ruby-****@sourc*****
ruby-****@sourc*****
2012年 8月 26日 (日) 04:21:23 JST
-------------------------
REMOTE_ADDR = 70.49.49.99
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-treev-addrnhs
-------------------------
@@ -307,12 +307,14 @@
# Add all of the categories to the combo box.
list.each_with_index do |e, i|
- combobox.append_text(list[i].product) if (e.product_type == $p_category)
+ combobox.append_text(list[i].product) if (e.product_type == P_CATEGORY)
end
- ### Usually you would set the default selection, but for the
- ### sake of learning we leave it unset:
- ### combobox.active = 0
+ ### Usually, after initialiying combobox you would set the default
+ ### selection, but for the sake of learning we leave it unset:
+ ### combobox.active = 0 # set active index (1st row)
+ ### puts "Combobox-text:#{combobox.active_text}"
+
table = Gtk::Table.new(4, 2, false)
table.row_spacings = 5
table.column_spacings = 5
@@ -335,7 +337,9 @@
1, 2, 2, 3, fll_exp, fll_shr, 0, 0)
table.attach(check,
1, 2, 3, 4, fll_exp, fll_shr, 0, 0)
-
+
dialog.vbox.pack_start_defaults(table)
dialog.show_all
@@ -346,22 +348,24 @@
product = entry.text
category = combobox.active_text
buy = check.active?
-
+
if product == "" || category == nil
puts "All of the fields were not correctly filled out!"
puts "DEBUG: prod=(#{product}), ctg=(#{category})"
dialog.destroy
return
end
-
+
model = treeview.model
iter = model.get_iter("0")
# Retrieve an iterator pointing to the selected category.
begin
- name = iter[$prod_index] #<-- same as: name=iter.get_value($prod_index)
+ name = iter[PROD_INDEX] #<-- same as: name=iter.get_value(PROD_INDEX)
break if name == category
-
+
# Gtk::TreeIter#next! - advances iter to point at the
# node following its original position at the current
# level. If there is no next iter, false is returned
@@ -369,24 +371,26 @@
# same as Gtk::TreeIter#first!.
# Returns: true if iter is advanced, false otherwise.
end while iter.next!
-
+
# Convert the category iterator to a path so that it will not
# become invalid and add the new product as a child of the category.
path = iter.path
-
+
child = model.append(iter)
- # child[$buy_index]=buy # same as: model.set_value(child, $buy_index, buy)
- child[$buy_index] = buy
- child[$qty_index] = quantity
- child[$prod_index] = product
+ # child[BUY_INDEX]=buy # same as: model.set_value(child, BUY_INDEX, buy)
+ child[BUY_INDEX] = buy
+ child[QTY_INDEX] = quantity
+ child[PROD_INDEX] = product
# Add the quantity to the running total if it is to be purchased.
if buy
iter = model.get_iter(path)
- qty_value = iter[$qty_index]
+ qty_value = iter[QTY_INDEX]
qty_value += quantity
- iter[$qty_index] = qty_value
+ iter[QTY_INDEX] = qty_value
end
end
dialog.destroy
@@ -400,12 +402,14 @@
# Only remove the row if it is not a root row.
parent = iter.parent
if parent
- buy = iter[$buy_index]
- quantity = iter[$qty_index]
- pqty = parent[$qty_index]
+ buy = iter[BUY_INDEX]
+ quantity = iter[QTY_INDEX]
+ pqty = parent[QTY_INDEX]
if buy
pqty -= quantity
- parent[$qty_index] = pqty
+ parent[QTY_INDEX] = pqty
end
iter = model.get_iter(path)
model.remove(iter)
@@ -431,13 +433,15 @@
# Create a new GtkCellRendererText, add it to the tree
# view column and append the column to the tree view.
renderer = Gtk::CellRendererText.new
- column = Gtk::TreeViewColumn.new("Buy", renderer, "text" => $buy_index)
+ column = Gtk::TreeViewColumn.new("Buy", renderer, "text" => BUY_INDEX)
treeview.append_column(column)
renderer = Gtk::CellRendererText.new
- column = Gtk::TreeViewColumn.new("Count", renderer, "text" => $qty_index)
+ column = Gtk::TreeViewColumn.new("Count", renderer, "text" => QTY_INDEX)
treeview.append_column(column)
renderer = Gtk::CellRendererText.new
- column = Gtk::TreeViewColumn.new("Product", renderer, "text" => $prod_index)
+ column = Gtk::TreeViewColumn.new("Product", renderer, "text" => PROD_INDEX)
treeview.append_column(column)
end
@@ -454,21 +456,25 @@
@product_type, @buy, @quantity, @product = t, b, q, p
end
end
- $buy_index = 0; $qty_index = 1; $prod_index = 2
- $p_category = 0; $p_child = 1
+ BUY_INDEX = 0; QTY_INDEX = 1; PROD_INDEX = 2
+ P_CATEGORY = 0; P_CHILD = 1
list = Array.new
- list[0] = GroceryItem.new($p_category, true, 0, "Cleaning Supplies")
- list[1] = GroceryItem.new($p_child, true, 1, "Paper Towels")
- list[2] = GroceryItem.new($p_child, true, 3, "Toilet Paper")
- list[3] = GroceryItem.new($p_category, true, 0, "Food")
- list[4] = GroceryItem.new($p_child, true, 2, "Bread")
- list[5] = GroceryItem.new($p_child, false, 1, "Butter")
- list[6] = GroceryItem.new($p_child, true, 1, "Milk")
- list[7] = GroceryItem.new($p_child, false, 3, "Chips")
- list[8] = GroceryItem.new($p_child, true, 4, "Soda")
+ list[0] = GroceryItem.new(P_CATEGORY, true, 0, "Cleaning Supplies")
+ list[1] = GroceryItem.new(P_CHILD, true, 1, "Paper Towels")
+ list[2] = GroceryItem.new(P_CHILD, true, 3, "Toilet Paper")
+ list[3] = GroceryItem.new(P_CATEGORY, true, 0, "Food")
+ list[4] = GroceryItem.new(P_CHILD, true, 2, "Bread")
+ list[5] = GroceryItem.new(P_CHILD, false, 1, "Butter")
+ list[6] = GroceryItem.new(P_CHILD, true, 1, "Milk")
+ list[7] = GroceryItem.new(P_CHILD, false, 3, "Chips")
+ list[8] = GroceryItem.new(P_CHILD, true, 4, "Soda")
treeview = Gtk::TreeView.new
+ treeview.tooltip_text = "You can select multiple lines"
+
setup_tree_view(treeview)
# Create a new tree model with three columns, as Boolean,
@@ -486,37 +490,41 @@
# If the product type is a category, count the quantity
# of all of the products in the category that are going
# to be bought.
- if (e.product_type == $p_category)
+ if (e.product_type == P_CATEGORY)
j = i + 1
# Calculate how many products will be bought in
# the category.
- while j < list.size && list[j].product_type != $p_category
+ while j < list.size && list[j].product_type != P_CATEGORY
list[i].quantity += list[j].quantity if list[j].buy
j += 1
end
-
+
# Add the category as a new root (parent) row (element).
parent = store.append(nil)
- # store.set_value(parent, $buy_index, list[i].buy # <= same as below
- parent[$buy_index] = list[i].buy
- parent[$qty_index] = list[i].quantity
- parent[$prod_index] = list[i].product
+ # store.set_value(parent, BUY_INDEX, list[i].buy # <= same as below
+ parent[BUY_INDEX] = list[i].buy
+ parent[QTY_INDEX] = list[i].quantity
+ parent[PROD_INDEX] = list[i].product
# Otherwise, add the product as a child row of the category.
else
child = store.append(parent)
- # store.set_value(child, $buy_index, list[i].buy # <= same as below
- child[$buy_index] = list[i].buy
- child[$qty_index] = list[i].quantity
- child[$prod_index] = list[i].product
+ # store.set_value(child, BUY_INDEX, list[i].buy # <= same as below
+ child[BUY_INDEX] = list[i].buy
+ child[QTY_INDEX] = list[i].quantity
+ child[PROD_INDEX] = list[i].product
end
end
# Add the tree model to the tree view
treeview.model = store
treeview.expand_all
-
+
# Allow multiple rows to be selected at the same time.
treeview.selection.mode = Gtk::SELECTION_MULTIPLE
@@ -526,6 +530,11 @@
add = Gtk::Button.new(Gtk::Stock::ADD)
remove = Gtk::Button.new(Gtk::Stock::REMOVE)
+ remove.tooltip_text = "You can select multiple\nlines and delete them"
add.signal_connect('clicked') { add_product(treeview, list) }
remove.signal_connect('clicked') { remove_products(treeview) }