Mercurial > hg > xemacs-beta
view src/scrollbar-x.h @ 5253:b6a398dbb403
Fewer algorithmic complexity surprises, nicer errors, mapcarX(), maplist()
src/ChangeLog addition:
2010-09-01 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (list_merge, list_array_merge_into_list)
(list_array_merge_into_array):
Avoid algorithmic complexity surprises when checking for
circularity in these functions.
(Freduce): Fix some formatting, in passing.
(mapcarX): Drop the SOME_OR_EVERY argument to this function;
instead, take CALLER, a symbol reflecting the Lisp-visible
function that called mapcarX(). Use CALLER with
mapping_interaction_error() when sequences are modified
illegally. Don't cons with #'some, #'every, not even a little.
(Fmapconcat, FmapcarX, Fmapvector, Fmapcan, Fmapc, Fmap)
(Fmap_into, Fsome, Fevery): Call mapcarX() with its new
arguments.
(Fmapcan): Don't unnecessarily complicate the nconc call.
(maplist): Take CALLER, a symbol reflecting the Lisp-visible
function that called maplist(), rather than having separate
arguments to indicate mapl vs. mapcon.
Avoid algorithmic complexity surprises when checking for
circularity. In #'mapcon, check a given stretch of
result for well-formedness once, which was not previously the
case, despite what the comments said.
(Fmaplist, Fmapl, Fmapcon):
Call maplist() with its new arguments.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 01 Sep 2010 12:51:32 +0100 |
| parents | fdefd0186b75 |
| children | 308d34e9f07d |
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/* Define X-specific scrollbar instance. Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. This file is part of XEmacs. XEmacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ #ifndef INCLUDED_scrollbar_x_h_ #define INCLUDED_scrollbar_x_h_ #if defined (HAVE_X_WINDOWS) && defined (HAVE_SCROLLBARS) #include "scrollbar.h" struct x_scrollbar_data { /* Unique scrollbar identifier and name. */ unsigned int id; char *name; /* Is set if we have already set the backing_store attribute correctly */ char backing_store_initialized; /* Positioning and sizing information for scrollbar and slider. */ scrollbar_values pos_data; /* Pointer to the scrollbar widget this structure describes. */ Widget widget; #if defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_LUCID) || \ defined (LWLIB_SCROLLBARS_ATHENA3D) /* Recorded starting position for Motif-like scrollbar drags. */ int vdrag_orig_value; Charbpos vdrag_orig_window_start; #endif }; #define SCROLLBAR_X_DATA(i) ((struct x_scrollbar_data *) ((i)->scrollbar_data)) #define SCROLLBAR_X_ID(i) (SCROLLBAR_X_DATA (i)->id) #define SCROLLBAR_X_NAME(i) (SCROLLBAR_X_DATA (i)->name) #define SCROLLBAR_X_BACKING_STORE_INITIALIZED(i) \ (SCROLLBAR_X_DATA (i)->backing_store_initialized) #define SCROLLBAR_X_POS_DATA(i) (SCROLLBAR_X_DATA (i)->pos_data) #define SCROLLBAR_X_WIDGET(i) (SCROLLBAR_X_DATA (i)->widget) #if defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_LUCID) || \ defined (LWLIB_SCROLLBARS_ATHENA3D) #define SCROLLBAR_X_VDRAG_ORIG_VALUE(i) \ (SCROLLBAR_X_DATA (i)->vdrag_orig_value) #define SCROLLBAR_X_VDRAG_ORIG_WINDOW_START(i) \ (SCROLLBAR_X_DATA (i)->vdrag_orig_window_start) #endif void x_update_frame_scrollbars (struct frame *f); void x_set_scrollbar_pointer (struct frame *f, Lisp_Object cursor); #endif /* HAVE_X_WINDOWS and HAVE_SCROLLBARS */ #endif /* INCLUDED_scrollbar_x_h_ */