Patch SD file draw bug

2017-10-06 23:57:11 -05:00
parent ef90b49fff
commit de84f57a9c
1 changed files with 3 additions and 2 deletions
--- a/Marlin/src/lcd/ultralcd_impl_DOGM.h
+++ b/Marlin/src/lcd/ultralcd_impl_DOGM.h
@@ -928,14 +928,15 @@ static void lcd_implementation_status_screen() {
      if (!PAGE_CONTAINS(row_y1, row_y2)) return;

      uint8_t n = LCD_WIDTH - (START_COL) - 1;
+      char c;
      if (longFilename[0]) {
        filename = longFilename;
-        longFilename[n] = '\0';
+        longFilename[n] = '\0'; // cutoff at screen edge
      }

      if (isDir) lcd_print(LCD_STR_FOLDER[0]);

-      while (char c = *filename) {
+      while ((c = *filename) && n > 0) {
        n -= lcd_print_and_count(c);
        filename++;
      }