Show hovered byte value

1 files changed, 13 insertions, 2 deletions

diff --git a/ntrop.c b/ntrop.c
index 39ecf21..55f6aec 100644
--- a/ntrop.c
+++ b/ntrop.c
@@ -450,14 +450,25 @@ vis(void)
 			if (data_x >= 0 && data_x < data_width
 					&& data_y >= 0 && data_y < data_height) {
 				pos = data_window_start + data_y * data_width + data_x;
-				snprintf(fmtbuf, sizeof(fmtbuf), "0x%08lx", pos);
-				len = MeasureText(fmtbuf, 20);
+				snprintf(fmtbuf, sizeof(fmtbuf), "%08lx", pos);
+				len = MeasureText(fmtbuf, 20) + 10;
 				ImageDrawRectangle(&window_image,
 					window_width - len - 9, 0,
 					len + 9, 19, WHITE);
 				ImageDrawText(&window_image,
 					fmtbuf, window_width - len - 6,
 					0, 20, BLACK);
+				if (pos < data_len) {
+					snprintf(fmtbuf, sizeof(fmtbuf), "%02x",
+						file_data[pos]);
+					len = MeasureText(fmtbuf, 20);
+					ImageDrawRectangle(&window_image,
+						window_width - len - 6, 19,
+						len + 6, 19, WHITE);
+					ImageDrawText(&window_image,
+						fmtbuf, window_width - len - 3,
+						20, 19, BLACK);
+				}
 			}
 		}