File compare for non-image files

Ideas for improvements and requests for new features in XnView Classic

Moderators: XnTriq, xnview

Post Reply
User avatar
helmut
Posts: 8174
Joined: Sun Oct 12, 2003 6:47 pm
Location: Frankfurt, Germany

File compare for non-image files

Post by helmut » Sun Jul 31, 2005 9:36 am

In XnView 1.80 the comparison for images has been added, which is really good (Tools > Compare).

Currently, only image files can be compared, the images are shown in a dialog and I wonder whether it would be good and helpful to be able to compare normal files. For non-image files, XnView could simply open a dialog and say: "Files are identical" or "Files are not identical".

User avatar
Dreamer
XnThusiast
Posts: 4605
Joined: Sun Jul 25, 2004 9:08 pm
Location: Slovakia

Post by Dreamer » Sun Jul 31, 2005 9:58 pm

I support this request.

Maybe also thumbnail/frame for video file could be showned.
For non-image files, XnView could simply open a dialog and say: "Files are identical" or "Files are not identical".
There is no such information for image files too :|

User avatar
helmut
Posts: 8174
Joined: Sun Oct 12, 2003 6:47 pm
Location: Frankfurt, Germany

Post by helmut » Sun Jul 31, 2005 10:46 pm

Dreamer wrote:I support this request.

Maybe also thumbnail/frame for video file could be showned.
For non-image files, XnView could simply open a dialog and say: "Files are identical" or "Files are not identical".
There is no such information for image files too :|
Yes, an information "File A and B are identical" would be much more helpful than showing the CRC values. The CRC checksums of two files only tell whether the files are identical or not. It does not give any indication whether there's little or big differences.

Perhaps a statusbar would be even better than a message box. At the bottom of the compare dialog there is a lot of room left.

User avatar
Dreamer
XnThusiast
Posts: 4605
Joined: Sun Jul 25, 2004 9:08 pm
Location: Slovakia

Post by Dreamer » Sun Jul 31, 2005 11:19 pm

Maybe you could start a new topic for it...

ckit
XnThusiast
Posts: 2444
Joined: Tue Feb 17, 2004 1:11 am

Re: File compare for non-image files

Post by ckit » Mon Aug 01, 2005 2:35 am

helmut wrote:In XnView 1.80 the comparison for images has been added, which is really good (Tools > Compare).

Currently, only image files can be compared, the images are shown in a dialog and I wonder whether it would be good and helpful to be able to compare normal files. For non-image files, XnView could simply open a dialog and say: "Files are identical" or "Files are not identical".
I support this request.
Windows 10 Pro x64 1903
XnViewMP and Classic and PhotoFiltre Studio X

Danny
Posts: 564
Joined: Sat Sep 04, 2004 5:09 pm

Post by Danny » Tue Aug 02, 2005 11:35 pm

helmut wrote:Yes, an information "File A and B are identical" would be much more helpful than showing the CRC values. The CRC checksums of two files only tell whether the files are identical or not. It does not give any indication whether there's little or big differences.

Perhaps a statusbar would be even better than a message box. At the bottom of the compare dialog there is a lot of room left.
Does it really matter? They're different - that's the most important information IMHO.
It's a lot more effort to find out the amount of difference. You would have to create some logic behind it. Like when there has only one bit been added somewhere in the middle. The rest of the file could still be exactly the same but would be recognized as different because of the shifting - and that's just one example from the top of my head.

I do like the idea of comparing non-image files though. (Being able to calculate the CRC value of single files would be nice, too)

User avatar
helmut
Posts: 8174
Joined: Sun Oct 12, 2003 6:47 pm
Location: Frankfurt, Germany

Post by helmut » Wed Aug 03, 2005 6:42 am

Danny wrote:
helmut wrote:Yes, an information "File A and B are identical" would be much more helpful than showing the CRC values. The CRC checksums of two files only tell whether the files are identical or not. It does not give any indication whether there's little or big differences.

Perhaps a statusbar would be even better than a message box. At the bottom of the compare dialog there is a lot of room left.
Does it really matter? They're different - that's the most important information IMHO.

It's a lot more effort to find out the amount of difference. You would have to create some logic behind it. Like when there has only one bit been added somewhere in the middle. The rest of the file could still be exactly the same but would be recognized as different because of the shifting - and that's just one example from the top of my head.
...
I completely agree. With my above comment I just wanted to tell that displaying the CRC is not really helpful for the user, a simple messagebox could give the user the same info in a much simpler way.

Danny
Posts: 564
Joined: Sat Sep 04, 2004 5:09 pm

Post by Danny » Wed Aug 03, 2005 12:02 pm

helmut wrote:I completely agree. With my above comment I just wanted to tell that displaying the CRC is not really helpful for the user, a simple messagebox could give the user the same info in a much simpler way.
But you would loose the feature of calculating the checksum for a file which i like. I don't agree with dumbing it down for the weak minded. IMO it's far more confusing to have a cluttered context and options menu.

Post Reply