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/* Public Domain Curses */
#include "lppdc.h"
#include <stdlib.h>
#ifdef CHTYPE_LONG
# define PDC_OFFSET 32
#else
# define PDC_OFFSET 8
#endif
/* COLOR_PAIR to attribute encoding table. */
unsigned char *pdc_atrtab = (unsigned char *)NULL;
short curstoreal[16], realtocurs[16] =
{
COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN, COLOR_RED,
COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE, COLOR_BLACK + 8,
COLOR_BLUE + 8, COLOR_GREEN + 8, COLOR_CYAN + 8, COLOR_RED + 8,
COLOR_MAGENTA + 8, COLOR_YELLOW + 8, COLOR_WHITE + 8
};
/* close the physical screen -- may restore the screen to its state
before PDC_scr_open(); miscellaneous cleanup */
void PDC_scr_close(void)
{
PDC_LOG(("PDC_scr_close() - called\n"));
reset_shell_mode();
if (SP->visibility != 1)
curs_set(1);
/* Position cursor to the bottom left of the screen. */
PDC_gotoyx(PDC_get_rows() - 2, 0);
}
void PDC_scr_free(void)
{
if (SP)
free(SP);
if (pdc_atrtab)
free(pdc_atrtab);
pdc_atrtab = (unsigned char *)NULL;
}
/* open the physical screen -- allocate SP, miscellaneous intialization,
and may save the existing screen for later restoration */
int PDC_scr_open(int argc, char **argv)
{
int i;
PDC_LOG(("PDC_scr_open() - called\n"));
SP = calloc(1, sizeof(SCREEN));
pdc_atrtab = calloc(PDC_COLOR_PAIRS * PDC_OFFSET, 1);
if (!SP || !pdc_atrtab)
return ERR;
for (i = 0; i < 16; i++)
curstoreal[realtocurs[i]] = i;
SP->orig_attr = FALSE;
SP->lines = PDC_get_rows();
SP->cols = PDC_get_columns();
#if IS_ENABLED(CONFIG_LP_SPEAKER)
SP->audible = TRUE;
#endif
return OK;
}
/* the core of resize_term() */
int PDC_resize_screen(int nlines, int ncols)
{
PDC_LOG(("PDC_resize_screen() - called. Lines: %d Cols: %d\n",
nlines, ncols));
return ERR;
}
void PDC_reset_prog_mode(void)
{
PDC_LOG(("PDC_reset_prog_mode() - called.\n"));
}
void PDC_reset_shell_mode(void)
{
PDC_LOG(("PDC_reset_shell_mode() - called.\n"));
}
void PDC_restore_screen_mode(int i)
{
}
void PDC_save_screen_mode(int i)
{
}
void PDC_init_pair(short pair, short fg, short bg)
{
unsigned char att, temp_bg;
chtype i;
fg = curstoreal[fg];
bg = curstoreal[bg];
for (i = 0; i < PDC_OFFSET; i++)
{
att = fg | (bg << 4);
if (i & (A_REVERSE >> PDC_ATTR_SHIFT))
att = bg | (fg << 4);
if (i & (A_UNDERLINE >> PDC_ATTR_SHIFT))
att = 1;
if (i & (A_INVIS >> PDC_ATTR_SHIFT))
{
temp_bg = att >> 4;
att = temp_bg << 4 | temp_bg;
}
if (i & (A_BOLD >> PDC_ATTR_SHIFT))
att |= 8;
if (i & (A_BLINK >> PDC_ATTR_SHIFT))
att |= 128;
pdc_atrtab[pair * PDC_OFFSET + i] = att;
}
}
int PDC_pair_content(short pair, short *fg, short *bg)
{
*fg = realtocurs[pdc_atrtab[pair * PDC_OFFSET] & 0x0F];
*bg = realtocurs[(pdc_atrtab[pair * PDC_OFFSET] & 0xF0) >> 4];
return OK;
}
bool PDC_can_change_color(void)
{
return FALSE;
}
int PDC_color_content(short color, short *red, short *green, short *blue)
{
return ERR;
}
int PDC_init_color(short color, short red, short green, short blue)
{
return ERR;
}
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