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