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57 lines
1.1 KiB
Lua
57 lines
1.1 KiB
Lua
local Widget = require("ui/widget/widget")
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local Geom = require("ui/geometry")
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-- Image
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--[[
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ImageWidget shows an image from a file
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--]]
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local ImageWidget = Widget:new{
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file = nil,
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invert = nil,
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dim = nil,
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hide = nil,
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_bb = nil
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}
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function ImageWidget:_render()
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local itype = string.lower(string.match(self.file, ".+%.([^.]+)") or "")
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if itype == "jpeg" or itype == "jpg" then
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self._bb = Image:fromJPEG(self.file)
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elseif itype == "png" then
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self._bb = Image:fromPNG(self.file)
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end
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end
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function ImageWidget:getSize()
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if not self._bb then
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self:_render()
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end
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return Geom:new{ w = self._bb:getWidth(), h = self._bb:getHeight() }
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end
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function ImageWidget:paintTo(bb, x, y)
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local size = self:getSize()
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self.dimen = Geom:new{
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x = x, y = y,
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w = size.w,
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h = size.h
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}
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if self.hide then return end
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bb:blitFrom(self._bb, x, y, 0, 0, size.w, size.h)
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if self.invert then
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bb:invertRect(x, y, size.w, size.h)
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end
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if self.dim then
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bb:dimRect(x, y, size.w, size.h)
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end
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end
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function ImageWidget:free()
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if self._bb then
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self._bb:free()
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self._bb = nil
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end
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end
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return ImageWidget
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