Compare tool: panels jumps when scrolling down at the end

[alexantr]

Try to compare by content some files, scroll to the end and continue scrolling down. Left and right panels jump randomly.

Demonstration: https://imgur.com/a/6zNyweg

I tested versions 9.22a, 9.50 and 9.51RC5 (x64, fresh installations with default settings and no plugins).

Versions 9.50 and 9.51RC5 have bug, version 9.22a has no bug.

OS: Windows 10 Enterprise 1909

[petermad]

I cannot reproduce this - I have tested with TC 9.51RC5 32bit and 64bit under Windows 10 Home 1909, without any screen zooming (system DPI scaling) and clean ini files

[Horst.Epp]

Not confirmed
Tested with TC 9.51 RC5 x86 and x64

[petermad]

I have now tested some more and I can now reproduce it with certain file-sizes and certain window sizes.

I can reproduce it this way with TC 9.51RC5 32bit and 64bit under Windows 10 Home 1909:

1. Make a copy (wcmd_deu2.mnu) of the current wcmd_deu.mnu file and make a change to line 114 in the copy.
2. Start TC with a clean ini file.
3. Open the compare tool with the two files.
4. Resize the compare window until it is at least 1187 pixels wide (maximize it on most systems).
5. Scroll to the bottom with the scroll wheel and keep scrolling. I can only reproduce it with the scroll wheel.

With my usual font setting (Lucida console 7), I can actually reproduce it with any window size (with those two files).

If I try doing the same with for example wcmd_deu.lng file I cannot reproduce it, nor can I with shorter files (2500 bytes).

[ghisler(Author)]

This can happen when the two sides do not end exactly at the same position in the list: The side which you scroll tells the other side to scroll too - but when there is no line left to scroll to, it scrolls back. Unfortunately it's almost impossible to avoid, sorry.

[petermad]

This can happen when the two sides do not end exactly at the same position in the list:

But in my example the two files have exactly the same number of lines.

[ghisler(Author)]

Sorry but I cannot reproduce that. It only occurs when they have differnt length here.

[petermad]

2ghisler(Author)
Did you read the part about the window needs to have a certain width? - try with different widths and/or maximized window.

[ghisler(Author)]

Yes I did, I used full screen compare tool (full hd).