computerCraftAPIs/buttonAPI at master · elexx/computerCraftAPIs · GitHub

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-- vim: set filetype=lua:

-- a basic draw function, used by draw
localrawDraw=function(term, startx, starty, width, height, textx, texty, text, isVertical)
c=0
y=starty
whiley<starty+heightdo
term.setCursorPos(startx, y)
x=startx
whilex<startx+widthdo
iftextandnotisVerticalandy==textyandx==textx+candc<#textthen
term.write(text:sub(c+1, c+1))
c=c+1
elseiftextandisVerticalandy==texty+candx==textxandc<#textthen
term.write(text:sub(c+1, c+1))
c=c+1
else
term.write("")
end
x=x+1
end
y=y+1
end
end

localbutton= {
get=function(self, term, ...)
ret= {}
termx, termy=term.getSize()
for_, parinipairs(arg) do
table.insert(ret, type(self[par]) =="function" andself[par](self, termx, termy) orself[par])
end
returnunpack(ret)
end,

-- draw the button
-- takes the term and the panel offset
draw=function(self, term, offx, offy)
isSticky, startx, starty, width, height, text, isVertical, textColor, backgroundColor=self:get(term, "isSticky", "x", "y", "width", "height", "text", "isVertical", "textColor", "backgroundColor")

ifisStickythen
offx=0
offy=0
end

ifisVerticalthen
textX=startx+math.floor(width/2)
textY=starty+math.floor((height-#text) /2)
else
textX=startx+math.floor((width-#text) /2)
textY=starty+math.floor(height/2)
end

iftextColorthen
term.setTextColor(textColor)
end
ifbackgroundColorthen
term.setBackgroundColor(backgroundColor)
end

rawDraw(term, startx+offx, starty+offy, width, height, textX+offx, textY+offy, text, isVertical)
end
}

localfunctionisOneOfTypes(var, ...)
for_, vinipairs(arg) do
iftype(var) ==vthen
returntrue
end
end
returnfalse
end

functionnew(options)
assert(isOneOfTypes(options.x, "number", "function"), "button.new: x is not a number or function")
assert(isOneOfTypes(options.y, "number", "function"), "button.new: y is not a number or function")
assert(isOneOfTypes(options.width, "number", "function"), "button.new: width is not a number or function")
assert(isOneOfTypes(options.height, "number", "function"), "button.new: height is not a number or function")

localo= {
x=options.x,
y=options.y,
width=options.width,
height=options.height,
text=options.textor"",
isSticky=options.isStickyorfalse,
isVertical=options.isVerticalorfalse,
textColor=options.textColororcolors.black,
backgroundColor=options.backgroundColororcolors.white,
callback=options.callback
	}

setmetatable(o, {__index=button})

returno
end

functionnewText(options)
assert(isOneOfTypes(options.x, "number", "function"), "button.newLabel: x is not a number or function")
assert(isOneOfTypes(options.y, "number", "function"), "button.newLabel: y is not a number or function")
assert(isOneOfTypes(options.width, "number", "function"), "button.newLabel: width is not a number or function")
assert(isOneOfTypes(options.height, "number", "function"), "button.newLabel: height is not a number or function")
assert(isOneOfTypes(options.text, "string"), "button.newLabel: text is not a string")

localo= {
x=options.x,
y=options.y,
width=options.width,
height=options.height,
text=options.text,
isSticky=options.isStickyorfalse,
isVertical=options.isVerticalorfalse,
textColor=options.textColororcolors.white,
backgroundColor=options.backgroundColororcolors.black,
	}

setmetatable(o, {__index=button})

returno
end

functionnewLabel(options)
assert(isOneOfTypes(options.button, "table"), "button.newLabel: button is not a button")
o=newText(options)
o.button=options.button;

o.callback=function(self, xPos, yPos)
iftype(self.button.callback) =="function" then
returnself.button:callback(xPos, yPos)
end
end

returno
end

--
-- some usefull helper functions
anchorTop=1

anchorBottom=function(element, termx, termy)
returntermy
end

anchorLeft=1

anchorRight=function(element, termx, termy)
returntermx
end

width=function(percent)
returnfunction(element, termx, termy)
returnmath.floor(termx*percent)
end
end

maxWidth=width(1)

height=function(percent)
returnfunction(element, termx, termy)
returnmath.floor(termy*percent)
end
end

maxHeight=height(1)