ruby-****@sourc*****
ruby-****@sourc*****
2012年 1月 17日 (火) 03:02:10 JST
-------------------------
REMOTE_ADDR = 184.145.90.60
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk%3A%3AFileChooser
-------------------------
@@ -96,63 +96,74 @@
#!/usr/bin/env ruby
require 'gtk2'
-
- def folder_changed(c_dir, c_file)
- dir = c_dir.filename
- c_file.current_folder = dir
+
+ # It is imperative to understand what is happening in "folder_changed"
+ # First note, that both "folder" (dir) and "file" buttons are passed
+ # into the method. This is because we want the two buttons to be related.
+ # The first "folder" button should provide the directory from which
+ # the second button should by default pick a file.
+
+ def folder_changed(choo_dir, choo_file)
+ dir = choo_dir.filename
+ choo_file.current_folder = dir
end
- def file_changed(c_file, lab)
- file = c_file.filename
+
+ def file_changed(choo_file, lab)
+ file = choo_file.filename
file = "" if file == nil
lab.text = file
end
- window = Gtk::Window.new(Gtk::Window::TOPLEVEL)
- window.set_title "File Chooser Buttons"
+ window = Gtk::Window.new("File Chooser Buttons")
window.border_width = 10
- window.signal_connect('delete_event') { Gtk.main_quit }
-
+ window.signal_connect('destroy') { Gtk.main_quit }
+
label = Gtk::Label.new
chooser_dir = Gtk::FileChooserButton.new(
"Choose a Folder", Gtk::FileChooser::ACTION_SELECT_FOLDER)
chooser_file = Gtk::FileChooserButton.new(
"Choose a File", Gtk::FileChooser::ACTION_OPEN)
-
+
# Let's add an extra widget (a button) to the {{ dialog }}
- extra_button = Gtk::Button.new("Extra button")
- extra_button.signal_connect("clicked") do
- puts "extra button is clicked"
- end
+ extra_button1 = Gtk::Button.new("Extra button")
+ extra_button2 = Gtk::Button.new("Extra button #2")
+ chooser_file.extra_widget = extra_button1
+ chooser_dir.extra_widget = extra_button2
+
chooser_dir.signal_connect('selection_changed') do |w|
- # {{ w }} = {{ FileChooserDialog }}
- w.extra_widget = extra_button
+ # puts "In chooser_dir(): #{w.class}=#{w}" # <<< w=Gtk::FileChooserButton
folder_changed(w, chooser_file)
end
chooser_file.signal_connect('selection_changed') do |w|
+ # puts "In chooser_file(): #{w.class}=#{w}" # <<< w=Gtk::FileChooserButton
file_changed(chooser_file, label)
+ end
+ extra_button1.signal_connect("clicked") do
+ puts "extra button #1 clicked"
+ end
+ extra_button2.signal_connect("clicked") do
+ puts "extra button #2 clicked"
end
+
chooser_dir.current_folder = GLib.home_dir
- # setting a folder on file button has no effect
- # chooser_file.current_folder = GLib.home_dir
-
+ # chooser_file.current_folder = "/tmp" # <--- will have no effect, since callback overrides it
+ # chooser_file.filename = "/home/iwk/wk/a_cfile.c" # <--- would work if file existed
+
filter1 = Gtk::FileFilter.new
filter2 = Gtk::FileFilter.new
-
filter1.name = "Image Files"
filter2.name = "All Files"
-
filter1.add_pattern('*.png')
filter1.add_pattern('*.jpg')
filter1.add_pattern('*.gif')
filter2.add_pattern('*')
-
+ chooser_file.add_filter(filter2) # 1st added will be the default
chooser_file.add_filter(filter1)
- chooser_file.add_filter(filter2)
-
+
vbox = Gtk::VBox.new(true, 5)
vbox.pack_start_defaults(chooser_dir)
vbox.pack_start_defaults(chooser_file)
vbox.pack_start_defaults(label)
-
+
window.add(vbox)
window.show_all
Gtk.main
@@ -682,7 +693,19 @@
nil,
Gtk::FileChooser::ACTION_SAVE,
nil,
- [Gtk::Stock::SAVE, Gtk::Dialog::RESPONSE_ACCEPT], [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
+ [Gtk::Stock::SAVE, Gtk::Dialog::RESPONSE_ACCEPT],
+ [Gtk::Stock::CANCEL, Gtk::Dialog::RESPONSE_CANCEL])
chooser.do_overwrite_confirmation = true
chooser.signal_connect("confirm-overwrite") { |fc|
retval = nil