staden-lg/src/staden/xmenu.c

106 lines
2.6 KiB
C

/* ---- Includes ---- */
#include "progSpec.h"
#include "userface.h" /* IMPORT: menu_x */
#include "helpnmenu.h" /* IMPORT: createmenu, menuarr */
#include <stdio.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Box.h>
#include <X11/Xaw/MenuButton.h>
#include <X11/Xaw/SimpleMenu.h>
#include <X11/Xaw/Sme.h>
#include <X11/Xaw/SmeBSB.h>
/* ---- Types ---- */
typedef struct
{ String name; /* Name of function */
int number; /* Number of function */
} MenuData, *MenuDataList;
/* ---- Static variables ---- */
static Widget menubarWid = (Widget)NULL; /* Initialised by CreateProgMenus */
static int num_menus = 0;
/* --- Callback functions ---- */
static XtCallbackProc externalCallbackProc;
static XtPointer externalClient_data;
static void MenuSelectCallback(Widget w, XtPointer i, XtPointer junk)
/*
Pass the menu item callback back to `externalCallbackProc'
which the user supplied to `CreateProgMenus'.
*/
{ externalCallbackProc(w, externalClient_data, i);
}
/* ---- Private functions ---- */
static void CreateMenu(Widget parentWid, String menuButtonName,
menuarr *md, int num_md)
{ Widget buttonWid, menuWid;
int i;
/*
Create the (empty) menu button.
*/
buttonWid = XtCreateManagedWidget(menuButtonName, menuButtonWidgetClass,
parentWid, NULL, 0);
menuWid = XtCreatePopupShell("menu", simpleMenuWidgetClass, buttonWid,
NULL, 0);
/*
Put the individual items in.
When selected, each entry will generate a callback with
its associated number.
*/
for (i = 0; i < (int) num_md ; i++) {
/* Don't want help/quit/menus in our X menus */
Widget entryWid;
if (md[i].number < 3)
continue;
entryWid = XtCreateManagedWidget(md[i].name, smeBSBObjectClass,
menuWid, NULL, 0);
XtAddCallback(entryWid, XtNcallback, MenuSelectCallback,
(XtPointer) md[i].number);
}
}
/* ---- Exported functions ---- */
void CreateProgMenus(Widget parentWid,
XtCallbackProc cbp, XtPointer client_data)
/*
Install the menus for this program into `parentWid'.
They are initially all unmanaged.
When pressed, each item (which is the name of a function) will
call `cbp' providing `client_data' and the number of the function
as `call_data'.
*/
{
int i, menulen;
menuarr menu[MAXOPTS];
externalCallbackProc = cbp;
externalClient_data = client_data;
menubarWid = parentWid;
for (i = 1; i<MAXMENUS; i++) {
menulen = create_menu(i, menu, MAXOPTS*sizeof(menuarr));
if (menulen < 3)
break;
CreateMenu(parentWid, (String)(helpindex-i)->name, menu, menulen);
}
num_menus = i;
}