PETKA: Subtitles "jump" (have different line heights)

[Tkachov]

In the original game subtitles have fixed line height, thus they always appear at the same Y position. In ScummVM text labels jump from one Y position to another depending on line height, which looks weird.

Video demonstration: ​https://youtu.be/HHFUXRGwwKc (first 23 seconds are in ScummVM, the other are in the original).

Because of that multiline subtitles also look strange: the gap between two lines changes depending on the lines text.

Another minor issue which probably doesn't deserve a separate ticket: in ScummVM multiline subtitles are left-aligned, while in the original game these were centered.

In the attachments:

• 01_* - superscript baselines for subtitles in ScummVM and original game;
• 02_* - same, but for multiline subtitles;
• 03_* - shows left align (ScummVM) vs. centered (original game);
• petka1-ru.s17 and save2.dat are ScummVM and original game save files for the dialogue from the video;
• petka1.s17 and save3.dat are ScummVM and original game save files for the dialogue from the 03_* screenshots.

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ScummVM 2.3.0git11899-g3fb4d67b4e (Jan 16 2021 05:21:57)
Windows 10 version 20H2 64-bit
Petka 1.0.0.1 aka Red Comrades 1

To reproduce "jumping" (shown on video):

• load the first save file;
• select 'Talk' cursor (right click, then left click on the mouth icon);
• click the merchant;
• select third option and then the last one;
• <you could click to skip speech and see how subtitles "jump">.

To reproduce multiline subtitles (shown on screenshots):

• load the second save file;
• select 'Talk' cursor (right click, then left click on the mouth icon);
• click the girl;
• select second option and then the first one;
• <one of the subtitles would be multiline>;
• click the girl again;
• select second option and then the first one (it was second one before);
• <one of the subtitles would be multiline>.

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Baselines

Original game
ScummVM
Original game
ScummVM

Alignment

Original game	ScummVM