class Magick::Geometry
Constants
- FLAGS
- H
- RE
- RFLAGS
- W
Construct an object from a geometry string
- X
- Y
Attributes
flag[RW]
height[RW]
width[RW]
x[RW]
y[RW]
Public Class Methods
from_s(str)
click to toggle source
# File lib/RMagick.rb, line 86 def Geometry.from_s(str) m = RE.match(str) if m width = m[1].nil? && m[2].empty? ? nil : (m[1] || m[2]).to_f height = m[3].nil? && m[4].empty? ? nil : (m[3] || m[4]).to_f x = m[5].to_i y = m[6].to_i flag = RFLAGS[m[7]] else Kernel.raise ArgumentError, "invalid geometry format" end if str['%'] flag = PercentGeometry end Geometry.new(width, height, x, y, flag) end
new(width=nil, height=nil, x=nil, y=nil, flag=nil)
click to toggle source
# File lib/RMagick.rb, line 53 def initialize(width=nil, height=nil, x=nil, y=nil, flag=nil) raise(ArgumentError, "width set to #{width.to_s}") if width.is_a? GeometryValue raise(ArgumentError, "height set to #{height.to_s}") if height.is_a? GeometryValue raise(ArgumentError, "x set to #{x.to_s}") if x.is_a? GeometryValue raise(ArgumentError, "y set to #{y.to_s}") if y.is_a? GeometryValue # Support floating-point width and height arguments so Geometry # objects can be used to specify Image#density= arguments. if width && width.to_f >= 0.0 @width = width.to_f elsif width Kernel.raise ArgumentError, "width must be >= 0: #{width}" end if height && height.to_f >= 0.0 @height = height.to_f elsif height Kernel.raise ArgumentError, "height must be >= 0: #{height}" end @x = x.to_i @y = y.to_i @flag = flag end
Public Instance Methods
to_s()
click to toggle source
Convert object to a geometry string
# File lib/RMagick.rb, line 104 def to_s str = '' if @width && @width > 0 fmt = @width.truncate == @width ? "%d" : "%.2f" str << sprintf(fmt, @width) str << '%' if @flag == PercentGeometry end if (@width && @width > 0 && @flag != PercentGeometry) || (@height && @height > 0) str << 'x' end if @height && @height > 0 fmt = @height.truncate == @height ? "%d" : "%.2f" str << sprintf(fmt, @height) str << '%' if @flag == PercentGeometry end str << sprintf("%+d%+d", @x, @y) if (@x != 0 || @y != 0) if @flag != PercentGeometry str << FLAGS[@flag.to_i] end str end