Mercurial > hg > xemacs-beta
annotate lwlib/lwlib-utils.c @ 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 | 04bc9d2f42c7 |
| children | ade4c7e2c6cb |
| rev | line source |
|---|---|
| 428 | 1 /* Defines some widget utility functions. |
| 2 Copyright (C) 1992 Lucid, Inc. | |
| 3 | |
| 4 This file is part of the Lucid Widget Library. | |
| 5 | |
| 6 The Lucid Widget Library is free software; you can redistribute it and/or | |
| 7 modify it under the terms of the GNU General Public License as published by | |
| 8 the Free Software Foundation; either version 1, or (at your option) | |
| 9 any later version. | |
| 10 | |
| 11 The Lucid Widget Library is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 #include <config.h> | |
| 22 #include <stdlib.h> | |
| 23 #include <string.h> | |
| 24 #include <memory.h> | |
| 25 #ifdef HAVE_UNISTD_H | |
| 26 #include <unistd.h> | |
| 27 #endif | |
| 28 | |
| 29 #include <X11/Xatom.h> | |
| 30 #include <X11/IntrinsicP.h> | |
| 31 #include <X11/ObjectP.h> | |
| 32 #include "lwlib-utils.h" | |
| 33 | |
| 34 void | |
| 35 destroy_all_children (Widget widget) | |
| 36 { | |
| 37 Widget* children; | |
| 38 unsigned int number; | |
| 39 int i; | |
| 40 | |
| 41 children = XtCompositeChildren (widget, &number); | |
| 42 if (children) | |
| 43 { | |
| 44 /* Unmanage all children and destroy them. They will only be | |
| 45 * really destroyed when we get out of DispatchEvent. */ | |
| 487 | 46 for (i = 0; i < (int) number; i++) |
| 428 | 47 { |
| 48 Widget child = children [i]; | |
| 49 if (!child->core.being_destroyed) | |
| 50 { | |
| 51 XtUnmanageChild (child); | |
| 52 XtDestroyWidget (child); | |
| 53 } | |
| 54 } | |
| 55 XtFree ((char *) children); | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 /* Redisplay the contents of the widget, without first clearing it. */ | |
| 60 void | |
| 61 XtNoClearRefreshWidget (Widget widget) | |
| 62 { | |
| 63 XEvent event; | |
| 64 XExposeEvent* ev = &event.xexpose; | |
| 65 | |
| 66 ev->type = Expose; | |
| 67 ev->serial = 0; | |
| 68 ev->send_event = 0; | |
| 69 ev->display = XtDisplay (widget); | |
| 70 ev->window = XtWindow (widget); | |
| 71 ev->x = 0; | |
| 72 ev->y = 0; | |
| 73 ev->width = widget->core.width; | |
| 74 ev->height = widget->core.height; | |
| 75 ev->count = 0; | |
| 76 | |
| 77 (*widget->core.widget_class->core_class.expose) | |
| 78 (widget, &event, (Region)NULL); | |
| 79 } | |
| 80 | |
| 81 | |
| 82 /* | |
| 83 * Apply a function to all the subwidgets of a given widget recursively. | |
| 84 */ | |
| 85 void | |
| 86 XtApplyToWidgets (Widget w, XtApplyToWidgetsProc proc, XtPointer arg) | |
| 87 { | |
| 88 if (XtIsComposite (w)) | |
| 89 { | |
| 90 CompositeWidget cw = (CompositeWidget) w; | |
| 91 /* We have to copy the children list before mapping over it, because | |
| 92 the procedure might add/delete elements, which would lose badly. */ | |
| 93 int nkids = cw->composite.num_children; | |
| 94 Widget *kids = (Widget *) malloc (sizeof (Widget) * nkids); | |
| 95 int i; | |
| 96 memcpy (kids, cw->composite.children, sizeof (Widget) * nkids); | |
| 97 for (i = 0; i < nkids; i++) | |
| 98 /* This prevent us from using gadgets, why is it here? */ | |
| 99 /* if (XtIsWidget (kids [i])) */ | |
| 100 { | |
| 101 /* do the kiddies first in case we're destroying */ | |
| 102 XtApplyToWidgets (kids [i], proc, arg); | |
| 103 proc (kids [i], arg); | |
| 104 } | |
| 105 free (kids); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 | |
| 110 /* | |
| 111 * Apply a function to all the subwidgets of a given widget recursively. | |
| 112 * Stop as soon as the function returns non NULL and returns this as a value. | |
| 113 */ | |
| 114 void * | |
| 115 XtApplyUntilToWidgets (Widget w, XtApplyUntilToWidgetsProc proc, XtPointer arg) | |
| 116 { | |
| 117 void* result; | |
| 118 if (XtIsComposite (w)) | |
| 119 { | |
| 120 CompositeWidget cw = (CompositeWidget)w; | |
| 121 int i; | |
| 647 | 122 for (i = 0; i < (int) cw->composite.num_children; i++) |
| 123 if (XtIsWidget (cw->composite.children[i])) | |
| 124 { | |
| 125 result = proc (cw->composite.children[i], arg); | |
| 126 if (result) | |
| 127 return result; | |
| 128 result = XtApplyUntilToWidgets (cw->composite.children[i], proc, | |
| 129 arg); | |
| 130 if (result) | |
| 131 return result; | |
| 132 } | |
| 428 | 133 } |
| 134 return NULL; | |
| 135 } | |
| 136 | |
| 137 | |
| 138 /* | |
| 139 * Returns a copy of the list of all children of a composite widget | |
| 140 */ | |
| 141 Widget * | |
| 142 XtCompositeChildren (Widget widget, unsigned int* number) | |
| 143 { | |
| 144 CompositeWidget cw = (CompositeWidget)widget; | |
| 145 Widget* result; | |
| 146 int n; | |
| 147 int i; | |
| 148 | |
| 149 if (!XtIsComposite (widget)) | |
| 150 { | |
| 151 *number = 0; | |
| 152 return NULL; | |
| 153 } | |
| 154 n = cw->composite.num_children; | |
| 155 result = (Widget*)XtMalloc (n * sizeof (Widget)); | |
| 156 *number = n; | |
| 157 for (i = 0; i < n; i++) | |
| 158 result [i] = cw->composite.children [i]; | |
| 159 return result; | |
| 160 } | |
| 161 | |
| 162 Boolean | |
| 163 XtWidgetBeingDestroyedP (Widget widget) | |
| 164 { | |
| 165 return widget->core.being_destroyed; | |
| 166 } | |
| 167 | |
| 168 void | |
| 2286 | 169 XtSafelyDestroyWidget (Widget UNUSED (widget)) |
| 428 | 170 { |
| 171 #if 0 | |
| 172 | |
| 173 /* this requires IntrinsicI.h (actually, InitialI.h) */ | |
| 174 | |
| 175 XtAppContext app = XtWidgetToApplicationContext(widget); | |
| 176 | |
| 177 if (app->dispatch_level == 0) | |
| 178 { | |
| 179 app->dispatch_level = 1; | |
| 180 XtDestroyWidget (widget); | |
| 181 /* generates an event so that the event loop will be called */ | |
| 182 XChangeProperty (XtDisplay (widget), XtWindow (widget), | |
| 183 XA_STRING, XA_STRING, 32, PropModeAppend, NULL, 0); | |
| 184 app->dispatch_level = 0; | |
| 185 } | |
| 186 else | |
| 187 XtDestroyWidget (widget); | |
| 188 | |
| 189 #else | |
| 190 abort (); | |
| 191 #endif | |
| 192 } |