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implements line splitting

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SuperNovaa41 2025-01-15 19:46:59 -05:00
parent f0782d41a9
commit 16913585f4
1 changed files with 20 additions and 4 deletions
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24
src/draw.c
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@ -47,22 +47,38 @@ void refresh_screen(void)
void draw_file_buffer(void) void draw_file_buffer(void)
{ {
size_t i; size_t i, idx;
size_t tmp_len; size_t tmp_len;
char* working_line; char tmp_line[editor.screen_cols + 2];
char* tmp_line;
// reserve the last line for info // reserve the last line for info
for (i = editor.row_offset; i < editor.num_rows && i < (editor.screen_rows + editor.row_offset - 1); i++) { for (i = editor.row_offset; i < editor.num_rows && i < (editor.screen_rows + editor.row_offset - 1); i++) {
if (editor.rows[i].len <= editor.screen_cols) { if (editor.rows[i].len <= editor.screen_cols) {
screen_buffer_append(CLEAR_LINE_STR, CLEAR_LINE_STR_LEN); // clear line first to prevent flickering issues screen_buffer_append(CLEAR_LINE_STR, CLEAR_LINE_STR_LEN); // clear line first to prevent flickering issues
screen_buffer_append(editor.rows[i].line, editor.rows[i].len); screen_buffer_append(editor.rows[i].line, editor.rows[i].len);
continue;
} }
// want to do line splitting here // want to do line splitting here
// mimick vim in which we split the overflow line to the next below // mimick vim in which we split the overflow line to the next below
tmp_len = editor.rows[i].len;
idx = 0;
while (tmp_len > editor.screen_cols) {
strncpy(tmp_line, &(editor.rows[i].line)[idx], editor.screen_cols);
tmp_line[editor.screen_cols] = '\n';
tmp_line[editor.screen_cols + 1] = '\0';
screen_buffer_append(tmp_line, editor.screen_cols + 2);
idx += editor.screen_cols;
tmp_len -= editor.screen_cols;
}
strncpy(tmp_line, &(editor.rows[i].line)[idx], tmp_len);
tmp_line[tmp_len] = '\0';
screen_buffer_append(tmp_line, tmp_len + 2);
} }
} }