141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
#include "options.h"
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#include "text.h"
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#include "util.h"
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#include "kbd.h"
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#include "qemu.h"
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struct option boot_options[20] = {{0}};
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int sel_max = 0;
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int sel = 0;
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int boot_mode = 0;
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void toggle(int ndx, int value, char *str) {
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set_attr(sel == ndx ? 0x70 : 0x07);
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if (value) {
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print_(" [X] ");
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} else {
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print_(" [ ] ");
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}
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print_(str);
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if (x < 40) {
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while (x < 39) {
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print_(" ");
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}
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x = 40;
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} else {
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print_("\n");
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}
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}
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void show_menu(void) {
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if (detect_qemu()) return;
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/* Determine number of options */
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sel_max = 0;
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while (boot_options[sel_max].value) {
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sel_max++;
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}
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sel_max += base_sel + 1;
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outportb(0x3D4, 14);
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outportb(0x3D5, 0xFF);
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outportb(0x3D4, 15);
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outportb(0x3D5, 0xFF);
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inportb(0x3DA);
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outportb(0x3C0, 0x30);
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char b = inportb(0x3C1);
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b &= ~8;
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outportb(0x3c0, b);
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clear_();
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do {
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move_cursor(0,0);
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set_attr(0x1f);
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print_banner(VERSION_TEXT);
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set_attr(0x07);
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print_("\n");
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for (int i = 0; i < base_sel + 1; ++i) {
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set_attr(sel == i ? 0x70 : 0x07);
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print_(" ");
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char tmp[] = {'0' + (i + 1), '.', ' ', '\0'};
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print_(tmp);
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print_(boot_mode_names[i].title);
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print_("\n");
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}
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// put a gap
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set_attr(0x07);
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print_("\n");
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for (int i = 0; i < sel_max - base_sel - 1; ++i) {
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toggle(base_sel + 1 + i, *boot_options[i].value, boot_options[i].title);
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}
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set_attr(0x07);
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move_cursor(x,17);
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print_("\n");
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print_banner(HELP_TEXT);
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print_("\n");
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if (sel > base_sel) {
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print_banner(boot_options[sel - base_sel - 1].description_1);
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print_banner(boot_options[sel - base_sel - 1].description_2);
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print_("\n");
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} else {
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print_banner(COPYRIGHT_TEXT);
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print_("\n");
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print_banner(LINK_TEXT);
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}
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int s = read_scancode();
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if (s == 0x50) { /* DOWN */
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if (sel > base_sel && sel < sel_max - 1) {
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sel = (sel + 2) % sel_max;
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} else {
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sel = (sel + 1) % sel_max;
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}
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} else if (s == 0x48) { /* UP */
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if (sel > base_sel + 1) {
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sel = (sel_max + sel - 2) % sel_max;
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} else {
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sel = (sel_max + sel - 1) % sel_max;
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}
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} else if (s == 0x4B) { /* LEFT */
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if (sel > base_sel) {
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if ((sel - base_sel) % 2) {
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sel = (sel + 1) % sel_max;
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} else {
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sel -= 1;
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}
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}
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} else if (s == 0x4D) { /* RIGHT */
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if (sel > base_sel) {
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if ((sel - base_sel) % 2) {
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sel = (sel + 1) % sel_max;
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} else {
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sel -= 1;
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}
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}
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} else if (s == 0x1c) {
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if (sel <= base_sel) {
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boot_mode = boot_mode_names[sel].index;
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break;
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} else {
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int index = sel - base_sel - 1;
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*boot_options[index].value = !*boot_options[index].value;
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}
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} else if (s >= 2 && s <= 10) {
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int i = s - 2;
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if (i <= base_sel) {
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boot_mode = boot_mode_names[i].index;
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break;
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}
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}
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} while (1);
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}
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