[simple-scan] Display values which are set in set_option_to_max() method.

[Robert Ancell <rancell src gnome org>]

commit 0e09d9594607e83e89d22c42fe9f523d502e43f0
Author: Bartosz Kosiorek <gang65 poczta onet pl>
Date:   Wed Dec 4 23:50:44 2019 +0100

    Display values which are set in set_option_to_max() method.
    
    This will help resolve issue #90 and #107,
    when Paper Size is set to automatic.

 src/scanner.vala | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/scanner.vala b/src/scanner.vala
index 4ab76ce..cebc85e 100644
--- a/src/scanner.vala
+++ b/src/scanner.vala
@@ -530,7 +530,11 @@ public class Scanner : Object
             return;
 
         var status = Sane.control_option (handle, option_index, Sane.Action.SET_VALUE, &option.range.max, 
null);
-        debug ("sane_control_option (%d, SANE_ACTION_SET_VALUE, option.range.max) -> (%s)", (int) 
option_index, Sane.status_to_string (status));
+
+        if (option.type == Sane.ValueType.FIXED)
+            debug ("sane_control_option (%d, SANE_ACTION_SET_VALUE, option.range.max=%f) -> (%s)", (int) 
option_index, Sane.UNFIX (option.range.max), Sane.status_to_string (status));
+        else
+            debug ("sane_control_option (%d, SANE_ACTION_SET_VALUE, option.range.max=%d) -> (%s)", (int) 
option_index, (int) option.range.max, Sane.status_to_string (status));
     }
 
     private bool set_string_option (Sane.Handle handle, Sane.OptionDescriptor option, Sane.Int option_index, 
string value, out string result)