Module: Knj::Gtk2::Tv
- Defined in:
- lib/knj/gtk2_tv.rb
Overview
This module contains various helper-methods for handeling stuff regarding treeviews.
Constant Summary collapse
- @@editable_text_callbacks =
{ :datetime => { :value => proc{ |data| begin Datet.in(data[:value]).dbstr rescue ArgumentError raise "Invalid timestamp entered." end }, :value_set => proc{ |data| Datet.in(data[:value]).out } }, :time_as_sec => { :value => proc{ |data| Knj::Strings.human_time_str_to_secs(data[:value]) }, :value_set => proc{ |data| Knj::Strings.secs_to_human_time_str(data[:value]) } }, :int => { :value => proc{ |data| data[:value].to_i.to_s } }, :human_number => { :value => proc{ |data| Knj::Locales.number_in(data[:value]) }, :value_set => proc{ |data| Knj::Locales.number_out(data[:value], data[:col_data][:decimals]) } } }
Class Method Summary collapse
-
.append(tv, data) ⇒ Object
Appends data to the treeview.
- .editable_text_renderers_to_model(args) ⇒ Object
-
.init(tv, columns) ⇒ Object
Initializes a treeview with a model and a number of columns.
-
.sel(tv) ⇒ Object
Gets the selected data from the treeview.
Class Method Details
.append(tv, data) ⇒ Object
Appends data to the treeview.
Examples
Knj::Gtk2::Tv.append(treeview, [1, “Kasper”])
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# File 'lib/knj/gtk2_tv.rb', line 84 def self.append(tv, data) iter = tv.model.append count = 0 data.each do |value| col = tv.columns[count] renderer = col.cell_renderers.first if renderer.is_a?(Gtk::CellRendererText) iter[count] = value.to_s elsif renderer.is_a?(Gtk::CellRendererToggle) iter[count] = Knj::Strings.yn_str(value, 1, 0) elsif renderer.is_a?(Gtk::CellRendererCombo) iter[count] = value.to_s else raise "Unknown renderer: '#{renderer.class.name}'." end count += 1 end return {:iter => iter} end |
.editable_text_renderers_to_model(args) ⇒ Object
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# File 'lib/knj/gtk2_tv.rb', line 154 def self.editable_text_renderers_to_model(args) args[:id_col] = 0 if !args.key?(:id_col) args[:cols].each do |col_no, col_data| col_data = {:col => col_data} if col_data.is_a?(Symbol) if col_data.key?(:type) if callbacks = @@editable_text_callbacks[col_data[:type]] col_data[:value_callback] = callbacks[:value] if callbacks.key?(:value) col_data[:value_set_callback] = callbacks[:value_set] if callbacks.key?(:value_set) else raise "Invalid type: '#{col_data[:type]}'." end end renderer = args[:renderers][col_no] if args[:on_edit] renderer.signal_connect("editing-started") do |renderer, row_no, path| iter = args[:tv].model.get_iter(path) id = args[:tv].model.get_value(iter, args[:id_col]) model_obj = args[:ob].get(args[:model_class], id) args[:on_edit].call(:renderer => renderer, :row_no => row_no, :path => path, :args => args, :model => model_obj, :col_no => col_no, :col_data => col_data) end end if args[:on_edit_done] renderer.signal_connect("editing-canceled") do |renderer| args[:on_edit_done].call(:renderer => renderer, :done_mode => :canceled, :args => args, :col_no => col_no, :col_data => col_data) end end if renderer.is_a?(Gtk::CellRendererText) renderer.editable = true renderer.signal_connect("edited") do |renderer, row_no, value| iter = args[:tv].model.get_iter(row_no) id = args[:tv].model.get_value(iter, args[:id_col]) model_obj = args[:ob].get(args[:model_class], id) cancel = false callback_hash = {:args => args, :value => value, :model => model_obj, :col_no => col_no, :col_data => col_data} if args[:on_edit_done] args[:on_edit_done].call(:renderer => renderer, :row_no => row_no, :done_mode => :canceled, :args => args, :model => model_obj, :col_no => col_no, :col_data => col_data) end if col_data[:value_callback] begin value = col_data[:value_callback].call(callback_hash) callback_hash[:value] = value rescue => e Knj::Gtk2.msgbox(e., "warning") cancel = true end end if !cancel begin args[:change_before].call(callback_hash) if args[:change_before] rescue => e cancel = true Knj::Gtk2.msgbox(e., "warning") end if !cancel begin model_obj[col_data[:col]] = value value = col_data[:value_set_callback].call(callback_hash) if col_data.key?(:value_set_callback) iter[col_no] = value rescue => e Knj::Gtk2.msgbox(e., "warning") ensure args[:change_after].call(callback_hash) if args[:change_after] end end end end elsif renderer.is_a?(Gtk::CellRendererToggle) renderer.activatable = true renderer.signal_connect("toggled") do |renderer, path, value| iter = args[:tv].model.get_iter(path) id = args[:tv].model.get_value(iter, 0) model_obj = args[:ob].get(args[:model_class], id) callback_hash = {:args => args, :value => value, :model => model_obj, :col_no => col_no, :col_data => col_data} if col_data[:value_callback] begin value = col_data[:value_callback].call(callback_hash) callback_hash[:value] = value rescue => e Knj::Gtk2.msgbox(e., "warning") cancel = true end end if !cancel args[:change_before].call(callback_hash) if args[:change_before] begin if model_obj[col_data[:col]].to_i == 1 model_obj[col_data[:col]] = 0 iter[col_no] = 0 else model_obj[col_data[:col]] = 1 iter[col_no] = 1 end ensure args[:change_after].call(:args => args) if args[:change_after] end end end else raise "Invalid cellrenderer: '#{renderer.class.name}'." end end end |
.init(tv, columns) ⇒ Object
Initializes a treeview with a model and a number of columns. Returns a hash containing various data like the renderers.
Examples
Knj::Gtk2::Tv.init(treeview, [“ID”, “Name”])
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# File 'lib/knj/gtk2_tv.rb', line 6 def self.init(tv, columns) ret = { :renderers => [] } model_args = [] columns.each do |args| if args.is_a?(String) args = {:type => :string, :title => args} end if args[:type] == :string model_args << String elsif args[:type] == :toggle model_args << Integer elsif args[:type] == :combo model_args << String else raise "Invalid type: '#{args[:type]}'." end end list_store = Gtk::ListStore.new(*model_args) tv.model = list_store tv.reorderable = true count = 0 columns.each do |args| if args.is_a?(String) args = {:type => :string, :title => args} end if args[:type] == :string if args[:markup] col_args = {:markup => count} else col_args = {:text => count} end renderer = Gtk::CellRendererText.new col = Gtk::TreeViewColumn.new(args[:title], renderer, col_args) col.resizable = true tv.append_column(col) elsif args[:type] == :toggle renderer = Gtk::CellRendererToggle.new col = Gtk::TreeViewColumn.new(args[:title], renderer, :active => count) tv.append_column(col) elsif args[:type] == :combo renderer = Gtk::CellRendererCombo.new renderer.text_column = 0 if args[:markup] col_args = {:markup => count} else col_args = {:text => count} end col = Gtk::TreeViewColumn.new(args[:title], renderer, col_args) renderer.model = args[:model] if args.key?(:model) renderer.has_entry = args[:has_entry] if args.key?(:has_entry) tv.append_column(col) else raise "Invalid type: '#{args[:type]}'." end col.reorderable = true col.sort_column_id = count ret[:renderers] << renderer count += 1 end return ret end |
.sel(tv) ⇒ Object
Gets the selected data from the treeview.
Examples
Knj::Gtk2::Tv.sel(treeview) #=> [1, “Kasper”]
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# File 'lib/knj/gtk2_tv.rb', line 111 def self.sel(tv) selected = tv.selection.selected_rows return nil if !tv.model or selected.size <= 0 iter = tv.model.get_iter(selected[0]) returnval = [] columns = tv.columns count = 0 columns.each do |column| returnval[count] = iter[count] count += 1 end return returnval end |