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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.108 by sf-exg, Fri Oct 22 16:49:26 2010 UTC vs.
Revision 1.126 by sf-exg, Wed May 25 08:55:52 2011 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvttoolkit.C 2 * File: rxvttoolkit.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com> 6 * Copyright (c) 2003-2011 Marc Lehmann <schmorp@schmorp.de>
7 * Copyright (c) 2011 Emanuele Giaquinta <e.giaquinta@glauco.it>
7 * 8 *
8 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 11 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 12 * (at your option) any later version.
… …
33 34
34#if XFT 35#if XFT
35# include <X11/extensions/Xrender.h> 36# include <X11/extensions/Xrender.h>
36#endif 37#endif
37 38
38const char *const xa_names[] = 39static const char *const xa_names[] =
39{ 40{
40 "TEXT", 41 "TEXT",
41 "COMPOUND_TEXT", 42 "COMPOUND_TEXT",
42 "UTF8_STRING", 43 "UTF8_STRING",
43 "MULTIPLE", 44 "MULTIPLE",
… …
227{ 228{
228} 229}
229 230
230rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h) 231rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
231{ 232{
232 // it's actually faster to re-allocate every time. don't ask me
233 // why, but its likely no big deal there are no roundtrips
234 // (I think/hope).
235 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/) 233 if (!scratch_area || w > scratch_w || h > scratch_h)
236 { 234 {
237 if (scratch_area) 235 if (scratch_area)
238 { 236 {
239 XFreePixmap (dpy, scratch_area->drawable); 237 XFreePixmap (dpy, scratch_area->drawable);
240 delete scratch_area; 238 delete scratch_area;
… …
314 /* 312 /*
315 * get resources using the X library function 313 * get resources using the X library function
316 */ 314 */
317 char *displayResource, *xe; 315 char *displayResource, *xe;
318 XrmDatabase rdb1, database = 0; 316 XrmDatabase rdb1, database = 0;
317
318#if !XLIB_ILLEGAL_ACCESS
319 /* work around a bug in XrmSetDatabase where it frees the db, see ref_next */
320 database = XrmGetStringDatabase ("");
321#endif
319 322
320 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 323 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
321 // as opposed to "standard practise", we always read in ~/.Xdefaults 324 // as opposed to "standard practise", we always read in ~/.Xdefaults
322 325
323 // 6. System wide per application default file. 326 // 6. System wide per application default file.
… …
362 XA_STRING, &actual_type, &actual_format, 365 XA_STRING, &actual_type, &actual_format,
363 &nitems, &nremaining, 366 &nitems, &nremaining,
364 (unsigned char **)&val) == Success 367 (unsigned char **)&val) == Success
365 && actual_type == XA_STRING 368 && actual_type == XA_STRING
366 && actual_format == 8) 369 && actual_format == 8)
367 displayResource = val; 370 displayResource = val;
368 else 371 else
369 { 372 {
370 displayResource = 0; 373 displayResource = 0;
371 374
372 if (val) 375 if (val)
373 XFree(val); 376 XFree (val);
374 } 377 }
375 378
376#if XLIB_ILLEGAL_ACCESS 379#if XLIB_ILLEGAL_ACCESS
377 dpy->xdefaults = displayResource; 380 dpy->xdefaults = displayResource;
378#endif 381#endif
379 } 382 }
… …
446 return false; 449 return false;
447 450
448 screen = DefaultScreen (dpy); 451 screen = DefaultScreen (dpy);
449 root = DefaultRootWindow (dpy); 452 root = DefaultRootWindow (dpy);
450 453
451 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 454 assert (ARRAY_LENGTH(xa_names) == NUM_XA);
452 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); 455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
453 456
454 XrmSetDatabase (dpy, get_resources (false)); 457 XrmSetDatabase (dpy, get_resources (false));
455 458
456#ifdef POINTER_BLANK 459#ifdef POINTER_BLANK
… …
491rxvt_display::ref_next () 494rxvt_display::ref_next ()
492{ 495{
493 // TODO: somehow check whether the database files/resources changed 496 // TODO: somehow check whether the database files/resources changed
494 // before affording re-loading/parsing 497 // before affording re-loading/parsing
495 XrmDestroyDatabase (XrmGetDatabase (dpy)); 498 XrmDestroyDatabase (XrmGetDatabase (dpy));
499#if XLIB_ILLEGAL_ACCESS
500 /* work around a bug in XrmSetDatabase where it frees the db */
501 dpy->db = 0;
502#endif
496 XrmSetDatabase (dpy, get_resources (true)); 503 XrmSetDatabase (dpy, get_resources (true));
497} 504}
498 505
499rxvt_display::~rxvt_display () 506rxvt_display::~rxvt_display ()
500{ 507{
… …
507 x_ev.stop (); 514 x_ev.stop ();
508 flush_ev.stop (); 515 flush_ev.stop ();
509#ifdef USE_XIM 516#ifdef USE_XIM
510 xims.clear (); 517 xims.clear ();
511#endif 518#endif
519 XrmDestroyDatabase (XrmGetDatabase (dpy));
512 XCloseDisplay (dpy); 520 XCloseDisplay (dpy);
513} 521}
514 522
515#ifdef USE_XIM 523#ifdef USE_XIM
516void rxvt_display::im_change_cb () 524void rxvt_display::im_change_cb ()
… …
528 unsigned long nitems, bytes_after; 536 unsigned long nitems, bytes_after;
529 537
530 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 538 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
531 False, XA_ATOM, &actual_type, &actual_format, 539 False, XA_ATOM, &actual_type, &actual_format,
532 &nitems, &bytes_after, (unsigned char **)&atoms) 540 &nitems, &bytes_after, (unsigned char **)&atoms)
533 != Success ) 541 != Success)
534 return; 542 return;
535 543
536 if (actual_type == XA_ATOM && actual_format == 32) 544 if (actual_type == XA_ATOM && actual_format == 32)
537 for (int i = 0; i < nitems; i++) 545 for (int i = 0; i < nitems; i++)
538 if (XGetSelectionOwner (dpy, atoms[i])) 546 if (XGetSelectionOwner (dpy, atoms[i]))
539 { 547 {
540 im_change_cb (); 548 im_change_cb ();
541 break; 549 break;
… …
695 c.color.red = color.r; 703 c.color.red = color.r;
696 c.color.green = color.g; 704 c.color.green = color.g;
697 c.color.blue = color.b; 705 c.color.blue = color.b;
698 c.color.alpha = alpha; 706 c.color.alpha = alpha;
699 707
708 // Xft wants premultiplied alpha, but abuses the alpha channel
709 // as blend factor, and doesn't allow us to set the alpha channel
710 c.color.red = c.color.red * alpha / 0xffff;
711 c.color.green = c.color.green * alpha / 0xffff;
712 c.color.blue = c.color.blue * alpha / 0xffff;
713
700 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red ) 714 c.pixel = insert_component (c.color.red , format->direct.redMask , format->direct.red )
701 | insert_component (color.g, format->direct.greenMask, format->direct.green) 715 | insert_component (c.color.green, format->direct.greenMask, format->direct.green)
702 | insert_component (color.b, format->direct.blueMask , format->direct.blue ) 716 | insert_component (c.color.blue , format->direct.blueMask , format->direct.blue )
703 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha); 717 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
704 718
705 return true; 719 return true;
706 } 720 }
707 else 721 else
708 { 722 {
… …
884 lerp (c.a, to.a, percent) 898 lerp (c.a, to.a, percent)
885 ) 899 )
886 ); 900 );
887} 901}
888 902
903rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, rxvt_term *term)
904: display (disp), request_time (tm), request_win (win), request_prop (prop), term (term)
905{
906 assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard);
907
908 timer_ev.set<rxvt_selection, &rxvt_selection::timer_cb> (this);
909 timer_ev.repeat = 10.;
910 x_ev.set<rxvt_selection, &rxvt_selection::x_cb> (this);
911
912 incr_buf = 0;
913 incr_buf_size = incr_buf_fill = 0;
914 selection_wait = Sel_normal;
915 selection_type = selnum;
916}
917
918void
919rxvt_selection::stop ()
920{
921 free (incr_buf);
922 incr_buf = 0;
923 timer_ev.stop ();
924 x_ev.stop (display);
925}
926
927rxvt_selection::~rxvt_selection ()
928{
929 stop ();
930}
931
932void
933rxvt_selection::run ()
934{
935 int selnum = selection_type;
936
937#if ENABLE_FRILLS
938 if (selnum == Sel_Primary && display->selection_owner)
939 {
940 /* internal selection */
941 char *str = rxvt_wcstombs (display->selection_owner->selection.text, display->selection_owner->selection.len);
942 finish (str, strlen (str));
943 free (str);
944 return;
945 }
946#endif
947
948#if X_HAVE_UTF8_STRING
949 selection_type = Sel_UTF8String;
950 if (request (display->xa[XA_UTF8_STRING], selnum))
951 return;
952#else
953 selection_type = Sel_CompoundText;
954 if (request (display->xa[XA_COMPOUND_TEXT], selnum))
955 return;
956#endif
957
958 // fallback to CUT_BUFFER0 if the requested property has no owner
959 handle_selection (display->root, XA_CUT_BUFFER0, false);
960}
961
962void
963rxvt_selection::finish (char *data, unsigned int len)
964{
965 if (term)
966 {
967 if (data)
968 term->paste (data, len);
969
970 term->selection_req = 0;
971 delete this;
972 }
973#if ENABLE_PERL
974 else
975 {
976 stop (); // we do not really trust perl callbacks
977 rxvt_perl.selection_finish (this, data, len);
978 }
979#endif
980}
981
982bool
983rxvt_selection::request (Atom target, int selnum)
984{
985 Atom sel;
986
987 selection_type |= selnum;
988
989 if (selnum == Sel_Primary)
990 sel = XA_PRIMARY;
991 else if (selnum == Sel_Secondary)
992 sel = XA_SECONDARY;
993 else
994 sel = display->xa[XA_CLIPBOARD];
995
996 if (XGetSelectionOwner (display->dpy, sel) != None)
997 {
998 XConvertSelection (display->dpy, sel, target, request_prop,
999 request_win, request_time);
1000 x_ev.start (display, request_win);
1001 timer_ev.again ();
1002 return true;
1003 }
1004
1005 return false;
1006}
1007
1008void
1009rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop)
1010{
1011 Display *dpy = display->dpy;
1012 char *data = 0;
1013 unsigned int data_len = 0;
1014 unsigned long bytes_after;
1015 XTextProperty ct;
1016
1017 // check for failed XConvertSelection
1018 if (prop == None)
1019 {
1020 bool error = true;
1021 int selnum = selection_type & Sel_whereMask;
1022
1023 if (selection_type & Sel_CompoundText)
1024 {
1025 selection_type = 0;
1026 error = !request (XA_STRING, selnum);
1027 }
1028
1029 if (selection_type & Sel_UTF8String)
1030 {
1031 selection_type = Sel_CompoundText;
1032 error = !request (display->xa[XA_COMPOUND_TEXT], selnum);
1033 }
1034
1035 if (error)
1036 {
1037 ct.value = 0;
1038 goto bailout;
1039 }
1040
1041 return;
1042 }
1043
1044 // length == (2^31 - 1) / 4, as gdk
1045 if (XGetWindowProperty (dpy, win, prop,
1046 0, 0x1fffffff,
1047 delete_prop, AnyPropertyType,
1048 &ct.encoding, &ct.format,
1049 &ct.nitems, &bytes_after,
1050 &ct.value) != Success)
1051 {
1052 ct.value = 0;
1053 goto bailout;
1054 }
1055
1056 if (ct.encoding == None)
1057 goto bailout;
1058
1059 if (ct.value == 0)
1060 goto bailout;
1061
1062 if (ct.encoding == display->xa[XA_INCR])
1063 {
1064 // INCR selection, start handshake
1065 if (!delete_prop)
1066 XDeleteProperty (dpy, win, prop);
1067
1068 selection_wait = Sel_incr;
1069 timer_ev.again ();
1070
1071 goto bailout;
1072 }
1073
1074 if (ct.nitems == 0)
1075 {
1076 if (selection_wait == Sel_incr)
1077 {
1078 XFree (ct.value);
1079
1080 // finally complete, now paste the whole thing
1081 selection_wait = Sel_normal;
1082 ct.value = (unsigned char *)incr_buf;
1083 ct.nitems = incr_buf_fill;
1084 incr_buf = 0;
1085 timer_ev.stop ();
1086 }
1087 else
1088 {
1089 // avoid recursion
1090 if (win != display->root || prop != XA_CUT_BUFFER0)
1091 {
1092 XFree (ct.value);
1093
1094 // fallback to CUT_BUFFER0 if the requested property
1095 // has an owner but is empty
1096 handle_selection (display->root, XA_CUT_BUFFER0, False);
1097 return;
1098 }
1099
1100 goto bailout;
1101 }
1102 }
1103 else if (selection_wait == Sel_incr)
1104 {
1105 timer_ev.again ();
1106
1107 while (incr_buf_fill + ct.nitems > incr_buf_size)
1108 {
1109 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
1110 incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size);
1111 }
1112
1113 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
1114 incr_buf_fill += ct.nitems;
1115
1116 goto bailout;
1117 }
1118
1119 char **cl;
1120 int cr;
1121
1122 // we honour the first item only
1123
1124#if !ENABLE_MINIMAL
1125 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
1126 // so recode it manually
1127 if (ct.encoding == display->xa[XA_UTF8_STRING])
1128 {
1129 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
1130 data = rxvt_wcstombs (w);
1131 free (w);
1132 }
1133 else
1134#endif
1135 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
1136 && cl)
1137 {
1138 data = strdup (cl[0]);
1139 XFreeStringList (cl);
1140 }
1141 else
1142 {
1143 // paste raw
1144 data = strdup ((const char *)ct.value);
1145 }
1146
1147 data_len = strlen (data);
1148
1149bailout:
1150 XFree (ct.value);
1151
1152 if (selection_wait == Sel_normal)
1153 {
1154 finish (data, data_len);
1155 free (data);
1156 }
1157}
1158
1159void
1160rxvt_selection::timer_cb (ev::timer &w, int revents)
1161{
1162 if (selection_wait == Sel_incr)
1163 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
1164
1165 finish ();
1166}
1167
1168void
1169rxvt_selection::x_cb (XEvent &xev)
1170{
1171 switch (xev.type)
1172 {
1173 case PropertyNotify:
1174 if (selection_wait == Sel_incr
1175 && xev.xproperty.atom == request_prop
1176 && xev.xproperty.state == PropertyNewValue)
1177 handle_selection (xev.xproperty.window, xev.xproperty.atom, true);
1178 break;
1179
1180 case SelectionNotify:
1181 if (selection_wait == Sel_normal
1182 && xev.xselection.time == request_time)
1183 {
1184 timer_ev.stop ();
1185 handle_selection (xev.xselection.requestor, xev.xselection.property, true);
1186 }
1187 break;
1188 }
1189}

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