def P07(self, obj, event): # LEFTMOUSEPRESSED + MOUSERELEASED
self.redrawSelectedItems()
self.redrawNodes()
item = self.itemAt(event.scenePos())
if self.scene.currentItem != None:
self.scene.currentItem = None
self.deselect_all()
try:
item.setSelected(True)
self.scene.currentItem = item
except:
pass
if self.scene.selectedItems():
self.state = ITEMSELECTED
else:
self.state = IDLE
item = self.findOutPortAt(event.scenePos())
if isinstance(item, OutPort):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
self.conn = Connection(None, self.scene)
self.conn.port1 = item
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
def addConn(self):
self.scene.DgmToUndo()
c = self.scene.item
posMouse = self.gridPos(self.scene.evpos)
self.conn = Connection(None, self.scene)
self.conn.port1 = c.port1
self.conn.pos1 = c.pos1
try:
npos, pos = self.find_exact_pos(c, posMouse)
except:
return
N = len(c.connPoints)
if npos == 0:
pos = posMouse
npt = 0
elif npos == N:
pos = posMouse
npt = N
else:
npt = npos
for n in range(0, npt):
self.conn.connPoints.append(c.connPoints[n])
self.conn.connPoints.append(pos)
self.state = DRAWFROMOUTPORT
def P11(self, obj, event):
item = self.itemAt(event.scenePos())
if isinstance(item, Node):
self.scene.DmgToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
def newConn(self):
self.scene.DgmToUndo()
if not self.conn:
self.insertConnection(self.event)
item = self.lastNode
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
else:
self.scene.clearLastUndo()
def P08(self, obj, event):
item = self.itemAt(event.scenePos())
if isinstance(item, InPort):
if len(item.connections) == 0:
self.scene.DgmToUndo()
self.conn.port2 = item
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
if isinstance(self.conn.port1, OutPort):
pos = QtCore.QPointF(
(self.conn.pos2.x() + self.conn.pos1.x()) / 2,
self.conn.pos1.y())
self.newNode(self.conn, pos)
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if isinstance(item, Node):
if item.port_in.connections == []:
self.scene.DgmToUndo()
self.conn.port2 = item.port_in
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn) # Problema qui!
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if item == None:
pt = self.genInterPoint(event.scenePos())
b = Node(None, self.scene)
b.setPos(pt)
self.conn.port2 = b.port_in
self.conn.pos2 = b.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
self.conn.update_path()
self.conn = Connection(None, self.scene)
self.conn.port1 = b.port_out
self.conn.pos1 = b.scenePos()
self.conn.pos2 = b.scenePos()
def connectionInsertNode(self, conn, pos):
newnode = self.createNode(pos)
p = conn.port[1]
conn.attach(1, newnode)
conn.update_path()
newconn = Connection(None, self.scene)
newconn.attach(0, newnode)
newconn.attach(1, p)
newconn.update_path()
return newconn
def pasteAct(self):
if self.scene.selection != []:
block_tr = dict()
port_tr = dict()
conn_list = []
dx, dy = 100, 100
for item in self.scene.selection:
newitem = None
if isinstance(item, Block):
b = item.clone(QtCore.QPointF(dx, dy))
b.setSelected(True)
block_tr[item.label.text()] = b
elif isConnection(item):
conn_list.append(item)
elif isPort(item, 'pin') or isPort(item, 'node'):
newitem = Port(None, self.scene)
port_tr[item] = newitem
elif isComment(item):
newitem = Comment('')
self.scene.addItem(newitem)
# else:
# print ('skipping paste of ', item.toData())
item.setSelected(False)
if newitem:
data = item.toData()
data['x'] += dx
data['y'] += dy
newitem.fromData(data)
newitem.setSelected(True)
for c in conn_list:
data = c.toData()
conn = Connection(None, scene=self.scene)
conn.pos[0] = QtCore.QPointF(data['x0'] + dx, data['y0'] + dy)
conn.pos[1] = QtCore.QPointF(data['x1'] + dx, data['y1'] + dy)
for ix, p in [(0, 'p0'), (1, 'p1')]:
if p in data: # translate blocknames
(blkname, pinname) = data[p] # update to new blockname
if blkname in block_tr:
b = block_tr[blkname]
conn.attach(ix, b.ports(retDict=True)[pinname])
elif c.port[ix]:
port = c.port[ix]
if port in port_tr:
conn.port[ix] = port_tr[port]
conn.update_path()
def recreateBlock(self, item, scene=None):
if scene is None:
scene = self.scene
pp = dict()
for port in item.ports():
portname = port.label.text()
pp[portname] = []
for c in port.connections:
if c.port[0] == port and c.port[1] != port:
pp[portname].append((0, c.port[1]))
elif c.port[0] != port and c.port[1] == port:
pp[portname].append((1, c.port[0]))
data = item.toData() # store blk
item.remove() # also removes connections
# recreate with new parameters
par = item.parameters
prop = item.properties
b = getBlock(data['libname'],
data['blockname'],
scene=scene,
param=par,
properties=prop,
name=data['blockname'])
b.fromData(data)
b.setLabel()
# restore connections to block
for port in b.ports():
portname = port.label.text()
if portname in pp:
for (ix, p) in pp[portname]:
if ix == 0:
c = Connection(None, scene, port)
c.attach(1, p)
else:
c = Connection(None, scene, p)
c.attach(1, port)
c.update_path()
def loadConn(self, item):
c = Connection(None, self)
pt1 = QtCore.QPointF(float(item.findtext('pos1X')),
float(item.findtext('pos1Y')))
pt2 = QtCore.QPointF(float(item.findtext('pos2X')),
float(item.findtext('pos2Y')))
c.pos1 = pt1
c.pos2 = pt2
c.update_ports_from_pos()
def P07(self, obj, event):
item = self.itemAt(event.scenePos())
if self.scene.currentItem != None:
self.deselect_all()
try:
item.setSelected(True)
self.scene.currentItem = item
except:
pass
if self.scene.selectedItems():
self.state = ITEMSELECTED
#self.scene.mainw.status.showMessage('ITEMSELECTED')
else:
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if isinstance(item, OutPort):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
if len(item.connections) == 0:
self.conn = Connection(None, self.scene)
self.conn.port1 = item
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
if isinstance(item, Node):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
self.scene.updateDgm()
def newNode(self, item, pos):
port2 = item.port2
pos2 = item.pos2
c = Connection(None, self.scene)
b = Node(None, self.scene)
b.setPos(pos)
self.lastNode = b
item.port2.connections.remove(item)
item.port2.connections.append(c)
item.port2 = b.port_in
item.port2.connections.append(item)
item.pos2 = b.pos()
c.port1 = b.port_out
c.port2 = port2
c.port1.connections.append(c)
c.pos1 = b.pos()
c.pos2 = pos2
item.update_path()
c.update_path()
self.scene.isInsConn = False
self.scene.isConnecting = True
def bindNode(self):
self.scene.DgmToUndo()
item = self.scene.item
if len(item.port_out.connections) == 1:
c1 = item.port_in.connections[0]
c2 = item.port_out.connections[0]
c = Connection(None, self.scene)
c.pos1 = c1.pos1
c.pos2 = c2.pos2
item.remove()
c.update_ports_from_pos()
if isinstance(c.port1, OutPort) and isinstance(c.port2, InPort):
pos = QtCore.QPointF((c.pos2.x() + c.pos1.x()) / 2, c.pos1.y())
self.newNode(c, pos)
else:
self.scene.clearLastUndo()
def connectionNext(self, pos):
newnode = self.createNode(pos)
self.conn.update_path(newnode) # last point
self.conn = Connection(None, self.scene, newnode) #new Connection
def connectionStart(self, p):
self.conn = Connection(None, self.scene, p)
class Editor(QtCore.QObject):
""" Editor to handles events"""
def __init__(self, parent):
super(Editor, self).__init__(parent)
self.conn = None
self.move = None
self.scene = None
self.status = parent.status
self.movBlk = False
self.event = None
self.connFromNode = False
self.menuIOBlk = QtWidgets.QMenu()
#parBlkAction = self.menuIOBlk.addAction('Block I/Os')
paramsBlkAction = self.menuIOBlk.addAction('Parameters')
propertiesBlkAction = self.menuIOBlk.addAction('Properties')
flpBlkAction = self.menuIOBlk.addAction('Flip')
nameBlkAction = self.menuIOBlk.addAction('Change Name')
cloneBlkAction = self.menuIOBlk.addAction('Clone Block')
deleteBlkAction = self.menuIOBlk.addAction('Delete Block')
# self.netlistMenu = QtWidgets.QMenu('Netlist')
# self.menuIOBlk.addMenu(self.netlistMenu)
# netListAction = self.menuIOBlk.addAction('Netlist')
#parBlkAction.triggered.connect(self.parBlock)
flpBlkAction.triggered.connect(self.flipBlock)
nameBlkAction.triggered.connect(self.nameBlock)
paramsBlkAction.triggered.connect(self.blockParams)
propertiesBlkAction.triggered.connect(self.blockProperties)
cloneBlkAction.triggered.connect(self.cloneBlock)
deleteBlkAction.triggered.connect(self.deleteBlock)
# netListAction.triggered.connect(self.netList)
self.subMenuPort = QtWidgets.QMenu()
portEditAction = self.subMenuPort.addAction('Edit')
portFlipAction = self.subMenuPort.addAction('Flip')
portDelAction = self.subMenuPort.addAction('Delete')
portTypeAction = self.subMenuPort.addAction('Add/Edit signal type')
portEditAction.triggered.connect(self.portEdit)
portFlipAction.triggered.connect(self.flipBlock)
portDelAction.triggered.connect(self.portDelete)
portTypeAction.triggered.connect(self.portAddType)
self.subMenuConn = QtWidgets.QMenu()
connDelAction = self.subMenuConn.addAction('Delete connection')
connInsAction = self.subMenuConn.addAction('Insert node')
connLabelAction = self.subMenuConn.addAction('Add/Edit label')
connDelAction.triggered.connect(self.deleteConn)
connInsAction.triggered.connect(self.insConn)
connLabelAction.triggered.connect(self.addConnLabel)
self.subMenuText = QtWidgets.QMenu()
textCloneAction = self.subMenuText.addAction('Clone')
textCloneAction.triggered.connect(self.cloneText)
self.subMenuNothing = QtWidgets.QMenu(
) # right mouse menu when nothing on pos
nodeInsAction = self.subMenuNothing.addAction('Insert node')
nodeInsAction.triggered.connect(self.createNode)
def addConnLabel(self):
conn = self.scene.item
if conn.label:
dialog = textLineDialog('Label: ', content=conn.label.text())
else:
dialog = textLineDialog('Label: ')
ret = dialog.getLabel()
if ret:
if conn.label:
conn.label.setText(ret)
else:
conn.label = textItem(ret, anchor=3, parent=conn)
conn.label.setPos(conn.pos2.x(), conn.pos2.y())
def cloneBlock(self):
item = self.scene.item
b = item.clone(QtCore.QPointF(100, 100))
# b.name = self.scene.setUniqueName(b)
b.setup()
def cloneText(self):
item = self.scene.item
c = Comment('')
c.fromData(item.toData())
c.setPos(c.pos() + QtCore.QPointF(100, 100))
self.scene.addItem(c)
def deleteBlock(self):
item = self.scene.item
item.remove()
def portDelete(self):
self.scene.item.remove()
def deleteConn(self):
self.scene.item.remove()
def flipBlock(self):
item = self.scene.item
item.flip = not item.flip
item.setFlip()
def insConn(self):
if not self.conn:
self.insertConnection(self.event)
def install(self, scene):
scene.installEventFilter(self)
self.scene = scene
def itemAt(self, pos, exclude=[], single=True):
items = []
radius = 4 * DB / self.parent().view.currentscale
allitems = self.scene.items(
QtCore.QRectF(pos - QtCore.QPointF(radius, radius),
QtCore.QSizeF(2 * radius, 2 * radius)))
for item in allitems:
if isinstance(item, QtWidgets.QGraphicsItem):
items.append(item)
for testfunc in exclude:
if testfunc(item):
items.pop() # remove
break
if single and items:
return items[0]
return items
def sortedItemsAt(self, pos):
blocks, ports, nodes, connections, labels = [], [], [], [], []
radius = 4 * DB / self.parent().view.currentscale
allitems = self.scene.items(
QtCore.QRectF(pos - QtCore.QPointF(radius, radius),
QtCore.QSizeF(2 * radius, 2 * radius)))
for item in allitems:
for cat, test in [(blocks, isBlock), (nodes, isNode),
(connections, isConnection),
(labels, isTextItem)]:
if test(item):
cat.append(item)
elif isPort(item): # all ports except nodes
ports.append(item)
return blocks, ports, nodes, connections, labels
def ConnectionAt(self, pos):
return self.itemAt(pos, exclude=[isNode, isPort, isBlock], single=True)
def nameBlock(self):
item = self.scene.item
dialog = BlockName_Dialog(self.scene.mainw)
dialog.name.setText(item.name)
res = dialog.exec_()
if res == 1:
# item.name = str(dialog.name.text())
item.setLabel(dialog.name.text())
# item.label.setNormal()
# w = item.label.boundingRect().width()
# item.label.setPos(-w/2, item.h/2+5)
self.scene.isInsConn = False
self.scene.isConnecting = True
def netList(self, type):
try:
item = self.scene.item
fname = 'libraries.library_{}.{}'.format(item.libname,
item.blockname)
exec('import ' + fname)
func = eval(fname + '.netlist' + type)
func(item)
except:
if type == 'myhdl':
item = self.scene.item
if item.hasDiagram():
views = libraries.getViews(item.blockname, item.libname)
fname = 'libraries/library_{}/{}_myhdl.py'.format(
item.libname, item.blockname)
overwrite = True
if 'myhdl' in views:
dialog = overWriteNetlist()
ret = dialog.exec_()
if ret == 0:
fname = views['myhdl']
else:
overwrite = False
if overwrite:
import supsisim.netlist
content = supsisim.netlist.netlistMyHdl(
item.blockname, item.libname, item.properties)
if content == False:
error('More than 1 label on signal')
return
f = open(fname, 'w+')
f.write(content)
f.close()
if not 'myhdl' in views:
self.addView(item.blockname, item.libname, 'myhdl')
self.parent().library.openView('myhdl', item)
else:
error("file doesn't have a diagram")
else:
error('netlist not found')
def parBlock(self):
self.scene.mainw.parBlock()
def portAddType(self, event):
item = self.scene.item
if not isPort(item):
error('use on nodes/pins')
return
if item.signalType:
dialog = textLineDialog('Signal type: ', 'Signal type',
item.signalType.text())
else:
dialog = textLineDialog('Signal type: ', 'Signal type')
ret = dialog.getLabel()
if ret:
item.signalType = textItem(ret, anchor=8, parent=item)
item.signalType.setBrush(colors['signalType'])
font = item.signalType.font()
font.setItalic(True)
item.signalType.setFont(font)
# item.signalType.setPos(item.pos2.x(),item.pos2.y())
def portEdit(self):
item = self.scene.item
if not isPort(item):
error('not a pin')
dd = OrderedDict()
dd['Pin_label'] = item.label.text() if item.label else ''
options = 'ipin opin iopin node'.split()
dd['Pin_type'] = (item.porttype, options)
properties = item.properties
title = 'Edit Node' if isNode(item) else 'Edit Pin'
dialog = propertiesDialog(self.scene.mainw,
dd,
properties,
title=title)
dd = dialog.getRet()
if dd:
item.setType(dd.pop('Pin_type')[0])
item.setLabel(dd.pop('Pin_label'))
if dd:
item.properties = dd
item.setup()
def blockProperties(self):
item = self.scene.item
dialog = propertiesDialog(self.scene.mainw,
item.properties,
addButton=False)
dd = dialog.getRet()
if dd:
item.properties = dd
self.recreateBlock(item)
def recreateBlock(self, item, scene=None):
if scene is None:
scene = self.scene
pp = dict()
for port in item.ports():
portname = port.label.text()
pp[portname] = []
for c in port.connections:
if c.port[0] == port and c.port[1] != port:
pp[portname].append((0, c.port[1]))
elif c.port[0] != port and c.port[1] == port:
pp[portname].append((1, c.port[0]))
data = item.toData() # store blk
item.remove() # also removes connections
# recreate with new parameters
par = item.parameters
prop = item.properties
b = getBlock(data['libname'],
data['blockname'],
scene=scene,
param=par,
properties=prop,
name=data['blockname'])
b.fromData(data)
b.setLabel()
# restore connections to block
for port in b.ports():
portname = port.label.text()
if portname in pp:
for (ix, p) in pp[portname]:
if ix == 0:
c = Connection(None, scene, port)
c.attach(1, p)
else:
c = Connection(None, scene, p)
c.attach(1, port)
c.update_path()
def blockParams(self):
item = self.scene.item
dialog = propertiesDialog(self.scene.mainw,
item.parameters,
addButton=False)
ret = dialog.getRet()
if ret:
# store connections to ports
item.parameters = ret # apply new parameters (no effect)
self.recreateBlock(item)
def insertConnection(self, event):
pos = gridPos(event.scenePos())
item = self.ConnectionAt(pos)
if item and isConnection(item):
self.connectionInsertNode(item, pos)
def createNode(self, pos=None):
if not isinstance(pos, (QtCore.QPoint, QtCore.QPointF)):
pos = gridPos(self.event.scenePos())
newnode = Port(None, self.scene, porttype='node')
newnode.setPos(pos)
return newnode
def connectionStart(self, p):
self.conn = Connection(None, self.scene, p)
def connectionNext(self, pos):
newnode = self.createNode(pos)
self.conn.update_path(newnode) # last point
self.conn = Connection(None, self.scene, newnode) #new Connection
def connectionFinish(self, port):
self.conn.update_path(port)
self.conn = None
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
self.scene.update()
def connectionInsertNode(self, conn, pos):
newnode = self.createNode(pos)
p = conn.port[1]
conn.attach(1, newnode)
conn.update_path()
newconn = Connection(None, self.scene)
newconn.attach(0, newnode)
newconn.attach(1, p)
newconn.update_path()
return newconn
def addNetlistMenu(self):
blockname = self.scene.item.blockname
libname = self.scene.item.libname
fname = 'libraries.library_{}.{}'.format(libname, blockname)
exec('import ' + fname) in globals(), locals()
reload(eval(fname))
attributes = dir(eval(fname))
netlistFunctions = []
for attribute in attributes:
if attribute.startswith('netlist'):
netlistFunctions.append(attribute.replace('netlist', ''))
if not 'myhdl' in netlistFunctions:
netlistFunctions.append('myhdl')
for type in netlistFunctions:
def getFunction(type):
def netlistAction():
self.netList(type)
return netlistAction
netlistAction = getFunction(type)
action = self.netlistMenu.addAction(type + " netlist")
action.triggered.connect(netlistAction)
def mouseDoubleClicked(self, obj, event):
pos = gridPos(event.scenePos())
item = self.itemAt(pos, exclude=[isConnection])
if isBlock(item):
if 'diagram' in item.getViews():
self.scene.mainw.descend(item)
else:
views = item.getViews()
fname = None
if len(views) == 1:
viewtype, fname = views.items()[0]
elif len(views) > 1:
d = selectionDialog(views.keys(), title='Select view')
ret = d.getRet()
if ret:
fname = views[ret]
if fname:
for tp, (editor, extension) in viewTypes.items():
if fname.endswith(extension):
cmd = editor
break
if cmd:
os.system(cmd + " " + fname)
else:
error(
"{} is unkown type\nplease see viewTypes in menu Settings -> Edit settings"
.format(source))
return
elif isPort(item, tp='ipin opin iopin node'.split()):
self.scene.item = item
self.portEdit()
if self.conn:
self.conn.remove()
self.conn = None
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
elif isTextItem(item):
font, ok = QtWidgets.QFontDialog.getFont(item.font())
if ok:
item.setFont(font)
def mouseLeftButtonPressed(self, obj, event):
pos = gridPos(event.scenePos())
blocks, ports, nodes, connections, labels = self.sortedItemsAt(pos)
if self.conn: # connection mode
while ports: # try to find in-port
port = ports.pop()
if isInPort(port):
self.connectionFinish(port)
return
while nodes: # else try to find node
node = nodes.pop()
self.connectionFinish(node)
return
# while connections:
# conn = connections.pop()
# if conn != self.conn:
# node = self.connectionInsertNode(conn, pos)
# self.connectionFinish(node)
# return
self.connectionNext(pos)
else: # not in connection mode
while ports:
port = ports.pop()
if isOutPort(port) and not port.connections:
# Try to create new connection starting at selected output port
self.connectionStart(port)
return
while nodes:
node = nodes.pop()
if node in self.scene.selectedItems():
node.setFlag(node.ItemIsMovable)
else:
#starting the connection
self.connectionStart(node)
self.connFromNode = True
def moveMouse(self, obj, event):
if self.connFromNode:
return
pos = gridPos(event.scenePos())
item = self.itemAt(pos)
if self.conn:
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
if item and isInPort(item) or isNode(item):
if len(item.connections) == 0:
self.scene.mainw.view.setCursor(QtCore.Qt.CrossCursor)
else:
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
elif item and isNode(item):
if len(item.connections) == 0:
self.scene.mainw.view.setCursor(QtCore.Qt.CrossCursor)
else:
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
self.conn.update_path(pos)
#return True
elif item:
if isBlock(item):
items = self.scene.selectedItems()
for item in items:
if isBlock(item):
for thing in item.childItems():
if isPort(thing, 'block'):
for conn in thing.connections:
conn.update_path()
#elif isConnection(item):
#self.scene.mainw.view.setCursor(QtCore.Qt.PointingHandCursor)
elif isOutPort(item):
self.scene.mainw.view.setCursor(QtCore.Qt.CrossCursor)
elif isNode(item):
if item in self.scene.selectedItems():
self.scene.mainw.view.setCursor(
QtCore.Qt.PointingHandCursor)
else:
self.scene.mainw.view.setCursor(QtCore.Qt.CrossCursor)
else:
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
def mouseReleased(self, obj, event):
self.connFromNode = False
items = self.scene.selectedItems()
for item in items:
if isBlock(item) or isPort(item) or isComment(item):
item.setPos(gridPos(item.pos()))
for thing in item.childItems():
if isPort(thing, 'block'):
for conn in thing.connections:
conn.update_path()
def mouseRightButtonPressed(self, obj, event):
if self.conn == None:
b, p, c, t = [], [], [], []
for i in self.itemAt(event.scenePos(), single=False):
if isBlock(i):
b.append(i)
elif isPort(i):
p.append(i)
elif isConnection(i):
c.append(i)
elif isComment(i):
t.append(i)
item = p.pop() if p else b.pop() if b else c.pop() if c else t.pop(
) if t else None
if isBlock(item):
self.scene.item = item
# self.netlistMenu.clear()
# self.addNetlistMenu()
self.menuIOBlk.exec_(event.screenPos())
elif isPort(item, ['node', 'ipin', 'opin', 'iopin']):
self.scene.item = item
self.subMenuPort.exec_(event.screenPos())
elif isConnection(item):
self.scene.item = item
self.event = event
self.subMenuConn.exec_(event.screenPos())
elif isComment(item):
self.scene.item = item
self.event = event
self.subMenuText.exec_(event.screenPos())
else:
self.event = event
self.subMenuNothing.exec_(event.screenPos())
def eventFilter(self, obj, event):
if event.type() == QtCore.QEvent.GraphicsSceneMouseMove:
self.moveMouse(obj, event)
self.status.showMessage('{:.1f}, {:.1f}'.format(
event.scenePos().x(),
event.scenePos().y()))
elif event.type() == QtCore.QEvent.GraphicsSceneMousePress:
if event.button() == QtCore.Qt.LeftButton:
self.mouseLeftButtonPressed(obj, event)
elif event.button() == QtCore.Qt.RightButton:
self.mouseRightButtonPressed(obj, event)
elif event.type() == QtCore.QEvent.GraphicsSceneMouseRelease:
self.mouseReleased(obj, event)
elif event.type() == QtCore.QEvent.GraphicsSceneMouseDoubleClick:
self.mouseDoubleClicked(obj, event)
if event.type() == QtCore.QEvent.KeyPress:
if event.key() == QtCore.Qt.Key_Delete:
items = self.scene.selectedItems()
for item in items:
try:
item.remove()
except:
try:
if isComment(item):
self.scene.removeItem(item)
except:
pass
if self.conn:
self.conn.remove()
#self.conn = None
if event.key() == QtCore.Qt.Key_Escape:
if self.conn != None:
self.conn.remove()
self.conn = None
self.scene.mainw.view.setCursor(QtCore.Qt.ArrowCursor)
if event.key() == QtCore.Qt.Key_Control:
self.scene.mainw.view.setDragMode(
QtWidgets.QGraphicsView.ScrollHandDrag)
if event.type() == QtCore.QEvent.KeyRelease and event.key(
) == QtCore.Qt.Key_Control:
self.scene.mainw.view.setDragMode(
QtWidgets.QGraphicsView.RubberBandDrag)
return super(Editor, self).eventFilter(obj, event)
def loadConn(self, item, dx=0.0, dy=0.0):
c = Connection(None, self)
c.load(item, dx, dy)
class Editor(QObject):
""" Editor to handles events"""
def __init__(self, parent):
super(Editor, self).__init__(parent)
self.mainw = parent
self.conn = None
self.scene = None
self.movBlk = False
self.event = None
self.state = IDLE
self.menuIOBlk = QMenu()
parBlkAction = self.menuIOBlk.addAction('Block I/Os')
paramsBlkAction = self.menuIOBlk.addAction('Block Parameters')
flpBlkAction = self.menuIOBlk.addAction('Flip Block')
nameBlkAction = self.menuIOBlk.addAction('Change Name')
cloneBlkAction = self.menuIOBlk.addAction('Clone Block')
copyBlkAction = self.menuIOBlk.addAction('Copy Block')
deleteBlkAction = self.menuIOBlk.addAction('Delete Block')
parBlkAction.triggered.connect(self.parBlock)
flpBlkAction.triggered.connect(self.flipBlock)
nameBlkAction.triggered.connect(self.nameBlock)
paramsBlkAction.triggered.connect(self.paramsBlock)
cloneBlkAction.triggered.connect(self.cloneBlock)
copyBlkAction.triggered.connect(self.copyBlock)
deleteBlkAction.triggered.connect(self.deleteBlock)
self.subMenuConn = QMenu()
connAddAction = self.subMenuConn.addAction('Add connection')
connDelAction = self.subMenuConn.addAction('Delete connection')
connAddAction.triggered.connect(self.addConn)
connDelAction.triggered.connect(self.deleteConn)
self.subMenuEditor = QMenu()
pasteAction = self.subMenuEditor.addAction('Paste')
pasteAction.triggered.connect(self.pasteBlock)
# Matrix has two index [state, event]
# States:
# IDLE 0
# LEFTMOUSEPRESSED 1
# ITEMSELECTED 2
# DRAWFROMOUTPORT 3
# MOVECONN 4
# Events
# MOUSEMOVE 0
# LEFTMOUSEPRESSED 1
# RIGHTMOUSEPRESSED 2
# MOUSERELEASED 3
# MOUSEDOUBLECLICK 4
# KEY_DEL 5
# KEY_ESC 6
self.Fun = [[
self.P00, self.P01, self.P02, self.PDM, self.P03, self.P04,
self.P05
],
[
self.P06, self.PDM, self.PDM, self.P07, self.PDM,
self.PDM, self.PDM
],
[
self.P11, self.P01, self.P02, self.PDM, self.P03,
self.P04, self.P05
],
[
self.P10, self.P08, self.P09, self.PDM, self.PDM,
self.PDM, self.P09
],
[
self.P12, self.PDM, self.PDM, self.P13, self.PDM,
self.PDM, self.PDM
]]
def install(self, scene):
scene.installEventFilter(self)
self.scene = scene
def parBlock(self):
self.scene.DgmToUndo()
ok = self.scene.mainw.parBlock()
if not ok:
self.scene.clearLastUndo()
def flipBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.flip = not item.flip
item.setFlip()
def nameBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
dialog = BlockName_Dialog(self.scene.mainw)
dialog.name.setText(item.name)
res = dialog.exec_()
if res == 1:
item.name = str(dialog.name.text())
item.label.setPlainText(item.name)
w = item.label.boundingRect().width()
item.label.setPos(-w / 2, item.h / 2 + 5)
else:
self.scene.clearLastUndo()
def paramsBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
params = item.params.split('|')
blk = params[0]
blk = blk.replace('Blk', 'Dlg')
streV = 'import ' + blk + ' as dlg'
try:
exec(streV)
name = item.name.replace(' ', '_')
cmd = 'dlg.' + blk + '(' + str(item.inp) + ',' + str(
item.outp) + ',"' + item.params + '"' + ',"' + name + '")'
pars = eval(cmd)
except:
pars = pDlg.parsDialog(item.params)
if pars != item.params:
item.params = pars
else:
self.scene.clearLastUndo()
def cloneBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.clone(QPointF(DP, DP))
def copyBlock(self):
root = etree.Element('root')
item = self.scene.item
item.save(root)
msg = etree.tostring(root, pretty_print=True)
clipboard = QApplication.clipboard()
mimeData = QMimeData()
mimeData.setText(msg.decode())
clipboard.setMimeData(mimeData)
def pasteBlock(self):
self.scene.DgmToUndo()
try:
msg = QApplication.clipboard().text()
root = etree.fromstring(msg)
blocks = root.findall('block')
meanPosX = 0.0
meanPosY = 0.0
numBlk = 0
for item in blocks:
pBlkX = float(item.findtext('posX'))
pBlkY = float(item.findtext('posY'))
meanPosX = meanPosX + pBlkX
meanPosY = meanPosY + pBlkY
numBlk += 1
deltaPosX = self.scene.evpos.x() - meanPosX / numBlk
deltaPosY = self.scene.evpos.y() - meanPosY / numBlk
blocks = root.findall('block')
for item in blocks:
self.scene.loadBlock(item, deltaPosX, deltaPosY)
connections = root.findall('connection')
for item in connections:
self.scene.loadConn(item, deltaPosX, deltaPosY)
try:
self.editor.redrawNodes()
except:
pass
except:
pass
def deleteBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.remove()
self.removeNodes()
self.redrawNodes()
def connectInPort(self, item):
if len(item.connections) == 0:
self.conn.port2 = item
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
if len(self.conn.connPoints) == 0:
pos1 = QPointF((self.conn.pos2.x() + self.conn.pos1.x()) / 2,
self.conn.pos1.y())
pos2 = QPointF((self.conn.pos2.x() + self.conn.pos1.x()) / 2,
self.conn.pos2.y())
self.conn.connPoints.append(self.gridPos(pos1))
self.conn.connPoints.append(self.gridPos(pos2))
else:
pt = self.conn.connPoints[-1]
pos1 = QPointF(pt.x(), self.conn.pos2.y())
self.conn.connPoints.append(self.gridPos(pos1))
self.conn.clean()
self.conn.update_path()
self.conn = None
def deleteConn(self):
self.scene.DgmToUndo()
self.scene.item.remove()
self.removeNodes()
self.redrawNodes()
def find_exact_pos(self, c, pos):
# Find exact point on connection c
points = [c.pos1]
for el in c.connPoints:
points.append(el)
points.append(c.pos2)
N = len(points)
for n in range(0, N - 1):
p1 = points[n]
p2 = points[n + 1]
rect = QRectF(p1 - QPointF(DB, DB), p2 + QPointF(DB, DB))
if rect.contains(pos):
if p1.x() == p2.x():
pos.setX(p1.x())
if p1.y() == p2.y():
pos.setY(p1.y())
return n, pos
def addConn(self):
self.scene.DgmToUndo()
c = self.scene.item
posMouse = self.gridPos(self.scene.evpos)
self.conn = Connection(None, self.scene)
self.conn.port1 = c.port1
self.conn.pos1 = c.pos1
try:
npos, pos = self.find_exact_pos(c, posMouse)
except:
return
N = len(c.connPoints)
if npos == 0:
pos = posMouse
npt = 0
elif npos == N:
pos = posMouse
npt = N
else:
npt = npos
for n in range(0, npt):
self.conn.connPoints.append(c.connPoints[n])
self.conn.connPoints.append(pos)
self.state = DRAWFROMOUTPORT
def redrawSelectedItems(self):
for item in self.scene.selectedItems():
if isinstance(item, Block):
item.setPos(item.scenePos())
for el in item.childItems():
try:
for conn in el.connections:
conn.update_pos_from_ports()
except:
pass
def clean_points(self, pts, m):
N = len(pts)
remPt = []
for n in range(1, N - 1):
if m == 'x':
if pts[n - 1].x() == pts[n].x() == pts[n + 1].x():
remPt.append(pts[n])
elif m == 'y':
if pts[n - 1].y() == pts[n].y() == pts[n + 1].y():
remPt.append(pts[n])
for el in remPt:
pts.remove(el)
return pts
def ptInLine(self, pt, p1, p2):
rect = QRectF(p1 - QPointF(0.5, 0.5), p2 + QPointF(0.5, 0.5))
if rect.contains(pt):
return True
else:
return False
def setNode(self, pts1, pts2):
pts1 = self.clean_points(pts1, 'x')
pts1 = self.clean_points(pts1, 'y')
pts2 = self.clean_points(pts2, 'x')
pts2 = self.clean_points(pts2, 'y')
n = 0
N = min(len(pts1), len(pts2))
try:
while pts1[n] == pts2[n] and n < N:
n += 1
p1_prev = pts1[n - 1]
p1 = pts1[n]
p2_prev = pts2[n - 1]
p2 = pts2[n]
if self.ptInLine(p1, p2_prev, p2):
pos = p1
elif self.ptInLine(p2, p1_prev, p1):
pos = p2
else:
pos = p1_prev
node = Node(None, self.scene)
node.setPos(pos)
except:
pass
def redrawNodesFromPort(self, p):
N = len(p.connections)
for n in range(0, N):
pts1 = [p.connections[n].pos1]
for el in p.connections[n].connPoints:
pts1.append(el)
pts1.append(p.connections[n].pos2)
for m in range(n + 1, N):
pts2 = [p.connections[m].pos1]
for el in p.connections[m].connPoints:
pts2.append(el)
pts2.append(p.connections[m].pos2)
self.setNode(pts1, pts2)
def redrawNodes(self):
for el in self.scene.items():
if isinstance(el, Node):
el.remove()
for item in self.scene.items():
if isinstance(item, Block):
for p in item.childItems():
if isinstance(p, OutPort):
if len(p.connections) > 1:
self.redrawNodesFromPort(p)
def removeNodes(self):
for el in self.scene.items():
if isinstance(el, Node):
el.remove()
def itemAt(self, pos):
rect = QRectF(pos + QPointF(-DB, -DB), QSizeF(2 * DB, 2 * DB))
items = self.scene.items(rect)
for item in items:
if isinstance(self.findBlockAt(pos), Block):
return item
for item in items:
if isinstance(self.findOutPortAt(pos), OutPort):
return item
for item in items:
if isinstance(self.findInPortAt(pos), InPort):
return (item)
for item in items:
if isinstance(self.findConnectionAt(pos), Connection):
return (item)
return None
def itemByDraw(self, pos):
rect = QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB))
items = self.scene.items(
QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB)))
for item in items:
if isinstance(item, InPort):
return (item)
return None
def findInPortAt(self, pos):
items = self.scene.items(
QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB)))
for el in items:
if isinstance(el, InPort):
return el
return None
def findOutPortAt(self, pos):
items = self.scene.items(
QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB)))
for el in items:
if isinstance(el, OutPort):
return el
return None
def findBlockAt(self, pos):
items = self.scene.items(
QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB)))
for el in items:
if isinstance(el, Block):
return el
return None
def findConnectionAt(self, pos):
items = self.scene.items(
QRectF(pos - QPointF(DB, DB), QSizeF(2 * DB, 2 * DB)))
for c in items:
if isinstance(c, Connection):
points = [c.pos1]
for el in c.connPoints:
points.append(el)
points.append(c.pos2)
N = len(points)
for n in range(0, N - 1):
p1 = points[n]
p2 = points[n + 1]
rect = QRectF(p1 - QPointF(DB, DB), p2 + QPointF(DB, DB))
if rect.contains(pos):
return c
return None
def deleteSelected(self):
items = self.scene.selectedItems()
self.scene.DgmToUndo()
for item in items:
try:
item.remove()
self.editor.removeNodes()
self.editor.redrawNodes()
except:
pass
def deselect_all(self):
for el in self.scene.items():
el.setSelected(False)
def setMouseInitDraw(self, pos):
pointer = Qt.ArrowCursor
if isinstance(self.findBlockAt(pos), Block):
pointer = Qt.ArrowCursor
elif isinstance(self.findOutPortAt(pos), OutPort):
pointer = Qt.CrossCursor
elif isinstance(self.findConnectionAt(pos), Connection):
pointer = Qt.PointingHandCursor
else:
pointer = Qt.ArrowCursor
self.scene.mainw.view.setCursor(pointer)
def setMouseByDraw(self, item):
if isinstance(item, InPort) and len(item.connections) == 0:
pointer = Qt.CrossCursor
else:
pointer = Qt.DragLinkCursor
self.scene.mainw.view.setCursor(pointer)
def PDM(self, obj, event): # Dummy function - No action
pass
def P00(self, obj, event): # IDLE + MOUSEMOVE
self.setMouseInitDraw(event.scenePos())
item = self.itemAt(event.scenePos())
if item == None:
self.deselect_all()
else:
try:
item.setSelected(True)
except:
pass
self.scene.updateDgm()
def P01(self, obj, event): # IDLE, ITEMSELECTED + LEFTMOUSEPRESSED
item = self.findConnectionAt(event.scenePos())
if item != None:
self.scene.currentItem = item
self.currentPos = event.scenePos()
self.deselect_all()
self.scene.DgmToUndo()
self.state = MOVECONN
else:
self.state = LEFTMOUSEPRESSED
def P02(self, obj, event): # IDLE, ITEMSELECTED + RIGHTMOUSEPRESSED
item = self.findBlockAt(event.scenePos())
self.deselect_all()
if isinstance(item, Block):
item.setSelected(True)
self.scene.item = item
self.scene.evpos = event.scenePos()
try:
self.menuIOBlk.exec_(event.screenPos())
except:
pass
else:
item = self.findConnectionAt(event.scenePos())
if isinstance(item, Connection):
self.scene.item = item
self.scene.evpos = event.scenePos()
try:
self.subMenuConn.exec_(event.screenPos())
except:
pass
if item == None:
self.scene.evpos = event.scenePos()
self.subMenuEditor.exec_(event.screenPos())
def P03(self, obj, event): # IDLE, ITEMSELECTED + MOUSEDOUBLECLICK
item = self.findBlockAt(event.scenePos())
self.deselect_all()
if isinstance(item, Block):
item.setSelected(True)
self.scene.item = item
self.scene.evpos = event.scenePos()
self.paramsBlock()
def P04(self, obj, event): # ITEMSELECTED + KEY_DEL
self.deleteSelected()
self.state = IDLE
self.redrawNodes()
def P05(self, obj, event): # ITEMSELECTED + KEY_ESC
self.state = IDLE
def P06(self, obj, event): # LEFTMOUSEPRESSED + MOUSEMOVE
self.redrawSelectedItems()
self.removeNodes()
item = self.itemAt(event.scenePos())
def P07(self, obj, event): # LEFTMOUSEPRESSED + MOUSERELEASED
self.redrawSelectedItems()
self.redrawNodes()
item = self.itemAt(event.scenePos())
if self.scene.currentItem != None:
self.scene.currentItem = None
self.deselect_all()
try:
item.setSelected(True)
self.scene.currentItem = item
except:
pass
if self.scene.selectedItems():
self.state = ITEMSELECTED
else:
self.state = IDLE
item = self.findOutPortAt(event.scenePos())
if isinstance(item, OutPort):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
self.conn = Connection(None, self.scene)
self.conn.port1 = item
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
def P08(self, obj, event): # DRAWFROMOUTPORT + LEFTMOUSEPRESSED
item = self.findInPortAt(event.scenePos())
if isinstance(item, InPort):
self.connectInPort(item)
self.redrawNodes()
self.state = IDLE
else:
pt = self.gridPos(event.scenePos())
self.conn.addPoint(pt)
self.conn.pos2 = pt
self.conn.update_path()
def P09(self, obj, event): # DRAWFROMOUTPORT + RIGHTMOUSEPRESSED, KEY_ESC
try:
self.conn.remove()
self.scene.undoDgm()
except:
pass
self.conn = None
self.state = IDLE
def P10(self, obj, event): # DRAWFROMOUTPORT + MOUSEMOVE
item = self.itemByDraw(event.scenePos())
self.setMouseByDraw(item)
self.conn.pos2 = event.scenePos()
if isinstance(item, InPort):
self.conn.update_path_draw2Port()
else:
self.conn.update_path_draw2Pt()
def P11(self, obj, event): # ITEMSELECTED + MOUSEMOVE
self.setMouseInitDraw(event.scenePos())
def P12(self, obj, event): # MOVECONN + MOUSEMOVE
item = self.scene.currentItem
N = len(item.connPoints)
oldPos = self.currentPos
newPos = self.gridPos(event.scenePos())
try:
npos, pos = self.find_exact_pos(item, oldPos)
except:
return
if npos != 0 and npos != N:
ok = item.move(npos, newPos)
if ok:
self.currentPos = newPos
def P13(self, obj, event): # MOVECONN + MOUSERELEASE
item = self.scene.currentItem
N = len(item.connPoints)
oldPos = self.currentPos
newPos = self.gridPos(event.scenePos())
try:
npos, pos = self.find_exact_pos(item, oldPos)
except:
return
if npos != 0 and npos != N:
ok = item.move(npos, newPos)
if ok:
self.currentPos = newPos
self.redrawNodes()
self.scene.currentItem = None
self.state = IDLE
def eventFilter(self, obj, event):
ev = -1
if event.type() == QEvent.GraphicsSceneMouseMove:
ev = 0
if event.type() == QEvent.GraphicsSceneMousePress:
self.mainw.statusLabel.setText('')
if event.button() == Qt.LeftButton:
ev = 1
if event.button() == Qt.RightButton:
ev = 2
if event.type() == QEvent.GraphicsSceneMouseRelease:
ev = 3
if event.type() == QEvent.GraphicsSceneMouseDoubleClick:
self.mainw.statusLabel.setText('')
ev = 4
if event.type() == QEvent.KeyPress:
self.mainw.statusLabel.setText('')
if event.key() == Qt.Key_Delete:
ev = 5
if event.key() == Qt.Key_Escape:
ev = 6
if ev != -1:
#if ev != 0:
#print('state->', self.state, 'event->',ev)
fun = self.Fun[self.state][ev]
fun(obj, event)
return False
def gridPos(self, pt):
gr = GRID
x = gr * ((pt.x() + gr / 2) // gr)
y = gr * ((pt.y() + gr / 2) // gr)
return QPointF(x, y)
def dataToDiagram(self,
blocks,
connections,
nodes,
comments,
center=True,
undo=False):
errors = []
for data in blocks:
prop = data['properties'] if 'properties' in data else dict()
if 'parameters' in data:
#getBlock(libname, blockname, parent=None, scene=None, param=dict(), name=None, flip=False)
b = getBlock(data['libname'],
data['blockname'],
scene=self.scene,
param=data['parameters'],
properties=prop,
errors=errors)
else:
b = getBlock(data['libname'],
data['blockname'],
scene=self.scene,
properties=prop,
errors=errors)
if b:
b.fromData(data)
for item in nodes:
pos = QtCore.QPointF(item['x'], item['y'])
if self.scene.find_itemAt(pos):
print('discarding overlapping node at x={}, y={}'.format(
item['x'], item['y']))
else:
p = Port(None, self.scene)
p.fromData(item)
for data in connections:
pos = [QtCore.QPointF(data['x0'], data['y0'])]
pos.append(QtCore.QPointF(data['x1'], data['y1']))
if pos[0] == pos[1]:
print('discarding zero length segment x={}, y={}'.format(
data['x0'], data['y0']))
else:
conn = Connection(None, self.scene)
for ix in [0, 1]:
port = self.scene.find_itemAt(pos[ix],
exclude=(Block, Connection,
textItem))
if isPort(port):
conn.attach(ix, port)
else:
conn.pos[ix] = pos[ix]
print('no port at ', pos[ix])
conn.update_path()
if 'label' in data:
conn.label = textItem(data['label'], anchor=3, parent=conn)
conn.label.setPos(conn.pos2.x(), conn.pos2.y())
if 'signalType' in data:
conn.signalType = textItem(data['signalType'],
anchor=3,
parent=conn)
conn.signalType.setPos(conn.pos2.x(), conn.pos2.y())
for data in comments:
comment = Comment('')
comment.fromData(data)
self.scene.addItem(comment)
if center:
self.scene.mainw.view.centerOn(self.scene.getCenter()[0],
self.scene.getCenter()[1])
if errors:
error('\n'.join(errors))
class Editor(QtCore.QObject):
""" Editor to handles events"""
def __init__(self, parent):
super(Editor, self).__init__(parent)
self.conn = None
self.scene = None
self.movBlk = False
self.event = None
self.connFromNode = False
self.state = IDLE
self.menuIOBlk = QMenu()
parBlkAction = self.menuIOBlk.addAction('Block I/Os')
paramsBlkAction = self.menuIOBlk.addAction('Block Parameters')
flpBlkAction = self.menuIOBlk.addAction('Flip Block')
nameBlkAction = self.menuIOBlk.addAction('Change Name')
cloneBlkAction = self.menuIOBlk.addAction('Clone Block')
deleteBlkAction = self.menuIOBlk.addAction('Delete Block')
parBlkAction.triggered.connect(self.parBlock)
flpBlkAction.triggered.connect(self.flipBlock)
nameBlkAction.triggered.connect(self.nameBlock)
paramsBlkAction.triggered.connect(self.paramsBlock)
cloneBlkAction.triggered.connect(self.cloneBlock)
deleteBlkAction.triggered.connect(self.deleteBlock)
self.subMenuNode = QMenu()
nodeDelAction = self.subMenuNode.addAction('Delete node')
nodeBindAction = self.subMenuNode.addAction('Bind node')
nodeDelAction.triggered.connect(self.deleteNode)
nodeBindAction.triggered.connect(self.bindNode)
self.subMenuConn = QMenu()
connConnectAction = self.subMenuConn.addAction('Start connection')
connDelAction = self.subMenuConn.addAction('Delete connection')
connInsAction = self.subMenuConn.addAction('Insert node')
connConnectAction.triggered.connect(self.newConn)
connDelAction.triggered.connect(self.deleteConn)
connInsAction.triggered.connect(self.insConn)
# Matrix has two index [state, event]
# States:
# IDLE 0
# LEFTMOUSEPRESSED 1
# ITEMSELECTED 2
#DRAWFROMOUTPORT 3
# Events
# MOUSEMOVE 0
# LEFTMOUSEPRESSED 1
# RIGHTMOUSEPRESSED 2
# MOUSERELEASED 3
# MOUSEDOUBLECLICK 4
# KEY_DEL 5
# KEY_ESC 6
self.Fun = [[
self.P00, self.P01, self.P02, self.PDM, self.P03, self.P04,
self.P05
],
[
self.P06, self.PDM, self.PDM, self.P07, self.PDM,
self.PDM, self.PDM
],
[
self.P12, self.P01, self.P02, self.P11, self.P03,
self.P04, self.P05
],
[
self.P10, self.P08, self.P09, self.PDM, self.PDM,
self.PDM, self.P09
]]
def parBlock(self):
self.scene.DgmToUndo()
ok = self.scene.mainw.parBlock()
if not ok:
self.scene.clearLastUndo()
def flipBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.flip = not item.flip
item.setFlip()
def nameBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
dialog = BlockName_Dialog(self.scene.mainw)
dialog.name.setText(item.name)
res = dialog.exec_()
if res == 1:
item.name = str(dialog.name.text())
item.label.setPlainText(item.name)
w = item.label.boundingRect().width()
item.label.setPos(-w / 2, item.h / 2 + 5)
else:
self.scene.clearLastUndo()
def paramsBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
params = item.params.split('|')
blk = params[0]
blk = blk.replace('Blk', 'Dlg')
if blk in dir(pDlg):
name = item.name.replace(' ', '_')
cmd = 'pDlg.' + blk + '(' + str(item.inp) + ',' + str(
item.outp) + ',"' + item.params + '"' + ',"' + name + '")'
pars = eval(cmd)
else:
pars = pDlg.parsDialog(item.params)
if pars != item.params:
item.params = pars
else:
self.scene.clearLastUndo()
def cloneBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.clone(QtCore.QPointF(100, 100))
def deleteBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.remove()
def newNode(self, item, pos):
port2 = item.port2
pos2 = item.pos2
c = Connection(None, self.scene)
b = Node(None, self.scene)
b.setPos(pos)
self.lastNode = b
item.port2.connections.remove(item)
item.port2.connections.append(c)
item.port2 = b.port_in
item.port2.connections.append(item)
item.pos2 = b.pos()
c.port1 = b.port_out
c.port2 = port2
c.port1.connections.append(c)
c.pos1 = b.pos()
c.pos2 = pos2
item.update_path()
c.update_path()
self.scene.isInsConn = False
self.scene.isConnecting = True
def insertConnection(self, event):
item = self.itemAt(self.scene.evpos)
self.newNode(item, self.scene.evpos)
def genInterPoint(self, p2):
p1 = self.conn.pos1
dx = np.abs(p2.x() - p1.x())
dy = np.abs(p2.y() - p1.y())
if isinstance(self.conn.port1, OutPort):
pt = QtCore.QPointF(p2.x(), p1.y())
else:
if dx > dy:
pt = QtCore.QPointF(p2.x(), p1.y())
else:
pt = QtCore.QPointF(p1.x(), p2.y())
return pt
def deleteNode(self):
self.scene.DgmToUndo()
self.scene.item.remove()
def bindNode(self):
self.scene.DgmToUndo()
item = self.scene.item
if len(item.port_out.connections) == 1:
c1 = item.port_in.connections[0]
c2 = item.port_out.connections[0]
c = Connection(None, self.scene)
c.pos1 = c1.pos1
c.pos2 = c2.pos2
item.remove()
c.update_ports_from_pos()
if isinstance(c.port1, OutPort) and isinstance(c.port2, InPort):
pos = QtCore.QPointF((c.pos2.x() + c.pos1.x()) / 2, c.pos1.y())
self.newNode(c, pos)
else:
self.scene.clearLastUndo()
def newConn(self):
self.scene.DgmToUndo()
if not self.conn:
self.insertConnection(self.event)
item = self.lastNode
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
else:
self.scene.clearLastUndo()
def deleteConn(self):
self.scene.DgmToUndo()
self.scene.item.remove()
def insConn(self):
self.scene.DgmToUndo()
if not self.conn:
self.insertConnection(self.event)
else:
self.scene.clearLastUndo()
def install(self, scene):
scene.installEventFilter(self)
self.scene = scene
def itemAt(self, pos):
items = self.scene.items(
QtCore.QRectF(pos - QtCore.QPointF(DB, DB),
QtCore.QSizeF(2 * DB, 2 * DB)))
for item in items:
if isinstance(item, QGraphicsItem):
return item
return None
def deselect_all(self):
for el in self.scene.items():
el.setSelected(False)
def setMouseInitDraw(self, item):
if isinstance(item, Block):
pointer = QtCore.Qt.ArrowCursor
elif isinstance(item, OutPort) and len(item.connections) == 0:
pointer = QtCore.Qt.CrossCursor
elif isinstance(item, Node):
pointer = QtCore.Qt.CrossCursor
elif isinstance(item, Connection):
pointer = QtCore.Qt.PointingHandCursor
else:
pointer = QtCore.Qt.ArrowCursor
self.scene.mainw.view.setCursor(pointer)
def setMouseByDraw(self, item):
if isinstance(item, Block):
pointer = QtCore.Qt.ArrowCursor
elif isinstance(item, InPort) and len(item.connections) == 0:
pointer = QtCore.Qt.CrossCursor
elif isinstance(item, Node) and len(item.port_in.connections) == 0:
pointer = QtCore.Qt.CrossCursor
elif isinstance(item, Connection):
pointer = QtCore.Qt.PointingHandCursor
else:
pointer = QtCore.Qt.ArrowCursor
self.scene.mainw.view.setCursor(pointer)
def PDM(self, obj, event): # Dummy function - No action
pass
def P00(self, obj, event):
item = self.itemAt(event.scenePos())
self.setMouseInitDraw(item)
item = self.itemAt(event.scenePos())
if item == None:
self.deselect_all()
else:
try:
item.setSelected(True)
except:
pass
self.scene.updateDgm()
def P01(self, obj, event):
self.scene.currentItem = self.itemAt(event.scenePos())
self.state = LEFTMOUSEPRESSED
#self.scene.mainw.status.showMessage('LEFTMOUSEPRESSED')
def P02(self, obj, event):
item = self.itemAt(event.scenePos())
self.deselect_all()
if isinstance(item, Block):
item.setSelected(True)
self.scene.item = item
self.scene.evpos = event.scenePos()
try:
self.menuIOBlk.exec_(event.screenPos())
except:
pass
if isinstance(item, Node):
self.scene.item = item
try:
self.subMenuNode.exec_(event.screenPos())
except:
pass
if isinstance(item, Connection):
self.scene.item = item
self.scene.evpos = event.scenePos()
try:
self.subMenuConn.exec_(event.screenPos())
except:
pass
def P03(self, obj, event):
item = self.itemAt(event.scenePos())
self.deselect_all()
if isinstance(item, Block):
item.setSelected(True)
self.scene.item = item
self.scene.evpos = event.scenePos()
self.paramsBlock()
def P04(self, obj, event):
items = self.scene.selectedItems()
for item in items:
self.scene.DgmToUndo()
try:
item.remove()
except:
pass
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
def P05(self, obj, event):
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
def P06(self, obj, event):
item = self.itemAt(event.scenePos())
#self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if isinstance(item, Block) or isinstance(item, Node):
self.scene.DgmToUndo()
def P07(self, obj, event):
item = self.itemAt(event.scenePos())
if self.scene.currentItem != None:
self.deselect_all()
try:
item.setSelected(True)
self.scene.currentItem = item
except:
pass
if self.scene.selectedItems():
self.state = ITEMSELECTED
#self.scene.mainw.status.showMessage('ITEMSELECTED')
else:
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if isinstance(item, OutPort):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
if len(item.connections) == 0:
self.conn = Connection(None, self.scene)
self.conn.port1 = item
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
if isinstance(item, Node):
self.scene.DgmToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
self.scene.updateDgm()
def P08(self, obj, event):
item = self.itemAt(event.scenePos())
if isinstance(item, InPort):
if len(item.connections) == 0:
self.scene.DgmToUndo()
self.conn.port2 = item
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
if isinstance(self.conn.port1, OutPort):
pos = QtCore.QPointF(
(self.conn.pos2.x() + self.conn.pos1.x()) / 2,
self.conn.pos1.y())
self.newNode(self.conn, pos)
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if isinstance(item, Node):
if item.port_in.connections == []:
self.scene.DgmToUndo()
self.conn.port2 = item.port_in
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn) # Problema qui!
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
if item == None:
pt = self.genInterPoint(event.scenePos())
b = Node(None, self.scene)
b.setPos(pt)
self.conn.port2 = b.port_in
self.conn.pos2 = b.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
self.conn.update_path()
self.conn = Connection(None, self.scene)
self.conn.port1 = b.port_out
self.conn.pos1 = b.scenePos()
self.conn.pos2 = b.scenePos()
def P09(self, obj, event):
try:
item = self.itemAt(event.scenePos())
except:
item = None
if isinstance(item, InPort):
if len(item.connections) == 0:
self.scene.DgmToUndo()
self.conn.port2 = item
self.conn.pos2 = item.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
if isinstance(self.conn.port1, OutPort):
pos = QtCore.QPointF(
(self.conn.pos2.x() + self.conn.pos1.x()) / 2,
self.conn.pos1.y())
self.newNode(self.conn, pos)
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
else:
pt = self.genInterPoint(self.conn.pos2)
b = Node(None, self.scene)
b.setPos(pt)
self.conn.port2 = b.port_in
self.conn.pos2 = b.scenePos()
self.conn.port1.connections.append(self.conn)
self.conn.port2.connections.append(self.conn)
self.conn.update_path()
self.conn = None
self.state = IDLE
#self.scene.mainw.status.showMessage('IDLE')
def P10(self, obj, event):
item = self.itemAt(event.scenePos())
self.setMouseByDraw(item)
pt = self.genInterPoint(event.scenePos())
self.conn.pos2 = pt
self.conn.update_path()
def P11(self, obj, event):
item = self.itemAt(event.scenePos())
if isinstance(item, Node):
self.scene.DmgToUndo()
self.state = DRAWFROMOUTPORT
#self.scene.mainw.status.showMessage('DRAWFROMOUTPORT')
self.conn = Connection(None, self.scene)
self.conn.port1 = item.port_out
self.conn.pos1 = item.scenePos()
self.conn.pos2 = item.scenePos()
def P12(self, obj, event):
item = self.itemAt(event.scenePos())
self.setMouseInitDraw(item)
def eventFilter(self, obj, event):
ev = -1
if event.type() == QtCore.QEvent.GraphicsSceneMouseMove:
ev = 0
if event.type() == QtCore.QEvent.GraphicsSceneMousePress:
if event.button() == QtCore.Qt.LeftButton:
ev = 1
if event.button() == QtCore.Qt.RightButton:
ev = 2
if event.type() == QtCore.QEvent.GraphicsSceneMouseRelease:
ev = 3
if event.type() == QtCore.QEvent.GraphicsSceneMouseDoubleClick:
ev = 4
if event.type() == QtCore.QEvent.KeyPress:
if event.key() == QtCore.Qt.Key_Delete:
ev = 5
if event.key() == QtCore.Qt.Key_Escape:
ev = 6
if ev != -1:
fun = self.Fun[self.state][ev]
fun(obj, event)
return False
def gridPos(self, pt):
gr = GRID
x = gr * ((pt.x() + gr / 2) // gr)
y = gr * ((pt.y() + gr / 2) // gr)
return QtCore.QPointF(x, y)
