window

local window = {
    getTitle = function(self)
        return self.title
    end,
    setTitle = function(self, text)
        if text ~= nil and string.len(text) > 0 then
            self.title = text
        else
            self.title = ""
        end
    end,
    setLine = function(self, line, text, color)
        if text ~= nil and string.len(text) > 0 then
            self.content[line] = {}
            self.content[line]["text"] = text
            self.content[line]["color"] = color or colors.white
        end
    end,
    getLine = function(self, line)
        return self.content[line]
    end,
    clearLine = function(self, line)
        table.remove(self.content, line)
    end,
    setBackgroundColor = function(self, color)
        if color ~= nil and tonumber(color) > 0 then
            self.backgroundColor = color
        else
            self.backgroundColor = colors.black
        end
    end,
    setBorderColor = function(self, color)
        if color ~= nil and tonumber(color) > 0 then
            self.borderColor = color
        else
            self.borderColor = colors.white
        end
    end,
    setTitleColor = function(self, color)
        if color ~= nil and tonumber(color) > 0 then
            self.titleColor = color
        else
            self.titleColor = colors.white
        end
    end,
    draw = function(self)
        local drawTitle = (string.len(self.title) > 0)
        local startPos = vector.new(self.x, self.y)
        local endPos = startPos:add(vector.new(self.width - 1, self.height - 1))

        term.setBackgroundColor(self.backgroundColor)

        for y = startPos.y, endPos.y do
            for x = startPos.x, endPos.x do
                term.setCursorPos(x, y)

                if x == startPos.x or x == endPos.x then
                    term.setTextColor(self.borderColor)

                    if y == startPos.y then
                        term.write(",")
                    elseif y == endPos.y or y == startPos.y + 2 and drawTitle then
                        term.write("+")
                    else
                        term.write("|")
                    end
                else
                    if y == startPos.y or y == endPos.y or y == startPos.y + 2 and drawTitle then
                        term.setTextColor(self.borderColor)
                        term.write("-")
                    else
                        term.write(" ")
                    end
                end
            end
        end

        local textPos = startPos:add(vector.new(2, (drawTitle and 3 or 1)))
        local lineCount = self.height - (drawTitle and 4 or 2)

        if drawTitle then
            term.setCursorPos(textPos.x, textPos.y - 2)
            term.setTextColor(self.titleColor)
            term.write(self.title)
        end

        term.setTextColor(colors.white)
        for i = 1, lineCount do
            if self.content[i] ~= nil then
                term.setCursorPos(textPos.x, textPos.y + i - 1)
                term.setTextColor(self.content[i].color)
                term.write(self.content[i].text)
            end
        end

        term.setCursorPos(endPos.x, endPos.y)
        term.setBackgroundColor(colors.black)
        term.setTextColor(colors.white)
    end
}

local wmetatable = {
    __index = window
}

function new(x, y, width, height)
    local w = {
        x = x or 0,
        y = y or 0,
        width = width or 0,
        height = height or 0,
        title = "",
        content = {},
        backgroundColor = colors.black,
        borderColor = colors.white,
        titleColor = colors.white
    }
    setmetatable( w, wmetatable )
    return w
end