ruby-****@sourc*****
ruby-****@sourc*****
2012年 10月 25日 (木) 06:04:15 JST
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REMOTE_ADDR = 184.145.49.94
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-mnstbs-popup
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@@ -284,3 +284,44 @@
It is possible to manually create keyboard accelerators with Gtk::AccelMap, but in most cases the Gtk::Widget#add_accelerator#add_accelerator will provide all the necessary functionality.
+
+
+
+
+=== Accelerators can also be used in programs without menus
+
+{{image_right("accelerator-keys-2.png")}}
+
+All accelerators, regardless of whether they are associated with menus or not use global Gtk::AccelMap object which defines a list entries in this table in the form of mappings between a unique accelerator name (in the Gtk::AccelMap known as the ((*'accel_path')*))and the actual key combinations. These 'accel_paths' eventually have to be mapped to actions either with the help of 'Gtk::AccelGroup#connect(accel_key, accel_mods, accel_flags, closure)', 'Gtk::AccelGroup#connect(accel_key, accel_mods, accel_flags) {...}', or 'Gtk::AccelGroup#connect(accel_path, closure)', or 'Gtk::AccelGroup#connect(accel_path) {...}'.
+
+Following program example will make things more clear:
+
+((*custom-accelerators*))
+
+ #!/usr/bin/env ruby
+
+ require 'gtk2'
+
+ ag = Gtk::AccelGroup.new
+
+ ag.connect(Gdk::Keyval::GDK_Z, Gdk::Window::CONTROL_MASK,
+ Gtk::ACCEL_VISIBLE) {
+ p "You've presswd Ctrl+Z."
+ }
+
+ Gtk::AccelMap.add_entry("<AccelMap Demo>/test_a", Gdk::Keyval::GDK_A, 0)
+ Gtk::AccelMap.add_entry("<AccelMap Demo>/test_b", Gdk::Keyval::GDK_B, 0)
+ Gtk::AccelMap.add_entry("<AccelMap Demo>/test ctrl+sh+c", Gdk::Keyval::GDK_C,
+ Gdk::Window::CONTROL_MASK|Gdk::Window::SHIFT_MASK)
+
+ ag.connect("<AccelMap Demo>/test_a") { p "Hello with (A)" }
+ ag.connect("<AccelMap Demo>/test_b") { p "Hello (B)" }
+ ag.connect("<AccelMap Demo>/test ctrl+sh+c") { p "Hello World, with (Ctrl+Shift+C)" }
+
+ win = Gtk::Window.new("Custom Acceleratots")
+ win.add(Gtk::Label.new("Press keys:\n\tA, B, Ctrl+Shift+C,\n\tor Ctrl+Z"))
+ win.resizable = true
+ win.set_size_request(250, -1)
+ win.signal_connect("destroy") {Gtk.main_quit}
+ win.add_accel_group(ag).show_all
+ Gtk.main