def addPainterPath(self, tag):
color = getColorStr()
path = sidePath.pathLoader(tag) ## return painter path
pathPt = path.pointAtPercent(0.0) ## so its consistent
## use painter path
pathItem = QGraphicsPathItem(path)
pathItem.setPen(QPen(QColor(color), 3, Qt.DashDotLine))
pathItem.setFlag(QGraphicsPathItem.ItemIsMovable, False)
self.pathGroup.addToGroup(pathItem)
self.addTag(tag, color, pathPt)
def updateConnector(self,
item: QGraphicsPathItem,
p1: QPointF,
p2: QPointF,
select: bool = True):
path = QPainterPath(p1)
path.quadTo(p1 + QPointF(-15, 0), (p1 + p2) * 0.5)
path.quadTo(p2 + QPointF(15, 0), p2)
if item is None:
item = self.nodesScene.addPath(path)
else:
item.setPath(path)
item.setZValue(-1)
if select:
item.setFlag(QGraphicsItem.ItemIsSelectable)
return item
class DrawItem():
'''
Piirtää kuviot
'''
def __init__(self, piirtoalusta):
self.scene = piirtoalusta.scene
self.undoStack = piirtoalusta.undoStack
self.reset()
self.start = QPoint()
self.end = QPoint()
self.pos = QPoint()
self.color = Qt.black
self.font = QFont()
def setRect(self):
'''
Määrittää nelikulmion paikkatietojen perusteella
'''
rect = QRectF()
rect.setTopLeft(self.start)
rect.setBottomRight(self.end)
return rect
def drawRect(self):
'''
Piirtää esineen ja lisää sen sceneen. Palauttaa esineen Load ja
Undo luokkia varten.
'''
path = QPainterPath()
rect = self.setRect()
path.addRect(rect)
path.simplified()
#self.rectitem = QGraphicsPathItem(path)
self.rectitem = PathItem(path, self.undoStack)
self.rectitem.setPen(QPen(self.color, 2))
self.rectitem.setFlag(QGraphicsItem.ItemIsSelectable)
self.rectitem.setFlag(QGraphicsItem.ItemIsMovable)
self.scene.addItem(self.rectitem)
return self.rectitem
'''
rect = self.setRect()
self.rectitem = QGraphicsRectItem(rect)
self.rectitem.setPen(QPen(self.color, 2))
self.scene.addItem(self.rectitem)
'''
def drawEllipse(self):
rect = self.setRect()
#self.ellipseitem = QGraphicsEllipseItem(rect)
self.ellipseitem = EllipseItem(rect, self.undoStack)
self.ellipseitem.setPen(QPen(self.color, 2))
self.ellipseitem.setFlag(QGraphicsItem.ItemIsSelectable)
self.ellipseitem.setFlag(QGraphicsItem.ItemIsMovable)
self.scene.addItem(self.ellipseitem)
return self.ellipseitem
def drawCircle(self):
erotus = abs(self.end.x() - self.start.x())
if self.start.y() > self.end.y():
erotus = -erotus
self.end.setY(self.start.y() + erotus)
self.drawEllipse()
def drawLine(self):
path = QPainterPath()
shape = QRectF(0, 0, 1, 1)
shape.moveCenter(self.pos)
path.addEllipse(shape)
self.paths.connectPath(path)
self.paths.simplified()
#self.lineitem = QGraphicsPathItem(self.paths)
self.lineitem = PathItem(self.paths, self.undoStack)
self.lineitem.setPen(QPen(self.color, 2))
self.lineitem.setFlag(QGraphicsItem.ItemIsSelectable)
self.lineitem.setFlag(QGraphicsItem.ItemIsMovable)
self.scene.addItem(self.lineitem)
return self.lineitem
def drawText(self):
#textitem = QGraphicsTextItem('Text')
textitem = TextItem('Text', self.undoStack)
textitem.setPos(self.end)
textitem.setAcceptHoverEvents(False)
textitem.setTextInteractionFlags(Qt.TextSelectableByKeyboard
| Qt.TextEditable)
textitem.setFont(self.font)
textitem.setDefaultTextColor(self.color)
textitem.setFlag(QGraphicsItem.ItemIsMovable)
textitem.setFlag(QGraphicsItem.ItemIsSelectable)
self.scene.addItem(textitem)
return textitem
def reset(self):
self.ellipseitem = QGraphicsEllipseItem()
self.rectitem = QGraphicsRectItem()
self.lineitem = QGraphicsPathItem()
self.paths = QPainterPath()
def change_selected_color(self, items):
'''
Muttaa listan 'items' esineiden värin arvoon 'self.color'.
'''
for item in items:
if item.type() == 10: # group
self.change_selected_color(
item.childItems()) # kutsuu itseään joukon jäsenille
elif item.type() == 8: # tekstiä
item.setDefaultTextColor(self.color)
else:
item.setPen(QPen(self.color, 2))
