sile-typesetter / sile / 8288578143

coverage: 64.155% (-10.6%) from 74.718%
8288578143

Pull #1904

github

alerque 
chore(core): Fixup ec6ed657 which didn't shim old pack styles properly
Pull Request #1904: Merge develop into master (commit to next release being breaking)

1648 of 2421 new or added lines in 107 files covered. (68.07%)

1843 existing lines in 77 files now uncovered.

10515 of 16390 relevant lines covered (64.15%)

3306.56 hits per line

Source File
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0.0
/packages/image/init.lua
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local base = require("packages.base")
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local package = pl.class(base)




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package._name = "image"




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function package:registerCommands ()




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  self:registerCommand("img", function (options, _)




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    SU.required(options, "src", "including image file")




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    local width =  SU.cast("measurement", options.width or 0):tonumber()




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    local height = SU.cast("measurement", options.height or 0):tonumber()




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    local pageno = SU.cast("integer", options.page or 1)




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    local src = SILE.resolveFile(options.src) or SU.error("Couldn't find file "..options.src)




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    local box_width, box_height, _, _ = SILE.outputter:getImageSize(src, pageno)




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    local sx, sy = 1, 1




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    if width > 0 and height > 0 then




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      sx, sy = box_width / width, box_height / height




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    elseif width > 0 then




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      sx = box_width / width




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      sy = sx




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    elseif height > 0 then




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      sy = box_height / height




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      sx = sy




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    end










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    SILE.typesetter:pushHbox({




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      width = box_width / sx,










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      height = box_height / sy,










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      depth = 0,










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      value = src,










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      outputYourself = function (node, typesetter, _)











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        SILE.outputter:drawImage(node.value, typesetter.frame.state.cursorX, typesetter.frame.state.cursorY-node.height, node.width, node.height, pageno)




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        typesetter.frame:advanceWritingDirection(node.width)




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    end})




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  end, "Inserts the image specified with the <src> option in a box of size <width> by <height>")




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end










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package.documentation = [[










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\begin{document}










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Loading the \autodoc:package{image} package gives you the \autodoc:command{\img} command, fashioned after the HTML equivalent.










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It takes the following parameters: \autodoc:parameter{src=<file>} must be the path to an image file; you may also give \autodoc:parameter{height} and/or \autodoc:parameter{width} parameters to specify the output size of the image on the paper.










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If the size parameters are not given, then the image will be output at its “natural” size, honoring its resolution if available.










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The command also supports a \autodoc:parameter{page=<number>} option, to specify the selected page in formats supporting










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several pages (such as PDF).










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\begin{autodoc:note}










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With the libtexpdf backend (the default), the images can be in JPEG, PNG, EPS, or PDF formats.










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\end{autodoc:note}










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Here is a 200x243 pixel image output with \autodoc:command{\img[src=documentation/gutenberg.png]}.










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The image has a claimed resolution of 100 pixels per inch, so ends up being two inches (144pt) wide on the page:\par










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\img[src=documentation/gutenberg.png]










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\raggedright{










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Here it is with (respectively)










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\autodoc:command{\img[src=documentation/gutenberg.png,width=120pt]},










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\autodoc:command{\img[src=documentation/gutenberg.png,height=200pt]}, and










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\autodoc:command{\img[src=documentation/gutenberg.png,width=120pt,height=200pt]}:}










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\img[src=documentation/gutenberg.png,width=120pt]










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\img[src=documentation/gutenberg.png,height=200pt]










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\img[src=documentation/gutenberg.png,width=120pt,height=200pt]










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Notice that images are typeset on the baseline of a line of text, rather like a very big letter.










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\end{document}











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]]




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return package




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