44 lines
1.0 KiB
Ruby
44 lines
1.0 KiB
Ruby
|
# Copyright (c) 2005 Ruby-GNOME2 Project Team
|
||
|
|
# This program is licenced under the same licence as Ruby-GNOME2.
|
||
|
|
#
|
||
|
|
# $Id: cairo-text.rb,v 1.1 2005/10/12 05:38:30 ktou Exp $
|
||
|
|
=begin
|
||
|
|
= cairo/Text
|
||
|
|
|
||
|
|
This demo shows how to use GDK and cairo to show text.
|
||
|
|
From http://cairographics.org/samples/text.html.
|
||
|
|
=end
|
||
|
|
require 'common'
|
||
|
|
|
||
|
|
module Demo
|
||
|
|
class CairoText < CairoWindow
|
||
|
|
def initialize
|
||
|
|
super('cairo text')
|
||
|
|
end
|
||
|
|
|
||
|
|
def draw(cr)
|
||
|
|
cr.select_font_face("Sans",
|
||
|
|
Cairo::FONT_SLANT_NORMAL,
|
||
|
|
Cairo::FONT_WEIGHT_BOLD)
|
||
|
|
cr.set_font_size(0.35)
|
||
|
|
|
||
|
|
cr.move_to(0.04, 0.53)
|
||
|
|
cr.show_text("Hello")
|
||
|
|
|
||
|
|
cr.move_to(0.27, 0.65)
|
||
|
|
cr.text_path("void")
|
||
|
|
cr.set_source_rgba(0.5, 0.5, 1)
|
||
|
|
cr.fill_preserve
|
||
|
|
cr.set_source_rgba(0, 0, 0)
|
||
|
|
cr.set_line_width(0.01)
|
||
|
|
cr.stroke
|
||
|
|
|
||
|
|
# draw helping lines
|
||
|
|
cr.set_source_rgba(1,0.2,0.2, 0.6)
|
||
|
|
cr.arc(0.04, 0.53, 0.02, 0, 2 * Math::PI)
|
||
|
|
cr.arc(0.27, 0.65, 0.02, 0, 2 * Math::PI)
|
||
|
|
cr.fill
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|