--- /dev/null
+/* The lwlib interface to "xlwmenu" menus.
+ Copyright (C) 1992, 1994 Lucid, 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 2, 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 XEmacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <config.h>
+#include <stdlib.h> /* for abort () */
+#include <stdio.h> /* for abort () */
+#include <limits.h>
+
+#include "lwlib-Xlw.h"
+#include "lwlib-utils.h"
+#include <X11/StringDefs.h>
+#include <X11/IntrinsicP.h>
+#include <X11/ObjectP.h>
+#include <X11/CompositeP.h>
+#include <X11/Shell.h>
+#ifdef HAVE_WIDGETS
+#include "../src/EmacsManager.h"
+#endif
+#ifdef LWLIB_MENUBARS_LUCID
+#include "xlwmenu.h"
+#endif
+#ifdef LWLIB_SCROLLBARS_LUCID
+#include "xlwscrollbar.h"
+#endif
+#ifdef LWLIB_TABS_LUCID
+#ifdef NEED_MOTIF
+#include "lwlib-Xm.h"
+#endif
+#ifdef NEED_ATHENA
+#include "lwlib-Xaw.h"
+#endif
+#include "../src/xmu.h"
+#include "xlwtabs.h"
+#endif
+\f
+
+#include <X11/Intrinsic.h>
+#include <X11/StringDefs.h>
+#include <X11/Shell.h>
+#include <X11/Xaw/Form.h>
+#include <X11/Xaw/Command.h>
+
+
+#ifdef LWLIB_MENUBARS_LUCID
+
+/* Menu callbacks */
+
+static void
+pre_hook (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 0
+ /* #### - this code used to (for some random back_asswards reason) pass
+ the expression below in the call_data slot. For incremental menu
+ construction, this needs to go. I can't even figure out why it was done
+ this way in the first place...it's just a historical weirdism. --Stig */
+ call_data = (val ? val->call_data : NULL);
+#endif
+ if (val && val->call_data)
+ abort(); /* #### - the call_data for the top_level
+ "menubar" widget_value used to be passed
+ back to the pre_hook. */
+
+ if (instance->info->pre_activate_cb)
+ instance->info->pre_activate_cb (w, instance->info->id, call_data);
+}
+
+static void
+pick_hook (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;
+ LWLIB_ID id;
+ lw_callback post_activate_cb;
+
+ if (w->core.being_destroyed)
+ return;
+
+ /* Grab these values before running any functions, in case running
+ the selection_cb causes the widget to be destroyed. */
+ id = instance->info->id;
+ post_activate_cb = instance->info->post_activate_cb;
+
+ widget_val = lw_get_widget_value_for_widget (instance, w);
+ widget_arg = widget_val ? widget_val->call_data : NULL;
+
+ if (instance->info->selection_cb &&
+ contents_val &&
+ contents_val->enabled &&
+ !contents_val->contents)
+ instance->info->selection_cb (w, id, contents_val->call_data);
+
+ if (post_activate_cb)
+ post_activate_cb (w, id, widget_arg);
+}
+
+\f
+
+/* creation functions */
+static Widget
+xlw_create_menubar (widget_instance* instance)
+{
+ Arg al [1];
+ Widget widget;
+
+ XtSetArg (al [0], XtNmenu, instance->info->val);
+ widget = XtCreateWidget (instance->info->name, xlwMenuWidgetClass,
+ instance->parent, al, 1);
+ XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance);
+ XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
+ return widget;
+}
+
+static Widget
+xlw_create_popup_menu (widget_instance* instance)
+{
+ Arg al [2];
+ Widget popup_shell, widget;
+
+ popup_shell = XtCreatePopupShell (instance->info->name,
+ overrideShellWidgetClass,
+ instance->parent, NULL, 0);
+ XtSetArg (al [0], XtNmenu, instance->info->val);
+ XtSetArg (al [1], XtNhorizontal, False);
+ widget = XtCreateManagedWidget ("popup", xlwMenuWidgetClass,
+ popup_shell, al, 2);
+ XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
+ return popup_shell;
+}
+#endif /* LWLIB_MENUBARS_LUCID */
+
+#ifdef LWLIB_SCROLLBARS_LUCID
+static void
+xlw_scrollbar_callback (Widget widget, XtPointer closure, XtPointer call_data)
+{
+ widget_instance *instance = (widget_instance *) closure;
+ LWLIB_ID id;
+ XlwScrollBarCallbackStruct *data =
+ (XlwScrollBarCallbackStruct *) call_data;
+ scroll_event event_data;
+ scrollbar_values *val =
+ (scrollbar_values *) instance->info->val->scrollbar_data;
+ double percent;
+
+ if (!instance || widget->core.being_destroyed)
+ return;
+
+ id = instance->info->id;
+
+ percent = (double) (data->value - 1) / (double) (INT_MAX - 1);
+ event_data.slider_value =
+ (int) (percent * (double) (val->maximum - val->minimum)) + val->minimum;
+
+ if (event_data.slider_value > val->maximum - val->slider_size)
+ event_data.slider_value = val->maximum - val->slider_size;
+ else if (event_data.slider_value < val->minimum)
+ event_data.slider_value = val->minimum;
+
+ if (data->event)
+ {
+ switch (data->event->type)
+ {
+ case KeyPress:
+ case KeyRelease:
+ event_data.time = data->event->xkey.time;
+ break;
+ case ButtonPress:
+ case ButtonRelease:
+ event_data.time = data->event->xbutton.time;
+ break;
+ case MotionNotify:
+ event_data.time = data->event->xmotion.time;
+ break;
+ case EnterNotify:
+ case LeaveNotify:
+ event_data.time = data->event->xcrossing.time;
+ break;
+ default:
+ event_data.time = 0;
+ break;
+ }
+ }
+ else
+ event_data.time = 0;
+
+ switch (data->reason)
+ {
+ case XmCR_DECREMENT: event_data.action = SCROLLBAR_LINE_UP; break;
+ case XmCR_INCREMENT: event_data.action = SCROLLBAR_LINE_DOWN; break;
+ case XmCR_PAGE_DECREMENT: event_data.action = SCROLLBAR_PAGE_UP; break;
+ case XmCR_PAGE_INCREMENT: event_data.action = SCROLLBAR_PAGE_DOWN; break;
+ case XmCR_TO_TOP: event_data.action = SCROLLBAR_TOP; break;
+ case XmCR_TO_BOTTOM: event_data.action = SCROLLBAR_BOTTOM; break;
+ case XmCR_DRAG: event_data.action = SCROLLBAR_DRAG; break;
+ case XmCR_VALUE_CHANGED: event_data.action = SCROLLBAR_CHANGE; break;
+ default: event_data.action = SCROLLBAR_CHANGE; break;
+ }
+
+ if (instance->info->pre_activate_cb)
+ instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
+}
+
+#define add_scrollbar_callback(resource) \
+XtAddCallback (scrollbar, resource, xlw_scrollbar_callback, (XtPointer) instance)
+
+/* #### Does not yet support horizontal scrollbars. */
+static Widget
+xlw_create_scrollbar (widget_instance *instance, int vertical)
+{
+ Arg al[20];
+ int ac = 0;
+ static XtCallbackRec callbacks[2] =
+ { {xlw_scrollbar_callback, NULL}, {NULL, NULL} };
+
+ callbacks[0].closure = (XtPointer) instance;
+
+ XtSetArg (al[ac], XmNminimum, 1); ac++;
+ XtSetArg (al[ac], XmNmaximum, INT_MAX); ac++;
+ XtSetArg (al[ac], XmNincrement, 1); ac++;
+ XtSetArg (al[ac], XmNpageIncrement, 1); ac++;
+ XtSetArg (al[ac], XmNorientation, (vertical ? XmVERTICAL : XmHORIZONTAL)); ac++;
+
+ XtSetArg (al[ac], XmNdecrementCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNdragCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNincrementCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNpageDecrementCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNpageIncrementCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNtoBottomCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNtoTopCallback, callbacks); ac++;
+ XtSetArg (al[ac], XmNvalueChangedCallback, callbacks); ac++;
+
+ return XtCreateWidget (instance->info->name, xlwScrollBarWidgetClass,
+ instance->parent, al, ac);
+}
+
+static Widget
+xlw_create_vertical_scrollbar (widget_instance *instance)
+{
+ return xlw_create_scrollbar (instance, 1);
+}
+
+static Widget
+xlw_create_horizontal_scrollbar (widget_instance *instance)
+{
+ return xlw_create_scrollbar (instance, 0);
+}
+
+static void
+xlw_update_scrollbar (widget_instance *instance, Widget widget,
+ widget_value *val)
+{
+ if (val->scrollbar_data)
+ {
+ scrollbar_values *data = val->scrollbar_data;
+ int widget_sliderSize, widget_val;
+ int new_sliderSize, new_value;
+ double percent;
+ Arg al [4];
+
+ /* First size and position the scrollbar widget. */
+ XtSetArg (al [0], XtNx, data->scrollbar_x);
+ XtSetArg (al [1], XtNy, data->scrollbar_y);
+ XtSetArg (al [2], XtNwidth, data->scrollbar_width);
+ XtSetArg (al [3], XtNheight, data->scrollbar_height);
+ XtSetValues (widget, al, 4);
+
+ /* Now size the scrollbar's slider. */
+ XtSetArg (al [0], XmNsliderSize, &widget_sliderSize);
+ XtSetArg (al [1], XmNvalue, &widget_val);
+ XtGetValues (widget, al, 2);
+
+ percent = (double) data->slider_size /
+ (double) (data->maximum - data->minimum);
+ percent = (percent > 1.0 ? 1.0 : percent);
+ new_sliderSize = (int) ((double) (INT_MAX - 1) * percent);
+
+ percent = (double) (data->slider_position - data->minimum) /
+ (double) (data->maximum - data->minimum);
+ percent = (percent > 1.0 ? 1.0 : percent);
+ new_value = (int) ((double) (INT_MAX - 1) * percent);
+
+ if (new_sliderSize > INT_MAX - 1)
+ new_sliderSize = INT_MAX - 1;
+ else if (new_sliderSize < 1)
+ new_sliderSize = 1;
+
+ if (new_value > (INT_MAX - new_sliderSize))
+ new_value = INT_MAX - new_sliderSize;
+ else if (new_value < 1)
+ new_value = 1;
+
+ if (new_sliderSize != widget_sliderSize || new_value != widget_val)
+ XlwScrollBarSetValues (widget, new_value, new_sliderSize, 1, 1, False);
+ }
+}
+
+#endif /* LWLIB_SCROLLBARS_LUCID */
+
+#ifdef LWLIB_TABS_LUCID
+/* tab control
+
+ [[ lwlib is such an incredible hairy crock. I just cannot believe
+ it! There are random dependencies between functions, there is a
+ total lack of genericity, even though it initially appears to be
+ generic. It should all be junked and begun again. Building tabs are
+ an example - in theory we should be able to reuse a lot of the
+ general stuff because we want to put labels of whatever toolkit we
+ are using in the tab. Instead we have to hack it by hand. ]]
+ While lwlib is a hairy crock, whoever wrote that seems to misunderstand
+ Falk's tab control widget. The tab control widget has *two* kinds of
+ children: *widgets*, which all occupy a *single* pane below the row of
+ tabs---this is where the labels created in build_tabs_in_widget go, and
+ *gadgets*, the tabs themselves, which do *not* draw themselves, but
+ rather are drawn by the control. In fact, in XEmacs the true widget
+ children are *never* visible! So this case is not a problem in the
+ design of lwlib, but rather of Falk's widget. -- sjt */
+static void
+xlw_tab_control_callback (Widget w, XtPointer client_data, XtPointer call_data)
+{
+ /* call data is the topmost widget */
+ widget_instance* instance = (widget_instance*)client_data;
+ Widget top = (Widget)call_data;
+ char *name = XtName (top);
+ widget_value* widget_val;
+ XtPointer widget_arg;
+ LWLIB_ID id;
+ lw_callback post_activate_cb;
+
+ if (w->core.being_destroyed)
+ return;
+
+ /* Grab these values before running any functions, in case running
+ the selection_cb causes the widget to be destroyed. */
+ id = instance->info->id;
+ post_activate_cb = instance->info->post_activate_cb;
+
+ /* search for the widget_val for the selected tab */
+ for (widget_val = instance->info->val->contents; widget_val;
+ widget_val = widget_val->next)
+ {
+ if (!strcmp (widget_val->name, name))
+ break;
+ }
+
+ widget_arg = widget_val ? widget_val->call_data : NULL;
+
+ if (instance->info->selection_cb &&
+ widget_val &&
+ widget_val->enabled &&
+ !widget_val->contents)
+ instance->info->selection_cb (w, id, widget_arg);
+
+ if (post_activate_cb)
+ post_activate_cb (w, id, widget_arg);
+}
+
+static Widget
+xlw_create_tab_control (widget_instance *instance)
+{
+ Arg al[20];
+ int ac = 0;
+ Widget tab = 0;
+ widget_value* val = instance->info->val;
+
+ XtSetArg (al [ac], XtNsensitive, val->enabled); ac++;
+ XtSetArg (al [ac], XtNmappedWhenManaged, False); ac++;
+ XtSetArg (al [ac], XtNorientation, XtorientHorizontal); ac++;
+
+ /* add any args the user supplied for creation time */
+ lw_add_value_args_to_args (val, al, &ac);
+
+ tab = XtCreateManagedWidget (val->name, tabsWidgetClass,
+ instance->parent, al, ac);
+ XtRemoveAllCallbacks (tab, XtNcallback);
+ XtAddCallback (tab, XtNcallback, xlw_tab_control_callback, (XtPointer)instance);
+
+ XtManageChild (tab);
+
+ return tab;
+}
+
+static void build_tabs_in_widget (widget_instance* instance, Widget widget,
+ widget_value* val)
+{
+ widget_value* cur = val;
+ Arg al[1];
+
+ /* Children are always invisible, don't permit resizing. */
+ XtSetArg (al[0], XtNresizable, False);
+
+ for (cur = val; cur; cur = cur->next)
+ {
+ if (cur->value)
+ {
+ Widget w;
+#ifdef LWLIB_WIDGETS_MOTIF
+ w = xm_create_label (widget, cur);
+#else
+ w = xaw_create_label (widget, cur);
+#endif
+ XtSetValues (w, al, 1);
+ }
+ cur->change = NO_CHANGE;
+ }
+}
+
+static void
+xlw_update_tab_control (widget_instance* instance, Widget widget, widget_value* val)
+{
+ Widget* children;
+ unsigned int num_children;
+ int i;
+ widget_value *cur = 0;
+
+ XtRemoveAllCallbacks (widget, XtNcallback);
+ XtAddCallback (widget, XtNcallback, xlw_tab_control_callback, (XtPointer)instance);
+
+ if (val->change == STRUCTURAL_CHANGE
+ ||
+ (val->contents && val->contents->change == STRUCTURAL_CHANGE))
+ {
+ destroy_all_children (widget);
+ build_tabs_in_widget (instance, widget, val->contents);
+ }
+
+ children = XtCompositeChildren (widget, &num_children);
+ if (children)
+ {
+ for (i = 0, cur = val->contents; i < num_children; i++)
+ {
+ if (!cur)
+ abort ();
+ if (children [i]->core.being_destroyed
+ || strcmp (XtName (children [i]), cur->name))
+ continue;
+#ifdef NEED_MOTIF
+ if (lw_motif_widget_p (children [i]))
+ xm_update_one_widget (instance, children [i], cur, False);
+#endif
+#ifdef NEED_ATHENA
+ if (lw_xaw_widget_p (children [i]))
+ xaw_update_one_widget (instance, children [i], cur, False);
+#endif
+ cur = cur->next;
+ }
+ XtFree ((char *) children);
+ }
+ if (cur)
+ abort ();
+}
+#endif /* LWLIB_TABS_LUCID */
+
+#ifdef HAVE_WIDGETS
+static Widget
+xlw_create_clip_window (widget_instance *instance)
+{
+ Arg al[20];
+ int ac = 0;
+ Widget clip = 0;
+ widget_value* val = instance->info->val;
+
+ XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
+ XtSetArg (al [ac], XtNsensitive, TRUE); ac++;
+ /* add any args the user supplied for creation time */
+ lw_add_value_args_to_args (val, al, &ac);
+
+ /* Create a clip window to contain the subwidget. Incredibly the
+ XEmacs manager seems to be the most appropriate widget for
+ this. Nothing else is simple enough and yet does what is
+ required. */
+ clip = XtCreateManagedWidget (val->name,
+ emacsManagerWidgetClass,
+ instance->parent, al, ac);
+
+ return clip;
+}
+#endif
+
+const widget_creation_entry
+xlw_creation_table [] =
+{
+#ifdef LWLIB_MENUBARS_LUCID
+ {"menubar", xlw_create_menubar},
+ {"popup", xlw_create_popup_menu},
+#endif
+#ifdef LWLIB_SCROLLBARS_LUCID
+ {"vertical-scrollbar", xlw_create_vertical_scrollbar},
+ {"horizontal-scrollbar", xlw_create_horizontal_scrollbar},
+#endif
+#ifdef LWLIB_TABS_LUCID
+ {"tab-control", xlw_create_tab_control},
+#endif
+#ifdef HAVE_WIDGETS
+ {"clip-window", xlw_create_clip_window},
+#endif
+ {NULL, NULL}
+};
+
+Boolean
+lw_lucid_widget_p (Widget widget)
+{
+ WidgetClass the_class = XtClass (widget);
+#ifdef LWLIB_MENUBARS_LUCID
+ if (the_class == xlwMenuWidgetClass)
+ return True;
+#endif
+#ifdef LWLIB_SCROLLBARS_LUCID
+ if (the_class == xlwScrollBarWidgetClass)
+ return True;
+#endif
+#ifdef LWLIB_TABS_LUCID
+ if (the_class == tabsWidgetClass)
+ return True;
+#endif
+#ifdef LWLIB_MENUBARS_LUCID
+ if (the_class == overrideShellWidgetClass)
+ return
+ XtClass (((CompositeWidget)widget)->composite.children [0])
+ == xlwMenuWidgetClass;
+#endif
+#ifdef HAVE_WIDGETS
+ if (the_class == emacsManagerWidgetClass)
+ return True;
+#endif
+ return False;
+}
+
+void
+xlw_update_one_widget (widget_instance* instance, Widget widget,
+ widget_value* val, Boolean deep_p)
+{
+ WidgetClass class = XtClass (widget);
+
+ if (0)
+ ;
+#ifdef LWLIB_MENUBARS_LUCID
+ else if (class == xlwMenuWidgetClass)
+ {
+ XlwMenuWidget mw;
+ Arg al [1];
+ if (XtIsShell (widget))
+ mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0];
+ else
+ mw = (XlwMenuWidget)widget;
+ XtSetArg (al [0], XtNmenu, val);
+ XtSetValues (widget, al, 1); /* #### mw unused! */
+ }
+#endif
+#ifdef LWLIB_SCROLLBARS_LUCID
+ else if (class == xlwScrollBarWidgetClass)
+ {
+ xlw_update_scrollbar (instance, widget, val);
+ }
+#endif
+#ifdef LWLIB_TABS_LUCID
+ else if (class == tabsWidgetClass)
+ {
+ xlw_update_tab_control (instance, widget, val);
+ }
+#endif
+ /* Lastly update our global arg values. */
+ if (val->args && val->args->nargs)
+ XtSetValues (widget, val->args->args, val->args->nargs);
+}
+
+void
+xlw_update_one_value (widget_instance* instance, Widget widget,
+ widget_value* val)
+{
+ return;
+}
+
+void
+xlw_pop_instance (widget_instance* instance, Boolean up)
+{
+}
+
+#ifdef LWLIB_MENUBARS_LUCID
+void
+xlw_popup_menu (Widget widget, XEvent *event)
+{
+ XlwMenuWidget mw;
+
+ if (!XtIsShell (widget))
+ return;
+
+ if (event->type == ButtonPress || event->type == ButtonRelease)
+ {
+ mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0];
+ xlw_pop_up_menu (mw, (XButtonPressedEvent *)event);
+ }
+ else
+ abort ();
+}
+#endif /* LWLIB_MENUBARS_LUCID */
+
+\f/* Destruction of instances */
+void
+xlw_destroy_instance (widget_instance* instance)
+{
+ if (instance->widget)
+ XtDestroyWidget (instance->widget);
+}
projects / chise / xemacs-chise.git / blobdiff