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IgorBgz90

Multiple Text [GUI]

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A simple example of a multiple text.

 

function App:Start()
  self.maxTextWidth = 128
  self.sourceText = "Text"
  self.tempText = ""
  self.text={}

  self.lineCount = 0


  for w in string.gmatch(self.sourceText, "[%p%a%d]+") do
     if defaultfont:GetTextWidth(self.tempText) < self.maxTextWidth then
        self.tempText = self.tempText.." "..w
     else
        --We need to find the last word, learn length, and delete it.
        local temp1 = string.reverse(self.tempText)
        local temp2 = string.sub(temp1, 1, string.find(temp1," "))
        temp2 = string.reverse(temp2)
        local temp3 = string.sub(self.tempText, 1, string.len(self.tempText)-string.len(temp2))

        --Add new line to list.
        self.text[self.lineCount] = temp3
        self.lineCount = self.lineCount + 1
        self.tempText = "" 

        --Now we can add the last word to new line.
        self.tempText = self.tempText..temp2.." "..w
     end
  end
  self.text[self.lineCount] = self.tempText
  self.lineCount = self.lineCount + 1 
  self.tempText = ""

  return true
end

function App:Loop()
  --Test text

  self.context:SetBlendMode(Blend.Alpha)
  self.context:SetColor(1,1,1,1)

  for i=0,self.lineCount,1 do
     self.context:DrawText(self.text[i],150,(150)+15*i);
  end

  self.context:SetBlendMode(Blend.Solid)

  self.context:Sync(true)
  return true
end

 

post-13485-0-13920000-1427885120_thumb.png

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I have a one too. My needlessly complicated version with markup language! No wordwrap though sad.png . Maybe one day...

 


--This function will be called once when the program starts

function App:Start()

 

--Initialize Steamworks (optional)

 

--Set the application title

 

--Create a window

local windowstyle = window.Titlebar

if System:GetProperty("fullscreen")=="1" then windowstyle=windowstyle+window.FullScreen end

self.window=Window:Create(self.title,0,0,System:GetProperty("screenwidth","1024"),System:GetProperty("screenheight","768"),windowstyle)

self.window:HideMouse()

 

--Create the graphics context

self.context=Context:Create(self.window,0)

if self.context==nil then return false end

return true

end

--This is our main program loop and will be called continuously until the program ends

function RGBAToVec4Scalar(rgb,a)

return Vec4(rgb[1]/256,rgb[2]/256,rgb[3]/256,a/256)

end

 

function split(string1,sep) --http://lua-users.org/wiki/SplitJoin

local sep, fields = sep or ":", {}

local pattern = string.format("([^%s]+)", sep)

string1 = string.gsub(string1, pattern, function© fields[#fields+1] = c end)

return fields

end

function drawtext2(text,x,y,width,height,colorastable)

local TempContext = Context:GetCurrent()

local tempblendmode = TempContext:GetBlendMode()

local oldcolor = TempContext:GetColor()

TempContext:SetColor(RGBAToVec4Scalar(colorastable,colorastable[4]))

TempContext:SetBlendMode(Blend.Alpha)

 

--[NOTICE] blend mode needs to be set to include alpha

--[NOTICE] all set colors need to be changed to the class color set

local oldcolor = TempContext:GetColor()

TempContext:SetColor(RGBAToVec4Scalar(colorastable,colorastable[4]))

-- [NOTICE] impliment command that will ignore all commands that change size in font and line breaks

-- preprocess string

local textcommands = {}

local workingstring=text

local watch = 1

local last = 0

local wraplines=false

while watch ~= nil do

watch,last = string.find(workingstring, '##(.-)##',watch)

if watch ~= nil then

--print(string.sub(workingstring,watch,last))

table.insert(textcommands,{split(string.sub(workingstring,watch+2,last-2)),watch,last}) -- add it to list of all commands

--split(string.sub(text,watch+2,last-2))

-- remove it from string

workingstring = string.gsub(workingstring,string.sub(workingstring,watch,last),"",1)

if watch ~= nil then

watch =1

end

end

 

end

local font = TempContext:GetFont()

TempContext:SetBlendMode(Blend.Alpha)

local i=0

local linewidth = 0

local lineheight = 0

local linecollection = {}

local currentline = 1

local stringcount = 0

local ignorelinebreak = false

--local currentlinehieghttotal = 0

while i < string.len(workingstring) do

i=i+1

currentletter = string.sub(workingstring,i,i) -- seriously pushing optimizations, no redunant code

-- process fonts

for ii =1 , #textcommands do

if i == textcommands[ii][2] then

local currentcommand = string.upper(textcommands[ii][1][1])

if (currentcommand == "WRAPLINES") == true then

--Debug:Error(textcommands[ii][1][2])

if string.upper(textcommands[ii][1][2]) == "TRUE" then wraplines = true end

if string.upper(textcommands[ii][1][2]) == "FALSE" then wraplines = false end

end

if (currentcommand == "FONTSIZE") == true then

-- so........ leadwerks dosent have a fontsize option........

end

if (currentcommand == "LINEBREAK") == true then

table.insert(linecollection,{linewidth,lineheight,stringcount})

linewidth = 0

lineheight = 0

stringcount = 0

end

if (currentcommand == "COLORRGB") == true then

end

end

end

if lineheight < font:GetHeight() then

lineheight = font:GetHeight()

end

if linewidth + font:GetTextWidth(currentletter) > width and wraplines == true then

--stringcount = stringcount+1

table.insert(linecollection,{linewidth,lineheight,stringcount})

lineheight = 0

linewidth = 0

i=i-1

currentline = currentline +1

stringcount = 0

elseif linewidth + font:GetTextWidth(currentletter) > width and wraplines == false then

-- keep counting strings. we will ignore them later

stringcount = stringcount+1

else

linewidth = linewidth + font:GetTextWidth(currentletter)

stringcount = stringcount+1

end

end

table.insert(linecollection,{linewidth,lineheight,stringcount})

--"Einlanders Text Command:It supports forcedlinebreaks, Inline color changes and line wrapping. Font Size changesLeadwerks does'nt TEXT RENDERING LIKETHIS IS EXPENSIVE

local stringcount = 1

local stringbuilder = ""

local oldlinelocation = 0

local linelocation = 0

local currentheight = 0

local drawtext = false

local currentcolor = TempContext:GetColor()

for i = 1 , #linecollection do

oldlinelocation = 0

linelocation = 0

stringbuilder = ""

--build string till color change

for stringlength = 1 , linecollection[3] do

for ii =1 , #textcommands do

if stringcount == textcommands[ii][2] then

local currentcommand = string.upper(textcommands[ii][1][1])

if (currentcommand == "COLORRGB") == true then

--context:SetColor(currentcolor)

--context:DrawText(stringbuilder,x+oldlinelocation,y+currentheight)

--oldlinelocation = linelocation

--stringbuilder = ""

drawtext = true

end

end

if drawtext == true then

TempContext:SetColor(currentcolor)

TempContext:DrawText(stringbuilder,x+oldlinelocation,y+currentheight)

oldlinelocation = linelocation

stringbuilder = ""

drawtext= false

end

if stringcount == textcommands[ii][2] then

local currentcommand = string.upper(textcommands[ii][1][1])

if (currentcommand == "COLORRGB") == true then

TempContext:SetColor(

textcommands[ii][1][2]/255,

textcommands[ii][1][3]/255,

textcommands[ii][1][4]/255)

currentcolor = TempContext:GetColor()

end

end

end

if drawtext == true then

 

end

currentletter = string.sub(workingstring,stringcount,stringcount)

 

linelocation = linelocation + font:GetTextWidth(currentletter)

 

if linelocation < width and (wraplines == false) then

stringbuilder =stringbuilder .. currentletter

elseif (wraplines == true) then

stringbuilder =stringbuilder .. currentletter

end

 

stringcount = stringcount + 1

if currentheight > height then break end

if stringlength == linecollection[3] then

TempContext:DrawText(stringbuilder,x+oldlinelocation,y+currentheight)

currentheight = currentheight + linecollection[2]+5

end

end

 

--print(string.sub(workingstring,stringcount,linecollection[3]))

--stringcount =stringcount+ linecollection[3]

end

--os.exit()

TempContext:SetColor(RGBAToVec4Scalar({oldcolor.r,oldcolor.g,oldcolor.b},256))

TempContext:SetBlendMode(tempblendmode)

end

function App:Loop()

--If window has been closed, end the program

if self.window:Closed() or self.window:KeyDown(Key.Escape) then return false end

self.context:SetColor(Vec4(100/256,100/256,100/256,1))

self.context:DrawRect(50,200,300,180)

 

-- need to set the box size manually

drawtext2("##wraplines:true####colorrgb:256:0:0##Leadwerks Software##linebreak## ##colorrgb:256:256:256##Leadwerks Software was founded in 2006 to make game development fun and enjoyable."..

"The company launched Leadwerks 3, their first multiplatform product, in April at the GDC 2013 expo. Last summer, the company "..

"conducted a successful Kickstarter campaign to bring Leadwerks to the Linux operating system, reaching over 200% of their goal "..

"in just six weeks. A concurrent Greenlight campaign for Steam was also successful, making Leadwerks the first 3D game engine "..

"approved for distribution on Steam.",50,200,300,150,{255,255,255,255})

 

 

self.context:Sync(true)

return true

end

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nice scripts.

i guess i now have to add automatic line-wrapping to my notes script.

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Thank you again Igor, just added the line-wrapping to the notes script in the steam workshop.

 

This is my implementation using 3 functions:

-- trim spaces from string
function Script:trim2(s)
  return s:match "^%s*(.-)%s*$"
end
-- wraps single line
function Script:LineWrap( sourceText, maxTextWidth, font )
 local tempText = ""
 local text = {}
 local lineCount = 0
 for w in string.gmatch(sourceText, "[%p%a%d]+") do
  if font:GetTextWidth(tempText) < maxTextWidth then
   tempText = tempText.." "..w
  else
   --We need to find the last word, learn length, and delete it.
   local temp1 = string.reverse(tempText)
   local temp2 = string.sub(temp1, 1, string.find(temp1," "))
   temp2 = string.reverse(temp2)
   local temp3 = string.sub(tempText, 1, string.len(tempText)-string.len(temp2))
   --Add new line to list.
   text[lineCount] = temp3
   lineCount = lineCount + 1
   tempText = ""
   --Now we can add the last word to new line.
   tempText = tempText..temp2.." "..w
  end
 end
 text[lineCount] = tempText
 lineCount = lineCount + 1
 tempText = ""
 return text
end
-- wraps Text
function Script:WrapTextLines(text, width, font)
 local finalText = {}
 local tmpText = {}
 local count = 1
 local countB = 1
 for lKey,lValue in pairs(text) do
  if font:GetTextWidth(text[count]) > width then
   tmpText = self:LineWrap(text[count], width, font)
   for lKeyB,lValueB in pairs(tmpText) do
 table.insert(finalText, self:trim2(lValueB))
 countB = countB + 1
   end
  else
   table.insert(finalText, lValue)
  end
  count = count + 1
 end
 return finalText
end

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