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-- Copyright 1998 Pirmin Kalberer and others
-- Licensed under Eiffel Forum Freeware License, version 1;
-- (see forum.txt)
--
indexing
description: "Example of a tree widget"
author: "Pirmin Kalberer"
date: "August 1999"
class TREE
inherit
GTK_APPLICATION
creation
make
feature
window: WINDOW_WITH_CLOSE_BUTTON
tree: GTK_TREE
button: GTK_BUTTON
itemnames : ARRAY[STRING] is
once
Result := << "Foo", "Bar", "Baz", "Quux", "Maurice" >>
end
add_item_actions(item: GTK_TREE_ITEM) is
local
item_cmd: TREE_ITEM_CMD
do
!!item_cmd
item.add_action ("select", item_cmd)
!!item_cmd
item.add_action ("deselect", item_cmd)
!!item_cmd
item.add_action ("toggle", item_cmd)
!!item_cmd
item.add_action ("expand", item_cmd)
!!item_cmd
item.add_action ("collapse", item_cmd)
end
make is
local
i, j: INTEGER
swindow: GTK_SCROLLED_WINDOW
subtree: GTK_TREE
sel_cmd: TREE_SELECTION_CMD
item, subitem: GTK_TREE_ITEM
do
initialize_tool_kit
-- create a window with a tree
!!window.make ("Tree Demo")
window.box.set_border_width (10)
window.set_size (150, 300)
!!swindow.make
window.box.pack (swindow, True, True, 0)
!!tree.make
!!sel_cmd
tree.add_action ("select_child", sel_cmd)
swindow.add_widget_with_viewport (tree)
from i := itemnames.lower
until i > itemnames.upper
loop
!!item.make_with_label (itemnames.item(i))
add_item_actions(item)
tree.append_item (item)
item.show
!!subtree.make
!!sel_cmd
subtree.add_action ("select_child", sel_cmd)
item.set_subtree(subtree)
from j := itemnames.lower
until j > itemnames.upper
loop
!!subitem.make_with_label (itemnames.item(j))
add_item_actions(subitem)
subtree.append_item (subitem)
subitem.show
j := j + 1
end
i := i + 1
end
tree.set_view_mode(1)
window.show_all
-- wait_for_events
main_loop
end
end
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