mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-26 10:49:33 +00:00
315 lines
7.9 KiB
C
315 lines
7.9 KiB
C
/* The lwlib interface to "xlwmenu" menus.
|
||
Copyright (C) 1992 Lucid, Inc.
|
||
Copyright (C) 1994, 2000, 2001, 2002, 2003, 2004,
|
||
2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
||
|
||
This file is part of the Lucid Widget Library.
|
||
|
||
The Lucid Widget Library 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 1, or (at your option)
|
||
any later version.
|
||
|
||
The Lucid Widget Library 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 GNU Emacs; see the file COPYING. If not, write to
|
||
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
||
Boston, MA 02110-1301, USA. */
|
||
|
||
#ifdef HAVE_CONFIG_H
|
||
#include <config.h>
|
||
#endif
|
||
|
||
#include "lisp.h"
|
||
|
||
#include "lwlib-Xlw.h"
|
||
#include <X11/StringDefs.h>
|
||
#include <X11/IntrinsicP.h>
|
||
#include <X11/ObjectP.h>
|
||
#include <X11/CompositeP.h>
|
||
#include <X11/Shell.h>
|
||
#include "xlwmenu.h"
|
||
|
||
#if 0
|
||
|
||
#include <stdio.h>
|
||
|
||
/* Print the complete X resource name of widget WIDGET to stderr.
|
||
This is sometimes handy to have available. */
|
||
|
||
void
|
||
x_print_complete_resource_name (widget)
|
||
Widget widget;
|
||
{
|
||
int i;
|
||
String names[100];
|
||
|
||
for (i = 0; i < 100 && widget != NULL; ++i)
|
||
{
|
||
names[i] = XtName (widget);
|
||
widget = XtParent (widget);
|
||
}
|
||
|
||
for (--i; i >= 1; --i)
|
||
fprintf (stderr, "%s.", names[i]);
|
||
fprintf (stderr, "%s\n", names[0]);
|
||
}
|
||
|
||
#endif /* 0 */
|
||
|
||
|
||
/* Menu callbacks */
|
||
|
||
/* Callback XtNhighlightCallback for Lucid menus. W is the menu
|
||
widget, CLIENT_DATA contains a pointer to the widget_instance
|
||
for the menu, CALL_DATA contains a pointer to the widget_value
|
||
structure for the highlighted menu item. The latter may be null
|
||
if there isn't any highlighted menu item. */
|
||
|
||
static void
|
||
highlight_hook (w, client_data, call_data)
|
||
Widget w;
|
||
XtPointer client_data;
|
||
XtPointer call_data;
|
||
{
|
||
widget_instance *instance = (widget_instance *) client_data;
|
||
|
||
if (instance->info->highlight_cb
|
||
&& !w->core.being_destroyed)
|
||
instance->info->highlight_cb (w, instance->info->id, call_data);
|
||
}
|
||
|
||
static void
|
||
enter_hook (w, client_data, call_data)
|
||
Widget w;
|
||
XtPointer client_data;
|
||
XtPointer call_data;
|
||
{
|
||
highlight_hook (w, client_data, call_data);
|
||
}
|
||
|
||
static void
|
||
leave_hook (w, client_data, call_data)
|
||
Widget w;
|
||
XtPointer client_data;
|
||
XtPointer call_data;
|
||
{
|
||
highlight_hook (w, client_data, NULL);
|
||
}
|
||
|
||
|
||
static void
|
||
pre_hook (w, client_data, call_data)
|
||
Widget w;
|
||
XtPointer client_data;
|
||
XtPointer call_data;
|
||
{
|
||
widget_instance* instance = (widget_instance*)client_data;
|
||
widget_value* val;
|
||
|
||
if (w->core.being_destroyed)
|
||
return;
|
||
|
||
val = lw_get_widget_value_for_widget (instance, w);
|
||
if (instance->info->pre_activate_cb)
|
||
instance->info->pre_activate_cb (w, instance->info->id,
|
||
val ? val->call_data : NULL);
|
||
}
|
||
|
||
static void
|
||
pick_hook (w, client_data, call_data)
|
||
Widget w;
|
||
XtPointer client_data;
|
||
XtPointer call_data;
|
||
{
|
||
widget_instance* instance = (widget_instance*)client_data;
|
||
widget_value* contents_val = (widget_value*)call_data;
|
||
widget_value* widget_val;
|
||
XtPointer widget_arg;
|
||
|
||
if (w->core.being_destroyed)
|
||
return;
|
||
|
||
if (instance->info->selection_cb && contents_val && contents_val->enabled
|
||
&& !contents_val->contents)
|
||
instance->info->selection_cb (w, instance->info->id,
|
||
contents_val->call_data);
|
||
|
||
widget_val = lw_get_widget_value_for_widget (instance, w);
|
||
widget_arg = widget_val ? widget_val->call_data : NULL;
|
||
if (instance->info->post_activate_cb)
|
||
instance->info->post_activate_cb (w, instance->info->id, widget_arg);
|
||
|
||
}
|
||
|
||
/* creation functions */
|
||
|
||
static Widget
|
||
xlw_create_menubar (instance)
|
||
widget_instance* instance;
|
||
{
|
||
Widget widget;
|
||
Arg al[5];
|
||
int ac = 0;
|
||
|
||
XtSetArg (al[ac], XtNmenu, instance->info->val); ac++;
|
||
#ifdef emacs
|
||
XtSetArg (al[ac], XtNshowGrip, 0); ac++;
|
||
XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++;
|
||
XtSetArg (al[ac], XtNallowResize, 1); ac++;
|
||
#endif
|
||
|
||
/* This used to use XtVaCreateWidget, but an old Xt version
|
||
has a bug in XtVaCreateWidget that frees instance->info->name. */
|
||
widget
|
||
= XtCreateWidget (instance->info->name, xlwMenuWidgetClass,
|
||
instance->parent, al, ac);
|
||
|
||
XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance);
|
||
XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
|
||
XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance);
|
||
XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance);
|
||
return widget;
|
||
}
|
||
|
||
static Widget
|
||
xlw_create_popup_menu (instance)
|
||
widget_instance* instance;
|
||
{
|
||
Widget popup_shell
|
||
= XtCreatePopupShell (instance->info->name, overrideShellWidgetClass,
|
||
instance->parent, NULL, 0);
|
||
|
||
Widget widget;
|
||
Arg al[2];
|
||
int ac = 0;
|
||
|
||
XtSetArg (al[ac], XtNmenu, instance->info->val); ac++;
|
||
XtSetArg (al[ac], XtNhorizontal, False); ac++;
|
||
|
||
/* This used to use XtVaManagedCreateWidget, but an old Xt version
|
||
has a bug in XtVaManagedCreateWidget that frees instance->info->name. */
|
||
widget
|
||
= XtCreateManagedWidget ("popup", xlwMenuWidgetClass,
|
||
popup_shell, al, ac);
|
||
|
||
XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
|
||
XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance);
|
||
XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance);
|
||
|
||
return popup_shell;
|
||
}
|
||
|
||
widget_creation_entry
|
||
xlw_creation_table [] =
|
||
{
|
||
{"menubar", xlw_create_menubar},
|
||
{"popup", xlw_create_popup_menu},
|
||
{NULL, NULL}
|
||
};
|
||
|
||
Boolean
|
||
lw_lucid_widget_p (widget)
|
||
Widget widget;
|
||
{
|
||
WidgetClass the_class = XtClass (widget);
|
||
|
||
if (the_class == xlwMenuWidgetClass)
|
||
return True;
|
||
if (the_class == overrideShellWidgetClass)
|
||
return (XtClass (((CompositeWidget)widget)->composite.children [0])
|
||
== xlwMenuWidgetClass);
|
||
return False;
|
||
}
|
||
|
||
void
|
||
#ifdef PROTOTYPES
|
||
xlw_update_one_widget (widget_instance* instance, Widget widget,
|
||
widget_value* val, Boolean deep_p)
|
||
#else
|
||
xlw_update_one_widget (instance, widget, val, deep_p)
|
||
widget_instance* instance;
|
||
Widget widget;
|
||
widget_value* val;
|
||
Boolean deep_p;
|
||
#endif
|
||
{
|
||
Arg al[1];
|
||
|
||
/* This used to use XtVaSetValues, but some old Xt versions
|
||
that have a bug in XtVaCreateWidget might have it here too. */
|
||
XtSetArg (al[0], XtNmenu, instance->info->val);
|
||
|
||
XtSetValues (widget, al, 1);
|
||
}
|
||
|
||
void
|
||
xlw_update_one_value (instance, widget, val)
|
||
widget_instance* instance;
|
||
Widget widget;
|
||
widget_value* val;
|
||
{
|
||
return;
|
||
}
|
||
|
||
void
|
||
#ifdef PROTOTYPES
|
||
xlw_pop_instance (widget_instance* instance, Boolean up)
|
||
#else
|
||
xlw_pop_instance (instance, up)
|
||
widget_instance* instance;
|
||
Boolean up;
|
||
#endif
|
||
{
|
||
}
|
||
|
||
void
|
||
xlw_popup_menu (widget, event)
|
||
Widget widget;
|
||
XEvent *event;
|
||
{
|
||
XlwMenuWidget mw;
|
||
|
||
if (!XtIsShell (widget))
|
||
return;
|
||
|
||
mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0];
|
||
|
||
if (event)
|
||
XtCallActionProc ((Widget) mw, "start", event, NULL, 0);
|
||
else
|
||
{
|
||
XEvent dummy;
|
||
XButtonPressedEvent *bd = &dummy.xbutton;
|
||
|
||
bd->type = ButtonPress;
|
||
bd->serial = 0;
|
||
bd->send_event = 0;
|
||
bd->display = XtDisplay (widget);
|
||
bd->window = XtWindow (XtParent (widget));
|
||
bd->time = CurrentTime;
|
||
bd->button = 0;
|
||
XQueryPointer (bd->display, bd->window, &bd->root,
|
||
&bd->subwindow, &bd->x_root, &bd->y_root,
|
||
&bd->x, &bd->y, &bd->state);
|
||
|
||
XtCallActionProc ((Widget) mw, "start", &dummy, NULL, 0);
|
||
}
|
||
}
|
||
|
||
/* Destruction of instances */
|
||
void
|
||
xlw_destroy_instance (instance)
|
||
widget_instance* instance;
|
||
{
|
||
if (instance->widget)
|
||
XtDestroyWidget (instance->widget);
|
||
}
|
||
|
||
/* arch-tag: 541e3912-477d-406e-9bf2-dbf2b7ff8c3b
|
||
(do not change this comment) */
|