| /* 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; |
| } |