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428
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1 /* TTY-specific Lisp objects.
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2 Copyright (C) 1995 Board of Trustees, University of Illinois.
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771
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3 Copyright (C) 1995, 1996, 2001 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 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 /* Synched up with: Not in FSF. */
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23
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24 #include <config.h>
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25 #include "lisp.h"
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26
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27 #include "console-tty.h"
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28 #include "insdel.h"
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29 #include "objects-tty.h"
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30 #include "device.h"
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771
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31 #include "charset.h"
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428
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32
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33 /* An alist mapping from color names to a cons of (FG-STRING, BG-STRING). */
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34 Lisp_Object Vtty_color_alist;
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35 #if 0 /* This stuff doesn't quite work yet */
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36 Lisp_Object Vtty_dynamic_color_fg;
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37 Lisp_Object Vtty_dynamic_color_bg;
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38 #endif
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39
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40 DEFUN ("register-tty-color", Fregister_tty_color, 3, 3, 0, /*
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41 Register COLOR as a recognized TTY color.
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42 COLOR should be a string.
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43 Strings FG-STRING and BG-STRING should specify the escape sequences to
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44 set the foreground and background to the given color, respectively.
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45 */
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46 (color, fg_string, bg_string))
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47 {
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48 CHECK_STRING (color);
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49 CHECK_STRING (fg_string);
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50 CHECK_STRING (bg_string);
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51
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52 color = Fintern (color, Qnil);
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53 Vtty_color_alist = Fremassq (color, Vtty_color_alist);
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54 Vtty_color_alist = Fcons (Fcons (color, Fcons (fg_string, bg_string)),
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55 Vtty_color_alist);
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56
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57 return Qnil;
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58 }
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59
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60 DEFUN ("unregister-tty-color", Funregister_tty_color, 1, 1, 0, /*
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61 Unregister COLOR as a recognized TTY color.
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62 */
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63 (color))
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64 {
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65 CHECK_STRING (color);
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66
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67 color = Fintern (color, Qnil);
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68 Vtty_color_alist = Fremassq (color, Vtty_color_alist);
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69 return Qnil;
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70 }
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71
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72 DEFUN ("find-tty-color", Ffind_tty_color, 1, 1, 0, /*
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73 Look up COLOR in the list of registered TTY colors.
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74 If it is found, return a list (FG-STRING BG-STRING) of the escape
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75 sequences used to set the foreground and background to the color, respectively.
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76 If it is not found, return nil.
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77 */
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78 (color))
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79 {
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80 Lisp_Object result;
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81
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82 CHECK_STRING (color);
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83
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84 result = Fassq (Fintern (color, Qnil), Vtty_color_alist);
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85 if (!NILP (result))
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86 return list2 (Fcar (Fcdr (result)), Fcdr (Fcdr (result)));
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87 else
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88 return Qnil;
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89 }
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90
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91 DEFUN ("tty-color-list", Ftty_color_list, 0, 0, 0, /*
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92 Return a list of the registered TTY colors.
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93 */
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94 ())
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95 {
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96 Lisp_Object result = Qnil;
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97 Lisp_Object rest;
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98
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99 LIST_LOOP (rest, Vtty_color_alist)
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100 {
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101 result = Fcons (Fsymbol_name (XCAR (XCAR (rest))), result);
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102 }
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103
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104 return Fnreverse (result);
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105 }
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106
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107 #if 0
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108
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109 /* This approach is too simplistic. The problem is that the
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110 dynamic color settings apply to *all* text in the default color,
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111 not just the text output after the escape sequence has been given. */
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112
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113 DEFUN ("set-tty-dynamic-color-specs", Fset_tty_dynamic_color_specs, 2, 2, 0, /*
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114 Set the dynamic color specifications for TTY's.
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115 FG and BG should be either nil or vaguely printf-like strings,
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116 where each occurrence of %s is replaced with the color name and each
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117 occurrence of %% is replaced with a single % character.
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118 */
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119 (fg, bg))
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120 {
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121 if (!NILP (fg))
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122 CHECK_STRING (fg);
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123 if (!NILP (bg))
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124 CHECK_STRING (bg);
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125
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126 Vtty_dynamic_color_fg = fg;
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127 Vtty_dynamic_color_bg = bg;
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128
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129 return Qnil;
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130 }
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131
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132 DEFUN ("tty-dynamic-color-specs", Ftty_dynamic_color_specs, 0, 0, 0, /*
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133 Return the dynamic color specifications for TTY's as a list of (FG BG).
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134 See `set-tty-dynamic-color-specs'.
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135 */
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136 ())
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137 {
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138 return list2 (Vtty_dynamic_color_fg, Vtty_dynamic_color_bg);
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139 }
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140
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141 #endif /* 0 */
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142
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143 static int
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440
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144 tty_initialize_color_instance (Lisp_Color_Instance *c, Lisp_Object name,
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578
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145 Lisp_Object device, Error_Behavior errb)
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428
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146 {
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147 Lisp_Object result;
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148
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149 name = Fintern (name, Qnil);
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150 result = assq_no_quit (name, Vtty_color_alist);
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151
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152 if (NILP (result))
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153 {
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154 #if 0
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155 if (!STRINGP (Vtty_dynamic_color_fg)
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156 && !STRINGP (Vtty_dynamic_color_bg))
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157 #endif
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158 return 0;
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159 }
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160
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161 /* Don't allocate the data until we're sure that we will succeed. */
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162 c->data = xnew (struct tty_color_instance_data);
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163 COLOR_INSTANCE_TTY_SYMBOL (c) = name;
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164
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165 return 1;
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166 }
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167
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168 static void
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440
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169 tty_mark_color_instance (Lisp_Color_Instance *c)
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428
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170 {
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171 mark_object (COLOR_INSTANCE_TTY_SYMBOL (c));
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172 }
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173
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174 static void
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440
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175 tty_print_color_instance (Lisp_Color_Instance *c,
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428
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176 Lisp_Object printcharfun,
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177 int escapeflag)
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178 {
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179 }
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180
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181 static void
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440
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182 tty_finalize_color_instance (Lisp_Color_Instance *c)
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428
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183 {
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184 if (c->data)
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185 xfree (c->data);
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186 }
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187
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188 static int
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440
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189 tty_color_instance_equal (Lisp_Color_Instance *c1,
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190 Lisp_Color_Instance *c2,
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428
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191 int depth)
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192 {
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193 return (EQ (COLOR_INSTANCE_TTY_SYMBOL (c1),
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194 COLOR_INSTANCE_TTY_SYMBOL (c2)));
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195 }
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196
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197 static unsigned long
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440
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198 tty_color_instance_hash (Lisp_Color_Instance *c, int depth)
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428
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199 {
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200 return LISP_HASH (COLOR_INSTANCE_TTY_SYMBOL (c));
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201 }
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202
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203 static int
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204 tty_valid_color_name_p (struct device *d, Lisp_Object color)
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205 {
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206 return (!NILP (assoc_no_quit (Fintern (color, Qnil), Vtty_color_alist)));
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207 #if 0
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208 || STRINGP (Vtty_dynamic_color_fg)
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209 || STRINGP (Vtty_dynamic_color_bg)
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210 #endif
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211 }
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212
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213
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214 static int
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440
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215 tty_initialize_font_instance (Lisp_Font_Instance *f, Lisp_Object name,
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578
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216 Lisp_Object device, Error_Behavior errb)
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428
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217 {
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665
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218 Intbyte *str = XSTRING_DATA (name);
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428
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219 Lisp_Object charset = Qnil;
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220
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771
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221 if (qxestrncmp_c (str, "normal", 6))
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428
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222 return 0;
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223 str += 6;
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224 if (*str)
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225 {
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226 #ifdef MULE
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227 if (*str != '/')
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228 return 0;
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229 str++;
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771
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230 charset = Ffind_charset (intern_int (str));
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428
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231 if (NILP (charset))
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232 return 0;
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233 #else
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234 return 0;
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235 #endif
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236 }
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237
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238 /* Don't allocate the data until we're sure that we will succeed. */
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239 f->data = xnew (struct tty_font_instance_data);
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240 FONT_INSTANCE_TTY_CHARSET (f) = charset;
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241 #ifdef MULE
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242 if (CHARSETP (charset))
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243 f->width = XCHARSET_COLUMNS (charset);
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244 else
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245 #endif
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246 f->width = 1;
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247
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248 f->proportional_p = 0;
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249 f->ascent = f->height = 1;
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250 f->descent = 0;
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251
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252 return 1;
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253 }
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254
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255 static void
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440
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256 tty_mark_font_instance (Lisp_Font_Instance *f)
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428
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257 {
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258 mark_object (FONT_INSTANCE_TTY_CHARSET (f));
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259 }
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260
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261 static void
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440
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262 tty_print_font_instance (Lisp_Font_Instance *f,
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428
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263 Lisp_Object printcharfun,
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264 int escapeflag)
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265 {
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266 }
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267
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268 static void
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440
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269 tty_finalize_font_instance (Lisp_Font_Instance *f)
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428
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270 {
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271 if (f->data)
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272 xfree (f->data);
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273 }
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274
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275 static Lisp_Object
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276 tty_list_fonts (Lisp_Object pattern, Lisp_Object device)
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277 {
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278 return list1 (build_string ("normal"));
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279 }
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280
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281 #ifdef MULE
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282
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283 static int
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284 tty_font_spec_matches_charset (struct device *d, Lisp_Object charset,
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665
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285 const Intbyte *nonreloc, Lisp_Object reloc,
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428
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286 Bytecount offset, Bytecount length)
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287 {
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665
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288 const Intbyte *the_nonreloc = nonreloc;
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428
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289
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290 if (!the_nonreloc)
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291 the_nonreloc = XSTRING_DATA (reloc);
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292 fixup_internal_substring (nonreloc, reloc, offset, &length);
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293 the_nonreloc += offset;
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294
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295 if (UNBOUNDP (charset))
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296 return !memchr (the_nonreloc, '/', length);
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665
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297 the_nonreloc = (const Intbyte *) memchr (the_nonreloc, '/', length);
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428
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298 if (!the_nonreloc)
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299 return 0;
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300 the_nonreloc++;
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301 {
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440
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302 Lisp_String *s = symbol_name (XSYMBOL (XCHARSET_NAME (charset)));
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442
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303 return !strcmp ((const char *) the_nonreloc,
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304 (const char *) string_data (s));
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428
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305 }
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306 }
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307
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308 /* find a font spec that matches font spec FONT and also matches
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309 (the registry of) CHARSET. */
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310 static Lisp_Object
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311 tty_find_charset_font (Lisp_Object device, Lisp_Object font,
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312 Lisp_Object charset)
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313 {
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665
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314 Intbyte *fontname = XSTRING_DATA (font);
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428
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315
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442
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316 if (strchr ((const char *) fontname, '/'))
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428
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317 {
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318 if (tty_font_spec_matches_charset (XDEVICE (device), charset, 0,
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319 font, 0, -1))
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320 return font;
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321 return Qnil;
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322 }
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323
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324 if (UNBOUNDP (charset))
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325 return font;
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326
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327 return concat3 (font, build_string ("/"),
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328 Fsymbol_name (XCHARSET_NAME (charset)));
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329 }
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330
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331 #endif /* MULE */
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332
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333
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334 /************************************************************************/
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335 /* initialization */
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336 /************************************************************************/
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337
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338 void
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339 syms_of_objects_tty (void)
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340 {
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341 DEFSUBR (Fregister_tty_color);
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342 DEFSUBR (Funregister_tty_color);
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343 DEFSUBR (Ffind_tty_color);
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344 DEFSUBR (Ftty_color_list);
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345 #if 0
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346 DEFSUBR (Fset_tty_dynamic_color_specs);
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347 DEFSUBR (Ftty_dynamic_color_specs);
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348 #endif
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349 }
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350
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351 void
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352 console_type_create_objects_tty (void)
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353 {
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354 /* object methods */
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355 CONSOLE_HAS_METHOD (tty, initialize_color_instance);
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356 CONSOLE_HAS_METHOD (tty, mark_color_instance);
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357 CONSOLE_HAS_METHOD (tty, print_color_instance);
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358 CONSOLE_HAS_METHOD (tty, finalize_color_instance);
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359 CONSOLE_HAS_METHOD (tty, color_instance_equal);
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360 CONSOLE_HAS_METHOD (tty, color_instance_hash);
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361 CONSOLE_HAS_METHOD (tty, valid_color_name_p);
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362
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363 CONSOLE_HAS_METHOD (tty, initialize_font_instance);
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364 CONSOLE_HAS_METHOD (tty, mark_font_instance);
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365 CONSOLE_HAS_METHOD (tty, print_font_instance);
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366 CONSOLE_HAS_METHOD (tty, finalize_font_instance);
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367 CONSOLE_HAS_METHOD (tty, list_fonts);
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368 #ifdef MULE
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369 CONSOLE_HAS_METHOD (tty, font_spec_matches_charset);
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370 CONSOLE_HAS_METHOD (tty, find_charset_font);
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371 #endif
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372 }
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373
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374 void
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375 vars_of_objects_tty (void)
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376 {
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377 staticpro (&Vtty_color_alist);
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378 Vtty_color_alist = Qnil;
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379
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380 #if 0
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381 staticpro (&Vtty_dynamic_color_fg);
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382 Vtty_dynamic_color_fg = Qnil;
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383
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384 staticpro (&Vtty_dynamic_color_bg);
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385 Vtty_dynamic_color_bg = Qnil;
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386 #endif
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387 }
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