Class: NSImage

Inherits:
Object show all
Defined in:
lib/osx/sugarcube-color/nsimage.rb,
lib/osx/sugarcube-nsdata/nsimage.rb

Instance Method Summary collapse

Instance Method Details

#cgcolor(alpha = nil) ⇒ Object


13
14
15
# File 'lib/osx/sugarcube-color/nsimage.rb', line 13

def cgcolor(alpha=nil)
  nscolor(alpha).CGColor
end

#nscolor(alpha = nil) ⇒ NSColor


4
5
6
7
8
9
10
11
# File 'lib/osx/sugarcube-color/nsimage.rb', line 4

def nscolor(alpha=nil)
  color = NSColor.colorWithPatternImage(self)
  if not alpha.nil?
    color = color.colorWithAlphaComponent(alpha.to_f)
  end

  color
end

#nsdata(format = :png, compression = 0.9) ⇒ NSData

optional, and only supported on the JPEG formats


5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
# File 'lib/osx/sugarcube-nsdata/nsimage.rb', line 5

def nsdata(format=:png, compression=0.9)
  self.lockFocus
  bitmap_rep = NSBitmapImageRep.alloc.initWithFocusedViewRect(NSMakeRect(0, 0, self.size.width, self.size.height))
  self.unlockFocus

  case format
  when :png, :PNG
    return bitmap_rep.representationUsingType(NSPNGFileType, properties: nil)
  when :jpg, :jpeg, :JPG, :JPEG
    return bitmap_rep.representationUsingType(NSJPEGFileType, properties: { NSImageCompressionFactor => compression })
  when :jpg2000, :jpeg2000, :JPG2000, :JPEG2000
    return bitmap_rep.representationUsingType(NSJPEG2000FileType, properties: { NSImageCompressionFactor => compression })
  when :tif, :tiff, :TIF, :TIFF
    return bitmap_rep.representationUsingType(NSTIFFFileType, properties: nil)
  when :gif, :GIF
    return bitmap_rep.representationUsingType(NSGIFFileType, properties: nil)
  when :bmp, :BMP
    return bitmap_rep.representationUsingType(NSBMPFileType, properties: nil)
  end
end

#skcolor(alpha = nil) ⇒ Object


17
18
19
# File 'lib/osx/sugarcube-color/nsimage.rb', line 17

def skcolor(alpha=nil)
  nscolor(alpha)
end