summaryrefslogtreecommitdiff
path: root/src/user/manual/manual.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/user/manual/manual.c')
-rw-r--r--src/user/manual/manual.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/src/user/manual/manual.c b/src/user/manual/manual.c
deleted file mode 100644
index d1af406..0000000
--- a/src/user/manual/manual.c
+++ /dev/null
@@ -1,303 +0,0 @@
-#include <knob/heap.h>
-#include <knob/file.h>
-#include <knob/block.h>
-#include <knob/format.h>
-#include <pland/syscall.h>
-
-#define ERROR_COLOR _COLOR_BG_LGRAY | _COLOR_FG_RED
-#define UI_COLOR _COLOR_BG_LGRAY | _COLOR_FG_BLACK
-#define DEFAULT_TEXT_COLOR _COLOR_BG_BLACK | _COLOR_FG_WHITE
-
-#define MAN_ROOT "man/"
-#define MRL 4
-#define MAN_EXT "man"
-
-#define MAX_PATH_LEN 255
-
-#define SP80 " "
-#define SP79 " "
-#define SP69 " "
-#define SP10 " "
-
-struct file *cur_file = 0;
-
-char *name_backup = 0;
-
-uint32_t *line_offsets = 0;
-uint32_t n_lines;
-
-struct link {
- uint32_t line;
- uint8_t col;
- uint8_t len;
- char *lto;
-};
-
-struct link *link_table_start = 0;
-struct link *link_table_end;
-
-struct link *cur_link = 0;
-
-uint32_t line_on;
-
-#define DATA_BUF_SIZE 2000
-
-void print_page() {
- uint8_t buf[DATA_BUF_SIZE];//1840 + up to 160 color codes
- seek_file_to(cur_file, line_offsets[line_on]);
- uint8_t *bufp = buf + DATA_BUF_SIZE;
- uint8_t *bufend;
- uint8_t row = 1, col = 0;
-
- _set_color(DEFAULT_TEXT_COLOR);
- while (row != 24) {
- if (bufp == buf + DATA_BUF_SIZE) {
- bufp = buf;
- uint16_t bl = read_from_file(cur_file, DATA_BUF_SIZE, buf);
- bufend = bl == DATA_BUF_SIZE ? 0 : buf + bl;
- }
- if (bufp == bufend) {
- uint32_t *i = buf;
- uint16_t l = 80 - col + (23 - row) * 80;
- uint32_t *e = i + l / 4 + 1;
- while (i != e)
- *(i++) = 0x20202020;
- buf[l] = '\0';
- _print_at(row, col, buf);
- break;
- }
- if (*bufp & 0x80)
- _set_color(*bufp & 0x7f);
- else {
- char bufpb[2] = {*bufp, '\0'};
- _print_at(row, col, bufpb);
- if (++col == 80) {
- col = 0;
- ++row;
- }
- }
- ++bufp;
- }
-
- if (cur_link)
- for (uint8_t c = cur_link->col; c < cur_link->col + cur_link->len; ++c)
- _swap_color(cur_link->line - line_on + 1, c);
-}
-
-void scroll_to(uint32_t n) {
- if (n > n_lines - 23)
- n = n_lines - 23;
-
- if (cur_link && ((cur_link->line < n) || (cur_link->line >= n + 23)))
- cur_link = 0;
-
- line_on = n;
- print_page();
-
- char b[16] = "Line ";
- itosz(line_on, b + 5);
-
- _set_color(UI_COLOR);
- _print_at(24, 0, SP69);
- _print_at(24, 0, b);
-}
-
-void scroll_link() {
- if (cur_link->line < line_on)
- scroll_to(cur_link->line);
- else if (cur_link->line >= line_on + 23)
- scroll_to(cur_link->line - 22);
- else
- print_page();
-}
-
-void load_file(const char *name) {
- static char cur_page[MAX_PATH_LEN + 1] = MAN_ROOT;
- uint32_t name_len = strcpy(cur_page + MRL, name);
- strcpy(cur_page + MRL + name_len, "." MAN_EXT);
-
- struct file *new_file = open_file(cur_page);
- if (!new_file) {
- _set_color(ERROR_COLOR);
- _print_at(24, 0, SP79);
- _print_at(24, 0, "Could not open file.");
- return;
- }
-
- if (name_backup)
- free_block(name_backup);
- name_backup = strdup(name);
-
- if (cur_file)
- close_file(cur_file);
- cur_file = new_file;
-
- uint32_t tlen;
- read_from_file(cur_file, 4, &tlen);
- char title[81];
- read_from_file(cur_file, tlen + 1, title);
-
- _set_color(UI_COLOR);
- _print_at(0, 0, SP80);
- _print_at(0, 0, title);
-
- if (link_table_start) {
- for (struct link *l = link_table_start; l != link_table_end; ++l)
- free_block(l->lto);
- free_block(link_table_start);
- }
-
- uint32_t linktc;
- read_from_file(cur_file, 4, &linktc);
- if (linktc) {
- link_table_start = get_block(sizeof(struct link) * linktc);
- link_table_end = link_table_start + linktc;
- read_from_file(cur_file, 4, &linktc);//dummy
-
- for (struct link *l = link_table_start; l != link_table_end; ++l) {
- read_from_file(cur_file, 4, &l->line);
- read_from_file(cur_file, 1, &l->col);
- read_from_file(cur_file, 1, &l->len);
- uint32_t lto_l;
- read_from_file(cur_file, 4, &lto_l);
- l->lto = get_block(lto_l + 1);
- read_from_file(cur_file, lto_l + 1, l->lto);
- }
- }
- else {
- link_table_start = 0;
- read_from_file(cur_file, 4, &linktc);//dummy
- }
-
- cur_link = 0;
-
- if (line_offsets)
- free_block(line_offsets);
-
- read_from_file(cur_file, 4, &n_lines);
- line_offsets = get_block(n_lines * 4);
- read_from_file(cur_file, n_lines * 4, line_offsets);
-
- char b[11];
- itosz(n_lines, b);
-
- _set_color(UI_COLOR);
- _print_at(24, 69, SP10);
- _print_at(24, 69, b);
-
- scroll_to(0);
-}
-
-struct stack_entry {
- struct stack_entry *down;
- char *name;
- uint32_t line;
-};
-
-struct stack_entry *stack_top = 0;
-
-void push() {
- struct stack_entry *new_entry = get_block(sizeof(struct stack_entry));
- new_entry->down = stack_top;
- new_entry->name = strdup(name_backup);
- new_entry->line = line_on;
- stack_top = new_entry;
-}
-
-void pop() {
- if (stack_top) {
- load_file(stack_top->name);
- scroll_to(stack_top->line);
- free_block(stack_top->name);
- free_block(stack_top);
- stack_top = stack_top->down;
- }
-}
-
-void main() {
- _set_color(UI_COLOR);
- _print_at(24, 79, " ");
-
- load_file("index");
-
- while (true) {
- switch (_get_key()) {
- case 0:
- default:
- _yield_task();
- break;
- case _KEY_UP:
- if (n_lines <= 23)
- break;
- if (line_on)
- scroll_to(line_on - 1);
- break;
- case _KEY_DOWN:
- if (n_lines <= 23)
- break;
- if (line_on < n_lines - 23)
- scroll_to(line_on + 1);
- break;
- case _KEY_PUP:
- if (n_lines <= 23)
- break;
- scroll_to(line_on <= 22 ? 0 : line_on - 22);
- break;
- case _KEY_PDOWN:
- if (n_lines <= 23)
- break;
- scroll_to(line_on + 22);
- break;
- case _KEY_LEFT:
- if (cur_link == link_table_start)
- break;
- if (cur_link) {
- --cur_link;
- scroll_link();
- }
- else if (link_table_start) {
- struct link *l = link_table_end;
- while (l != link_table_start) {
- --l;
- if (l->line <= line_on + 22)
- break;
- }
- cur_link = l;
- scroll_link();
- }
- break;
- case _KEY_RIGHT:
- if (cur_link == link_table_end - 1)
- break;
- if (cur_link) {
- ++cur_link;
- scroll_link();
- }
- else if (link_table_start) {
- struct link *l = link_table_start;
- while (l != link_table_end) {
- if (l->line >= line_on)
- break;
- ++l;
- }
- cur_link = l;
- scroll_link();
- }
- break;
- case ' ':
- case '\n':
- case _KEY_NENTER:
- if (cur_link) {
- push();
- load_file(cur_link->lto);
- }
- break;
- case _KEY_ESC:
- if (stack_top)
- pop();
- break;
- case 'q':
- return;
- }
- }
-} \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 20:11:23 +0000