class Mireru::Widget::SVG

Public Class Methods

new(file) click to toggle source
Calls superclass method
# File lib/mireru/widget/svg.rb, line 23
def initialize(file)
  super()
  handle = RSVG::Handle.new_from_file(file)
  width, height = handle.dimensions.to_a

  signal_connect("draw") do |widget, event|
    context = widget.window.create_cairo_context
    window_width = widget.allocated_width
    window_height = widget.allocated_height
    width_scale = window_width.to_f / width
    height_scale = window_height.to_f / height
    scale = [width_scale, height_scale].min
    begin
      context.scale(scale, scale)
    rescue => e
      $stderr.puts("#{e.class}: #{e.message}")
      $stderr.puts(e.backtrace)
    end
    context.render_rsvg_handle(handle)
    true
  end
end