Class: QDA::GUI::WeftClient

Inherits:
Wx::App
  • Object
show all
Includes:
Broadcaster, Subscriber, Wx
Defined in:
lib/weft/wxgui.rb

Constant Summary collapse

SUBSCRIBABLE_EVENTS = 
QDA::Application::SUBSCRIBABLE_EVENTS +
[ :focus_category, :focus_document, :text_font_changed ]

Instance Attribute Summary collapse

Attributes included from Broadcaster

#bc__subscribers, #bc__subscriptions

Instance Method Summary collapse

Methods included from Subscriber

#subscribe

Methods included from Broadcaster

#broadcast, #delete_subscriber, #event_types, #reset_subscriptions

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/weft/wxgui.rb', line 21

def app
  @app
end

#current_category ⇒ Object

Returns the value of attribute current_category.



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# File 'lib/weft/wxgui.rb', line 22

def current_category
  @current_category
end

#current_document ⇒ Object

Returns the value of attribute current_document.



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# File 'lib/weft/wxgui.rb', line 22

def current_document
  @current_document
end

#display_font ⇒ Object

Returns the value of attribute display_font.



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# File 'lib/weft/wxgui.rb', line 21

def display_font
  @display_font
end

#sidebar ⇒ Object (readonly)

Returns the value of attribute sidebar.



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# File 'lib/weft/wxgui.rb', line 21

def sidebar
  @sidebar
end

#workarea ⇒ Object (readonly)

Returns the value of attribute workarea.



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# File 'lib/weft/wxgui.rb', line 21

def workarea
  @workarea
end

Instance Method Details

#add_icon_dir(dir) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 727

def add_icon_dir(dir)
  @icon_dirs.push(dir)
end

#add_subscriber(subscriber, *events) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 480

def add_subscriber(subscriber, *events)
  super
  subscriber.evt_close do | e | 
    delete_subscriber(subscriber)
    e.skip()
  end
end

#confirm_unsaved_changes ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 686

def confirm_unsaved_changes()
  unless @app and  @app.dirty?
    # there's no open project or there's no unsaved changes
    return true 
  end

  style = NO_DEFAULT|YES|NO|CANCEL|ICON_EXCLAMATION
  confirm = MessageDialog.new( nil, 
                               Lang::UNSAVED_CHANGES_CONFIRM,
                               Lang::UNSAVED_CHANGES_CONFIRM_TITLE, 
                               style )
  case confirm.show_modal()
  when ID_YES
    @app.dbfile ? save_project() : on_saveas_project(nil)
    return true
  when ID_CANCEL
    return false
  when ID_NO
    return true
  end
end

#create_menus ⇒ Object

create menus - also only created once, then manipulated as projects open and close.



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# File 'lib/weft/wxgui.rb', line 88

def create_menus()
     @menu_file = EasyMenu.new(@workarea)
		@menu_file.add_item("&New Project", "Ctrl-N") do | e |
       on_new_project(e)
     end
		@menu_file.add_item("&Open Project", "Ctrl-O") do | e |
       on_open_project(e)
     end
		@menu_file.add_item("&Close Project") do | e | 
       on_close_project(e)
     end
		@menu_file.append_separator()
		@menu_file.add_item("&Save Project", "Ctrl-S") do | e |
       on_save_project(e)
     end
		@menu_file.add_item("Save Project &As", "Ctrl-Shift-S") do | e |
       on_saveas_project(e)
     end
		@menu_file.add_item("&Revert", "Ctrl-Shift-R") do | e |
       on_revert_project(e)
     end
		@menu_file.append_separator()
		@menu_file.add_item("&Exit", "Alt-F4") do | e | 
       @workarea.close() # this will trigger on_quit
     end

     
     @menu_view = EasyMenu.new(@workarea)
     if WINDOW_MODE == :MDI
       @menu_view.add_item("&Documents and Categories", "",
                            Wx::ITEM_CHECK) { | e | on_toggle_dandc(e) }
     end

		@menu_view.add_item("&Set Display Font") do | e | 
       on_set_display_font(e)
     end
     
		@menu_project = EasyMenu.new(@workarea)
		@menu_project.add_item("&Import Document") do | e | 
       on_import_document(e) 
     end
     @menu_project.add_item("Delete Document") do | e |
       on_delete_document(e)
     end
     @menu_project.append_separator()
		@menu_project.add_item("&Add Category") do | e | 
       on_add_category() 
     end
     @menu_project.add_item("Delete Category") do | e |
       on_delete_category(e)
     end        
     @menu_project.append_separator()
		@menu_project.add_item("&Export") do | e | 
       on_export(e)
     end
     
# 		menu_project.append(MENU_IMPORT_DOCUMENT_CLIPBOARD , 
# 							"&Import Document...\t", 'Import')
# 		@workarea.evt_menu(MENU_IMPORT_DOCUMENT_CLIPBOARD) do | e | 
#           on_paste_import_document(e) 
#         end

		@menu_search = EasyMenu.new(@workarea)
		@menu_search.add_item("&Search") { | e | on_search(e) }

		@menu_search.add_item("&Query") { | e | on_query(e) }
		@menu_search.add_item("&Review Coding") { | e | on_review_coding(e) }
		@menu_search.append_separator()
		@menu_search.add_item("Reindex &Documents") do | e |  
       on_search_reindex(e)
     end

     # hide script in release builds
     if ::WEFT_TESTING
       @menu_script = EasyMenu.new(@workarea)
       @menu_script.add_item("&New") { | e | on_start_script(e) }
     end


@menu_help = EasyMenu.new(@workarea)
@menu_help.add_item("&Help") { | e | on_help(e) }
@menu_help.add_item("&About") { | e | on_help_about(e) }
     menu_state_no_project()
     
		menu_bar = Wx::MenuBar.new()
     menu_bar.append(@menu_file, "&File")
		menu_bar.append(@menu_view, "&View")
		menu_bar.append(@menu_project, "&Project")
		menu_bar.append(@menu_search, "&Search")
		menu_bar.append(@menu_script, "&Script") if ::WEFT_TESTING
     menu_bar.append(@menu_help, "&Help") 

     @workarea.menu_bar = menu_bar
end

#create_workarea ⇒ Object

create the workarea - would normally only be called once in a whole execution



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# File 'lib/weft/wxgui.rb', line 79

def create_workarea()
		@workarea = WorkArea.new(self)
  # TODO - nice windows icon
  @workarea.set_icon( fetch_icon("weft") )
  @workarea.evt_close() { | e | on_quit(e) }
end

#fetch_icon(icon) ⇒ Object

hunt through icon directories to find an icon icon - returns a Wx::Icon constructed from that file, or raise an exception. icon should be the name of an icon file without the extension. This method will search only for icons appropriate to the current platform. Raises a RuntimeError if no icon is found.

Raises:

  • (RuntimeError) 


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# File 'lib/weft/wxgui.rb', line 714

def fetch_icon(icon)
  ICON_EXTS.each do | type |
    maybe_icon_file = "%s.%s" % [ icon, type.extension ]
    @icon_dirs.each do | dir | 
      if File.exist?( f = File.join(dir, maybe_icon_file) )
        return Wx::Icon.new( f, type.constant )
      end
    end
  end
  
  raise RuntimeError, "Could not find icon #{icon}"
end

#finish ⇒ Object

forcibly closes all the windows - does not check for project saved state - just ends everything



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# File 'lib/weft/wxgui.rb', line 73

def finish()
  @workarea.close()
end

#import_document ⇒ Object

import a document



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# File 'lib/weft/wxgui.rb', line 275

def import_document()
		file_dialog = ImportFileDialog.new(@workarea, QDA::Document)
  return unless file_dialog.show_modal() == Wx::ID_OK
  file_dialog.each_with_path do | fpath, fname |
       Wx::BusyCursor.busy do
         prog = StageProgressDialog.new(@workarea, "Importing document",
                                        "Reading file #{fname}")
         begin
           doc = Filters.import_file(Document, fpath) do | doc, filter |
             doc.title = fname.gsub(/\.\w+$/, '')
           end
           prog.step('Saving document')
           @app.save_document(doc, true)
           prog.title = "Importing document '#{doc.title}'"
           prog.step("Indexing document '#{doc.title}'")
           indexer = QDA::WordIndexer.new()
           indexer.feed(doc)
           prog.step("Saving word indexes for '#{doc.title}'")
           wordcount = indexer.words.keys.length
           if wordcount > 0
             prog.retarget(wordcount)
             @app.save_reverse_index(doc.dbid, indexer.words, prog)
           end
           prog.finish()
         rescue FilterError, UserAbortedException, 
                IOError, QDA::Backend::BackendError => err
           prog.finish() if prog
           app.delete_document(doc) if doc && doc.dbid
           ErrorDialog.display( "Document not imported", err.to_s() )
           @workarea.cursor = Wx::Cursor.new(Wx::CURSOR_ARROW)
         end
       end
		end
end

#main_loop ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 52

def main_loop()
  super()
rescue Exception => err
  if REPORT_CRASHES and not err.kind_of? SystemExit
    workarea.hide_all()
    CrashReportDialog.display(self, err)
  end
  Kernel.raise(err)
end

#menu_state_no_project ⇒ Object

updates the state of the menu above the main workarea to its initial state with no active project



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# File 'lib/weft/wxgui.rb', line 637

def menu_state_no_project()
  @menu_file.disable_items(:close_project, :save_project,
                           :save_project_as, :revert)
  @menu_project.disable_items(:import_document, :delete_document,
                              :add_category, :delete_category,
                              :export)
		@menu_search.disable_items( :search, :query, :review_coding,
                              :reindex_documents)
		@menu_script.disable_items(:new) if ::WEFT_TESTING
		if WINDOW_MODE == :MDI
		  @menu_view.disable_item(:documents_and_categories, :set_display_font)
  else
    @menu_view.disable_item(:set_display_font)
  end
end

#menu_state_open_project ⇒ Object

updates the state of the menu above the main workarea to reflect the fact that a project has been opened.



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# File 'lib/weft/wxgui.rb', line 655

def menu_state_open_project()
  # :revert and :save_project are enabled when a change has been made
  @menu_file.enable_items(:close_project, :save_project_as)
  @menu_project.enable_items( :import_document, :delete_document,
                              :add_category, :delete_category,
                              :export)
		@menu_search.enable_items( :search, :query, :review_coding, 
                             :reindex_documents)
		@menu_script.enable_items(:new) if ::WEFT_TESTING
		if WINDOW_MODE == :MDI
    @menu_view.enable_item(:documents_and_categories, :set_display_font)
    @menu_view.check_item(:documents_and_categories)
  else
    @menu_view.enable_item(:set_display_font)        
  end
end

#notify(ev, content = nil) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 488

def notify(ev, content = nil)
  if ev == :saved or ev == :started
    @menu_file.disable_items(:save_project, :revert)
  else
    @menu_file.enable_items(:save_project)
    @menu_file.enable_items(:revert) if app.dbfile
  end
  broadcast(ev, content)
end

#on_add_category ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 322

def on_add_category()
  dialog = Wx::TextEntryDialog.new(@workarea.d_and_c, "Add Category\n",
                                   "Enter the new category name",
                                   "", Wx::OK | Wx::CANCEL)
  return unless dialog.show_modal() == Wx::ID_OK

  # go ahead and make the new category
  parent = self.current_category || @app.get_root_category('CATEGORIES')  
  name   = dialog.get_value()
  begin
    cat = QDA::Category.new(name, parent )
    @app.save_category(cat)
  rescue QDA::BadNameError
    ErrorDialog.display( Lang::BAD_CATEGORY_NAME_TITLE, 
                         Lang::BAD_CATEGORY_NAME_WARNING )
    return false
  rescue QDA::NotUniqueNameError
    ErrorDialog.display( Lang::DUPLICATE_CATEGORY_NAME_TITLE, 
                         Lang::DUPLICATE_CATEGORY_NAME_WARNING )
    return false
    
  end
end

#on_category_open(cat) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 254

def on_category_open(cat)
  if not cat.codes
    cat = @app.get_category(cat.dbid)
  end
     @workarea.launch_window(CategoryWindow, cat)
end

#on_close_project(e) ⇒ Object

Tries to close the current project, checking for unsaved changes. Returns true if the currently open project was closed, or false if it was not. If there was no currently open project, always returns true.



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# File 'lib/weft/wxgui.rb', line 676

def on_close_project(e)
  return true unless @app
  if confirm_unsaved_changes()
    unpopulate()
    return true
  else
    return false
  end
end

#on_delete_category(e = nil) ⇒ Object

deletes the currently active category



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# File 'lib/weft/wxgui.rb', line 347

def on_delete_category(e = nil)
  return false unless current_category
  msg = Lang::DELETE_CATEGORY_WARNING % current_category.name
  confirm = SuppressibleConfirmDialog.display( 'DeleteCategory',
                                          Lang::DELETE_CATEGORY_TITLE,
                                          msg )
  
  return false unless confirm == Wx::ID_YES
  Wx::BusyCursor.busy() do
    @app.delete_category(current_category)
  end
end

#on_delete_document(e = nil) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 310

def on_delete_document(e = nil)
  return unless current_document
  msg = Lang::DELETE_DOCUMENT_WARNING % current_document.title
  confirm = SuppressibleConfirmDialog.display('DeleteDocument',
                                          Lang::DELETE_DOCUMENT_TITLE,
                                          msg )
  return unless confirm == Wx::ID_YES
  Wx::BusyCursor.busy do
    @app.delete_document( current_document )
  end
end

#on_document_open(doc, offset = 0) ⇒ Object

opens the document identified by doc_id, and, if offset is supplied, jumps to that point in the document



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# File 'lib/weft/wxgui.rb', line 185

def on_document_open(doc, offset = 0)
     dbid = doc.is_a?(Document) ? doc.dbid : doc
		doc = @app.get_document(dbid)
     win = @workarea.launch_window(DocumentWindow, doc)
     win.jump_to(offset)
end

#on_export(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 361

def on_export(e)
  a_win = @workarea.active_child
  return unless a_win.respond_to?(:object)
  obj = a_win.object
  file_dialog = ExportFileDialog.new(@workarea, obj)
  return unless file_dialog.show_modal() == Wx::ID_OK
  Wx::BusyCursor.busy do
    filter = file_dialog.filter.new(app)
    File.open(file_dialog.get_path, 'w') do | outfile |
      filter.write(obj, outfile)
    end
  end
end

#on_help(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 246

def on_help(e)
  InformationDialog.display('Help', Lang::HELP_HELP_MESSAGE)
end

#on_help_about(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 250

def on_help_about(e)
  InformationDialog.display('About', Lang::HELP_ABOUT_MESSAGE)
end

#on_import_document(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 270

def on_import_document(e)
  import_document()
end

#on_import_n6(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 568

def on_import_n6(e)
     wildcard = "N6 Project Files (*.stp)|*.stp"
		file_dialog = Wx::FileDialog.new(@workarea, "Import N6 Project", "",  
                                      "", wildcard )
		if file_dialog.show_modal() == Wx::ID_OK
       Wx::BusyCursor.busy do 
         src = QDA::Application.new()
         src.extend(QDA::Backend::N6)
         src.start( :basedir => file_dialog.get_directory() )
         on_new_project(nil)

         @app.batch() do
           src.get_all_docs.each do | d |
             d.dbid = nil
             @app._save_document(d)
             broadcast(:document_added, d)
           end
         
           save_down = Proc.new do | cat |
             if cat.parent.nil?
               cat.name = "IMPORTED"
             end
             @app._save_category(cat)
             broadcast(:category_added, cat)

             cat.children.each { | c | save_down.call(c) }
           end

           save_down.call(src.get_all_categories)
         end
       end
		end
end

#on_init ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 30

def on_init()
  self.app_name = 'WeftQDA'
  # retrieve font
  conf = Wx::ConfigBase.get()
  conf.path = '/DisplayFont'
  @display_font = Wx::Font.new( conf.read_int('size', 12), 
                                conf.read_int('family', Wx::DEFAULT),
                                conf.read_int('style', Wx::NORMAL),
                                conf.read_int('weight', Wx::NORMAL),
                                false,
                                conf.read('face', '') )
  # see wxgui/lang.rb
  Lang::set_language('En')
  @icon_dirs = []
  add_icon_dir( File.join( WEFT_SHAREDIR, 'icons') )
  add_icon_dir( File.join( File.dirname( __FILE__ ), 'wxgui') )
  create_workarea()
  create_menus()
		@workarea.show()
end

#on_new_project(e) ⇒ Object

Starts a new project



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# File 'lib/weft/wxgui.rb', line 558

def on_new_project(e)
     return unless on_close_project(e)
     # TODO - this process is too protracted
     self.app = QDA::Application.new(QDA::Backend::SQLite)
     app.start(:dbfile => nil)
     app.install_clean()
     app.set_up()
     populate()
end

#on_open_project(e) ⇒ Object

returns true if a new project was started, false if not



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# File 'lib/weft/wxgui.rb', line 456

def on_open_project(e)
     return false unless on_close_project(e)
		file_dialog = FileDialog.new( @workarea, "Open Project",
                                   "",  "", 
                                   "Weft QDA Project Files (*.qdp)|*.qdp" )
     return false unless file_dialog.show_modal() == Wx::ID_OK
     
     open_project( file_dialog.get_path() )
end

#on_print(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 375

def on_print(e)
  a_win = @workarea.active_child
  return unless a_win.respond_to?(:object)
  obj = a_win.object
  htmlprint = Wx::HtmlEasyPrinting.new('Weft print', @workarea)
  htmlprint.page_setup()
  file_dialog = ExportFileDialog.new(@workarea, obj)
  return unless file_dialog.show_modal() == Wx::ID_OK
  Wx::BusyCursor.busy do
    filter = file_dialog.filter.new(app)
    File.open(file_dialog.get_path, 'w') do | outfile |
      filter.write(obj, outfile)
    end
  end      
end

#on_query(e) ⇒ Object

run a new query



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# File 'lib/weft/wxgui.rb', line 391

def on_query(e)
  q_id = app.get_preference('NextQuery') || 1
  app.save_preference('NextQuery', q_id + 1)
  q = Query.new()
  q.dbid = q_id
  @workarea.launch_window(QueryWindow, q)
end

#on_quit(event) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 434

def on_quit(event)
  if on_close_project(event)
    # remember window position and size
    @workarea.remember_size()
    event.skip()
    exit() # required to exit reliably on Linux
  else
    event.veto()
  end
end

#on_resize(e) ⇒ Object

should resize the toolbar window in proportion to the main window - seems to cause it to go corrupted looking though



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# File 'lib/weft/wxgui.rb', line 510

def on_resize(e)
  # if @tools
  #   @tools.set_client_size( proportional_size(0.3, 0.995) )
  # end

end

#on_revert_project(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 445

def on_revert_project(e)
  result = WarningDialog.display( Lang::REVERT_WARNING_TITLE,
                                  Lang::REVERT_WARNING_MESSAGE )
  return unless result == Wx::ID_OK
  
  the_file = @app.dbfile
  unpopulate()
  open_project(the_file)
end

#on_review_coding(e) ⇒ Object

run a new query



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# File 'lib/weft/wxgui.rb', line 400

def on_review_coding(e)
  q_id = @app.get_preference('NextReview') || 1
  app.save_preference('NextReview', q_id + 1)
  q = CodeReview.new()
  q.dbid = q_id
  @workarea.launch_window(CodeReviewWindow, q)
end

#on_save_project(e) ⇒ Object

Handles requests to save the project. Do nothing if no project is open, prompt the user to supply a filename if this is a new project, otherwise just save the project.



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# File 'lib/weft/wxgui.rb', line 520

def on_save_project(e)
  return unless app
  return on_saveas_project(e) unless app.dbfile
  save_project()
end

#on_saveas_project(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 531

def on_saveas_project(e)
  wildcard = "Weft QDA Project Files (*.qdp)|*.qdp"
		file_dialog = Wx::FileDialog.new(@workarea, "Save Project As",
				 "",  "", wildcard, Wx::SAVE)

		if file_dialog.show_modal() == Wx::ID_OK
		  new_file = file_dialog.get_path()

		  if FileTest.exists?(new_file)
			confirm = MessageDialog.new(nil, Lang::FILE_ALREADY_EXISTS,
				"File already exists", 
				NO_DEFAULT|OK|CANCEL|ICON_EXCLAMATION)
			case confirm.show_modal()
			when ID_OK
			  # ok
			when ID_CANCEL
			  return()
			else
			  raise "Bad Status"
			end
		  end
    Wx::BusyCursor.busy() { app.save(new_file) }
  end
end

#on_search(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 408

def on_search(e)
		search = SearchDialog.new(@workarea)
		if search.show_modal() == Wx::ID_OK
       Wx::BusyCursor.busy do
         options = { :wrap_both => search.expand,
                     :case_sensitive => search.case_sensitive,
                     :whole_word => search.whole_word }
         
         text_results = app.get_search_fragments(search.term, options)
         title = "'#{search.term}' (#{Lang::SEARCH_RESULTS}) "

         # create a category from the returned fragments
         search_parent = @app.get_root_category('SEARCHES')
         search_cat = Category.new( title, search_parent )
         search_cat.codetable_init() # urgh
         text_results.each do | docid, fragments |
           fragments.each do | f | 
             search_cat.code( f.docid, f.offset, f.length )
           end
         end
         app.save_category(search_cat, true)
         @workarea.launch_window(CategoryWindow, search_cat)
       end
		end		
end

#on_search_reindex(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 217

def on_search_reindex(e)
  confirm = WarningDialog.display( Lang::REINDEX_DOCS_WARNING_TITLE, 
                                   Lang::REINDEX_DOCS_WARNING )
  return true unless confirm == Wx::ID_YES
  
  Wx::BusyCursor.busy do
    begin
      docs = @app.get_all_docs()
      prog =  StageProgressDialog.new(@workarea, 
                                      "Reindexing documents", '')
      
      prog.retarget(docs.length + 2)
      docs.each do | doc |
        prog.step("Indexing document #{doc.title}")
        doc = @app.get_doc(doc.dbid)
        @app.drop_reverse_indexes(doc.dbid)
        indexer = QDA::WordIndexer.new()
        indexer.feed(doc)
        @app.save_reverse_index(doc.dbid, indexer.words)
      end
      prog.finish()
    rescue UserAbortedException => err
      prog.finish() if prog
      ErrorDialog.display("Reindex halted", err.to_s())
      @workarea.cursor = Wx::NORMAL_CURSOR
    end
  end
end

#on_set_display_font(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 207

def on_set_display_font(e)
  font_data = Wx::FontData.new()
  font_data.initial_font = display_font
  dialog = Wx::FontDialog.new(@workarea, font_data)
  return unless dialog.show_modal() == Wx::ID_OK

  # actually find the newly selected font and communicate new choice
  self.display_font = dialog.font_data.chosen_font()
end

#on_start_script(e) ⇒ Object

run a new query



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# File 'lib/weft/wxgui.rb', line 262

def on_start_script(e)
  s_id = @app.get_preference('NextScript') || 1
  @app.save_preference('NextScript', s_id + 1)
  s = Script.new()
  s.dbid = s_id
  @workarea.launch_window(ScriptWindow, s)
end

#on_toggle_dandc(e) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 498

def on_toggle_dandc(e)
  if @workarea.d_and_c_visible?
    @workarea.hide_d_and_c()
    @menu_view.uncheck_items(:documents_and_categories)
  else
    @workarea.show_d_and_c()
    @menu_view.check_items(:documents_and_categories)
  end
end

#open_project(pfile) ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 466

def open_project(pfile)
  @workarea.set_cursor( Wx::BUSY_CURSOR )
  self.app = QDA::Application.new()
  app.extend( QDA::Backend::SQLite )
  app.start(:dbfile => pfile)
  populate()
rescue ArgumentError, NotImplementedError => err
  ErrorDialog.display(Lang::OPEN_PROJECT_ERROR_TITLE, err.to_s)
  self.app = nil
  return false
ensure
    @workarea.set_cursor( Wx::NORMAL_CURSOR )
end

#populate ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 731

def populate()
     unless app
       raise "Populate called without an @app set"
     end
     @workarea.show_d_and_c()
     # restore windows
     @workarea.restore_layouts

     menu_state_open_project()
end

#save_project ⇒ Object 



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# File 'lib/weft/wxgui.rb', line 526

def save_project()
  @workarea.remember_layouts()
  Wx::BusyCursor.busy() { app.save }
end

#unpopulate ⇒ Object

unloads the currently loaded Weft instance and tidies up the GUI



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# File 'lib/weft/wxgui.rb', line 624

def unpopulate()
  return unless app

  @workarea.close_all()
  
  menu_state_no_project()
  self.app = nil
  reset_subscriptions()
  @workarea.subscribe(self, :all)
end