slabOS/lib/basalt/objects/MovableFrame.lua
2025-06-02 10:23:40 +03:00

99 lines
3.1 KiB
Lua

local max,min,sub,rep = math.max,math.min,string.sub,string.rep
return function(name, basalt)
local base = basalt.getObject("Frame")(name, basalt)
local objectType = "MovableFrame"
local parent
local dragXOffset, dragYOffset, isDragging = 0, 0, false
local dragMap = {
{x1 = 1, x2 = "width", y1 = 1, y2 = 1}
}
local object = {
getType = function()
return objectType
end,
setDraggingMap = function(self, t)
dragMap = t
return self
end,
getDraggingMap = function(self)
return dragMap
end,
isType = function(self, t)
return objectType==t or (base.isType~=nil and base.isType(t)) or false
end,
getBase = function(self)
return base
end,
load = function(self)
base.load(self)
self:listenEvent("mouse_click")
self:listenEvent("mouse_up")
self:listenEvent("mouse_drag")
end,
removeChildren = function(self)
base.removeChildren(self)
self:listenEvent("mouse_click")
self:listenEvent("mouse_up")
self:listenEvent("mouse_drag")
end,
dragHandler = function(self, btn, x, y)
if(base.dragHandler(self, btn, x, y))then
if (isDragging) then
local xO, yO = parent:getOffset()
xO = xO < 0 and math.abs(xO) or -xO
yO = yO < 0 and math.abs(yO) or -yO
local parentX = 1
local parentY = 1
parentX, parentY = parent:getAbsolutePosition()
self:setPosition(x + dragXOffset - (parentX - 1) + xO, y + dragYOffset - (parentY - 1) + yO)
self:updateDraw()
end
return true
end
end,
mouseHandler = function(self, btn, x, y, ...)
if(base.mouseHandler(self, btn, x, y, ...))then
parent:setImportant(self)
local fx, fy = self:getAbsolutePosition()
local w, h = self:getSize()
for k,v in pairs(dragMap)do
local x1, x2 = v.x1=="width" and w or v.x1, v.x2=="width" and w or v.x2
local y1, y2= v.y1=="height" and h or v.y1, v.y2=="height" and h or v.y2
if(x>=fx+x1-1)and(x<=fx+x2-1)and(y>=fy+y1-1)and(y<=fy+y2-1)then
isDragging = true
dragXOffset = fx - x
dragYOffset = fy - y
return true
end
end
return true
end
end,
mouseUpHandler = function(self, ...)
isDragging = false
return base.mouseUpHandler(self, ...)
end,
setParent = function(self, p, ...)
base.setParent(self, p, ...)
parent = p
return self
end,
}
object.__index = object
return setmetatable(object, base)
end