Mercurial > hg > xemacs-beta
view tests/Dnd/droptest.el @ 5142:f965e31a35f0
reduce lcrecord headers to 2 words, rename printing_unreadable_object
-------------------- ChangeLog entries follow: --------------------
man/ChangeLog addition:
2010-03-13 Ben Wing <ben@xemacs.org>
* internals/internals.texi (Working with Lisp Objects):
* internals/internals.texi (Writing Macros):
* internals/internals.texi (lrecords):
More rewriting to correspond with changes from
*LRECORD* to *LISP_OBJECT*.
modules/ChangeLog addition:
2010-03-13 Ben Wing <ben@xemacs.org>
* postgresql/postgresql.c (print_pgconn):
* postgresql/postgresql.c (print_pgresult):
printing_unreadable_object -> printing_unreadable_object_fmt.
2010-03-13 Ben Wing <ben@xemacs.org>
* ldap/eldap.c (print_ldap):
printing_unreadable_object -> printing_unreadable_object_fmt.
src/ChangeLog addition:
2010-03-13 Ben Wing <ben@xemacs.org>
* alloc.c (alloc_sized_lrecord_1):
* alloc.c (alloc_sized_lrecord_array):
* alloc.c (old_alloc_sized_lcrecord):
* alloc.c (disksave_object_finalization_1):
* alloc.c (mark_lcrecord_list):
* alloc.c (alloc_managed_lcrecord):
* alloc.c (free_managed_lcrecord):
* alloc.c (tick_lcrecord_stats):
* alloc.c (sweep_lcrecords_1):
* buffer.c (print_buffer):
* buffer.c (DEFVAR_BUFFER_LOCAL_1):
* casetab.c:
* casetab.c (print_case_table):
* console.c (print_console):
* console.c (DEFVAR_CONSOLE_LOCAL_1):
* data.c (print_weak_list):
* data.c (print_weak_box):
* data.c (print_ephemeron):
* data.c (ephemeron_equal):
* database.c (print_database):
* database.c (finalize_database):
* device-msw.c (sync_printer_with_devmode):
* device-msw.c (print_devmode):
* device-msw.c (finalize_devmode):
* device.c:
* device.c (print_device):
* elhash.c:
* elhash.c (print_hash_table):
* eval.c (print_subr):
* eval.c (print_multiple_value):
* event-stream.c (event_stream_resignal_wakeup):
* events.c (clear_event_resource):
* events.c (zero_event):
* events.c (print_event):
* extents.c:
* extents.c (print_extent):
* file-coding.c (print_coding_system):
* font-mgr.c:
* font-mgr.c (Ffc_init):
* frame.c:
* frame.c (print_frame):
* gc.c:
* gc.c (GC_CHECK_NOT_FREE):
* glyphs.c:
* glyphs.c (print_image_instance):
* glyphs.c (print_glyph):
* gui.c (print_gui_item):
* gui.c (copy_gui_item):
* keymap.c (print_keymap):
* keymap.c (MARKED_SLOT):
* lisp.h:
* lisp.h (struct Lisp_String):
* lisp.h (DEFUN):
* lisp.h (DEFUN_NORETURN):
* lrecord.h:
* lrecord.h (NORMAL_LISP_OBJECT_UID):
* lrecord.h (struct lrecord_header):
* lrecord.h (set_lheader_implementation):
* lrecord.h (struct old_lcrecord_header):
* lrecord.h (struct free_lcrecord_header):
* marker.c (print_marker):
* mule-charset.c:
* mule-charset.c (print_charset):
* objects.c (print_color_instance):
* objects.c (print_font_instance):
* objects.c (finalize_font_instance):
* print.c (print_cons):
* print.c (printing_unreadable_object_fmt):
* print.c (printing_unreadable_lisp_object):
* print.c (external_object_printer):
* print.c (internal_object_printer):
* print.c (debug_p4):
* print.c (ext_print_begin):
* process.c (print_process):
* rangetab.c (print_range_table):
* rangetab.c (range_table_equal):
* scrollbar.c (free_scrollbar_instance):
* specifier.c (print_specifier):
* specifier.c (finalize_specifier):
* symbols.c (guts_of_unbound_marker):
* symeval.h:
* symeval.h (DEFVAR_SYMVAL_FWD):
* tooltalk.c:
* tooltalk.c (print_tooltalk_message):
* tooltalk.c (print_tooltalk_pattern):
* ui-gtk.c (ffi_object_printer):
* ui-gtk.c (emacs_gtk_object_printer):
* ui-gtk.c (emacs_gtk_boxed_printer):
* window.c (print_window):
* window.c (free_window_mirror):
* window.c (debug_print_window):
* xemacs.def.in.in:
(1) printing_unreadable_object -> printing_unreadable_object_fmt.
(2) printing_unreadable_lcrecord -> printing_unreadable_lisp_object
and fix up so it no longer requires an lcrecord.
These previous changes eliminate most of the remaining places where
the terms `lcrecord' and `lrecord' occurred outside of specialized
code.
(3) Fairly major change: Reduce the number of words in an lcrecord
from 3 to 2. The third word consisted of a uid that duplicated the
lrecord uid, and a single free bit, which was moved into the lrecord
structure. This reduces the size of the `uid' slot from 21 bits to
20 bits. Arguably this isn't enough -- we could easily have more than
1,000,000 or so objects created in a session. The answer is
(a) It doesn't really matter if we overflow the uid field because
it's only used for debugging, to identify an object uniquely
(or pretty much so).
(b) If we cared about it overflowing and wanted to reduce this,
we could make it so that cons, string, float and certain other
frob-block types that never print out the uid simply don't
store a uid in them and don't increment the lrecord_uid_counter.
(4) In conjunction with (3), create new macro NORMAL_LISP_OBJECT_UID()
and use it to abstract out the differences between NEWGC and old-GC
in accessing the `uid' value from a "normal Lisp Object pointer".
(5) In events.c, use zero_nonsized_lisp_object() in place of custom-
written equivalent. In font-mgr.c use external_object_printer()
in place of custom-written equivalents.
author | Ben Wing <ben@xemacs.org> |
---|---|
date | Sat, 13 Mar 2010 05:38:08 -0600 |
parents | bc4f2511bbea |
children | d88ad9ccfa66 |
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;; a short example how to use the new Drag'n'Drop API in ;; combination with extents. ;; (defun dnd-drop-message (event object text) (message "Dropped %s with :%s" text object) ;; signal that we have done something with the data t) (defun do-nothing (event object) ;; signal that the data is still unprocessed nil) (defun start-drag (event what &optional typ) ;; short drag interface, until the real one is implemented (cond ((featurep 'cde) (if (not typ) (funcall (intern "cde-start-drag-internal") event nil (list what)) (funcall (intern "cde-start-drag-internal") event t what))) (t display-message 'error "no valid drag protocols implemented"))) (defun start-region-drag (event) (interactive "_e") (if (click-inside-extent-p event zmacs-region-extent) ;; okay, this is a drag (cond ((featurep 'cde) (cde-start-drag-region event (extent-start-position zmacs-region-extent) (extent-end-position zmacs-region-extent))) (t (error "No CDE support compiled in"))))) (defun make-drop-targets () (let ((buf (get-buffer-create "*DND misc-user extent test buffer*")) (s nil) (e nil)) (set-buffer buf) (pop-to-buffer buf) (setq s (point)) (insert "[ DROP TARGET 1]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'experimental-dragdrop-drop-functions '((do-nothing t t) (dnd-drop-message t t "on target 1"))) (set-extent-property ext 'mouse-face 'highlight) (insert " ") (setq s (point)) (insert "[ DROP TARGET 2]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'experimental-dragdrop-drop-functions '((dnd-drop-message t t "on target 2"))) (set-extent-property ext 'mouse-face 'highlight) (insert " ") (setq s (point)) (insert "[ DROP TARGET 3]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'experimental-dragdrop-drop-functions '((dnd-drop-message t t "on target 3"))) (set-extent-property ext 'mouse-face 'highlight) (newline 2))) (defun make-drag-starters () (let ((buf (get-buffer-create "*DND misc-user extent test buffer*")) (s nil) (e nil) (ext nil) (kmap nil)) (set-buffer buf) (pop-to-buffer buf) (erase-buffer buf) (insert "Try to drag data from one of the upper extents to one\nof the lower extents. Make sure that your minibuffer is big\ncause it is used to display the data.\n\nYou may also try to select some of this text and drag it with button2.\n\nTo ") (setq s (point)) (insert "EXIT") (setq e (point)) (insert " this demo, press 'q'.") (setq ext (make-extent s e)) (setq kmap (make-keymap)) (define-key kmap [button1] 'end-dnd-demo) (set-extent-property ext 'keymap kmap) (set-extent-property ext 'mouse-face 'highlight) (newline 2) (setq s (point)) (insert "[ TEXT DRAG TEST ]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'mouse-face 'isearch) (setq kmap (make-keymap)) (define-key kmap [button1] 'text-drag) (set-extent-property ext 'keymap kmap) (insert " ") (setq s (point)) (insert "[ FILE DRAG TEST ]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'mouse-face 'isearch) (setq kmap (make-keymap)) (if (featurep 'cde) (define-key kmap [button1] 'cde-file-drag) (define-key kmap [button1] 'file-drag)) (set-extent-property ext 'keymap kmap) (insert " ") (setq s (point)) (insert "[ FILES DRAG TEST ]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'mouse-face 'isearch) (setq kmap (make-keymap)) (define-key kmap [button1] 'files-drag) (set-extent-property ext 'keymap kmap) (insert " ") (setq s (point)) (insert "[ URL DRAG TEST ]") (setq e (point)) (setq ext (make-extent s e)) (set-extent-property ext 'mouse-face 'isearch) (setq kmap (make-keymap)) (if (featurep 'cde) (define-key kmap [button1] 'cde-file-drag) (define-key kmap [button1] 'url-drag)) (set-extent-property ext 'keymap kmap) (newline 3))) (defun text-drag (event) (interactive "@e") (start-drag event "That's a test")) (defun file-drag (event) (interactive "@e") (start-drag event "/tmp/DropTest.xpm" 2)) (defun cde-file-drag (event) (interactive "@e") (start-drag event '("/tmp/DropTest.xpm") t)) (defun url-drag (event) (interactive "@e") (start-drag event "http://www.xemacs.org/" 8)) (defun files-drag (event) (interactive "@e") (start-drag event '("/tmp/DropTest.html" "/tmp/DropTest.xpm" "/tmp/DropTest.tex") 3)) (setq experimental-dragdrop-drop-functions '((do-nothing t t) ;; CDE does not have any button info... (dnd-drop-message 0 t "cde-drop somewhere else") (dnd-drop-message 2 t "region somewhere else") (dnd-drop-message 1 t "drag-source somewhere else") (do-nothing t t))) (make-drag-starters) (make-drop-targets) (defun end-dnd-demo () (interactive) (global-set-key [button2] button2-func) (bury-buffer)) (setq lmap (make-keymap)) (use-local-map lmap) (local-set-key [q] 'end-dnd-demo) (setq button2-func (lookup-key global-map [button2])) (global-set-key [button2] 'start-region-drag)