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This commit is contained in:
Benjamyn Love 2024-02-06 14:50:58 +11:00
parent d4a5b16f6d
commit f298b0b5fd
1 changed files with 18 additions and 2 deletions
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20
kilo.c
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@ -11,6 +11,8 @@
/*** defines ***/ /*** defines ***/
#define KILO_VERSION "0.0.1"
#define CTRL_KEY(k) ((k) & 0x1f) #define CTRL_KEY(k) ((k) & 0x1f)
/*** data ***/ /*** data ***/
@ -123,8 +125,23 @@ void abFree(struct abuf *ab) {
void editorDrawRows(struct abuf *ab) { void editorDrawRows(struct abuf *ab) {
int y; int y;
for (y = 0; y < E.screenrows; y++) { for (y = 0; y < E.screenrows; y++) {
abAppend(ab, "~", 1); if (y == E.screenrows / 3) {
char welcome[80];
int welcomelen = snprintf(welcome, sizeof(welcome),
"Kilo editor -- version %s", KILO_VERSION);
if (welcomelen > E.screencols) welcomelen = E.screencols;
int padding = (E.screencols - welcomelen) / 2;
if (padding) {
abAppend(ab, "~", 1);
padding--;
}
while (padding--) abAppend(ab, " ", 1);
abAppend(ab, welcome, welcomelen);
} else {
abAppend(ab, "~", 1);
}
abAppend(ab, "\x1b[K", 3);
if (y < E.screenrows - 1) { if (y < E.screenrows - 1) {
abAppend(ab, "\r\n", 2); abAppend(ab, "\r\n", 2);
} }
@ -135,7 +152,6 @@ void editorRefreshScreen() {
struct abuf ab = ABUF_INIT; struct abuf ab = ABUF_INIT;
abAppend(&ab, "\x1b[?25l", 6); abAppend(&ab, "\x1b[?25l", 6);
abAppend(&ab, "\x1b[2J", 4);
abAppend(&ab, "\x1b[H" , 3); abAppend(&ab, "\x1b[H" , 3);
editorDrawRows(&ab); editorDrawRows(&ab);