BBCode Style DLabel Coloring

[Shane]

I have seen this mentioned a few times. How hard is it to implement? I only need to change the color of two sets of words in a DLabel. I looked at the TextBoxPlus that someone released but I have no idea what is going on in there.

I know it works like this:

[c=255,255,255]Text[c=255,255,255]Text2

But I don't know how to convert it to colors instead of text.

[LauScript]

Why don't you just

[lua]
Color( r, g, b, a )
[/lua]

[Shane]

Wouldn't work, I am trying to change different words to different colors with the DLabels SetText.

Basically I want to have one DLabel and I want to be able to change certain words colors.

[Bkacjios]

[lua]function ProcessChat( txt, chattable )
local colormatch = "%[c=(%d+),(%d+),(%d+)%]"
local startpos, endpos, r, g, b = string.find( txt, colormatch )

if startpos and endpos and r and g and b then
startpos = startpos - 1
endpos = endpos + 1
local starttxt = string.sub( txt, 1, startpos )
local color = Color( r, g, b )
local endtxt = string.sub( txt, endpos )
local more = string.find( endtxt, colormatch )

if starttxt != "" then
table.insert( chattable, starttxt )
end

table.insert( chattable, color )

if more then
return ProcessChat( endtxt, chattable )
elseif endtxt != "" then
table.insert( chattable, endtxt )
end

return chattable
else
table.insert( chattable, txt )
return chattable
end
end[/lua]

How my chatbox does it. Probably not the best way to do it, but it works. :v:

Pretty much you process the text, it returns a table that you can then use to create multiple DLabels in a line or whatever.

[Shane]

Thanks I didn't release you used multiple DLabels.

[LuaStoned]

You could use markup:

[lua]
function BBtoMarkup(str)
str = str:gsub("[c=","<color=") -- not sure if you have to escape %[ here...
str = str:gsub("]","</color>")
return markup.Parse(str)
end

local bb = BBtoMarkup("[c=255,255,255]Text[c=255,255,255]Text2")

label = vgui.Create("DLabel")
label:SetText("")
local ldraw = label.Draw
label.Draw = function(self)
ldraw(self)
bb:Draw(0,0)
end
label:SizeToContent()[/lua]

Untested but should work.

[Shane]

[QUOTE=The-Stone;23634274]You could use markup:

[lua]
function BBtoMarkup(str)
str = str:gsub("[c=","<color=") -- not sure if you have to escape %[ here...
str = str:gsub("]","</color>")
return markup.Parse(str)
end

local bb = BBtoMarkup("[c=255,255,255]Text[c=255,255,255]Text2")

label = vgui.Create("DLabel")
label:SetText("")
local ldraw = label.Draw
label.Draw = function(self)
ldraw(self)
bb:Draw(0,0)
end
label:SizeToContent()[/lua]

Untested but should work.[/QUOTE]

You are super awesome! This fixes so many problems! I can't wait to explore this.

Took 14 lines of code ( 2 Label ) down to 2 lines of code!

Edit:
How do I use the \n, I can't find the right place to put it.

[pollyzoid]

[QUOTE=The-Stone;23634274]You could use markup:

-Lua-

Untested but should work.[/QUOTE]

I don't think that works. The way you're replacing [c=x,x,x] would result in "<color=255,255,255</color>Text<color=255,255,255</color>Text2"

For the proper result, do this:
[lua]
str = str:gsub( "%[c%s*=(%s*%d+,%s*%d+,%s*%d+)%]", "<color=%1>" ):gsub( "%[/s%]", "</color>" )[/lua]

[LuaStoned]

[QUOTE=raBBish;23636909]I don't think that works. The way you're replacing [c=x,x,x] would result in "<color=255,255,255</color>Text<color=255,255,255</color>Text2"

For the proper result, do this:
[lua]
str = str:gsub( "%[c%s*=(%s*%d+,%s*%d+,%s*%d+)%]", "<color=%1>" ):gsub( "%[/s%]", "</color>" )[/lua][/QUOTE]

Whoops yeah, haven't had time to test (and find the error) at work :()

[Shane]

It is fine, I ended up crunching all your code into two lines and it works perfectly :D

One question though, could you provide a rough example the the \n operator? I have tried it in multiple places in the parse string but it seems to have no effect.

[LuaStoned]

I'm not too sure, bit I guess you'll have to size the DLabel if you'r going to make newlines (it'll cut off otherwhise)

[Bkacjios]

This is actually pretty cool. Never thought about using the markup object. I'm trying to convert my system into it.

One thing I noticed is that if you don't supply an alpha value, it defaults to 0..

[LuaStoned]

[QUOTE=blackops7799;23647419]This is actually pretty cool. Never thought about using the markup object. I'm trying to convert my system into it.

One thing I noticed is that if you don't supply an alpha value, it defaults to 0..[/QUOTE]

We should create our own lib. The default markup is pretty slow :(

[Shane]

[QUOTE=blackops7799;23647419]This is actually pretty cool. Never thought about using the markup object. I'm trying to convert my system into it.

One thing I noticed is that if you don't supply an alpha value, it defaults to 0..[/QUOTE]

It is really simple, you don't even really need a DLabel from what I can see. I just put the draw function in a DPanels paint.

[Bkacjios]

Yep, just converted my chatbox to use it. It's nice because it can automatically parse new lines for you!

[lua]function BAdmin.BBtoMarkup( str, maxwide )
str = str:gsub( "%[c%s*=(%s*%d+,%s*%d+,%s*%d+)%]", "<color=%1>" ):gsub( "%[/s%]", "</color>" ):gsub( "<font%s*=(%s*%a+)>", "" ) --Convert BB to markup, and don't allow font changes
return markup.Parse( "<font=BCText>"..str.."</font>", maxwide ), str
end

local ColoredText, nicetext = BAdmin.BBtoMarkup( text, ScrH() / 2 )

local label = vgui.Create("DPanel",row)
label.Paint = function( self )
ColoredText:Draw( 0, 0, TEXT_ALIGN_LEFT, TEXT_ALIGN_LEFT, 255 )
end
label:SetSize( ColoredText:GetWidth(), ColoredText:GetHeight() )

[/lua]