fonts, text and basic ui for on-screen log

1 files changed, 44 insertions, 0 deletions

diff --git a/src/ui33.c b/src/ui33.c
new file mode 100644
index 0000000..4139a5e
--- /dev/null
+++ b/src/ui33.c
@@ -0,0 +1,44 @@
+#include "string.h"
+#include "stdarg.h"
+#include "stdio.h"
+
+#include "types.h"
+#include "strings33.h"
+#include "logger.h"
+
+
+#define MB_MAX 6
+
+
+static char messageBox[MB_MAX][256] = { 0, };
+static Size A = 0;
+static Size P = 0;
+
+
+void ui_add_message( String fmt, ... )
+{
+  va_list args;
+  va_start(args, fmt);
+
+  vsnprintf( messageBox[P++], 256, fmt, args );
+  if( P == MB_MAX ) P = 0;
+  if( P == A ) ++A;
+  if( A == MB_MAX ) A = 0;
+
+  va_end(args);
+}
+
+void ui_draw_messages( void )
+{
+  Size start = __display.surface.h - 5 - 8;
+  Size i = P-1;
+
+  qsuprintf( 300, 40, "A(%d), P(%d)", A, P );
+
+  do {
+    if( i < 0 ) i = MB_MAX-1;
+    qsuprint( messageBox[i], 5, start );
+    start -= 18;
+  } while( (i--) != A );
+}
+