Class: GdkPixbuf::Pixbuf

Inherits:
Object
  • Object
show all
Defined in:
lib/alexandria/ui/icons.rb

Overview

Copyright © 2004-2006 Laurent Sansonetti Copyright © 2014-2016 Matijs van Zuijlen

Alexandria is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Alexandria is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Alexandria; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Instance Method Summary collapse

Instance Method Details

#tag(tag_pixbuf) ⇒ Object 



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# File 'lib/alexandria/ui/icons.rb', line 22

def tag(tag_pixbuf)
  # Computes some tweaks.
  tweak_x = tag_pixbuf.width / 3
  tweak_y = tag_pixbuf.height / 3

  # Creates the destination pixbuf.
  new_pixbuf = GdkPixbuf::Pixbuf.new(colorspace: :rgb,
                                     has_alpha: true,
                                     bits_per_sample: 8,
                                     width: width + tweak_x,
                                     height: height + tweak_y)

  # Fills with blank.
  new_pixbuf.fill!(0)

  # Copies the current pixbuf there (south-west).
  copy_area(0, 0,
            width, height,
            new_pixbuf,
            0, tweak_y)

  # Copies the tag pixbuf there (north-est).
  tag_pixbuf_x = width - (tweak_x * 2)
  new_pixbuf.composite!(tag_pixbuf,
                        dest_x: 0, dest_y: 0,
                        dest_width: tag_pixbuf.width + tag_pixbuf_x,
                        dest_height: tag_pixbuf.height,
                        offset_x: tag_pixbuf_x, offset_y: 0,
                        scale_x: 1, scale_y: 1,
                        interpolation_type: :hyper, overall_alpha: 255)
  new_pixbuf
end