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Layout.lua
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--[[------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Layout API ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Layout.new{...} -- new layout with optional settings and/or children
Layout:update{...} -- update layout with settings and/or children
Layout:with(p) or Layout:with(old, new)
-- inheritance: extend Layout (sub)class with additional parameters
-- accepts one or two tables
-- if 'old' and 'new' tables used then keys will be checked
-- 'init' and 'upd' functions are inherited from all parents
-- resulting class can be instantiated (new) or extended (with)
Layout(id) -- access child layout by it's unique id or it's draw order
Layout(col, row) -- access cell by it's row and column numbers
Layout.select(sprite) -- set focus and selector to that sprite
Layout.newAnimation(frames, mark, strength, seed)
-- returns random animation, all parameters are optional
-- 'seed' is used for randomizer to get same animation each time
Layout:play(anim, [newstate], [callback])
-- plays animation if 'anim' is table, see Animation section below
-- or instantly finishes current animation if 'anim' is false
-- newstate is a table with numeric parameters of layout
-- callback is a function which will be called at the end of animation
Layout.newResources{...}
-- loads resources, see Resource Loader section below
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Resource Loader ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Layout has optional resource loader to automatically load various resources.
From the box it supports .jpg, .png, .wav, .mp3, .ttf, .otf, .lua, .json.
Resource Loader returs a table with resources, their names and indexes where
resources can be accessed with t[integer_number] or t[resource_name] and
resource name can be received with negative index i.e. t[-integer_number].
It has following interface:
Layout.newResources{...} where {...} is a table with following parameters:
path = string -- path to directory with resources
subdirs = boolean -- load resources from subdirectories
names = string -- table of names to filter directory files
from = number -- index of first resource file to load
to = number -- index of last resource file to load
output = boolean -- print list of resource files
namemod = function(name, path, base, ext, i) -- to filter file names
onlynames = boolean -- instead of resources return filenames
textureFiltering = boolean
textureOptions = table
fontSize = number
fontText = text
fontFiltering = boolean
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Animation ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
to describe animation a table with the following keys must be used:
-- 'frames' key --
defines animation length
if 'frames' is not exist or is 0 or less then you will get error message
-- 'mark' key --
defines the type of animation
it accepts following values: [-1|0|0..1|1..]
if 'mark' is -1 then it's ending animation (from initial state to new)
if 'mark' is 0 then it's opening animation (from new state to initial)
if 'mark' is greater than 0 then animation will be played as
initial -> new -> initial and 'mark' defines 'initial -> new' length
if 'mark' is in [0..1] range then it will relative to 'frames'
if 'mark' is in [1..frames] then it will be used as is
if 'mark' is in [frames..] then their values will be swapped
-- 'strength' key --
defines multiplier for t (time) parameter to change animation range
equal to 1 if not defined
-- other animation keys --
key names are same as Sprite.set accepts:
x, y, anchorX, anchorY,
rotationX, rotationY, scaleX, scaleY,
rotation, alpha,
redMultiplier, greenMultiplier, blueMultiplier, alphaMultiplier
key values can be [nil|number|function]
all keys are relative to initial state of layout i.e. 0 means no change
-- numeric keys --
each number will be multiplied by t (time) and added to origin,
where t is time (frame / frames) in range [0..1]
-- function-keys --
function must accept one parameter t (time), where t = [0..1]
function must return a number (delta) based on that parameter t
result of function will be multiplied by t and added to original value
-- x, y, anchorX, anchorY --
this parameters are relative to width and height of the layout
-- rotationX, rotationY, rotation --
each rotation will be multiplied by 360 (1.0 = 360, -0.5 = -180, etc)
-- skewX, skewY --
each skew will be multiplied by 90 (1.0 = 90, -0.5 = -45, etc)
--]]------------------------------------------------------------------------
Layout = Core.class(Mesh)
-- default parameters for each new layout (can be modified)
local default = {
-- scale modes for Layout.texM and Layout.sprM
NO_SCALE = 0,
LETTERBOX = 1,
STRETCH = 2,
FIT_WIDTH = 3,
FIT_HEIGHT = 4,
CROP = 5,
-- anchored (to width and height of parent) positioning
ancX = 0.5, -- anchored X, [number]
ancY = 0.5, -- anchored Y, [number]
-- relative (to width and height of parent) positioning
relX = false, -- relative X, [false|number]
relY = false, -- relative Y, [false|number]
-- absolute positioning (disables relative and anchored one)
absX = false, -- absolute X, [false|number]
absY = false, -- absolute X, [false|number]
-- relative (to width and height of parent) size
relW = 1.0,
relH = 1.0,
-- absolute size (disables relative and anchored one)
absW = false,
absH = false,
-- relative width/height restriction
limW = false, -- maximal width/height aspect ratio, [0..]
limH = false, -- maximal height/width aspect ratio, [0..]
-- relative content size
conRelW = 1, -- content width relative to parent, [number]
conRelH = 1, -- content height relative to parent, [number]
-- absolute content size (disables relative width and/or height)
conAbsW = false, -- content absolute width (in pixels), [false|number]
conAbsH = false, -- content absolute height (in pixels), [false|number]
-- template grid (template and database should be both enabled)
template = false, -- Layout or Layout-based class
database = false, -- list of cells' parameters
colsFill = false, -- columns will be filled first if true
-- manual and template grid
cols = 0, -- grid cols number, [0..]
rows = 0, -- grid rows number, [0..]
cellBrdW = 0.0, -- cell border width in pixels
cellBrdH = 0.0, -- cell border height in pixels
cellRelW = 1.0, -- cell relative width for children layouts
cellRelH = 1.0, -- cell relative width for children layouts
cellAbsW = false, -- cell absolute width for children layouts
cellAbsH = false, -- cell absolute height for children layouts
-- grid cell settings
col = false, -- cell column number, [number|false]
row = false, -- cell row number, [number|false]
cellW = 1.0, -- cell width relative modifier
cellH = 1.0, -- cell height relative modifier
-- selector
selector = Layout.new{bgrA = 0.25}, -- [Layout]
selectable = true, -- can be selected by keyboard/joystick, [true|false]
selectedCol = 0, -- col to select grid cell
selectedRow = 0, -- row to select grid cell
-- background
bgrC = 0x000000, -- background color, [0x000000..0xFFFFFF]
bgrA = 0.0, -- background alpha, [0..1]
-- texture
texture = false, -- texture object, [Texture|false]
texC = 0xFFFFFF, -- texture color, [0x000000..0xFFFFFF]
texA = 1.0, -- texture alpha, [0..1]
texM = 1, -- texture scale mode (default: LETTERBOX), [number]
texS = 1.0, -- texture scale, [number]
texAncX = 0.5, -- texture anchored X, [0..1]
texAncY = 0.5, -- texture anchored Y, [0..1]
texOffX = 0.0, -- texture X offset (in pixels)
texOffY = 0.0, -- texture Y offset (in pixels)
-- non-layout children sprites
sprM = 1, -- sprite scale mode (default: LETTERBOX), [number]
sprS = 1.0, -- sprite scale
sprAncX = 0.5, -- sprite anchored X, [0..1]
sprAncY = 0.5, -- sprite anchored Y, [0..1]
sprOffX = 0.0, -- sprite X offset (in pixels)
sprOffY = 0.0, -- sprite Y offset (in pixels)
-- relative center (affects rotation and scaling)
centerX = 0.5, -- [0..1]
centerY = 0.5, -- [0..1]
-- content clipping
clip = true,
-- identification
id = false, -- to get child by id with 'layout(id)' call
-- inheritance
init = false, -- callback at instantiation (useful for custom classes)
-- [false|function(self, parameters)]
ext = false, -- callback at children adding (to modify them)
-- [false|function(self, child)]
upd = false, -- callback at updating (useful for custom classes)
-- [false|function(self, parameters)]
-- keyboard control, can have multiple keys for the same action
keys = { -- [realCode] = action
[16777234] = "LEFT", -- jump to leftward cell
[16777235] = "UP", -- jump to upward cell
[16777236] = "RIGHT", -- jump to rightward cell
[16777237] = "DOWN", -- jump to downward cell
[16777220] = "SELECT", -- enter the layout or press it
[16777219] = "BACK", -- return to parent layout or stage
-- mouse wheel for "UP" and "DOWN" actions
mouseWheel = true,
},
-- gamepad control, can have multiple buttons for the same action
buttons = { -- [keyCode] = action
[19] = "UP",
[20] = "DOWN",
[22] = "RIGHT",
[21] = "LEFT",
[96] = "SELECT",
[97] = "BACK",
-- left stick for "UP", "DOWN", "RIGHT", "LEFT" actions
stickDeadzone = 0.5, -- [0..1], stick disabled at 1
},
-- moving/scrolling
moveReactionX = 1, -- reaction coefficient for X while layout dragged
moveReactionY = 1, -- reaction coefficient for Y while layout dragged
moveDeadzone = 5, -- moving/scrolling starts outside this zone, [0..]
moveFriction = 0.5, -- friction coefficient while layout dragged
moveDamping = 0.9, -- damping coefficient while layout released
moveDelta = 1, -- area side to detect moving/scrolling, [0..]
-- scrolling
scrollFrames = 20, -- animation frames for keyboard or joystick scroll
-- scaling
zoomMouseResp = 0.005, -- scale response for mouse
zoomTouchResp = 0.005, -- scale response for touch
zoomMin = 0.2, -- scale minimal value
zoomMax = 2.0, -- scale maximal value
-- tilting
tiltMouseResp = 1, -- tilt response for mouse
tiltTouchResp = 1, -- tilt response for touch
events = true, -- enable mouse/touch events, [false|true]
-- event callbacks
onAdd = false, -- callback at added to stage event, [false|function]
onRemove = false, -- callback at removed from stage event, [false|function]
onHover = false, -- callback at mouse hovering, [false|function]
onPress = false, -- callback at LMB or touch press, [false|function]
onHold = false, -- callback at LMB or touch while hold, [false|function]
onMove = false, -- callback at layout moving, [false|function]
onScroll = false, -- callback at layout scrolling, [false|function]
onBack = false, -- callback at "BACK" action, [false|function]
onResize = false, -- callback at changing size, [false|function]
onZoom = false, -- callback at zooming, [false|function]
onTilt = false, -- callback at tilt, [false|function]
-- built-in callbacks
scroll = false, -- move children with mouse or touch, [false|true]
move = false, -- move layout with mouse or touch, [false|true]
zoom = false, -- zoom layout with RMB or 2-point touch, [false|true]
tilt = false, -- tilt layout with RMB or 2-point touch, [false|true]
-- animation
anAdd = false, -- opening animation (mark=0)
anRemove = false, -- ending animation (mark=-1)
anPress = false, -- press animation (mark>0)
anHover = false, -- hover animation (mark>0)
}
for k,v in pairs(default) do Layout[k] = v end
local internal = {
-- identification
isLayout = true,
getClass = function() return "Layout" end,
-- inheritance
with = false,
-- to check if event is mouse move event
isMouseMove = false,
-- to check if parent changed
parent = false,
-- event types
IDLE = 0,
HOVER = 1,
PRESS_HOLD = 2,
MOVE_SCROLL = 3,
ZOOM_TILT = 4,
ADD = 5,
REMOVE = 6,
PLAY = 7,
event = 0,
onPlay = false,
-- position and size
x = 0,
y = 0,
w = 0,
h = 0,
-- parent size
parW = 0,
parH = 0,
-- parent cell size
parCellW = 0,
parCellH = 0,
-- parent cell border size
parCellBrdW = 0,
parCellBrdH = 0,
-- selected sprite/layout
selected = stage,
-- scroll offset
offX = 0,
offY = 0,
-- scrolling area size
scrW = 0,
scrH = 0,
-- content size
conW = 0,
conH = 0,
-- animation parameters
frame = 0,
mark = 0,
frames = 0,
newstate = false,
oldstate = false,
-- scroll and move parameters
pointerX0 = 0, -- initial X of pointer
pointerY0 = 0, -- initial Y of pointer
pointerX = 0, -- current X of pointer
pointerY = 0, -- current Y of pointer
pointerDX = 0, -- delta X value
pointerDY = 0, -- delta Y value
pointerAX = 0, -- accumulated X value
pointerAY = 0, -- accumulated Y value,
-- built-in Sprite parameters
super = Layout.super,
removeFromParent = Layout.removeFromParent,
hitTestPoint = Layout.hitTestPoint,
-- animation functions
play = false,
continueAnimation = false,
animate = false,
backupState = false,
restoreState = false,
getAnchorPoint = false,
getRelativePosition = false,
setAnchorPoint = false,
setRelativePosition = false,
-- events functions
disableEvents = false,
enableEvents = false,
-- order changing function
bringToFront = false,
-- grid helper function
getGridSize = false,
-- core funciton to check for updates and animation
enterFrame = false,
-- auxilary functions
newAnimation = false,
newResources = false,
-- event processing functions
atHover = false,
atPress = false,
atZoomOrTilt = false,
onKeyOrButton = false,
onMouseDown = false,
onMouseHover = false,
onMouseMove = false,
onRelease = false,
onTouchesBegin = false,
onTouchesMove = false,
-- select functions
select = false,
selectCell = false,
-- update functions
update = false,
updateColor = false,
updateMove = false,
updateScroll = false,
updateSprite = false,
updateTemplateGrid = false,
updateTexture = false,
updateZoom = false,
}
for k,v in pairs(internal) do Layout[k] = v end
function Layout:with(old, new)
local d = {}
local s = self.superclass
if new then
for k,v in pairs(old) do
if Layout[k] == nil then
if s and s[k] == nil then
error("Layout: new key `"..tostring(k).."`", 2)
end
end
end
for k,v in pairs(new) do
if Layout[k] ~= nil or (s and s[k] ~= nil) then
error("Layout: old key `"..tostring(k).."`", 2)
end
end
for k,v in pairs(new) do d[k] = v end
end
for k,v in pairs(old) do d[k] = v end
if s then
for k,v in pairs(s) do if d[k] == nil then d[k] = v end end
if s.init ~= d.init then
local initS, initD = s.init, d.init
d.init = function(self, p) initS(self, p); initD(self, p) end
end
if s.upd ~= d.upd then
local updS, updD = s.upd, d.upd
d.upd = function(self, p) updS(self, p); updD(self, p) end
end
if s.ext ~= d.ext then
local extS, extD = s.ext, d.ext
d.ext = function(self, p) extS(self, p); extD(self, p) end
end
end
return {
new = function(p)
for k,v in pairs(d) do if p[k] == nil then p[k] = v end end
local layout = Layout.new(p, d)
return layout
end,
superclass = d,
with = Layout.with,
}
end
function Layout.new(p, d)
local self = Mesh.new()
Mesh.setIndexArray(self, 1, 2, 3, 1, 3, 4)
Mesh.setVertices(self, 1,0,0, 2,0,0, 3,0,0, 4,0,0)
setmetatable(self, Layout)
self.backup = {}
for k,v in pairs(p) do
if tonumber(k) then
self:addChild(self.ext and self:ext(v) or v)
elseif Layout[k] ~= nil or (d and d[k] ~= nil) then
self[k] = v
else
error("Layout: unknown key `"..tostring(k).."`", 2)
end
end
if self.init then self:init(p) end
if self.texture then self:setTexture(self.texture) end
local c = self.texture and self.texC or self.bgrC
local a = self.texture and self.texA or self.bgrA
Mesh.setColorArray(self, c, a, c, a, c, a, c, a)
self:addEventListener(Event.ENTER_FRAME, self.enterFrame, self)
--self:addEventListener(Event.ADDED_TO_STAGE, self.enterFrame, self)
return self
end
function Layout:enterFrame(e)
if not self.__parent then return end
local parent = self.__parent
local parW, parH = self.parW, self.parH
if parent.isLayout then
if parent.w == 0 or parent.h == 0 then return end
self.parW, self.parH = parent.w, parent.h
self.parCellBrdW, self.parCellBrdH = parent.cellBrdW, parent.cellBrdH
self.parCellW = parent.cellAbsW or parent.cellRelW * parent.w
self.parCellH = parent.cellAbsH or parent.cellRelH * parent.h
elseif parent == stage then
if application:getScaleMode() == "noScale" then
self.parW = application:getDeviceWidth()
self.parH = application:getDeviceHeight()
else
self.parW = application:getContentWidth()
self.parH = application:getContentHeight()
end
else
Sprite.removeFromParent(self)
local _
_, _, self.parW, self.parH = parent:getBounds(parent)
parent:addChild(self)
end
local update = self.parW ~= parW or self.parH ~= parH
if self.onHold and self.event == Layout.PRESS_HOLD then self:onHold() end
if self.frame < self.frames then
self.frame = self.frame + 1
if self.mark == 0 then
self:animate(1 - self.frame / self.frames)
elseif self.mark == -1 then
self:animate(self.frame / self.frames)
elseif self.frame < self.mark then
self:animate(self.frame / self.mark)
elseif self.frame == self.mark+1 and self.event == Layout.PRESS_HOLD then
self.frame = self.frame - 1
return
elseif self.frame ~= self.frames then
self:animate(1 - (self.frame - self.mark) / (self.frames - self.mark))
end
if self.frame == self.frames then
update = true
self:restoreState()
if self.event == Layout.ADD then
if self.onAdd then self:onAdd() end
if self.events then self:enableEvents() end
elseif self.event == Layout.REMOVE then
if self.onRemove then self:onRemove() end
if self == Layout.selected then
Layout.select(self.__parent)
end
self.parent = nil
Sprite.removeFromParent(self)
return
elseif self.event == Layout.PLAY then
if self.onPlay then self:onPlay() end
if self.events then self:enableEvents() end
end
if self.event ~= Layout.HOVER and self.event ~= Layout.MOVE_SCROLL then
self.event = self.IDLE
end
end
end
if self.scroll or self.move or self.zoom or self.tilt then
if self.event == Layout.MOVE_SCROLL then
local f = self.moveFriction
self.pointerAX = f * (self.pointerAX + self.pointerDX)
self.pointerAY = f * (self.pointerAY + self.pointerDY)
if self.pointerDX ~= 0 or self.pointerDY ~= 0 then
local rx, ry = self.moveReactionX, self.moveReactionY
if self.scroll then
self:updateScroll(rx*self.pointerDX, ry*self.pointerDY)
end
if self.move then
self:updateMove(rx*self.pointerDX, ry*self.pointerDY)
if self.parent and self.parent.scroll then
self.parent:updateScroll(-2 * rx * self.pointerDX,
- 2 * ry * self.pointerDY)
self.parent.pointerAX, self.parent.pointerAY = 0, 0
end
end
self.pointerX = self.pointerX + self.pointerDX
self.pointerY = self.pointerY + self.pointerDY
self.pointerDX, self.pointerDY = 0, 0
end
elseif self.event == Layout.ZOOM_TILT then
if self.pointerDX ~= 0 or self.pointerDY ~= 0 then
if self.zoom then
if self.scroll then
local k = self.isMouseMove and -self.zoomMouseResp
or self.zoomTouchResp
self:updateScroll(0, 0, k * self.pointerDY)
else
local minS, maxS = self.zoomMin, self.zoomMax
local k = self.isMouseMove and -self.zoomMouseResp
or self.zoomTouchResp
local s = self:getScale() + k * self.pointerDY
if s < minS then s = minS
elseif s > maxS then s = maxS end
self:setScale(s)
self.backup.scaleX, self.backup.scaleY = s, s
end
end
if self.tilt then
local k = self.isMouseMove and self.tiltMouseResp
or -57.3 * self.tiltTouchResp
if self.scroll then
else
local r = self:getRotation() + k * self.pointerDX
self:setRotation(r)
self.backup.rotation = r
end
end
self.pointerX = self.pointerX + self.pointerDX
self.pointerY = self.pointerY + self.pointerDY
self.pointerDX, self.pointerDY = 0, 0
end
elseif self.scroll or self.move then
self.pointerAX = math.abs(self.pointerAX) > self.moveDelta and
self.moveDamping * self.pointerAX or 0
self.pointerAY = math.abs(self.pointerAY) > self.moveDelta and
self.moveDamping * self.pointerAY or 0
if self.pointerAX ~= 0 or self.pointerAY ~= 0 then
if self.scroll then
self:updateScroll(self.pointerAX, self.pointerAY)
end
if self.move then
self:updateMove(self.pointerAX, self.pointerAY)
end
end
end
end
if self.parent ~= parent then
self.parent = parent
self:update()
if self.anAdd then
self.event = Layout.ADD
if self.events then self:disableEvents() end
self:play(self.anAdd, nil, 0)
self:animate(1)
else
if self.onAdd then self:onAdd() end
if self.events then self:enableEvents() end
end
elseif update then
self:update()
end
end
function Layout:removeFromParent()
if self.anRemove then
self.event = Layout.REMOVE
self:disableEvents()
self:play(self.anRemove, nil, -1)
else
if self.onRemove then self:onRemove() end
if self == Layout.selected then
Layout.select(self.__parent)
end
self.parent = nil
Sprite.removeFromParent(self)
end
end
-- MOUSE AND TOUCH EVENTS --
function Layout:enableEvents()
local hoverEvents = self.anHover or self.onHover
local moveEvents = self.scroll or self.move or self.zoom or self.tilt
local pressEvents = self.onPress or self.onHold or self.anPress
if hoverEvents then
self:addEventListener(Event.MOUSE_HOVER, self.onMouseHover, self)
end
if pressEvents or moveEvents then
self:addEventListener(Event.MOUSE_DOWN, self.onMouseDown, self)
self:addEventListener(Event.MOUSE_UP, self.onRelease, self)
self:addEventListener(Event.TOUCHES_BEGIN, self.onTouchesBegin, self)
self:addEventListener(Event.TOUCHES_END, self.onRelease, self)
end
if moveEvents then
self:addEventListener(Event.MOUSE_MOVE, self.onMouseMove, self)
self:addEventListener(Event.TOUCHES_MOVE, self.onTouchesMove, self)
end
end
function Layout:disableEvents()
self:removeEventListener(Event.MOUSE_DOWN, self.onMouseDown, self)
self:removeEventListener(Event.MOUSE_UP, self.onRelease, self)
self:removeEventListener(Event.MOUSE_MOVE, self.onMouseMove, self)
self:removeEventListener(Event.MOUSE_HOVER, self.onMouseHover, self)
self:removeEventListener(Event.TOUCHES_BEGIN, self.onTouchesBegin, self)
self:removeEventListener(Event.TOUCHES_MOVE, self.onTouchesMove, self)
self:removeEventListener(Event.TOUCHES_END, self.onRelease, self)
end
function Layout:hitTestPoint(x, y)
local parent = self.__parent
if not parent then return false end
if parent.events then
if parent.frame < parent.frames then return false end
if not parent:hitTestPoint(x, y) then return false end
end
if (self.zoom or self.tilt) and not self.scroll then
local r = Sprite.getRotation(self)
local s = Sprite.getScale(self)
local lx, ly = Sprite.globalToLocal(self, x, y)
Sprite.setRotation(self, 0)
Sprite.setScale(self, 1)
x, y = Sprite.localToGlobal(self, lx, ly)
Sprite.setRotation(self, r)
Sprite.setScale(self, s)
end
local ltg = Sprite.localToGlobal
local x1, y1 = ltg(parent, self.x, self.y)
local x2, y2 = ltg(parent, self.x + self.w, self.y + self.h)
return x >= x1 and y >= y1 and x <= x2 and y <= y2
end
function Layout:bringToFront()
local parent = self.__parent
if parent.template then return end
if parent:getChildIndex(self) ~= parent:getNumChildren() then
Sprite.removeFromParent(self)
parent:addChild(self)
end
end
function Layout:onMouseHover(e)
if Layout.selected:hitTestPoint(e.x, e.y) then
return e:stopPropagation()
end
local focus = self:hitTestPoint(e.x, e.y)
if self.event == Layout.HOVER then
if not focus then self.event = Layout.IDLE end
elseif focus then
self:atHover()
e:stopPropagation()
end
end
function Layout:atHover()
self:bringToFront()
Layout.select(self)
if self.onHover then self.onHover(self) end
if self.anHover then
if self.frame < self.frames and self.event == Layout.HOVER then
self:continueAnimation()
else
self:play(self.anHover, nil, -2)
end
end
self.event = Layout.HOVER
end
function Layout:onMouseDown(e)
if e.button == 1 or e.button == 2 then
self.pointerX, self.pointerY = e.x, e.y
self.pointerX0, self.pointerY0 = self.pointerX, self.pointerY
self.pointerDX, self.pointerDY = 0, 0
if self:hitTestPoint(e.x, e.y) then
if e.button == 1 then
self:atPress()
else
self:atZoomOrTilt()
self.isMouseMove = true
end
e:stopPropagation()
end
end
end
function Layout:onTouchesBegin(e)
if #e.allTouches == 1 then
self.pointerX, self.pointerY = e.touch.x, e.touch.y
self.pointerX0, self.pointerY0 = self.pointerX, self.pointerY
self.pointerDX, self.pointerDY = 0, 0
if self:hitTestPoint(e.touch.x, e.touch.y) then
self:atPress()
e:stopPropagation()
end
elseif #e.allTouches == 2 then
local t1, t2 = e.allTouches[1], e.allTouches[2]
self.pointerX0, self.pointerY0 = (t1.x + t2.x) / 2, (t1.y + t2.y) / 2
if self:hitTestPoint(self.pointerX0, self.pointerY0) then
self.pointerX = math.atan2(t1.x - t2.x, t1.y - t2.y)
self.pointerY = math.sqrt((t1.x - t2.x)^2 + (t1.y - t2.y)^2)
self:atZoomOrTilt()
self.isMouseMove = false
e:stopPropagation()
end
end
end
function Layout:atPress()
local parent = self.__parent
if parent and parent.isLayout then
parent.pointerX, parent.pointerY = self.pointerX, self.pointerY
parent.pointerDX, parent.pointerDY = 0, 0
parent.event = Layout.PRESS_HOLD
end
self:bringToFront()
if self.anHover or self.onHover then Layout.select(self) end
local event = self.event
self.event = Layout.PRESS_HOLD
if self.anPress then
if self.frame < self.frames and event == Layout.PRESS_HOLD then
self:continueAnimation()
else
self:play(self.anPress, nil, -2)
end
end
end
function Layout:atZoomOrTilt(e)
self:bringToFront()
self.pointerAX, self.pointerAY = 0, 0
if self.frame < self.frames then
self.frame = self.frames
self:restoreState()
end
self.event = Layout.ZOOM_TILT
end
function Layout:onMouseMove(e)
self.pointerDX = e.x - self.pointerX
self.pointerDY = e.y - self.pointerY
if self.event == Layout.PRESS_HOLD and (
math.abs(self.pointerDX) > self.moveDeadzone or
math.abs(self.pointerDY) > self.moveDeadzone
) then
if self.frame < self.mark then self:continueAnimation() end
self.event = Layout.MOVE_SCROLL
end
end
function Layout:onTouchesMove(e)
if #e.allTouches == 1 then
self.pointerDX = e.touch.x - self.pointerX
self.pointerDY = e.touch.y - self.pointerY
if self.event == Layout.PRESS_HOLD and (
math.abs(self.pointerDX) > self.moveDeadzone or
math.abs(self.pointerDY) > self.moveDeadzone
) then
if self.frame < self.mark then self:continueAnimation() end
self.event = Layout.MOVE_SCROLL
end
elseif self.event == Layout.ZOOM_TILT then
local t1, t2 = e.allTouches[1], e.allTouches[2]
self.pointerDY = math.sqrt((t1.x - t2.x)^2 + (t1.y - t2.y)^2) - self.pointerY
self.pointerDX = math.atan2(t1.x - t2.x, t1.y - t2.y) - self.pointerX
e:stopPropagation()
end
end
local eventsToHover = {
[Layout.PRESS_HOLD] = true,
[Layout.MOVE_SCROLL] = true,
[Layout.ZOOM_TILT] = true,
}
function Layout:onRelease(e)
if eventsToHover[self.event] then
if self.event == Layout.PRESS_HOLD then
if self.onPress then self:onPress() end
if self.event == Layout.REMOVE then return end
if self.frame < self.frames then self:continueAnimation() end
end
self.event = Layout.HOVER
local parent = self.__parent
if parent and parent.isLayout then
if eventsToHover[parent.event] then
parent.event = Layout.HOVER
end
end
e:stopPropagation()
end
end
-- UPDATING --
function Layout:update(p)
if p then
if self.__parent and self.parent ~= self.__parent then
local parent = self.__parent
if parent.isLayout then
self.parW, self.parH = parent.w, parent.h
self.parCellBrdW = parent.cellBrdW
self.parCellBrdH = parent.cellBrdH
self.parCellW = parent.cellAbsW or parent.cellRelW * parent.w
self.parCellH = parent.cellAbsH or parent.cellRelH * parent.h
elseif parent == stage then
if application:getScaleMode() == "noScale" then
self.parW = application:getDeviceWidth()
self.parH = application:getDeviceHeight()
else
self.parW = application:getContentWidth()
self.parH = application:getContentHeight()
end
else
Sprite.removeFromParent(self)
local _
_, _, self.parW, self.parH = parent:getBounds(parent)
parent:addChild(self)
end
end
if self.upd then self:upd(p) end
if p.texture ~= nil then
local c, a
if p.texture then
self:setTexture(p.texture)
c, a = self.texC, self.texA
else
self:clearTexture()
c, a = self.bgrC, self.bgrA
end
Mesh.setColorArray(self, c, a, c, a, c, a, c, a)
end
if p.events ~= nil then
if p.events then
self:enableEvents()
else
self:disableEvents()
end
end
if p.database ~= nil then
self.offX, self.offY = 0, 0
self.w, self.h = 0, 0
self.selectedCol, self.selectedRow = 0, 0
if self.__children then
for i, child in pairs(self.__children) do
child:removeFromParent()
end
end
end
for k,v in pairs(p) do
if tonumber(k) then
self:addChild(self.ext and self:ext(v) or v)
else
self[k] = v
end
end
self:updateColor(p.texC, p.texA, p.bgrC, p.bgrA)
if self.onScroll and (p.offX or p.offY) then self:onScroll() end
end
local w = self.col and self.parCellW * self.cellW or self.absW or
self.relW * self.parW
local h = self.row and self.parCellH * self.cellH or self.absH or
self.relH * self.parH
if self.limW and w / h > self.limW then w = self.limW * h end
if self.limH and h / w > self.limH then h = self.limH * w end
if w ~= self.w or h ~= self.h then
Mesh.setVertices(self, 1,-1,-1, 2,w+1,-1, 3,w+1,h+1, 4,-1,h+1)
local min, max = math.min, math.max
if self.template then
local cols, rows = self:getGridSize()
local cw = (self.cellAbsW or self.cellRelW * w) + self.cellBrdW
local ch = (self.cellAbsH or self.cellRelH * h) + self.cellBrdH
self.conW = cw * cols - self.cellBrdW
self.conH = ch * rows - self.cellBrdH
if p and (p.selectedCol or p.selectedRow) then
self.scrW = max(0, self.conW - w)
self.scrH = max(0, self.conH - h)
if p.selectedCol then
self.offX = min(cw * self.selectedCol, self.scrW)
end
if p.selectedRow then
self.offY = min(ch * self.selectedRow, self.scrH)
end
if self.onScroll then self:onScroll() end
end
else
if self.cols > 0 then
self.conW = (self.cellAbsW or self.cellRelW * w) * self.cols
else
self.conW = self.conAbsW or self.conRelW * w
end
if self.rows > 0 then
self.conH = (self.cellAbsH or self.cellRelH * h) * self.rows
else
self.conH = self.conAbsH or self.conRelH * h
end
end
self.scrW = max(0, self.conW * self:getScaleX() - w)
self.scrH = max(0, self.conH * self:getScaleY() - h)
self.offX = min(self.offX, self.scrW)
self.offY = min(self.offY, self.scrH)
if self.onResize then self:onResize() end
end
local offX, offY = self.offX, self.offY
if self.clip then self:setClip(offX, offY, w, h) end