944 lines
35 KiB
Python
944 lines
35 KiB
Python
# -*- coding: utf-8 -*-
|
|
from pyqtgraph.Qt import QtCore, QtGui
|
|
#from PyQt4 import QtCore, QtGui
|
|
#from PySide import QtCore, QtGui
|
|
#import Node as NodeMod
|
|
from Node import *
|
|
#import functions
|
|
from collections import OrderedDict
|
|
from pyqtgraph.widgets.TreeWidget import *
|
|
#from .. DataTreeWidget import *
|
|
import FlowchartTemplate
|
|
import FlowchartCtrlTemplate
|
|
from Terminal import Terminal
|
|
from numpy import ndarray
|
|
import library
|
|
from pyqtgraph.debug import printExc
|
|
import pyqtgraph.configfile as configfile
|
|
import pyqtgraph.dockarea as dockarea
|
|
import pyqtgraph as pg
|
|
import FlowchartGraphicsView
|
|
|
|
def strDict(d):
|
|
return dict([(str(k), v) for k, v in d.iteritems()])
|
|
|
|
|
|
def toposort(deps, nodes=None, seen=None, stack=None, depth=0):
|
|
"""Topological sort. Arguments are:
|
|
deps dictionary describing dependencies where a:[b,c] means "a depends on b and c"
|
|
nodes optional, specifies list of starting nodes (these should be the nodes
|
|
which are not depended on by any other nodes)
|
|
"""
|
|
|
|
if nodes is None:
|
|
## run through deps to find nodes that are not depended upon
|
|
rem = set()
|
|
for dep in deps.itervalues():
|
|
rem |= set(dep)
|
|
nodes = set(deps.keys()) - rem
|
|
if seen is None:
|
|
seen = set()
|
|
stack = []
|
|
sorted = []
|
|
#print " "*depth, "Starting from", nodes
|
|
for n in nodes:
|
|
if n in stack:
|
|
raise Exception("Cyclic dependency detected", stack + [n])
|
|
if n in seen:
|
|
continue
|
|
seen.add(n)
|
|
#print " "*depth, " descending into", n, deps[n]
|
|
sorted.extend( toposort(deps, deps[n], seen, stack+[n], depth=depth+1))
|
|
#print " "*depth, " Added", n
|
|
sorted.append(n)
|
|
#print " "*depth, " ", sorted
|
|
return sorted
|
|
|
|
|
|
class Flowchart(Node):
|
|
|
|
sigFileLoaded = QtCore.Signal(object)
|
|
sigFileSaved = QtCore.Signal(object)
|
|
|
|
|
|
#sigOutputChanged = QtCore.Signal() ## inherited from Node
|
|
sigChartLoaded = QtCore.Signal()
|
|
sigStateChanged = QtCore.Signal()
|
|
|
|
def __init__(self, terminals=None, name=None, filePath=None):
|
|
if name is None:
|
|
name = "Flowchart"
|
|
if terminals is None:
|
|
terminals = {}
|
|
self.filePath = filePath
|
|
Node.__init__(self, name) ## create node without terminals; we'll add these later
|
|
|
|
self.inputWasSet = False ## flag allows detection of changes in the absence of input change.
|
|
self._nodes = {}
|
|
self.nextZVal = 10
|
|
#self.connects = []
|
|
#self._chartGraphicsItem = FlowchartGraphicsItem(self)
|
|
self._widget = None
|
|
self._scene = None
|
|
self.processing = False ## flag that prevents recursive node updates
|
|
|
|
self.widget()
|
|
|
|
self.inputNode = Node('Input', allowRemove=False, allowAddOutput=True)
|
|
self.outputNode = Node('Output', allowRemove=False, allowAddInput=True)
|
|
self.addNode(self.inputNode, 'Input', [-150, 0])
|
|
self.addNode(self.outputNode, 'Output', [300, 0])
|
|
|
|
self.outputNode.sigOutputChanged.connect(self.outputChanged)
|
|
self.outputNode.sigTerminalRenamed.connect(self.internalTerminalRenamed)
|
|
self.inputNode.sigTerminalRenamed.connect(self.internalTerminalRenamed)
|
|
self.outputNode.sigTerminalRemoved.connect(self.internalTerminalRemoved)
|
|
self.inputNode.sigTerminalRemoved.connect(self.internalTerminalRemoved)
|
|
self.outputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
|
|
self.inputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
|
|
|
|
self.viewBox.autoRange(padding = 0.04)
|
|
|
|
for name, opts in terminals.iteritems():
|
|
self.addTerminal(name, **opts)
|
|
|
|
def setInput(self, **args):
|
|
#print "setInput", args
|
|
#Node.setInput(self, **args)
|
|
#print " ....."
|
|
self.inputWasSet = True
|
|
self.inputNode.setOutput(**args)
|
|
|
|
def outputChanged(self):
|
|
self.widget().outputChanged(self.outputNode.inputValues())
|
|
self.sigOutputChanged.emit(self)
|
|
|
|
def output(self):
|
|
return self.outputNode.inputValues()
|
|
|
|
def nodes(self):
|
|
return self._nodes
|
|
|
|
def addTerminal(self, name, **opts):
|
|
term = Node.addTerminal(self, name, **opts)
|
|
name = term.name()
|
|
if opts['io'] == 'in': ## inputs to the flowchart become outputs on the input node
|
|
opts['io'] = 'out'
|
|
opts['multi'] = False
|
|
self.inputNode.sigTerminalAdded.disconnect(self.internalTerminalAdded)
|
|
try:
|
|
term2 = self.inputNode.addTerminal(name, **opts)
|
|
finally:
|
|
self.inputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
|
|
|
|
else:
|
|
opts['io'] = 'in'
|
|
#opts['multi'] = False
|
|
self.outputNode.sigTerminalAdded.disconnect(self.internalTerminalAdded)
|
|
try:
|
|
term2 = self.outputNode.addTerminal(name, **opts)
|
|
finally:
|
|
self.outputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
|
|
return term
|
|
|
|
def removeTerminal(self, name):
|
|
#print "remove:", name
|
|
term = self[name]
|
|
inTerm = self.internalTerminal(term)
|
|
Node.removeTerminal(self, name)
|
|
inTerm.node().removeTerminal(inTerm.name())
|
|
|
|
def internalTerminalRenamed(self, term, oldName):
|
|
self[oldName].rename(term.name())
|
|
|
|
def internalTerminalAdded(self, node, term):
|
|
if term._io == 'in':
|
|
io = 'out'
|
|
else:
|
|
io = 'in'
|
|
Node.addTerminal(self, term.name(), io=io, renamable=term.isRenamable(), removable=term.isRemovable(), multiable=term.isMultiable())
|
|
|
|
def internalTerminalRemoved(self, node, term):
|
|
Node.removeTerminal(self, term.name())
|
|
|
|
def terminalRenamed(self, term, oldName):
|
|
newName = term.name()
|
|
#print "flowchart rename", newName, oldName
|
|
#print self.terminals
|
|
Node.terminalRenamed(self, self[oldName], oldName)
|
|
#print self.terminals
|
|
for n in [self.inputNode, self.outputNode]:
|
|
if oldName in n.terminals:
|
|
n[oldName].rename(newName)
|
|
|
|
def createNode(self, nodeType, name=None, pos=None):
|
|
if name is None:
|
|
n = 0
|
|
while True:
|
|
name = "%s.%d" % (nodeType, n)
|
|
if name not in self._nodes:
|
|
break
|
|
n += 1
|
|
|
|
node = library.getNodeType(nodeType)(name)
|
|
self.addNode(node, name, pos)
|
|
return node
|
|
|
|
def addNode(self, node, name, pos=None):
|
|
if pos is None:
|
|
pos = [0, 0]
|
|
if type(pos) in [QtCore.QPoint, QtCore.QPointF]:
|
|
pos = [pos.x(), pos.y()]
|
|
item = node.graphicsItem()
|
|
item.setZValue(self.nextZVal*2)
|
|
self.nextZVal += 1
|
|
#item.setParentItem(self.chartGraphicsItem())
|
|
self.viewBox.addItem(item)
|
|
#item.setPos(pos2.x(), pos2.y())
|
|
item.moveBy(*pos)
|
|
self._nodes[name] = node
|
|
self.widget().addNode(node)
|
|
#QtCore.QObject.connect(node, QtCore.SIGNAL('closed'), self.nodeClosed)
|
|
node.sigClosed.connect(self.nodeClosed)
|
|
#QtCore.QObject.connect(node, QtCore.SIGNAL('renamed'), self.nodeRenamed)
|
|
node.sigRenamed.connect(self.nodeRenamed)
|
|
#QtCore.QObject.connect(node, QtCore.SIGNAL('outputChanged'), self.nodeOutputChanged)
|
|
node.sigOutputChanged.connect(self.nodeOutputChanged)
|
|
|
|
def removeNode(self, node):
|
|
node.close()
|
|
|
|
def nodeClosed(self, node):
|
|
del self._nodes[node.name()]
|
|
self.widget().removeNode(node)
|
|
#QtCore.QObject.disconnect(node, QtCore.SIGNAL('closed'), self.nodeClosed)
|
|
try:
|
|
node.sigClosed.disconnect(self.nodeClosed)
|
|
except TypeError:
|
|
pass
|
|
#QtCore.QObject.disconnect(node, QtCore.SIGNAL('renamed'), self.nodeRenamed)
|
|
try:
|
|
node.sigRenamed.disconnect(self.nodeRenamed)
|
|
except TypeError:
|
|
pass
|
|
#QtCore.QObject.disconnect(node, QtCore.SIGNAL('outputChanged'), self.nodeOutputChanged)
|
|
try:
|
|
node.sigOutputChanged.disconnect(self.nodeOutputChanged)
|
|
except TypeError:
|
|
pass
|
|
|
|
def nodeRenamed(self, node, oldName):
|
|
del self._nodes[oldName]
|
|
self._nodes[node.name()] = node
|
|
self.widget().nodeRenamed(node, oldName)
|
|
|
|
def arrangeNodes(self):
|
|
pass
|
|
|
|
def internalTerminal(self, term):
|
|
"""If the terminal belongs to the external Node, return the corresponding internal terminal"""
|
|
if term.node() is self:
|
|
if term.isInput():
|
|
return self.inputNode[term.name()]
|
|
else:
|
|
return self.outputNode[term.name()]
|
|
else:
|
|
return term
|
|
|
|
def connectTerminals(self, term1, term2):
|
|
"""Connect two terminals together within this flowchart."""
|
|
term1 = self.internalTerminal(term1)
|
|
term2 = self.internalTerminal(term2)
|
|
term1.connectTo(term2)
|
|
|
|
|
|
def process(self, **args):
|
|
"""
|
|
Process data through the flowchart, returning the output.
|
|
Keyword arguments must be the names of input terminals
|
|
|
|
"""
|
|
data = {} ## Stores terminal:value pairs
|
|
|
|
## determine order of operations
|
|
## order should look like [('p', node1), ('p', node2), ('d', terminal1), ...]
|
|
## Each tuple specifies either (p)rocess this node or (d)elete the result from this terminal
|
|
order = self.processOrder()
|
|
#print "ORDER:", order
|
|
|
|
## Record inputs given to process()
|
|
for n, t in self.inputNode.outputs().iteritems():
|
|
if n not in args:
|
|
raise Exception("Parameter %s required to process this chart." % n)
|
|
data[t] = args[n]
|
|
|
|
ret = {}
|
|
|
|
## process all in order
|
|
for c, arg in order:
|
|
|
|
if c == 'p': ## Process a single node
|
|
#print "===> process:", arg
|
|
node = arg
|
|
if node is self.inputNode:
|
|
continue ## input node has already been processed.
|
|
|
|
|
|
## get input and output terminals for this node
|
|
outs = node.outputs().values()
|
|
ins = node.inputs().values()
|
|
|
|
## construct input value dictionary
|
|
args = {}
|
|
for inp in ins:
|
|
inputs = inp.inputTerminals()
|
|
if len(inputs) == 0:
|
|
continue
|
|
if inp.isMultiValue(): ## multi-input terminals require a dict of all inputs
|
|
args[inp.name()] = dict([(i, data[i]) for i in inputs])
|
|
else: ## single-inputs terminals only need the single input value available
|
|
args[inp.name()] = data[inputs[0]]
|
|
|
|
if node is self.outputNode:
|
|
ret = args ## we now have the return value, but must keep processing in case there are other endpoint nodes in the chart
|
|
else:
|
|
try:
|
|
if node.isBypassed():
|
|
result = node.processBypassed(args)
|
|
else:
|
|
result = node.process(display=False, **args)
|
|
except:
|
|
print "Error processing node %s. Args are: %s" % (str(node), str(args))
|
|
raise
|
|
for out in outs:
|
|
#print " Output:", out, out.name()
|
|
#print out.name()
|
|
try:
|
|
data[out] = result[out.name()]
|
|
except:
|
|
print out, out.name()
|
|
raise
|
|
elif c == 'd': ## delete a terminal result (no longer needed; may be holding a lot of memory)
|
|
#print "===> delete", arg
|
|
if arg in data:
|
|
del data[arg]
|
|
|
|
return ret
|
|
|
|
def processOrder(self):
|
|
"""Return the order of operations required to process this chart.
|
|
The order returned should look like [('p', node1), ('p', node2), ('d', terminal1), ...]
|
|
where each tuple specifies either (p)rocess this node or (d)elete the result from this terminal
|
|
"""
|
|
|
|
## first collect list of nodes/terminals and their dependencies
|
|
deps = {}
|
|
tdeps = {} ## {terminal: [nodes that depend on terminal]}
|
|
for name, node in self._nodes.iteritems():
|
|
deps[node] = node.dependentNodes()
|
|
for t in node.outputs().itervalues():
|
|
tdeps[t] = t.dependentNodes()
|
|
|
|
#print "DEPS:", deps
|
|
## determine correct node-processing order
|
|
#deps[self] = []
|
|
order = toposort(deps)
|
|
#print "ORDER1:", order
|
|
|
|
## construct list of operations
|
|
ops = [('p', n) for n in order]
|
|
|
|
## determine when it is safe to delete terminal values
|
|
dels = []
|
|
for t, nodes in tdeps.iteritems():
|
|
lastInd = 0
|
|
lastNode = None
|
|
for n in nodes: ## determine which node is the last to be processed according to order
|
|
if n is self:
|
|
lastInd = None
|
|
break
|
|
else:
|
|
try:
|
|
ind = order.index(n)
|
|
except ValueError:
|
|
continue
|
|
if lastNode is None or ind > lastInd:
|
|
lastNode = n
|
|
lastInd = ind
|
|
#tdeps[t] = lastNode
|
|
if lastInd is not None:
|
|
dels.append((lastInd+1, t))
|
|
dels.sort(lambda a,b: cmp(b[0], a[0]))
|
|
for i, t in dels:
|
|
ops.insert(i, ('d', t))
|
|
|
|
return ops
|
|
|
|
|
|
def nodeOutputChanged(self, startNode):
|
|
"""Triggered when a node's output values have changed. (NOT called during process())
|
|
Propagates new data forward through network."""
|
|
## first collect list of nodes/terminals and their dependencies
|
|
|
|
if self.processing:
|
|
return
|
|
self.processing = True
|
|
try:
|
|
deps = {}
|
|
for name, node in self._nodes.iteritems():
|
|
deps[node] = []
|
|
for t in node.outputs().itervalues():
|
|
deps[node].extend(t.dependentNodes())
|
|
|
|
## determine order of updates
|
|
order = toposort(deps, nodes=[startNode])
|
|
order.reverse()
|
|
|
|
## keep track of terminals that have been updated
|
|
terms = set(startNode.outputs().values())
|
|
|
|
#print "======= Updating", startNode
|
|
#print "Order:", order
|
|
for node in order[1:]:
|
|
#print "Processing node", node
|
|
for term in node.inputs().values():
|
|
#print " checking terminal", term
|
|
deps = term.connections().keys()
|
|
update = False
|
|
for d in deps:
|
|
if d in terms:
|
|
#print " ..input", d, "changed"
|
|
update = True
|
|
term.inputChanged(d, process=False)
|
|
if update:
|
|
#print " processing.."
|
|
node.update()
|
|
terms |= set(node.outputs().values())
|
|
|
|
finally:
|
|
self.processing = False
|
|
if self.inputWasSet:
|
|
self.inputWasSet = False
|
|
else:
|
|
self.sigStateChanged.emit()
|
|
|
|
|
|
|
|
def chartGraphicsItem(self):
|
|
"""Return the graphicsItem which displays the internals of this flowchart.
|
|
(graphicsItem() still returns the external-view item)"""
|
|
#return self._chartGraphicsItem
|
|
return self.viewBox
|
|
|
|
def widget(self):
|
|
if self._widget is None:
|
|
self._widget = FlowchartCtrlWidget(self)
|
|
self.scene = self._widget.scene()
|
|
self.viewBox = self._widget.viewBox()
|
|
#self._scene = QtGui.QGraphicsScene()
|
|
#self._widget.setScene(self._scene)
|
|
#self.scene.addItem(self.chartGraphicsItem())
|
|
|
|
#ci = self.chartGraphicsItem()
|
|
#self.viewBox.addItem(ci)
|
|
#self.viewBox.autoRange()
|
|
return self._widget
|
|
|
|
def listConnections(self):
|
|
conn = set()
|
|
for n in self._nodes.itervalues():
|
|
terms = n.outputs()
|
|
for n, t in terms.iteritems():
|
|
for c in t.connections():
|
|
conn.add((t, c))
|
|
return conn
|
|
|
|
def saveState(self):
|
|
state = Node.saveState(self)
|
|
state['nodes'] = []
|
|
state['connects'] = []
|
|
state['terminals'] = self.saveTerminals()
|
|
|
|
for name, node in self._nodes.iteritems():
|
|
cls = type(node)
|
|
if hasattr(cls, 'nodeName'):
|
|
clsName = cls.nodeName
|
|
pos = node.graphicsItem().pos()
|
|
ns = {'class': clsName, 'name': name, 'pos': (pos.x(), pos.y()), 'state': node.saveState()}
|
|
state['nodes'].append(ns)
|
|
|
|
conn = self.listConnections()
|
|
for a, b in conn:
|
|
state['connects'].append((a.node().name(), a.name(), b.node().name(), b.name()))
|
|
|
|
state['inputNode'] = self.inputNode.saveState()
|
|
state['outputNode'] = self.outputNode.saveState()
|
|
|
|
return state
|
|
|
|
def restoreState(self, state, clear=False):
|
|
self.blockSignals(True)
|
|
try:
|
|
if clear:
|
|
self.clear()
|
|
Node.restoreState(self, state)
|
|
nodes = state['nodes']
|
|
nodes.sort(lambda a, b: cmp(a['pos'][0], b['pos'][0]))
|
|
for n in nodes:
|
|
if n['name'] in self._nodes:
|
|
self._nodes[n['name']].moveBy(*n['pos'])
|
|
continue
|
|
try:
|
|
node = self.createNode(n['class'], name=n['name'])
|
|
node.restoreState(n['state'])
|
|
except:
|
|
printExc("Error creating node %s: (continuing anyway)" % n['name'])
|
|
#node.graphicsItem().moveBy(*n['pos'])
|
|
|
|
self.inputNode.restoreState(state.get('inputNode', {}))
|
|
self.outputNode.restoreState(state.get('outputNode', {}))
|
|
|
|
self.restoreTerminals(state['terminals'])
|
|
for n1, t1, n2, t2 in state['connects']:
|
|
try:
|
|
self.connectTerminals(self._nodes[n1][t1], self._nodes[n2][t2])
|
|
except:
|
|
print self._nodes[n1].terminals
|
|
print self._nodes[n2].terminals
|
|
printExc("Error connecting terminals %s.%s - %s.%s:" % (n1, t1, n2, t2))
|
|
|
|
|
|
finally:
|
|
self.blockSignals(False)
|
|
|
|
self.sigChartLoaded.emit()
|
|
self.outputChanged()
|
|
#self.sigOutputChanged.emit()
|
|
|
|
def loadFile(self, fileName=None, startDir=None):
|
|
if fileName is None:
|
|
if startDir is None:
|
|
startDir = self.filePath
|
|
if startDir is None:
|
|
startDir = '.'
|
|
self.fileDialog = pg.FileDialog(None, "Load Flowchart..", startDir, "Flowchart (*.fc)")
|
|
#self.fileDialog.setFileMode(QtGui.QFileDialog.AnyFile)
|
|
#self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
|
|
self.fileDialog.show()
|
|
self.fileDialog.fileSelected.connect(self.loadFile)
|
|
return
|
|
## NOTE: was previously using a real widget for the file dialog's parent, but this caused weird mouse event bugs..
|
|
#fileName = QtGui.QFileDialog.getOpenFileName(None, "Load Flowchart..", startDir, "Flowchart (*.fc)")
|
|
fileName = str(fileName)
|
|
state = configfile.readConfigFile(fileName)
|
|
self.restoreState(state, clear=True)
|
|
self.viewBox.autoRange()
|
|
#self.emit(QtCore.SIGNAL('fileLoaded'), fileName)
|
|
self.sigFileLoaded.emit(fileName)
|
|
|
|
def saveFile(self, fileName=None, startDir=None, suggestedFileName='flowchart.fc'):
|
|
if fileName is None:
|
|
if startDir is None:
|
|
startDir = self.filePath
|
|
if startDir is None:
|
|
startDir = '.'
|
|
self.fileDialog = pg.FileDialog(None, "Save Flowchart..", startDir, "Flowchart (*.fc)")
|
|
#self.fileDialog.setFileMode(QtGui.QFileDialog.AnyFile)
|
|
self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
|
|
#self.fileDialog.setDirectory(startDir)
|
|
self.fileDialog.show()
|
|
self.fileDialog.fileSelected.connect(self.saveFile)
|
|
return
|
|
#fileName = QtGui.QFileDialog.getSaveFileName(None, "Save Flowchart..", startDir, "Flowchart (*.fc)")
|
|
configfile.writeConfigFile(self.saveState(), fileName)
|
|
self.sigFileSaved.emit(fileName)
|
|
|
|
def clear(self):
|
|
for n in self._nodes.values():
|
|
if n is self.inputNode or n is self.outputNode:
|
|
continue
|
|
n.close() ## calls self.nodeClosed(n) by signal
|
|
#self.clearTerminals()
|
|
self.widget().clear()
|
|
|
|
def clearTerminals(self):
|
|
Node.clearTerminals(self)
|
|
self.inputNode.clearTerminals()
|
|
self.outputNode.clearTerminals()
|
|
|
|
#class FlowchartGraphicsItem(QtGui.QGraphicsItem):
|
|
class FlowchartGraphicsItem(GraphicsObject):
|
|
|
|
def __init__(self, chart):
|
|
#print "FlowchartGraphicsItem.__init__"
|
|
#QtGui.QGraphicsItem.__init__(self)
|
|
GraphicsObject.__init__(self)
|
|
self.chart = chart ## chart is an instance of Flowchart()
|
|
self.updateTerminals()
|
|
|
|
def updateTerminals(self):
|
|
#print "FlowchartGraphicsItem.updateTerminals"
|
|
self.terminals = {}
|
|
bounds = self.boundingRect()
|
|
inp = self.chart.inputs()
|
|
dy = bounds.height() / (len(inp)+1)
|
|
y = dy
|
|
for n, t in inp.iteritems():
|
|
item = t.graphicsItem()
|
|
self.terminals[n] = item
|
|
item.setParentItem(self)
|
|
item.setAnchor(bounds.width(), y)
|
|
y += dy
|
|
out = self.chart.outputs()
|
|
dy = bounds.height() / (len(out)+1)
|
|
y = dy
|
|
for n, t in out.iteritems():
|
|
item = t.graphicsItem()
|
|
self.terminals[n] = item
|
|
item.setParentItem(self)
|
|
item.setAnchor(0, y)
|
|
y += dy
|
|
|
|
def boundingRect(self):
|
|
#print "FlowchartGraphicsItem.boundingRect"
|
|
return QtCore.QRectF()
|
|
|
|
def paint(self, p, *args):
|
|
#print "FlowchartGraphicsItem.paint"
|
|
pass
|
|
#p.drawRect(self.boundingRect())
|
|
|
|
|
|
class FlowchartCtrlWidget(QtGui.QWidget):
|
|
"""The widget that contains the list of all the nodes in a flowchart and their controls, as well as buttons for loading/saving flowcharts."""
|
|
|
|
def __init__(self, chart):
|
|
self.items = {}
|
|
#self.loadDir = loadDir ## where to look initially for chart files
|
|
self.currentFileName = None
|
|
QtGui.QWidget.__init__(self)
|
|
self.chart = chart
|
|
self.ui = FlowchartCtrlTemplate.Ui_Form()
|
|
self.ui.setupUi(self)
|
|
self.ui.ctrlList.setColumnCount(2)
|
|
#self.ui.ctrlList.setColumnWidth(0, 200)
|
|
self.ui.ctrlList.setColumnWidth(1, 20)
|
|
self.ui.ctrlList.setVerticalScrollMode(self.ui.ctrlList.ScrollPerPixel)
|
|
self.ui.ctrlList.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
|
|
|
|
self.chartWidget = FlowchartWidget(chart, self)
|
|
#self.chartWidget.viewBox().autoRange()
|
|
self.cwWin = QtGui.QMainWindow()
|
|
self.cwWin.setWindowTitle('Flowchart')
|
|
self.cwWin.setCentralWidget(self.chartWidget)
|
|
self.cwWin.resize(1000,800)
|
|
|
|
h = self.ui.ctrlList.header()
|
|
h.setResizeMode(0, h.Stretch)
|
|
|
|
self.ui.ctrlList.itemChanged.connect(self.itemChanged)
|
|
self.ui.loadBtn.clicked.connect(self.loadClicked)
|
|
self.ui.saveBtn.clicked.connect(self.saveClicked)
|
|
self.ui.saveAsBtn.clicked.connect(self.saveAsClicked)
|
|
self.ui.showChartBtn.toggled.connect(self.chartToggled)
|
|
self.chart.sigFileLoaded.connect(self.setCurrentFile)
|
|
self.ui.reloadBtn.clicked.connect(self.reloadClicked)
|
|
self.chart.sigFileSaved.connect(self.fileSaved)
|
|
|
|
|
|
|
|
#def resizeEvent(self, ev):
|
|
#QtGui.QWidget.resizeEvent(self, ev)
|
|
#self.ui.ctrlList.setColumnWidth(0, self.ui.ctrlList.viewport().width()-20)
|
|
|
|
def chartToggled(self, b):
|
|
if b:
|
|
self.cwWin.show()
|
|
else:
|
|
self.cwWin.hide()
|
|
|
|
def reloadClicked(self):
|
|
try:
|
|
self.chartWidget.reloadLibrary()
|
|
self.ui.reloadBtn.success("Reloaded.")
|
|
except:
|
|
self.ui.reloadBtn.success("Error.")
|
|
raise
|
|
|
|
|
|
def loadClicked(self):
|
|
newFile = self.chart.loadFile()
|
|
#self.setCurrentFile(newFile)
|
|
|
|
def fileSaved(self, fileName):
|
|
self.setCurrentFile(fileName)
|
|
self.ui.saveBtn.success("Saved.")
|
|
|
|
def saveClicked(self):
|
|
if self.currentFileName is None:
|
|
self.saveAsClicked()
|
|
else:
|
|
try:
|
|
self.chart.saveFile(self.currentFileName)
|
|
#self.ui.saveBtn.success("Saved.")
|
|
except:
|
|
self.ui.saveBtn.failure("Error")
|
|
raise
|
|
|
|
def saveAsClicked(self):
|
|
try:
|
|
if self.currentFileName is None:
|
|
newFile = self.chart.saveFile()
|
|
else:
|
|
newFile = self.chart.saveFile(suggestedFileName=self.currentFileName)
|
|
#self.ui.saveAsBtn.success("Saved.")
|
|
#print "Back to saveAsClicked."
|
|
except:
|
|
self.ui.saveBtn.failure("Error")
|
|
raise
|
|
|
|
#self.setCurrentFile(newFile)
|
|
|
|
def setCurrentFile(self, fileName):
|
|
self.currentFileName = fileName
|
|
if fileName is None:
|
|
self.ui.fileNameLabel.setText("<b>[ new ]</b>")
|
|
else:
|
|
self.ui.fileNameLabel.setText("<b>%s</b>" % os.path.split(self.currentFileName)[1])
|
|
self.resizeEvent(None)
|
|
|
|
def itemChanged(self, *args):
|
|
pass
|
|
|
|
def scene(self):
|
|
return self.chartWidget.scene() ## returns the GraphicsScene object
|
|
|
|
def viewBox(self):
|
|
return self.chartWidget.viewBox()
|
|
|
|
def nodeRenamed(self, node, oldName):
|
|
self.items[node].setText(0, node.name())
|
|
|
|
def addNode(self, node):
|
|
ctrl = node.ctrlWidget()
|
|
#if ctrl is None:
|
|
#return
|
|
item = QtGui.QTreeWidgetItem([node.name(), '', ''])
|
|
self.ui.ctrlList.addTopLevelItem(item)
|
|
byp = QtGui.QPushButton('X')
|
|
byp.setCheckable(True)
|
|
byp.setFixedWidth(20)
|
|
item.bypassBtn = byp
|
|
self.ui.ctrlList.setItemWidget(item, 1, byp)
|
|
byp.node = node
|
|
node.bypassButton = byp
|
|
byp.setChecked(node.isBypassed())
|
|
byp.clicked.connect(self.bypassClicked)
|
|
|
|
if ctrl is not None:
|
|
item2 = QtGui.QTreeWidgetItem()
|
|
item.addChild(item2)
|
|
self.ui.ctrlList.setItemWidget(item2, 0, ctrl)
|
|
|
|
self.items[node] = item
|
|
|
|
def removeNode(self, node):
|
|
if node in self.items:
|
|
item = self.items[node]
|
|
#self.disconnect(item.bypassBtn, QtCore.SIGNAL('clicked()'), self.bypassClicked)
|
|
try:
|
|
item.bypassBtn.clicked.disconnect(self.bypassClicked)
|
|
except TypeError:
|
|
pass
|
|
self.ui.ctrlList.removeTopLevelItem(item)
|
|
|
|
def bypassClicked(self):
|
|
btn = QtCore.QObject.sender(self)
|
|
btn.node.bypass(btn.isChecked())
|
|
|
|
def chartWidget(self):
|
|
return self.chartWidget
|
|
|
|
def outputChanged(self, data):
|
|
pass
|
|
#self.ui.outputTree.setData(data, hideRoot=True)
|
|
|
|
def clear(self):
|
|
self.chartWidget.clear()
|
|
|
|
def select(self, node):
|
|
item = self.items[node]
|
|
self.ui.ctrlList.setCurrentItem(item)
|
|
|
|
class FlowchartWidget(dockarea.DockArea):
|
|
"""Includes the actual graphical flowchart and debugging interface"""
|
|
def __init__(self, chart, ctrl):
|
|
#QtGui.QWidget.__init__(self)
|
|
dockarea.DockArea.__init__(self)
|
|
self.chart = chart
|
|
self.ctrl = ctrl
|
|
self.hoverItem = None
|
|
#self.setMinimumWidth(250)
|
|
#self.setSizePolicy(QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Expanding))
|
|
|
|
#self.ui = FlowchartTemplate.Ui_Form()
|
|
#self.ui.setupUi(self)
|
|
|
|
## build user interface (it was easier to do it here than via developer)
|
|
self.view = FlowchartGraphicsView.FlowchartGraphicsView(self)
|
|
self.viewDock = dockarea.Dock('view', size=(1000,600))
|
|
self.viewDock.addWidget(self.view)
|
|
self.viewDock.hideTitleBar()
|
|
self.addDock(self.viewDock)
|
|
|
|
|
|
self.hoverText = QtGui.QTextEdit()
|
|
self.hoverText.setReadOnly(True)
|
|
self.hoverDock = dockarea.Dock('Hover Info', size=(1000,20))
|
|
self.hoverDock.addWidget(self.hoverText)
|
|
self.addDock(self.hoverDock, 'bottom')
|
|
|
|
self.selInfo = QtGui.QWidget()
|
|
self.selInfoLayout = QtGui.QGridLayout()
|
|
self.selInfo.setLayout(self.selInfoLayout)
|
|
self.selDescLabel = QtGui.QLabel()
|
|
self.selNameLabel = QtGui.QLabel()
|
|
self.selDescLabel.setWordWrap(True)
|
|
self.selectedTree = pg.DataTreeWidget()
|
|
#self.selectedTree.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
|
|
#self.selInfoLayout.addWidget(self.selNameLabel)
|
|
self.selInfoLayout.addWidget(self.selDescLabel)
|
|
self.selInfoLayout.addWidget(self.selectedTree)
|
|
self.selDock = dockarea.Dock('Selected Node', size=(1000,200))
|
|
self.selDock.addWidget(self.selInfo)
|
|
self.addDock(self.selDock, 'bottom')
|
|
|
|
self._scene = self.view.scene()
|
|
self._viewBox = self.view.viewBox()
|
|
#self._scene = QtGui.QGraphicsScene()
|
|
#self._scene = FlowchartGraphicsView.FlowchartGraphicsScene()
|
|
#self.view.setScene(self._scene)
|
|
|
|
self.buildMenu()
|
|
#self.ui.addNodeBtn.mouseReleaseEvent = self.addNodeBtnReleased
|
|
|
|
self._scene.selectionChanged.connect(self.selectionChanged)
|
|
self._scene.sigMouseHover.connect(self.hoverOver)
|
|
#self.view.sigClicked.connect(self.showViewMenu)
|
|
#self._scene.sigSceneContextMenu.connect(self.showViewMenu)
|
|
#self._viewBox.sigActionPositionChanged.connect(self.menuPosChanged)
|
|
|
|
|
|
def reloadLibrary(self):
|
|
#QtCore.QObject.disconnect(self.nodeMenu, QtCore.SIGNAL('triggered(QAction*)'), self.nodeMenuTriggered)
|
|
self.nodeMenu.triggered.disconnect(self.nodeMenuTriggered)
|
|
self.nodeMenu = None
|
|
self.subMenus = []
|
|
library.loadLibrary(reloadLibs=True)
|
|
self.buildMenu()
|
|
|
|
def buildMenu(self, pos=None):
|
|
self.nodeMenu = QtGui.QMenu()
|
|
self.subMenus = []
|
|
for section, nodes in library.getNodeTree().iteritems():
|
|
menu = QtGui.QMenu(section)
|
|
self.nodeMenu.addMenu(menu)
|
|
for name in nodes:
|
|
act = menu.addAction(name)
|
|
act.nodeType = name
|
|
act.pos = pos
|
|
self.subMenus.append(menu)
|
|
self.nodeMenu.triggered.connect(self.nodeMenuTriggered)
|
|
return self.nodeMenu
|
|
|
|
def menuPosChanged(self, pos):
|
|
self.menuPos = pos
|
|
|
|
def showViewMenu(self, ev):
|
|
#QtGui.QPushButton.mouseReleaseEvent(self.ui.addNodeBtn, ev)
|
|
#if ev.button() == QtCore.Qt.RightButton:
|
|
#self.menuPos = self.view.mapToScene(ev.pos())
|
|
#self.nodeMenu.popup(ev.globalPos())
|
|
#print "Flowchart.showViewMenu called"
|
|
|
|
#self.menuPos = ev.scenePos()
|
|
self.buildMenu(ev.scenePos())
|
|
self.nodeMenu.popup(ev.screenPos())
|
|
|
|
def scene(self):
|
|
return self._scene ## the GraphicsScene item
|
|
|
|
def viewBox(self):
|
|
return self._viewBox ## the viewBox that items should be added to
|
|
|
|
def nodeMenuTriggered(self, action):
|
|
nodeType = action.nodeType
|
|
if action.pos is not None:
|
|
pos = action.pos
|
|
else:
|
|
pos = self.menuPos
|
|
pos = self.viewBox().mapSceneToView(pos)
|
|
|
|
self.chart.createNode(nodeType, pos=pos)
|
|
|
|
|
|
def selectionChanged(self):
|
|
#print "FlowchartWidget.selectionChanged called."
|
|
items = self._scene.selectedItems()
|
|
#print " scene.selectedItems: ", items
|
|
if len(items) == 0:
|
|
data = None
|
|
else:
|
|
item = items[0]
|
|
if hasattr(item, 'node') and isinstance(item.node, Node):
|
|
n = item.node
|
|
self.ctrl.select(n)
|
|
data = {'outputs': n.outputValues(), 'inputs': n.inputValues()}
|
|
self.selNameLabel.setText(n.name())
|
|
if hasattr(n, 'nodeName'):
|
|
self.selDescLabel.setText("<b>%s</b>: %s" % (n.nodeName, n.__class__.__doc__))
|
|
else:
|
|
self.selDescLabel.setText("")
|
|
if n.exception is not None:
|
|
data['exception'] = n.exception
|
|
else:
|
|
data = None
|
|
self.selectedTree.setData(data, hideRoot=True)
|
|
|
|
def hoverOver(self, items):
|
|
#print "FlowchartWidget.hoverOver called."
|
|
term = None
|
|
for item in items:
|
|
if item is self.hoverItem:
|
|
return
|
|
self.hoverItem = item
|
|
if hasattr(item, 'term') and isinstance(item.term, Terminal):
|
|
term = item.term
|
|
break
|
|
if term is None:
|
|
self.hoverText.setPlainText("")
|
|
else:
|
|
val = term.value()
|
|
if isinstance(val, ndarray):
|
|
val = "%s %s %s" % (type(val).__name__, str(val.shape), str(val.dtype))
|
|
else:
|
|
val = str(val)
|
|
if len(val) > 400:
|
|
val = val[:400] + "..."
|
|
self.hoverText.setPlainText("%s.%s = %s" % (term.node().name(), term.name(), val))
|
|
#self.hoverLabel.setCursorPosition(0)
|
|
|
|
|
|
|
|
def clear(self):
|
|
#self.outputTree.setData(None)
|
|
self.selectedTree.setData(None)
|
|
self.hoverText.setPlainText('')
|
|
self.selNameLabel.setText('')
|
|
self.selDescLabel.setText('')
|
|
|
|
|
|
class FlowchartNode(Node):
|
|
pass
|
|
|