Mercurial > hg > xemacs-beta
view src/scrollbar.h @ 4549:68d1ca56cffa
First part of interactive checks that coding systems encode regions.
2008-01-21 Aidan Kehoe <kehoea@parhasard.net>
* coding.el (decode-coding-string):
(encode-coding-string): Accept GNU's NOCOPY argument for
these. Todo; write compiler macros to use it.
(query-coding-warning-face): New face, to show unencodable
characters.
(default-query-coding-region-safe-charset-skip-chars-map):
New variable, a cache used by #'default-query-coding-region.
(default-query-coding-region): Default implementation of
#'query-coding-region, using the safe-charsets and safe-chars
coding systemproperties.
(query-coding-region): New function; can a given coding system
encode a given region?
(query-coding-string): New function; can a given coding system
encode a given string?
(unencodable-char-position): Function API taken from GNU; return
the first unencodable position given a string and coding system.
(encode-coding-char): Function API taken from GNU; return CHAR
encoded using CODING-SYSTEM, or nil if CODING-SYSTEM would trash
CHAR.
((unless (featurep 'mule)): Override the default
query-coding-region implementation on non-Mule.
* mule/mule-coding.el (make-8-bit-generate-helper): Eliminate a
duplicate comment.
(make-8-bit-choose-category): Simplify implementation.
(8-bit-fixed-query-coding-region): Implementation of
#'query-coding-region for coding systems created with
#'make-8-bit-coding-system.
(make-8-bit-coding-system): Initialise the #'query-coding-region
implementation for these character sets.
(make-8-bit-coding-system): Ditto for the compiler macro version
of this function.
* unicode.el (unicode-query-coding-skip-chars-arg): New variable,
used by unicode-query-coding-region, initialised in
mule/general-late.el.
(unicode-query-coding-region): New function, the
#'query-coding-region implementation for Unicode coding systems.
Initialise the query-coding-function property for the Unicode
coding systems to #'unicode-query-coding-region.
* mule/mule-charset.el (charset-skip-chars-string): New
function. Return a #'skip-chars-forward argument that skips all
characters in CHARSET.
(map-charset-chars): Function synced from GNU, modified to work
with XEmacs. Map FUNC across the int value charset ranges of
CHARSET.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 21 Jan 2008 22:51:21 +0100 |
| parents | 1e7cc382eb16 |
| children | e0db3c197671 |
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/* Define 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_h_ #define INCLUDED_scrollbar_h_ #ifdef HAVE_SCROLLBARS struct scrollbar_instance { struct LCRECORD_HEADER header; /* Used by the frame caches. */ struct scrollbar_instance *next; /* Pointer back to the mirror structure attached to. */ struct window_mirror *mirror; /* This flag indicates if the scrollbar is currently in use. */ char scrollbar_is_active; /* This flag indicates if a data parameter has changed. */ char scrollbar_instance_changed; /* A structure of auxiliary data specific to the device type. struct x_scrollbar_data is used for X window frames; defined in scrollbar-x.h */ void *scrollbar_data; }; DECLARE_LRECORD (scrollbar_instance, struct scrollbar_instance); #define XSCROLLBAR_INSTANCE(x) XRECORD (x, scrollbar_instance, struct scrollbar_instance) #define wrap_scrollbar_instance(p) wrap_record (p, scrollbar_instance) #define SCROLLBAR_INSTANCEP(x) RECORDP (x, scrollbar_instance) #define CHECK_SCROLLBAR_INSTANCE(x) CHECK_RECORD (x, scrollbar_instance) #define CONCHECK_SCROLLBAR_INSTANCE(x) CONCHECK_RECORD (x, scrollbar_instance) #define SCROLLBAR_INSTANCE_FRAME(inst) (inst->mirror->frame) void init_frame_scrollbars (struct frame *f); void init_device_scrollbars (struct device *d); void init_global_scrollbars (struct device *d); void free_frame_scrollbars (struct frame *f); void release_window_mirror_scrollbars (struct window_mirror *mir); void update_window_scrollbars (struct window *w, struct window_mirror *mirror, int active, int horiz_only); #ifdef MEMORY_USAGE_STATS int compute_scrollbar_instance_usage (struct device *d, struct scrollbar_instance *inst, struct overhead_stats *ovstats); #endif extern Lisp_Object Vscrollbar_width, Vscrollbar_height; extern Lisp_Object Qscrollbar_line_up; extern Lisp_Object Qscrollbar_line_down; extern Lisp_Object Qscrollbar_page_up; extern Lisp_Object Qscrollbar_page_down; extern Lisp_Object Qscrollbar_to_top; extern Lisp_Object Qscrollbar_to_bottom; extern Lisp_Object Qscrollbar_vertical_drag; extern Lisp_Object Qscrollbar_char_left; extern Lisp_Object Qscrollbar_char_right; extern Lisp_Object Qscrollbar_page_left; extern Lisp_Object Qscrollbar_page_right; extern Lisp_Object Qscrollbar_to_left; extern Lisp_Object Qscrollbar_to_right; extern Lisp_Object Qscrollbar_horizontal_drag; #endif /* HAVE_SCROLLBARS */ #endif /* INCLUDED_scrollbar_h_ */