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1 /* Generic glyph data structures + display tables
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2 Copyright (C) 1994 Board of Trustees, University of Illinois.
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3 Copyright (C) 1995, 1996 Ben Wing
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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 #ifndef _XEMACS_GLYPHS_H_
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25 #define _XEMACS_GLYPHS_H_
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26
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27 #include "specifier.h"
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28
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29 /*****************************************************************************
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30 * Image Instantiators *
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31 *****************************************************************************/
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32
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33 struct image_instantiator_methods;
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34
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35 /* Remember the distinction between image instantiator formats and
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36 image instance types. Here's an approximate mapping:
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37
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38 image instantiator format image instance type
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39 ------------------------- -------------------
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40 nothing nothing
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41 string text
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42 formatted-string text
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43 xbm mono-pixmap, color-pixmap, pointer
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44 xpm color-pixmap, mono-pixmap, pointer
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45 xface mono-pixmap, color-pixmap, pointer
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46 gif color-pixmap
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47 jpeg color-pixmap
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48 png color-pixmap
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49 tiff color-pixmap
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50 cursor-font pointer
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51 font pointer
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52 subwindow subwindow
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53 inherit mono-pixmap
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54 autodetect mono-pixmap, color-pixmap, pointer,
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55 text
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56 */
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57
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58 typedef struct ii_keyword_entry_dynarr_type
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59 {
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60 Dynarr_declare (struct ii_keyword_entry);
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61 } Ii_keyword_entry_dynarr;
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62
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63 /* These are methods specific to a particular format of image instantiator
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64 (e.g. xpm, string, etc.). */
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65
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66 struct image_instantiator_methods
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67 {
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68 Lisp_Object symbol;
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69
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70 Ii_keyword_entry_dynarr *keywords;
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71 /* Implementation specific methods: */
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72
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73 /* Validate method: Given an instantiator vector, signal an error if
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74 it's invalid for this image-instantiator format. Note that this
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75 validation only occurs after all the keyword-specific validation
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76 has already been performed. This is chiefly useful for making
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77 sure that certain required keywords are present. */
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78 void (*validate_method) (Lisp_Object instantiator);
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79
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80 /* Normalize method: Given an instantiator, convert it to the form
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81 that should be used in a glyph, for devices of type CONSOLE_TYPE.
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82 Signal an error if conversion fails. */
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83 Lisp_Object (*normalize_method) (Lisp_Object instantiator,
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84 Lisp_Object console_type);
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85
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86 /* Possible-dest-types method: Return a mask indicating what dest types
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87 are compatible with this format. */
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88 int (*possible_dest_types_method) (void);
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89
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90 /* Instantiate method: Given an instantiator and a partially
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91 filled-in image instance, complete the filling-in. Return
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92 non-zero if the instantiation succeeds, 0 if it fails.
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93 This must be present. */
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94 void (*instantiate_method) (Lisp_Object image_instance,
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95 Lisp_Object instantiator,
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96 Lisp_Object pointer_fg,
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97 Lisp_Object pointer_bg,
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98 int dest_mask);
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99 };
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100
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101 struct ii_keyword_entry
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102 {
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103 Lisp_Object keyword;
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104 void (*validate) (Lisp_Object data);
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105 int multiple_p;
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106 };
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107
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108 /***** Calling an image-instantiator method *****/
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109
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110 #define HAS_IIFORMAT_METH_P(mstruc, m) ((mstruc)->m##_method)
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111 #define IIFORMAT_METH(mstruc, m, args) (((mstruc)->m##_method) args)
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112
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113 /* Call a void-returning specifier method, if it exists */
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114 #define MAYBE_IIFORMAT_METH(mstruc, m, args) \
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115 do { \
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116 struct image_instantiator_methods *_maybe_iiformat_meth_mstruc = (mstruc); \
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117 if (HAS_IIFORMAT_METH_P (_maybe_iiformat_meth_mstruc, m)) \
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118 IIFORMAT_METH (_maybe_iiformat_meth_mstruc, m, args); \
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119 } while (0)
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120
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121 MAC_DECLARE_EXTERN (struct image_instantiator_methods *,
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122 MTiiformat_meth_or_given)
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123
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124 /* Call a specifier method, if it exists; otherwise return
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125 the specified value */
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126
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127 #define IIFORMAT_METH_OR_GIVEN(mstruc, m, args, given) \
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128 MAC_BEGIN \
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129 MAC_DECLARE (struct image_instantiator_methods *, \
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130 MTiiformat_meth_or_given, mstruc) \
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131 HAS_IIFORMAT_METH_P (MTiiformat_meth_or_given, m) ? \
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132 IIFORMAT_METH (MTiiformat_meth_or_given, m, args) : (given) \
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133 MAC_END
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134
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135 /***** Defining new image-instantiator types *****/
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136
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137 #define DECLARE_IMAGE_INSTANTIATOR_FORMAT(format) \
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138 extern struct image_instantiator_methods *format##_image_instantiator_methods
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139
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140 #define DEFINE_IMAGE_INSTANTIATOR_FORMAT(format) \
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141 struct image_instantiator_methods *format##_image_instantiator_methods
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142
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143 #define INITIALIZE_IMAGE_INSTANTIATOR_FORMAT(format, obj_name) \
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144 do { \
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145 format##_image_instantiator_methods = \
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146 malloc_type_and_zero (struct image_instantiator_methods); \
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147 defsymbol (&Q##format, obj_name); \
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148 format##_image_instantiator_methods->symbol = Q##format; \
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149 format##_image_instantiator_methods->keywords = \
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150 Dynarr_new (struct ii_keyword_entry); \
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151 add_entry_to_image_instantiator_format_list \
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152 (Q##format, format##_image_instantiator_methods); \
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153 } while (0)
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154
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155 /* Declare that image-instantiator format FORMAT has method M; used in
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156 initialization routines */
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157 #define IIFORMAT_HAS_METHOD(format, m) \
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158 (format##_image_instantiator_methods->m##_method = format##_##m)
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159
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160 /* Declare that KEYW is a valid keyword for image-instantiator format
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161 FORMAT. VALIDATE_FUN if a function that returns whether the data
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162 is valid. The keyword may not appear more than once. */
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163 #define IIFORMAT_VALID_KEYWORD(format, keyw, validate_fun) \
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164 do { \
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165 struct ii_keyword_entry entry; \
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166 \
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167 entry.keyword = keyw; \
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168 entry.validate = validate_fun; \
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169 entry.multiple_p = 0; \
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170 Dynarr_add (format##_image_instantiator_methods->keywords, \
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171 entry); \
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172 } while (0)
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173
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174 /* Same as IIFORMAT_VALID_KEYWORD except that the keyword may
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175 appear multiple times. */
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176 #define IIFORMAT_VALID_MULTI_KEYWORD(format, keyword, validate_fun) \
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177 do { \
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178 struct ii_keyword_entry entry; \
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179 \
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180 entry.keyword = keyword; \
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181 entry.validate = validate_fun; \
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182 entry.multiple_p = 1; \
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183 Dynarr_add (format##_image_instantiator_methods->keywords, \
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184 entry); \
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185 } while (0)
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186
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187 extern Lisp_Object Q_data, Q_file;
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188
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189 void add_entry_to_image_instantiator_format_list (Lisp_Object symbol,
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190 struct image_instantiator_methods *meths);
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191 Lisp_Object find_keyword_in_vector (Lisp_Object vector,
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192 Lisp_Object keyword);
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193 Lisp_Object find_keyword_in_vector_or_given (Lisp_Object vector,
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194 Lisp_Object keyword,
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195 Lisp_Object defalt);
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196 void check_valid_string (Lisp_Object data);
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197 void check_valid_int (Lisp_Object data);
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198 DECLARE_DOESNT_RETURN (incompatible_image_types (Lisp_Object instantiator,
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199 int given_dest_mask,
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200 int desired_dest_mask));
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201
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202 /*****************************************************************************
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203 * Image Specifier Object *
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204 *****************************************************************************/
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205
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206 DECLARE_SPECIFIER_TYPE (image);
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207 extern Lisp_Object Qimage;
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208 #define XIMAGE_SPECIFIER(x) XSPECIFIER_TYPE (x, image)
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209 #define XSETIMAGE_SPECIFIER(x, p) XSETSPECIFIER_TYPE (x, p, image)
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210 #define IMAGE_SPECIFIERP(x) SPECIFIER_TYPEP (x, image)
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211 #define CHECK_IMAGE_SPECIFIER(x) CHECK_SPECIFIER_TYPE (x, image)
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212 #define CONCHECK_IMAGE_SPECIFIER(x) CONCHECK_SPECIFIER_TYPE (x, image)
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213
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214 void set_image_attached_to (Lisp_Object obj, Lisp_Object face_or_glyph,
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215 Lisp_Object property);
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216
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217 struct image_specifier
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218 {
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219 int allowed;
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220 Lisp_Object attachee; /* face or glyph this is attached to, or nil */
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221 Lisp_Object attachee_property;/* property of that face or glyph */
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222 };
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223
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224 #define IMAGE_SPECIFIER_DATA(g) (SPECIFIER_TYPE_DATA (g, image))
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225 #define IMAGE_SPECIFIER_ALLOWED(g) (IMAGE_SPECIFIER_DATA (g)->allowed)
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226 #define IMAGE_SPECIFIER_ATTACHEE(g) (IMAGE_SPECIFIER_DATA (g)->attachee)
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227 #define IMAGE_SPECIFIER_ATTACHEE_PROPERTY(g) \
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228 (IMAGE_SPECIFIER_DATA (g)->attachee_property)
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229
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230 #define XIMAGE_SPECIFIER_ALLOWED(g) \
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231 IMAGE_SPECIFIER_ALLOWED (XIMAGE_SPECIFIER (g))
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232
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233 /*****************************************************************************
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234 * Image Instance Object *
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235 *****************************************************************************/
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236
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237 DECLARE_LRECORD (image_instance, struct Lisp_Image_Instance);
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238 #define XIMAGE_INSTANCE(x) \
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239 XRECORD (x, image_instance, struct Lisp_Image_Instance)
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240 #define XSETIMAGE_INSTANCE(x, p) XSETRECORD (x, p, image_instance)
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241 #define IMAGE_INSTANCEP(x) RECORDP (x, image_instance)
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242 #define GC_IMAGE_INSTANCEP(x) GC_RECORDP (x, image_instance)
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243 #define CHECK_IMAGE_INSTANCE(x) CHECK_RECORD (x, image_instance)
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244 #define CONCHECK_IMAGE_INSTANCE(x) CONCHECK_RECORD (x, image_instance)
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245
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246 enum image_instance_type
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247 {
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248 IMAGE_UNKNOWN,
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249 IMAGE_NOTHING,
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250 IMAGE_TEXT,
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251 IMAGE_MONO_PIXMAP,
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252 IMAGE_COLOR_PIXMAP,
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253 IMAGE_POINTER,
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254 IMAGE_SUBWINDOW
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255 };
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256
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257 #define IMAGE_NOTHING_MASK (1 << 0)
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258 #define IMAGE_TEXT_MASK (1 << 1)
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259 #define IMAGE_MONO_PIXMAP_MASK (1 << 2)
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260 #define IMAGE_COLOR_PIXMAP_MASK (1 << 3)
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261 #define IMAGE_POINTER_MASK (1 << 4)
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262 #define IMAGE_SUBWINDOW_MASK (1 << 5)
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263
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264 extern Lisp_Object Qnothing_image_instance_p, Qtext_image_instance_p;
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265 extern Lisp_Object Qmono_pixmap_image_instance_p;
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266 extern Lisp_Object Qcolor_pixmap_image_instance_p;
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267 extern Lisp_Object Qpointer_image_instance_p;
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268 extern Lisp_Object Qsubwindow_image_instance_p;
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269
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270 #define IMAGE_INSTANCE_TYPE_P(ii, type) \
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271 (IMAGE_INSTANCEP (ii) && XIMAGE_INSTANCE_TYPE (ii) == type)
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272
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273 #define NOTHING_IMAGE_INSTANCEP(ii) IMAGE_INSTANCE_TYPE_P (ii, IMAGE_NOTHING)
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274 #define TEXT_IMAGE_INSTANCEP(ii) IMAGE_INSTANCE_TYPE_P (ii, IMAGE_TEXT)
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275 #define MONO_PIXMAP_IMAGE_INSTANCEP(ii) \
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276 IMAGE_INSTANCE_TYPE_P (ii, IMAGE_MONO_PIXMAP)
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277 #define COLOR_PIXMAP_IMAGE_INSTANCEP(ii) \
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278 IMAGE_INSTANCE_TYPE_P (ii, IMAGE_COLOR_PIXMAP)
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279 #define POINTER_IMAGE_INSTANCEP(ii) IMAGE_INSTANCE_TYPE_P (ii, IMAGE_POINTER)
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280 #define SUBWINDOW_IMAGE_INSTANCEP(ii) \
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281 IMAGE_INSTANCE_TYPE_P (ii, IMAGE_SUBWINDOW)
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282
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283 #define CHECK_NOTHING_IMAGE_INSTANCE(x) \
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284 do { CHECK_IMAGE_INSTANCE (x); \
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285 if (!NOTHING_IMAGE_INSTANCEP (x)) \
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286 x = wrong_type_argument (Qnothing_image_instance_p, (x)); \
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287 } while (0)
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288
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289 #define CHECK_TEXT_IMAGE_INSTANCE(x) \
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290 do { CHECK_IMAGE_INSTANCE (x); \
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291 if (!TEXT_IMAGE_INSTANCEP (x)) \
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292 x = wrong_type_argument (Qtext_image_instance_p, (x)); \
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293 } while (0)
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294
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295 #define CHECK_MONO_PIXMAP_IMAGE_INSTANCE(x) \
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296 do { CHECK_IMAGE_INSTANCE (x); \
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297 if (!MONO_PIXMAP_IMAGE_INSTANCEP (x)) \
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298 x = wrong_type_argument (Qmono_pixmap_image_instance_p, (x)); \
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299 } while (0)
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300
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301 #define CHECK_COLOR_PIXMAP_IMAGE_INSTANCE(x) \
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302 do { CHECK_IMAGE_INSTANCE (x); \
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303 if (!COLOR_PIXMAP_IMAGE_INSTANCEP (x)) \
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304 x = wrong_type_argument (Qcolor_pixmap_image_instance_p, (x)); \
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305 } while (0)
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306
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307 #define CHECK_POINTER_IMAGE_INSTANCE(x) \
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308 do { CHECK_IMAGE_INSTANCE (x); \
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309 if (!POINTER_IMAGE_INSTANCEP (x)) \
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310 x = wrong_type_argument (Qpointer_image_instance_p, (x)); \
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311 } while (0)
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312
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313 #define CHECK_SUBWINDOW_IMAGE_INSTANCE(x) \
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314 do { CHECK_IMAGE_INSTANCE (x); \
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315 if (!SUBWINDOW_IMAGE_INSTANCEP (x)) \
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316 x = wrong_type_argument (Qsubwindow_image_instance_p, (x)); \
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317 } while (0)
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318
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319 struct Lisp_Image_Instance
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320 {
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321 struct lcrecord_header header;
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322 Lisp_Object device;
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323 Lisp_Object name;
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324 enum image_instance_type type;
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325 union
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326 {
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327 struct
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328 {
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329 Lisp_Object string;
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330 } text;
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331 struct
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332 {
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333 int width, height, depth;
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334 Lisp_Object hotspot_x, hotspot_y; /* integer or Qnil */
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335 Lisp_Object filename; /* string or Qnil */
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336 Lisp_Object mask_filename; /* string or Qnil */
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337 Lisp_Object fg, bg; /* foreground and background colors,
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338 if this is a colorized mono-pixmap
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339 or a pointer */
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340 } pixmap; /* used for pointers as well */
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341 struct
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342 {
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343 int dummy; /* #### fill in this structure */
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344 } subwindow;
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345 } u;
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346
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347 /* console-type- and image-type-specific data */
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348 void *data;
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349 };
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350
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351 #define IMAGE_INSTANCE_DEVICE(i) ((i)->device)
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352 #define IMAGE_INSTANCE_NAME(i) ((i)->name)
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353 #define IMAGE_INSTANCE_TYPE(i) ((i)->type)
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354 #define IMAGE_INSTANCE_PIXMAP_TYPE_P(i) \
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355 ((IMAGE_INSTANCE_TYPE (i) == IMAGE_MONO_PIXMAP) \
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356 || (IMAGE_INSTANCE_TYPE (i) == IMAGE_COLOR_PIXMAP))
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357
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358 #define IMAGE_INSTANCE_TEXT_STRING(i) ((i)->u.text.string)
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359
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360 #define IMAGE_INSTANCE_PIXMAP_WIDTH(i) ((i)->u.pixmap.width)
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361 #define IMAGE_INSTANCE_PIXMAP_HEIGHT(i) ((i)->u.pixmap.height)
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362 #define IMAGE_INSTANCE_PIXMAP_DEPTH(i) ((i)->u.pixmap.depth)
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363 #define IMAGE_INSTANCE_PIXMAP_FILENAME(i) ((i)->u.pixmap.filename)
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364 #define IMAGE_INSTANCE_PIXMAP_MASK_FILENAME(i) ((i)->u.pixmap.mask_filename)
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365 #define IMAGE_INSTANCE_PIXMAP_HOTSPOT_X(i) ((i)->u.pixmap.hotspot_x)
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366 #define IMAGE_INSTANCE_PIXMAP_HOTSPOT_Y(i) ((i)->u.pixmap.hotspot_y)
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367 #define IMAGE_INSTANCE_PIXMAP_FG(i) ((i)->u.pixmap.fg)
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368 #define IMAGE_INSTANCE_PIXMAP_BG(i) ((i)->u.pixmap.bg)
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369
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370 #define XIMAGE_INSTANCE_DEVICE(i) \
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371 IMAGE_INSTANCE_DEVICE (XIMAGE_INSTANCE (i))
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372 #define XIMAGE_INSTANCE_NAME(i) \
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373 IMAGE_INSTANCE_NAME (XIMAGE_INSTANCE (i))
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374 #define XIMAGE_INSTANCE_TYPE(i) \
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375 IMAGE_INSTANCE_TYPE (XIMAGE_INSTANCE (i))
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376
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377 #define XIMAGE_INSTANCE_TEXT_STRING(i) \
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378 IMAGE_INSTANCE_TEXT_STRING (XIMAGE_INSTANCE (i))
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379
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380 #define XIMAGE_INSTANCE_PIXMAP_WIDTH(i) \
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381 IMAGE_INSTANCE_PIXMAP_WIDTH (XIMAGE_INSTANCE (i))
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382 #define XIMAGE_INSTANCE_PIXMAP_HEIGHT(i) \
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383 IMAGE_INSTANCE_PIXMAP_HEIGHT (XIMAGE_INSTANCE (i))
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384 #define XIMAGE_INSTANCE_PIXMAP_DEPTH(i) \
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385 IMAGE_INSTANCE_PIXMAP_DEPTH (XIMAGE_INSTANCE (i))
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386 #define XIMAGE_INSTANCE_PIXMAP_FILENAME(i) \
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387 IMAGE_INSTANCE_PIXMAP_FILENAME (XIMAGE_INSTANCE (i))
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388 #define XIMAGE_INSTANCE_PIXMAP_MASK_FILENAME(i) \
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389 IMAGE_INSTANCE_PIXMAP_MASK_FILENAME (XIMAGE_INSTANCE (i))
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390 #define XIMAGE_INSTANCE_PIXMAP_HOTSPOT_X(i) \
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391 IMAGE_INSTANCE_PIXMAP_HOTSPOT_X (XIMAGE_INSTANCE (i))
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392 #define XIMAGE_INSTANCE_PIXMAP_HOTSPOT_Y(i) \
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393 IMAGE_INSTANCE_PIXMAP_HOTSPOT_Y (XIMAGE_INSTANCE (i))
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394 #define XIMAGE_INSTANCE_PIXMAP_FG(i) \
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395 IMAGE_INSTANCE_PIXMAP_FG (XIMAGE_INSTANCE (i))
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396 #define XIMAGE_INSTANCE_PIXMAP_BG(i) \
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397 IMAGE_INSTANCE_PIXMAP_BG (XIMAGE_INSTANCE (i))
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398
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399 /*****************************************************************************
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400 * Glyph Object *
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401 *****************************************************************************/
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402
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403 enum glyph_type
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404 {
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405 GLYPH_UNKNOWN,
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406 GLYPH_BUFFER,
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407 GLYPH_POINTER,
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408 GLYPH_ICON
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409 };
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410
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411 struct Lisp_Glyph
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412 {
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413 struct lcrecord_header header;
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414
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415 enum glyph_type type;
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416
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417 /* specifiers: */
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418 Lisp_Object image; /* the actual image */
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419 Lisp_Object contrib_p; /* whether to figure into line height */
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420 Lisp_Object baseline; /* percent above baseline */
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421
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422 Lisp_Object face; /* if non-nil, face to use when displaying */
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423
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424 Lisp_Object plist;
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425 void (*after_change) (Lisp_Object glyph, Lisp_Object property,
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426 Lisp_Object locale);
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427 };
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428
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429 DECLARE_LRECORD (glyph, struct Lisp_Glyph);
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430 #define XGLYPH(x) XRECORD (x, glyph, struct Lisp_Glyph)
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431 #define XSETGLYPH(x, p) XSETRECORD (x, p, glyph)
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432 #define GLYPHP(x) RECORDP (x, glyph)
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433 #define GC_GLYPHP(x) GC_RECORDP (x, glyph)
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434 #define CHECK_GLYPH(x) CHECK_RECORD (x, glyph)
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435 #define CONCHECK_GLYPH(x) CONCHECK_RECORD (x, glyph)
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436
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437 extern Lisp_Object Qbuffer_glyph_p, Qpointer_glyph_p, Qicon_glyph_p;
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438
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439 #define CHECK_BUFFER_GLYPH(x) \
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440 do { CHECK_GLYPH (x); \
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441 if (XGLYPH (x)->type != GLYPH_BUFFER) \
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442 x = wrong_type_argument (Qbuffer_glyph_p, (x)); \
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443 } while (0)
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444
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445 #define CHECK_POINTER_GLYPH(x) \
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446 do { CHECK_GLYPH (x); \
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447 if (XGLYPH (x)->type != GLYPH_POINTER) \
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448 x = wrong_type_argument (Qpointer_glyph_p, (x)); \
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449 } while (0)
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450
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451 #define CHECK_ICON_GLYPH(x) \
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452 do { CHECK_GLYPH (x); \
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453 if (XGLYPH (x)->type != GLYPH_ICON) \
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454 x = wrong_type_argument (Qicon_glyph_p, (x)); \
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455 } while (0)
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456
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457 #define GLYPH_TYPE(g) ((g)->type)
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458 #define GLYPH_IMAGE(g) ((g)->image)
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459 #define GLYPH_CONTRIB_P(g) ((g)->contrib_p)
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460 #define GLYPH_BASELINE(g) ((g)->baseline)
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461 #define GLYPH_FACE(g) ((g)->face)
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462
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463 #define XGLYPH_TYPE(g) GLYPH_TYPE (XGLYPH (g))
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464 #define XGLYPH_IMAGE(g) GLYPH_IMAGE (XGLYPH (g))
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465 #define XGLYPH_CONTRIB_P(g) GLYPH_CONTRIB_P (XGLYPH (g))
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466 #define XGLYPH_BASELINE(g) GLYPH_BASELINE (XGLYPH (g))
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467 #define XGLYPH_FACE(g) GLYPH_FACE (XGLYPH (g))
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468
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469 extern Lisp_Object Vtruncation_glyph, Vcontinuation_glyph, Voctal_escape_glyph;
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470 extern Lisp_Object Vcontrol_arrow_glyph, Vinvisible_text_glyph, Vhscroll_glyph;
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471 extern Lisp_Object Vxemacs_logo;
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472
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473 unsigned short glyph_width (Lisp_Object glyph, Lisp_Object frame_face,
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474 face_index window_findex,
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475 Lisp_Object window);
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476 unsigned short glyph_ascent (Lisp_Object glyph, Lisp_Object frame_face,
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477 face_index window_findex,
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478 Lisp_Object window);
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479 unsigned short glyph_descent (Lisp_Object glyph,
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480 Lisp_Object frame_face,
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481 face_index window_findex,
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482 Lisp_Object window);
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483 unsigned short glyph_height (Lisp_Object glyph, Lisp_Object frame_face,
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484 face_index window_findex,
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485 Lisp_Object window);
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486 Lisp_Object glyph_baseline (Lisp_Object glyph, Lisp_Object domain);
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487 Lisp_Object glyph_face (Lisp_Object glyph, Lisp_Object domain);
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488 int glyph_contrib_p (Lisp_Object glyph, Lisp_Object domain);
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489 Lisp_Object glyph_image_instance (Lisp_Object glyph,
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490 Lisp_Object domain,
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491 Error_behavior errb, int no_quit);
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492 void file_or_data_must_be_present (Lisp_Object instantiator);
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493 void data_must_be_present (Lisp_Object instantiator);
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494 Lisp_Object make_string_from_file (Lisp_Object file);
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495 Lisp_Object tagged_vector_to_alist (Lisp_Object vector);
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496 Lisp_Object alist_to_tagged_vector (Lisp_Object tag, Lisp_Object alist);
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497 void string_instantiate (Lisp_Object image_instance, Lisp_Object instantiator,
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498 Lisp_Object pointer_fg, Lisp_Object pointer_bg,
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499 int dest_mask);
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500 Lisp_Object allocate_glyph (enum glyph_type type,
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501 void (*after_change) (Lisp_Object glyph,
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502 Lisp_Object property,
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503 Lisp_Object locale));
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504
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505 /*****************************************************************************
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506 * Glyph Cachels *
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507 *****************************************************************************/
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508
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509 struct glyph_cachel
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510 {
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511 Lisp_Object glyph;
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512
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513 unsigned int updated :1;
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514 unsigned short width;
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515 unsigned short ascent;
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516 unsigned short descent;
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517 };
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518
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519 #define CONT_GLYPH_INDEX (glyph_index) 0
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520 #define TRUN_GLYPH_INDEX (glyph_index) 1
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521 #define HSCROLL_GLYPH_INDEX (glyph_index) 2
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522 #define CONTROL_GLYPH_INDEX (glyph_index) 3
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523 #define OCT_ESC_GLYPH_INDEX (glyph_index) 4
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524 #define INVIS_GLYPH_INDEX (glyph_index) 5
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525
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526 #define GLYPH_CACHEL(window, index) \
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527 Dynarr_atp (window->glyph_cachels, index)
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528 #define GLYPH_CACHEL_GLYPH(window, index) \
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529 Dynarr_atp (window->glyph_cachels, index)->glyph
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530 #define GLYPH_CACHEL_WIDTH(window, index) \
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531 Dynarr_atp (window->glyph_cachels, index)->width
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532 #define GLYPH_CACHEL_ASCENT(window, index) \
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533 Dynarr_atp (window->glyph_cachels, index)->ascent
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534 #define GLYPH_CACHEL_DESCENT(window, index) \
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535 Dynarr_atp (window->glyph_cachels, index)->descent
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536
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537 void mark_glyph_cachels (glyph_cachel_dynarr *elements,
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538 void (*markobj) (Lisp_Object));
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|
539 void mark_glyph_cachels_as_not_updated (struct window *w);
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|
|
540 void reset_glyph_cachels (struct window *w);
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|
|
541 #ifdef MEMORY_USAGE_STATS
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|
|
542 int compute_glyph_cachel_usage (glyph_cachel_dynarr *glyph_cachels,
|
|
|
543 struct overhead_stats *ovstats);
|
|
|
544 #endif /* MEMORY_USAGE_STATS */
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|
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545
|
|
|
546 /*****************************************************************************
|
|
|
547 * Display Tables *
|
|
|
548 *****************************************************************************/
|
|
|
549
|
|
|
550 #define DISP_TABLE_SIZE 256
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|
|
551 #define DISP_CHAR_ENTRY(dp, c) ((dp)->contents[c])
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552
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553 struct Lisp_Vector *get_display_table (struct window *, face_index);
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554
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555 #endif /* _XEMACS_GLYPHS_H_ */
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