Class: CanvasMap

Inherits:
Gtk::VBox
  • Object
show all
Defined in:
lib/gui/canvas_map.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CanvasMap

Returns a new instance of CanvasMap.



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# File 'lib/gui/canvas_map.rb', line 260

def initialize()
super()
@bg_image_enable=false
@dragging = false
@cursor_x=nil
@cursor_y=nil
@drawing_selection=false
@selection=nil
@fullscreen=false
show()

# Create the canvas
@canvas = Goo::Canvas.new

#here we set the background color
set_rgb($config.rgb[0].to_f, $config.rgb[1].to_f, $config.rgb[2].to_f)

# Setup canvas items
root = @canvas.root_item
   
# Layout the stuff
table = Gtk::Table.new(2, 2, false)
pack_start(table,true)
   
table.show()
table.attach(@canvas,
0, 1, 0, 1,
Gtk::EXPAND | Gtk::FILL | Gtk::SHRINK,
Gtk::EXPAND | Gtk::FILL | Gtk::SHRINK,
0, 0)

@canvas.show()        
@canvas.signal_connect_after("key_press_event") do |item, event|    
  if !busy?()
     key_press(item, event)
  end
end

@canvas.signal_connect("scroll_event") do  |w, event| 
  if !busy?()
	 if event.state & Gdk::Window::CONTROL_MASK == Gdk::Window::CONTROL_MASK
       case event.direction
       when Gdk::EventScroll::UP
         node_view_zoom_in()
       when Gdk::EventScroll::DOWN
         node_view_zoom_out()
       end
	 end
  end
  #use update to cute scroll_event forwarding @canvas.root_item
  @canvas.update()
end

@canvas.signal_connect("button_press_event") do |w, event|
  if busy?()
     next
  end
  #puts "in canvas button press #{w}"

  xw, yw = w.convert_to_pixels(event.x,event.y)
  cvitem=item_at(xw, yw)
  if (cvitem == nil) || (cvitem.parent == @bg_img if defined?(@bg_img))      
    if event.state & Gdk::Window::CONTROL_MASK != Gdk::Window::CONTROL_MASK
      if $map == nil
        $network[ROOTMAPADDR].node_view.unselect()
      else
        $canvas.get_selected_node().each {|n|
          n.node_view.unselect()
        }
      end
    end

    if (event.event_type == Gdk::Event::BUTTON_PRESS)
	#puts "event button #{event.button}"
      if event.button == 8
        set_map($network[$map].map) unless $map == nil
      end
      if event.button == 9
        if $map == nil
          set_map(ROOTMAPADDR)
        else
          if $network[get_map()].nb_network == 1
            $network[get_map()].network.each_key {|k| set_map(k)}
          end
        end
      end

      if event.button == 3 #right click
        #show popup menu
        b = event.button
        t = event.time
        popup_menu = Gtk::Menu.new
        add_node=Gtk::ImageMenuItem.new("Add node")
        image_add_node = Gtk::Image.new()
        image_add_node.set_stock(Gtk::Stock::ADD)
        add_node.set_image(image_add_node)
        popup_menu.append(add_node)
        if get_map() != nil
          add_sub_menu=Gtk::Menu.new
          add_sub_menu.append(add_host=Gtk::MenuItem.new("Add host"))
          add_host.signal_connect('button-press-event') {
            addnodewin
            popup_menu.destroy
          }
          add_sub_menu.append(add_host_range_item=Gtk::MenuItem.new("Add host range"))
          add_host_range_item.signal_connect('button-press-event') {
            add_host_range
            popup_menu.destroy
          }
          add_sub_menu.append(add_network=Gtk::MenuItem.new("Add network"))
          add_network.signal_connect('button-press-event') {
            addnetworkwin
            popup_menu.destroy
          }
        end
        add_node.set_submenu(add_sub_menu)

        find_node=Gtk::ImageMenuItem.new("Find node")
        image_find_node = Gtk::Image.new()
        image_find_node.set_stock(Gtk::Stock::FIND)
        find_node.set_image(image_find_node)
        popup_menu.append(find_node)

        if $event_win.visible?
          popup_menu.append(ewin_hide=Gtk::MenuItem.new("Hide event log"))
        else
          popup_menu.append(ewin_show=Gtk::MenuItem.new("Show event log"))
        end
        popup_menu.append(layout_grid=Gtk::MenuItem.new("Grid layout"))

        map_up=Gtk::ImageMenuItem.new("Go up")
        image_map_up = Gtk::Image.new()
        image_map_up.set_stock(Gtk::Stock::GO_UP)
        map_up.set_image(image_map_up)
        popup_menu.append(map_up)

        if $canvas.fullscreen?()
          popup_menu.append(Gtk::SeparatorMenuItem.new)
          popup_menu.append(exit_fullscreen=Gtk::MenuItem.new("Unfullscreen"))
          exit_fullscreen.signal_connect('button-press-event') {
            toggle_fullscreen()
            popup_menu.destroy
          }
        end

        if $map == nil
          layout_grid.set_sensitive(false)
          map_up.set_sensitive(false)
          add_node.set_sensitive(false)
        end
        popup_menu.show_all
        popup_menu.popup(nil,nil,b,t)

        find_node.signal_connect('button-press-event') {
          findnodewin
          popup_menu.destroy
        }
        if (ewin_hide)
          ewin_hide.signal_connect('button-press-event') {
            $event_win.hide()
            popup_menu.destroy
          }
        end
        if (ewin_show)
          ewin_show.signal_connect('button-press-event') {
            $event_win.show()
            popup_menu.destroy
          }
        end
        layout_grid.signal_connect('button-press-event') {
          layout_grid($map)
          popup_menu.destroy
        }
        map_up.signal_connect('button-press-event') {
          if $map != nil
            set_map($network[$map].map)
          end
          popup_menu.destroy
        }
      else	  
        #draw selection with other button
        @drawing_selection=true
        @cursor_x=event.x
        @cursor_y=event.y
      end
    end
  end
end

@canvas.signal_connect_after("button_release_event") do |w, event|
  if busy?()
    next
  end
  #puts "here canvas signal connect button release"
  if @drawing_selection
    #we select node in rectangle selection
    cursor_x, cursor_y = w.convert_to_pixels(@cursor_x,@cursor_y)
    x2, y2 = w.convert_to_pixels(event.x,event.y)

    if cursor_x>x2
      xpos=x2.to_i
      x2=cursor_x
    else
      xpos=cursor_x.to_i
    end
    while xpos < x2.to_i
      if cursor_y>y2
        ypos=y2.to_i
        y2=cursor_y
      else
        ypos=cursor_y.to_i
      end
      while ypos < y2.to_i
        if $map == nil
          node=$network[ROOTMAPADDR]
          if xpos<node.x && x2>node.x+$config.pixmap_size && ypos<node.y && y2>node.y+$config.pixmap_size+10
            #pos point is in node zone
            node.node_view.select()
          end
        else
          $network[get_map()].get_node().each_value {|node|
            if xpos<node.x && x2>node.x+$config.pixmap_size && ypos<node.y && y2>node.y+$config.pixmap_size+10
              #pos point is in node zone
              node.node_view.select()
            end
          }
        end
        ypos+=$config.pixmap_size+10
      end
      xpos+=$config.pixmap_size
    end
    @drawing_selection=false
  end
  #hide rectangle selection
  @selection.visibility = Goo::CanvasItem::HIDDEN unless @selection == nil

  #redraw links cause nodes have moved
  node_tmp=nil
  get_selected_node().each {|n|
    node_tmp=n
    if n.nb_links > 0
      n.get_links().each {|lnk|
        lnk.remove_link
        lnk.display()
      }
    end
  }
end

@canvas.signal_connect("motion_notify_event") do |w, event|
  if busy?()
     next
  end
      
  if @drawing_selection
    @selection.visibility = Goo::CanvasItem::HIDDEN unless @selection == nil
		
    cursor_x, cursor_y = w.convert_to_pixels(@cursor_x,@cursor_y)
    x2, y2 = w.convert_to_pixels(event.x,event.y)
    @selection=Goo::CanvasRect.new(root, cursor_x, cursor_y, x2 - cursor_x, y2 - cursor_y,
      :stroke_color => "red",
      :line_width => 1.0)
    end
  end
end

Instance Method Details

#background_image_isset? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gui/canvas_map.rb', line 62

def background_image_isset?()
  return @bg_image_enable
end

#bounds ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 24

def bounds()
  return @canvas.bounds
end

#fullscreen? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gui/canvas_map.rb', line 8

def fullscreen?()
  return @fullscreen==true
end

#get_root ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 235

def get_root()
  @canvas.root_item
end

#get_selected_node ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 76

def get_selected_node()
  nodeselected=[]
  if $map != nil
    tmp_node=$network[get_map()]
    if tmp_node
      tmp_node.get_node().each_value {|n|
        if n.node_view and n.node_view.selected?()
          nodeselected.push(n)
        end
      }
    end
  else
    if $network[ROOTMAPADDR] and $network[ROOTMAPADDR].node_view.selected?()
      nodeselected.push($network[ROOTMAPADDR])
    end
  end
  return nodeselected
end

#grab_focus ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 231

def grab_focus()
  @canvas.grab_focus(get_root())
end

#item_at(x, y) ⇒ Object

return the visible item at position (x,y) or nil



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# File 'lib/gui/canvas_map.rb', line 52

def item_at(x, y)
  cvitem = @canvas.get_item_at(x, y, true)
  if cvitem
    if !(cvitem.visibility == Goo::CanvasItem::VISIBLE)
      cvitem = nil
    end
  end
  return cvitem
end

#key_press(canvas, event) ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 135

def key_press(canvas, event)
  estring=Gdk::Keyval.to_name(event.keyval)
  #print "canvas key code: ",event.keyval," = ",estring,"\n"

  x, y = [canvas.x1,canvas.y1]
  case event.keyval
  when Gdk::Keyval::GDK_KP_Add
    node_view_zoom_in()
  when Gdk::Keyval::GDK_plus
    node_view_zoom_in()
  when Gdk::Keyval::GDK_KP_Subtract
    node_view_zoom_out()
  when Gdk::Keyval::GDK_minus
    node_view_zoom_out()
  when Gdk::Keyval::GDK_Delete
    del_selected_node()
  when Gdk::Keyval::GDK_d
    del_selected_node()
  when Gdk::Keyval::GDK_i
    #up
    get_selected_node().each {|n|
      n.node_view.move_up()
    }
  when Gdk::Keyval::GDK_k
    #down
    get_selected_node().each {|n|
      n.node_view.move_down()
    }
  when Gdk::Keyval::GDK_j
    #left
    get_selected_node().each {|n|
      n.node_view.move_left()
    }
  when Gdk::Keyval::GDK_l
    #right
    get_selected_node().each {|n|
      n.node_view.move_right()
    }
  when Gdk::Keyval::GDK_Up
    #canvas root group scroll_to or translate are pain in the ass to handle
    #so we are just here moving each node one by one ...
    if $map.nil?
      $network[ROOTMAPADDR].node_view.move_up()
    else
	$network[$map].get_node().each_value {|node|
        node.node_view.move_up()
	}
    end
  when Gdk::Keyval::GDK_Down    
    if $map.nil?
      $network[ROOTMAPADDR].node_view.move_down()
    else
	$network[$map].get_node().each_value {|node|
        node.node_view.move_down()
	}
    end
  when Gdk::Keyval::GDK_Left
    if $map.nil?
      $network[ROOTMAPADDR].node_view.move_left()
    else
	$network[$map].get_node().each_value {|node|
        node.node_view.move_left()
	}
    end
  when Gdk::Keyval::GDK_Right
    if $map.nil?
      $network[ROOTMAPADDR].node_view.move_right()
    else
	$network[$map].get_node().each_value {|node|
        node.node_view.move_right()
	}
    end
  when Gdk::Keyval::GDK_Page_Up
    set_map($network[$map].map) unless $map == nil
  when Gdk::Keyval::GDK_Page_Down
    if $map == nil
      set_map(ROOTMAPADDR)
    else
      if $network[get_map()].nb_network == 1
        $network[get_map()].network.each_key {|k| set_map(k)}
      else
        #$canvas.get_selected_node().each {|n|
        #if n.class == Network
        #$network[get_map()].network.each_key {|k| set_map(n)}
        #break
        #end
        #}
      end
    end
  when Gdk::Keyval::GDK_f
    toggle_fullscreen()
  when Gdk::Keyval::GDK_F7
    DebugWindow.new
  end
end

#nb_selected ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 127

def nb_selected()
  tmp=get_selected_node()
  if tmp
    return get_selected_node().size()
  end
  return 0
end

#node_view_zoom_in ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 95

def node_view_zoom_in()
  if $map == nil
    $config.pixmap_size+=5
    $network[ROOTMAPADDR].node_view.resize()
  else
    if $network[get_map()].node_size == nil
      $network[get_map()].node_size=$config.pixmap_size+5
    else
      $network[get_map()].node_size+=5
    end
    $network[get_map()].get_node().each_value {|n|
      n.node_view.resize() if n.node_view
    }
  end
end

#node_view_zoom_out ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 111

def node_view_zoom_out()
  if $map == nil
    $config.pixmap_size-=5 unless $config.pixmap_size < 10
    $network[ROOTMAPADDR].node_view.resize()
  else
    if $network[get_map()].node_size == nil
      $network[get_map()].node_size=$config.pixmap_size-5 unless $config.pixmap_size < 10
    else
      $network[get_map()].node_size-=5 unless $network[get_map()].node_size < 10
    end
    $network[get_map()].get_node().each_value {|n|
      n.node_view.resize() if n.node_view
    }     
  end
end

#redraw_all ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 239

def redraw_all()
  @canvas.update()
end

#set_background_image(image_file) ⇒ Object

set the background image



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# File 'lib/gui/canvas_map.rb', line 31

def set_background_image(image_file)
  if !defined?(@bg_img) || (@bg_img == nil)
    @bg_img=Goo::CanvasGroup.new(@canvas.root_item,{:x => 0.0,:y => 0.0})
  end
  if (image_file != nil) && FileTest.exist?(image_file)
    im=Gdk::Pixbuf.new(image_file)
    @bg_img.lower(nil)
    if defined?(@img) && (@img != nil)
      @img.visibility = Goo::CanvasItem::HIDDEN
	@img.parent.remove_child(@img)
    end
    @img=Goo::CanvasImage.new(@bg_img, im, 0, 0,:width => @canvas.x2 - @canvas.x1, :height=> @canvas.y2 - @canvas.y1, :scale_to_fit => true)
    @img.lower(nil)
    @bg_img.visibility = Goo::CanvasItem::VISIBLE
    @bg_image_enable=true
  end
end

#set_rgb(r, g, b) ⇒ Object

set canvas background color



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# File 'lib/gui/canvas_map.rb', line 246

def set_rgb(r, g, b)
  #convert the r g b color in a gdk color object,
  #then transform it to a rgb hex value then an int
  @canvas.background_color_rgb = Integer("0x#{rgb_to_hex_color(Gdk::Color.new(r, g, b))}")    
end

#set_size(w, h) ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 252

def set_size(w, h)
  if @bg_image_enable && (@img != nil)
    @img.width = @canvas.x2 - @canvas.x1
    @img.height = @canvas.y2 - @canvas.y1      
  end
  @canvas.set_bounds(0, 0, get_map_width(), get_map_height()) if $win
end

#toggle_fullscreen ⇒ Object 



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# File 'lib/gui/canvas_map.rb', line 12

def toggle_fullscreen()
  if @fullscreen == false
    @fullscreen=true
    $win.hide_menu()
    $win.fullscreen()
  else
    @fullscreen=false
    $win.show_menu()
    $win.unfullscreen()
  end
end

#unset_background_image ⇒ Object

unset the background image



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# File 'lib/gui/canvas_map.rb', line 69

def unset_background_image()
  if defined?(@bg_img)
    @bg_img.visibility = Goo::CanvasItem::HIDDEN unless @bg_img==nil
    @bg_image_enable = false
  end
end