Class: TreeViewerWindow

Inherits:
Object
  • Object
show all
Defined in:
lib/hilfer/tree_viewer_window.rb

Overview

Layout of the Tree Viewer Window.

Constant Summary collapse

@@window_count = 
0

Instance Method Summary collapse

Constructor Details

#initialize(root_fs_path, editor) ⇒ TreeViewerWindow

Returns a new instance of TreeViewerWindow.



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# File 'lib/hilfer/tree_viewer_window.rb', line 10

def initialize( root_fs_path, editor )
  @window = Gtk::Window.new
  
  # initialize viewer with a path
  @editor = editor
  
  # location bar
  @location = Gtk::Entry.new
  
  @tv = TreeViewer.new( root_fs_path, editor, @window, @location )
  
  # add scrollbars
  @scroll = Gtk::ScrolledWindow.new( nil, nil )
  @scroll.set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC )
  @scroll.add( @tv.view )

  # expand and fill
  @vbox = Gtk::VBox.new( false )
  @vbox.pack_start( @location, false, false )
  @vbox.pack_start( @scroll, true, true )
  @vbox.focus_chain = [@scroll, @location]

  icon_path = find_icon_path
  if icon_path != nil
    @window.icon = Gdk::Pixbuf.new( icon_path )
  end
  @window.title = 'Hilfer ' + @tv.root_item.path
  @window.add( @vbox )

  # read config. OK, the last parameter is a hack
  # but we need it so that new windows aren't show in
  # exactly the same position and it looks like nothing
  # has happened
  @@window_count += 1
  @hc = HilferConfig.new( CONFIG_FILE, @window, @@window_count )

  # set first line selected
  @tv.select_first

  # The program will directly end upon 'delete_event', ie window close
  @window.signal_connect( 'delete_event' ) do
    # unregister view from editor
    @editor.unregister_view( @tv )
    # finish
    @@window_count -= 1
    if @@window_count == 0
      @hc.save
      # this MUST come before cleanup, otherwise
      # there will be no pipes to write the command to
      @editor.quit if $options[:quit_editor]
      # delete command pipe files
      @editor.cleanup
      Gtk.main_quit
      false
    end
  end
  
  # to allow the sd command to find the correct editor instance
  @window.signal_connect 'focus-in-event' do |widget,event|
    @editor.write_pipe_name
    false
  end

  # to allow the sd command to find the correct editor instance
  @window.signal_connect 'focus-out-event' do |widget,event|
    @editor.write_pipe_name
    false
  end
end

Instance Method Details

#find_icon_path ⇒ Object 



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# File 'lib/hilfer/tree_viewer_window.rb', line 80

def find_icon_path
  $LOAD_PATH.each do |path|
    png_file = Pathname.new( path ) + 'hilfer/hilfer-icon.png'
    return png_file.to_s if png_file.exist?
  end
  nil
end