SDL: Update editor popup appearance

Author: chrisws

src/ui/audio.cpp

@@ -145,8 +145,8 @@ bool audio_open() {
   bool result;
   ma_backend backends[] = {
     // uncomment for audio in linux
-    //ma_backend_alsa,
-    //ma_backend_jack,
+    ma_backend_alsa,
+    ma_backend_jack,
     //ma_backend_pulseaudio,
     ma_backend_wasapi,
     ma_backend_dsound

src/ui/textedit.cpp

@@ -412,6 +412,9 @@ char EditBuffer::getChar(int pos) {
 }
 
 int EditBuffer::insertChars(int pos, const char *text, int num) {
+  if (num == 1 && *text < 0) {
+    return 0;
+  }
   int required = _len + num + 1;
   if (required >= _size) {
     _size += (required + GROW_SIZE);