home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
C/C++ Users Group Library 1996 July
/
C-C++ Users Group Library July 1996.iso
/
vol_300
/
337_01
/
hlp_menu.c
< prev
next >
Wrap
C/C++ Source or Header
|
1991-01-12
|
6KB
|
281 lines
/* Copyright (c) James L. Pinson 1990,1991 */
/********************** HLP_MENU.C ***************************/
/*
link with:
makehelp.c
hlp_io.c
*/
#include "mydef.h"
#include "help.h"
#include <stdio.h>
#if defined QUICKC
#include <malloc.h>
#include <memory.h>
#endif
#if defined TURBOC
#include <alloc.h>
#include <mem.h>
#include <string.h>
#include <stdlib.h>
#endif
/* these functions create the menus used by makehelp.c */
void main_menu(void) /* the main menu */
{
extern struct screen_structure scr;
extern struct window_structure w[];
struct bar_struc main_menu [5]={
"Browse" ,"",browse,0,
"Add" ,"",add,0,
"New-file" ,"",file,0,
"Quit","",NULL,1,
"\0"
};
status(0);
bar_menu(main_menu,scr.inverse,scr.normal);
};
int browse(void) /* page browsing menu */
{
extern struct hlp help;
extern struct screen_structure scr;
extern struct window_structure w[];
int current_page=0;
int done=FALSE;
int last_load;
int ret_code;
struct bar_struc browse_menu [5]={
"Next " , "", NULL,1,
" Previous ", "", NULL,2,
" Edit " , "", NULL,3,
"Quit ", "", NULL,4,
"\0"
};
if (help.number_pages==0) return(0);
while(!done){
alt_screen(ON);
win_pop_top(help.edit);
scr.current=win_what_attr(help.edit);
load_page(current_page);
status(current_page+1);
win_pop_top(2);
alt_screen(OFF);
ret_code=bar_menu(browse_menu,scr.inverse,scr.normal);
switch(ret_code){
case 0: break;
case 1: current_page++;break;
case 2: current_page--;break;
case 3: cls(); win_pop_top(help.edit);
for(;;){
/* get edit window attribute */
scr.current=win_what_attr(help.edit);
edit(1,1); /* edit window */
/* pop up the menu and status windows*/
win_pop_top(help.status);
win_pop_top(help.menu);
ret_code=verify_save();
if (ret_code==0)break;
if(ret_code==1){
save_page(current_page);
break;
}
if(ret_code==2)win_pop_top(help.edit);
if(ret_code==3) break;
}/* end for(;;) */
break;
case 4: done=TRUE;
} /* end switch */
if (current_page==help.number_pages)
current_page=help.number_pages-1;
if (current_page<0)current_page=0;
} /* end while(!done) */
win_cls(help.edit);win_redraw_all();
status(0); /* update status window */
return(0);
}
int file(void) /* get the name of a new help file */
{
extern struct hlp help;
extern struct screen_structure scr;
extern struct window_structure w[];
char old_name[80];
strcpy(old_name,help.filename);
get_name(help.filename);
if((strcmp(old_name,help.filename))!=0){
/* delete old edit window, create new one */
win_delete(help.edit);
help.edit= win_make(2,3,help.width,help.height,STD_FRAME,
"Edit: Then 'Esc' ",scr.normal,scr.normal);
win_cls(help.status); /* clear status window */
status(0); /* create new one */
}
return(0);
}
int verify_save(void) /* verify the user wants to save the page */
{
extern struct hlp help;
extern struct screen_structure scr;
extern struct window_structure w[];
int return_code;
/* no function pointers, we want return codes only */
struct bar_struc main_menu [4]={
"Save", "", NULL,1,
"Edit", "", NULL,2,
"Quit" , "", NULL,3,
"\0"
};
return(bar_menu(main_menu,scr.inverse,scr.normal));
}
int add(void) /* add a new help page */
{
extern struct hlp help;
extern struct screen_structure scr;
extern struct window_structure w[];
int done=FALSE;
char *ptr=NULL;
char *temp;
char far *scrn_ptr;
char ch;
int i,j;
int return_code;
cls();
win_pop_top(help.edit);
scr.current=win_what_attr(help.edit);
/* allocate space, allow for \0 terminator */
ptr=(char *)malloc ((help.width*help.height)*sizeof(char));
status(help.number_pages+1);
win_pop_top(help.edit);
edit(1,1);
while(!done){
status(help.number_pages+1);
win_pop_top(help.menu);
return_code=verify_save(); /* save file?*/
if ( return_code==1){ /* save help page to file */
win_pop_top(help.edit);
/* scan the help window for characters */
temp=ptr; /* set temp pointer = pointer */
for(i=0;i<help.height;i++){ /* get each row */
scrn_ptr=(char far *)(scr.buffer+(scr.top+i-1)*
(scr.columns*2)+2*(scr.left-1));
for(j=0;j<help.width;j++){
*temp=*scrn_ptr;
temp++;scrn_ptr+=2;
}
}
/* save image to file */
append(help.filename,ptr,(help.width*help.height*
sizeof(char)));
help.number_pages++;
ch=' ';
status(help.number_pages+1);
win_pop_top(help.menu);
ceol(1,1);
print(1,1, "Add another page ");
scr.bold_caps=TRUE;
print_here("Y/N? ");
scr.bold_caps=FALSE;
while(ch != 'Y' && ch !='N'){
ch=toupper(getch());
}
if(ch=='N') done=TRUE;
else{ /* edit a new page */
cls();
win_pop_top(help.edit);
cls();
edit(1,1);
}
} /* end return code==1 */
if(return_code==2) {
win_pop_top(help.edit);
edit(1,1);
}
if(return_code==3){
done=TRUE;
}
} /* end while !done */
if(ptr!=NULL)free(ptr);
win_cls(help.menu);
win_cls(help.edit);
win_redraw_all(); status(0); return(0);
}
void status(page) /* display the status line */
{
extern struct hlp help;
extern struct screen_structure scr;
extern struct window_structure w[];
char string[20];
win_pop_top(help.status);
ceol(1,1);
scr.current=win_what_attr(help.status);
print(1,1,help.filename);
sprintf(string,"Page %3i of %d",page,help.number_pages);
if(page>help.number_pages)
strcpy(string,"NEW-PAGE");
print(60,1,string);
win_pop_top(help.menu);
}