view lisp/gutter.el @ 938:0391335b65dc

[xemacs-hg @ 2002-07-31 07:14:49 by michaels] 2002-07-17 Marcus Crestani <crestani@informatik.uni-tuebingen.de> Markus Kaltenbach <makalten@informatik.uni-tuebingen.de> Mike Sperber <mike@xemacs.org> configure flag to turn these changes on: --use-kkcc First we added a dumpable flag to lrecord_implementation. It shows, if the object is dumpable and should be processed by the dumper. * lrecord.h (struct lrecord_implementation): added dumpable flag (MAKE_LRECORD_IMPLEMENTATION): fitted the different makro definitions to the new lrecord_implementation and their calls. Then we changed mark_object, that it no longer needs a mark method for those types that have pdump descritions. * alloc.c: (mark_object): If the object has a description, the new mark algorithm is called, and the object is marked according to its description. Otherwise it uses the mark method like before. These procedures mark objects according to their descriptions. They are modeled on the corresponding pdumper procedures. (mark_with_description): (get_indirect_count): (structure_size): (mark_struct_contents): These procedures still call mark_object, this is needed while there are Lisp_Objects without descriptions left. We added pdump descriptions for many Lisp_Objects: * extents.c: extent_auxiliary_description * database.c: database_description * gui.c: gui_item_description * scrollbar.c: scrollbar_instance_description * toolbar.c: toolbar_button_description * event-stream.c: command_builder_description * mule-charset.c: charset_description * device-msw.c: devmode_description * dialog-msw.c: mswindows_dialog_id_description * eldap.c: ldap_description * postgresql.c: pgconn_description pgresult_description * tooltalk.c: tooltalk_message_description tooltalk_pattern_description * ui-gtk.c: emacs_ffi_description emacs_gtk_object_description * events.c: * events.h: * event-stream.c: * event-Xt.c: * event-gtk.c: * event-tty.c: To write a pdump description for Lisp_Event, we converted every struct in the union event to a Lisp_Object. So we created nine new Lisp_Objects: Lisp_Key_Data, Lisp_Button_Data, Lisp_Motion_Data, Lisp_Process_Data, Lisp_Timeout_Data, Lisp_Eval_Data, Lisp_Misc_User_Data, Lisp_Magic_Data, Lisp_Magic_Eval_Data. We also wrote makro selectors and mutators for the fields of the new designed Lisp_Event and added everywhere these new abstractions. We implemented XD_UNION support in (mark_with_description), so we can describe exspecially console/device specific data with XD_UNION. To describe with XD_UNION, we added a field to these objects, which holds the variant type of the object. This field is initialized in the appendant constructor. The variant is an integer, it has also to be described in an description, if XD_UNION is used. XD_UNION is used in following descriptions: * console.c: console_description (get_console_variant): returns the variant (create_console): added variant initialization * console.h (console_variant): the different console types * console-impl.h (struct console): added enum console_variant contype * device.c: device_description (Fmake_device): added variant initialization * device-impl.h (struct device): added enum console_variant devtype * objects.c: image_instance_description font_instance_description (Fmake_color_instance): added variant initialization (Fmake_font_instance): added variant initialization * objects-impl.h (struct Lisp_Color_Instance): added color_instance_type * objects-impl.h (struct Lisp_Font_Instance): added font_instance_type * process.c: process_description (make_process_internal): added variant initialization * process.h (process_variant): the different process types
author michaels
date Wed, 31 Jul 2002 07:14:49 +0000
parents 54fa1a5c2d12
children cd167465bf69 308d34e9f07d
line wrap: on
line source

;;; gutter.el --- Gutter manipulation for XEmacs.

;; Copyright (C) 1999 Free Software Foundation, Inc.
;; Copyright (C) 1999, 2000 Andy Piper.

;; Maintainer: XEmacs Development Team
;; Keywords: frames, gui, internal, dumped

;; 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 Xmacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;; Some of this is taken from the buffer-menu stuff in menubar-items.el
;; and the custom specs in toolbar.el.

(defgroup gutter nil
  "Input from the gutters."
  :group 'environment)

;; Although these customizations appear bogus, they are necessary in
;; order to be able to save options through the options menu.
(defcustom default-gutter-position
  (default-gutter-position)
  "The location of the default gutter. It can be 'top, 'bottom, 'left or
'right. This option should be customized through the options menu.
To set the gutter position explicitly use `set-default-gutter-position'"
  :group 'gutter
  :type '(choice (const :tag "top" top)
		 (const :tag "bottom" bottom)
		 (const :tag "left" left)
		 (const :tag "right" right))
  :set #'(lambda (var val)
	   (set-default-gutter-position val)
	   (setq default-gutter-position val)))

;;; Gutter helper functions

;; called by Fset_default_gutter_position()
(defvar default-gutter-position-changed-hook nil
  "Function or functions to be called when the gutter position is changed.
The value of this variable may be buffer-local.")

;; called by set-gutter-element-visible-p
(defvar gutter-element-visibility-changed-hook nil
  "Function or functions to be called when the visibility of an
element in the gutter changes.  The value of this variable may be
buffer-local. The gutter element symbol is passed as an argument to
the hook, as is the visibility flag.")

(defun set-gutter-element (gutter-specifier prop value &optional locale tag-set)
  "Set GUTTER-SPECIFIER gutter element PROP to VALUE in optional LOCALE.
This is a convenience function for setting gutter elements.
VALUE in general must be a string. If VALUE is a glyph then a string
will be created to put the glyph into."
  (let ((spec value))
    (when (glyphp value)
      (setq spec (copy-sequence "\n"))
      (set-extent-begin-glyph (make-extent 0 1 spec) value))
    (map-extents #'(lambda (extent arg)
		     (set-extent-property extent 'duplicable t)) spec)
    (modify-specifier-instances gutter-specifier #'plist-put (list prop spec)
				'force nil locale tag-set)))

(defun remove-gutter-element (gutter-specifier prop &optional locale tag-set)
  "Remove gutter element PROP from GUTTER-SPECIFIER in optional LOCALE.
This is a convenience function for removing gutter elements."
  (modify-specifier-instances gutter-specifier #'plist-remprop (list prop)
                              'force nil locale tag-set))

(defun set-gutter-element-visible-p (gutter-visible-specifier-p
				     prop &optional visible-p
				     locale tag-set)
  "Change the visibility of gutter elements.
Set the visibility of element PROP to VISIBLE-P for
GUTTER-SPECIFIER-VISIBLE-P in optional LOCALE.
This is a convenience function for hiding and showing gutter elements."
  (modify-specifier-instances
   gutter-visible-specifier-p #'(lambda (spec prop visible-p)
				  (if (consp spec)
				      (if visible-p
					  (if (memq prop spec) spec
					    (cons prop spec))
					(delq prop spec))
				    (if visible-p (list prop))))
   (list prop visible-p)
   'force nil locale tag-set)
  (run-hook-with-args 'gutter-element-visibility-changed-hook prop visible-p))

(defun gutter-element-visible-p (gutter-visible-specifier-p
				 prop &optional domain)
  "Determine whether a gutter element is visible.
Given GUTTER-VISIBLE-SPECIFIER-P and gutter element PROP, return
non-nil if it is visible in optional DOMAIN."
  (let ((spec (specifier-instance gutter-visible-specifier-p domain)))
    (or (and (listp spec) (memq 'buffers-tab spec))
 	spec)))

(defun set-gutter-dirty-p (gutter-or-location)
  "Make GUTTER-OR-LOCATION dirty to force redisplay updates."
  ;; set-glyph-image will not make the gutter dirty
  (when (or (gutter-specifier-p gutter-or-location)
	    (eq gutter-or-location 'top)
	    (eq gutter-or-location 'bottom)
	    (eq gutter-or-location 'left)
	    (eq gutter-or-location 'right))
    (or (gutter-specifier-p gutter-or-location) 
	(setq gutter-or-location
	      (eval (intern (concat 
			     (symbol-name gutter-or-location)
			     "-gutter")))))
    (set-specifier-dirty-flag gutter-or-location)))

(defun make-gutter-specifier (spec-list)
  "Return a new `gutter' specifier object with the given specification list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter specifiers are used to specify the format of a gutter.
The values of the variables `default-gutter', `top-gutter',
`left-gutter', `right-gutter', and `bottom-gutter' are always
gutter specifiers.

Valid gutter instantiators are called \"gutter descriptors\" and are
either strings or property-lists of strings.  See `default-gutter' for
a description of the exact format."
  (make-specifier-and-init 'gutter spec-list))

(defun make-gutter-size-specifier (spec-list)
  "Return a new `gutter-size' specifier object with the given spec list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter-size specifiers are used to specify the size of a gutter.  The
values of the variables `default-gutter-size', `top-gutter-size',
`left-gutter-size', `right-gutter-size', and `bottom-gutter-size' are
always gutter-size specifiers.

Valid gutter-size instantiators are either integers or the special
symbol 'autodetect. If a gutter-size is set to 'autodetect them the
size of the gutter will be adjusted to just accommodate the gutters
contents. 'autodetect only works for top and bottom gutters."
  (make-specifier-and-init 'gutter-size spec-list))

(defun make-gutter-visible-specifier (spec-list)
  "Return a new `gutter-visible' specifier object with the given spec list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter-visible specifiers are used to specify the visibility of a
gutter.  The values of the variables `default-gutter-visible-p',
`top-gutter-visible-p', `left-gutter-visible-p',
`right-gutter-visible-p', and `bottom-gutter-visible-p' are always
gutter-visible specifiers.

Valid gutter-visible instantiators are t, nil or a list of symbols.
If a gutter-visible instantiator is set to a list of symbols, and the
corresponding gutter specification is a property-list strings, then
elements of the gutter specification will only be visible if the
corresponding symbol occurs in the gutter-visible instantiator."
  (make-specifier-and-init 'gutter-visible spec-list))

;;; gutter.el ends here.