void position_cursor( HELP_WINDOW *hw, int len, int *un, int *cc, int *ch )
{
int col, row, y, yy;
col = hw->ulft_col + hw->dply_col;
row = hw->ulft_row + hw->dply_row + hw->v_row;
y = hw->ulft_row + hw->dply_row;
yy = hw->ulft_row + hw->dply_row + hw->avail_lines - 1;
*un = FALSE;
switch (*ch) {
case UP :
if (hw->v_row > 0 && hw->select > 0) {
hlight_line( col, row, len, NORMAL );
--hw->v_row;
--hw->select;
*cc = TRUE;
} else if (hw->v_row == 0 && hw->select > 0) {
hlight_line( col, row, len, NORMAL );
--hw->select;
scroll_window( -1, y, col, yy+1, col+hw->line_length, NORMAL );
*un = TRUE;
*cc = TRUE;
}
break;
case DOWN :
if (hw->v_row < hw->avail_lines-1 &&
hw->select < hw->num_entries-1) {
hlight_line( col, row, len, NORMAL );
++hw->v_row;
++hw->select;
*cc = TRUE;
} else if (hw->v_row == hw->avail_lines-1 &&
hw->select < hw->num_entries-1) {
hlight_line( col, row, len, NORMAL );
++hw->select;
scroll_window( 1, y, col, yy, col+hw->line_length, NORMAL );
*un = TRUE;
*cc = TRUE;
} else if (hw->select == hw->num_entries - 1 && hw->v_row > 0) {
--hw->v_row;
scroll_window(1, y, col, yy, col+hw->line_length, NORMAL );
}
break;
}
}
/*
* Name: select_file
* Purpose: To let user select a file from dir list
* Date: February 13, 1992
* Passed: flist: pointer to list of files
* stem: base directory
* dir: directory display stuff
* Notes: let user move thru the file names with the cursor keys
*/
int select_file( FTYPE *flist, char *stem, DIRECTORY *dir )
{
int ch; /* input character from user */
int func; /* function of character input by user */
int fno; /* index into flist of the file under cursor */
int goodkey; /* is key a recognized function key? */
int r; /* current row of cursor */
int c; /* current column of cursor */
int offset; /* offset into file list */
int stop; /* stop indicator */
int stem_len; /* stem length */
int color; /* color of help screen */
int file_color; /* color of current file */
int change; /* boolean, hilite another file? */
int oldr; /* old row */
int oldc; /* old column */
char asize[20]; /* ascii file size */
char blank[20]; /* blank out file names */
/*
* initial everything.
*/
memset( blank, ' ', 12 );
blank[12] = '\0';
c = r = 1;
ch = fno = offset = 0;
color = g_display.help_color;
file_color = g_display.hilited_file;
goodkey = TRUE;
stop = FALSE;
stem_len = strlen( stem );
s_output( stem, dir->row+1, dir->col+19, color );
s_output( flist[fno].fname, dir->row+1, dir->col+19+stem_len, color );
ltoa( flist[fno].fsize, asize, 10 );
s_output( blank, dir->row+2, dir->col+19, color );
s_output( asize, dir->row+2, dir->col+19, color );
itoa( dir->cnt, asize, 10 );
s_output( blank, dir->row+2, dir->col+57, color );
s_output( asize, dir->row+2, dir->col+57, color );
xygoto( (c-1)*14+dir->col+2, r+dir->row+3 );
hlight_line( (c-1)*14+dir->col+2, r+dir->row+3, 12, file_color );
change = FALSE;
while (stop == FALSE) {
oldr = r;
oldc = c;
ch = getkey( );
func = getfunc( ch );
/*
* User may have redefined the Enter and ESC keys. Make the Enter key
* perform a Rturn in this function. Make the ESC key do an AbortCommand.
*/
if (ch == RTURN)
func = Rturn;
else if (ch == ESC)
func = AbortCommand;
switch (func) {
case Rturn :
case NextLine :
case BegNextLine :
stop = TRUE;
break;
case AbortCommand :
stop = TRUE;
break;
case LineUp :
if (r > 1) {
change = TRUE;
--r;
} else {
r = dir->lines;
change = TRUE;
if (offset == 0 || c > 1) {
if (c > 1)
--c;
} else if (dir->vcols > 0 && offset > 0 && c == 1) {
/*
* recalculate the dir display stuff.
*/
offset -= dir->lines;
recalculate_dir( dir, flist, offset );
}
}
goodkey = TRUE;
break;
case LineDown :
if (r < dir->prow) {
change = TRUE;
++r;
} else if (r < dir->lines && c != dir->cols) {
change = TRUE;
++r;
} else {
change = TRUE;
r = 1;
if (offset == dir->vcols * dir->lines || c < dir->cols) {
if (c < dir->cols)
++c;
} else if (dir->vcols > 0 && offset < dir->vcols * dir->lines &&
c == dir->cols) {
offset += dir->lines;
recalculate_dir( dir, flist, offset );
}
}
goodkey = TRUE;
break;
case CharLeft :
if (offset == 0 || c > 1) {
if (c > 1) {
change = TRUE;
--c;
}
} else if (dir->vcols > 0 && offset > 0 && c == 1) {
change = TRUE;
/*
* recalculate the dir display stuff.
*/
offset -= dir->lines;
recalculate_dir( dir, flist, offset );
}
goodkey = TRUE;
break;
case CharRight :
if (offset == dir->vcols * dir->lines || c < dir->cols) {
if (c < dir->cols) {
change = TRUE;
++c;
if (c == dir->cols) {
if ( r > dir->prow)
r = dir->prow;
}
}
} else if (dir->vcols > 0 && offset < dir->vcols * dir->lines &&
c == dir->cols) {
change = TRUE;
offset += dir->lines;
recalculate_dir( dir, flist, offset );
if (r > dir->prow)
r = dir->prow;
}
goodkey = TRUE;
break;
case BegOfLine :
change = TRUE;
c = r = 1;
goodkey = TRUE;
break;
case EndOfLine :
change = TRUE;
r = dir->prow;
c = dir->cols;
goodkey = TRUE;
break;
case ScreenDown :
change = TRUE;
r = (c == dir->cols) ? r = dir->prow : dir->lines;
goodkey = TRUE;
break;
case ScreenUp :
change = TRUE;
r = 1;
goodkey = TRUE;
break;
default :
break;
}
if (goodkey) {
s_output( blank, dir->row+1, dir->col+19+stem_len, color );
fno = offset + (c-1)*dir->lines + (r-1);
s_output( flist[fno].fname, dir->row+1, dir->col+19+stem_len, color );
ltoa( flist[fno].fsize, asize, 10 );
s_output( blank, dir->row+2, dir->col+19, color );
s_output( asize, dir->row+2, dir->col+19, color );
xygoto( (c-1)*14+dir->col+2, r+dir->row+3 );
goodkey = FALSE;
if (change) {
hlight_line( (oldc-1)*14+dir->col+2, oldr+dir->row+3, 12, color );
hlight_line( (c-1)*14+dir->col+2, r+dir->row+3, 12, file_color );
change = FALSE;
}
}
}
dir->select = fno;
return( func == AbortCommand ? ERROR : OK );
}
void new_assignment_help( HELP_WINDOW *hw, char *help[],
struct screen *help_heading, int *ch )
{
int col, row, i;
int update_name, change_color, draw_page;
save_and_draw( hw, help_heading, &w_ptr );
show_func_list( hw, help );
col = hw->ulft_col + hw->dply_col;
row = hw->ulft_row + hw->dply_row + hw->v_row;
change_color = TRUE;
*ch = 0;
while (*ch!=RTURN && *ch!=ESC) {
draw_page = FALSE;
position_cursor( hw, hw->line_length, &update_name, &change_color, ch );
switch (*ch) {
case PGUP :
if (hw->select > hw->avail_lines-1) {
hw->select = hw->select - hw->avail_lines;
if (hw->v_row > hw->select)
hw->select = hw->v_row;
draw_page = TRUE;
} else if (hw->select - hw->v_row > 0) {
hw->select = hw->v_row;
draw_page = TRUE;
}
break;
case PGDN :
if (hw->select + hw->avail_lines < hw->num_entries) {
hw->select = hw->select + hw->avail_lines;
draw_page = TRUE;
} else if (hw->select + hw->avail_lines - hw->v_row <
hw->num_entries) {
hw->select = hw->num_entries - 1;
draw_page = TRUE;
}
if ((hw->num_entries - 1) - hw->select <
hw->avail_lines && draw_page) {
i = row - hw->v_row;
scroll_window( 0, i, col, i+hw->avail_lines-1,
col+hw->line_length, NORMAL );
}
break;
}
if (draw_page == TRUE) {
show_func_list( hw, help );
update_name = TRUE;
change_color = TRUE;
}
row = hw->ulft_row + hw->dply_row + hw->v_row;
if (update_name)
s_output( help[hw->select], row, col, NORMAL );
if (change_color)
hlight_line( col, row, hw->line_length, cfg.attr );
*ch = getkey( );
change_color = FALSE;
}
window_control( &w_ptr, RESTORE, hw->ulft_col, hw->ulft_row,
hw->total_col, hw->total_row );
if (*ch != RTURN)
*ch = 0;
}
void master_help( HELP_WINDOW *hw, KEY_DEFS *help, struct screen *help_heading,
char *t, int *ch )
{
FILE *fp;
int col, row, i, j;
int update_name, change_color, draw_page;
char str[80];
char *blank = " ";
char temp[20];
HELP_WINDOW hw_k;
xygoto( -1, -1 );
save_and_draw( hw, help_heading, &w_ptr );
show_key_def_list( hw, help );
col = hw->ulft_col + hw->dply_col;
row = hw->ulft_row + hw->dply_row + hw->v_row;
change_color = TRUE;
*ch = 0;
while (*ch!=F3 && *ch != F10 && *ch!=ESC) {
draw_page = FALSE;
position_cursor( hw, hw->line_length, &update_name, &change_color, ch );
switch (*ch) {
case PGUP :
if (hw->select > hw->avail_lines-1) {
hw->select = hw->select - hw->avail_lines;
if (hw->v_row > hw->select)
hw->select = hw->v_row;
draw_page = TRUE;
} else if (hw->select - hw->v_row > 0) {
hw->select = hw->v_row;
draw_page = TRUE;
}
break;
case PGDN :
if (hw->select + hw->avail_lines < hw->num_entries) {
hw->select = hw->select + hw->avail_lines;
draw_page = TRUE;
} else if (hw->select + hw->avail_lines - hw->v_row <
hw->num_entries) {
hw->select = hw->num_entries - 1;
draw_page = TRUE;
}
if ((hw->num_entries - 1) - hw->select <
hw->avail_lines && draw_page) {
i = row - hw->v_row;
scroll_window( 0, i, col, i+hw->avail_lines-1,
col+hw->line_length, NORMAL );
}
break;
case F5 :
hw_k.dply_col = 2;
hw_k.dply_row = 3;
hw_k.line_length = 33;
hw_k.avail_lines = 6;
hw_k.v_row = 0;
hw_k.select = 0;
hw_k.num_entries = NUM_FUNC;
hw_k.ulft_col = 20;
hw_k.ulft_row = row + 1;
if (hw_k.ulft_row > 12)
hw_k.ulft_row = row - 12;
hw_k.total_col = 37;
hw_k.total_row = 12;
new_assignment_help( &hw_k, avail_func, func_head, ch );
if (*ch == RTURN) {
help[hw->select].key[0] = '*';
help[hw->select].func_index = (unsigned char)hw_k.select;
s_output( help[hw->select].key, row, col, cfg.attr );
s_output( " ", row, col+31, cfg.attr );
s_output( avail_func[help[hw->select].func_index],
row, col+31, cfg.attr );
*ch = 0;
}
break;
case F7 :
hw_k.ulft_col = 14;
hw_k.ulft_row = 10;
hw_k.total_col = 52;
hw_k.total_row = 5;
save_and_draw( &hw_k, file_head, &w_ptr );
xygoto( hw_k.ulft_col+28, hw_k.ulft_row+2 );
gets( str );
j = TRUE;
if ((i = access( str, EXIST )) == 0) {
s_output( blank, hw_k.ulft_row+2, hw_k.ulft_col+1, NORMAL );
s_output( "OK to overwrite exiting file (y/n)?",
hw_k.ulft_row+2, hw_k.ulft_col+1, NORMAL );
xygoto( hw_k.ulft_col+38, hw_k.ulft_row+2 );
i = getkey( );
while (i != 'Y' && i != 'y' && i != 'N' && i != 'n')
i = getkey( );
if (i == 'n' || i == 'N')
j = FALSE;
}
xygoto( -1, -1 );
if (j == TRUE && (fp = fopen( str, "w" )) != NULL) {
for (i=0; i<hw->num_entries && j; i++) {
fprintf( fp, " %22s = ", help[i].key+3 );
fprintf( fp, " %s\n", avail_func[help[i].func_index] );
}
fclose( fp );
} else {
s_output( blank, hw_k.ulft_row+2, hw_k.ulft_col+1, NORMAL );
s_output( "Cannot open file. Press any key to contine.",
hw_k.ulft_row+2, hw_k.ulft_col+1, NORMAL );
j = getkey( );
}
window_control( &w_ptr, RESTORE, hw_k.ulft_col, hw_k.ulft_row,
hw_k.total_col, hw_k.total_row );
break;
case F8 :
if ((fp = fopen( "PRN", "a" )) != NULL) {
hw_k.ulft_col = 20;
hw_k.ulft_row = 10;
hw_k.total_col = 42;
hw_k.total_row = 5;
save_and_draw( &hw_k, print_head, &w_ptr );
j = TRUE;
for (i=0; i<hw->num_entries && j; i++) {
itoa( i+1, temp, 10 );
s_output( temp, hw_k.ulft_row+2, hw_k.ulft_col+16, NORMAL );
fprintf( fp, " %22s = ", help[i].key+3 );
fprintf( fp, " %s\n", avail_func[help[i].func_index] );
if (kbhit()) {
j = getkey( );
if (j == ESC)
j = FALSE;
else
j = TRUE;
}
}
fprintf( fp, "\f" );
fclose( fp );
window_control( &w_ptr, RESTORE, hw_k.ulft_col, hw_k.ulft_row,
hw_k.total_col, hw_k.total_row );
}
break;
}
if (draw_page == TRUE) {
show_key_def_list( hw, help );
update_name = TRUE;
change_color = TRUE;
}
row = hw->ulft_row + hw->dply_row + hw->v_row;
if (update_name) {
s_output( help[hw->select].key, row, col, NORMAL );
s_output( avail_func[help[hw->select].func_index], row, col+31,
NORMAL );
}
if (change_color)
hlight_line( col, row, hw->line_length, cfg.attr );
*ch = getkey( );
change_color = FALSE;
}
window_control( &w_ptr, RESTORE, hw->ulft_col, hw->ulft_row,
hw->total_col, hw->total_row );
}