Class: Rixmap::Format::PCX::PCXFileHeader

Inherits:
Object
  • Object
show all
Defined in:
lib/rixmap/format/pcx.rb

Overview

PCXファイルヘッダ.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PCXFileHeader

Returns a new instance of PCXFileHeader.



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# File 'lib/rixmap/format/pcx.rb', line 67

def initialize()
  @magic = FILE_SIGNATURE
  @version = FORMAT_VERSION_30
  @encoding = ENCODINGTYPE_RLE
  @bit_width = nil
  @left = nil
  @top = nil
  @right = nil
  @bottom = nil
  @dpi_x = 72
  @dpi_y = 72
  @palette = "\x00" * 48
  @bit_planes = nil
  @line_width = nil
  @colortype = COLORTYPE_NORMAL
  @screen_x = 0
  @screen_y = 0

  # packデータ
  @template = "CCCCssssssa48xCSSssx54"
end

Instance Attribute Details

#bit_planes ⇒ Object

Returns the value of attribute bit_planes.



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# File 'lib/rixmap/format/pcx.rb', line 60

def bit_planes
  @bit_planes
end

#bit_width ⇒ Object

Returns the value of attribute bit_width.



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# File 'lib/rixmap/format/pcx.rb', line 48

def bit_width
  @bit_width
end

#bottom ⇒ Object

Returns the value of attribute bottom.



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# File 'lib/rixmap/format/pcx.rb', line 53

def bottom
  @bottom
end

#colortype ⇒ Object

Returns the value of attribute colortype.



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# File 'lib/rixmap/format/pcx.rb', line 62

def colortype
  @colortype
end

#dpi_x ⇒ Object

Returns the value of attribute dpi_x.



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# File 'lib/rixmap/format/pcx.rb', line 55

def dpi_x
  @dpi_x
end

#dpi_y ⇒ Object

Returns the value of attribute dpi_y.



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# File 'lib/rixmap/format/pcx.rb', line 56

def dpi_y
  @dpi_y
end

#encoding ⇒ Object

Returns the value of attribute encoding.



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# File 'lib/rixmap/format/pcx.rb', line 47

def encoding
  @encoding
end

#left ⇒ Object

Returns the value of attribute left.



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# File 'lib/rixmap/format/pcx.rb', line 50

def left
  @left
end

#line_width ⇒ Object

Returns the value of attribute line_width.



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# File 'lib/rixmap/format/pcx.rb', line 61

def line_width
  @line_width
end

#magic ⇒ Object

Returns the value of attribute magic.



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# File 'lib/rixmap/format/pcx.rb', line 45

def magic
  @magic
end

#palette ⇒ Object

Returns the value of attribute palette.



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# File 'lib/rixmap/format/pcx.rb', line 58

def palette
  @palette
end

#right ⇒ Object

Returns the value of attribute right.



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# File 'lib/rixmap/format/pcx.rb', line 52

def right
  @right
end

#screen_x ⇒ Object

Returns the value of attribute screen_x.



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# File 'lib/rixmap/format/pcx.rb', line 64

def screen_x
  @screen_x
end

#screen_y ⇒ Object

Returns the value of attribute screen_y.



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# File 'lib/rixmap/format/pcx.rb', line 65

def screen_y
  @screen_y
end

#top ⇒ Object

Returns the value of attribute top.



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# File 'lib/rixmap/format/pcx.rb', line 51

def top
  @top
end

#version ⇒ Object

Returns the value of attribute version.



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# File 'lib/rixmap/format/pcx.rb', line 46

def version
  @version
end

Instance Method Details

#pack ⇒ String

設定されてる属性値をPCXヘッダバイナリ文字列にエンコードします.

Returns:

  • (String) —

    PCXヘッダバイナリ文字列



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# File 'lib/rixmap/format/pcx.rb', line 100

def pack()
  return [@magic, @version, @encoding, @bit_width, @left, @top, @right, @bottom, @dpi_x, @dpi_y, @palette, @bit_planes, @line_width, @colortype, @screen_x, @screen_y].pack(@template)
end

#unpack(data)

This method returns an undefined value.

文字列からPCXヘッダデータを復元します.

Parameters:

  • data (String) —

    ヘッダ文字列



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# File 'lib/rixmap/format/pcx.rb', line 93

def unpack(data)
  @magic, @version, @encoding, @bit_width, @left, @top, @right, @bottom, @dpi_x, @dpi_y, @palette, @bit_planes, @line_width, @colortype, @screen_x, @screen_y = data.unpack(@template)
end