organisation des des fichiers

src/output.c

@@ -0,0 +1,60 @@
+#include "../include/output.h"
+
+void editorDrawRows(struct editorConfig *E, struct abuf *ab) {
+  int y;
+  char welcome[80];
+  int welcome_len;
+  int padding;
+  int len;
+  int file_row;
+  for (y = 0; y < E->screenrows; ++y) {
+    file_row = y + E->row_offset;
+    if (file_row >= E->numrows) {
+      if (E->numrows == 0 && y == E->screenrows / 3) {
+        welcome_len =
+            snprintf(welcome, sizeof(welcome),
+                     "Beluga text editor -- version %s", BELUGA_VERSION);
+        if (welcome_len > E->screencols) {
+          welcome_len = E->screencols;
+        }
+        padding = (E->screencols - welcome_len) / 2;
+        if (padding) {
+          abAppend(ab, "~", 1);
+          --padding;
+        }
+        while (padding--) {
+          abAppend(ab, " ", 1);
+        }
+        abAppend(ab, welcome, welcome_len);
+      } else {
+        abAppend(ab, "~", 1);
+      }
+    } else {
+      len = E->row[file_row].size > E->screencols ? E->screencols
+                                                  : E->row[y].size;
+      abAppend(ab, E->row[file_row].chars, len);
+    }
+    abAppend(ab, ERASE_END_LINE, 3);
+    if (y < E->screenrows - 1) {
+      abAppend(ab, "\r\n", 2);
+    }
+  }
+}
+
+void editorRefreshScreen(struct editorConfig *E) {
+  struct abuf ab = ABUF_INIT;
+  char buf[32];
+
+  abAppend(&ab, HIDE_CURSOR, 6);
+  abAppend(&ab, CURSOR_TOP_LEFT, 3);
+
+  editorDrawRows(E, &ab);
+
+  snprintf(buf, sizeof(buf), "\x1b[%d;%dH", E->cursor_y + 1, E->cursor_x + 1);
+  abAppend(&ab, buf, strlen(buf));
+
+  abAppend(&ab, SHOW_CURSOR, 6);
+
+  write(STDOUT_FILENO, ab.b, ab.len);
+  abFree(&ab);
+}