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Contents
#!/usr/bin/env ruby
# wxRuby2 Sample Code. Copyright (c) 2004-2008 wxRuby development team
# Freely reusable code: see SAMPLES-LICENSE.TXT for details
begin
require 'rubygems'
rescue LoadError
end
require 'wx'
# This sample demonstrates how to draw an image from a file onto a
# window. This one uses a small PNG file, but other formats such as JPEG
# are supported - see documentation for more details.
#
# This sample uses the Wx::Bitmap class, which is a platform-specific
# representation of an image. This is the class that must be used to
# display an image, but see also Wx::Image, which allows a much wider
# range of manipulations (such as rescaling) and writing to files.
class ImageFrame < Wx::Frame
def initialize
super(nil, :title => 'Simple image demo')
# Load a PNG bitmap from a file for drawing
img_file = File.join( File.dirname(__FILE__), 'wxruby-logo.png')
@bitmap = Wx::Bitmap.new(img_file)
# Set up the drawing to be done when the frame needs re-painting
evt_paint :on_paint
end
def on_paint
paint do | dc |
# Draw the bitmap at offset 10px, 10px, with no transparency
dc.draw_bitmap(@bitmap, 10, 10, false)
end
end
end
Wx::App.run do
ImageFrame.new.show
end
Version data entries
8 entries across 8 versions & 2 rubygems