"Display figure" not centering the image

[bg]

There’s a question at IF Answers about centering images. 23.6 in the manual says

display (figure name)

This phrase causes the figure to be displayed in the centre of the screen visible to the player.

But when I try this, and run it in WinGlulxe, the image shows up on the left side.

Is this a bug, or am I missing something?

[Draconis (Daniel Stelzer)]

I believe the documentation is in error. If you want to center an image you need to use an extension, which uses text styles to tell the interpreter to center it.

[bg]

Thanks. Hmm. I just tried adding

Include Glulx Image Centering by Emily Short.

And get the following error:

 (Each time Go or Replay is clicked, Inform tries to translate the source text into a working story, and updates this report.)

Problem. The table ‘Table of User Styles (continued)’ won’t work as a continuation, because it contains columns not found in the original ‘Table of User Styles’ .

The old table has columns: style name, background color, color, first line indentation, fixed width, font weight, indentation, italic, justification, relative size, reversed.

The new table has columns: style name, justification, obliquity, indentation, first-line indentation, boldness, fixed width, relative size.

I’m guessing this extension isn’t compatible with the rewritten Glulx Text Effects.

[bg]

Oh, and it looks like it’s already reported:

inform7.com/mantis/view.php?id=1633

[allensocket]

I tested the current extension with Inform 7 build GM62 and it seems to be working fine in current state.

"FigureImageAlignA" by "Community"

The story genre is "Other". The release number is 1.  [genre: https://intfiction.org/t/defining-the-story-genre/4615/1 ]
The story headline is "Glulx technical demonstration".

[ Inform 6M62 has Version 4 of this built in?]
Include Glulx Image Centering by Emily Short.

[
======================================================================================
==  Images / Photographs / Drawings / Figures / Illustrations
======================================================================================
       Install these in the Inform materials folder name "Figures".
       The images are somewhat large so that cropping behavior with the 'side window' can be seen. A mix of gif, png and jpg was used to just to have some technical variety. 

       gif format is formally disallowed in the Blorb distribution, reference: https://intfiction.org/t/inform-7-ide-allows-figures-to-be-png-jpg-gif-no-release-gif/10598/1
]

Figure field-illustration is the file "field.png".
Figure duck-illustration is the file "duck.png".
Figure gopher-snapshot is the file "gopher.jpg".


Showing the picture is an action out of world. Understand "picture" as showing the picture.

Carry out showing the picture:
	say "Here is a duck. 'display' was issued without any conditions.";
	display figure duck-illustration.

Showing the pic2 is an action out of world. Understand "pic2" as showing the pic2.

Carry out showing the pic2:
	say "Here is a duck. 'display' was issued with 'centered'.";
	display figure duck-illustration centered.

Place is a room. "Commands: picture, pic2.  Technical Warning: To do this, 'Glulx Image Centering' uses up the first of the two available custom user text styles, defining it to be center-justified. There can be many uses for these two user text styles and they are a scarce resource.".

I tested this on current Quixe… it does put CSS tags on each HTML IMG tag, “ImageInlineUp” vs “ImageInlineCenter”, but it doesn’t seem to actually display them any different that I can see.

[zarf (Andrew Plotkin)]

The CSS file says

.ImageInlineDown {
  vertical-align: text-top;
}

.ImageInlineUp {
  vertical-align: text-bottom;
}

.ImageInlineCenter {
  vertical-align: middle;
}

If you go to eblong.com/zarf/glulx/quixe/quix … .gblorb.js and type IMAGE, you get a demo of this.