|
429 markobj (p->callback);
|
|
|
430 markobj (p->suffix);
|
|
|
431 markobj (p->active);
|
|
|
432 markobj (p->included);
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|
|
433 markobj (p->config);
|
|
|
434 markobj (p->filter);
|
|
|
435 markobj (p->style);
|
|
|
436 markobj (p->selected);
|
|
|
437 markobj (p->keys);
|
|
384
|
438
|
|
|
439 return Qnil;
|
|
|
440 }
|
|
|
441
|
|
418
|
442 static unsigned long
|
|
|
443 gui_item_hash (Lisp_Object obj, int depth)
|
|
|
444 {
|
|
|
445 struct Lisp_Gui_Item *p = XGUI_ITEM (obj);
|
|
|
446
|
|
|
447 return HASH2 (HASH5 (internal_hash (p->name, depth + 1),
|
|
|
448 internal_hash (p->callback, depth + 1),
|
|
|
449 internal_hash (p->suffix, depth + 1),
|
|
|
450 internal_hash (p->active, depth + 1),
|
|
|
451 internal_hash (p->included, depth + 1)),
|
|
|
452 HASH5 (internal_hash (p->config, depth + 1),
|
|
|
453 internal_hash (p->filter, depth + 1),
|
|
|
454 internal_hash (p->style, depth + 1),
|
|
|
455 internal_hash (p->selected, depth + 1),
|
|
|
456 internal_hash (p->keys, depth + 1)));
|
|
|
457 }
|
|
|
458
|
|
412
|
459 int
|
|
418
|
460 gui_item_id_hash (Lisp_Object hashtable, Lisp_Object gitem, int slot)
|
|
404
|
461 {
|
|
418
|
462 int hashid = gui_item_hash (gitem, 0);
|
|
384
|
463 int id = GUI_ITEM_ID_BITS (hashid, slot);
|
|
|
464 while (!NILP (Fgethash (make_int (id),
|
|
|
465 hashtable, Qnil)))
|
|
|
466 {
|
|
|
467 id = GUI_ITEM_ID_BITS (id + 1, slot);
|
|
|
468 }
|
|
|
469 return id;
|
|
|
470 }
|
|
231
|
471
|
|
418
|
472 static int
|
|
|
473 gui_item_equal (Lisp_Object obj1, Lisp_Object obj2, int depth)
|
|
|
474 {
|
|
|
475 struct Lisp_Gui_Item *p1 = XGUI_ITEM (obj1);
|
|
|
476 struct Lisp_Gui_Item *p2 = XGUI_ITEM (obj2);
|
|
|
477
|
|
|
478 if (!(internal_equal (p1->name, p2->name, depth + 1)
|
|
|
479 &&
|
|
|
480 internal_equal (p1->callback, p2->callback, depth + 1)
|
|
|
481 &&
|
|
|
482 EQ (p1->suffix, p2->suffix)
|
|
|
483 &&
|
|
|
484 EQ (p1->active, p2->active)
|
|
|
485 &&
|
|
|
486 EQ (p1->included, p2->included)
|
|
|
487 &&
|
|
|
488 EQ (p1->config, p2->config)
|
|
|
489 &&
|
|
|
490 EQ (p1->filter, p2->filter)
|
|
|
491 &&
|
|
|
492 EQ (p1->style, p2->style)
|
|
|
493 &&
|
|
|
494 EQ (p1->selected, p2->selected)
|
|
|
495 &&
|
|
|
496 EQ (p1->keys, p2->keys)))
|
|
|
497 return 0;
|
|
|
498 return 1;
|
|
|
499 }
|
|
|
500
|
|
|
501 static void
|
|
|
502 print_gui_item (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
503 {
|
|
|
504 struct Lisp_Gui_Item *g = XGUI_ITEM (obj);
|
|
|
505 char buf[20];
|
|
|
506
|
|
|
507 if (print_readably)
|
|
|
508 error ("printing unreadable object #<gui-item 0x%x>", g->header.uid);
|
|
|
509
|
|
|
510 write_c_string ("#<gui-item ", printcharfun);
|
|
|
511 sprintf (buf, "0x%x>", g->header.uid);
|
|
|
512 write_c_string (buf, printcharfun);
|
|
|
513 }
|
|
|
514
|
|
|
515 DEFINE_LRECORD_IMPLEMENTATION ("gui-item", gui_item,
|
|
|
516 mark_gui_item, print_gui_item,
|
|
|
517 0, gui_item_equal,
|
|
|
518 gui_item_hash,
|
|
|
519 struct Lisp_Gui_Item);
|
|
|
520
|
|
0
|
521 void
|
|
|
522 syms_of_gui (void)
|
|
|
523 {
|
|
|
524 defkeyword (&Q_active, ":active");
|
|
|
525 defkeyword (&Q_suffix, ":suffix");
|
|
|
526 defkeyword (&Q_keys, ":keys");
|
|
377
|
527 defkeyword (&Q_key_sequence,":key-sequence");
|
|
0
|
528 defkeyword (&Q_style, ":style");
|
|
|
529 defkeyword (&Q_selected, ":selected");
|
|
|
530 defkeyword (&Q_filter, ":filter");
|
|
|
531 defkeyword (&Q_config, ":config");
|
|
|
532 defkeyword (&Q_included, ":included");
|
|
175
|
533 defkeyword (&Q_accelerator, ":accelerator");
|
|
377
|
534 defkeyword (&Q_label, ":label");
|
|
388
|
535 defkeyword (&Q_callback, ":callback");
|
|
0
|
536
|
|
|
537 defsymbol (&Qtoggle, "toggle");
|
|
|
538 defsymbol (&Qradio, "radio");
|
|
231
|
539
|
|
|
540 #ifdef HAVE_POPUPS
|
|
|
541 DEFSUBR (Fpopup_up_p);
|
|
|
542 #endif
|
|
0
|
543 }
|
|
|
544
|
|
|
545 void
|
|
|
546 vars_of_gui (void)
|
|
|
547 {
|
|
|
548 }
|
