933 lines
34 KiB
Python
933 lines
34 KiB
Python
# -*- coding: utf-8 -*-
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from ..Qt import QtCore, QtGui, QT_LIB
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from .Node import *
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from collections import OrderedDict
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from ..widgets.TreeWidget import *
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from .. import FileDialog, DataTreeWidget
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import importlib
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FlowchartCtrlTemplate = importlib.import_module(
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f'.FlowchartCtrlTemplate_{QT_LIB.lower()}', package=__package__)
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from .Terminal import Terminal
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from numpy import ndarray
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from .library import LIBRARY
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from ..debug import printExc
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from .. import configfile as configfile
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from .. import dockarea as dockarea
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from . import FlowchartGraphicsView
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from .. import functions as fn
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def strDict(d):
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return dict([(str(k), v) for k, v in d.items()])
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class Flowchart(Node):
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sigFileLoaded = QtCore.Signal(object)
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sigFileSaved = QtCore.Signal(object)
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#sigOutputChanged = QtCore.Signal() ## inherited from Node
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sigChartLoaded = QtCore.Signal()
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sigStateChanged = QtCore.Signal() # called when output is expected to have changed
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sigChartChanged = QtCore.Signal(object, object, object) # called when nodes are added, removed, or renamed.
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# (self, action, node)
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def __init__(self, terminals=None, name=None, filePath=None, library=None):
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self.library = library or LIBRARY
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if name is None:
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name = "Flowchart"
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if terminals is None:
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terminals = {}
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self.filePath = filePath
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Node.__init__(self, name, allowAddInput=True, allowAddOutput=True) ## create node without terminals; we'll add these later
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self.inputWasSet = False ## flag allows detection of changes in the absence of input change.
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self._nodes = {}
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self.nextZVal = 10
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#self.connects = []
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#self._chartGraphicsItem = FlowchartGraphicsItem(self)
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self._widget = None
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self._scene = None
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self.processing = False ## flag that prevents recursive node updates
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self.widget()
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self.inputNode = Node('Input', allowRemove=False, allowAddOutput=True)
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self.outputNode = Node('Output', allowRemove=False, allowAddInput=True)
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self.addNode(self.inputNode, 'Input', [-150, 0])
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self.addNode(self.outputNode, 'Output', [300, 0])
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self.outputNode.sigOutputChanged.connect(self.outputChanged)
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self.outputNode.sigTerminalRenamed.connect(self.internalTerminalRenamed)
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self.inputNode.sigTerminalRenamed.connect(self.internalTerminalRenamed)
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self.outputNode.sigTerminalRemoved.connect(self.internalTerminalRemoved)
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self.inputNode.sigTerminalRemoved.connect(self.internalTerminalRemoved)
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self.outputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
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self.inputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
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self.viewBox.autoRange(padding = 0.04)
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for name, opts in terminals.items():
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self.addTerminal(name, **opts)
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def setLibrary(self, lib):
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self.library = lib
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self.widget().chartWidget.buildMenu()
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def setInput(self, **args):
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"""Set the input values of the flowchart. This will automatically propagate
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the new values throughout the flowchart, (possibly) causing the output to change.
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"""
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#print "setInput", args
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#Node.setInput(self, **args)
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#print " ....."
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self.inputWasSet = True
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self.inputNode.setOutput(**args)
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def outputChanged(self):
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## called when output of internal node has changed
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vals = self.outputNode.inputValues()
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self.widget().outputChanged(vals)
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self.setOutput(**vals)
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#self.sigOutputChanged.emit(self)
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def output(self):
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"""Return a dict of the values on the Flowchart's output terminals.
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"""
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return self.outputNode.inputValues()
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def nodes(self):
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return self._nodes
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def addTerminal(self, name, **opts):
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term = Node.addTerminal(self, name, **opts)
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name = term.name()
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if opts['io'] == 'in': ## inputs to the flowchart become outputs on the input node
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opts['io'] = 'out'
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opts['multi'] = False
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self.inputNode.sigTerminalAdded.disconnect(self.internalTerminalAdded)
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try:
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term2 = self.inputNode.addTerminal(name, **opts)
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finally:
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self.inputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
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else:
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opts['io'] = 'in'
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#opts['multi'] = False
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self.outputNode.sigTerminalAdded.disconnect(self.internalTerminalAdded)
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try:
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term2 = self.outputNode.addTerminal(name, **opts)
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finally:
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self.outputNode.sigTerminalAdded.connect(self.internalTerminalAdded)
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return term
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def removeTerminal(self, name):
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#print "remove:", name
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term = self[name]
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inTerm = self.internalTerminal(term)
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Node.removeTerminal(self, name)
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inTerm.node().removeTerminal(inTerm.name())
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def internalTerminalRenamed(self, term, oldName):
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self[oldName].rename(term.name())
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def internalTerminalAdded(self, node, term):
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if term._io == 'in':
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io = 'out'
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else:
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io = 'in'
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Node.addTerminal(self, term.name(), io=io, renamable=term.isRenamable(), removable=term.isRemovable(), multiable=term.isMultiable())
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def internalTerminalRemoved(self, node, term):
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try:
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Node.removeTerminal(self, term.name())
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except KeyError:
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pass
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def terminalRenamed(self, term, oldName):
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newName = term.name()
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#print "flowchart rename", newName, oldName
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#print self.terminals
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Node.terminalRenamed(self, self[oldName], oldName)
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#print self.terminals
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for n in [self.inputNode, self.outputNode]:
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if oldName in n.terminals:
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n[oldName].rename(newName)
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def createNode(self, nodeType, name=None, pos=None):
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"""Create a new Node and add it to this flowchart.
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"""
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if name is None:
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n = 0
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while True:
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name = "%s.%d" % (nodeType, n)
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if name not in self._nodes:
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break
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n += 1
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node = self.library.getNodeType(nodeType)(name)
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self.addNode(node, name, pos)
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return node
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def addNode(self, node, name, pos=None):
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"""Add an existing Node to this flowchart.
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See also: createNode()
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"""
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if pos is None:
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pos = [0, 0]
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if type(pos) in [QtCore.QPoint, QtCore.QPointF]:
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pos = [pos.x(), pos.y()]
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item = node.graphicsItem()
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item.setZValue(self.nextZVal*2)
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self.nextZVal += 1
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self.viewBox.addItem(item)
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item.moveBy(*pos)
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self._nodes[name] = node
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if node is not self.inputNode and node is not self.outputNode:
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self.widget().addNode(node)
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node.sigClosed.connect(self.nodeClosed)
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node.sigRenamed.connect(self.nodeRenamed)
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node.sigOutputChanged.connect(self.nodeOutputChanged)
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self.sigChartChanged.emit(self, 'add', node)
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def removeNode(self, node):
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"""Remove a Node from this flowchart.
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"""
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node.close()
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def nodeClosed(self, node):
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del self._nodes[node.name()]
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self.widget().removeNode(node)
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for signal, slot in [('sigClosed', self.nodeClosed),
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('sigRenamed', self.nodeRenamed),
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('sigOutputChanged', self.nodeOutputChanged)]:
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try:
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getattr(node, signal).disconnect(slot)
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except (TypeError, RuntimeError):
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pass
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self.sigChartChanged.emit(self, 'remove', node)
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def nodeRenamed(self, node, oldName):
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del self._nodes[oldName]
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self._nodes[node.name()] = node
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self.widget().nodeRenamed(node, oldName)
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self.sigChartChanged.emit(self, 'rename', node)
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def arrangeNodes(self):
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pass
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def internalTerminal(self, term):
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"""If the terminal belongs to the external Node, return the corresponding internal terminal"""
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if term.node() is self:
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if term.isInput():
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return self.inputNode[term.name()]
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else:
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return self.outputNode[term.name()]
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else:
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return term
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def connectTerminals(self, term1, term2):
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"""Connect two terminals together within this flowchart."""
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term1 = self.internalTerminal(term1)
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term2 = self.internalTerminal(term2)
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term1.connectTo(term2)
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def process(self, **args):
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"""
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Process data through the flowchart, returning the output.
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Keyword arguments must be the names of input terminals.
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The return value is a dict with one key per output terminal.
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"""
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data = {} ## Stores terminal:value pairs
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## determine order of operations
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## order should look like [('p', node1), ('p', node2), ('d', terminal1), ...]
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## Each tuple specifies either (p)rocess this node or (d)elete the result from this terminal
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order = self.processOrder()
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#print "ORDER:", order
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## Record inputs given to process()
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for n, t in self.inputNode.outputs().items():
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# if n not in args:
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# raise Exception("Parameter %s required to process this chart." % n)
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if n in args:
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data[t] = args[n]
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ret = {}
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## process all in order
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for c, arg in order:
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if c == 'p': ## Process a single node
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#print "===> process:", arg
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node = arg
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if node is self.inputNode:
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continue ## input node has already been processed.
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## get input and output terminals for this node
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outs = list(node.outputs().values())
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ins = list(node.inputs().values())
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## construct input value dictionary
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args = {}
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for inp in ins:
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inputs = inp.inputTerminals()
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if len(inputs) == 0:
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continue
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if inp.isMultiValue(): ## multi-input terminals require a dict of all inputs
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args[inp.name()] = dict([(i, data[i]) for i in inputs if i in data])
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else: ## single-inputs terminals only need the single input value available
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args[inp.name()] = data[inputs[0]]
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if node is self.outputNode:
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ret = args ## we now have the return value, but must keep processing in case there are other endpoint nodes in the chart
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else:
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try:
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if node.isBypassed():
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result = node.processBypassed(args)
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else:
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result = node.process(display=False, **args)
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except:
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print("Error processing node %s. Args are: %s" % (str(node), str(args)))
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raise
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for out in outs:
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#print " Output:", out, out.name()
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#print out.name()
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try:
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data[out] = result[out.name()]
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except KeyError:
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pass
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elif c == 'd': ## delete a terminal result (no longer needed; may be holding a lot of memory)
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#print "===> delete", arg
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if arg in data:
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del data[arg]
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return ret
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def processOrder(self):
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"""Return the order of operations required to process this chart.
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The order returned should look like [('p', node1), ('p', node2), ('d', terminal1), ...]
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where each tuple specifies either (p)rocess this node or (d)elete the result from this terminal
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"""
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## first collect list of nodes/terminals and their dependencies
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deps = {}
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tdeps = {} ## {terminal: [nodes that depend on terminal]}
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for name, node in self._nodes.items():
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deps[node] = node.dependentNodes()
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for t in node.outputs().values():
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tdeps[t] = t.dependentNodes()
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#print "DEPS:", deps
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## determine correct node-processing order
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order = fn.toposort(deps)
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#print "ORDER1:", order
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## construct list of operations
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ops = [('p', n) for n in order]
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## determine when it is safe to delete terminal values
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dels = []
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for t, nodes in tdeps.items():
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lastInd = 0
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lastNode = None
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for n in nodes: ## determine which node is the last to be processed according to order
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if n is self:
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lastInd = None
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break
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else:
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try:
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ind = order.index(n)
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except ValueError:
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continue
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if lastNode is None or ind > lastInd:
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lastNode = n
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lastInd = ind
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if lastInd is not None:
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dels.append((lastInd+1, t))
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dels.sort(key=lambda a: a[0], reverse=True)
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for i, t in dels:
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ops.insert(i, ('d', t))
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return ops
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def nodeOutputChanged(self, startNode):
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"""Triggered when a node's output values have changed. (NOT called during process())
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Propagates new data forward through network."""
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## first collect list of nodes/terminals and their dependencies
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if self.processing:
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return
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self.processing = True
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try:
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deps = {}
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for name, node in self._nodes.items():
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deps[node] = []
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for t in node.outputs().values():
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deps[node].extend(t.dependentNodes())
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## determine order of updates
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order = fn.toposort(deps, nodes=[startNode])
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order.reverse()
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## keep track of terminals that have been updated
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terms = set(startNode.outputs().values())
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#print "======= Updating", startNode
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# print("Order:", order)
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for node in order[1:]:
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# print("Processing node", node)
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update = False
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for term in list(node.inputs().values()):
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# print(" checking terminal", term)
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deps = list(term.connections().keys())
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for d in deps:
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if d in terms:
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# print(" ..input", d, "changed")
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update |= True
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term.inputChanged(d, process=False)
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if update:
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# print(" processing..")
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node.update()
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terms |= set(node.outputs().values())
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finally:
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self.processing = False
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if self.inputWasSet:
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self.inputWasSet = False
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else:
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self.sigStateChanged.emit()
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def chartGraphicsItem(self):
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"""Return the graphicsItem that displays the internal nodes and
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connections of this flowchart.
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Note that the similar method `graphicsItem()` is inherited from Node
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and returns the *external* graphical representation of this flowchart."""
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return self.viewBox
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def widget(self):
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"""Return the control widget for this flowchart.
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This widget provides GUI access to the parameters for each node and a
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graphical representation of the flowchart.
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"""
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if self._widget is None:
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self._widget = FlowchartCtrlWidget(self)
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self.scene = self._widget.scene()
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self.viewBox = self._widget.viewBox()
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return self._widget
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def listConnections(self):
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conn = set()
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for n in self._nodes.values():
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terms = n.outputs()
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for n, t in terms.items():
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for c in t.connections():
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conn.add((t, c))
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return conn
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def saveState(self):
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"""Return a serializable data structure representing the current state of this flowchart.
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"""
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state = Node.saveState(self)
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state['nodes'] = []
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state['connects'] = []
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for name, node in self._nodes.items():
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cls = type(node)
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if hasattr(cls, 'nodeName'):
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clsName = cls.nodeName
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pos = node.graphicsItem().pos()
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ns = {'class': clsName, 'name': name, 'pos': (pos.x(), pos.y()), 'state': node.saveState()}
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state['nodes'].append(ns)
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conn = self.listConnections()
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for a, b in conn:
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state['connects'].append((a.node().name(), a.name(), b.node().name(), b.name()))
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state['inputNode'] = self.inputNode.saveState()
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state['outputNode'] = self.outputNode.saveState()
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return state
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def restoreState(self, state, clear=False):
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"""Restore the state of this flowchart from a previous call to `saveState()`.
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"""
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self.blockSignals(True)
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try:
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if clear:
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self.clear()
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Node.restoreState(self, state)
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nodes = state['nodes']
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nodes.sort(key=lambda a: a['pos'][0])
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for n in nodes:
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if n['name'] in self._nodes:
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self._nodes[n['name']].restoreState(n['state'])
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continue
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try:
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node = self.createNode(n['class'], name=n['name'])
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node.restoreState(n['state'])
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except:
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printExc("Error creating node %s: (continuing anyway)" % n['name'])
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self.inputNode.restoreState(state.get('inputNode', {}))
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self.outputNode.restoreState(state.get('outputNode', {}))
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#self.restoreTerminals(state['terminals'])
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for n1, t1, n2, t2 in state['connects']:
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try:
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self.connectTerminals(self._nodes[n1][t1], self._nodes[n2][t2])
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except:
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print(self._nodes[n1].terminals)
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print(self._nodes[n2].terminals)
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printExc("Error connecting terminals %s.%s - %s.%s:" % (n1, t1, n2, t2))
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finally:
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self.blockSignals(False)
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self.outputChanged()
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self.sigChartLoaded.emit()
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self.sigStateChanged.emit()
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|
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def loadFile(self, fileName=None, startDir=None):
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"""Load a flowchart (``*.fc``) file.
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|
"""
|
|
if fileName is None:
|
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if startDir is None:
|
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startDir = self.filePath
|
|
if startDir is None:
|
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startDir = '.'
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self.fileDialog = FileDialog(None, "Load Flowchart..", startDir, "Flowchart (*.fc)")
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self.fileDialog.show()
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self.fileDialog.fileSelected.connect(self.loadFile)
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return
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## NOTE: was previously using a real widget for the file dialog's parent, but this caused weird mouse event bugs..
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state = configfile.readConfigFile(fileName)
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self.restoreState(state, clear=True)
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self.viewBox.autoRange()
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self.sigFileLoaded.emit(fileName)
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|
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def saveFile(self, fileName=None, startDir=None, suggestedFileName='flowchart.fc'):
|
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"""Save this flowchart to a .fc file
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|
"""
|
|
if fileName is None:
|
|
if startDir is None:
|
|
startDir = self.filePath
|
|
if startDir is None:
|
|
startDir = '.'
|
|
self.fileDialog = FileDialog(None, "Save Flowchart..", startDir, "Flowchart (*.fc)")
|
|
self.fileDialog.setDefaultSuffix("fc")
|
|
self.fileDialog.setAcceptMode(QtGui.QFileDialog.AcceptMode.AcceptSave)
|
|
self.fileDialog.show()
|
|
self.fileDialog.fileSelected.connect(self.saveFile)
|
|
return
|
|
configfile.writeConfigFile(self.saveState(), fileName)
|
|
self.sigFileSaved.emit(fileName)
|
|
|
|
def clear(self):
|
|
"""Remove all nodes from this flowchart except the original input/output nodes.
|
|
"""
|
|
for n in list(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(GraphicsObject):
|
|
|
|
def __init__(self, chart):
|
|
GraphicsObject.__init__(self)
|
|
self.chart = chart ## chart is an instance of Flowchart()
|
|
self.updateTerminals()
|
|
|
|
def updateTerminals(self):
|
|
self.terminals = {}
|
|
bounds = self.boundingRect()
|
|
inp = self.chart.inputs()
|
|
dy = bounds.height() / (len(inp)+1)
|
|
y = dy
|
|
for n, t in inp.items():
|
|
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.items():
|
|
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.ScrollMode.ScrollPerPixel)
|
|
self.ui.ctrlList.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarPolicy.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.setSectionResizeMode(0, h.ResizeMode.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, RuntimeError):
|
|
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)
|
|
|
|
def clearSelection(self):
|
|
self.ui.ctrlList.selectionModel().clearSelection()
|
|
|
|
|
|
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.Policy.Preferred, QtGui.QSizePolicy.Policy.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 = DataTreeWidget()
|
|
#self.selectedTree.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarPolicy.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 = []
|
|
self.chart.library.reload()
|
|
self.buildMenu()
|
|
|
|
def buildMenu(self, pos=None):
|
|
def buildSubMenu(node, rootMenu, subMenus, pos=None):
|
|
for section, node in node.items():
|
|
if isinstance(node, OrderedDict):
|
|
menu = QtGui.QMenu(section)
|
|
rootMenu.addMenu(menu)
|
|
buildSubMenu(node, menu, subMenus, pos=pos)
|
|
subMenus.append(menu)
|
|
else:
|
|
act = rootMenu.addAction(section)
|
|
act.nodeType = section
|
|
act.pos = pos
|
|
self.nodeMenu = QtGui.QMenu()
|
|
self.subMenus = []
|
|
buildSubMenu(self.chart.library.getNodeTree(), self.nodeMenu, self.subMenus, pos=pos)
|
|
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.MouseButton.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
|
|
if n in self.ctrl.items:
|
|
self.ctrl.select(n)
|
|
else:
|
|
self.ctrl.clearSelection()
|
|
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
|