mirror of
https://github.com/koreader/koreader
synced 2024-11-16 06:12:56 +00:00
62 lines
1.6 KiB
Lua
62 lines
1.6 KiB
Lua
local Widget = require("ui/widget/widget")
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local Screen = require("ui/screen")
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local RenderText = require("ui/rendertext")
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local Geom = require("ui/geometry")
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--[[
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A TextWidget puts a string on a single line
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--]]
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local TextWidget = Widget:new{
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text = nil,
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face = nil,
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bold = nil,
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bgcolor = 0.0, -- [0.0, 1.0]
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fgcolor = 1.0, -- [0.0, 1.0]
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_bb = nil,
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_length = 0,
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_height = 0,
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_maxlength = 1200,
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}
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--function TextWidget:_render()
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--local h = self.face.size * 1.3
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--self._bb = Blitbuffer.new(self._maxlength, h)
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--self._length = RenderText:renderUtf8Text(self._bb, 0, h*0.8, self.face, self.text, true, self.bold)
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--end
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function TextWidget: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 { w = self._length, h = self._bb:getHeight() }
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local tsize = RenderText:sizeUtf8Text(0, Screen:getWidth(), self.face, self.text, true, self.bold)
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if not tsize then
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return Geom:new{}
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end
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self._length = tsize.x
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self._height = self.face.size * 1.5
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return Geom:new{
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w = self._length,
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h = self._height,
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}
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end
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function TextWidget:paintTo(bb, x, y)
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--if not self._bb then
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--self:_render()
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--end
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--bb:blitFrom(self._bb, x, y, 0, 0, self._length, self._bb:getHeight())
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--@TODO Don't use kerning for monospaced fonts. (houqp)
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RenderText:renderUtf8Text(bb, x, y+self._height*0.7, self.face, self.text, true, self.bold,
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self.bgcolor, self.fgcolor, self.width)
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end
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function TextWidget: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 TextWidget
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