64 lines
1.8 KiB
Lua
64 lines
1.8 KiB
Lua
|
--[[
|
||
|
|
Simple Graphics: An unopinionated graphics API to make hand-made GUIs easy.
|
||
|
|
Author: Andrew Lalis <andrewlalisofficial@gmail.com>
|
||
|
|
]]--
|
||
|
|
|
||
|
|
local lib = {}
|
||
|
|
|
||
|
|
-- Clears a screen or terminal. If c is not nil then the background color will
|
||
|
|
-- be set prior to clearing.
|
||
|
|
function lib.clear(m, c)
|
||
|
|
if c ~= nil then m.setBackgroundColor(c) end
|
||
|
|
m.clear()
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Fills a rectangle from the given X and Y coordinates, with a width and
|
||
|
|
-- height given by w and h respectively. If c is not nil, then the background
|
||
|
|
-- color is set to c.
|
||
|
|
function lib.fillRect(m, x, y, w, h, c)
|
||
|
|
if c ~= nil then m.setBackgroundColor(c) end
|
||
|
|
for i = 1, w do
|
||
|
|
for j = 1, h do
|
||
|
|
m.setCursorPos(x+i-1, y+j-1)
|
||
|
|
m.write(" ")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Draws a horizontal line from x1 to x2 on the given y level.
|
||
|
|
function lib.drawXLine(m, x1, x2, y, bg, fg, char)
|
||
|
|
char = char or " "
|
||
|
|
if bg ~= nil then m.setBackgroundColor(bg) end
|
||
|
|
if fg ~= nil then m.setTextColor(fg) end
|
||
|
|
for x = x1, x2 do
|
||
|
|
m.setCursorPos(x, y)
|
||
|
|
m.write(char)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Draws a vertical line from y1 to y2, on the given x level.
|
||
|
|
function lib.drawYLine(m, y1, y2, x, bg, fg, char)
|
||
|
|
char = char or " "
|
||
|
|
if bg ~= nil then m.setBackgroundColor(bg) end
|
||
|
|
if fg ~= nil then m.setTextColor(fg) end
|
||
|
|
for y = y1, y2 do
|
||
|
|
m.setCursorPos(x, y)
|
||
|
|
m.write(char)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Draws text starting at the given x y position.
|
||
|
|
function lib.drawText(m, x, y, text, fg, bg)
|
||
|
|
if fg ~= nil then m.setTextColor(fg) end
|
||
|
|
if bg ~= nil then m.setBackgroundColor(bg) end
|
||
|
|
m.setCursorPos(x, y)
|
||
|
|
m.write(text)
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Draws text such that the center of the text is aligned with the given
|
||
|
|
-- x and y coordinates.
|
||
|
|
function lib.drawTextCenter(m, x, y, text, fg, bg)
|
||
|
|
lib.drawText(m, x-(#text/2)+1, y, text, fg, bg)
|
||
|
|
end
|
||
|
|
|
||
|
|
return lib
|