Class: MainDlg

Inherits:
Qt::Widget
  • Object
show all
Defined in:
lib/main-dlg-impl.rb

Overview

Class MainDlg ############################################

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent, arg) ⇒ MainDlg

Returns a new instance of MainDlg.



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# File 'lib/main-dlg-impl.rb', line 87

def initialize(parent, arg)
  super(parent)
  @w=Ui::MainDlg.new
  @w.setupUi(self)
  @parent=parent

  @cfg=Qt::Settings.new("MMeltnerSoft", "fg_map")
  @metricUnit = @cfg.value("metricUnit",Qt::Variant.new(true)).toBool
  @zoom = @cfg.value("zoom",Qt::Variant.new(13)).toInt
  @lat = @cfg.value("lat",Qt::Variant.new(LATSTARTUP)).toDouble
  @lon = @cfg.value("lon",Qt::Variant.new(LONSTARTUP)).toDouble
  @w.cBrw.setChecked(@cfg.value("rwChecked",Qt::Variant.new(false)).toBool)
  @w.cBndb.setChecked(@cfg.value("nbdChecked",Qt::Variant.new(false)).toBool)
  @w.cBvor.setChecked(@cfg.value("vorChecked",Qt::Variant.new(true)).toBool)

  @flag=Qt::Pixmap.new(":/icons/flag-blue.png")
  @pin=Qt::Pixmap.new(":/icons/wpttemp-red.png")
  @linepen = Qt::Pen.new
  @linepen.setWidth(5)
  @colors={:index => 0, :selection  => ["Red", "Yellow", "Green"]}
  @graphicsSceneFont = Qt::Font.new("Helvetica", 7)
  @graphicsSceneBrush = Qt::Brush.new(Qt::Color.new(255, 255, 255, 150))
  @ilsBrush = Qt::Brush.new(Qt::Color.new(0, 0, 0, 150))
  @noPen = Qt::Pen.new(Qt::NoPen)

  @wakeupTimer = Qt::Timer.new( self )
  Qt::Object.connect( @wakeupTimer, SIGNAL('timeout()'), self, SLOT('wakeupTimer()') )
  @wakeupTimer.start( FS_READ_INTERVAL )
  @wakeupCounter = 0
  @autosaveTimer = Qt::Timer.new( self )
  Qt::Object.connect( @autosaveTimer, SIGNAL('timeout()'), self, SLOT('autosaveTimer()') )
  @autosaveTimer.start( AUTOSAVE_INTERVAL )

  @offset_x=@offset_y=0
  @fs_ans=[]
  @fs_queries=["/position/latitude-deg", "/position/longitude-deg", "/position/altitude-ft", 
    "/orientation/heading-deg", "/velocities/groundspeed-kt"]
  @speed = 0

  @waypoints=Way.new(nil,'user', Time.now, "Blue")
  @mytracks=[]
  @mytrack_current=-1
  @prev_track_node = nil
  @posnode = Node.new(1, Time.now, @lon, @lat)

  @node = Node.new(1, Time.now, @lon, @lat, 0, @zoom)
  @rot = 0
  @remainingTiles = 0
  @httpThreads = Array.new
  
  @navs = Navaid.new(arg)
  
  @httpMutex = Mutex.new
  @queryMutex = Mutex.new
    
  @scene=Qt::GraphicsScene.new()
  @w.gVmap.setScene(@scene)
  @w.lBzoom.setText(@zoom.to_s)
  vorGraphic=Qt::GraphicsSvgItem.new(":/icons/vor.svg")
  vorGraphic.setElementId("VOR")
  boundingrect = vorGraphic.boundingRect
  @vor_offsetx = boundingrect.right / 2
  @vor_offsety = boundingrect.bottom / 2

  begin
    @fs_socket = TCPSocket.open('localhost', FS_PORT)
    @fs_socket.puts "reset"
  rescue
    #swallow all errors
  end
  
  if FileTest.directory?(MAPSDIR) then
    $MAPSHOME = MAPSDIR
  else
    resp = Qt::MessageBox::question(nil, "No local Map Directory found.", "Create one?", Qt::MessageBox::No, Qt::MessageBox::Yes)
    if resp == Qt::MessageBox::Yes then
      Dir.mkdir(MAPSDIR)
      $MAPSHOME = MAPSDIR
    else
      $MAPSHOME = "./"
    end
  end
  puts "Map Directory located here: \"#{$MAPSHOME}\""
end

Instance Attribute Details

#flag ⇒ Object (readonly)

Returns the value of attribute flag.



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# File 'lib/main-dlg-impl.rb', line 78

def flag
  @flag
end

#menu ⇒ Object (readonly)

Returns the value of attribute menu.



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# File 'lib/main-dlg-impl.rb', line 78

def menu
  @menu
end

#metricUnit ⇒ Object

Returns the value of attribute metricUnit.



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# File 'lib/main-dlg-impl.rb', line 81

def metricUnit
  @metricUnit
end

#mytrack_current ⇒ Object

Returns the value of attribute mytrack_current.



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# File 'lib/main-dlg-impl.rb', line 78

def mytrack_current
  @mytrack_current
end

#mytracks ⇒ Object (readonly)

Returns the value of attribute mytracks.



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# File 'lib/main-dlg-impl.rb', line 78

def mytracks
  @mytracks
end

#node ⇒ Object

Returns the value of attribute node.



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# File 'lib/main-dlg-impl.rb', line 78

def node
  @node
end

#offset_x=(value) ⇒ Object (writeonly)

Sets the attribute offset_x

Parameters:

  • value —

    the value to set the attribute offset_x to.



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# File 'lib/main-dlg-impl.rb', line 80

def offset_x=(value)
  @offset_x = value
end

#offset_y ⇒ Object

Returns the value of attribute offset_y.



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# File 'lib/main-dlg-impl.rb', line 78

def offset_y
  @offset_y
end

#scene ⇒ Object (readonly)

Returns the value of attribute scene.



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# File 'lib/main-dlg-impl.rb', line 78

def scene
  @scene
end

#scene_tiles ⇒ Object

Returns the value of attribute scene_tiles.



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# File 'lib/main-dlg-impl.rb', line 78

def scene_tiles
  @scene_tiles
end

#toffset_x ⇒ Object (readonly)

Returns the value of attribute toffset_x.



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# File 'lib/main-dlg-impl.rb', line 78

def toffset_x
  @toffset_x
end

#w ⇒ Object

Returns the value of attribute w.



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# File 'lib/main-dlg-impl.rb', line 78

def w
  @w
end

#waypoints ⇒ Object

Returns the value of attribute waypoints.



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# File 'lib/main-dlg-impl.rb', line 78

def waypoints
  @waypoints
end

#zoom ⇒ Object (readonly)

Returns the value of attribute zoom.



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# File 'lib/main-dlg-impl.rb', line 78

def zoom
  @zoom
end

Instance Method Details

#addNavToScene(vor, origin_x, origin_y) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 397

def addNavToScene(vor, origin_x, origin_y)
  vorGraphic = Qt::GraphicsSvgItem.new(":/icons/vor.svg")
  vorGraphic.setElementId(vor.type)
  vorGraphic.setTransform(Qt::Transform.new.translate(-@vor_offsetx, -@vor_offsety))
  vorGraphic.setZValue(Z_VALUE_NAV)
  @scene.addItem(vorGraphic)
  vorNode = Node.new(0, nil, vor.lon.to_f, vor.lat.to_f)
  vorGraphic.setPos((vorNode.toxtile - origin_x) * 256, (vorNode.toytile - origin_y) * 256)
  vorGraphic.baseElement = vor
  vor.sceneItem = vorGraphic
  
  # create text on Navaid
  textString = vor.shortName + " " + vor.freq.to_s
  text=Qt::GraphicsSimpleTextItem.new(textString)
  text.setFont(@graphicsSceneFont)
  bounding = text.boundingRect
  background = Qt::GraphicsRectItem.new(bounding)
  background.setBrush(@graphicsSceneBrush)
  background.setPen(@noPen)
  background.setToolTip(textString + "; " + vor.longName)
  background.setPos(@vor_offsetx - bounding.width / 2, 2*@vor_offsety+3)
  text.setParentItem(background)
  background.setParentItem(vorGraphic)
end

#addRunwayToScene(rw, origin_x, origin_y) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 422

def addRunwayToScene(rw, origin_x, origin_y)
  rwNode = Node.new(0, nil, rw.lon.to_f, rw.lat.to_f)
  
  # create text
  textString = rw.airportName + " " + rw.freq.to_s
  text=Qt::GraphicsSimpleTextItem.new(textString)
  text.setFont(@graphicsSceneFont)
  bounding = text.boundingRect
  background = Qt::GraphicsRectItem.new(bounding)
  background.setTransform(Qt::Transform.new.translate(-bounding.width / 2, ILSTEXTOFFSET))
  background.setZValue(Z_VALUE_NAV)
  background.setBrush(@graphicsSceneBrush)
  background.setPen(@noPen)
  background.setToolTip(textString)
  text.setParentItem(background)
  background.setPos((rwNode.toxtile - origin_x) * 256, (rwNode.toytile - origin_y) * 256)

  rwGraphic = Qt::GraphicsEllipseItem.new(0,0,ILSSIZE,ILSSIZE)
  rwGraphic.setStartAngle(ILSCONEANGLE*8)
  rwGraphic.setSpanAngle(-ILSCONEANGLE*16)
  rwGraphic.setTransform(Qt::Transform.new.translate(bounding.width/ 2, -ILSTEXTOFFSET).rotate(rw.direction + 90).translate(-ILSSIZE / 2, -ILSSIZE / 2))
  rwGraphic.setPen(@noPen)
  rwGraphic.setBrush(@ilsBrush)
  rwGraphic.setFlag(Qt::GraphicsItem::ItemStacksBehindParent)

  rwGraphic.setParentItem(background)
  @scene.addItem(background)
  rw.sceneItem = background
end

#addTileToScene(f, origin_x, origin_y) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 385

def addTileToScene(f, origin_x, origin_y)
  pmi=TileGraphicsPixmapItem.new(Qt::Pixmap.new(f))
  @scene_tiles << f
  f =~ /\/(\d*)\/(\d*)\/(\d*)/
  x = $2.to_i
  y = $3.to_i
#   p x - origin_x,y - origin_y
  pmi.setOffset((x - origin_x)*256, (y - origin_y)*256)
  pmi.setZValue(Z_VALUE_TILES)
  @scene.addItem(pmi)
end

#autosaveTimer ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 802

def autosaveTimer()
  savetrack(@mytracks, false)
end

#cBndb_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 849

def cBndb_clicked()
  movemap(@node, true)
end

#cBpointorigin_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 820

def cBpointorigin_clicked()
  @w.fRcurrentwp.enabled = !@w.cBtoorigin.isChecked()
end

#cBrw_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 853

def cBrw_clicked()
  movemap(@node, true)
end

#cBvor_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 845

def cBvor_clicked()
  movemap(@node, true)
end

#get_data(path) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 172

def get_data(path)
  r=@fs_ans.detect do |f|
    f.include?(path)
  end
  r =~ /-?\d+\.\d+/
  return $&.to_f
end

#keyPressEvent(keyevent) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 862

def keyPressEvent(keyevent)
  case keyevent.text
    when "+"
      zoomplus
    when "-"
      zoomminus
    when " "
      @w.pBrecordTrack.click
    else # case
      super
  end # case
end

#loadtrack(title) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 246

def loadtrack(title)  
  fn=Qt::FileDialog::getOpenFileName(nil, title, $MAPSHOME + "/tracks/", "Track-Data (*.gpx *.log);;All (*)")
  if !fn.nil? then
    success = false
    doc = XML::Document.file(fn)
    doc.find('/ns:gpx/ns:trk', "ns:http://www.topografix.com/GPX/1/1").each{|trk|
      @mytrack_current -= 1
      trk.find("ns:trkseg", "ns:http://www.topografix.com/GPX/1/1").each{|seg|
        ns = XML::Namespace.new(seg, 'ns', 'http://www.topografix.com/GPX/1/1')
        seg.namespaces.namespace=ns
        @mytrack_current += 1
        if @mytracks[@mytrack_current].nil? then
          @mytracks[@mytrack_current] = Way.new(1, 'user', Time.now, nextcolor)
          @prev_track_node = nil
        end
        track=@mytracks[@mytrack_current]
        track.nodes.clear
        xpat_time = XML::XPath::Expression.new("ns:time")
        xpat_time_us = XML::XPath::Expression.new("ns:time_us")
        xpat_elevation = XML::XPath::Expression.new("ns:ele")
        seg.find("ns:trkpt", "ns:http://www.topografix.com/GPX/1/1").each{|tpt|
          usec = tpt.find_first(xpat_time_us)
          usec = (usec.nil? ? "0" : usec.content)
          track << Node.new(nil, tpt.find_first(xpat_time).content + usec, \
              tpt["lon"].to_f, tpt["lat"].to_f, tpt.find_first(xpat_elevation).content.to_f)
          success = true
        }
      }
    }
    if success then
      movemap(@node, true)
    else
      Qt::MessageBox::warning(nil, "Warning", "No data found in file.")
    end
    return success
  end
end

#loadwaypoint(title) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 284

def loadwaypoint(title) 
  fn=Qt::FileDialog::getOpenFileName(nil, title, $MAPSHOME + "/waypoints/", "Waypoint-Data (*.gpx *.log);;All (*)")
  if !fn.nil? then
    success = false
    doc = XML::Document.file(fn)
    @waypoints = Way.new(nil,'user', Time.now, "Blue")
    doc.find("/ns:gpx/ns:wpt", "ns:http://www.topografix.com/GPX/1/1").each{ |wpt|
      ns = XML::Namespace.new(wpt, 'ns', 'http://www.topografix.com/GPX/1/1')
      wpt.namespaces.namespace = ns
      xpat_time = XML::XPath::Expression.new("ns:time")
      xpat_elevation = XML::XPath::Expression.new("ns:ele")
      @waypoints << Node.new(nil, wpt.find_first(xpat_time).content, wpt["lon"].to_f, \
            wpt["lat"].to_f, wpt.find_first(xpat_elevation).content.to_f)
      success = true
    }
    if success then
      movemap(@node, true)
    else
      Qt::MessageBox::warning(nil, "Warning", "No data found in file.")
    end
    return success
  end
end

#movemap(node, repaint = false, downloadTiles = true) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 452

def movemap(node, repaint=false, downloadTiles=true)
  origin_x=node.xtile
  origin_y=node.ytile

  if repaint then
    @scene_tiles = []
    @scene_navs = []
    @scene_rws = []
    @scene.clear
    # 8 : 256 = 2**8
    size = 2**(@zoom + 8)
    sceneRect = Qt::RectF.new(0,0,size,size)
    sceneRect.moveCenter(Qt::PointF.new(@node.xtile, @node.ytile))
    @scene.setSceneRect(sceneRect)
  end

  vorsToDisplay = @navs.getVORs(node.getLatLonBox(@w.gVmap.size, @offset_x, @offset_y))
  if vorsToDisplay.length < MAXVORSTODISPLAY then
    vorsToDisplay.each do |vor|
      if !@scene_navs.include?(vor)
        if (@w.cBndb.isChecked and vor.type == "NDB") or
            (@w.cBvor.isChecked and vor.type != "NDB") then
          @scene_navs << vor
          addNavToScene(vor, origin_x, origin_y)
        end
      end
    end
  elsif !@scene_navs.empty? then
    repaint = true
    @scene_tiles = []
    @scene_navs = []
    @scene_rws = []
    @scene.clear
  end

  if @w.cBrw.isChecked then
    runwaysToDisplay = @navs.getRunways(node.getLatLonBox(@w.gVmap.size, @offset_x, @offset_y))
    if runwaysToDisplay.length < MAXILSTODISPLAY then
      runwaysToDisplay.each do |runway|
        if !@scene_rws.include?(runway)
          @scene_rws << runway
          addRunwayToScene(runway, origin_x, origin_y)
        end
      end
    end
  elsif !@scene_rws.empty? then
    repaint = true
    @scene_tiles = []
    @scene_navs = []
    @scene_rws = []
    @scene.clear
  end

  fn = node.getfilenames(@w.gVmap.size, @offset_x, @offset_y)

  fn.each{|f|
    if !@scene_tiles.include?(f)
      if FileTest.exist?(f+".png") then
        addTileToScene(f, origin_x, origin_y)
      elsif downloadTiles and (@timeNoInternet.nil? or (Time.now - @timeNoInternet) > 60) then
#         Thread.abort_on_exception = true
        @httpThreads << Thread.new {
          @remainingTiles += 1
          @httpMutex.synchronize {
            h = Net::HTTP.new('tile.openstreetmap.org')
            h.open_timeout = 10
            @warningText = Qt::GraphicsSimpleTextItem.new("#{@remainingTiles} remaining tiles")
            @warningText.setBrush(Qt::Brush.new(Qt::Color.new("red")))
            @scene.addItem(@warningText)
            fontInfo = Qt::FontInfo.new(@warningText.font)
            @warningText.setPos(@w.gVmap.mapToScene((@w.gVmap.size.width - @warningText.boundingRect.width)/2, 
                  @w.gVmap.size.height - fontInfo.pixelSize - 10))

            f =~ /\/\d+\/\d+\/\d+$/
            f = $&
            begin
              resp, data = h.get(f + ".png", nil)
              if resp.kind_of?(Net::HTTPOK) then
                maindir = Dir.pwd
                Dir.chdir($MAPSHOME)
                f.split("/")[0..-2].each do |dir|
                  if !dir.empty? then
                    begin
                      Dir.mkdir(dir) 
                    rescue Errno::EEXIST
                      # just swallow error
                    end
                    Dir.chdir(dir)
                  end
                end
                Dir.chdir(maindir)
                File.open($MAPSHOME + f + ".png", "w") do |file|
                  file.write(data)
                end
                addTileToScene($MAPSHOME + f, origin_x, origin_y)
              else
                puts "Could not download tile. Internet connection alive?"
                @timeNoInternet=Time.now
              end
            # NoMethodError because of bug, see http://redmine.ruby-lang.org/issues/show/2708
            rescue NoMethodError, Errno::ECONNREFUSED, SocketError, Timeout::Error
              puts "Could not download tile. Internet connection alive?"
              @timeNoInternet=Time.now
            end
            @scene.removeItem(@warningText)
          }
          @remainingTiles -= 1
        }
      else
        puts "Internet timeout still running"
      end
    end
  }
  
  if repaint then
    mainnode_x=node.toxtile
    mainnode_y=node.toytile

    # set waypoint flags
    i=1
    @waypoints.nodes.each {|node|
      if !node.nil? then
        putflag((node.toxtile - mainnode_x) * 256, (node.toytile - mainnode_y) * 256, i, node)
      end
      i+=1
    }
    # set origin pin
    pmi=Qt::GraphicsPixmapItem.new(@pin)
    pmi.setOffset(OFFSET_PIN_X, -OFFSET_PIN_Y)
    pmi.setZValue(Z_VALUE_ORIGIN)
    @scene.addItem(pmi)

    # create hud display
    # needs to be embedded in other graphics element to circumvent a bug if the position of
    # the ProxyWidget is above, below 2**15 - 1, bug in QT
    @hud=Qt::GraphicsRectItem.new(0,0,10,10)
    @hud.setPen(@noPen)
    hud=Qt::GraphicsProxyWidget.new(@hud)
    @hud_widget = HudWidget.new()
    hud.setWidget(@hud_widget)
    @hud.setZValue(Z_VALUE_HUD)
    @scene.addItem(@hud)
    @hud.setPos(@w.gVmap.mapToScene(0,0))
    
    # create rose
    @rose=Qt::GraphicsSvgItem.new(":/icons/rose.svg")
    @rose.setElementId("rose")
    boundingrect = @rose.boundingRect
    rose_offsetx = boundingrect.right / 2
    rose_offsety = boundingrect.bottom / 2
    @rose.setTransform(Qt::Transform.new.scale(SCALE_SVG,SCALE_SVG).translate(-rose_offsetx, -rose_offsety))
    @rose.setZValue(Z_VALUE_ROSE)
    @scene.addItem(@rose)
    @rose.setPos((@posnode.toxtile - mainnode_x) * 256, (@posnode.toytile - mainnode_y) * 256)

    # create bearing-pointer
    @pointer=Qt::GraphicsSvgItem.new(":/icons/rose.svg")
    @pointer.setElementId("zeiger")
    boundingrect = @pointer.boundingRect
    @pointer_offsetx = boundingrect.right / 2
    @pointer.setTransform(Qt::Transform.new.scale(SCALE_SVG,SCALE_SVG).rotate(0).translate(-@pointer_offsetx, 0))
    @pointer.setZValue(Z_VALUE_POINTER)
    @scene.addItem(@pointer)
    @pointer.setPos((@posnode.toxtile - mainnode_x) * 256, (@posnode.toytile - mainnode_y) * 256)

    # create pointer to origin
    @pointertoorigin=Qt::GraphicsSvgItem.new(":/icons/rose.svg")
    @pointertoorigin.setElementId("zeigertoorigin")
    boundingrect = @pointertoorigin.boundingRect
    @pointertoorigin_offsetx = boundingrect.right / 2
    @pointertoorigin.setTransform(Qt::Transform.new.scale(SCALE_SVG,SCALE_SVG).rotate(0).translate(-@pointertoorigin_offsetx, 0))
    @pointertoorigin.setZValue(Z_VALUE_POINTERTOORIGIN)
    @scene.addItem(@pointertoorigin)
    @pointertoorigin.setPos((@posnode.toxtile - mainnode_x) * 256, (@posnode.toytile - mainnode_y) * 256)
    
    # paint tracks
    @mytracks.each {|track|
      prev_node = nil
      if !track.nil? then
        @linepen.setColor(Qt::Color.new(track.color))
        tck=nil
        prev_node=false
        if !track.nodes.empty? then
          track.nodes.each{|n|
            if !prev_node then
              tck=Qt::PainterPath.new(Qt::PointF.new((n.toxtile - mainnode_x) * 256, (n.toytile - mainnode_y) * 256))
            else
              tck.lineTo((n.toxtile - mainnode_x) * 256, (n.toytile - mainnode_y) * 256)
            end
            prev_node = true
          }
          track.path=TrackGraphicsPathItem.new(track)
          track.path.setPath(tck)
          track.path.setZValue(Z_VALUE_TRACK)
          track.path.setPen(@linepen)
          @scene.addItem(track.path)
        end
      end
    }
    if @w.pBrecordTrack.isChecked then
      if !@mytracks[@mytrack_current].path.nil?
        @tckpath=@mytracks[@mytrack_current].path.path
      end
    end
  end

  @w.gVmap.centerOn(@offset_x*256,@offset_y*256)
  if !@hud.nil? then
    @hud.setPos(@w.gVmap.mapToScene(0,0))
  end
end

#nextcolor ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 194

def nextcolor
  col=@colors[:selection][@colors[:index]]
  if col.nil? then
    col=@colors[:selection][0]
    @colors[:index] = 0
  else
    @colors[:index] += 1
  end
  return col
end

#pBexit_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 832

def pBexit_clicked()
  puts "Syncing data and exiting."
  @cfg.setValue("metricUnit", Qt::Variant.new(@metricUnit))
  @cfg.setValue("zoom", Qt::Variant.new(@zoom))
  @cfg.setValue("lat", Qt::Variant.new(@node.lat))
  @cfg.setValue("lon", Qt::Variant.new(@node.lon))
  @cfg.setValue("rwChecked", Qt::Variant.new(@w.cBrw.isChecked))
  @cfg.setValue("nbdChecked", Qt::Variant.new(@w.cBndb.isChecked))
  @cfg.setValue("vorChecked", Qt::Variant.new(@w.cBvor.isChecked))
  @cfg.sync
  @parent.close
end

#pBminus_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 824

def pBminus_clicked()
  zoomminus
end

#pBplus_clicked ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 828

def pBplus_clicked()
  zoomplus
end

#pBrecordTrack_toggled(state) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 806

def pBrecordTrack_toggled(state)
  if state
    @mytrack_current += 1
    @w.pBrecordTrack.text = "Recording Track #{@mytrack_current + 1}"
    if @mytracks[@mytrack_current].nil? then
      @mytracks[@mytrack_current] = Way.new(1, 'user', Time.now, nextcolor)
      @linepen.setColor(Qt::Color.new(@mytracks[@mytrack_current].color))
      @prev_track_node = false
    end
  else
    @w.pBrecordTrack.text = "Record Track #{@mytrack_current + 2}"
  end
end

#putflag(x, y, i, node) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 180

def putflag(x,y,i,node)
  flag=FlagGraphicsPixmapItem.new(@flag)
  flag.setOffset(x - OFFSET_FLAG_X, y - OFFSET_FLAG_Y)
  t=Qt::GraphicsTextItem.new(i.to_s, flag)
  t.setPos(x + OFFSET_FLAG_COUNTER_X, y + OFFSET_FLAG_COUNTER_Y)
  flag.setZValue(Z_VALUE_WAYPOINT)
  tooltip=("Lon: %.3f°"%node.lon)+("\nLat: %.3f°"%node.lat)
  if node.elevation>0 then
    tooltip += ("\nElevation: %.1fm" % node.elevation)
  end
  flag.setToolTip(tooltip)
  @scene.addItem(flag)
end

#resize(*k) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 857

def resize(*k)
  super
  @hud.setPos(@w.gVmap.mapToScene(0,0)) if !@hud.nil?
end

#savetrack(items, warn = true) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 205

def savetrack(items, warn=true)
  if items[0].nil? or items[0].nodes.length == 0 then
    Qt::MessageBox::warning(nil, "Warning", "No data recorded yet.") if warn
  else
    begin
      Dir.mkdir($MAPSHOME + "/tracks")
    rescue Errno::EEXIST
      # just swallow error
    end
  
    ap "generating xml-doc"
    doc = XML::Document.new()
    doc.root = XML::Node.new('gpx')
    doc.root["xmlns"] = "http://www.topografix.com/GPX/1/1"
    doc.root["creator"] = "ruby-tracker"
    doc.root["version"] = "1.1"
    doc.root["xmlns:xsi"] = "http://www.w3.org/2001/XMLSchema-instance" 
    doc.root["xsi:schemaLocation"] = "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"

    tracknode = XML::Node.new("trk")
    doc.root << tracknode
    items.each{|track|
      segnode = XML::Node.new("trkseg")
      tracknode << segnode
      track.nodes.each{|n|
        trackpoint = XML::Node.new("trkpt")
        trackpoint["lat"] =   n.lat.to_s.gsub(",",".")
        trackpoint["lon"] =   n.lon.to_s.gsub(",",".")
        trackpoint << XML::Node.new("ele", n.elevation.to_s.gsub(",","."))
        trackpoint << XML::Node.new("time", n.toGPStime)
        trackpoint << XML::Node.new("time_us", n.timestamp.usec.to_s)
        segnode << trackpoint
      }
    }
    File.open($MAPSHOME + "/tracks/" + items.first.nodes.first.toGPStime + ".gpx", "w+"){|f|
      f.puts doc.inspect
    }
    ap "xml-file written"
  end
end

#saveWaypoints(waypoints) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 308

def saveWaypoints(waypoints)
  if waypoints.length == 0 then
    Qt::MessageBox::warning(nil, "Warning", "No waypoints set yet.") if warn
  else
    begin
      Dir.mkdir($MAPSHOME + "/waypoints")
    rescue Errno::EEXIST
      # just swallow error
    end
  
    doc = XML::Document.new()
    doc.root = XML::Node.new('gpx')
    doc.root["xmlns"] = "http://www.topografix.com/GPX/1/1"
    doc.root["creator"] = "ruby-tracker"
    doc.root["version"] = "1.1"
    doc.root["xmlns:xsi"] = "http://www.w3.org/2001/XMLSchema-instance" 
    doc.root["xsi:schemaLocation"] = "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"

    waypoints[0].nodes.each{|n|
      if !n.nil? then
        wpnode = XML::Node.new("wpt")
        doc.root << wpnode
        wpnode["lat"] =   n.lat.to_s.gsub(",",".")
        wpnode["lon"] =   n.lon.to_s.gsub(",",".")
        wpnode << XML::Node.new("ele", n.elevation.to_s.gsub(",","."))
        wpnode << XML::Node.new("time", n.toGPStime)
      end
    }
    fn=Qt::FileDialog::getSaveFileName(nil, "Save Waypoint File", $MAPSHOME + "/waypoints/", "Waypoint-Data (*.gpx *.log);;All (*)","*.gpx")

    if !fn.nil? then
      if fn !~ /\.gpx$/ then
        fn += ".gpx"
      end
      File.open(fn, "w+"){|f|
        f.puts doc.inspect
      }
    end
  end
end

#wakeupTimer ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 664

def wakeupTimer()
#   p "wakeup in"
  # have to do centering every time as QT will not scroll to scene coordinates which have no elements placed there yet
  begin
    @w.gVmap.centerOn(@offset_x*256,@offset_y*256)
  rescue ArgumentError
    # swallow
  end

  @wakeupCounter += 1
  return if @wakeupCounter <= TICKSTOSKIP
  @wakeupCounter = 0

  if @fs_socket.nil? then
    begin
      @fs_socket = TCPSocket.open('localhost', FS_PORT)
      movemap(@node, true)
    rescue
      #swallow all errors
      puts "Non-critical socket error: #{$!}"
    end
  else
    begin
      @queryMutex.synchronize {
        @fs_queries.each do |q|
          @fs_socket.print("get " + q + "\r\n")
          s=""
          while select([@fs_socket], nil, nil, 0.3) do
            s += @fs_socket.read(1)
            # check for end of line characterized by this string: "\r\n/>"
            break if s[-4..-1] == "\r\n/>" and s.include?(q)
          end
          if s.include?(q) then
            @fs_ans << s.split("\n")
            @fs_ans.flatten!
          end
        end
      }
    rescue
      puts "Warning: Can not communicate with Flightsimulator. Is Telnet interface configured?"
      @scene.removeItem(@rose)
      @scene.removeItem(@pointer)
      @fs_socket = nil
      @hud = nil
    else # rescue
      #ap @fs_ans
      if @fs_ans.length>0 then # check if any answer has been received yet.
        if !@hud.nil? then
          @posnode.lon = get_data("/position/longitude-deg")
          @posnode.lat = get_data("/position/latitude-deg")
          @rot = get_data("/orientation/heading-deg")
          @alt = get_data("/position/altitude-ft")
          speed = get_data("/velocities/groundspeed-kt") * 1.852
          # protect against bug in Flightsim, speed ofter zero if returned
          @speed = speed if speed > 0
          @hud_widget.w.lBlat.setText("%2.3f°" % @posnode.lat)
          @hud_widget.w.lBlon.setText("%2.3f°" % @posnode.lon)
          conversion = @metricUnit ? 1 : 0.54
          @hud_widget.w.lBspeed.setText("%3.1f" % (@speed*conversion) +  (@metricUnit ? " km/h" : "kt"))
          @hud_widget.w.lBheading.setText("%3.1f°" % (@rot))
          conversion = @metricUnit ? 3.281 : 1
          @hud_widget.w.lBalt.setText("%3.1f" % (@alt/conversion) +  (@metricUnit ? "m" : "ft"))
          mainnode_x=@node.toxtile
          mainnode_y=@node.toytile
          @rose.setPos((@posnode.toxtile - mainnode_x) * 256, (@posnode.toytile - mainnode_y) * 256)
          
          @pointer.setTransform(Qt::Transform.new.scale(SCALE_SVG,SCALE_SVG).rotate(@rot+180.0) \
              .translate(-@pointer_offsetx, -@pointer_offsetx))
          @pointer.setPos((@posnode.toxtile - mainnode_x) * 256 ,(@posnode.toytile - mainnode_y) * 256)
          
          to_x = mainnode_x
          to_y = mainnode_y
          to_lon = @node.lon
          to_lat = @node.lat
          if !@w.cBtoorigin.isChecked and !@waypoints.currentwp.nil? then
            if !@waypoints.nodes[@waypoints.currentwp-1].nil? then
              to_x = @waypoints.nodes[@waypoints.currentwp-1].toxtile
              to_y = @waypoints.nodes[@waypoints.currentwp-1].toytile
              to_lon = @waypoints.nodes[@waypoints.currentwp-1].lon
              to_lat = @waypoints.nodes[@waypoints.currentwp-1].lat
            end
          end
          @pointertoorigin.setTransform(Qt::Transform.new.scale(SCALE_SVG,SCALE_SVG).rotateRadians(Math::PI / 2 + \
              Math.atan2((@posnode.toytile - to_y), (@posnode.toxtile - to_x))) \
              .translate(-@pointertoorigin_offsetx, -@pointertoorigin_offsetx))
          @pointertoorigin.setPos((@posnode.toxtile - mainnode_x) * 256 ,(@posnode.toytile - mainnode_y) * 256)
          
          @hud_widget.w.lBdistance.text = @posnode.distanceto_str(to_lon, to_lat)
          
          if @w.cBautocenter.isChecked then
            @offset_x = @posnode.toxtile - mainnode_x
            @offset_y = @posnode.toytile - mainnode_y
            movemap(@node)
          end
          if @mytrack_current >= 0 and @w.pBrecordTrack.isChecked then
            if @mytracks[@mytrack_current].nil? then
              @mytracks[@mytrack_current] = Way.new(1, 'user', Time.now, nextcolor)
              @linepen.setColor(Qt::Color.new(@mytracks[@mytrack_current].color))
              @prev_track_node = false
            end
            @mytracks[@mytrack_current] << Node.new(nil, Time.now, @posnode.lon, @posnode.lat, @alt)
            n = @mytracks[@mytrack_current].nodes.last
            n.speed = @speed
            if !@prev_track_node then
              @tckpath = Qt::PainterPath.new(Qt::PointF.new((n.toxtile - mainnode_x) * 256, (n.toytile - mainnode_y) * 256))
              @mytracks[@mytrack_current].path=TrackGraphicsPathItem.new(@mytracks[@mytrack_current])
              @mytracks[@mytrack_current].path.setPath(@tckpath)
              @mytracks[@mytrack_current].path.setZValue(Z_VALUE_TRACK)
              @mytracks[@mytrack_current].path.setPen(@linepen)
              @scene.addItem(@mytracks[@mytrack_current].path)
              @prev_track_node = true
            else
              @tckpath.lineTo((n.toxtile - mainnode_x) * 256, (n.toytile - mainnode_y) * 256)
              @mytracks[@mytrack_current].path.setPath(@tckpath)
            end
          end
          
        end # if [email protected]?
      end # if @fs_ans.length>0
    end # rescue
    @fs_ans=[]
  end # socket nil
end

#writeFlightsim(element) ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 789

def writeFlightsim(element)
  @queryMutex.synchronize {
    @fs_socket.print(element + "\r\n")
    s = ""
    while select([@fs_socket], nil, nil, 0.3) do
      s += @fs_socket.read(1)
      # check for end of line characterized by this string: "\r\n/>"
      break  if s[-4..-1] == "\r\n/>"
    end
  }
end

#zoomminus ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 367

def zoomminus 
  @httpThreads.each do |th|
    th.kill
  end
  @remainingTiles = 0
  @httpThreads = Array.new
  @scene.removeItem(@warningText)

  @zoom -= 1
  @zoom=17 if @zoom>17
  @zoom=3 if @zoom<3
  @w.lBzoom.setText(@zoom.to_s)
  @node.zoom(@zoom)
  @offset_x /= 2
  @offset_y /= 2
  movemap(@node, true)
end

#zoomplus ⇒ Object 



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# File 'lib/main-dlg-impl.rb', line 349

def zoomplus
  @httpThreads.each do |th|
    th.kill
  end
  @httpThreads = Array.new
  @remainingTiles = 0
  @scene.removeItem(@warningText)

  @zoom += 1
  @zoom=17 if @zoom>17
  @zoom=3 if @zoom<3
  @w.lBzoom.setText(@zoom.to_s)
  @node.zoom(@zoom)
  @offset_x *= 2
  @offset_y *= 2
  movemap(@node, true)
end