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Auto-Center Label Text on Parent Panel

 
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AntumDeluge
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PostPosted: Fri Dec 21, 2018 4:29 pm    Post subject: Auto-Center Label Text on Parent Panel Reply with quote

I want to center a text label on its parent panel & update its position to remain centered even if the parent is resized. I'm having trouble figuring out if this is possible.

Here is some example code:
Code:
local function showAbout()
   -- dialog to display information about trainer
   local aboutDialog = createForm(false)
   aboutDialog.setCaption("About")
   aboutDialog.setSize(400, 480)

   -- main panel
   local panel = createPanel(aboutDialog)
   panel.Align = alClient

   -- description text
   local descr = createLabel(panel)
   descr.setCaption("CE Trainer for a Game")

   -- show the dialog
   aboutDialog.showModal()
   -- free memory after dialog is closed
   aboutDialog.destroy()
end


I've tried setting descr.Align, descr.Alignment, & descr.Layout values (as well as those values for panel). But I haven't figured out how to get the text to center on the panel. Is this even possible. Or do I just have to set the text's position manually & disallow resizing the window?
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Dark Byte
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PostPosted: Fri Dec 21, 2018 4:54 pm    Post subject: Reply with quote

in the formdesigner you can use anchor control settings (rightclock the component)

in lua you need to use code like
descr.anchorSideLeft.control=panel
descr.anchorSideLeft.side=asrCenter

or something like that (on my phone so can't check)

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AntumDeluge
How do I cheat?
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Joined: 20 Dec 2018
Posts: 9

PostPosted: Fri Dec 21, 2018 5:30 pm    Post subject: Reply with quote

Ah, thank you Dark Byte. I was just looking at the tutorial & figured out how to center the text in the form designer using anchors. But wasn't sure how to translate it over to Lua. I will try out your suggestions & see if I can find any more references to anchoring on the wiki.

-- Edit --

That worked:
Code:
local function showAbout()
   -- dialog to display information about trainer
   local aboutDialog = createForm(false)
   aboutDialog.setCaption("About")
   aboutDialog.setSize(400, 480)

   -- main panel
   local panel = createPanel(aboutDialog)
   panel.Align = alClient

   -- description text
   local descr = createLabel(panel)
   descr.setCaption("CE Trainer for a Game")
   -- center text
   descr.anchorSideLeft.control = panel
   descr.anchorSideLeft.side = asrCenter
   descr.anchorSideTop.control = panel
   descr.anchorSideTop.side = asrCenter

   -- show the dialog
   aboutDialog.showModal()
   -- free memory after dialog is closed
   aboutDialog.destroy()
end


Thank you again Dark Byte.

-- Edit --

I'm having another small issue with this. In the form designer I can center justify the text by setting Alignment to taCenter. But adding descr.Alignment = taCenter to my code doesn't work.

-- Edit --

I should note that I am using a newline escape character in the text:
Code:
descr.setCaption("CE Trainer\nfor a Game")


-- Edit --

Doesn't seem to work with an actual line break either:
Code:
descr.setCaption("CE Trainer\
for a Game")


-- Solved --

Using lowercase (descr.alignment = taCenter) doesn't work either. However, I was able to get it to work via the setProperty function:
Code:
setProperty(descr, "alignment", "taCenter")
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ParkourPenguin
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PostPosted: Fri Dec 21, 2018 10:12 pm    Post subject: Reply with quote

You need to use it as a string. descr.Alignment = 'taCenter' should work.
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