FantasyPvP
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include "dynstr.h"
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#include <ncurses.h>
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typedef struct {
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int lines;
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int screen_line;
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int screen_col;
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bool editmode;
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String_t* buffer;
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} Editor;
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Editor new_editor() {
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Editor e;
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e.lines = 0;
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e.screen_line = 0;
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e.screen_col = 0;
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e.editmode = false;
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String_t lines = str_from_chars("");
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e.buffer = str_lines(&lines, &e.lines);
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str_dealloc(&lines);
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addstr("");
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return e;
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}
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Editor editor_from(char* input_string) {
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// TODO: fix this function
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Editor e;
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e.lines = 0;
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e.screen_line = 0;
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e.screen_col = 0;
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e.editmode = false;
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String_t lines = str_from_chars(input_string);
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e.buffer = str_lines(&lines, &e.lines);
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str_dealloc(&lines);
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addstr(input_string);
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return e;
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}
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void move_cursor(Editor* self, int x, int y) {
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if (y != 0
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&& self->screen_line + y >= 0
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&& self->screen_line + y <= self->lines)
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{
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self->screen_line += y;
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int line_width = str_len(&self->buffer[self->screen_line]);
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if (self->screen_col > line_width) {
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self->screen_col = line_width;
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}
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} else if (self->screen_col + x < 0) {
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if (self->screen_line - 1 >= 0) {
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self->screen_line -= 1;
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self->screen_col = str_len(&self->buffer[self->screen_line]);
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}
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} else if (self->screen_col + x > str_len(&self->buffer[self->screen_line])) {
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if (self->screen_line + 1 <= self->lines) {
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self->screen_col = 0;
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self->screen_line += 1;
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}
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} else if (x != 0) {
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self->screen_col += x;
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}
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move(self->screen_line, self->screen_col);
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}
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void delchar(Editor* self) {
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str_remove(&self->buffer[self->screen_line], self->screen_col);
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delch();
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}
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void addchar(Editor* self, char c) {
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insch(c);
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// insert the character into the string at the given index
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if (self->screen_line == self->lines) {
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// reallocate self->buffer to be 1 larger
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self->lines++;
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self->buffer = realloc(self->buffer, sizeof(String_t) * (self->lines + 1));
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}
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str_insert(&self->buffer[self->screen_line], self->screen_col, c);
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move_cursor(self, 1, 0);
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}
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String_t* to_string(Editor* self) {
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}
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