Mercurial > hg > xemacs-beta
view src/scrollbar-gtk.h @ 4407:4ee73bbe4f8e
Always use boyer_moore in ASCII or Latin-1 buffers with ASCII search strings.
2007-12-26 Aidan Kehoe <kehoea@parhasard.net>
* casetab.c:
Extend and correct some case table documentation.
* search.c (search_buffer):
Correct a bug where only the first entry for a character in the
case equivalence table was examined in determining if the
Boyer-Moore search algorithm is appropriate.
If there are case mappings outside of the charset and row of the
characters specified in the search string, those case mappings can
be safely ignored (and Boyer-Moore search can be used) if we know
from the buffer statistics that the corresponding characters cannot
occur.
* search.c (boyer_moore):
Assert that we haven't been passed a string with varying
characters sets or rows within character sets. That's what
simple_search is for.
In the very rare event that a character in the search string has a
canonical case mapping that is not in the same character set and
row, don't try to search for the canonical character, search for
some other character that is in the the desired character set and
row. Assert that the case table isn't corrupt.
Do not search for any character case mappings that cannot possibly
occur in the buffer, given the buffer metadata about its
contents.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 26 Dec 2007 17:30:16 +0100 |
| parents | fdefd0186b75 |
| children | 308d34e9f07d |
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/* Define Gtk-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 _XEMACS_SCROLLBAR_GTK_H_ #define _XEMACS_SCROLLBAR_GTK_H_ #if defined (HAVE_GTK) && defined (HAVE_SCROLLBARS) #include "scrollbar.h" typedef struct _scrollbar_values { int line_increment; int page_increment; int minimum; int maximum; int slider_size; int slider_position; int scrollbar_width, scrollbar_height; int scrollbar_x, scrollbar_y; } scrollbar_values; struct gtk_scrollbar_data { /* Unique scrollbar identifier and name. */ unsigned int id; /* 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. */ GtkWidget *widget; gfloat last_value; /* Recorded starting position for Motif-like scrollbar drags. */ int vdrag_orig_value; Charbpos vdrag_orig_window_start; }; #define SCROLLBAR_GTK_DATA(i) ((struct gtk_scrollbar_data *) ((i)->scrollbar_data)) #define SCROLLBAR_GTK_ID(i) (SCROLLBAR_GTK_DATA (i)->id) #define SCROLLBAR_GTK_BACKING_STORE_INITIALIZED(i) \ (SCROLLBAR_GTK_DATA (i)->backing_store_initialized) #define SCROLLBAR_GTK_POS_DATA(i) (SCROLLBAR_GTK_DATA (i)->pos_data) #define SCROLLBAR_GTK_WIDGET(i) (SCROLLBAR_GTK_DATA (i)->widget) #define SCROLLBAR_GTK_LAST_VALUE(i) SCROLLBAR_GTK_DATA (i)->last_value #define SCROLLBAR_GTK_VDRAG_ORIG_VALUE(i) \ (SCROLLBAR_GTK_DATA (i)->vdrag_orig_value) #define SCROLLBAR_GTK_VDRAG_ORIG_WINDOW_START(i) \ (SCROLLBAR_GTK_DATA (i)->vdrag_orig_window_start) void gtk_update_frame_scrollbars (struct frame *f); void gtk_set_scrollbar_pointer (struct frame *f, Lisp_Object cursor); #endif /* HAVE_GDK and HAVE_SCROLLBARS */ #endif /* _XEMACS_SCROLLBAR_GTK_H_ */