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/**********************************************************************
* xball_sys.c - xball system object definition.
*
* Copyright 1993, David Nedde
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is granted
* provided that the above copyright notice appears in all copies.
* It is provided "as is" without express or implied warranty.
**********************************************************************/
/* System Headers */
#include <X11/StringDefs.h>
#include <X11/Intrinsic.h>
#ifdef MOTIF
#include <Xm/Form.h>
#include <Xm/Label.h>
#endif
#ifdef ATHENA
#include <X11/Xaw/Form.h>
#endif
/* Local headers */
#include "xball_sys.h"
#include "names.h"
#include "misc.h"
/* Creates the xball system. This object holds together the other
objects in the system. */
xball_system_type xball_system__create( w)
Widget w;
{
xball_system_type xball_system;
menu_type menu;
room_type room;
demo_type demo;
help_type help;
sim_type sim;
items_type items;
file_sel_type file_sel;
scrollbar_type gravity_bar;
scrollbar_type elasticity_bar;
Widget form_widget;
typedef struct {
int gravity;
int elasticity;
Boolean ball_collide;
Boolean perpetual;
Boolean halt_sim;
} app_data,*app_data_ptr;
app_data res_data;
static XtResource resources[] = {
{ "gravity", "Gravity", XtRInt, sizeof(int),
XtOffset(app_data_ptr,gravity), XtRImmediate, (caddr_t)GRAVITY },
{ "elasticity", "Elasticity", XtRInt, sizeof(int),
XtOffset(app_data_ptr,elasticity), XtRImmediate,(caddr_t)ELASTICITY },
{ "collide", "Collide", XtRBoolean, sizeof(Boolean),
XtOffset(app_data_ptr,ball_collide), XtRString, "False"},
{ "perpetual", "Perpetual", XtRBoolean, sizeof(Boolean),
XtOffset(app_data_ptr,perpetual), XtRString, "False"},
{ "haltSim", "HaltSim", XtRBoolean, sizeof(Boolean),
XtOffset(app_data_ptr,halt_sim), XtRString, "False"}
};
XtGetApplicationResources(w, (XtPointer)&res_data,
resources, XtNumber(resources),
(ArgList)NULL,(Cardinal)0);
xball_system = XtNew( xball_system_struct);
/* Create the various objects in the system */
#ifdef MOTIF
xball_system->form_w = form_widget =
XtCreateWidget("form", xmFormWidgetClass, w, NULL,0);
#endif
#ifdef ATHENA
xball_system->form_w = form_widget =
XtVaCreateWidget( "formAW", formWidgetClass, w, NULL);
#endif
xball_system->menu = menu = menu__create( form_widget);
xball_system->elasticity_bar = elasticity_bar =
scrollbar__create( form_widget, ELASTICITY_BAR);
xball_system->gravity_bar = gravity_bar =
scrollbar__create( form_widget, GRAVITY_BAR);
item__set_perpetual( menu__get_toggle( menu, PERPETUAL));
item__set_ball_collide( menu__get_toggle( menu, BALL_COLLIDE));
xball_system->file_sel = file_sel = file_sel__create(w);
xball_system->items = items = items__create();
xball_system->room = room = room__create( form_widget, items, file_sel);
xball_system->demo = demo = demo__create(w, menu, gravity_bar,
elasticity_bar, file_sel,
items, room);
xball_system->sim = sim = sim__create(w, menu, items, room, demo);
xball_system->help = help = help__create(w);
XtManageChild( form_widget);
/* Add the scrollbar callbacks and set their values */
scrollbar__add_callback( xball_system->gravity_bar,
room__set_gravity_cb,
(XtPointer)xball_system->room);
scrollbar__set_value( xball_system->gravity_bar, res_data.gravity);
scrollbar__add_callback( xball_system->elasticity_bar,
item__set_elasticity_cb,
(XtPointer)NULL);
scrollbar__set_value( xball_system->elasticity_bar, res_data.elasticity);
/* Register avaliable menu callbacks */
menu__add_callback(menu, "runDemo", demo__run_mcb, demo);
menu__add_callback(menu, "stopDemo", demo__stop_mcb, demo);
menu__add_callback(menu, "clear", room__clear_mcb, room);
menu__add_callback(menu, "randomize", room__randomize_mcb, room);
menu__add_callback(menu, "loadBitmap", room__load_bitmap_mcb, room);
menu__add_callback(menu, "quit", xball_system__quit_mcb, xball_system);
menu__add_callback(menu, "perpetual", item__perpetual_mcb, NULL);
menu__add_callback(menu, "ballCollide", item__collide_mcb, NULL);
menu__add_callback(menu, "haltSim", sim__halt_mcb, sim);
menu__add_callback(menu, "stepSim", sim__step_mcb, sim);
/* Set the values of these menu toggle widgets */
menu__set_toggle( menu, PERPETUAL, res_data.perpetual);
menu__set_toggle( menu, BALL_COLLIDE, res_data.ball_collide);
menu__set_toggle( menu, HALT_SIM, res_data.halt_sim);
menu__add_callback(menu, "about", help__display_mcb, help);
menu__add_callback(menu, "onMenus", help__display_mcb, help);
menu__add_callback(menu, "onScroll", help__display_mcb, help);
menu__add_callback(menu, "onButtons", help__display_mcb, help);
menu__add_callback(menu, "onDemos", help__display_mcb, help);
menu__add_callback(menu, "onParams", help__display_mcb, help);
return xball_system;
}
/* Free the xball system object */
void xball_system__destroy(xball_system)
xball_system_type xball_system;
{
file_sel__destroy( xball_system->file_sel);
help__destroy( xball_system->help);
demo__destroy( xball_system->demo);
room__destroy( xball_system->room);
sim__destroy( xball_system->sim);
items__destroy( xball_system->items);
scrollbar__destroy( xball_system->elasticity_bar);
scrollbar__destroy( xball_system->gravity_bar);
menu__destroy( xball_system->menu);
XtDestroyWidget( xball_system->form_w);
XtFree( (char *)xball_system);
}
/* Called if the user selects the quit menu item */
void xball_system__quit_mcb( w, xball_system, call_data, extra)
Widget w;
xball_system_type xball_system;
caddr_t call_data;
char * extra;
{
XtCloseDisplay(XtDisplay(xball_system->form_w));
exit(EXIT_SUCCESS);
}
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