1339 lines
34 KiB
C
1339 lines
34 KiB
C
/* A general interface to the widgets of different toolkits.
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Copyright (C) 1992, 1993 Lucid, Inc.
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Copyright (C) 1994-1996, 1999-2024 Free Software Foundation, Inc.
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This file is part of the Lucid Widget Library.
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The Lucid Widget Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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The Lucid Widget Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <setjmp.h>
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#include <lisp.h>
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#include <c-strcase.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include "lwlib-int.h"
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#include "lwlib-utils.h"
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#include <X11/StringDefs.h>
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#if defined (USE_LUCID)
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#include "lwlib-Xlw.h"
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#endif
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#if defined (USE_MOTIF)
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#include "lwlib-Xm.h"
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#else /* not USE_MOTIF */
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#if defined (USE_LUCID)
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#define USE_XAW
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#endif /* not USE_MOTIF && USE_LUCID */
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#endif
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#if defined (USE_XAW)
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#ifdef HAVE_XAW3D
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#include <X11/Xaw3d/Paned.h>
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#else /* !HAVE_XAW3D */
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#include <X11/Xaw/Paned.h>
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#endif /* HAVE_XAW3D */
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#include "lwlib-Xaw.h"
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#endif
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#if !defined (USE_LUCID) && !defined (USE_MOTIF)
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#error At least one of USE_LUCID or USE_MOTIF must be defined.
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#endif
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#ifndef max
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#define max(x, y) ((x) > (y) ? (x) : (y))
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#endif
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/* List of all widgets managed by the library. */
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static widget_info*
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all_widget_info = NULL;
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#ifdef USE_MOTIF
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const char *lwlib_toolkit_type = "motif";
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#else
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const char *lwlib_toolkit_type = "lucid";
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#endif
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static widget_value *merge_widget_value (widget_value *,
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widget_value *,
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int, int *);
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static void instantiate_widget_instance (widget_instance *);
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static void free_widget_value_tree (widget_value *);
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static widget_value *copy_widget_value_tree (widget_value *,
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change_type);
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static widget_info *allocate_widget_info (const char *, const char *, LWLIB_ID,
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widget_value *,
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lw_callback, lw_callback,
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lw_callback, lw_callback);
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static void free_widget_info (widget_info *);
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static void mark_widget_destroyed (Widget, XtPointer, XtPointer);
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static widget_instance *allocate_widget_instance (widget_info *,
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Widget, Boolean);
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static void free_widget_instance (widget_instance *);
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static widget_info *get_widget_info (LWLIB_ID, Boolean);
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static widget_instance *get_widget_instance (Widget, Boolean);
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static widget_instance *find_instance (LWLIB_ID, Widget, Boolean);
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static Boolean safe_strcmp (const char *, const char *);
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static Widget name_to_widget (widget_instance *, const char *);
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static void set_one_value (widget_instance *, widget_value *, Boolean);
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static void update_one_widget_instance (widget_instance *, Boolean);
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static void update_all_widget_values (widget_info *, Boolean);
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static void initialize_widget_instance (widget_instance *);
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static widget_creation_function find_in_table (const char *, const widget_creation_entry *);
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static Boolean dialog_spec_p (const char *);
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static void destroy_one_instance (widget_instance *);
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static void lw_pop_all_widgets (LWLIB_ID, Boolean);
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static Boolean get_one_value (widget_instance *, widget_value *);
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static void show_one_widget_busy (Widget, Boolean);
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static void
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free_widget_value_tree (widget_value *wv)
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{
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if (!wv)
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return;
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xfree (wv->name);
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xfree (wv->value);
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xfree (wv->key);
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wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
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if (wv->toolkit_data && wv->free_toolkit_data)
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{
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XtFree (wv->toolkit_data);
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wv->toolkit_data = (void *) 0xDEADBEEF;
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}
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if (wv->contents && (wv->contents != (widget_value*)1))
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{
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free_widget_value_tree (wv->contents);
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wv->contents = (widget_value *) 0xDEADBEEF;
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}
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if (wv->next)
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{
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free_widget_value_tree (wv->next);
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wv->next = (widget_value *) 0xDEADBEEF;
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}
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xfree (wv);
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}
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static widget_value *
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copy_widget_value_tree (widget_value *val, change_type change)
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{
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widget_value* copy;
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if (!val)
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return NULL;
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if (val == (widget_value *) 1)
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return val;
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copy = xmalloc (sizeof (widget_value));
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copy->lname = copy->lkey = Qnil;
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copy->name = xstrdup (val->name);
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copy->value = val->value ? xstrdup (val->value) : NULL;
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copy->key = val->key ? xstrdup (val->key) : NULL;
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copy->help = val->help;
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copy->enabled = val->enabled;
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copy->button_type = val->button_type;
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copy->selected = val->selected;
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copy->edited = False;
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copy->change = change;
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copy->this_one_change = change;
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copy->contents = copy_widget_value_tree (val->contents, change);
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copy->call_data = val->call_data;
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copy->next = copy_widget_value_tree (val->next, change);
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copy->toolkit_data = NULL;
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copy->free_toolkit_data = False;
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return copy;
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}
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static widget_info *
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allocate_widget_info (const char* type,
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const char* name,
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LWLIB_ID id,
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widget_value* val,
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lw_callback pre_activate_cb,
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lw_callback selection_cb,
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lw_callback post_activate_cb,
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lw_callback highlight_cb)
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{
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widget_info* info = (widget_info*) xmalloc (sizeof (widget_info));
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info->type = xstrdup (type);
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info->name = xstrdup (name);
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info->id = id;
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info->val = copy_widget_value_tree (val, STRUCTURAL_CHANGE);
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info->busy = False;
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info->pre_activate_cb = pre_activate_cb;
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info->selection_cb = selection_cb;
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info->post_activate_cb = post_activate_cb;
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info->highlight_cb = highlight_cb;
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info->instances = NULL;
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info->next = all_widget_info;
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all_widget_info = info;
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return info;
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}
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static void
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free_widget_info (widget_info *info)
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{
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xfree (info->type);
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xfree (info->name);
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free_widget_value_tree (info->val);
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memset ((void*)info, 0xDEADBEEF, sizeof (widget_info));
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xfree (info);
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}
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static void
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mark_widget_destroyed (Widget widget, XtPointer closure, XtPointer call_data)
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{
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widget_instance* instance = (widget_instance*)closure;
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/* be very conservative */
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if (instance->widget == widget)
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instance->widget = NULL;
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}
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static widget_instance *
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allocate_widget_instance (widget_info* info, Widget parent, Boolean pop_up_p)
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{
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widget_instance* instance =
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(widget_instance*) xmalloc (sizeof (widget_instance));
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memset (instance, 0, sizeof *instance);
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instance->parent = parent;
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instance->pop_up_p = pop_up_p;
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instance->info = info;
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instance->next = info->instances;
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info->instances = instance;
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instantiate_widget_instance (instance);
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XtAddCallback (instance->widget, XtNdestroyCallback,
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mark_widget_destroyed, (XtPointer)instance);
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return instance;
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}
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static void
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free_widget_instance (widget_instance *instance)
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{
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memset ((void*)instance, 0xDEADBEEF, sizeof (widget_instance));
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xfree (instance);
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}
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static widget_info *
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get_widget_info (LWLIB_ID id, Boolean remove_p)
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{
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widget_info* info;
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widget_info* prev;
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for (prev = NULL, info = all_widget_info;
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info;
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prev = info, info = info->next)
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if (info->id == id)
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{
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if (remove_p)
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{
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if (prev)
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prev->next = info->next;
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else
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all_widget_info = info->next;
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}
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return info;
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}
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return NULL;
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}
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/* Internal function used by the library dependent implementation to get the
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widget_value for a given widget in an instance */
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widget_info *
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lw_get_widget_info (LWLIB_ID id)
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{
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return get_widget_info (id, 0);
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}
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static widget_instance *
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get_widget_instance (Widget widget, Boolean remove_p)
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{
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widget_info* info;
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widget_instance* instance;
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widget_instance* prev;
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for (info = all_widget_info; info; info = info->next)
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for (prev = NULL, instance = info->instances;
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instance;
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prev = instance, instance = instance->next)
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if (instance->widget == widget)
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{
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if (remove_p)
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{
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if (prev)
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prev->next = instance->next;
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else
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info->instances = instance->next;
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}
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return instance;
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}
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return (widget_instance *) 0;
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}
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/* Value is a pointer to the widget_instance corresponding to
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WIDGET, or null if WIDGET is not a lwlib widget. */
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widget_instance *
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lw_get_widget_instance (Widget widget)
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{
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return get_widget_instance (widget, False);
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}
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static widget_instance*
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find_instance (LWLIB_ID id, Widget parent, Boolean pop_up_p)
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{
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widget_info* info = get_widget_info (id, False);
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widget_instance* instance;
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if (info)
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for (instance = info->instances; instance; instance = instance->next)
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if (instance->parent == parent && instance->pop_up_p == pop_up_p)
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return instance;
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return NULL;
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}
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/* utility function for widget_value */
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static Boolean
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safe_strcmp (const char *s1, const char *s2)
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{
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if (!!s1 ^ !!s2) return True;
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return (s1 && s2) ? strcmp (s1, s2) : s1 ? False : !!s2;
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}
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#if 0
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# define EXPLAIN(name, oc, nc, desc, a1, a2) \
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printf ("Change: \"%s\"\tmax(%s=%d,%s=%d)\t%s %d %d\n", \
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name, \
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(oc == NO_CHANGE ? "none" : \
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(oc == INVISIBLE_CHANGE ? "invisible" : \
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(oc == VISIBLE_CHANGE ? "visible" : \
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(oc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
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oc, \
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(nc == NO_CHANGE ? "none" : \
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(nc == INVISIBLE_CHANGE ? "invisible" : \
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(nc == VISIBLE_CHANGE ? "visible" : \
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(nc == STRUCTURAL_CHANGE ? "structural" : "???")))), \
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nc, desc, a1, a2)
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#else
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# define EXPLAIN(name, oc, nc, desc, a1, a2) ((void) 0)
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#endif
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static widget_value *
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merge_widget_value (widget_value *val1,
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widget_value *val2,
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int level,
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int *change_p)
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{
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change_type change, this_one_change;
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||
widget_value* merged_next;
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widget_value* merged_contents;
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||
|
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if (!val1)
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{
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if (val2)
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{
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*change_p = 1;
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return copy_widget_value_tree (val2, STRUCTURAL_CHANGE);
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}
|
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else
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return NULL;
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}
|
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if (!val2)
|
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{
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*change_p = 1;
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free_widget_value_tree (val1);
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return NULL;
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}
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change = NO_CHANGE;
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if (safe_strcmp (val1->name, val2->name))
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{
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EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "name change",
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val1->name, val2->name);
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change = max (change, STRUCTURAL_CHANGE);
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dupstring (&val1->name, val2->name);
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||
}
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if (safe_strcmp (val1->value, val2->value))
|
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{
|
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EXPLAIN (val1->name, change, VISIBLE_CHANGE, "value change",
|
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val1->value, val2->value);
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change = max (change, VISIBLE_CHANGE);
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dupstring (&val1->value, val2->value);
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||
}
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if (safe_strcmp (val1->key, val2->key))
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{
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EXPLAIN (val1->name, change, VISIBLE_CHANGE, "key change",
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val1->key, val2->key);
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change = max (change, VISIBLE_CHANGE);
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||
dupstring (&val1->key, val2->key);
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}
|
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if (! EQ (val1->help, val2->help))
|
||
{
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||
EXPLAIN (val1->name, change, VISIBLE_CHANGE, "help change",
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val1->help, val2->help);
|
||
change = max (change, VISIBLE_CHANGE);
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val1->help = val2->help;
|
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}
|
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if (val1->enabled != val2->enabled)
|
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{
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EXPLAIN (val1->name, change, VISIBLE_CHANGE, "enablement change",
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val1->enabled, val2->enabled);
|
||
change = max (change, VISIBLE_CHANGE);
|
||
val1->enabled = val2->enabled;
|
||
}
|
||
if (val1->button_type != val2->button_type)
|
||
{
|
||
EXPLAIN (val1->name, change, VISIBLE_CHANGE, "button type change",
|
||
val1->button_type, val2->button_type);
|
||
change = max (change, VISIBLE_CHANGE);
|
||
val1->button_type = val2->button_type;
|
||
}
|
||
if (val1->selected != val2->selected)
|
||
{
|
||
EXPLAIN (val1->name, change, VISIBLE_CHANGE, "selection change",
|
||
val1->selected, val2->selected);
|
||
change = max (change, VISIBLE_CHANGE);
|
||
val1->selected = val2->selected;
|
||
}
|
||
if (val1->call_data != val2->call_data)
|
||
{
|
||
EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "call-data change",
|
||
val1->call_data, val2->call_data);
|
||
change = max (change, INVISIBLE_CHANGE);
|
||
val1->call_data = val2->call_data;
|
||
}
|
||
|
||
if (level > 0)
|
||
{
|
||
merged_contents =
|
||
merge_widget_value (val1->contents, val2->contents, level - 1,
|
||
change_p);
|
||
|
||
if (val1->contents && !merged_contents)
|
||
{
|
||
/* This used to say INVISIBLE_CHANGE,
|
||
but it is visible and vitally important when
|
||
the contents of the menu bar itself are entirely deleted.
|
||
|
||
But maybe it doesn't matter. This fails to fix the bug. */
|
||
EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(contents gone)",
|
||
0, 0);
|
||
change = max (change, STRUCTURAL_CHANGE);
|
||
}
|
||
else if (merged_contents && merged_contents->change != NO_CHANGE)
|
||
{
|
||
EXPLAIN (val1->name, change, INVISIBLE_CHANGE, "(contents change)",
|
||
0, 0);
|
||
change = max (change, INVISIBLE_CHANGE);
|
||
#if 0 /* This was replaced by the August 9 1996 change in lwlib-Xm.c. */
|
||
#ifdef USE_MOTIF
|
||
change = max (merged_contents->change, change);
|
||
#endif
|
||
#endif
|
||
}
|
||
|
||
val1->contents = merged_contents;
|
||
}
|
||
|
||
this_one_change = change;
|
||
|
||
merged_next = merge_widget_value (val1->next, val2->next, level, change_p);
|
||
|
||
if (val1->next && !merged_next)
|
||
{
|
||
EXPLAIN (val1->name, change, STRUCTURAL_CHANGE, "(following gone)",
|
||
0, 0);
|
||
change = max (change, STRUCTURAL_CHANGE);
|
||
}
|
||
else if (merged_next)
|
||
{
|
||
if (merged_next->change)
|
||
EXPLAIN (val1->name, change, merged_next->change, "(following change)",
|
||
0, 0);
|
||
change = max (change, merged_next->change);
|
||
}
|
||
|
||
val1->next = merged_next;
|
||
|
||
val1->this_one_change = this_one_change;
|
||
val1->change = change;
|
||
|
||
if (change > NO_CHANGE && val1->toolkit_data)
|
||
{
|
||
*change_p = 1;
|
||
if (val1->free_toolkit_data)
|
||
XtFree (val1->toolkit_data);
|
||
val1->toolkit_data = NULL;
|
||
}
|
||
|
||
return val1;
|
||
}
|
||
|
||
|
||
/* modifying the widgets */
|
||
static Widget
|
||
name_to_widget (widget_instance *instance, const char *name)
|
||
{
|
||
Widget widget = NULL;
|
||
|
||
if (!instance->widget)
|
||
return NULL;
|
||
|
||
if (!strcmp (XtName (instance->widget), name))
|
||
widget = instance->widget;
|
||
else
|
||
{
|
||
int length = strlen (name) + 2;
|
||
char* real_name = (char *) xmalloc (length);
|
||
real_name [0] = '*';
|
||
strcpy (real_name + 1, name);
|
||
|
||
widget = XtNameToWidget (instance->widget, real_name);
|
||
|
||
xfree (real_name);
|
||
}
|
||
return widget;
|
||
}
|
||
|
||
static void
|
||
set_one_value (widget_instance* instance, widget_value* val, Boolean deep_p)
|
||
{
|
||
Widget widget = name_to_widget (instance, val->name);
|
||
|
||
if (widget)
|
||
{
|
||
#if defined (USE_LUCID)
|
||
if (lw_lucid_widget_p (instance->widget))
|
||
xlw_update_one_widget (instance, widget, val, deep_p);
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (lw_motif_widget_p (instance->widget))
|
||
xm_update_one_widget (instance, widget, val, deep_p);
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (lw_xaw_widget_p (instance->widget))
|
||
xaw_update_one_widget (instance, widget, val, deep_p);
|
||
#endif
|
||
}
|
||
}
|
||
|
||
static void
|
||
update_one_widget_instance (widget_instance* instance, Boolean deep_p)
|
||
{
|
||
widget_value *val;
|
||
|
||
if (!instance->widget)
|
||
/* the widget was destroyed */
|
||
return;
|
||
|
||
for (val = instance->info->val; val; val = val->next)
|
||
if (val->change != NO_CHANGE)
|
||
set_one_value (instance, val, deep_p);
|
||
}
|
||
|
||
static void
|
||
update_all_widget_values (widget_info* info, Boolean deep_p)
|
||
{
|
||
widget_instance* instance;
|
||
widget_value* val;
|
||
|
||
for (instance = info->instances; instance; instance = instance->next)
|
||
update_one_widget_instance (instance, deep_p);
|
||
|
||
for (val = info->val; val; val = val->next)
|
||
val->change = NO_CHANGE;
|
||
}
|
||
|
||
int
|
||
lw_modify_all_widgets (LWLIB_ID id, widget_value* val, Boolean deep_p)
|
||
{
|
||
widget_info* info = get_widget_info (id, False);
|
||
widget_value* new_val;
|
||
widget_value* next_new_val;
|
||
widget_value* cur;
|
||
widget_value* prev;
|
||
widget_value* next;
|
||
int found;
|
||
int change_p = 0;
|
||
|
||
if (!info)
|
||
return 0;
|
||
|
||
for (new_val = val; new_val; new_val = new_val->next)
|
||
{
|
||
next_new_val = new_val->next;
|
||
new_val->next = NULL;
|
||
found = False;
|
||
for (prev = NULL, cur = info->val; cur; prev = cur, cur = cur->next)
|
||
if (!strcmp (cur->name, new_val->name))
|
||
{
|
||
found = True;
|
||
next = cur->next;
|
||
cur->next = NULL;
|
||
cur = merge_widget_value (cur, new_val, deep_p ? 1000 : 1,
|
||
&change_p);
|
||
if (prev)
|
||
prev->next = cur ? cur : next;
|
||
else
|
||
info->val = cur ? cur : next;
|
||
if (cur)
|
||
cur->next = next;
|
||
break;
|
||
}
|
||
if (!found)
|
||
{
|
||
/* Could not find it, add it */
|
||
if (prev)
|
||
prev->next = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
||
else
|
||
info->val = copy_widget_value_tree (new_val, STRUCTURAL_CHANGE);
|
||
change_p = 1;
|
||
}
|
||
new_val->next = next_new_val;
|
||
}
|
||
|
||
update_all_widget_values (info, deep_p);
|
||
return change_p;
|
||
}
|
||
|
||
|
||
/* creating the widgets */
|
||
|
||
static void
|
||
initialize_widget_instance (widget_instance *instance)
|
||
{
|
||
widget_value* val;
|
||
|
||
for (val = instance->info->val; val; val = val->next)
|
||
val->change = STRUCTURAL_CHANGE;
|
||
|
||
update_one_widget_instance (instance, True);
|
||
|
||
for (val = instance->info->val; val; val = val->next)
|
||
val->change = NO_CHANGE;
|
||
}
|
||
|
||
|
||
static widget_creation_function
|
||
find_in_table (const char *type, const widget_creation_entry *table)
|
||
{
|
||
const widget_creation_entry* cur;
|
||
for (cur = table; cur->type; cur++)
|
||
if (!c_strcasecmp (type, cur->type))
|
||
return cur->function;
|
||
return NULL;
|
||
}
|
||
|
||
static Boolean
|
||
dialog_spec_p (const char *name)
|
||
{
|
||
/* return True if name matches [EILPQeilpq][1-9][Bb] or
|
||
[EILPQeilpq][1-9][Bb][Rr][1-9] */
|
||
if (!name)
|
||
return False;
|
||
|
||
switch (name [0])
|
||
{
|
||
case 'E': case 'I': case 'L': case 'P': case 'Q':
|
||
case 'e': case 'i': case 'l': case 'p': case 'q':
|
||
if (name [1] >= '0' && name [1] <= '9')
|
||
{
|
||
if (name [2] != 'B' && name [2] != 'b')
|
||
return False;
|
||
if (!name [3])
|
||
return True;
|
||
if ((name [3] == 'T' || name [3] == 't') && !name [4])
|
||
return True;
|
||
if ((name [3] == 'R' || name [3] == 'r')
|
||
&& name [4] >= '0' && name [4] <= '9' && !name [5])
|
||
return True;
|
||
return False;
|
||
}
|
||
else
|
||
return False;
|
||
|
||
default:
|
||
return False;
|
||
}
|
||
}
|
||
|
||
static void
|
||
instantiate_widget_instance (widget_instance *instance)
|
||
{
|
||
widget_creation_function function = NULL;
|
||
|
||
#if defined (USE_LUCID)
|
||
if (!function)
|
||
function = find_in_table (instance->info->type, xlw_creation_table);
|
||
#endif
|
||
#if defined(USE_MOTIF)
|
||
if (!function)
|
||
function = find_in_table (instance->info->type, xm_creation_table);
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (!function)
|
||
function = find_in_table (instance->info->type, xaw_creation_table);
|
||
#endif
|
||
|
||
if (!function)
|
||
{
|
||
if (dialog_spec_p (instance->info->type))
|
||
{
|
||
#if defined (USE_LUCID)
|
||
/* not yet */
|
||
#endif
|
||
#if defined(USE_MOTIF)
|
||
if (!function)
|
||
function = xm_create_dialog;
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (!function)
|
||
function = xaw_create_dialog;
|
||
#endif
|
||
}
|
||
}
|
||
|
||
if (!function)
|
||
{
|
||
printf ("No creation function for widget type %s\n",
|
||
instance->info->type);
|
||
emacs_abort ();
|
||
}
|
||
|
||
instance->widget = (*function) (instance);
|
||
|
||
if (!instance->widget)
|
||
emacs_abort ();
|
||
|
||
/* XtRealizeWidget (instance->widget);*/
|
||
}
|
||
|
||
void
|
||
lw_register_widget (const char* type,
|
||
const char* name,
|
||
LWLIB_ID id,
|
||
widget_value* val,
|
||
lw_callback pre_activate_cb,
|
||
lw_callback selection_cb,
|
||
lw_callback post_activate_cb,
|
||
lw_callback highlight_cb)
|
||
{
|
||
if (!get_widget_info (id, False))
|
||
allocate_widget_info (type, name, id, val, pre_activate_cb, selection_cb,
|
||
post_activate_cb, highlight_cb);
|
||
}
|
||
|
||
Widget
|
||
lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
||
{
|
||
widget_instance* instance;
|
||
|
||
instance = find_instance (id, parent, pop_up_p);
|
||
return instance ? instance->widget : NULL;
|
||
}
|
||
|
||
Widget
|
||
lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p)
|
||
{
|
||
widget_instance* instance;
|
||
widget_info* info;
|
||
|
||
instance = find_instance (id, parent, pop_up_p);
|
||
if (!instance)
|
||
{
|
||
info = get_widget_info (id, False);
|
||
if (!info)
|
||
return NULL;
|
||
instance = allocate_widget_instance (info, parent, pop_up_p);
|
||
initialize_widget_instance (instance);
|
||
}
|
||
if (!instance->widget)
|
||
emacs_abort ();
|
||
return instance->widget;
|
||
}
|
||
|
||
Widget
|
||
lw_create_widget (const char* type, const char* name, LWLIB_ID id, widget_value* val,
|
||
Widget parent, Boolean pop_up_p,
|
||
lw_callback pre_activate_cb, lw_callback selection_cb,
|
||
lw_callback post_activate_cb, lw_callback highlight_cb)
|
||
{
|
||
lw_register_widget (type, name, id, val, pre_activate_cb, selection_cb,
|
||
post_activate_cb, highlight_cb);
|
||
return lw_make_widget (id, parent, pop_up_p);
|
||
}
|
||
|
||
|
||
/* destroying the widgets */
|
||
static void
|
||
destroy_one_instance (widget_instance *instance)
|
||
{
|
||
/* Remove the destroy callback on the widget; that callback will try to
|
||
dereference the instance object (to set its widget slot to 0, since the
|
||
widget is dead.) Since the instance is now dead, we don't have to worry
|
||
about the fact that its widget is dead too.
|
||
|
||
This happens in the Phase2Destroy of the widget, so this callback would
|
||
not have been run until arbitrarily long after the instance was freed.
|
||
*/
|
||
if (instance->widget)
|
||
XtRemoveCallback (instance->widget, XtNdestroyCallback,
|
||
mark_widget_destroyed, (XtPointer)instance);
|
||
|
||
if (instance->widget)
|
||
{
|
||
/* The else are pretty tricky here, including the empty statement
|
||
at the end because it would be very bad to destroy a widget
|
||
twice. */
|
||
#if defined (USE_LUCID)
|
||
if (lw_lucid_widget_p (instance->widget))
|
||
xlw_destroy_instance (instance);
|
||
else
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (lw_motif_widget_p (instance->widget))
|
||
xm_destroy_instance (instance);
|
||
else
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (lw_xaw_widget_p (instance->widget))
|
||
xaw_destroy_instance (instance);
|
||
else
|
||
#endif
|
||
{
|
||
/* Empty compound statement to terminate if-then-else chain. */
|
||
}
|
||
}
|
||
|
||
free_widget_instance (instance);
|
||
}
|
||
|
||
void
|
||
lw_destroy_widget (Widget w)
|
||
{
|
||
widget_instance* instance = get_widget_instance (w, True);
|
||
|
||
if (instance)
|
||
{
|
||
widget_info *info = instance->info;
|
||
/* instance has already been removed from the list; free it */
|
||
destroy_one_instance (instance);
|
||
/* if there are no instances left, free the info too */
|
||
if (!info->instances)
|
||
lw_destroy_all_widgets (info->id);
|
||
}
|
||
}
|
||
|
||
void
|
||
lw_destroy_all_widgets (LWLIB_ID id)
|
||
{
|
||
widget_info* info = get_widget_info (id, True);
|
||
widget_instance* instance;
|
||
widget_instance* next;
|
||
|
||
if (info)
|
||
{
|
||
for (instance = info->instances; instance; )
|
||
{
|
||
next = instance->next;
|
||
destroy_one_instance (instance);
|
||
instance = next;
|
||
}
|
||
free_widget_info (info);
|
||
}
|
||
}
|
||
|
||
void
|
||
lw_destroy_everything (void)
|
||
{
|
||
while (all_widget_info)
|
||
lw_destroy_all_widgets (all_widget_info->id);
|
||
}
|
||
|
||
void
|
||
lw_destroy_all_pop_ups (void)
|
||
{
|
||
widget_info* info;
|
||
widget_info* next;
|
||
widget_instance* instance;
|
||
|
||
for (info = all_widget_info; info; info = next)
|
||
{
|
||
next = info->next;
|
||
instance = info->instances;
|
||
if (instance && instance->pop_up_p)
|
||
lw_destroy_all_widgets (info->id);
|
||
}
|
||
}
|
||
|
||
#ifdef USE_MOTIF
|
||
extern Widget first_child (Widget); /* garbage */
|
||
#endif
|
||
|
||
Widget
|
||
lw_raise_all_pop_up_widgets (void)
|
||
{
|
||
widget_info* info;
|
||
widget_instance* instance;
|
||
Widget result = NULL;
|
||
|
||
for (info = all_widget_info; info; info = info->next)
|
||
for (instance = info->instances; instance; instance = instance->next)
|
||
if (instance->pop_up_p)
|
||
{
|
||
Widget widget = instance->widget;
|
||
if (widget)
|
||
{
|
||
if (XtIsManaged (widget)
|
||
#ifdef USE_MOTIF
|
||
/* What a complete load of crap!!!!
|
||
When a dialogShell is on the screen, it is not managed!
|
||
*/
|
||
|| (lw_motif_widget_p (instance->widget) &&
|
||
XtIsManaged (first_child (widget)))
|
||
#endif
|
||
)
|
||
{
|
||
if (!result)
|
||
result = widget;
|
||
XMapRaised (XtDisplay (widget), XtWindow (widget));
|
||
}
|
||
}
|
||
}
|
||
return result;
|
||
}
|
||
|
||
static void
|
||
lw_pop_all_widgets (LWLIB_ID id, Boolean up)
|
||
{
|
||
widget_info* info = get_widget_info (id, False);
|
||
widget_instance* instance;
|
||
|
||
if (info)
|
||
for (instance = info->instances; instance; instance = instance->next)
|
||
if (instance->pop_up_p && instance->widget)
|
||
{
|
||
#if defined (USE_LUCID)
|
||
if (lw_lucid_widget_p (instance->widget))
|
||
{
|
||
XtRealizeWidget (instance->widget);
|
||
xlw_pop_instance (instance, up);
|
||
}
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (lw_motif_widget_p (instance->widget))
|
||
{
|
||
XtRealizeWidget (instance->widget);
|
||
xm_pop_instance (instance, up);
|
||
}
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (lw_xaw_widget_p (instance->widget))
|
||
{
|
||
XtRealizeWidget (XtParent (instance->widget));
|
||
XtRealizeWidget (instance->widget);
|
||
xaw_pop_instance (instance, up);
|
||
}
|
||
#endif
|
||
}
|
||
}
|
||
|
||
void
|
||
lw_pop_up_all_widgets (LWLIB_ID id)
|
||
{
|
||
lw_pop_all_widgets (id, True);
|
||
}
|
||
|
||
void
|
||
lw_pop_down_all_widgets (LWLIB_ID id)
|
||
{
|
||
lw_pop_all_widgets (id, False);
|
||
}
|
||
|
||
void
|
||
lw_popup_menu (Widget widget, XEvent *event)
|
||
{
|
||
#if defined (USE_LUCID)
|
||
if (lw_lucid_widget_p (widget))
|
||
xlw_popup_menu (widget, event);
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (lw_motif_widget_p (widget))
|
||
xm_popup_menu (widget, event);
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (lw_xaw_widget_p (widget))
|
||
xaw_popup_menu (widget, event);
|
||
#endif
|
||
}
|
||
|
||
/* get the values back */
|
||
static Boolean
|
||
get_one_value (widget_instance *instance, widget_value *val)
|
||
{
|
||
Widget widget = name_to_widget (instance, val->name);
|
||
|
||
if (widget)
|
||
{
|
||
#if defined (USE_LUCID)
|
||
if (lw_lucid_widget_p (instance->widget))
|
||
xlw_update_one_value (instance, widget, val);
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (lw_motif_widget_p (instance->widget))
|
||
xm_update_one_value (instance, widget, val);
|
||
#endif
|
||
#if defined (USE_XAW)
|
||
if (lw_xaw_widget_p (instance->widget))
|
||
xaw_update_one_value (instance, widget, val);
|
||
#endif
|
||
return True;
|
||
}
|
||
else
|
||
return False;
|
||
}
|
||
|
||
Boolean
|
||
lw_get_some_values (LWLIB_ID id, widget_value *val_out)
|
||
{
|
||
widget_info* info = get_widget_info (id, False);
|
||
widget_instance* instance;
|
||
widget_value* val;
|
||
Boolean result = False;
|
||
|
||
if (!info)
|
||
return False;
|
||
|
||
instance = info->instances;
|
||
if (!instance)
|
||
return False;
|
||
|
||
for (val = val_out; val; val = val->next)
|
||
if (get_one_value (instance, val))
|
||
result = True;
|
||
|
||
return result;
|
||
}
|
||
|
||
widget_value*
|
||
lw_get_all_values (LWLIB_ID id)
|
||
{
|
||
widget_info* info = get_widget_info (id, False);
|
||
if (info)
|
||
{
|
||
widget_value* val = info->val;
|
||
if (lw_get_some_values (id, val))
|
||
return val;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/* internal function used by the library dependent implementation to get the
|
||
widget_value for a given widget in an instance */
|
||
widget_value*
|
||
lw_get_widget_value_for_widget (widget_instance *instance, Widget w)
|
||
{
|
||
char* name = XtName (w);
|
||
widget_value* cur;
|
||
for (cur = instance->info->val; cur; cur = cur->next)
|
||
if (!strcmp (cur->name, name))
|
||
return cur;
|
||
return NULL;
|
||
}
|
||
|
||
/* update other instances value when one thing changed */
|
||
|
||
/* To forbid recursive calls */
|
||
static Boolean lwlib_updating;
|
||
|
||
/* This function can be used as an XtCallback for the widgets that get
|
||
modified to update other instances of the widgets. Closure should be the
|
||
widget_instance. */
|
||
void
|
||
lw_internal_update_other_instances (Widget widget,
|
||
XtPointer closure,
|
||
XtPointer call_data)
|
||
{
|
||
widget_instance* instance = (widget_instance*)closure;
|
||
char* name = XtName (widget);
|
||
widget_info* info;
|
||
widget_instance* cur;
|
||
widget_value* val;
|
||
|
||
/* Avoid possibly infinite recursion. */
|
||
if (lwlib_updating)
|
||
return;
|
||
|
||
/* protect against the widget being destroyed */
|
||
if (XtWidgetBeingDestroyedP (widget))
|
||
return;
|
||
|
||
/* Return immediately if there are no other instances */
|
||
info = instance->info;
|
||
if (!info->instances->next)
|
||
return;
|
||
|
||
lwlib_updating = True;
|
||
|
||
for (val = info->val; val && strcmp (val->name, name); val = val->next);
|
||
|
||
if (val && get_one_value (instance, val))
|
||
for (cur = info->instances; cur; cur = cur->next)
|
||
if (cur != instance)
|
||
set_one_value (cur, val, True);
|
||
|
||
lwlib_updating = False;
|
||
}
|
||
|
||
|
||
/* get the id */
|
||
|
||
LWLIB_ID
|
||
lw_get_widget_id (Widget w)
|
||
{
|
||
widget_instance* instance = get_widget_instance (w, False);
|
||
|
||
return instance ? instance->info->id : 0;
|
||
}
|
||
|
||
/* set the keyboard focus */
|
||
void
|
||
lw_set_keyboard_focus (Widget parent, Widget w)
|
||
{
|
||
#if defined (USE_MOTIF)
|
||
xm_set_keyboard_focus (parent, w);
|
||
#else
|
||
XtSetKeyboardFocus (parent, w);
|
||
#endif
|
||
}
|
||
|
||
/* Show busy */
|
||
static void
|
||
show_one_widget_busy (Widget w, Boolean flag)
|
||
{
|
||
Pixel foreground = 0;
|
||
Pixel background = 1;
|
||
Widget widget_to_invert = XtNameToWidget (w, "*sheet");
|
||
if (!widget_to_invert)
|
||
widget_to_invert = w;
|
||
|
||
XtVaGetValues (widget_to_invert,
|
||
XtNforeground, &foreground,
|
||
XtNbackground, &background,
|
||
NULL);
|
||
XtVaSetValues (widget_to_invert,
|
||
XtNforeground, background,
|
||
XtNbackground, foreground,
|
||
NULL);
|
||
}
|
||
|
||
void
|
||
lw_show_busy (Widget w, Boolean busy)
|
||
{
|
||
widget_instance* instance = get_widget_instance (w, False);
|
||
widget_info* info;
|
||
widget_instance* next;
|
||
|
||
if (instance)
|
||
{
|
||
info = instance->info;
|
||
if (info->busy != busy)
|
||
{
|
||
for (next = info->instances; next; next = next->next)
|
||
if (next->widget)
|
||
show_one_widget_busy (next->widget, busy);
|
||
info->busy = busy;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* This hack exists because Lucid/Athena need to execute the strange
|
||
function below to support geometry management. */
|
||
void
|
||
lw_refigure_widget (Widget w, Boolean doit)
|
||
{
|
||
#if defined (USE_XAW)
|
||
XawPanedSetRefigureMode (w, doit);
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
if (doit)
|
||
XtManageChild (w);
|
||
else
|
||
XtUnmanageChild (w);
|
||
#endif
|
||
}
|
||
|
||
/* Toolkit independent way of determining if an event window is in the
|
||
menubar. */
|
||
Boolean
|
||
lw_window_is_in_menubar (Window win, Widget menubar_widget)
|
||
{
|
||
return menubar_widget
|
||
#if defined (USE_LUCID)
|
||
&& XtWindow (menubar_widget) == win;
|
||
#endif
|
||
#if defined (USE_MOTIF)
|
||
&& ((XtWindow (menubar_widget) == win)
|
||
|| (XtWindowToWidget (XtDisplay (menubar_widget), win)
|
||
&& (XtParent (XtWindowToWidget (XtDisplay (menubar_widget), win))
|
||
== menubar_widget)));
|
||
#endif
|
||
}
|
||
|
||
/* Motif hack to set the main window areas. */
|
||
void
|
||
lw_set_main_areas (Widget parent, Widget menubar, Widget work_area)
|
||
{
|
||
#if defined (USE_MOTIF)
|
||
xm_set_main_areas (parent, menubar, work_area);
|
||
#endif
|
||
}
|
||
|
||
/* Manage resizing for Motif. This disables resizing when the menubar
|
||
is about to be modified. */
|
||
void
|
||
lw_allow_resizing (Widget w, Boolean flag)
|
||
{
|
||
#if defined (USE_MOTIF)
|
||
xm_manage_resizing (w, flag);
|
||
#endif
|
||
}
|
||
|
||
|
||
/* Value is non-zero if LABEL is a menu separator. If it is, *TYPE is
|
||
set to an appropriate enumerator of type enum menu_separator.
|
||
MOTIF_P non-zero means map separator types not supported by Motif
|
||
to similar ones that are supported. */
|
||
|
||
int
|
||
lw_separator_p (const char *label, enum menu_separator *type, int motif_p)
|
||
{
|
||
int separator_p = 0;
|
||
|
||
if (strncmp (label, "--:", 3) == 0)
|
||
{
|
||
static struct separator_table
|
||
{
|
||
const char *name;
|
||
enum menu_separator type;
|
||
}
|
||
separator_names[] =
|
||
{
|
||
{"space", SEPARATOR_NO_LINE},
|
||
{"noLine", SEPARATOR_NO_LINE},
|
||
{"singleLine", SEPARATOR_SINGLE_LINE},
|
||
{"doubleLine", SEPARATOR_DOUBLE_LINE},
|
||
{"singleDashedLine", SEPARATOR_SINGLE_DASHED_LINE},
|
||
{"doubleDashedLine", SEPARATOR_DOUBLE_DASHED_LINE},
|
||
{"shadowEtchedIn", SEPARATOR_SHADOW_ETCHED_IN},
|
||
{"shadowEtchedOut", SEPARATOR_SHADOW_ETCHED_OUT},
|
||
{"shadowEtchedInDash", SEPARATOR_SHADOW_ETCHED_IN_DASH},
|
||
{"shadowEtchedOutDash", SEPARATOR_SHADOW_ETCHED_OUT_DASH},
|
||
{"shadowDoubleEtchedIn", SEPARATOR_SHADOW_DOUBLE_ETCHED_IN},
|
||
{"shadowDoubleEtchedOut", SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT},
|
||
{"shadowDoubleEtchedInDash", SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH},
|
||
{"shadowDoubleEtchedOutDash", SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH},
|
||
{0,0}
|
||
};
|
||
|
||
int i;
|
||
|
||
label += 3;
|
||
for (i = 0; separator_names[i].name; ++i)
|
||
if (strcmp (label, separator_names[i].name) == 0)
|
||
{
|
||
separator_p = 1;
|
||
*type = separator_names[i].type;
|
||
|
||
/* If separator type is not supported under Motif,
|
||
use a similar one. */
|
||
if (motif_p && *type >= SEPARATOR_SHADOW_DOUBLE_ETCHED_IN)
|
||
*type -= 4;
|
||
break;
|
||
}
|
||
}
|
||
else if (strnlen (label, 4) == 4
|
||
&& memcmp (label, "--", 2) == 0
|
||
&& label[2] != '-')
|
||
{
|
||
/* Alternative, more Emacs-style names. */
|
||
static struct separator_table
|
||
{
|
||
const char *name;
|
||
enum menu_separator type;
|
||
}
|
||
separator_names[] =
|
||
{
|
||
{"space", SEPARATOR_NO_LINE},
|
||
{"no-line", SEPARATOR_NO_LINE},
|
||
{"single-line", SEPARATOR_SINGLE_LINE},
|
||
{"double-line", SEPARATOR_DOUBLE_LINE},
|
||
{"single-dashed-line", SEPARATOR_SINGLE_DASHED_LINE},
|
||
{"double-dashed-line", SEPARATOR_DOUBLE_DASHED_LINE},
|
||
{"shadow-etched-in", SEPARATOR_SHADOW_ETCHED_IN},
|
||
{"shadow-etched-out", SEPARATOR_SHADOW_ETCHED_OUT},
|
||
{"shadow-etched-in-dash", SEPARATOR_SHADOW_ETCHED_IN_DASH},
|
||
{"shadow-etched-out-dash", SEPARATOR_SHADOW_ETCHED_OUT_DASH},
|
||
{"shadow-double-etched-in", SEPARATOR_SHADOW_DOUBLE_ETCHED_IN},
|
||
{"shadow-double-etched-out", SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT},
|
||
{"shadow-double-etched-in-dash", SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH},
|
||
{"shadow-double-etched-out-dash",SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH},
|
||
{0,0}
|
||
};
|
||
|
||
int i;
|
||
|
||
label += 2;
|
||
for (i = 0; separator_names[i].name; ++i)
|
||
if (strcmp (label, separator_names[i].name) == 0)
|
||
{
|
||
separator_p = 1;
|
||
*type = separator_names[i].type;
|
||
|
||
/* If separator type is not supported under Motif,
|
||
use a similar one. */
|
||
if (motif_p && *type >= SEPARATOR_SHADOW_DOUBLE_ETCHED_IN)
|
||
*type -= 4;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Old-style separator, maybe. It's a separator if it contains
|
||
only dashes. */
|
||
if (*label == '-')
|
||
{
|
||
while (*label == '-')
|
||
++label;
|
||
separator_p = *label == 0;
|
||
|
||
*type = SEPARATOR_SHADOW_ETCHED_IN;
|
||
}
|
||
}
|
||
|
||
return separator_p;
|
||
}
|