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cleanup: expand tab to 4 spaces

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chrox
2014-03-13 21:52:43 +08:00
parent bd0ba69d08
commit 92219a1f1e
107 changed files with 11743 additions and 11743 deletions
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344
frontend/ui/geometry.lua
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@@ -12,48 +12,48 @@ just use it on simple tables that have x, y and/or w, h
or define your own types using this as a metatable
]]--
local Geom = {
x = 0,
y = 0,
w = 0,
h = 0
x = 0,
y = 0,
w = 0,
h = 0
}
function Geom:new(o)
local o = o or {}
setmetatable(o, self)
self.__index = self
return o
local o = o or {}
setmetatable(o, self)
self.__index = self
return o
end
function Geom:copy()
local n = Geom:new()
n.x = self.x
n.y = self.y
n.w = self.w
n.h = self.h
return n
local n = Geom:new()
n.x = self.x
n.y = self.y
n.w = self.w
n.h = self.h
return n
end
function Geom:__tostring()
return self.w.."x"..self.h.."+"..self.x.."+"..self.y
return self.w.."x"..self.h.."+"..self.x.."+"..self.y
end
--[[
offset rectangle or point by relative values
]]--
function Geom:offsetBy(dx, dy)
self.x = self.x + dx
self.y = self.y + dy
return self
self.x = self.x + dx
self.y = self.y + dy
return self
end
--[[
offset rectangle or point to certain coordinates
]]--
function Geom:offsetTo(x, y)
self.x = x
self.y = y
return self
self.x = x
self.y = y
return self
end
--[[
@@ -62,29 +62,29 @@ scale rectangle (grow to bottom and to the right) or dimension
if a single factor is given, it is applied to both width and height
]]--
function Geom:scaleBy(zx, zy)
self.w = self.w * zx
self.h = self.h * (zy or zx)
return self
self.w = self.w * zx
self.h = self.h * (zy or zx)
return self
end
--[[
this method also takes care of x and y
]]--
function Geom:transformByScale(zx, zy)
self.x = self.x * zx
self.y = self.y * (zx or zy)
self:scaleBy(zx, zy)
self.x = self.x * zx
self.y = self.y * (zx or zy)
self:scaleBy(zx, zy)
end
--[[
return size of geom
]]--
function Geom:sizeof()
if not self.w or not self.h then
return 0
else
return self.w * self.h
end
if not self.w or not self.h then
return 0
else
return self.w * self.h
end
end
--[[
@@ -93,9 +93,9 @@ enlarges or shrinks dimensions or rectangles
note that for rectangles the offset stays the same
]]--
function Geom:changeSizeBy(dw, dh)
self.w = self.w + dw
self.h = self.h + dh
return self
self.w = self.w + dw
self.h = self.h + dh
return self
end
--[[
@@ -104,25 +104,25 @@ return the outer rectangle that contains both us and a given rectangle
works for rectangles, dimensions and points
]]--
function Geom:combine(rect_b)
local combined = self:copy()
if not rect_b or rect_b:sizeof() == 0 then return combined end
if combined.x > rect_b.x then
combined.x = rect_b.x
end
if combined.y > rect_b.y then
combined.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
combined.w = self.x + self.w - combined.x
else
combined.w = rect_b.x + rect_b.w - combined.x
end
if self.y + self.h > rect_b.y + rect_b.h then
combined.h = self.y + self.h - combined.y
else
combined.h = rect_b.y + rect_b.h - combined.y
end
return combined
local combined = self:copy()
if not rect_b or rect_b:sizeof() == 0 then return combined end
if combined.x > rect_b.x then
combined.x = rect_b.x
end
if combined.y > rect_b.y then
combined.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
combined.w = self.x + self.w - combined.x
else
combined.w = rect_b.x + rect_b.w - combined.x
end
if self.y + self.h > rect_b.y + rect_b.h then
combined.h = self.y + self.h - combined.y
else
combined.h = rect_b.y + rect_b.h - combined.y
end
return combined
end
--[[
@@ -131,47 +131,47 @@ returns a rectangle for the part that we and a given rectangle share
TODO: what happens if there is no rectangle shared? currently behaviour is undefined.
]]--
function Geom:intersect(rect_b)
-- make a copy of self
local intersected = self:copy()
if self.x < rect_b.x then
intersected.x = rect_b.x
end
if self.y < rect_b.y then
intersected.y = rect_b.y
end
if self.x + self.w < rect_b.x + rect_b.w then
intersected.w = self.x + self.w - intersected.x
else
intersected.w = rect_b.x + rect_b.w - intersected.x
end
if self.y + self.h < rect_b.y + rect_b.h then
intersected.h = self.y + self.h - intersected.y
else
intersected.h = rect_b.y + rect_b.h - intersected.y
end
return intersected
-- make a copy of self
local intersected = self:copy()
if self.x < rect_b.x then
intersected.x = rect_b.x
end
if self.y < rect_b.y then
intersected.y = rect_b.y
end
if self.x + self.w < rect_b.x + rect_b.w then
intersected.w = self.x + self.w - intersected.x
else
intersected.w = rect_b.x + rect_b.w - intersected.x
end
if self.y + self.h < rect_b.y + rect_b.h then
intersected.h = self.y + self.h - intersected.y
else
intersected.h = rect_b.y + rect_b.h - intersected.y
end
return intersected
end
--[[
return true if self does not share any area with rect_b
]]--
function Geom:notIntersectWith(rect_b)
if (self.x >= (rect_b.x + rect_b.w))
or (self.y >= (rect_b.y + rect_b.h))
or (rect_b.x >= (self.x + self.w))
or (rect_b.y >= (self.y + self.h)) then
return true
end
return false
if (self.x >= (rect_b.x + rect_b.w))
or (self.y >= (rect_b.y + rect_b.h))
or (rect_b.x >= (self.x + self.w))
or (rect_b.y >= (self.y + self.h)) then
return true
end
return false
end
--[[
set size of dimension or rectangle to size of given dimension/rectangle
]]--
function Geom:setSizeTo(rect_b)
self.w = rect_b.w
self.h = rect_b.h
return self
self.w = rect_b.w
self.h = rect_b.h
return self
end
--[[
@@ -181,14 +181,14 @@ works for dimensions, too
for points, it is basically an equality check
]]--
function Geom:contains(rect_b)
if self.x <= rect_b.x
and self.y <= rect_b.y
and self.x + self.w >= rect_b.x + rect_b.w
and self.y + self.h >= rect_b.y + rect_b.h
then
return true
end
return false
if self.x <= rect_b.x
and self.y <= rect_b.y
and self.x + self.w >= rect_b.x + rect_b.w
and self.y + self.h >= rect_b.y + rect_b.h
then
return true
end
return false
end
--[[
@@ -197,48 +197,48 @@ check for equality
works for rectangles, points, dimensions
]]--
function Geom:__eq(rect_b)
if self.x == rect_b.x
and self.y == rect_b.y
and self:equalSize(rect_b)
then
return true
end
return false
if self.x == rect_b.x
and self.y == rect_b.y
and self:equalSize(rect_b)
then
return true
end
return false
end
--[[
check size of dimension/rectangle for equality
]]--
function Geom:equalSize(rect_b)
if self.w == rect_b.w
and self.h == rect_b.h
then
return true
end
return false
if self.w == rect_b.w
and self.h == rect_b.h
then
return true
end
return false
end
--[[
check if our size is smaller than the size of the given dimension/rectangle
]]--
function Geom:__lt(rect_b)
DEBUG("lt:",self,rect_b)
if self.w < rect_b.w and self.h < rect_b.h then
DEBUG("lt:",self,rect_b)
if self.w < rect_b.w and self.h < rect_b.h then
DEBUG("lt+")
return true
end
return true
end
DEBUG("lt-")
return false
return false
end
--[[
check if our size is smaller or equal the size of the given dimension/rectangle
]]--
function Geom:__le(rect_b)
if self.w <= rect_b.w and self.h <= rect_b.h then
return true
end
return false
if self.w <= rect_b.w and self.h <= rect_b.h then
return true
end
return false
end
--[[
@@ -249,92 +249,92 @@ this can also be called with dx=0 and dy=0, which will fit the current
rectangle into the given rectangle
]]--
function Geom:offsetWithin(rect_b, dx, dy)
-- check size constraints and shrink us when we're too big
if self.w > rect_b.w then
self.w = rect_b.w
end
if self.h > rect_b.h then
self.h = rect_b.h
end
-- offset
self.x = self.x + dx
self.y = self.y + dy
-- check offsets
if self.x < rect_b.x then
self.x = rect_b.x
end
if self.y < rect_b.y then
self.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
self.x = rect_b.x + rect_b.w - self.w
end
if self.y + self.h > rect_b.y + rect_b.h then
self.y = rect_b.y + rect_b.h - self.h
end
-- check size constraints and shrink us when we're too big
if self.w > rect_b.w then
self.w = rect_b.w
end
if self.h > rect_b.h then
self.h = rect_b.h
end
-- offset
self.x = self.x + dx
self.y = self.y + dy
-- check offsets
if self.x < rect_b.x then
self.x = rect_b.x
end
if self.y < rect_b.y then
self.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
self.x = rect_b.x + rect_b.w - self.w
end
if self.y + self.h > rect_b.y + rect_b.h then
self.y = rect_b.y + rect_b.h - self.h
end
end
--[[
center the current rectangle at position x and y of a given rectangle
]]--
function Geom:centerWithin(rect_b, x, y)
-- check size constraints and shrink us when we're too big
if self.w > rect_b.w then
self.w = rect_b.w
end
if self.h > rect_b.h then
self.h = rect_b.h
end
-- place to center
self.x = x - self.w/2
self.y = y - self.h/2
-- check boundary
if self.x < rect_b.x then
self.x = rect_b.x
end
if self.y < rect_b.y then
self.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
self.x = rect_b.x + rect_b.w - self.w
end
if self.y + self.h > rect_b.y + rect_b.h then
self.y = rect_b.y + rect_b.h - self.h
end
-- check size constraints and shrink us when we're too big
if self.w > rect_b.w then
self.w = rect_b.w
end
if self.h > rect_b.h then
self.h = rect_b.h
end
-- place to center
self.x = x - self.w/2
self.y = y - self.h/2
-- check boundary
if self.x < rect_b.x then
self.x = rect_b.x
end
if self.y < rect_b.y then
self.y = rect_b.y
end
if self.x + self.w > rect_b.x + rect_b.w then
self.x = rect_b.x + rect_b.w - self.w
end
if self.y + self.h > rect_b.y + rect_b.h then
self.y = rect_b.y + rect_b.h - self.h
end
end
function Geom:shrinkInside(rect_b, dx, dy)
self:offsetBy(dx, dy)
return self:intersect(rect_b)
self:offsetBy(dx, dy)
return self:intersect(rect_b)
end
--[[
return the Euclidean distance between two geoms
]]--
function Geom:distance(geom)
return math.sqrt(math.pow(self.x - geom.x, 2) + math.pow(self.y - geom.y, 2))
return math.sqrt(math.pow(self.x - geom.x, 2) + math.pow(self.y - geom.y, 2))
end
--[[
return the midpoint of two geoms
]]--
function Geom:midpoint(geom)
return Geom:new{
x = (self.x + geom.x) / 2,
y = (self.y + geom.y) / 2,
w = 0, h = 0,
}
return Geom:new{
x = (self.x + geom.x) / 2,
y = (self.y + geom.y) / 2,
w = 0, h = 0,
}
end
--[[
return center point in this geom
]]--
function Geom:center()
return Geom:new{
x = self.x + self.w / 2,
y = self.y + self.h / 2,
w = 0, h = 0,
}
return Geom:new{
x = self.x + self.w / 2,
y = self.y + self.h / 2,
w = 0, h = 0,
}
end
return Geom