--- /dev/null
+/* The lwlib interface to Athena widgets.
+ Copyright (C) 1993 Chuck Thompson <cthomp@cs.uiuc.edu>
+
+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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+
+#include "lwlib-Xaw.h"
+
+#include <X11/StringDefs.h>
+#include <X11/IntrinsicP.h>
+#include <X11/CoreP.h>
+#include <X11/Shell.h>
+
+#include <X11/Xaw/Scrollbar.h>
+#include <X11/Xaw/Paned.h>
+#include <X11/Xaw/Dialog.h>
+#include <X11/Xaw/Form.h>
+#include <X11/Xaw/Command.h>
+#include <X11/Xaw/Label.h>
+
+#include <X11/Xatom.h>
+
+static void xaw_generic_callback (Widget, XtPointer, XtPointer);
+
+
+Boolean
+lw_xaw_widget_p (Widget widget)
+{
+ return (XtIsSubclass (widget, scrollbarWidgetClass) ||
+ XtIsSubclass (widget, dialogWidgetClass));
+}
+
+static void
+xaw_update_scrollbar (widget_instance *instance, Widget widget,
+ widget_value *val)
+{
+#if 0
+ if (val->scrollbar_data)
+ {
+ scrollbar_values *data = val->scrollbar_data;
+ Dimension height, width;
+ Dimension pos_x, pos_y;
+ int widget_shown, widget_topOfThumb;
+ float new_shown, new_topOfThumb;
+
+ XtVaGetValues (widget,
+ XtNheight, &height,
+ XtNwidth, &width,
+ XtNx, &pos_x,
+ XtNy, &pos_y,
+ XtNtopOfThumb, &widget_topOfThumb,
+ XtNshown, &widget_shown,
+ 0);
+
+ /*
+ * First size and position the scrollbar widget.
+ * We need to position it to second-guess the Paned widget's notion
+ * of what should happen when the WMShell gets resized.
+ */
+ if (height != data->scrollbar_height || pos_y != data->scrollbar_pos)
+ {
+ XtConfigureWidget (widget, pos_x, data->scrollbar_pos,
+ width, data->scrollbar_height, 0);
+
+ XtVaSetValues (widget,
+ XtNlength, data->scrollbar_height,
+ XtNthickness, width,
+ 0);
+ }
+
+ /*
+ * Now the size the scrollbar's slider.
+ */
+ new_shown = (float) data->slider_size /
+ (float) (data->maximum - data->minimum);
+
+ new_topOfThumb = (float) (data->slider_position - data->minimum) /
+ (float) (data->maximum - data->minimum);
+
+ if (new_shown > 1.0)
+ new_shown = 1.0;
+ if (new_shown < 0)
+ new_shown = 0;
+
+ if (new_topOfThumb > 1.0)
+ new_topOfThumb = 1.0;
+ if (new_topOfThumb < 0)
+ new_topOfThumb = 0;
+
+ if (new_shown != widget_shown || new_topOfThumb != widget_topOfThumb)
+ XawScrollbarSetThumb (widget, new_topOfThumb, new_shown);
+ }
+#endif
+}
+
+void
+xaw_update_one_widget (widget_instance *instance, Widget widget,
+ widget_value *val, Boolean deep_p)
+{
+ if (XtIsSubclass (widget, scrollbarWidgetClass))
+ {
+ xaw_update_scrollbar (instance, widget, val);
+ }
+ else if (XtIsSubclass (widget, dialogWidgetClass))
+ {
+ XtVaSetValues (widget, XtNlabel, val->contents->value, 0);
+ }
+ else if (XtIsSubclass (widget, commandWidgetClass))
+ {
+ Dimension bw = 0;
+ XtVaGetValues (widget, XtNborderWidth, &bw, 0);
+ if (bw == 0)
+ /* Don't let buttons end up with 0 borderwidth, that's ugly...
+ Yeah, all this should really be done through app-defaults files
+ or fallback resources, but that's a whole different can of worms
+ that I don't feel like opening right now. Making Athena widgets
+ not look like shit is just entirely too much work.
+ */
+ XtVaSetValues (widget, XtNborderWidth, 1, 0);
+
+ XtVaSetValues (widget,
+ XtNlabel, val->value,
+ XtNsensitive, val->enabled,
+ /* Force centered button text. Se above. */
+ XtNjustify, XtJustifyCenter,
+ 0);
+
+ XtRemoveAllCallbacks (widget, XtNcallback);
+ XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
+ }
+}
+
+void
+xaw_update_one_value (widget_instance *instance, Widget widget,
+ widget_value *val)
+{
+ /* This function is not used by the scrollbars and those are the only
+ Athena widget implemented at the moment so do nothing. */
+ return;
+}
+
+void
+xaw_destroy_instance (widget_instance *instance)
+{
+ if (XtIsSubclass (instance->widget, dialogWidgetClass))
+ /* Need to destroy the Shell too. */
+ XtDestroyWidget (XtParent (instance->widget));
+ else
+ XtDestroyWidget (instance->widget);
+}
+
+void
+xaw_popup_menu (Widget widget)
+{
+ /* An Athena menubar has not been implemented. */
+ return;
+}
+
+void
+xaw_pop_instance (widget_instance *instance, Boolean up)
+{
+ Widget widget = instance->widget;
+
+ if (up)
+ {
+ if (XtIsSubclass (widget, dialogWidgetClass))
+ {
+ /* For dialogs, we need to call XtPopup on the parent instead
+ of calling XtManageChild on the widget.
+ Also we need to hack the shell's WM_PROTOCOLS to get it to
+ understand what the close box is supposed to do!!
+ */
+ Display *dpy = XtDisplay (widget);
+ Widget shell = XtParent (widget);
+ Atom props [2];
+ int i = 0;
+ props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
+ XChangeProperty (dpy, XtWindow (shell),
+ XInternAtom (dpy, "WM_PROTOCOLS", False),
+ XA_ATOM, 32, PropModeAppend,
+ (unsigned char *) props, i);
+
+ /* Center the widget in its parent. Why isn't this kind of crap
+ done automatically? I thought toolkits were supposed to make
+ life easier?
+ */
+ {
+ int x, y, w, h;
+ Widget topmost = instance->parent;
+ w = shell->core.width;
+ h = shell->core.height;
+ while (topmost->core.parent && XtIsRealized (topmost->core.parent))
+ topmost = topmost->core.parent;
+ if (topmost->core.width < w) x = topmost->core.x;
+ else x = topmost->core.x + ((topmost->core.width - w) / 2);
+ if (topmost->core.height < h) y = topmost->core.y;
+ else y = topmost->core.y + ((topmost->core.height - h) / 2);
+ XtMoveWidget (shell, x, y);
+ }
+
+ /* Finally, pop it up. */
+ XtPopup (shell, XtGrabNonexclusive);
+ }
+ else
+ XtManageChild (widget);
+ }
+ else
+ {
+ if (XtIsSubclass (widget, dialogWidgetClass))
+ XtUnmanageChild (XtParent (widget));
+ else
+ XtUnmanageChild (widget);
+ }
+}
+
+\f
+/* Dialog boxes */
+
+static char overrideTrans[] =
+ "<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
+static void wm_delete_window();
+static XtActionsRec xaw_actions [] = {
+ {"lwlib_delete_dialog", wm_delete_window}
+};
+static Boolean actions_initted = False;
+
+static Widget
+make_dialog (char* name, Widget parent, Boolean pop_up_p,
+ char* shell_title, char* icon_name, Boolean text_input_slot,
+ Boolean radio_box, Boolean list,
+ int left_buttons, int right_buttons)
+{
+ Arg av [20];
+ int ac = 0;
+ int i, bc;
+ char button_name [255];
+ Widget shell;
+ Widget dialog;
+ Widget button;
+ XtTranslations override;
+
+ if (! pop_up_p) abort (); /* not implemented */
+ if (text_input_slot) abort (); /* not implemented */
+ if (radio_box) abort (); /* not implemented */
+ if (list) abort (); /* not implemented */
+
+ if (! actions_initted)
+ {
+ XtAppContext app = XtWidgetToApplicationContext (parent);
+ XtAppAddActions (app, xaw_actions,
+ sizeof (xaw_actions) / sizeof (xaw_actions[0]));
+ actions_initted = True;
+ }
+
+ override = XtParseTranslationTable (overrideTrans);
+
+ ac = 0;
+ XtSetArg (av[ac], XtNtitle, shell_title); ac++;
+ XtSetArg (av[ac], XtNallowShellResize, True); ac++;
+ shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
+ parent, av, ac);
+ XtOverrideTranslations (shell, override);
+
+ ac = 0;
+ dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
+
+ bc = 0;
+ button = 0;
+ for (i = 0; i < left_buttons; i++)
+ {
+ ac = 0;
+ XtSetArg (av [ac], XtNfromHoriz, button); ac++;
+ XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
+ XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
+ XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNresizable, True); ac++;
+ sprintf (button_name, "button%d", ++bc);
+ button = XtCreateManagedWidget (button_name, commandWidgetClass,
+ dialog, av, ac);
+ }
+ if (right_buttons)
+ {
+ /* Create a separator
+
+ I want the separator to take up the slack between the buttons on
+ the right and the buttons on the left (that is I want the buttons
+ after the separator to be packed against the right edge of the
+ window) but I can't seem to make it do it.
+ */
+ ac = 0;
+ XtSetArg (av [ac], XtNfromHoriz, button); ac++;
+/* XtSetArg (av [ac], XtNfromVert, XtNameToWidget (dialog, "label")); ac++; */
+ XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
+ XtSetArg (av [ac], XtNright, XtChainRight); ac++;
+ XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNlabel, ""); ac++;
+ XtSetArg (av [ac], XtNwidth, 30); ac++; /* #### aaack!! */
+ XtSetArg (av [ac], XtNborderWidth, 0); ac++;
+ XtSetArg (av [ac], XtNshapeStyle, XmuShapeRectangle); ac++;
+ XtSetArg (av [ac], XtNresizable, False); ac++;
+ XtSetArg (av [ac], XtNsensitive, False); ac++;
+ button = XtCreateManagedWidget ("separator",
+ /* labelWidgetClass, */
+ /* This has to be Command to fake out
+ the Dialog widget... */
+ commandWidgetClass,
+ dialog, av, ac);
+ }
+ for (i = 0; i < right_buttons; i++)
+ {
+ ac = 0;
+ XtSetArg (av [ac], XtNfromHoriz, button); ac++;
+ XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
+ XtSetArg (av [ac], XtNright, XtChainRight); ac++;
+ XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
+ XtSetArg (av [ac], XtNresizable, True); ac++;
+ sprintf (button_name, "button%d", ++bc);
+ button = XtCreateManagedWidget (button_name, commandWidgetClass,
+ dialog, av, ac);
+ }
+
+ return dialog;
+}
+
+Widget
+xaw_create_dialog (widget_instance* instance)
+{
+ char *name = instance->info->type;
+ Widget parent = instance->parent;
+ Widget widget;
+ Boolean pop_up_p = instance->pop_up_p;
+ char *shell_name = 0;
+ char *icon_name;
+ Boolean text_input_slot = False;
+ Boolean radio_box = False;
+ Boolean list = False;
+ int total_buttons;
+ int left_buttons = 0;
+ int right_buttons = 1;
+
+ switch (name [0]) {
+ case 'E': case 'e':
+ icon_name = "dbox-error";
+ shell_name = "Error";
+ break;
+
+ case 'I': case 'i':
+ icon_name = "dbox-info";
+ shell_name = "Information";
+ break;
+
+ case 'L': case 'l':
+ list = True;
+ icon_name = "dbox-question";
+ shell_name = "Prompt";
+ break;
+
+ case 'P': case 'p':
+ text_input_slot = True;
+ icon_name = "dbox-question";
+ shell_name = "Prompt";
+ break;
+
+ case 'Q': case 'q':
+ icon_name = "dbox-question";
+ shell_name = "Question";
+ break;
+ }
+
+ total_buttons = name [1] - '0';
+
+ if (name [3] == 'T' || name [3] == 't')
+ {
+ text_input_slot = False;
+ radio_box = True;
+ }
+ else if (name [3])
+ right_buttons = name [4] - '0';
+
+ left_buttons = total_buttons - right_buttons;
+
+ widget = make_dialog (name, parent, pop_up_p,
+ shell_name, icon_name, text_input_slot, radio_box,
+ list, left_buttons, right_buttons);
+
+ return widget;
+}
+
+
+static void
+xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
+{
+ widget_instance *instance = (widget_instance *) closure;
+ Widget instance_widget;
+ LWLIB_ID id;
+ XtPointer user_data;
+
+ lw_internal_update_other_instances (widget, closure, call_data);
+
+ if (! instance)
+ return;
+ if (widget->core.being_destroyed)
+ return;
+
+ instance_widget = instance->widget;
+ if (!instance_widget)
+ return;
+
+ id = instance->info->id;
+
+#if 0
+ user_data = NULL;
+ XtVaGetValues (widget, XtNuserData, &user_data, 0);
+#else
+ /* Damn! Athena doesn't give us a way to hang our own data on the
+ buttons, so we have to go find it... I guess this assumes that
+ all instances of a button have the same call data. */
+ {
+ widget_value *val = instance->info->val->contents;
+ char *name = XtName (widget);
+ while (val)
+ {
+ if (val->name && !strcmp (val->name, name))
+ break;
+ val = val->next;
+ }
+ if (! val) abort ();
+ user_data = val->call_data;
+ }
+#endif
+
+ if (instance->info->selection_cb)
+ instance->info->selection_cb (widget, id, user_data);
+}
+
+static void
+wm_delete_window (Widget shell, XtPointer closure, XtPointer call_data)
+{
+ LWLIB_ID id;
+ Widget *kids = 0;
+ Widget widget;
+ if (! XtIsSubclass (shell, shellWidgetClass))
+ abort ();
+ XtVaGetValues (shell, XtNchildren, &kids, 0);
+ if (!kids || !*kids)
+ abort ();
+ widget = kids [0];
+ if (! XtIsSubclass (widget, dialogWidgetClass))
+ abort ();
+ id = lw_get_widget_id (widget);
+ if (! id) abort ();
+
+ {
+ widget_info *info = lw_get_widget_info (id);
+ if (! info) abort ();
+ if (info->selection_cb)
+ info->selection_cb (widget, id, (XtPointer) -1);
+ }
+
+ lw_destroy_all_widgets (id);
+}
+
+\f
+/* Scrollbars */
+
+static void
+xaw_scrollbar_scroll (Widget widget, XtPointer closure, XtPointer call_data)
+{
+#if 0
+ widget_instance *instance = (widget_instance *) closure;
+ LWLIB_ID id;
+ scroll_event event_data;
+
+ if (!instance || widget->core.being_destroyed)
+ return;
+
+ id = instance->info->id;
+ event_data.slider_value = 0;
+ event_data.time = 0;
+
+ if ((int) call_data > 0)
+ event_data.action = SCROLLBAR_PAGE_DOWN;
+ else
+ event_data.action = SCROLLBAR_PAGE_UP;
+
+ if (instance->info->pre_activate_cb)
+ instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
+#endif
+}
+
+static void
+xaw_scrollbar_jump (Widget widget, XtPointer closure, XtPointer call_data)
+{
+#if 0
+ widget_instance *instance = (widget_instance *) closure;
+ LWLIB_ID id;
+ scroll_event event_data;
+ scrollbar_values *val =
+ (scrollbar_values *) instance->info->val->scrollbar_data;
+ float percent;
+
+ if (!instance || widget->core.being_destroyed)
+ return;
+
+ id = instance->info->id;
+
+ percent = * (float *) call_data;
+ event_data.slider_value =
+ (int) (percent * (float) (val->maximum - val->minimum)) + val->minimum;
+
+ event_data.time = 0;
+ event_data.action = SCROLLBAR_DRAG;
+
+ if (instance->info->pre_activate_cb)
+ instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
+#endif
+}
+
+static Widget
+xaw_create_scrollbar (widget_instance *instance)
+{
+#if 0
+ Arg av[20];
+ int ac = 0;
+ Dimension width;
+ Widget scrollbar;
+
+ XtVaGetValues (instance->parent, XtNwidth, &width, 0);
+
+ XtSetArg (av[ac], XtNshowGrip, 0); ac++;
+ XtSetArg (av[ac], XtNresizeToPreferred, 1); ac++;
+ XtSetArg (av[ac], XtNallowResize, True); ac++;
+ XtSetArg (av[ac], XtNskipAdjust, True); ac++;
+ XtSetArg (av[ac], XtNwidth, width); ac++;
+ XtSetArg (av[ac], XtNmappedWhenManaged, True); ac++;
+
+ scrollbar =
+ XtCreateWidget (instance->info->name, scrollbarWidgetClass,
+ instance->parent, av, ac);
+
+ /* We have to force the border width to be 0 otherwise the
+ geometry manager likes to start looping for awhile... */
+ XtVaSetValues (scrollbar, XtNborderWidth, 0, 0);
+
+ XtRemoveAllCallbacks (scrollbar, "jumpProc");
+ XtRemoveAllCallbacks (scrollbar, "scrollProc");
+
+ XtAddCallback (scrollbar, "jumpProc", xaw_scrollbar_jump,
+ (XtPointer) instance);
+ XtAddCallback (scrollbar, "scrollProc", xaw_scrollbar_scroll,
+ (XtPointer) instance);
+
+ return scrollbar;
+#endif
+}
+
+widget_creation_entry
+xaw_creation_table [] =
+{
+ {"scrollbar", xaw_create_scrollbar},
+ {NULL, NULL}
+};
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