def __init__(self,widget, graphData,clut):
QtGui.QGraphicsView.__init__(self)
self.g = graphData
self.clut = clut
self.Order =[]
self.height = 250
self.widget = widget
self.width = 500
self.AllNodes = None
self._2NodeIds = []
self.NodeIds = []
self.setMinimumSize(300, 200)
self.centerPos = (self.width/2 + 1, self.height -10)
self.dendogram = None
self.generateDendogram()
self.initUI()
python类QGraphicsView()的实例源码
def initUI(self):
scene = QtGui.QGraphicsScene(self)
scene = QtGui.QGraphicsScene(self)
scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex)
scene.setSceneRect(-200, -200, 400, 400)
self.setScene(scene)
self.scene = scene
self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
self.setRenderHint(QtGui.QPainter.Antialiasing)
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter)
self.setDragMode(QtGui.QGraphicsView.ScrollHandDrag)
self.setInteractive(True)
self.NodeIds = []
self.centrality = []
self.Scene_to_be_updated = scene
self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
i = 0
self.dendogramPos()
self.setSceneRect(self.Scene_to_be_updated.itemsBoundingRect())
self.setScene(self.Scene_to_be_updated)
self.fitInView(self.Scene_to_be_updated.itemsBoundingRect(),QtCore.Qt.KeepAspectRatio)
self.scaleView(math.pow(2.5, -900/ 1040.0))
def __init__(self,Graph,induced_graph,correlationTable,clut,Max, Matrix, ma, Min1, Max1, Pos):
QtGui.QGraphicsView.__init__(self)
self.induced_graph = induced_graph
self.correlationTable = weakref.ref(correlationTable)
self.correlationTableObject = self.correlationTable()
self.setMinimumSize(200, 150)
self.Max = Max
self.Min1 = Min1
self.Max1 = Max1
self.Pos = Pos
self.ma = ma
self.Graph = Graph
self.Matrix = Matrix
self.clut = clut
self.initUI()
def __init__(self,parent):
QtGui.QGraphicsView.__init__(self)
self.parent = parent;
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse);
self.setDragMode(QtGui.QGraphicsView.ScrollHandDrag);
self.setViewportUpdateMode(QtGui.QGraphicsView.FullViewportUpdate);
self.setRenderHints(0);
self.scene = QtGui.QGraphicsScene();
self.setScene(self.scene)
self.offset_x = 0;
self.offset_y = 0;
self.marker_set = False
self.marker_is_visible = True
self.is_flipped = False
def mousePressEvent(self,event):
scene_point = self.mapToScene(event.x(),event.y())
self.parent.setPositionClicked(scene_point.x(),scene_point.y())
QtGui.QGraphicsView.mousePressEvent(self,event)
def __init__(self, stack, *args, **kwargs):
super(CompositionView, self).__init__(*args, **kwargs)
self.setResizeAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.setScene(CompositionWidget(stack, parent=self))
self.setAlignment((QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop))
self.scene().selectionChanged.connect(self.parse_selection_change)
def mousePressEvent(self, mouse_event):
modifiers = QtGui.QApplication.keyboardModifiers()
self.setDragMode(
QtGui.QGraphicsView.ScrollHandDrag
if modifiers == QtCore.Qt.AltModifier
else QtGui.QGraphicsView.NoDrag
)
self.setInteractive(not modifiers == QtCore.Qt.AltModifier)
super(CompositionView, self).mousePressEvent(mouse_event)
def mouseReleaseEvent(self, mouse_event):
super(CompositionView, self).mouseReleaseEvent(mouse_event)
self.setDragMode(QtGui.QGraphicsView.NoDrag)
def keyPressEvent(self, event):
key = event.key()
if key == QtCore.Qt.Key_D:
self.DisplayOnlyEdges = not(self.DisplayOnlyEdges)
self.NodeSelected(self.HighlightedId)
self.Scene_to_be_updated.update()
elif key == QtCore.Qt.Key_M:
self.ModularityBehaviour()
else:
QtGui.QGraphicsView.keyPressEvent(self, event)
self.Refresh()
def initUI(self):
scene = QtGui.QGraphicsScene(self)
scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex)
self.setScene(scene)
self.NodeIds = []
self.centrality = []
self.Scene_to_be_updated = scene
self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
self.setRenderHint(QtGui.QPainter.Antialiasing)
self.setInteractive(True)
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter)
self.setDragMode(QtGui.QGraphicsView.ScrollHandDrag)
i = 0
self.communityPos = nx.nx_pydot.graphviz_layout(self.induced_graph,prog='fdp',args='-Gsep=.25,-GK=20-Eweight=2')
# self.communityPos = nx.spring_layout(self.induced_graph,pos=self.Pos,weight='weight',scale=450)
for node in self.induced_graph.nodes():
i = i + 1
node_value=Node(self.Graph,i,self.correlationTableObject,True)
self.NodeIds.append(node_value)
scene.addItem(node_value)
x,y=self.communityPos[node]
node_value.setPos(x,y)
node_value.PutColor(self.clut[i-1])
k =0
for i,j in self.induced_graph.edges():
Weight = self.induced_graph[i][j]['weight']
Edge_Value = 1+(float(Weight-self.Min1)/(self.Max1 - self.Min1))*5
scene.addItem(Edge(self.Graph,self.NodeIds[i],self.NodeIds[j],k, i,j,self.Max,((self.Matrix[j,i]-self.Min1)/(self.Max1 - self.Min1))*5,True))
k = k + 1
self.setSceneRect(self.Scene_to_be_updated.itemsBoundingRect())
self.setScene(self.Scene_to_be_updated)
self.fitInView(self.Scene_to_be_updated.itemsBoundingRect(),QtCore.Qt.KeepAspectRatio)
self.scaleView(math.pow(2.5, -900 / 1040.0))
self.nodes = [item for item in scene.items() if isinstance(item, Node)]
self.edges = [item for item in scene.items() if isinstance(item, Edge)]
def initUI(self):
"""
initialize all the components required
"""
self.presentNodeObjects = []
self.centrality = []
scene = QtGui.QGraphicsScene(self)
scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex)
scene.setSceneRect(-200, -200, 400, 400)
self.setScene(scene)
self.scene = scene
self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
self.setRenderHint(QtGui.QPainter.Antialiasing)
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter)
self.setDragMode(QtGui.QGraphicsView.ScrollHandDrag)
self.setInteractive(True)
self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse)
self.Scene_to_be_updated = scene
self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
i = 0
self.setSceneRect(self.Scene_to_be_updated.itemsBoundingRect())
self.setScene(self.Scene_to_be_updated)
self.fitInView(self.Scene_to_be_updated.itemsBoundingRect(),QtCore.Qt.KeepAspectRatio)
self.scaleView(math.pow(2.0, -900/ 1040.0))
def __init__(self):
super(NodeView,self).__init__()
self._scene = OPScene()
# Obsolete
self.nodeList = list()
# Variables
self.clickedItem = None
self.itemMode = None # Define which item is selected
self.mousePositionX = 0
self.mousePositionY = 0
self.mode = None
# Configure QGraphics View
self.setSceneRect(0, 0, -1, -1)
self.setFocusPolicy(QtCore.Qt.ClickFocus)
self.setMouseTracking(True)
self.setRenderHints(QtGui.QPainter.Antialiasing)
self.setViewportUpdateMode(QtGui.QGraphicsView.FullViewportUpdate)
# Init QGraphic Scene
self.sc = QtGui.QGraphicsScene()
self.setScene(self.sc)
self.sceneScale = 0.7
# Paint the background
brush = QtGui.QBrush()
brush.setTransform(QtGui.QTransform().scale(0.75, 0.75))
brush.setTextureImage(QtGui.QImage("/Users/draknova/Documents/workspace/sPipe/bin/images/gridTexture.jpg"))
self.sc.setBackgroundBrush(brush)
######################
####### EVENTS #######
######################
### KEYBOARD EVENTS ##
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(950, 537)
self.verticalLayout = QtGui.QVBoxLayout(Dialog)
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.dist = QtGui.QLabel(Dialog)
self.dist.setObjectName(_fromUtf8("dist"))
self.verticalLayout.addWidget(self.dist)
self.graphicsView = QtGui.QGraphicsView(Dialog)
self.graphicsView.setObjectName(_fromUtf8("graphicsView"))
self.verticalLayout.addWidget(self.graphicsView)
self.horizontalLayout = QtGui.QHBoxLayout()
self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
self.stop = QtGui.QPushButton(Dialog)
self.stop.setObjectName(_fromUtf8("stop"))
self.horizontalLayout.addWidget(self.stop)
self.init = QtGui.QPushButton(Dialog)
self.init.setObjectName(_fromUtf8("init"))
self.horizontalLayout.addWidget(self.init)
self.start = QtGui.QPushButton(Dialog)
self.start.setObjectName(_fromUtf8("start"))
self.horizontalLayout.addWidget(self.start)
self.verticalLayout.addLayout(self.horizontalLayout)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
