YACS: gui.GraphViewer.LinkItem Class Reference

Inheritance diagram for gui.GraphViewer.LinkItem:

Collaboration diagram for gui.GraphViewer.LinkItem:

Public Member Functions
def	__init__

def	setFromPoint

def	setToPoint

def	moveBy

def	setArrow

def	popup

def	delete

def	tooltip

Public Attributes
	arrow

Detailed Description

Definition at line 224 of file GraphViewer.py.

Constructor & Destructor Documentation

def gui.GraphViewer.LinkItem.__init__	(	self,
		fromPort,
		toPort,
		canvas
	)

Definition at line 225 of file GraphViewer.py.

 
   def __init__(self,fromPort, toPort,canvas):
     QCanvasLine.__init__(self,canvas)
     self.setPen(QPen(Qt.black))
     self.setBrush(QBrush(Qt.red))
     fromPort.addOutLink(self)
     toPort.addInLink(self)
     self.setPoints(int(fromPort.x()),int(fromPort.y()), int(toPort.x()), int(toPort.y()))
     self.setZ(min(fromPort.z(),toPort.z())-1)
     self.setVisible(True)
     self.arrow = QCanvasPolygon(self.canvas())
     self.arrow.setBrush(QBrush(Qt.black))
     self.setArrow()
     self.arrow.show()

Member Function Documentation

def gui.GraphViewer.LinkItem.delete ( self )

Definition at line 272 of file GraphViewer.py.

Referenced by gui.GraphViewer.LinkItem.popup().

 
   def delete(self):
     print "delete link"

def gui.GraphViewer.LinkItem.popup	(	self,
		canvasView
	)

Definition at line 264 of file GraphViewer.py.

References gui.CItems.LinkItem.delete(), and gui.GraphViewer.LinkItem.delete().

 
   def popup(self,canvasView):
     menu=QPopupMenu()
     caption = QLabel( "<font color=darkblue><u><b>Node Menu</b></u></font>",menu )
     caption.setAlignment( Qt.AlignCenter )
     menu.insertItem( caption )
     menu.insertItem("Delete", self.delete)
     return menu

def gui.GraphViewer.LinkItem.setArrow ( self )

Definition at line 250 of file GraphViewer.py.

Referenced by gui.GraphViewer.LinkItem.setFromPoint(), and gui.GraphViewer.LinkItem.setToPoint().

 
   def setArrow(self):
     x1,y1=self.startPoint().x(),self.startPoint().y()
     x2,y2=self.endPoint().x(),self.endPoint().y()
     d=math.hypot(x2-x1,y2-y1)
     sina=(y2-y1)/d
     cosa=(x2-x1)/d
     x=(x1+x2)/2.
     y=(y1+y2)/2.
     pa=QPointArray(3)
     pa.setPoint(0, QPoint(x+10*cosa,y+10*sina))
     pa.setPoint(1, QPoint(x-5*sina,y+5*cosa))
     pa.setPoint(2, QPoint(x+5*sina,y-5*cosa))
     self.arrow.setPoints(pa)

def gui.GraphViewer.LinkItem.setFromPoint	(	self,
		x,
		y
	)

Definition at line 239 of file GraphViewer.py.

References gui.CItems.LineItem.setArrow(), and gui.GraphViewer.LinkItem.setArrow().

 
   def setFromPoint(self,x,y):
     self.setPoints(x,y,self.endPoint().x(),self.endPoint().y())
     self.setArrow()

def gui.GraphViewer.LinkItem.setToPoint	(	self,
		x,
		y
	)

Definition at line 243 of file GraphViewer.py.

References gui.CItems.LineItem.setArrow(), and gui.GraphViewer.LinkItem.setArrow().

 
   def setToPoint(self,x,y):
     self.setPoints(self.startPoint().x(), self.startPoint().y(),x,y)
     self.setArrow()

def gui.GraphViewer.LinkItem.tooltip	(	self,
		view,
		pos
	)

Definition at line 275 of file GraphViewer.py.

 
   def tooltip(self,view,pos):
     r = QRect(pos.x(), pos.y(), pos.x()+10, pos.y()+10)
     s = QString( "link: %d,%d" % (r.center().x(), r.center().y()) )
     view.tip( r, s )

def gui.GraphViewer.LinkItem.moveBy	(	self,
		dx,
		dy
	)

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation