[xemacs-hg @ 2002-05-28 08:44:22 by ben] merge my stderr-proc ws make-docfile.c: Fix places where we forget to check for EOF. code-init.el: Don't use CRLF conversion by default on process output. CMD.EXE and friends work both ways but Cygwin programs don't like the CRs. code-process.el, multicast.el, process.el: Removed. Improvements to call-process-internal: -- allows a buffer to be specified for input and stderr output -- use it on all systems -- implement C-g as documented -- clean up and comment call-process-region uses new call-process facilities; no temp file. remove duplicate funs in process.el. comment exactly how coding systems work and fix various problems. open-multicast-group now does similar coding-system frobbing to open-network-stream. dumped-lisp.el, faces.el, msw-faces.el: Fix some hidden errors due to code not being defined at the right time. xemacs.mak: Add -DSTRICT. ================================================================ ALLOW SEPARATION OF STDOUT AND STDERR IN PROCESSES ================================================================ Standard output and standard error can be processed separately in a process. Each can have its own buffer, its own mark in that buffer, and its filter function. You can specify a separate buffer for stderr in `start-process' to get things started, or use the new primitives: set-process-stderr-buffer process-stderr-buffer process-stderr-mark set-process-stderr-filter process-stderr-filter Also, process-send-region takes a 4th optional arg, a buffer. Currently always uses a pipe() under Unix to read the error output. (#### Would a PTY be better?) sysdep.h, sysproc.h, unexfreebsd.c, unexsunos4.c, nt.c, emacs.c, callproc.c, symsinit.h, sysdep.c, Makefile.in.in, process-unix.c: Delete callproc.c. Move child_setup() to process-unix.c. wait_for_termination() now only needed on a few really old systems. console-msw.h, event-Xt.c, event-msw.c, event-stream.c, event-tty.c, event-unixoid.c, events.h, process-nt.c, process-unix.c, process.c, process.h, procimpl.h: Rewrite the process methods to handle a separate channel for error input. Create Lstreams for reading in the error channel. Many process methods need change. In general the changes are fairly clear as they involve duplicating what's used for reading the normal stdout and changing for stderr -- although tedious, as such changes are required throughout the entire process code. Rewrote the code that reads process output to do two loops, one for stdout and one for stderr. gpmevent.c, tooltalk.c: set_process_filter takes an argument for stderr. ================================================================ NEW ERROR-TRAPPING MECHANISM ================================================================ Totally rewrite error trapping code to be unified and support more features. Basic function is call_trapping_problems(), which lets you specify, by means of flags, what sorts of problems you want trapped. these can include -- quit -- errors -- throws past the function -- creation of "display objects" (e.g. buffers) -- deletion of already-existing "display objects" (e.g. buffers) -- modification of already-existing buffers -- entering the debugger -- gc -- errors->warnings (ala suspended errors) etc. All other error funs rewritten in terms of this one. Various older mechanisms removed or rewritten. window.c, insdel.c, console.c, buffer.c, device.c, frame.c: When creating a display object, added call to note_object_created(), for use with trapping_problems mechanism. When deleting, call check_allowed_operation() and note_object deleted(). The trapping-problems code records the objects created since the call-trapping-problems began. Those objects can be deleted, but none others (i.e. previously existing ones). bytecode.c, cmdloop.c: internal_catch takes another arg. eval.c: Add long comments describing the "five lists" used to maintain state (backtrace, gcpro, specbind, etc.) in the Lisp engine. backtrace.h, eval.c: Implement trapping-problems mechanism, eliminate old mechanisms or redo in terms of new one. frame.c, gutter.c: Flush out the concept of "critical display section", defined by the in_display() var. Use an internal_bind() to get it reset, rather than just doing it at end, because there may be a non-local exit. event-msw.c, event-stream.c, console-msw.h, device.c, dialog-msw.c, frame.c, frame.h, intl.c, toolbar.c, menubar-msw.c, redisplay.c, alloc.c, menubar-x.c: Make use of new trapping-errors stuff and rewrite code based on old mechanisms. glyphs-widget.c, redisplay.h: Protect calling Lisp in redisplay. insdel.c: Protect hooks against deleting existing buffers. frame-msw.c: Use EQ, not EQUAL in hash tables whose keys are just numbers. Otherwise we run into stickiness in redisplay because internal_equal() can QUIT. ================================================================ SIGNAL, C-G CHANGES ================================================================ Here we change the way that C-g interacts with event reading. The idea is that a C-g occurring while we're reading a user event should be read as C-g, but elsewhere should be a QUIT. The former code did all sorts of bizarreness -- requiring that no QUIT occurs anywhere in event-reading code (impossible to enforce given the stuff called or Lisp code invoked), and having some weird system involving enqueue/dequeue of a C-g and interaction with Vquit_flag -- and it didn't work. Now, we simply enclose all code where we want C-g read as an event with {begin/end}_dont_check_for_quit(). This completely turns off the mechanism that checks (and may remove or alter) C-g in the read-ahead queues, so we just get the C-g normal. Signal.c documents this very carefully. cmdloop.c: Correct use of dont_check_for_quit to new scheme, remove old out-of-date comments. event-stream.c: Fix C-g handling to actually work. device-x.c: Disable quit checking when err out. signal.c: Cleanup. Add large descriptive comment. process-unix.c, process-nt.c, sysdep.c: Use QUIT instead of REALLY_QUIT. It's not necessary to use REALLY_QUIT and just confuses the issue. lisp.h: Comment quit handlers. ================================================================ CONS CHANGES ================================================================ free_cons() now takes a Lisp_Object not the result of XCONS(). car and cdr have been renamed so that they don't get used directly; go through XCAR(), XCDR() instead. alloc.c, dired.c, editfns.c, emodules.c, fns.c, glyphs-msw.c, glyphs-x.c, glyphs.c, keymap.c, minibuf.c, search.c, eval.c, lread.c, lisp.h: Correct free_cons calling convention: now takes Lisp_Object, not Lisp_Cons chartab.c: Eliminate direct use of ->car, ->cdr, should be black box. callint.c: Rewrote using EXTERNAL_LIST_LOOP to avoid use of Lisp_Cons. ================================================================ USE INTERNAL-BIND-* ================================================================ eval.c: Cleanups of these funs. alloc.c, fileio.c, undo.c, specifier.c, text.c, profile.c, lread.c, redisplay.c, menubar-x.c, macros.c: Rewrote to use internal_bind_int() and internal_bind_lisp_object() in place of whatever varied and cumbersome mechanisms were formerly there. ================================================================ SPECBIND SANITY ================================================================ backtrace.h: - Improved comments backtrace.h, bytecode.c, eval.c: Add new mechanism check_specbind_stack_sanity() for sanity checking code each time the catchlist or specbind stack change. Removed older prototype of same mechanism. ================================================================ MISC ================================================================ lisp.h, insdel.c, window.c, device.c, console.c, buffer.c: Fleshed out authorship. device-msw.c: Correct bad Unicode-ization. print.c: Be more careful when not initialized or in fatal error handling. search.c: Eliminate running_asynch_code, an FSF holdover. alloc.c: Added comments about gc-cons-threshold. dialog-x.c: Use begin_gc_forbidden() around code to build up a widget value tree, like in menubar-x.c. gui.c: Use Qunbound not Qnil as the default for gethash. lisp-disunion.h, lisp-union.h: Added warnings on use of VOID_TO_LISP(). lisp.h: Use ERROR_CHECK_STRUCTURES to turn on ERROR_CHECK_TRAPPING_PROBLEMS and ERROR_CHECK_TYPECHECK lisp.h: Add assert_with_message. lisp.h: Add macros for gcproing entire arrays. (You could do this before but it required manual twiddling the gcpro structure.) lisp.h: Add prototypes for new functions defined elsewhere.

/* Tabs Widget for XEmacs.
    Copyright (C) 1999 Edward A. Falk
 
 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.  */
 
/*
 * This widget manages one or more child widgets, exactly one of which is
 * visible.  Above the child widgets is a graphic that looks like index
 * tabs from file folders.  Each tab corresponds to one of the child widgets.
 * By clicking on a tab, the user can bring the corresponding widget to
 * the top of the stack.
 */


#ifndef _Tabs_h
#define _Tabs_h

#include <X11/Constraint.h>


/***********************************************************************
 *
 * Tabs Widget (subclass of CompositeClass)
 *
 ***********************************************************************/

/* Parameters:

 Name		     Class		RepType		Default Value
 ----		     -----		-------		-------------
 font		     Font		XFontStruct*	XtDefaultFont
 internalWidth	     Width		Dimension	4	*1
 internalHeight	     Height		Dimension	2	*1
 topWidget	     TopWidget		Widget			*2
 callback	     Callback		XtCallbackList	NULL	*3
 popdownCallback     Callback		XtCallbackList	NULL	*4
 selectInsensitive   SelectInsensitive	Boolean		True	*5
 beNiceToColormap    BeNiceToColormap	Boolean		False	*6
 topShadowContrast   TopShadowContrast	int		20
 bottomShadowContrast BottomShadowContrast int		40
 insensitiveContrast InsensitiveContrast int		33	*7

 background	     Background		Pixel		XtDefaultBackground
 border		     BorderColor	Pixel		XtDefaultForeground
 borderWidth	     BorderWidth	Dimension	1
 destroyCallback     Callback		Pointer		NULL
 hSpace 	     HSpace		Dimension	4
 height		     Height		Dimension	0
 mappedWhenManaged   MappedWhenManaged	Boolean		True
 orientation	     Orientation	XtOrientation	vertical
 vSpace 	     VSpace		Dimension	4
 width		     Width		Dimension	0
 x		     Position		Position	0
 y		     Position		Position	0

 Notes:

 1 internalWidth, internalHeight specify the margins around the text
   in the tabs.
 2 topWidget identifies the widget which is currently visible.
 3 callbacks are called whenever the user selects a tab.  Call_data is
   the new top widget.
 4 popdownCallbacks are called whenever the user selects a tab.  Call_data is
   the old (no longer visible) top widget.  Note that popdownCallbacks
   are called before callbacks.
 5 SelectInsensitive determines whether or not insensitive children may
   be selected anyway.
 6 BeNiceToColormap causes the Tabs widget to use fewer colors.
 7 InsensitiveContrast sets the contrast used for labels of insensitive widgets.

*/

/* Constraint parameters:
 Name		     Class		RepType		Default Value
 ----		     -----		-------		-------------
 tabLabel	     Label		String		widget name
 tabLeftBitmap	     LeftBitmap		Pixmap		None
 tabForeground	     Foreground		Pixel		XtDefaultForeground
 resizable	     Resizable		Boolean		False
*/

/* New fields */

#ifndef	XtNtabLabel
#define	XtNtabLabel		"tabLabel"
#define	XtNtabForeground	"tabForeground"
#endif

#ifndef	XtNtabLeftBitmap
#define	XtNtabLeftBitmap	"tabLeftBitmap"
#endif

#ifndef	XtCLeftBitmap
#define	XtCLeftBitmap	"LeftBitmap"
#endif

#ifndef	XtCResizable
#define	XtCResizable	"Resizable"
#endif

#ifndef	XtNselectInsensitive
#define	XtNselectInsensitive	"selectInsensitive"
#define	XtCSelectInsensitive	"SelectInsensitive"
#endif

#ifndef	XtNnlabels
#define	XtNnlabels	"nlabels"
#define	XtCNLabels	"NLabels"
#endif
#ifndef	XtNlabels
#define	XtNlabels	"labels"
#define	XtCLabels	"Labels"
#endif

#ifndef	XtNtopWidget
#define	XtNtopWidget	"topWidget"
#define	XtCTopWidget	"TopWidget"
#endif

#ifndef	XtNhSpace
#define	XtNhSpace	"hSpace"
#define	XtCHSpace	"HSpace"
#define	XtNvSpace	"vSpace"
#define	XtCVSpace	"VSpace"
#endif

#ifndef	XtNresizable
#define	XtNresizable	"resizable"
#endif

#ifndef	XtNinsensitiveContrast
#define	XtNinsensitiveContrast	"insensitiveContrast"
#define	XtCInsensitiveContrast	"InsensitiveContrast"
#endif

#ifndef	XtNshadowWidth
#define XtNshadowWidth "shadowWidth"
#define XtCShadowWidth "ShadowWidth"
#define XtNtopShadowPixel "topShadowPixel"
#define XtCTopShadowPixel "TopShadowPixel"
#define XtNbottomShadowPixel "bottomShadowPixel"
#define XtCBottomShadowPixel "BottomShadowPixel"
#define XtNtopShadowContrast "topShadowContrast"
#define XtCTopShadowContrast "TopShadowContrast"
#define XtNbottomShadowContrast "bottomShadowContrast"
#define XtCBottomShadowContrast "BottomShadowContrast"
#endif

#ifndef	XtNtopShadowPixmap
#define	XtNtopShadowPixmap	"topShadowPixmap"
#define	XtCTopShadowPixmap	"TopShadowPixmap"
#define	XtNbottomShadowPixmap	"bottomShadowPixmap"
#define	XtCBottomShadowPixmap	"BottomShadowPixmap"
#endif

#ifndef	XtNbeNiceToColormap
#define XtNbeNiceToColormap "beNiceToColormap"
#define XtCBeNiceToColormap "BeNiceToColormap"
#define XtNbeNiceToColourmap "beNiceToColormap"
#define XtCBeNiceToColourmap "BeNiceToColormap"
#endif

/* Class record constants */

extern WidgetClass tabsWidgetClass;

typedef struct _TabsClassRec *TabsWidgetClass;
typedef struct _TabsRec      *TabsWidget;

_XFUNCPROTOBEGIN

extern	void
XawTabsSetTop(
#if NeedFunctionPrototypes
	Widget	w,
	Bool	callCallbacks
#endif
) ;

extern	void
XawTabsSetHighlight(
#if NeedFunctionPrototypes
	Widget	tabs,
	Widget	w
#endif
) ;

_XFUNCPROTOEND

#endif /* _Tabs_h */