dfhack/library/lua/gui.lua

64 lines
1.5 KiB
Lua

-- Viewscreen implementation utility collection.
local _ENV = mkmodule('gui')
local dscreen = dfhack.screen
Screen = defclass(Screen, dfhack.screen)
function Screen.new(attrs)
return mkinstance(Screen, attrs)
end
function Screen:isShown()
return self._native ~= nil
end
function Screen:isActive()
return self:isShown() and not self:isDismissed()
end
function Screen:renderParent()
if self._native and self._native.parent then
self._native.parent:render()
else
dscreen.clear()
end
end
function paint_border(x1,y1,x2,y2,color,title)
local pen = { ch = ' ', fg = COLOR_BLACK, bg = color }
dscreen.fillRect(pen,x1,y1,x2,y1)
dscreen.fillRect(pen,x1,y2,x2,y2)
dscreen.fillRect(pen,x1,y1+1,x1,y2-1)
dscreen.fillRect(pen,x2,y1+1,x2,y2-1)
if title then
local x = math.floor((x2-x1-3-#title)/2 + x1)
pen.bg = bit32.bxor(pen.bg, 8)
dscreen.paintString(pen, x, y1, ' '..title..' ')
end
end
function Screen:renderFrame(color,title,width,height)
local sw, sh = dscreen.getWindowSize()
local iw, ih = sw-2, sh-2
width = math.min(width or iw, iw)
height = math.min(height or ih, ih)
local gw, gh = iw-width, ih-height
local x1, y1 = math.floor(gw/2), math.floor(gh/2)
local x2, y2 = x1+width+1, y1+height+1
if gw == 0 and gh == 0 then
dscreen.clear()
else
self:renderParent()
dscreen.fillRect({ch=' ',fg=0,bg=0},x1,y1,x2,y2)
end
paint_border(x1,y1,x2,y2,color,title)
return x1+1,y1+1,width,height,x2-1,y2-1
end
return _ENV