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# -*- coding: utf-8 -*-
require 'gtk2'
require_relative '../utils'
miquire :mui, 'extension'
miquire :mui, 'contextmenu'
# 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::TreeView
extend Memoist
attr_accessor :creatable, :updatable, :deletable, :dialog_title
type_register
def initialize
super()
initialize_model
@creatable = @updatable = @deletable = true
set_columns
# self.set_enable_search(true).set_search_column(1).set_search_equal_func{ |model, column, key, iter|
# not iter[column].include?(key) }
handle_release_event
handle_row_activated
end
def buttons(box_klass)
box_klass.new(false, 4).closeup(create_button).closeup(update_button).closeup(delete_button) end
def create_button
if not defined? @create_button
@create_button = Gtk::Button.new(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(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(Gtk::Stock::DELETE)
@delete_button.ssc(:clicked) {
record_delete(nil, nil) } end
@delete_button end
protected
def handle_row_activated
self.signal_connect("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.signal_connect('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 initialize_model
set_model(Gtk::ListStore.new(*column_schemer.flatten.map{|x| x[:type]}))
end
def set_columns
column_schemer.inject(0){ |index, scheme|
if scheme.is_a? Array
col = Gtk::TreeViewColumn.new(scheme.first[:label])
col.resizable = scheme.first[:resizable]
scheme.each{ |cell|
if cell[:kind]
cell_renderer = get_render_by(cell, index)
col.pack_start(cell_renderer, cell[:expand])
col.add_attribute(cell_renderer, cell[:kind], index) end
index += 1 }
append_column(col)
else
if(scheme[:label] and scheme[:kind])
col = Gtk::TreeViewColumn.new(scheme[:label], get_render_by(scheme, index), scheme[:kind] => index)
col.resizable = scheme[:resizable]
append_column(col) end
index += 1 end
index }
end
def get_render_by(scheme, index)
kind = scheme[:kind]
renderer = scheme[:renderer]
case
when renderer
if renderer.is_a?(Proc)
renderer.call(scheme, index)
else
renderer.new end
when kind == :text
Gtk::CellRendererText.new
when kind == :pixbuf
Gtk::CellRendererPixbuf.new
when kind == :active
toggled = Gtk::CellRendererToggle.new
toggled.signal_connect('toggled'){ |toggled, path|
iter = model.get_iter(path)
iter[index] = !iter[index]
on_updated(iter) }
toggled
end
end
def column_schemer
[{:kind => :active, :widget => :boolean, :type => TrueClass, :label => '表示'},
{:kind => :text, :widget => :input, :type => String, :label => '名前'},
{:type => Object, :widget => :message_picker},
].freeze
end
memoize :column_schemer
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.selected_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::VBox.new
column_schemer.flatten.each_with_index{ |scheme, index|
case scheme[:widget]
when :message_picker
widget.closeup(Mtk.message_picker(lambda{ |new|
if(new.nil?)
results[index].freeze_ifn
else
results[index] = new.freeze_ifn end }))
when nil
;
else
widget.closeup(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 []))) end }
{ :widget => widget,
:result => lambda{
results } } end
end
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