knb
2ed0bfc0be
SVG入力を現在テープ幅に自動フィットして印刷できるようにし、アプリ側が余白計算できるようにテープ幅・DPI・最小送り量を取得するAPIを追加する。 Made-with: Cursor
71 lines
2.3 KiB
Ruby
71 lines
2.3 KiB
Ruby
# frozen_string_literal: true
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require "ffi"
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module Libptouch
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module Binding
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extend FFI::Library
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def self.library_files
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list = []
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env = ENV["LIBPTOUCH_LIB"]
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list << env if env && !env.empty?
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base = File.expand_path("../../..", __dir__)
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%w[libptouch.so libptouch.dylib].each do |name|
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path = File.join(base, "build", name)
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list << path if File.file?(path)
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end
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list << "libptouch"
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list
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end
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ffi_lib library_files
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class RasterParams < FFI::Struct
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layout :width_dots, :uint32,
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:height_dots, :uint32,
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:margin_mm, :uint8,
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:_pad, [:uint8, 3]
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end
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class MediaInfo < FFI::Struct
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layout :media_width_code, :uint8,
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:media_kind_code, :uint8,
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:_pad0, [:uint8, 6],
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:print_dpi, :double,
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:feed_dpi, :double,
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:tape_width_mm, :double,
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:printable_dots, :uint16,
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:left_margin_dots, :uint16,
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:right_margin_dots, :uint16,
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:min_feed_dots, :uint16,
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:min_feed_mm, :double
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end
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class PngOptions < FFI::Struct
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layout :threshold, :uint8
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end
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class SvgOptions < FFI::Struct
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layout :threshold, :uint8
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end
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attach_function :libptouch_create, [], :pointer
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attach_function :libptouch_destroy, [:pointer], :void
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attach_function :libptouch_strerror, [:pointer], :string
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attach_function :libptouch_last_error, [:pointer], :int
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attach_function :libptouch_open_usb, [:pointer], :int
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attach_function :libptouch_open_usb_vid_pid, %i[pointer uint16 uint16], :int
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attach_function :libptouch_close, [:pointer], :void
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attach_function :libptouch_check_raster, %i[pointer pointer size_t pointer], :int
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attach_function :libptouch_get_current_media_info, %i[pointer pointer], :int
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attach_function :libptouch_print_raster, %i[pointer pointer size_t pointer], :int
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attach_function :libptouch_png_file_to_raster,
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%i[pointer string pointer pointer pointer pointer], :int
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attach_function :libptouch_svg_file_to_raster_fit_current_tape,
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%i[pointer string pointer pointer pointer pointer], :int
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attach_function :libptouch_free_raster, [:pointer], :void
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attach_function :libptouch_get_status, %i[pointer pointer], :int
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end
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end
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