[closed] Custom dialog placement

[ZombieKnight]

Hi
How to place my custom dialog, so it's displayed and horizontal_alignment = "center" is related only to the "map part" of the screen?

[Celtic_Minstrel]

The dialog doesn't know anything about the map screen, so it's technically not possible. Since the sidebar is a fixed width as far as I know, you can probably get this to work with the default theme, at least; it would probably break if someone uses a different theme though. Basically, you would have to not use horizontal_alignment = center and instead manipulate things somehow so that the dialog is not centered on the screen. I don't know the details of how this would work.

[ZombieKnight]

Couldn't be gui.show_narration code re-used?
I haven't found ho it's done there.

[Celtic_Minstrel]

gui.show_narration is written in C++, so while technically yes it could be reused, that doesn't help you any. Unless the placement is done in the WML – you're welcome to take a look.

[white_haired_uncle]

I wonder if you could make the dialog transparent, then position the widgets carefully so it appears the dialog is where you want.

[Celtic_Minstrel]

I'm pretty sure there's no need to do that. There's allowance in either [window] or [window_definition] for specifying where the dialog window should appear on the screen, so you really just need to work out the right numbers or formulas to get the effect you want. (If it's in [window_definition] you'd also need to add the custom definition from Lua. Maybe you can actually use the same definition as the narration dialog, but I'm not sure if that works.)

[ZombieKnight]

Wait can I create more dialogs easy, using more [resolution]s?
If so which sizes should I make it for?

[Celtic_Minstrel]

The Lua API only lets you use a single [resolution] (you pass the content of that tag to gui.show_dialog). You could of course have your own logic to choose between resolution tags, though I think you don't have access to the screen size…

So in other words, you can't use the [window] tag for a Lua dialog. [window_definition] likely works though, using gui.add_widget_definition, although I don't think anyone has tested this, so I could be wrong. I would expect positioning data to be in the definition, but I haven't checked.

[ZombieKnight]

Um. What I need are three numbers: (I think)
1. Distance between the left side of the screen and the left side of the map
2. Wight of the map
3. Distance between the bottom of the screen and the bottom of the map
Is that true?

[Celtic_Minstrel]

That's technically true, but you, personally, don't need to know those numbers. There are variables in the GUI2 positioning system that already contain the correct numbers. You may also need the height of the menubar, which strangely isn't in a variable (it seems to be 30).

I recommend you look at the file gui/dialogs/wml_message.cfg in the Wesnoth data folder to see how the WML message actually does it. You might even be able to just copy-paste it. (It turns out I was wrong by the way – positioning info goes in [resolution], not [window_definition].)

[ZombieKnight]

There are variables in the GUI2 positioning system that already contain the correct numbers.

Which, how are they named?

[Celtic_Minstrel]

I recommend you look at the file gui/dialogs/wml_message.cfg in the Wesnoth data folder to see how the WML message actually does it.

Look at how it's done there. The variables in question are used – specifically, look at where x, y, width, and height are set in the resolution tag.

[ZombieKnight]

Okay, I'll do my best, I'll report later.

[ZombieKnight]

Made as advised (thanks ^^) vars gamemap_x_offset, gamemap_width, screen_height are used there;

Code: Select all

		x = "(gamemap_x_offset)"
		y = 30
		width = "(gamemap_width)"
		height = "(screen_height - 30)"

(I haven't found any "gamemap_x_offset =" in the code)
When I type 'gamemap_x_offset' into the Lua console returns an error.
Any idea where are these stored/how to get them?

[Ravana]

Search finds where it is published.