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mirror of https://github.com/kepler155c/opus synced 2024-11-17 22:24:50 +00:00
opus/sys/apis/ui/transition.lua
2018-01-24 17:39:38 -05:00

91 lines
2.4 KiB
Lua

local Tween = require('ui.tween')
local Transition = { }
function Transition.slideLeft(args)
local ticks = args.ticks or 6
local easing = args.easing or 'outQuint'
local pos = { x = args.ex }
local tween = Tween.new(ticks, pos, { x = args.x }, easing)
local lastScreen = args.canvas:copy()
return function(device)
local finished = tween:update(1)
local x = math.floor(pos.x)
lastScreen:dirty()
lastScreen:blit(device, {
x = args.ex - x + args.x,
y = args.y,
ex = args.ex,
ey = args.ey },
{ x = args.x, y = args.y })
args.canvas:blit(device, {
x = args.x,
y = args.y,
ex = args.ex - x + args.x,
ey = args.ey },
{ x = x, y = args.y })
return not finished
end
end
function Transition.slideRight(args)
local ticks = args.ticks or 6
local easing = args.easing or'outQuint'
local pos = { x = args.x }
local tween = Tween.new(ticks, pos, { x = args.ex }, easing)
local lastScreen = args.canvas:copy()
return function(device)
local finished = tween:update(1)
local x = math.floor(pos.x)
lastScreen:dirty()
lastScreen:blit(device, {
x = args.x,
y = args.y,
ex = args.ex - x + args.x,
ey = args.ey },
{ x = x, y = args.y })
args.canvas:blit(device, {
x = args.ex - x + args.x,
y = args.y,
ex = args.ex,
ey = args.ey },
{ x = args.x, y = args.y })
return not finished
end
end
function Transition.expandUp(args)
local ticks = args.ticks or 3
local easing = args.easing or 'linear'
local pos = { y = args.ey + 1 }
local tween = Tween.new(ticks, pos, { y = args.y }, easing)
return function(device)
local finished = tween:update(1)
args.canvas:blit(device, nil, { x = args.x, y = math.floor(pos.y) })
return not finished
end
end
function Transition.grow(args)
local ticks = args.ticks or 3
local easing = args.easing or 'linear'
local tween = Tween.new(ticks,
{ x = args.width / 2 - 1, y = args.height / 2 - 1, w = 1, h = 1 },
{ x = 1, y = 1, w = args.width, h = args.height }, easing)
return function(device)
local finished = tween:update(1)
local subj = tween.subject
local rect = { x = math.floor(subj.x), y = math.floor(subj.y) }
rect.ex = math.floor(rect.x + subj.w - 1)
rect.ey = math.floor(rect.y + subj.h - 1)
args.canvas:blit(device, rect, { x = args.x + rect.x - 1, y = args.y + rect.y - 1})
return not finished
end
end
return Transition