Skip to content

Commit

Permalink
goocanvas: replace sample units-demo by GI
Browse files Browse the repository at this point in the history
  • Loading branch information
@myokoym
myokoym committed Mar 28, 2013
1 parent d61d6da commit 9b3f5cf
Showing 1 changed file with 78 additions and 27 deletions.
105 changes: 78 additions & 27 deletions goocanvas/sample/units-demo.rb
View file
Original file line number Diff line number Diff line change
@@ -1,52 +1,103 @@
#!/usr/bin/env ruby
require 'goocanvas'
#
# This sample code is a port of
# goocanvas/demo/units-demo.c. It is licensed
# under the terms of the GNU Library General Public License, version
# 2 or (at your option) later.
#
# Copyright (C) 2013 Ruby-GNOME2 Project Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

require 'goocanvas-gi'

Goo.init

DATA = {
Gtk::PaperSize::UNIT_PIXEL => [ 100, 100, 200, 20, 10, 200, 310, 24 ],
Gtk::PaperSize::UNIT_POINTS => [ 100, 100, 200, 20, 10, 200, 310, 24 ],
Gtk::PaperSize::UNIT_INCH => [ 1, 1, 3, 0.5, 0.16, 3, 4, 0.3 ],
Gtk::PaperSize::UNIT_MM => [ 30, 30, 100, 10, 5, 80, 60, 10 ],
:pixel => [ 100, 100, 200, 20, 10, 200, 310, 24 ],
:points => [ 100, 100, 200, 20, 10, 200, 310, 24 ],
:inch => [ 1, 1, 3, 0.5, 0.16, 3, 4, 0.3 ],
:mm => [ 30, 30, 100, 10, 5, 80, 60, 10 ],
}

def setup_canvas(canvas, units, units_name)
d = DATA[units]

root = canvas.root_item

item = Goo::CanvasRect.new(root, d[0], d[1], d[2], d[3])
item.signal_connect('motion_notify_event') { puts "received 'motion-notify' signal" }

item = Goo::CanvasText.new(root, "This box is #{d[2]}x#{d[3]} #{units_name}",
d[0] + d[2] / 2.0, d[1] + d[3] / 2.0, -1, Gtk::ANCHOR_CENTER, :font => "Sans #{d[4]}px")

item = Goo::CanvasText.new(root, "This font is #{d[7]} #{units_name} high",
d[5], d[6], -1, Gtk::ANCHOR_CENTER, :font => "Sans #{d[7]}px")
item = Goo::CanvasRect.new(:parent => root,
:x => d[0],
:y => d[1],
:width => d[2],
:height => d[3])

item.signal_connect('motion_notify_event') do
puts("item received 'motion-notify' signal")
end

item = Goo::CanvasText.new(:parent => root,
:text => "This box is #{d[2]}x#{d[3]} #{units_name}",
:x => d[0] + d[2] / 2.0,
:y => d[1] + d[3] / 2.0,
:width => -1,
:anchor => :center,
:font => "Sans #{d[4]}px")

item = Goo::CanvasText.new(:parent => root,
:text => "This font is #{d[7]} #{units_name} high",
:x => d[5],
:y => d[6],
:width => -1,
:anchor => :center,
:font => "Sans #{d[7]}px")
end

def create_canvas(units, units_name)
vbox = Gtk::VBox.new(false, 4)
vbox = Gtk::Box.new(:vertical, 4)
vbox.show

hbox = Gtk::HBox.new(false, 4)
vbox.pack_start(hbox, false, false, 0)
hbox = Gtk::Box.new(:horizontal, 4)
vbox.pack_start(hbox, :expand => false,
:fill => false,
:padding => 0)
hbox.show

canvas = Goo::Canvas.new

w = Gtk::Label.new('Zoom:')
hbox.pack_start(w, false, false, 0)
hbox.pack_start(w, :expand => false,
:fill => false,
:padding => 0)
w.show

adj = Gtk::Adjustment.new(1, 0.05, 100, 0.05, 0.5, 0.5)
w = Gtk::SpinButton.new(adj, 0, 2)
adj.signal_connect('value_changed') { |new_adj| canvas.scale = new_adj.value }
adj.signal_connect('value_changed') do |new_adj|
canvas.scale = new_adj.value
end

w.set_size_request(50, -1)
hbox.pack_start(w, false, false, 0)
hbox.pack_start(w, :expand => false,
:fill => false,
:padding => 0)
w.show

scrolled_win = Gtk::ScrolledWindow.new
vbox.pack_start(scrolled_win, true, true, 0)
vbox.pack_start(scrolled_win, :expand => true,
:fill => true,
:padding => 0)
scrolled_win.show

# Create the canvas.
Expand All @@ -55,15 +106,15 @@ def create_canvas(units, units_name)

canvas.set_bounds(0, 0, 1000, 1000)
canvas.units = units
canvas.anchor = Gtk::ANCHOR_CENTER
canvas.anchor = :center
canvas.show

scrolled_win.add(canvas)

vbox
end

window = Gtk::Window.new(Gtk::Window::TOPLEVEL)
window = Gtk::Window.new(:toplevel)
window.set_default_size(640, 600)
window.show
window.signal_connect('delete_event') { Gtk.main_quit }
Expand All @@ -72,9 +123,9 @@ def create_canvas(units, units_name)
notebook.show
window.add(notebook)

notebook.append_page(create_canvas(Gtk::PaperSize::UNIT_PIXEL, 'pixels'), Gtk::Label.new('Pixels'))
notebook.append_page(create_canvas(Gtk::PaperSize::UNIT_POINTS, 'points'), Gtk::Label.new('Points'))
notebook.append_page(create_canvas(Gtk::PaperSize::UNIT_INCH, 'inches'), Gtk::Label.new('Inches'))
notebook.append_page(create_canvas(Gtk::PaperSize::UNIT_MM, 'millimeters'), Gtk::Label.new('Millimeters'))
notebook.append_page(create_canvas(:pixel, 'pixels'), Gtk::Label.new('Pixels'))
notebook.append_page(create_canvas(:points, 'points'), Gtk::Label.new('Points'))
notebook.append_page(create_canvas(:inch, 'inches'), Gtk::Label.new('Inches'))
notebook.append_page(create_canvas(:mm, 'millimeters'), Gtk::Label.new('Millimeters'))

Gtk.main
Gtk.main

0 comments on commit 9b3f5cf

Please sign in to comment.