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1if not modules then modules = { } end modules ['grph-raw'] = {
2    version   = 1.001,
3    comment   = "companion to grph-raw.mkiv",
4    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
5    copyright = "PRAGMA ADE / ConTeXt Development Team",
6    license   = "see context related readme files"
7}
8
9-- This module is for Mojca, who wanted something like this for
10-- her gnuplot project. It's somewhat premliminary code but it
11-- works ok for that purpose.
12
13local tonumber = tonumber
14
15local report_bitmap = logs.reporter("graphics","bitmaps")
16
17local context = context
18local texsp   = tex.sp
19
20function figures.bitmapimage(t)
21    local data        = t.data
22    local xresolution = tonumber(t.xresolution)
23    local yresolution = tonumber(t.yresolution)
24    if data and xresolution and yresolution then
25        local width  = t.width or ""
26        local height = t.height or ""
27        local n = backends.nodeinjections.injectbitmap {
28            xresolution = xresolution,
29            yresolution = yresolution,
30            width       = width  ~= "" and texsp(width)  or nil,
31            height      = height ~= "" and texsp(height) or nil,
32            data        = data,
33            colorspace  = t.colorspace,
34            format      = t.format,
35        }
36        if n then
37         -- context.hpack(n)
38            context(nodes.hpack(n))
39        else
40            report_bitmap("format no supported by backend")
41        end
42    else
43        report_bitmap("invalid specification")
44    end
45end
46
47interfaces.implement {
48    name      = "bitmapimage",
49    actions   = figures.bitmapimage,
50    arguments = {
51        {
52            { "data" },
53            { "colorspace" },
54            { "width" },
55            { "height" },
56            { "xresolution" },
57            { "yresolution" },
58        }
59    }
60}
61