Mercurial > hg > xemacs-beta
annotate src/select-common.h @ 4978:f48bf636045f
Automatic merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 05 Feb 2010 05:04:43 -0600 |
| parents | 304aebb79cd3 |
| children | 4aebb0131297 |
| rev | line source |
|---|---|
| 647 | 1 /* Selection processing for XEmacs -- common btwn select-x.c and select-gtk.c |
| 2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: Not synched with FSF. */ | |
| 22 | |
| 23 #ifdef PROCESSING_X_CODE | |
| 24 #define XE_ATOM_TYPE Atom | |
| 25 #define XE_ATOM_TO_SYMBOL x_atom_to_symbol | |
| 26 #define XE_SYMBOL_TO_ATOM symbol_to_x_atom | |
| 27 #else | |
| 28 #define XE_ATOM_TYPE GdkAtom | |
| 29 #define XE_ATOM_TO_SYMBOL atom_to_symbol | |
| 30 #define XE_SYMBOL_TO_ATOM symbol_to_gtk_atom | |
| 31 #endif /* PROCESSING_X_CODE */ | |
| 32 | |
| 33 /* #### These are going to move into Lisp code(!) with the aid of | |
| 34 some new functions I'm working on - ajh */ | |
| 35 | |
| 36 /* These functions convert from the selection data read from the server into | |
| 37 something that we can use from elisp, and vice versa. | |
| 38 | |
| 39 Type: Format: Size: Elisp Type: | |
| 40 ----- ------- ----- ----------- | |
| 41 * 8 * String | |
| 42 ATOM 32 1 Symbol | |
| 43 ATOM 32 > 1 Vector of Symbols | |
| 44 * 16 1 Integer | |
| 45 * 16 > 1 Vector of Integers | |
| 46 * 32 1 if <=16 bits: Integer | |
| 47 if > 16 bits: Cons of top16, bot16 | |
| 48 * 32 > 1 Vector of the above | |
| 49 | |
| 3833 | 50 NOTE NOTE NOTE: |
| 51 Format == 32 means that the buffer will be C longs, which need not be | |
| 52 32-bit quantities. See the note in select-x.c (x_get_window_property). | |
| 53 | |
| 647 | 54 When converting a Lisp number to C, it is assumed to be of format 16 if |
| 55 it is an integer, and of format 32 if it is a cons of two integers. | |
| 56 | |
| 57 When converting a vector of numbers from Elisp to C, it is assumed to be | |
| 58 of format 16 if every element in the vector is an integer, and is assumed | |
| 59 to be of format 32 if any element is a cons of two integers. | |
| 60 | |
| 61 When converting an object to C, it may be of the form (SYMBOL . <data>) | |
| 62 where SYMBOL is what we should claim that the type is. Format and | |
| 63 representation are as above. | |
| 64 | |
| 65 NOTE: Under Mule, when someone shoves us a string without a type, we | |
| 3025 | 66 set the type to `COMPOUND_TEXT' and automatically convert to Compound |
| 647 | 67 Text. If the string has a type, we assume that the user wants the |
| 68 data sent as-is so we just do "binary" conversion. | |
| 69 */ | |
| 70 | |
| 71 | |
| 72 static Lisp_Object | |
| 73 selection_data_to_lisp_data (struct device *d, | |
| 2367 | 74 Rawbyte *data, |
| 665 | 75 Bytecount size, |
| 647 | 76 XE_ATOM_TYPE type, |
| 77 int format) | |
| 78 { | |
| 79 #ifdef PROCESSING_X_CODE | |
| 80 if (type == DEVICE_XATOM_NULL (d)) | |
| 81 return QNULL; | |
| 82 | |
| 83 /* Convert any 8-bit data to a string, for compactness. */ | |
| 84 else if (format == 8) | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
3833
diff
changeset
|
85 return make_extstring ((Extbyte *) data, size, |
| 647 | 86 type == DEVICE_XATOM_TEXT (d) || |
| 87 type == DEVICE_XATOM_COMPOUND_TEXT (d) | |
| 88 ? Qctext : Qbinary); | |
| 89 | |
| 90 /* Convert a single atom to a Lisp Symbol. | |
| 91 Convert a set of atoms to a vector of symbols. */ | |
| 92 else if (type == XA_ATOM) | |
| 93 #else | |
| 94 if (type == gdk_atom_intern ("NULL", 0)) | |
| 95 return QNULL; | |
| 96 | |
| 97 /* Convert any 8-bit data to a string, for compactness. */ | |
| 98 else if (format == 8) | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
3833
diff
changeset
|
99 return make_extstring ((Extbyte *) data, size, |
| 647 | 100 ((type == gdk_atom_intern ("TEXT", FALSE)) || |
| 101 (type == gdk_atom_intern ("COMPOUND_TEXT", FALSE))) | |
| 102 ? Qctext : Qbinary); | |
| 103 | |
| 104 /* Convert a single atom to a Lisp Symbol. | |
| 105 Convert a set of atoms to a vector of symbols. */ | |
| 106 else if (type == gdk_atom_intern ("ATOM", FALSE)) | |
| 107 #endif /* PROCESSING_X_CODE */ | |
| 108 { | |
| 109 if (size == sizeof (XE_ATOM_TYPE)) | |
| 110 return XE_ATOM_TO_SYMBOL (d, *((XE_ATOM_TYPE *) data)); | |
| 111 else | |
| 112 { | |
| 665 | 113 Elemcount i; |
| 114 Elemcount len = size / sizeof (XE_ATOM_TYPE); | |
| 647 | 115 Lisp_Object v = Fmake_vector (make_int (len), Qzero); |
| 116 for (i = 0; i < len; i++) | |
| 117 Faset (v, make_int (i), XE_ATOM_TO_SYMBOL (d, ((XE_ATOM_TYPE *) data) [i])); | |
| 118 return v; | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 /* Convert a single 16 or small 32 bit number to a Lisp Int. | |
| 123 If the number is > 16 bits, convert it to a cons of integers, | |
| 124 16 bits in each half. | |
| 125 */ | |
| 126 else if (format == 32 && size == sizeof (long)) | |
| 127 return word_to_lisp (((unsigned long *) data) [0]); | |
| 128 else if (format == 16 && size == sizeof (short)) | |
| 129 return make_int ((int) (((unsigned short *) data) [0])); | |
| 130 | |
| 131 /* Convert any other kind of data to a vector of numbers, represented | |
| 132 as above (as an integer, or a cons of two 16 bit integers). | |
| 133 | |
| 134 #### Perhaps we should return the actual type to lisp as well. | |
| 135 | |
| 136 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER) | |
| 137 ==> [4 4] | |
| 138 | |
| 139 and perhaps it should be | |
| 140 | |
| 141 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER) | |
| 142 ==> (SPAN . [4 4]) | |
| 143 | |
| 144 Right now the fact that the return type was SPAN is discarded before | |
| 145 lisp code gets to see it. | |
| 146 */ | |
| 147 else if (format == 16) | |
| 148 { | |
| 665 | 149 Elemcount i; |
| 647 | 150 Lisp_Object v = make_vector (size / 4, Qzero); |
| 151 for (i = 0; i < size / 4; i++) | |
| 152 { | |
| 153 int j = (int) ((unsigned short *) data) [i]; | |
| 154 Faset (v, make_int (i), make_int (j)); | |
| 155 } | |
| 156 return v; | |
| 157 } | |
| 158 else | |
| 159 { | |
| 665 | 160 Elemcount i; |
| 647 | 161 Lisp_Object v = make_vector (size / 4, Qzero); |
| 162 for (i = 0; i < size / 4; i++) | |
| 163 { | |
| 164 unsigned long j = ((unsigned long *) data) [i]; | |
| 165 Faset (v, make_int (i), word_to_lisp (j)); | |
| 166 } | |
| 167 return v; | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 | |
| 172 static void | |
| 173 lisp_data_to_selection_data (struct device *d, | |
| 174 Lisp_Object obj, | |
| 2367 | 175 Rawbyte **data_ret, |
| 647 | 176 XE_ATOM_TYPE *type_ret, |
| 665 | 177 Bytecount *size_ret, |
| 647 | 178 int *format_ret) |
| 179 { | |
| 180 Lisp_Object type = Qnil; | |
| 181 | |
| 182 if (CONSP (obj) && SYMBOLP (XCAR (obj))) | |
| 183 { | |
| 184 type = XCAR (obj); | |
| 185 obj = XCDR (obj); | |
| 186 if (CONSP (obj) && NILP (XCDR (obj))) | |
| 187 obj = XCAR (obj); | |
| 188 } | |
| 189 | |
| 190 if (EQ (obj, QNULL) || (EQ (type, QNULL))) | |
| 191 { /* This is not the same as declining */ | |
| 192 *format_ret = 32; | |
| 193 *size_ret = 0; | |
| 194 *data_ret = 0; | |
| 195 type = QNULL; | |
| 196 } | |
| 197 else if (STRINGP (obj)) | |
| 198 { | |
| 199 const Extbyte *extval; | |
| 665 | 200 Bytecount extvallen; |
| 647 | 201 |
| 202 TO_EXTERNAL_FORMAT (LISP_STRING, obj, | |
| 203 ALLOCA, (extval, extvallen), | |
| 204 (NILP (type) ? Qctext : Qbinary)); | |
| 205 *format_ret = 8; | |
| 206 *size_ret = extvallen; | |
| 2367 | 207 *data_ret = xnew_rawbytes (*size_ret); |
| 647 | 208 memcpy (*data_ret, extval, *size_ret); |
| 209 #ifdef MULE | |
| 210 if (NILP (type)) type = QCOMPOUND_TEXT; | |
| 211 #else | |
| 212 if (NILP (type)) type = QSTRING; | |
| 213 #endif | |
| 214 } | |
| 215 else if (CHARP (obj)) | |
| 216 { | |
| 867 | 217 Ibyte buf[MAX_ICHAR_LEN]; |
| 647 | 218 Bytecount len; |
| 219 const Extbyte *extval; | |
| 665 | 220 Bytecount extvallen; |
| 647 | 221 |
| 222 *format_ret = 8; | |
| 867 | 223 len = set_itext_ichar (buf, XCHAR (obj)); |
| 647 | 224 TO_EXTERNAL_FORMAT (DATA, (buf, len), |
| 225 ALLOCA, (extval, extvallen), | |
| 226 Qctext); | |
| 227 *size_ret = extvallen; | |
| 2367 | 228 *data_ret = xnew_rawbytes (*size_ret); |
| 647 | 229 memcpy (*data_ret, extval, *size_ret); |
| 230 #ifdef MULE | |
| 231 if (NILP (type)) type = QCOMPOUND_TEXT; | |
| 232 #else | |
| 233 if (NILP (type)) type = QSTRING; | |
| 234 #endif | |
| 235 } | |
| 236 else if (SYMBOLP (obj)) | |
| 237 { | |
| 238 *format_ret = 32; | |
| 239 *size_ret = 1; | |
| 2367 | 240 *data_ret = xnew_rawbytes (sizeof (XE_ATOM_TYPE) + 1); |
| 647 | 241 (*data_ret) [sizeof (XE_ATOM_TYPE)] = 0; |
| 242 (*(XE_ATOM_TYPE **) data_ret) [0] = XE_SYMBOL_TO_ATOM (d, obj, 0); | |
| 243 if (NILP (type)) type = QATOM; | |
| 244 } | |
| 245 else if (INTP (obj) && | |
| 246 XINT (obj) <= 0x7FFF && | |
| 247 XINT (obj) >= -0x8000) | |
| 248 { | |
| 249 *format_ret = 16; | |
| 250 *size_ret = 1; | |
| 2367 | 251 *data_ret = xnew_rawbytes (sizeof (short) + 1); |
| 647 | 252 (*data_ret) [sizeof (short)] = 0; |
| 253 (*(short **) data_ret) [0] = (short) XINT (obj); | |
| 254 if (NILP (type)) type = QINTEGER; | |
| 255 } | |
| 256 else if (INTP (obj) || CONSP (obj)) | |
| 257 { | |
| 258 *format_ret = 32; | |
| 259 *size_ret = 1; | |
| 2367 | 260 *data_ret = xnew_rawbytes (sizeof (long) + 1); |
| 647 | 261 (*data_ret) [sizeof (long)] = 0; |
| 262 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj); | |
| 263 if (NILP (type)) type = QINTEGER; | |
| 264 } | |
| 265 else if (VECTORP (obj)) | |
| 266 { | |
| 267 /* Lisp Vectors may represent a set of ATOMs; | |
| 268 a set of 16 or 32 bit INTEGERs; | |
| 269 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...] | |
| 270 */ | |
| 665 | 271 Elemcount i; |
| 647 | 272 |
| 273 if (SYMBOLP (XVECTOR_DATA (obj) [0])) | |
| 274 /* This vector is an ATOM set */ | |
| 275 { | |
| 276 if (NILP (type)) type = QATOM; | |
| 277 *size_ret = XVECTOR_LENGTH (obj); | |
| 278 *format_ret = 32; | |
| 2367 | 279 *data_ret = xnew_rawbytes ((*size_ret) * sizeof (XE_ATOM_TYPE)); |
| 647 | 280 for (i = 0; i < *size_ret; i++) |
| 281 if (SYMBOLP (XVECTOR_DATA (obj) [i])) | |
| 282 (*(XE_ATOM_TYPE **) data_ret) [i] = | |
| 283 XE_SYMBOL_TO_ATOM (d, XVECTOR_DATA (obj) [i], 0); | |
| 284 else | |
| 285 syntax_error | |
| 286 ("all elements of the vector must be of the same type", obj); | |
| 287 } | |
| 288 #if 0 /* #### MULTIPLE doesn't work yet */ | |
| 289 else if (VECTORP (XVECTOR_DATA (obj) [0])) | |
| 290 /* This vector is an ATOM_PAIR set */ | |
| 291 { | |
| 292 if (NILP (type)) type = QATOM_PAIR; | |
| 293 *size_ret = XVECTOR_LENGTH (obj); | |
| 294 *format_ret = 32; | |
| 2367 | 295 *data_ret = |
| 296 xnew_rawbytes ((*size_ret) * sizeof (XE_ATOM_TYPE) * 2); | |
| 647 | 297 for (i = 0; i < *size_ret; i++) |
| 298 if (VECTORP (XVECTOR_DATA (obj) [i])) | |
| 299 { | |
| 300 Lisp_Object pair = XVECTOR_DATA (obj) [i]; | |
| 301 if (XVECTOR_LENGTH (pair) != 2) | |
| 302 syntax_error | |
| 303 ("elements of the vector must be vectors of exactly two elements", pair); | |
| 304 | |
| 305 (*(XE_ATOM_TYPE **) data_ret) [i * 2] = | |
| 306 XE_SYMBOL_TO_ATOM (d, XVECTOR_DATA (pair) [0], 0); | |
| 307 (*(XE_ATOM_TYPE **) data_ret) [(i * 2) + 1] = | |
| 308 XE_SYMBOL_TO_ATOM (d, XVECTOR_DATA (pair) [1], 0); | |
| 309 } | |
| 310 else | |
| 311 syntax_error | |
| 312 ("all elements of the vector must be of the same type", obj); | |
| 313 } | |
| 314 #endif | |
| 315 else | |
| 316 /* This vector is an INTEGER set, or something like it */ | |
| 317 { | |
| 318 *size_ret = XVECTOR_LENGTH (obj); | |
| 319 if (NILP (type)) type = QINTEGER; | |
| 320 *format_ret = 16; | |
| 321 for (i = 0; i < *size_ret; i++) | |
| 322 if (CONSP (XVECTOR_DATA (obj) [i])) | |
| 323 *format_ret = 32; | |
| 324 else if (!INTP (XVECTOR_DATA (obj) [i])) | |
| 325 syntax_error | |
| 326 ("all elements of the vector must be integers or conses of integers", obj); | |
| 327 | |
| 2367 | 328 *data_ret = xnew_rawbytes (*size_ret * (*format_ret/8)); |
| 647 | 329 for (i = 0; i < *size_ret; i++) |
| 330 if (*format_ret == 32) | |
| 331 (*((unsigned long **) data_ret)) [i] = | |
| 332 lisp_to_word (XVECTOR_DATA (obj) [i]); | |
| 333 else | |
| 334 (*((unsigned short **) data_ret)) [i] = | |
| 335 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]); | |
| 336 } | |
| 337 } | |
| 338 else | |
| 339 invalid_argument ("unrecognized selection data", obj); | |
| 340 | |
| 341 *type_ret = XE_SYMBOL_TO_ATOM (d, type, 0); | |
| 342 } | |
| 343 |