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# -*- coding: utf-8 -*-
# CRUDなリストビューを簡単に実現するためのクラス
class Gtk::CRUD < Gtk::CompatListView
attr_accessor :creatable, :updatable, :deletable
type_register
def initialize
super()
@creatable = @updatable = @deletable = true
handle_release_event
handle_row_activated
end
def buttons(orientation)
box = Gtk::ButtonBox.new(orientation)
box.spacing = 6
box << create_button << update_button << delete_button
end
def create_button
if not defined? @create_button
@create_button = Gtk::Button.new stock_id: Gtk::Stock::ADD
@create_button.ssc(:clicked) {
record_create(nil, nil) } end
@create_button end
def update_button
if not defined? @update_button
@update_button = Gtk::Button.new stock_id: Gtk::Stock::EDIT
@update_button.ssc(:clicked) {
record_update(nil, nil) } end
@update_button end
def delete_button
if not defined? @delete_button
@delete_button = Gtk::Button.new stock_id: Gtk::Stock::DELETE
@delete_button.ssc(:clicked) {
record_delete(nil, nil) } end
@delete_button end
protected
def handle_row_activated
self.ssc(:row_activated){|view, path, column|
if @updatable and iter = view.model.get_iter(path)
if record = popup_input_window((0...model.n_columns).map{|i| iter[i] })
force_record_update(iter, record) end end }
end
def handle_release_event
self.ssc(:button_release_event){ |widget, event|
if (event.button == 3)
menu_pop(self, event)
true end }
end
def on_created(iter)
end
def on_updated(iter)
end
def on_deleted(iter)
end
private
def get_render_by(scheme, index)
result = super
if result
result
elsif scheme[:kind] == :active
toggled = Gtk::CellRendererToggle.new
toggled.ssc(:toggled) do |toggled, path|
iter = model.get_iter(path)
iter[index] = !iter[index]
on_updated(iter)
false
end
toggled
end
end
def force_record_create(record)
iter = model.model.append
record.each_with_index{ |item, index|
iter[index] = item }
on_created(iter) end
def force_record_update(iter, record)
if defined? model.convert_iter_to_child_iter(iter)
iter = model.convert_iter_to_child_iter iter end
record.each_with_index{ |item, index|
iter[index] = item }
on_updated(iter) end
def force_record_delete(iter)
if defined? model.convert_iter_to_child_iter(iter)
iter = model.convert_iter_to_child_iter iter end
on_deleted(iter)
model.model.remove(iter)
end
def record_create(optional, widget)
if @creatable
record = popup_input_window()
if record
force_record_create(record) end end end
def record_update(optional, widget)
if @updatable
self.selection.selected_each {|model, path, iter|
record = popup_input_window((0...model.n_columns).map{|i| iter[i] })
if record and not model.destroyed?
force_record_update(iter, record) end } end end
def record_delete(optional, widget)
if @deletable
self.selection.each {|model, path, iter|
if Gtk::Dialog.confirm("本当に削除しますか？\n" +
"一度削除するともうもどってこないよ。")
force_record_delete(iter) end } end end
def menu_pop(widget, event)
if(@creatable or @updatable or @deletable)
contextmenu = Gtk::ContextMenu.new
contextmenu.register("新規作成", &method(:record_create)) if @creatable
contextmenu.register("編集", &method(:record_update)) if @updatable
contextmenu.register("削除", &method(:record_delete)) if @deletable
contextmenu.popup(widget, widget) end end
# 入力ウィンドウを表示する
def popup_input_window(defaults = [])
input = gen_popup_window_widget(defaults)
Mtk.scrolled_dialog(dialog_title || "", input[:widget], self.toplevel || self, &input[:result]) end
def gen_popup_window_widget(results = [])
widget = Gtk::Box.new(:vertical, 0)
column_schemer.flatten.each_with_index{ |scheme, index|
case scheme[:widget]
when :message_picker
widget.pack_start(Mtk.message_picker(lambda{ |new|
if(new.nil?)
results[index].freeze_ifn
else
results[index] = new.freeze_ifn
end
}), expand: false)
when nil
;
else
widget.pack_start(widget, Mtk.__send__((scheme[:widget] or :input), lambda{ |new|
if(new.nil?)
results[index].freeze_ifn
else
results[index] = new.freeze_ifn
end
},
scheme[:label], *(scheme[:args].to_a or [])), expand: false)
end
}
{ :widget => widget,
:result => lambda{
results
}
}
end
end
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