resize: properly handle state reset on primary screen

When drawing on the primary screen The internal state of the cursor
location was not being updated. This resulted in an invalid state and a
messed up screen

Fixes: #63

Author: rockorager

src/Vaxis.zig

@@ -180,12 +180,11 @@ pub fn resize(
     if (self.state.alt_screen)
         try tty.writeAll(ctlseqs.home)
     else {
+        try tty.writeBytesNTimes(ctlseqs.ri, self.state.cursor.row);
         try tty.writeByte('\r');
-        var i: usize = 0;
-        while (i < self.state.cursor.row) : (i += 1) {
-            try tty.writeAll(ctlseqs.ri);
-        }
     }
+    self.state.cursor.row = 0;
+    self.state.cursor.col = 0;
     try tty.writeAll(ctlseqs.sgr_reset ++ ctlseqs.erase_below_cursor);
 }
 
@@ -401,9 +400,9 @@ pub fn render(self: *Vaxis, tty: AnyWriter) !void {
                     if (n > 0)
                         try tty.print(ctlseqs.cuf, .{n});
                 } else {
-                    try tty.writeByte('\r');
                     const n = row - cursor_pos.row;
                     try tty.writeByteNTimes('\n', n);
+                    try tty.writeByte('\r');
                     if (col > 0)
                         try tty.print(ctlseqs.cuf, .{col});
                 }