class CanvasProps (QGraphicsItem):
def __init__(self, parent=None, scene=None):
QGraphicsItem.__init__ (self)
self.parent = parent
self.helper = self.parent.getHelper()
#self.setFlags (QGraphicsItem.ItemIsSelectable)
self.setAcceptsHoverEvents (True)
self.pen_color = QPen (Qt.black, 2)
self.color = QColor (Qt.white).dark (150)
# init Canvas Animation Tweening
self.timeline = QTimeLine (200)
self.timeline.setFrameRange (0, 100)
self.anim = QGraphicsItemAnimation ()
self.anim.setItem (self)
self.anim.setTimeLine (self.timeline)
self.helper.connect (self.timeline, SIGNAL("finished()"), self.moveFurtherUp)
self.anim_active = False
#self._nodename = QGraphicsTextItem ('text '+str(self.node_id), self)
self._nodename = QGraphicsTextItem ('', self)
self._nodename.setPos (QPointF (18, 20))
self._nodename.setDefaultTextColor (QColor (Qt.white).light (255))
self._nodename.setFont (QFont ("Helvetica", 11, QFont.Bold, False))
self._nodename.setTextWidth(120)
self._nodename.setToolTip (self._nodename.toPlainText ())
#self._nodename.setHtml("<h2 align=\"center\">hello</h2><h2 align=\"center\">world 1234345345</h2>123");
self.props_list = []
self.props_textItem_value_list = []
self.FACTOR = 4.0
self._canvas_height = 0
def boundingRect (self): return QRectF (0, 0, 122, 150)
def shape (self):
path = QPainterPath ()
path.addRect (0, 0, 122, 20)
return path
def paint (self, painter, option, unused_widget):
if option.state & QStyle.State_Selected:
fillColor = self.color.dark (100)
else:
fillColor = self.color
if option.state & QStyle.State_MouseOver:
fillColor = fillColor.light (120)
if option.levelOfDetail < 0.2:
if option.levelOfDetail < 0.125:
painter.fillRect (QRectF (0, 0, 110, 70), fillColor)
return
painter.setPen (QPen (Qt.black, 0))
painter.setBrush (fillColor)
painter.drawRect (0, 0, 120, 20)
return
oldPen = painter.pen ()
pen = oldPen
width = 0
if option.state & QStyle.State_Selected:
width += 2
pen.setWidth (width)
if option.state & QStyle.State_Sunken:
level = 120
else:
level = 100
painter.setBrush (QBrush (fillColor.dark (level)))
#painter.drawRoundRect (QRect (0, 0, 80, 34+self.height), 20)
painter.drawRect (QRect (0, 20, 120, 30+9*self._canvas_height))
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
def addProp (self, prop_name, prop_value):
i = len (self.props_list)
self.props_list.append (QGraphicsTextItem (prop_name + ' : ', self))
self.props_textItem_value_list.append (CustomFloatingText (prop_value, self))
# (1) adding the prop's name.
self.props_list[i].setPos (QPointF (7, 35+i*10))
self.props_list[i].setDefaultTextColor (QColor (Qt.white).light (255))
self.props_list[i].setFont (QFont ("Helvetica", 9, QFont.StyleItalic, False))
self.props_list[i].setTextWidth (55)
self.props_list[i].setToolTip (self.props_list[i].toPlainText ())
# (2) adding the prop's value.
self.props_textItem_value_list[i].setTextInteractionFlags (Qt.TextEditable)
self.props_textItem_value_list[i].setPos (QPointF (55, 35+i*10))
self.props_textItem_value_list[i].setDefaultTextColor (QColor (Qt.white).light (255))
self.props_textItem_value_list[i].setFont (QFont ("Helvetica", 9, QFont.StyleNormal, False))
self.props_textItem_value_list[i].setTextWidth (55)
receiver = lambda value: self.parent.listenToChangedPropsValues (prop_name, value)
self.helper.connect (self.props_textItem_value_list[i], SIGNAL ("textChanged(QString)"), receiver)
def getProps (self):
tmp_list = []
l = len (self.props_list)
for i in range (0, l):
tmp_list[i] = [self.props_list[i].toPlainText(), self.props_textItem_value_list[i].toPlainText()]
return tmp_list
def setTitle (self, title): self._nodename.setPlainText (title)
def setCanvasHeightInUnits (self, ch): self._canvas_height = ch
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
def moveDown (self, canvas_height_in_units):
self.anim_active = True
self.upwards_flag = False
self.canvas_height = canvas_height_in_units
self.timeline.stop ()
self.anim.setPosAt (0, QPointF(0, 1+(self.canvas_height+1)*self.FACTOR))
self.anim.setPosAt (1, QPointF(0, 1+(self.canvas_height+2)*self.FACTOR))
self.timeline.start ()
self.update ()
def moveUp (self, canvas_height_in_units):
if self.anim_active == False:
self.anim_active = True
self.upwards_flag = True
self.canvas_height = canvas_height_in_units
self.timeline.stop ()
self.anim.setPosAt (0, QPointF(0, 1+(self.canvas_height+1)*self.FACTOR))
self.anim.setPosAt (1, QPointF(0, 1+(self.canvas_height) *self.FACTOR))
self.timeline.start ()
self.update ()
# this method double-checks whether the canvas needs to be further up as a
# result of receiving other asynchronous "delete link" SIGNALs while moving up.
def moveFurtherUp (self):
self.anim_active = False
if self.upwards_flag==True:
if self.parent.getMaxLen() < self.canvas_height:
self.moveUp (self.canvas_height-1)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
def hoverEnterEvent (self, e):
self._nodename.setToolTip (self._nodename.toPlainText ())
QGraphicsItem.hoverEnterEvent (self, e)
'''
