"Compare by content" display problem

[sky66]

Windows 8.1 64bit, TC 9.2x ~ 9.50RC2 with all default setting.

1. Use Compare by content to compare "descript.ion" with "HISTORY.TXT" in TOTALCMD directory.

2. Use Vertical arrangement

3. Vertical percentage around 40% or 30%.

4. Check "Show only differences"

5. Press Ctrl+End, the display got problem on the bottom side.

TC 9.12 is OK.

Image: https://i.imgur.com/hEPknLv.png

[ghisler(Author)]

Unfortunately I cannot reproduce it. I tried on Windows 8.1 64-bit with default TC settings.
Which font, font size, and font language do you use? It doesn't look like the default.

[sky66]

Also tested on Win 10 64bit, I got the same problem.
Font: Courier New, font size: 8, and font language: West Europe (default setting)

The previously image use font size:13.

Tested on Win 10 64bit.
Image: https://i.imgur.com/kkcCP7A.png

Another symptom.
Image: https://i.imgur.com/dM6D1F1.png

====
Win 10 64bit + TC 9.12 => OK

If TC 9.50rc2 use horizontal arrangement => OK

Or if 9.50rc2 UnCheck "Show only differences" => OK

[ghisler(Author)]

Unfortunartely I cannot reproduce it on Windows 10 either. I tried with 3 different resoluatuions:
1. 1920x1080, 100% scaling
2. 1920x1080, 150% scaling
3. 3840x2160, 200% scaling

Which resolution do you use?

Is anyone else able to reproduce the problem?

[Usher]

2sky66
It's definitely NOT Courier New on your screenshots. It looks line Times New Roman. You should first fix your font cache in Windows.

[ghisler(Author)]

Usher is right, it looks like Courier New characters, but as a variable pitch font (not all characters have the same width). However, Courier New is a fixed pitch font.

[sky66]

2ghisler(Author)
Win 8.1(NB), 1920x1080
Win 10(PC), 1920x1080, both 100% and 125% scaling has the same problem.

I also tried to change different font and size, still have the same problem.
Image: https://i.imgur.com/ySwzq9U.png

I tested several version of TC, 9.12 is OK. The bottom side is blank.
Image: https://i.imgur.com/dO9vqjR.png

Display problem start from TC 9.2x.

[Usher]

2sky66
What is your graphic card? Have you tried to change its drivers?

BTW. Even if you fix your font cache, metrics for all the fonts may be mismatched before you restart Windows.

[ghisler(Author)]

I have compared the code of the compare tool in Total Commander 9.12 and 9.22, and there are only very few changes.

The most important is that in the newer versions, the window is created as a popup window and not as a main window. I don't know if this can have your effect, but it would be nice if you could test it.

I have therefore sent you a test version to your forum e-mail from my GMail address. It would be nice if you could check that soon. Thanks.

[sky66]

2Usher
Win 8.1(NB) ATI chip graphic card .
Win 10(PC) Nvidia chip graphic card.
I did not change graphic card driver.

I just tried to fresh install TC 9.22a on virtual machine Win XP with virtual graphic card.
It still have the same problem on the bottom side.

Image: https://i.imgur.com/LjRf08L.png

[ghisler(Author)]

Is this test already with the private test version rc2c?

[sky66]

2ghisler(Author)
Unfortunartely, rc2c 32 & 64 bit still have the same problem.

[ghisler(Author)]

Do you use any common 3rd party software on all of these PCs? It's strange that no one in the whole world has ever seen this problem, and you have it on 3 different PCs...

[sky66]

2ghisler(Author)
No, TC 9.22a on virtual machine Win XP is the only one software installed.

And I found there is a new function in TC 9.20 beta 3, but I don't have TC 9.20b3 and 9.20b2 for comparison.
"16.05.18 Added: Compare by content: Select all with Ctrl+A both in read only mode and editor mode (32/64)"

BTW, the display symptom looks like the bottom side did not refresh well.
===
I just download and tested TC 9.20b1~b3 from official web site.
This problem start from TC 9.20b1, it doesn't matter with Ctrl+A function.

[XuaLee]

I can confirm that behaviour. With v9.50RC2 AND also v9.22a. Regardless of font and scaling.
Occurs only, when "Show only differences" is activated and the height of the 2 display ranges is different.

It seems, that the display refresh just "forgets" to clear the remaining lines of the larger window.
The redundant lines at the bottom are not really selectable afterwards.

(W10pro64 + TC64; 1920x1200, 100% scaling, Consolas 11pt std)