mirror of https://github.com/kepler155c/opus
146 lines
3.0 KiB
Lua
146 lines
3.0 KiB
Lua
local Terminal = { }
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function Terminal.scrollable(ct, size)
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local size = size or 25
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local w, h = ct.getSize()
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local win = window.create(ct, 1, 1, w, h + size, true)
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local oldWin = Util.shallowCopy(win)
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local scrollPos = 0
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local function drawScrollbar(oldPos, newPos)
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local x, y = oldWin.getCursorPos()
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local pos = math.floor(oldPos / size * (h - 1))
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oldWin.setCursorPos(w, oldPos + pos + 1)
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oldWin.write(' ')
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pos = math.floor(newPos / size * (h - 1))
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oldWin.setCursorPos(w, newPos + pos + 1)
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oldWin.write('#')
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oldWin.setCursorPos(x, y)
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end
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win.setCursorPos = function(x, y)
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oldWin.setCursorPos(x, y)
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if y > scrollPos + h then
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win.scrollTo(y - h)
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elseif y < scrollPos then
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win.scrollTo(y - 2)
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end
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end
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win.scrollUp = function()
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win.scrollTo(scrollPos - 1)
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end
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win.scrollDown = function()
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win.scrollTo(scrollPos + 1)
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end
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win.scrollTo = function(p)
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p = math.min(math.max(p, 0), size)
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if p ~= scrollPos then
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drawScrollbar(scrollPos, p)
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scrollPos = p
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win.reposition(1, -scrollPos + 1)
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end
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end
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win.clear = function()
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oldWin.clear()
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scrollPos = 0
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end
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drawScrollbar(0, 0)
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return win
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end
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function Terminal.toGrayscale(ct)
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local scolors = {
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[ colors.white ] = colors.white,
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[ colors.orange ] = colors.lightGray,
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[ colors.magenta ] = colors.lightGray,
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[ colors.lightBlue ] = colors.lightGray,
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[ colors.yellow ] = colors.lightGray,
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[ colors.lime ] = colors.lightGray,
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[ colors.pink ] = colors.lightGray,
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[ colors.gray ] = colors.gray,
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[ colors.lightGray ] = colors.lightGray,
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[ colors.cyan ] = colors.lightGray,
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[ colors.purple ] = colors.gray,
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[ colors.blue ] = colors.gray,
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[ colors.brown ] = colors.gray,
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[ colors.green ] = colors.lightGray,
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[ colors.red ] = colors.gray,
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[ colors.black ] = colors.black,
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}
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local methods = { 'setBackgroundColor', 'setBackgroundColour',
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'setTextColor', 'setTextColour' }
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for _,v in pairs(methods) do
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local fn = ct[v]
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ct[v] = function(c)
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if scolors[c] then
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fn(scolors[c])
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end
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end
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end
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local bcolors = {
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[ '1' ] = '8',
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[ '2' ] = '8',
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[ '3' ] = '8',
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[ '4' ] = '8',
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[ '5' ] = '8',
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[ '6' ] = '8',
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[ '9' ] = '8',
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[ 'a' ] = '7',
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[ 'b' ] = '7',
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[ 'c' ] = '7',
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[ 'd' ] = '8',
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[ 'e' ] = '7',
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}
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local function translate(s)
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if s then
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for k,v in pairs(bcolors) do
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s = s:gsub(k, v)
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end
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end
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return s
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end
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local fn = ct.blit
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ct.blit = function(text, fg, bg)
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fn(text, translate(fg), translate(bg))
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end
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end
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function Terminal.copy(ot)
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local ct = { }
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for k,v in pairs(ot) do
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if type(v) == 'function' then
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ct[k] = v
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end
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end
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return ct
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end
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function Terminal.mirror(ct, dt)
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for k,f in pairs(ct) do
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ct[k] = function(...)
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local ret = { f(...) }
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if dt[k] then
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dt[k](...)
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end
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return unpack(ret)
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end
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end
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end
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return Terminal
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