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 find_itemAt(self, pos):
items = self.items(
QtCore.QRectF(pos - QtCore.QPointF(1, 1), QtCore.QSizeF(3, 3)))
for item in items:
if isinstance(item,
QGraphicsItem) and not isinstance(item, Connection):
return item
return None
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 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 pasteAct(self):
if self.scene.selection != []:
for item in self.scene.selection:
if isinstance(item, Block) or isinstance(item, Node):
try:
item.clone(QtCore.QPointF(200, 200))
except:
pass
for item in self.scene.selection:
if isinstance(item, Connection):
try:
c = item.clone(QtCore.QPointF(200, 200))
c.update_ports_from_pos()
except:
pass
def __init__(self, library, fname, mypath, runflag, parent=None):
super(SupsiSimMainWindow, self).__init__(parent)
self.resize(1024, 768)
self.centralWidget = QWidget(self)
self.verticalLayout = QVBoxLayout(self.centralWidget)
#self.verticalLayout.setMargin(0)
self.view = GraphicsView(self.centralWidget)
self.view.setMouseTracking(True)
self.scene = Scene(self)
self.view.setScene(self.scene)
self.view.setRenderHint(QPainter.Antialiasing)
self.verticalLayout.addWidget(self.view)
self.setCentralWidget(self.centralWidget)
self.addactions()
self.addMenubar()
self.addToolbars()
self.filename = fname
self.path = mypath
self.library = library
self.runflag = runflag
if fname != 'untitled':
self.scene.loadDgm(self.getFullFileName())
self.setWindowTitle(self.filename)
self.status = self.statusBar()
self.evpos = QtCore.QPointF(0, 0)
self.editor = Editor(self)
self.editor.install(self.scene)
self.status.showMessage('Ready')
self.modified = False
def __init__(self, parent=None):
super(GraphicsView, self).__init__(parent)
self.setDragMode(QGraphicsView.RubberBandDrag)
self.setSceneRect(QtCore.QRectF(-2000, -2000, 4000, 4000))
self.setRenderHint(QPainter.Antialiasing)
self.setRenderHint(QPainter.TextAntialiasing)
self.setAcceptDrops(True)
def openFile(self):
fname = self.filename
try:
os.remove(fname + '.py')
except:
pass
if self.modified:
ret = self.askSaving()
if ret == QMessageBox.Save:
self.saveFile()
elif ret == QMessageBox.Cancel:
return
self.scene.newDgm()
filename = QFileDialog.getOpenFileName(self,
'Open',
'.',
filter='*.dgm')
filename = filename[0]
if filename != '':
fname = QtCore.QFileInfo(filename)
self.filename = str(fname.baseName())
self.path = str(fname.absolutePath())
self.setWindowTitle(self.filename)
self.scene.loadDgm(self.getFullFileName())
self.modified = False
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
def setPos(self, *args):
if len(args) == 1:
pt = self.gridPos(args[0])
super(Block, self).setPos(pt)
else:
pt = QtCore.QPointF(args[0], args[1])
pt = self.gridPos(pt)
super(Block, self).setPos(pt)
def update_path(self):
p = QPainterPath()
item = None
if self.port2 == None:
item = self.scene.find_itemAt(self.pos2)
if isinstance(self.port1, OutPort):
pt = QtCore.QPointF(self.pos2.x(),self.pos1.y())
elif isinstance(self.port2, InPort) or isinstance(item, InPort):
pt = QtCore.QPointF(self.pos1.x(),self.pos2.y())
else:
dx = np.abs(self.pos2.x()-self.pos1.x())
dy = np.abs(self.pos2.y()-self.pos1.y())
if dx > dy:
pt = QtCore.QPointF(self.pos2.x(),self.pos1.y())
else:
pt = QtCore.QPointF(self.pos1.x(),self.pos2.y())
p.moveTo(self.pos1)
p.lineTo(pt)
p.lineTo(self.pos2)
self.setPath(p)
def saveFile(self):
filename = QFileDialog.getSaveFileName(self,
'Save',
self.path + '/' + self.filename,
filter='*.dgm')
filename = filename[0]
if filename != '':
fname = QtCore.QFileInfo(filename)
self.filename = str(fname.baseName())
self.path = str(fname.absolutePath())
self.setWindowTitle(self.filename)
self.scene.saveDgm(self.getFullFileName())
self.modified = False
def mouseMoveEvent(self, event):
if event.buttons() == QtCore.Qt.LeftButton and isinstance(
self.actComp, Block):
mimeData = QtCore.QMimeData()
if self.actComp.iosetble:
io = '1'
else:
io = '0'
data = self.actComp.name + '@' + self.actComp.inp.__str__(
) + '@' + self.actComp.outp.__str__(
) + '@' + io + '@' + self.actComp.icon + '@' + self.actComp.params
mimeData.setText(data)
drag = QDrag(self.parent)
drag.setMimeData(mimeData)
drag.exec_(QtCore.Qt.CopyAction)
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 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 __init__(self, filename='untitled', runflag=False):
if filename != 'untitled':
self.fname = QtCore.QFileInfo(filename)
self.mypath = str(self.fname.absolutePath())
self.fname = str(self.fname.baseName())
else:
self.fname = 'untitled'
self.mypath = os.getcwd()
self.runflag = runflag
app = QApplication(sys.argv)
library = Library()
library.setGeometry(20, 20, 400, 980)
library.show()
main = SupsiSimMainWindow(library, self.fname, self.mypath,
self.runflag)
main.setGeometry(500, 100, 1024, 768)
main.show()
ret = app.exec_()
app.deleteLater()
def cloneBlock(self):
self.scene.DgmToUndo()
item = self.scene.item
item.clone(QtCore.QPointF(100, 100))
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)
