ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 31日 (日) 01:18:42 JST
-------------------------
REMOTE_ADDR = 70.49.48.128
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-dancr-rbcatut-intro
-------------------------
@@ -299,11 +299,9 @@
class BasicWindow < Gtk::Window
def initialize(title = nil)
super(Gtk::Window::TOPLEVEL)
-
set_title(title) if title
set_size_request(250, 200)
border_width = 10
-
signal_connect("key_press_event") do |widget, event|
if event.state.control_mask? and event.keyval == Gdk::Keyval::GDK_q
destroy
@@ -312,40 +310,31 @@
false
end
end
-
signal_connect("delete_event") { |widget, event| quit }
signal_connect("destroy") { Gtk.main_quit }
-
puts "DEBUG:initialize completed in class BasicWindow"
end
-
def quit
puts "DEBUG: quiting Hiki example"
destroy
false
end
end
-
-
+
class CairoWindow < BasicWindow
-
PI = Math::PI
RAD2DEG = 180/PI
DEG2RAD = PI/180
-
+
BLACK=[0,0,0]; RED=[1,0,0]; GREEN=[0,1,0]; BLUE=[0,0,1];
TURQUOISE=[0,1,1]; PINK=[1,0,1]; YELLOW=[1,1,0]; WHITE=[1,1,1]
GRAY=[0.8,0.8,0.8]
-
+
def initialize(title=nil)
super
unless Gdk.cairo_available?
raise "This program requires GTK+ 2.8.0 or later and cairo support"
end
-
drawing_area = Gtk::DrawingArea.new
add(drawing_area)
-
drawing_area.signal_connect("expose_event") do |w, e|
cr = w.window.create_cairo_context
cr.rectangle(e.area.x, e.area.y, e.area.width, e.area.height)
@@ -354,18 +345,5 @@
end
puts "DEBUG:initialize completed in class CairoWindow"
end
-
def draw(cr, drawing_area)
-
width, height = drawing_area.window.size
-
# Fill the background with gray
cr.set_source_rgb(GRAY)
cr.rectangle(0, 0, width, height)
cr.fill()
end
end
-
end
@@ -373,7 +360,-5 @@
# ------- REQUIRED FILES: -----------
{{br}}
{{br}}
-(12.3.0.4){{br}}
+
:To run the examples in this article download the following files into your program directory:
+ (12.3.0.4){{br}}
* hiki2-gtk-w-cairo.rb' .......... module file; see section 12.3.0.3 ((<Hiki Gtk With Cairo Module Download File|tut-gtk2-dancr-rbcatut-intro#Hiki Gtk With Cairo Module Download File>)).