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/* sunmenus - Low Level Menu Objects for SunView */
/* XLISP-STAT 2.1 Copyright (c) 1990, by Luke Tierney */
/* Additions to Xlisp 2.1, Copyright (c) 1989 by David Michael Betz */
/* You may give out copies of this software; for conditions see the */
/* file COPYING included with this distribution. */
/***********************************************************************/
/** **/
/** General Includes and Definitions **/
/** **/
/***********************************************************************/
#include "xlisp.h"
#include "xlstat.h"
#include "xlgraph.h"
/* external variables */
extern LVAL s_true, s_title, s_items, s_enabled, s_id, s_menu_list, s_key,
s_mark, s_style, s_action, s_menu, s_menu_proto, s_apple_menu_proto,
s_menu_item_proto, sk_select, sk_update, sk_do_action, s_bold, s_italic,
s_underline, s_outline, s_shadow, s_condense, s_extend, sk_enabled,
s_hardware_address, sk_allocate, sk_dispose;
extern char buf[];
/* external functions */
extern LVAL slot_value();
extern IVIEW_MENU get_menu_address();
/***********************************************************************/
/** **/
/** MENU-PROTO Definitions **/
/** **/
/***********************************************************************/
StMObInstalled(m) LVAL m; { return(FALSE); }
/***********************************************************************/
/** **/
/** MENU-PROTO Definitions **/
/** **/
/***********************************************************************/
FORWARD char *get_item_string();
/***********************************************************************/
/** **/
/** Support Function **/
/** **/
/***********************************************************************/
LOCAL LVAL GetMenuList()
{
return(slot_value(getvalue(s_menu_proto), s_menu_list));
}
/* find the position of the item in the menu */
static get_item_position(menu, item)
LVAL menu, item;
{
int i;
LVAL items;
for (items = slot_value(menu, s_items), i = 1;
consp(items) && car(items) != item; i++, items = cdr(items))
;
if (item != car(items)) xlfail("item not in the menu");
return(i);
}
/***********************************************************************/
/** **/
/** Menu Functions **/
/** **/
/***********************************************************************/
/* remove item from a suntools menu */
StMObDeleteItem(menu, item)
LVAL menu, item;
{
if (StMObAllocated(menu))
menu_set(get_menu_address(menu), MENU_REMOVE, get_item_position(menu, item),
0);
}
StMObRemove() {}
StMObInstall() {}
/* dispose of a suntools menu */
StMObDisposeMach(menu)
LVAL menu;
{
if (StMObAllocated(menu)) menu_destroy(get_menu_address(menu));
}
StMObEnable() {}
/* allocate a suntools internal menu */
StMObAllocateMach(menu)
LVAL menu;
{
IVIEW_MENU theMenu;
theMenu = menu_create(0);
if (theMenu == NULL) xlfail("menu allocation failed");
set_menu_address(theMenu, menu);
}
/* add items to a suntools internal menu */
StMObAppendItems(menu, items)
LVAL menu, items;
{
LVAL item;
char *s;
int i;
IVIEW_MENU theMenu;
Menu_item menu_item;
if (StMObAllocated(menu)) {
theMenu = get_menu_address(menu);
i = llength(slot_value(menu, s_items)) - llength(items);
if (i < 0) xlfail("append list should not exceed item list");
for (; consp(items); items = cdr(items), i++) {
item = car(items);
s = get_item_string(item);
menu_set(theMenu, MENU_STRING_ITEM, s, i + 1, 0);
if (slot_value(item, s_enabled) == NIL) {
menu_item = menu_get(theMenu, MENU_NTH_ITEM, i + 1);
menu_set(menu_item, MENU_INACTIVE, TRUE, 0);
}
}
}
}
static Menu popup_menu;
static int popup_item;
extern Event *mouse_event;
extern Window mouse_window;
static mouse_action(win, event, arg)
Window win;
Event *event;
caddr_t arg;
{
if (event_is_down(event) && event_id(event) == MS_RIGHT) {
popup_item = (int) menu_show(popup_menu, win, event, 0);
window_set(win, WIN_EVENT_PROC, NULL, 0);
window_return(0);
}
}
StMObPopup(menu,x, y, window)
LVAL menu, window;
int x, y;
{
Frame message_frame;
Panel panel;
Panel_item message_item;
int left, top, width, height;
Rect *mr;
StSunReleaseButton();
send_message(menu, sk_update);
send_message(menu, sk_allocate);
popup_menu = get_menu_address(menu);
if (mouse_event != NULL && mouse_window != NULL) {
if (event_is_down(mouse_event)) {
popup_item = (int) menu_show(popup_menu, mouse_window, mouse_event, 0);
}
}
else {
message_frame = window_create(NULL, FRAME, FRAME_SHOW_LABEL, FALSE, 0);
panel = window_create(message_frame, PANEL, WIN_EVENT_PROC,
mouse_action, 0);
message_item = panel_create_item(panel, PANEL_MESSAGE, PANEL_LABEL_STRING,
"Click right button", 0);
window_fit(panel);
window_fit(message_frame);
/* center the message_frame frame on the screen */
mr = (Rect *) window_get(message_frame, WIN_SCREEN_RECT);
width = (int) window_get(message_frame, WIN_WIDTH);
height = (int) window_get(message_frame, WIN_HEIGHT);
left = (mr->r_width - width) / 2;
top = (mr->r_height - height) / 2;
if (left < 0) left = 0;
if (top < 0) top = 0;
window_set(message_frame, WIN_X, left, WIN_Y, top, 0);
window_loop(message_frame);
window_set(message_frame, FRAME_NO_CONFIRM, TRUE, 0);
window_destroy(message_frame);
}
send_message(menu, sk_dispose);
return(popup_item);
}
/***********************************************************************/
/** **/
/** Menu Item Functions **/
/** **/
/***********************************************************************/
/* get the item's title string */
static char *get_item_string(item)
LVAL item;
{
LVAL title;
if (! menu_item_p(item)) xlerror("not a menu item", item);
title = slot_value(item, s_title);
if (! stringp(title)) xlerror("title is not a string", title);
return((char *) getstring(title));
}
/* adjust internal implementation of allocated menu to new instance value */
StMObSetItemProp(item, which)
LVAL item;
int which;
{
char *s, ch;
IVIEW_MENU theMenu;
LVAL menu;
Menu_item menu_item;
int i;
menu = slot_value(item, s_menu);
if (menu != NIL && StMObAllocated(menu)) {
theMenu = get_menu_address(menu);
i = get_item_position(menu, item);
menu_item = menu_get(theMenu, MENU_NTH_ITEM, i);
switch (which) {
case 'T': {
LVAL title = slot_value(item, s_title);
if (! stringp(title))
xlerror("title is not a string", title);
s = (char *) getstring(title);
menu_set(menu_item, MENU_STRING, s, 0);
break;
}
case 'K': /* not implemented */ break;
case 'M': /* not implemented */ break;
case 'S': /* not implemented */ break;
case 'A': break;
case 'E': if (slot_value(item, s_enabled) != NIL)
menu_set(menu_item, MENU_INACTIVE, FALSE, 0);
else menu_set(menu_item, MENU_INACTIVE, TRUE, 0);
break;
default: xlfail("unknown item instance variable");
}
}
}
sun_show_menu(w, event)
char *w;
char *event;
{
LVAL object, menu;
int item;
IVIEW_MENU m;
object = IViewWindowGetObject(w);
menu = slot_value(object, s_menu);
if (menu_p(menu)) {
item = StMObPopup(menu, event_x(event), event_y(event), NIL);
if (item > 0) send_message1(menu, sk_select, item);
}
}
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