mrmBot-Matrix/natives/homebrew.cc

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#include <vips/vips8>
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#include "common.h"
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using namespace std;
using namespace vips;
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char *Homebrew(string type, string *outType, ArgumentMap Arguments,
size_t *DataSize) {
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string caption = GetArgument<string>(Arguments, "caption");
string basePath = GetArgument<string>(Arguments, "basePath");
string assetPath = basePath + "assets/images/hbc.png";
VImage bg = VImage::new_from_file(assetPath.c_str());
VImage text = VImage::text(
".", VImage::option()->set("fontfile",
(basePath + "assets/fonts/hbc.ttf").c_str()));
text = VImage::text(
("<span letter_spacing=\"-5120\" color=\"white\">" + caption + "</span>")
.c_str(),
VImage::option()
->set("rgba", true)
->set("align", VIPS_ALIGN_CENTRE)
->set("font", "PF Square Sans Pro, Twemoji Color Font 96")
->set("fontfile", (basePath + "assets/fonts/twemoji.otf").c_str()));
VImage out = bg.composite2(text, VIPS_BLEND_MODE_OVER,
VImage::option()
->set("x", 400 - (text.width() / 2))
->set("y", 300 - (text.height() / 2) - 8));
void *buf;
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out.write_to_buffer(("." + *outType).c_str(), &buf, DataSize);
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return (char *)buf;
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}