def __init__(self, center, radius, parent=None):
QGraphicsPolygonItem.__init__(self, makeHexagon(center, radius),
parent)
self._center = center
self._radius = radius
self.setZValue(0)
self.setBoundingRegionGranularity(1.0)
self.setBrush(QBrush(QColor(0, center.y() % 256, center.x() % 256)))
self.setPen(QPen(Qt.NoPen))
self.setAcceptHoverEvents(True)
def __init__(self, obj, parent=None, scene=None,\
brush=QBrush(), pen=QPen(Qt.blue, 0, Qt.SolidLine)) :
"""Adds QGraphics(Polygon)Item to the scene.
Parameters
obj : QPointF or shape type e.g. QPolygonF
obj is QPointF - shape parameters are defined at first mouse click
obj is QPolygonF - it will be drawn as is
"""
logger.debug('In DragPoly')
poly = None
if isinstance(obj, QPolygonF) : poly = obj
elif isinstance(obj, QPointF) :
poly = QPolygonF()
poly.append(obj)
#print('XXX DragPoly 0-point QPolygonF() size = %d' % poly.size())
if poly is None :
logger.warning('DragPoly - wrong init object type:', str(obj))
return
self._dragtype = POLY
self._end_of_add = False
self.poly0 = None
parent_for_base = None
QGraphicsPolygonItem.__init__(self, poly, parent_for_base)
#DragBase.__init__(self, parent, brush, pen) # is called inside QGraphicsPolygonItem
logger.debug('In DragPoly - superclass initialization is done')
if isinstance(obj, QPointF) :
self._drag_mode = ADD
logger.debug('set elf._drag_mode = ADD, ADD:%d _drag_mode:%d' % (ADD, self._drag_mode))
if scene is not None: scene.addItem(self)
if self._drag_mode == ADD :
self.grabMouse() # makes available mouseMoveEvent
logger.debug('In DragPoly mode grabMouse()')
self.setAcceptHoverEvents(True)
#self.setAcceptTouchEvents(True)
#self.setAcceptedMouseButtons(Qt.LeftButton | Qt.RightButton)
self.setPen(self._pen_pos)
self.setBrush(self._brush)
# Flags: ItemIsPanel, ItemClipsChildrenToShape, ItemIsSelectable,
# ItemIsMovable, itemClipsToShape, ItemSendsScenePositionChanges
self.setFlags(self.ItemIsSelectable)
def __init__(self, points, parent=None):
QGraphicsPolygonItem.__init__(self, QPolygonF(points), parent)
self.setPen(Qt.red)
