def __init__(self, G=None, pos=None, parent=None):
QWidget.__init__(self, parent)
self.scene = GraphGraphicsScene(G, pos, self)
self.view = QGraphicsView(self.scene, self)
self.button = QPushButton("Quit", self)
self.nodeButton = QPushButton("Node", self)
self.edgeButton = QPushButton("Edge", self)
self.addButton = QPushButton("Add", self)
self.deleteButton = QPushButton("Delete", self)
self.printButton = QPushButton("Print", self)
self.eulerButton = QPushButton("Euler", self)
self.generateFullButton = QPushButton("Full", self)
self.generateHalfButton = QPushButton("Half", self)
self.infoButton = QPushButton("Info", self)
# self.testButton = QPushButton('Test', self)
self.nodesInputLabel = QLabel("Nodes", self)
self.edgesInputLabel = QLabel("Edges", self)
self.saveButton = QPushButton("Save", self)
self.loadButton = QPushButton("Load", self)
self.saveAsButton = QPushButton("SaveAs", self)
self.bridgeButton = QPushButton("Bridge", self)
self.stepSlider = QSlider(self)
self.cursorLabelX = QLabel("X:", self)
self.cursorLabelY = QLabel("Y:", self)
self.nodeNumberLabel = QLabel("Nr:", self)
self.fileLabel = QLabel("File:", self)
self.nodeInfo = QLabel("N:", self)
self.edgeInfo = QLabel("E:", self)
self.eulerInfo = QLabel("None", self)
# self.fileInput = QLineEdit(self)
self.fileInput = QLabel("", self)
self.euler = Euler()
self.eulerStep = 0
self.eulerPath = []
validator = QIntValidator(0, 10000)
self.nodesNumberInput = QLineEdit(self)
self.nodesNumberInput.setValidator(validator)
self.edgesNumberInput = QLineEdit(self)
self.edgesNumberInput.setValidator(validator)
self.cursorLabelX.setMinimumSize(150, 25)
self.cursorLabelY.setMinimumSize(150, 25)
self.nodeNumberLabel.setMinimumSize(150, 25)
self.labelsGroup = QVBoxLayout()
self.labelsGroup.addWidget(self.cursorLabelX)
self.labelsGroup.addWidget(self.cursorLabelY)
self.labelsGroup.addWidget(self.nodeNumberLabel)
HEIGHT = 50
WIDTH = 50
self.nodeButton.setFixedSize(HEIGHT, WIDTH)
self.edgeButton.setFixedSize(HEIGHT, WIDTH)
self.addButton.setFixedSize(HEIGHT, WIDTH)
self.button.setFixedSize(HEIGHT, WIDTH)
self.deleteButton.setFixedSize(HEIGHT, WIDTH)
self.printButton.setFixedSize(HEIGHT, WIDTH)
self.eulerButton.setFixedSize(HEIGHT, WIDTH)
self.generateFullButton.setFixedSize(HEIGHT, WIDTH)
self.generateHalfButton.setFixedSize(HEIGHT, WIDTH)
self.saveButton.setFixedSize(HEIGHT, WIDTH)
self.loadButton.setFixedSize(HEIGHT, WIDTH)
self.saveAsButton.setFixedSize(HEIGHT, WIDTH)
self.infoButton.setFixedSize(HEIGHT, WIDTH)
self.bridgeButton.setFixedSize(HEIGHT, WIDTH)
self.nodesNumberInput.setFixedSize(HEIGHT * 2, 28)
self.edgesNumberInput.setFixedSize(HEIGHT * 2, 28)
self.stepSlider.setFixedSize(HEIGHT * 2, 28)
# self.testButton.setFixedSize(HEIGHT, WIDTH)
self.disableSlider()
self.stepSlider.setOrientation(Qt.Horizontal)
horizontal_expanding_spacer1 = QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.fileGroup = QHBoxLayout()
self.fileGroup.addWidget(self.fileLabel)
self.fileGroup.addWidget(self.fileInput)
self.fileGroup.addItem(horizontal_expanding_spacer1)
self.actionsButtonGroup = QHBoxLayout()
self.actionsButtonGroup.addWidget(self.addButton)
self.actionsButtonGroup.addWidget(self.deleteButton)
self.actionsButtonGroup.addWidget(self.printButton)
self.actionsButtonGroup.addWidget(self.eulerButton)
self.actionsButtonGroup.addWidget(self.generateFullButton)
self.actionsButtonGroup.addWidget(self.generateHalfButton)
self.actionsButtonGroup.addWidget(self.saveButton)
self.actionsButtonGroup.addWidget(self.loadButton)
self.actionsButtonGroup.addWidget(self.saveAsButton)
self.actionsButtonGroup.addWidget(self.infoButton)
self.actionsButtonGroup.addWidget(self.bridgeButton)
# self.actionsButtonGroup.addWidget(self.testButton)
self.actionsButtonGroup.addWidget(self.button)
self.topGroup = QVBoxLayout()
self.topGroup.addItem(self.fileGroup)
self.topGroup.addItem(self.actionsButtonGroup)
horizontal_expanding_spacer = QSpacerItem(10, 10, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.actionsButtonGroup.addItem(horizontal_expanding_spacer)
self.actionsButtonGroup.addItem(self.labelsGroup)
self.modeButtonGroup = QVBoxLayout()
self.modeButtonGroup.addWidget(self.nodeButton)
self.modeButtonGroup.addWidget(self.edgeButton)
self.modeButtonGroup.addWidget(self.nodesInputLabel)
self.modeButtonGroup.addWidget(self.nodesNumberInput)
self.modeButtonGroup.addWidget(self.edgesInputLabel)
self.modeButtonGroup.addWidget(self.edgesNumberInput)
self.modeButtonGroup.addWidget(self.stepSlider)
vertical_expanding_spacer = QSpacerItem(10, 10, QSizePolicy.Minimum, QSizePolicy.Expanding)
self.modeButtonGroup.addItem(vertical_expanding_spacer)
self.infoGroup = QVBoxLayout()
self.infoGroup.addWidget(self.edgeInfo)
self.infoGroup.addWidget(self.nodeInfo)
self.infoGroup.addWidget(self.eulerInfo)
self.modeButtonGroup.addItem(self.infoGroup)
self.button.clicked.connect(QCoreApplication.instance().quit)
self.addButton.clicked.connect(self.add)
self.deleteButton.clicked.connect(self.delete)
self.nodeButton.clicked.connect(self.nodeButtonEvent)
self.edgeButton.clicked.connect(self.edgeButtonEvent)
self.printButton.clicked.connect(self.printButtonEvent)
self.eulerButton.clicked.connect(self.findEulerPath)
self.generateFullButton.clicked.connect(self.generateFull)
self.generateHalfButton.clicked.connect(self.generateHalf)
# self.testButton.clicked.connect(self.scene.changeColor)
self.saveAsButton.clicked.connect(self.saveAsFile)
self.saveButton.clicked.connect(self.saveFile)
self.loadButton.clicked.connect(self.loadFile)
self.scene.cursorPositionSignal.connect(self.setLabels)
self.scene.nodeNumberSignal.connect(self.setLabelNumber)
self.stepSlider.sliderMoved.connect(self.setEulerStep)
self.bridgeButton.clicked.connect(self.findBridges)
self.infoButton.clicked.connect(self.setInfo)
self.view.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
layoutH = QHBoxLayout()
layoutH.addWidget(self.view)
layoutH.addItem(self.modeButtonGroup)
layoutV = QVBoxLayout()
layoutV.addItem(self.topGroup)
layoutV.addItem(layoutH)
self.setLayout(layoutV)
self.setWindowTitle("Example")
self.scene.setSceneRect(0, 0, 1, 1)
self.view.setMouseTracking(True)
self.showMaximized()
self.graphFile = GraphFile("file.txt")
class GraphGui(QWidget):
def __init__(self, G=None, pos=None, parent=None):
QWidget.__init__(self, parent)
self.scene = GraphGraphicsScene(G, pos, self)
self.view = QGraphicsView(self.scene, self)
self.button = QPushButton("Quit", self)
self.nodeButton = QPushButton("Node", self)
self.edgeButton = QPushButton("Edge", self)
self.addButton = QPushButton("Add", self)
self.deleteButton = QPushButton("Delete", self)
self.printButton = QPushButton("Print", self)
self.eulerButton = QPushButton("Euler", self)
self.generateFullButton = QPushButton("Full", self)
self.generateHalfButton = QPushButton("Half", self)
self.infoButton = QPushButton("Info", self)
# self.testButton = QPushButton('Test', self)
self.nodesInputLabel = QLabel("Nodes", self)
self.edgesInputLabel = QLabel("Edges", self)
self.saveButton = QPushButton("Save", self)
self.loadButton = QPushButton("Load", self)
self.saveAsButton = QPushButton("SaveAs", self)
self.bridgeButton = QPushButton("Bridge", self)
self.stepSlider = QSlider(self)
self.cursorLabelX = QLabel("X:", self)
self.cursorLabelY = QLabel("Y:", self)
self.nodeNumberLabel = QLabel("Nr:", self)
self.fileLabel = QLabel("File:", self)
self.nodeInfo = QLabel("N:", self)
self.edgeInfo = QLabel("E:", self)
self.eulerInfo = QLabel("None", self)
# self.fileInput = QLineEdit(self)
self.fileInput = QLabel("", self)
self.euler = Euler()
self.eulerStep = 0
self.eulerPath = []
validator = QIntValidator(0, 10000)
self.nodesNumberInput = QLineEdit(self)
self.nodesNumberInput.setValidator(validator)
self.edgesNumberInput = QLineEdit(self)
self.edgesNumberInput.setValidator(validator)
self.cursorLabelX.setMinimumSize(150, 25)
self.cursorLabelY.setMinimumSize(150, 25)
self.nodeNumberLabel.setMinimumSize(150, 25)
self.labelsGroup = QVBoxLayout()
self.labelsGroup.addWidget(self.cursorLabelX)
self.labelsGroup.addWidget(self.cursorLabelY)
self.labelsGroup.addWidget(self.nodeNumberLabel)
HEIGHT = 50
WIDTH = 50
self.nodeButton.setFixedSize(HEIGHT, WIDTH)
self.edgeButton.setFixedSize(HEIGHT, WIDTH)
self.addButton.setFixedSize(HEIGHT, WIDTH)
self.button.setFixedSize(HEIGHT, WIDTH)
self.deleteButton.setFixedSize(HEIGHT, WIDTH)
self.printButton.setFixedSize(HEIGHT, WIDTH)
self.eulerButton.setFixedSize(HEIGHT, WIDTH)
self.generateFullButton.setFixedSize(HEIGHT, WIDTH)
self.generateHalfButton.setFixedSize(HEIGHT, WIDTH)
self.saveButton.setFixedSize(HEIGHT, WIDTH)
self.loadButton.setFixedSize(HEIGHT, WIDTH)
self.saveAsButton.setFixedSize(HEIGHT, WIDTH)
self.infoButton.setFixedSize(HEIGHT, WIDTH)
self.bridgeButton.setFixedSize(HEIGHT, WIDTH)
self.nodesNumberInput.setFixedSize(HEIGHT * 2, 28)
self.edgesNumberInput.setFixedSize(HEIGHT * 2, 28)
self.stepSlider.setFixedSize(HEIGHT * 2, 28)
# self.testButton.setFixedSize(HEIGHT, WIDTH)
self.disableSlider()
self.stepSlider.setOrientation(Qt.Horizontal)
horizontal_expanding_spacer1 = QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.fileGroup = QHBoxLayout()
self.fileGroup.addWidget(self.fileLabel)
self.fileGroup.addWidget(self.fileInput)
self.fileGroup.addItem(horizontal_expanding_spacer1)
self.actionsButtonGroup = QHBoxLayout()
self.actionsButtonGroup.addWidget(self.addButton)
self.actionsButtonGroup.addWidget(self.deleteButton)
self.actionsButtonGroup.addWidget(self.printButton)
self.actionsButtonGroup.addWidget(self.eulerButton)
self.actionsButtonGroup.addWidget(self.generateFullButton)
self.actionsButtonGroup.addWidget(self.generateHalfButton)
self.actionsButtonGroup.addWidget(self.saveButton)
self.actionsButtonGroup.addWidget(self.loadButton)
self.actionsButtonGroup.addWidget(self.saveAsButton)
self.actionsButtonGroup.addWidget(self.infoButton)
self.actionsButtonGroup.addWidget(self.bridgeButton)
# self.actionsButtonGroup.addWidget(self.testButton)
self.actionsButtonGroup.addWidget(self.button)
self.topGroup = QVBoxLayout()
self.topGroup.addItem(self.fileGroup)
self.topGroup.addItem(self.actionsButtonGroup)
horizontal_expanding_spacer = QSpacerItem(10, 10, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.actionsButtonGroup.addItem(horizontal_expanding_spacer)
self.actionsButtonGroup.addItem(self.labelsGroup)
self.modeButtonGroup = QVBoxLayout()
self.modeButtonGroup.addWidget(self.nodeButton)
self.modeButtonGroup.addWidget(self.edgeButton)
self.modeButtonGroup.addWidget(self.nodesInputLabel)
self.modeButtonGroup.addWidget(self.nodesNumberInput)
self.modeButtonGroup.addWidget(self.edgesInputLabel)
self.modeButtonGroup.addWidget(self.edgesNumberInput)
self.modeButtonGroup.addWidget(self.stepSlider)
vertical_expanding_spacer = QSpacerItem(10, 10, QSizePolicy.Minimum, QSizePolicy.Expanding)
self.modeButtonGroup.addItem(vertical_expanding_spacer)
self.infoGroup = QVBoxLayout()
self.infoGroup.addWidget(self.edgeInfo)
self.infoGroup.addWidget(self.nodeInfo)
self.infoGroup.addWidget(self.eulerInfo)
self.modeButtonGroup.addItem(self.infoGroup)
self.button.clicked.connect(QCoreApplication.instance().quit)
self.addButton.clicked.connect(self.add)
self.deleteButton.clicked.connect(self.delete)
self.nodeButton.clicked.connect(self.nodeButtonEvent)
self.edgeButton.clicked.connect(self.edgeButtonEvent)
self.printButton.clicked.connect(self.printButtonEvent)
self.eulerButton.clicked.connect(self.findEulerPath)
self.generateFullButton.clicked.connect(self.generateFull)
self.generateHalfButton.clicked.connect(self.generateHalf)
# self.testButton.clicked.connect(self.scene.changeColor)
self.saveAsButton.clicked.connect(self.saveAsFile)
self.saveButton.clicked.connect(self.saveFile)
self.loadButton.clicked.connect(self.loadFile)
self.scene.cursorPositionSignal.connect(self.setLabels)
self.scene.nodeNumberSignal.connect(self.setLabelNumber)
self.stepSlider.sliderMoved.connect(self.setEulerStep)
self.bridgeButton.clicked.connect(self.findBridges)
self.infoButton.clicked.connect(self.setInfo)
self.view.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
layoutH = QHBoxLayout()
layoutH.addWidget(self.view)
layoutH.addItem(self.modeButtonGroup)
layoutV = QVBoxLayout()
layoutV.addItem(self.topGroup)
layoutV.addItem(layoutH)
self.setLayout(layoutV)
self.setWindowTitle("Example")
self.scene.setSceneRect(0, 0, 1, 1)
self.view.setMouseTracking(True)
self.showMaximized()
self.graphFile = GraphFile("file.txt")
def findBridges(self):
bridges = self.euler.find_bridges(self.scene.G)
print bridges
def generate(self, h_or_f):
generator = Generator()
nodesNumberStr = self.nodesNumberInput.text()
edgesNumberStr = self.edgesNumberInput.text()
if nodesNumberStr == "" or edgesNumberStr == "":
return
nodeNumber = int(nodesNumberStr)
edgesNumber = int(edgesNumberStr)
G = None
if h_or_f == "FULL":
G = generator.generate_full_euler_graph(nodeNumber, edgesNumber)
elif h_or_f == "HALF":
G = generator.generate_half_euler_graph(nodeNumber, edgesNumber)
if G is not None:
self.scene.clear()
self.scene.drawGraph(G)
self.setInfo()
def setInfo(self):
self.edgeInfo.setText("E: " + str(len(self.scene.G.edges())))
self.nodeInfo.setText("N: " + str(len(self.scene.G.nodes())))
info, odds = self.euler.checkGraph(self.scene.G)
self.eulerInfo.setText(info)
def generateHalf(self):
self.generate("HALF")
def generateFull(self):
self.generate("FULL")
def add(self):
self.scene.add()
self.setInfo()
def delete(self):
self.scene.delete()
self.setInfo()
def findEulerPath(self):
eulerPath = self.euler.start(self.scene.getGraph())
print eulerPath
if eulerPath is not None and len(eulerPath) > 0:
self.enableSlider(len(eulerPath))
self.eulerPath = eulerPath
def setEulerStep(self, stepNum):
self.scene.setColorForAllEdges(QColor.fromRgb(0, 0, 0))
if stepNum > 0:
for i in range(stepNum):
node1 = self.eulerPath[i]
node2 = self.eulerPath[i + 1]
self.scene.setColorForEdge(node1, node2, QColor.fromRgb(0, 255, 0))
def resizeEvent(self, event):
w = self.view.width() - 10
h = self.view.height() - 10
transform = QTransform.fromScale(w, h)
self.view.setTransform(transform)
QWidget.resizeEvent(self, event)
def enableSlider(self, maximum):
self.stepSlider.setEnabled(True)
self.stepSlider.setMinimum(0)
self.stepSlider.setMaximum(maximum - 1)
def disableSlider(self):
self.stepSlider.setDisabled(False)
def setLabels(self, x, y):
self.cursorLabelX.setText("X:" + str(x))
self.cursorLabelY.setText("Y:" + str(y))
def setLabelNumber(self, number):
self.nodeNumberLabel.setText("Nr:" + str(number))
def nodeButtonEvent(self):
if self.scene.getMode() == "None":
self.scene.changeMode("Node")
self.nodeButton.setFlat(True)
elif self.scene.getMode() == "Node":
self.nodeButton.setFlat(False)
self.scene.changeMode("None")
elif self.scene.getMode() == "Edge":
self.edgeButton.setFlat(False)
self.scene.changeMode("Node")
self.nodeButton.setFlat(True)
def edgeButtonEvent(self):
if self.scene.getMode() == "None":
self.scene.changeMode("Edge")
self.edgeButton.setFlat(True)
elif self.scene.getMode() == "Edge":
self.scene.changeMode("None")
self.edgeButton.setFlat(False)
elif self.scene.getMode() == "Node":
self.scene.changeMode("Edge")
self.nodeButton.setFlat(False)
self.edgeButton.setFlat(True)
def printButtonEvent(self):
print self.scene.G.nodes()
print self.scene.G.edges()
def saveFile(self):
if self.graphFile.path != "":
self.graphFile.save(self.scene.G, self.scene.getPos())
else:
self.saveAsFile()
def saveAsFile(self):
path = QFileDialog.getSaveFileName(self, "Open Graph", ".", "Text files (*.txt)")
self.setFilePath(path)
self.graphFile.save(self.scene.G, self.scene.getPos())
def loadFile(self):
path = QFileDialog.getOpenFileName(self, "Open Graph", ".", "Text files (*.txt)")
self.setFilePath(path)
(G, pos, n, n) = self.graphFile.load()
self.scene.clear()
self.scene.drawGraph(G, pos)
self.setInfo()
def setFilePath(self, path):
self.graphFile.path = path
self.fileInput.setText(path)
