def init(self, parent):
'''
'''
if self.control is None:
self.control = qtLED()
scene = QGraphicsScene()
# self.control.setStyleSheet("qtLED { border-style: none; }");
# self.control.setAutoFillBackground(True)
# system background color
scene.setBackgroundBrush(QBrush(QColor(237, 237, 237)))
self.control.setStyleSheet("border: 0px")
self.control.setMaximumWidth(35)
self.control.setMaximumHeight(35)
x, y = 10, 10
rad = 20
cx = x + rad / 1.75
cy = y + rad / 1.75
brush = self.get_color(self.value.state, cx, cy, rad / 2)
pen = QPen()
pen.setWidth(0)
self.led = scene.addEllipse(x, y, rad, rad,
pen=pen,
brush=brush
)
self.control.setScene(scene)
self.value.on_trait_change(self.update_object, 'state')
def init(self, parent):
"""
"""
rad = self.factory.radius
if not rad:
rad = 20
if self.control is None:
self.control = qtLED()
scene = QGraphicsScene()
# self.control.setStyleSheet("qtLED { border-style: none; }");
# self.control.setAutoFillBackground(True)
# system background color
scene.setBackgroundBrush(QBrush(QColor(237, 237, 237)))
self.control.setStyleSheet("border: 0px")
self.control.setMaximumWidth(rad+15)
self.control.setMaximumHeight(rad+15)
x, y = 10, 10
cx = x + rad / 1.75
cy = y + rad / 1.75
brush = self.get_color(self.value.state, cx, cy, rad / 2)
pen = QPen()
pen.setWidth(0)
self.led = scene.addEllipse(x, y, rad, rad,
pen=pen,
brush=brush
)
self.control.setScene(scene)
self.value.on_trait_change(self.update_object, 'state')
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
self.logger = logging.getLogger("zne")
self.logger.setLevel(logging.DEBUG)
self.setMinimumSize(560, 360)
self.setWindowTitle("ZOCP Node Editor")
self.setWindowIcon(QIcon('assets/icon.png'))
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self, self.scene, self.view)
self.nodesEditor.onAddConnection = self.onAddConnection
self.nodesEditor.onRemoveConnection = self.onRemoveConnection
self.nodesEditor.onBlockMoved = self.onBlockMoved
self.scale = 1
self.installActions()
self.initZOCP()
self.nodes = {}
self.pendingSubscribers = {}
QTimer.singleShot(250, lambda: self.scene.invalidate())
def setUp(self):
#Acquire resources
super(QColorOnSetBrush, self).setUp()
self.scene = QGraphicsScene()
poly = QPolygonF()
self.item = self.scene.addPolygon(poly)
self.color = QColor('black')
def __init__(self, view, controller):
self.view = view
self.controller = controller
self.scene = QGraphicsScene()
self.view.setScene(self.scene)
self.variables = {}
self.variableOrder = []
self.currentX = None
self.currentY = None
def __init__(self, mode, flags=[], **kwargs):
QGraphicsScene.__init__(self, 0, 0, 2*1280, 2*1024)
self.pts = []
self.curpts = []
self.flags = flags
proc_map = {'tricavity': (self.tricavity, [2,2,2]),
'ruler': (self.ruler, [2,2,2,2])}
self.process_points, self.numpts = proc_map[mode]
self.pts_left = self.numpts[:] # Shallow copy
self.kwargs = kwargs
class QNEMainWindow(QMainWindow):
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
quitAct = QAction("&Quit", self, shortcut="Ctrl+Q",
statusTip="Exit the application", triggered=self.close)
addAct = QAction("&Add", self, statusTip="Add a block", triggered=self.addBlock)
fileMenu = self.menuBar().addMenu("&File")
fileMenu.addAction(addAct)
fileMenu.addSeparator()
fileMenu.addAction(quitAct)
self.setWindowTitle("Node Editor")
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.view.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self)
self.nodesEditor.install(self.scene)
block = QNEBlock(None)
self.scene.addItem(block)
block.addPort("test", 0, QNEPort.NamePort)
block.addPort("TestBlock", 0, QNEPort.TypePort)
block.addInputPort("in1");
block.addInputPort("in2");
block.addInputPort("in3");
block.addOutputPort("out1");
block.addOutputPort("out2");
block.addOutputPort("out3");
block = block.clone()
block.setPos(150,0)
block = block.clone()
block.setPos(150,150)
def addBlock(self):
import random
import math
block = QNEBlock(None)
self.scene.addItem(block)
names = ["Vin", "Voutsadfasdf", "Imin", "Imax", "mul", "add", "sub", "div", "Conv", "FFT"]
for i in range(0,math.floor(random.uniform(3,8))):
block.addPort(random.choice(names), random.random()>0.5)
block.setPos(self.view.sceneRect().center().toPoint())
def test_setParentItem(self):
global qgraphics_item_painted
scene = QGraphicsScene()
scene.addText("test")
view = QGraphicsView(scene)
rect = self.createRoundRect(scene)
view.show()
QTimer.singleShot(1000, self.quit_app)
self.app.exec_()
self.assert_(qgraphics_item_painted)
def __init__(self, mode, flags=[], **kwargs):
QGraphicsScene.__init__(self, 0, 0, 2 * 1280, 2 * 1024)
self.pts = []
self.curpts = []
self.flags = flags
proc_map = {
'tricavity': (self.tricavity, [2, 2, 2]),
'ruler': (self.ruler, [2, 2, 2, 2])
}
self.process_points, self.numpts = proc_map[mode]
self.pts_left = self.numpts[:] # Shallow copy
self.kwargs = kwargs
def _init_widgets(self):
self.scene = QGraphicsScene(self.parent())
self.setScene(self.scene)
# self.setDragMode(QGraphicsView.ScrollHandDrag)
self.setRenderHints(QPainter.Antialiasing
| QPainter.SmoothPixmapTransform
| QPainter.HighQualityAntialiasing)
self.setHorizontalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.horizontalScrollBar().setSingleStep(16)
self.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
self.verticalScrollBar().setSingleStep(16)
def test_setParentItem(self):
global qgraphics_item_painted
scene = QGraphicsScene()
scene.addText("test")
view = QGraphicsView(scene)
rect = self.createRoundRect(scene)
view.show()
QTimer.singleShot(1000, self.quit_app)
self.app.exec_()
self.assert_(qgraphics_item_painted)
def mouseMoveEvent(self, event):
QGraphicsScene.mouseMoveEvent(self, event)
if event.isAccepted():
return
if (event.buttons() & QtCore.Qt.LeftButton):
delta = event.scenePos() - event.lastScenePos()
self.model.setXRotation(self.model.xRotation() - delta.y()*4)
self.model.setYRotation(self.model.yRotation() + delta.x()*4)
event.accept()
self.update()
def __init__(self, camera=None, scene=None):
super(DrawableCameraView, self).__init__()
if scene is None:
self.scene = QGraphicsScene()
else:
self.scene = scene
self.setScene(self.scene)
self.camera = camera
self.pixmapitem = None
# Overlay variables
self.overlay_visible = False
self.overlay_images = None
def mouseMoveEvent(self, event):
QGraphicsScene.mouseMoveEvent(self, event)
if event.isAccepted():
return
if (event.buttons() & QtCore.Qt.LeftButton):
delta = event.scenePos() - event.lastScenePos()
self.model.setXRotation(self.model.xRotation() - delta.y() * 4)
self.model.setYRotation(self.model.yRotation() + delta.x() * 4)
event.accept()
self.update()
def init(self, parent):
"""
"""
rad = self.factory.radius
if not rad:
rad = 20
if self.control is None:
ctrl = qtLED()
layout = QVBoxLayout()
layout.addWidget(ctrl)
scene = QGraphicsScene()
# ctrl.setStyleSheet("qtLED { border-style: none; }");
# ctrl.setAutoFillBackground(True)
# system background color
scene.setBackgroundBrush(QBrush(QColor(237, 237, 237)))
ctrl.setStyleSheet("border: 0px")
ctrl.setMaximumWidth(rad + 15)
ctrl.setMaximumHeight(rad + 15)
x, y = 10, 10
cx = x + rad / 1.75
cy = y + rad / 1.75
brush = self.get_color(self.value.state, cx, cy, rad / 2)
pen = QPen()
pen.setWidth(0)
self.led = scene.addEllipse(x, y, rad, rad,
pen=pen,
brush=brush)
if self.factory.label:
txt = QLabel(self.factory.label)
layout.addWidget(txt)
layout.setAlignment(txt, Qt.AlignHCenter)
# txt = scene.addText(self.factory.label, QFont('arial 6'))
# txt.setPos(cx, 10)
ctrl.setScene(scene)
layout.setAlignment(ctrl, Qt.AlignHCenter)
self.value.on_trait_change(self.update_object, 'state')
self.control = QWidget()
self.control.setLayout(layout)
def __init__(self):
self.app = QApplication.instance()
if self.app is None:
self.app = QApplication(sys.argv)
loader = QUiLoader()
self.mainWindow = loader.load("timelineTest.ui")
self.scene = QGraphicsScene()
self.mainWindow.graphicsView.setScene(self.scene)
track = timelineTrack()
self.addTrack(track)
self.readEDL(track, 'sample.edl')
self.mainWindow.show()
self.app.exec_()
def init(self, parent):
"""
"""
rad = self.factory.radius
if not rad:
rad = 20
if self.control is None:
ctrl = qtLED()
layout = QVBoxLayout()
layout.addWidget(ctrl)
scene = QGraphicsScene()
# ctrl.setStyleSheet("qtLED { border-style: none; }");
# ctrl.setAutoFillBackground(True)
# system background color
scene.setBackgroundBrush(QBrush(QColor(237, 237, 237)))
ctrl.setStyleSheet("border: 0px")
ctrl.setMaximumWidth(rad + 15)
ctrl.setMaximumHeight(rad + 15)
x, y = 10, 10
cx = x + rad / 1.75
cy = y + rad / 1.75
brush = self.get_color(self.value.state, cx, cy, rad / 2)
pen = QPen()
pen.setWidth(0)
self.led = scene.addEllipse(x, y, rad, rad, pen=pen, brush=brush)
if self.factory.label:
txt = QLabel(self.factory.label)
layout.addWidget(txt)
layout.setAlignment(txt, Qt.AlignHCenter)
# txt = scene.addText(self.factory.label, QFont('arial 6'))
# txt.setPos(cx, 10)
ctrl.setScene(scene)
layout.setAlignment(ctrl, Qt.AlignHCenter)
self.value.on_trait_change(self.update_object, 'state')
self.control = QWidget()
self.control.setLayout(layout)
def setUp(self):
#Acquire resources
super(ItemRetrieve, self).setUp()
self.scene = QGraphicsScene()
self.topleft = QGraphicsRectItem(0, 0, 100, 100)
self.topright = QGraphicsRectItem(100, 0, 100, 100)
self.bottomleft = QGraphicsRectItem(0, 100, 100, 100)
self.bottomright = QGraphicsRectItem(100, 100, 100, 100)
self.items = [
self.topleft, self.topright, self.bottomleft, self.bottomright
]
for item in self.items:
self.scene.addItem(item)
def __init__(self, mainwindow):
""" Initializes the GraphWidget. """
super(GraphWidget, self).__init__(mainwindow)
self.setupUi(self.mw)
self.startRelation = None
self.abstractGraph = None
self.gv = pygraphviz.AGraph(strict=False)
self.widget = self.layoutWidget
self.log = logging.getLogger('.' + __name__)
self.nodesToQNodes = {}
self.qLines = []
self.qpens = {}
self.completer = QCompleter(list(""))
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.setWidget(self.lineEdit)
self.lastScale = 1
self.initMenu()
self.roots = set()
self.doubleSpinBox.valueChanged[float].connect(self.changeScale)
self.lineEdit.textChanged.connect(self.searchNode)
self.rootSelector.insertItem(0, "---")
self.rootSelector.currentIndexChanged[str].connect(self.newRoot)
self.relations.currentIndexChanged[str].connect(self.newVariant)
self.depth.valueChanged.connect(self.newRoot)
self._updateActiveOntology()
self.graphicsView.setScene(QGraphicsScene())
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
self.logger = logging.getLogger("zne")
self.logger.setLevel(logging.DEBUG)
self.setMinimumSize(560,360)
self.setWindowTitle("ZOCP Node Editor")
self.setWindowIcon(QIcon('assets/icon.png'))
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self, self.scene, self.view)
self.nodesEditor.onAddConnection = self.onAddConnection
self.nodesEditor.onRemoveConnection = self.onRemoveConnection
self.nodesEditor.onBlockMoved = self.onBlockMoved
self.scale = 1
self.installActions()
self.initZOCP()
self.nodes = {}
self.pendingSubscribers = {}
QTimer.singleShot(250, lambda: self.scene.invalidate())
def __init__(self, graphicsView): self.scene = QGraphicsScene() self.scene.setSceneRect(0,0,SCENE_WIDTH,SCENE_HEIGHT) graphicsView.setScene(self.scene) # handles physics involved in collisiions/detection self.cm = collisionManager()
def testIt(self):
scene = QGraphicsScene()
i1 = QGraphicsRectItem()
scene.addItem(i1)
i2 = QGraphicsRectItem(i1)
i3 = QGraphicsRectItem()
i4 = QGraphicsRectItem()
group = scene.createItemGroup((i2, i3, i4))
scene.removeItem(i1)
del i1 # this shouldn't delete i2
self.assertEqual(i2.scene(), scene)
scene.destroyItemGroup(group)
self.assertRaises(RuntimeError, group.type)
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
quitAct = QAction("&Quit",
self,
shortcut="Ctrl+Q",
statusTip="Exit the application",
triggered=self.close)
addAct = QAction("&Add",
self,
statusTip="Add a block",
triggered=self.addBlock)
fileMenu = self.menuBar().addMenu("&File")
fileMenu.addAction(addAct)
fileMenu.addSeparator()
fileMenu.addAction(quitAct)
self.setWindowTitle("Node Editor")
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.view.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self)
self.nodesEditor.install(self.scene)
block = QNEBlock(None)
self.scene.addItem(block)
block.addPort("test", 0, QNEPort.NamePort)
block.addPort("TestBlock", 0, QNEPort.TypePort)
block.addInputPort("in1")
block.addInputPort("in2")
block.addInputPort("in3")
block.addOutputPort("out1")
block.addOutputPort("out2")
block.addOutputPort("out3")
block = block.clone()
block.setPos(150, 0)
block = block.clone()
block.setPos(150, 150)
class ConstructorWithRect(unittest.TestCase):
'''QGraphicsScene qrect constructor and related sizes'''
def setUp(self):
#Acquire resources
# PyQt4 doesn't accept a QRect as argument to constructor
self.scene = QGraphicsScene(0, 200, 150, 175)
def tearDown(self):
#Release resources
del self.scene
def testHeight(self):
#QGraphicsScene.height()
self.assertEqual(self.scene.height(), 175)
def testWidth(self):
#QGraphicsScene.width()
self.assertEqual(self.scene.width(), 150)
def update_frame(self, img):
'''
update the image
:return:
'''
#if not self.queue.empty():
# frame = self.queue.get()
#img = frame['img']
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
size = self.video_view.size()
img = cv2.resize(img, (size.width() - 10, size.height() - 10))
height, width, bpc = img.shape
bpl = bpc * width
image = QImage(img.data, width, height, bpl, QImage.Format_RGB888)
pitem = QGraphicsPixmapItem(QPixmap.fromImage(image))
scene = QGraphicsScene()
scene.addItem(pitem)
self.video_view.setScene(scene)
class ConstructorWithRect(unittest.TestCase):
"""QGraphicsScene qrect constructor and related sizes"""
def setUp(self):
# Acquire resources
# PyQt4 doesn't accept a QRect as argument to constructor
self.scene = QGraphicsScene(0, 200, 150, 175)
def tearDown(self):
# Release resources
del self.scene
def testHeight(self):
# QGraphicsScene.height()
self.assertEqual(self.scene.height(), 175)
def testWidth(self):
# QGraphicsScene.width()
self.assertEqual(self.scene.width(), 150)
class ReferenceCount(UsesQApplication):
def setUp(self):
super(ReferenceCount, self).setUp()
self.scene = QGraphicsScene()
def tearDown(self):
super(ReferenceCount, self).tearDown()
def beforeTest(self):
points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
pol = self.scene.addPolygon(QPolygonF(points))
self.assert_(isinstance(pol, QGraphicsPolygonItem))
self.wrp = weakref.ref(pol, pol_del)
#refcount need be 3 because one ref for QGraphicsScene, and one to rect obj
self.assertEqual(sys.getrefcount(pol), 3)
def testReferenceCount(self):
global destroyedRect
global destroyedPol
self.beforeTest()
rect = self.scene.addRect(10.0, 10.0, 10.0, 10.0)
self.assert_(isinstance(rect, QGraphicsRectItem))
self.wrr = weakref.ref(rect, rect_del)
#refcount need be 3 because one ref for QGraphicsScene, and one to rect obj
self.assertEqual(sys.getrefcount(rect), 3)
del rect
#not destroyed because one ref continue in QGraphicsScene
self.assertEqual(destroyedRect, False)
self.assertEqual(destroyedPol, False)
del self.scene
#QGraphicsScene was destroyed and this destroy internal ref to rect
self.assertEqual(destroyedRect, True)
self.assertEqual(destroyedPol, True)
class ReferenceCount(UsesQApplication):
def setUp(self):
super(ReferenceCount, self).setUp()
self.scene = QGraphicsScene()
def tearDown(self):
super(ReferenceCount, self).tearDown()
def beforeTest(self):
points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
pol = self.scene.addPolygon(QPolygonF(points))
self.assert_(isinstance(pol, QGraphicsPolygonItem))
self.wrp = weakref.ref(pol, pol_del)
#refcount need be 3 because one ref for QGraphicsScene, and one to rect obj
self.assertEqual(sys.getrefcount(pol), 3)
def testReferenceCount(self):
global destroyedRect
global destroyedPol
self.beforeTest()
rect = self.scene.addRect(10.0, 10.0, 10.0, 10.0)
self.assert_(isinstance(rect, QGraphicsRectItem))
self.wrr = weakref.ref(rect, rect_del)
#refcount need be 3 because one ref for QGraphicsScene, and one to rect obj
self.assertEqual(sys.getrefcount(rect), 3)
del rect
#not destroyed because one ref continue in QGraphicsScene
self.assertEqual(destroyedRect, False)
self.assertEqual(destroyedPol, False)
del self.scene
#QGraphicsScene was destroyed and this destroy internal ref to rect
self.assertEqual(destroyedRect, True)
self.assertEqual(destroyedPol, True)
def testIt(self):
scene = QGraphicsScene()
i1 = QGraphicsRectItem()
scene.addItem(i1)
i2 = QGraphicsRectItem(i1)
i3 = QGraphicsRectItem()
i4 = QGraphicsRectItem()
group = scene.createItemGroup((i2, i3, i4))
scene.removeItem(i1)
del i1 # this shouldn't delete i2
self.assertEqual(i2.scene(), scene)
scene.destroyItemGroup(group)
self.assertRaises(RuntimeError, group.type)
class timelineTest(object):
'''
Main Class
'''
def __init__(self):
self.app = QApplication.instance()
if self.app is None:
self.app = QApplication(sys.argv)
loader = QUiLoader()
self.mainWindow = loader.load("timelineTest.ui")
self.scene = QGraphicsScene()
self.mainWindow.graphicsView.setScene(self.scene)
track = timelineTrack()
self.addTrack(track)
self.readEDL(track, 'sample.edl')
self.mainWindow.show()
self.app.exec_()
def readEDL(self, track, edlfile):
edlFile = open(edlfile)
for line in edlFile.readlines():
match = re.match(
r"(\d{3})\s+\w+\s+\w+\s+\w+\s+(\d{2}:\d{2}:\d{2}:\d{2}) (\d{2}:\d{2}:\d{2}:\d{2}) (\d{2}:\d{2}:\d{2}:\d{2}) (\d{2}:\d{2}:\d{2}:\d{2})",
line)
if match is not None:
editStart = tc2frames(match.group(2), 24)
editEnd = tc2frames(match.group(3), 24)
editLength = editStart - editEnd
track.addClip(editStart, editLength)
edlFile.close()
def addTrack(self, track):
'''
Add track to timeline
'''
self.scene.addItem(track)
"""
def __init__(self, camera=None, scene=None):
super(DrawableCameraView, self).__init__()
if scene is None:
self.scene = QGraphicsScene()
else:
self.scene = scene
self.setScene(self.scene)
self.camera = camera
self.pixmapitem = None
# Overlay variables
self.overlay_visible = False
self.overlay_images = None
def setUp(self):
# Acquire resources
super(ItemRetrieve, self).setUp()
self.scene = QGraphicsScene()
self.topleft = QGraphicsRectItem(0, 0, 100, 100)
self.topright = QGraphicsRectItem(100, 0, 100, 100)
self.bottomleft = QGraphicsRectItem(0, 100, 100, 100)
self.bottomright = QGraphicsRectItem(100, 100, 100, 100)
self.items = [self.topleft, self.topright, self.bottomleft, self.bottomright]
for item in self.items:
self.scene.addItem(item)
def __init__(self, parent=None, controller=None):
'''
The initialization instanciates the GraphicsView/GraphicsScene
combo. It sets up reference variables for handling nodes
and edges of the graph. It register various signals.
'''
super(NetworkView, self).__init__(parent)
self.parent = parent # maybe needed later?
self.controller = controller
self.graphicsView = GraphicsView(self)
self.graphicsScene = QGraphicsScene(self)
self.graphicsView.setScene(self.graphicsScene)
self.modelSelectionInProgress = False
self.registerSignals()
self.statusBar = None # can be set from the outside
self.species = None
self.reactions = None
# TODO: check these
self.nodes = []
self.edges = []
self.speciesNodesMapper = {}
self.reactionEdgesMapper = {}
self.lock = QReadWriteLock()
layout = QHBoxLayout()
layout.addWidget(self.graphicsView, 1)
self.setLayout(layout)
def __init__(self,parent):
global configuration
super(OrderWorkflowDialog,self).__init__(parent)
self.grey_pen = QPen(Qt.gray)
title = _("Order workflow")
self.setWindowTitle(title)
self.title_widget = TitleWidget(title,self)
self.buttons = QDialogButtonBox()
self.buttons.addButton( QDialogButtonBox.Ok)
self.buttons.addButton( QDialogButtonBox.Cancel)
self.thinfont = QFont()
if configuration.font_select:
self.thinfont.setPointSize(self.thinfont.pointSize()*2)
self.scene = QGraphicsScene()
self.scene.selectionChanged.connect(self.selectionChanged)
self.view = QGraphicsView(self)
self.view.setRenderHint(QPainter.Antialiasing)
self.view.setScene(self.scene)
top_layout = QVBoxLayout()
top_layout.addWidget(self.title_widget)
top_layout.addWidget(self.view)
top_layout.addWidget(self.buttons)
self.setLayout(top_layout) # QWidget takes ownership of the layout
self.buttons.accepted.connect(self.save_and_accept)
self.buttons.rejected.connect(self.cancel)
self.initial_state = None
self.selected_state = None
self._drawNodes(self.scene,self.selected_state,self.initial_state)
def testIt(self):
scene = QGraphicsScene()
minSize = QSizeF(30, 100)
prefSize = QSizeF(210, 100)
maxSize = QSizeF(300, 100)
a = createItem(minSize, prefSize, maxSize, "A")
b = createItem(minSize, prefSize, maxSize, "B")
c = createItem(minSize, prefSize, maxSize, "C")
d = createItem(minSize, prefSize, maxSize, "D")
view = QGraphicsView(scene)
view.show()
self.app.exec_()
def testQGraphicsProxyWidget(self):
scene = QGraphicsScene()
proxy = QGraphicsProxyWidget(None, Qt.Window)
widget = QLabel('Widget')
proxy.setWidget(widget)
proxy.setCacheMode(QGraphicsItem.DeviceCoordinateCache)
scene.addItem(proxy)
scene.setSceneRect(scene.itemsBoundingRect())
view = QGraphicsView(scene)
view.setRenderHints(QPainter.Antialiasing|QPainter.SmoothPixmapTransform)
view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate)
view.show()
timer = QTimer.singleShot(100, self.app.quit)
self.app.exec_()
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
quitAct = QAction("&Quit", self, shortcut="Ctrl+Q",
statusTip="Exit the application", triggered=self.close)
addAct = QAction("&Add", self, statusTip="Add a block", triggered=self.addBlock)
fileMenu = self.menuBar().addMenu("&File")
fileMenu.addAction(addAct)
fileMenu.addSeparator()
fileMenu.addAction(quitAct)
self.setWindowTitle("Node Editor")
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.view.setRenderHint(QPainter.Antialiasing)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self)
self.nodesEditor.install(self.scene)
block = QNEBlock(None)
self.scene.addItem(block)
block.addPort("test", 0, QNEPort.NamePort)
block.addPort("TestBlock", 0, QNEPort.TypePort)
block.addInputPort("in1");
block.addInputPort("in2");
block.addInputPort("in3");
block.addOutputPort("out1");
block.addOutputPort("out2");
block.addOutputPort("out3");
block = block.clone()
block.setPos(150,0)
block = block.clone()
block.setPos(150,150)
def testCustomProxyWidget(self):
scene = QGraphicsScene()
proxy = CustomProxy(None, Qt.Window)
widget = QLabel('Widget')
proxy.setWidget(widget)
proxy.setCacheMode(QGraphicsItem.DeviceCoordinateCache)
scene.addItem(proxy)
scene.setSceneRect(scene.itemsBoundingRect())
view = QGraphicsView(scene)
view.setRenderHints(QPainter.Antialiasing|QPainter.SmoothPixmapTransform)
view.setViewportUpdateMode(QGraphicsView.BoundingRectViewportUpdate)
view.show()
timer = QTimer.singleShot(100, self.app.quit)
self.app.exec_()
class QColorOnSetBrush(UsesQApplication):
'''Test case for passing a QColor directly to setBrush'''
def setUp(self):
#Acquire resources
super(QColorOnSetBrush, self).setUp()
self.scene = QGraphicsScene()
poly = QPolygonF()
self.item = self.scene.addPolygon(poly)
self.color = QColor('black')
def tearDown(self):
#Release resources
del self.color
del self.item
del self.scene
super(QColorOnSetBrush, self).tearDown()
def testQColor(self):
#QGraphicsAbstractShapeItem.setBrush(QColor)
self.item.setBrush(self.color)
self.assertEqual(QBrush(self.color), self.item.brush())
class ItemRetrieve(UsesQApplication):
'''Tests for QGraphicsScene item retrieval methods'''
qapplication = True
def setUp(self):
#Acquire resources
super(ItemRetrieve, self).setUp()
self.scene = QGraphicsScene()
self.topleft = QGraphicsRectItem(0, 0, 100, 100)
self.topright = QGraphicsRectItem(100, 0, 100, 100)
self.bottomleft = QGraphicsRectItem(0, 100, 100, 100)
self.bottomright = QGraphicsRectItem(100, 100, 100, 100)
self.items = [
self.topleft, self.topright, self.bottomleft, self.bottomright
]
for item in self.items:
self.scene.addItem(item)
def tearDown(self):
#Release resources
del self.scene
super(ItemRetrieve, self).tearDown()
def testItems(self):
#QGraphicsScene.items()
items = self.scene.items()
for i in items:
self.assertTrue(i in self.items)
def testItemAt(self):
#QGraphicsScene.itemAt()
self.assertEqual(self.scene.itemAt(50, 50), self.topleft)
self.assertEqual(self.scene.itemAt(150, 50), self.topright)
self.assertEqual(self.scene.itemAt(50, 150), self.bottomleft)
self.assertEqual(self.scene.itemAt(150, 150), self.bottomright)
class ItemRetrieve(UsesQApplication):
"""Tests for QGraphicsScene item retrieval methods"""
qapplication = True
def setUp(self):
# Acquire resources
super(ItemRetrieve, self).setUp()
self.scene = QGraphicsScene()
self.topleft = QGraphicsRectItem(0, 0, 100, 100)
self.topright = QGraphicsRectItem(100, 0, 100, 100)
self.bottomleft = QGraphicsRectItem(0, 100, 100, 100)
self.bottomright = QGraphicsRectItem(100, 100, 100, 100)
self.items = [self.topleft, self.topright, self.bottomleft, self.bottomright]
for item in self.items:
self.scene.addItem(item)
def tearDown(self):
# Release resources
del self.scene
super(ItemRetrieve, self).tearDown()
def testItems(self):
# QGraphicsScene.items()
items = self.scene.items()
for i in items:
self.assertTrue(i in self.items)
def testItemAt(self):
# QGraphicsScene.itemAt()
self.assertEqual(self.scene.itemAt(50, 50), self.topleft)
self.assertEqual(self.scene.itemAt(150, 50), self.topright)
self.assertEqual(self.scene.itemAt(50, 150), self.bottomleft)
self.assertEqual(self.scene.itemAt(150, 150), self.bottomright)
class SceneManager():
def __init__(self, graphicsView):
self.scene = QGraphicsScene()
self.scene.setSceneRect(0,0,SCENE_WIDTH,SCENE_HEIGHT)
graphicsView.setScene(self.scene)
# handles physics involved in collisiions/detection
self.cm = collisionManager()
# add object to simulation scene (given parameters)
# input: 'values' contains (x,y,x_vel,y_vel,mass,radius)
def addItem(self,param):
values = self.decode(param)
item = Ball(values[0],values[1],values[4],values[5])
item.set_velocity(values[2],values[3])
self.scene.addItem(item)
def addItems(self,items):
for item in items:
values = self.decode(item)
ball_obj = Ball(values[0],values[1],values[4],values[5])
ball_obj.set_velocity(values[2],values[3])
self.scene.addItem(ball_obj)
# translate parameters received by TCP
def decode(self,msg):
delims = ['r','m','yv','xv','y','x']
values = []
# traverses delimeters to extract values
for i in range(len(delims)):
index = msg.index(delims[i]) # search for delimeter
arg = msg[index + len(delims[i]) :] # extract value
values.append(int(float(arg))) # store value
msg = msg[:index] # reduce message left to parse
values.reverse()
return values
# access all items in the simulation scene
def getItems(self):
return self.scene.items()
def deleteItems(self):
return self.scene.clear()
def getItemsForTCP(self):
items = self.scene.items()
tcp_list = []
for item in items:
tcp_list.append(str(item))
return tcp_list
# determine an item's next location
def next_move(self,item):
# check whether any ball-to-ball collisions will occur
collisions = self.cm.if_ball_collision(item,self.getItems())
if (len(collisions) > 0): # colllision identified
# print '\nInside next_move()'
# print ('Item: ' + str(item) + ' List: ' )#+ str(collisions))
# for ball in collisions:
# print str(ball) #DEBUG
# obtain velocities so that balls just collide
delta_x, delta_y = self.cm.vel_to_ball(item,collisions[0])
# delta_x = item.x_vel
# delta_y = item.y_vel
self.cm.ball_to_ball(item,collisions[0])
else:
# determine if a wall will be hit in the next move
hit_wall = self.cm.if_wall_collision(item,SCENE_HEIGHT,SCENE_WIDTH)
if (hit_wall != 'NONE'): # if wall collision will occur
# determine displacement left to collide with wall
delta_x, delta_y = self.cm.vel_to_wall(item,hit_wall,SCENE_HEIGHT,SCENE_WIDTH)
# set object's velocity after impacting the wall
self.cm.ball_to_wall(item,hit_wall)
else:
#keep the ball in the same trajectory
delta_x = item.x_vel
delta_y = item.y_vel
# next x/y destination of the item in LOCAL coordinates
# require the offsets (-item.x_start and -item.y_start)
# given the fact that the item.x_pos and item.y_pos values
# represent locations in global coordinates
next_x = item.x_pos + delta_x - item.x_start
next_y = item.y_pos + delta_y - item.y_start
return next_x,next_y
def setUp(self):
#Acquire resources
super(AddItem, self).setUp()
self.scene = QGraphicsScene()
def setUp(self):
super(ReferenceCount, self).setUp()
self.scene = QGraphicsScene()
def setUp(self):
#Acquire resources
# PyQt4 doesn't accept a QRect as argument to constructor
self.scene = QGraphicsScene(0, 200, 150, 175)
class AddItem(UsesQApplication):
'''Tests for QGraphicsScene.add*'''
qapplication = True
def setUp(self):
#Acquire resources
super(AddItem, self).setUp()
self.scene = QGraphicsScene()
# While the scene does not inherits from QWidget, requires
# an application to make the internals work.
def tearDown(self):
#Release resources
del self.scene
super(AddItem, self).tearDown()
def testEllipse(self):
#QGraphicsScene.addEllipse
item = self.scene.addEllipse(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsEllipseItem))
def testLine(self):
#QGraphicsScene.addLine
item = self.scene.addLine(100, 100, 200, 200)
self.assertTrue(isinstance(item, QGraphicsLineItem))
def testPath(self):
#QGraphicsScene.addPath
item = self.scene.addPath(QPainterPath())
self.assertTrue(isinstance(item, QGraphicsPathItem))
def testPixmap(self):
#QGraphicsScene.addPixmap
item = self.scene.addPixmap(QPixmap())
self.assertTrue(isinstance(item, QGraphicsPixmapItem))
def testPolygon(self):
#QGraphicsScene.addPolygon
points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
item = self.scene.addPolygon(QPolygonF(points))
self.assertTrue(isinstance(item, QGraphicsPolygonItem))
def testRect(self):
#QGraphicsScene.addRect
item = self.scene.addRect(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsRectItem))
def testSimpleText(self):
#QGraphicsScene.addSimpleText
item = self.scene.addSimpleText('Monty Python 42')
self.assertTrue(isinstance(item, QGraphicsSimpleTextItem))
def testText(self):
#QGraphicsScene.addText
item = self.scene.addText('Monty Python 42')
self.assertTrue(isinstance(item, QGraphicsTextItem))
def testWidget(self):
#QGraphicsScene.addWidget
# XXX: printing some X11 error when using under PyQt4
item = self.scene.addWidget(QPushButton())
self.assertTrue(isinstance(item, QGraphicsProxyWidget))
def setUp(self):
# Acquire resources
super(AddItem, self).setUp()
self.scene = QGraphicsScene()
class AddItem(UsesQApplication):
"""Tests for QGraphicsScene.add*"""
qapplication = True
def setUp(self):
# Acquire resources
super(AddItem, self).setUp()
self.scene = QGraphicsScene()
# While the scene does not inherits from QWidget, requires
# an application to make the internals work.
def tearDown(self):
# Release resources
del self.scene
super(AddItem, self).tearDown()
def testEllipse(self):
# QGraphicsScene.addEllipse
item = self.scene.addEllipse(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsEllipseItem))
def testLine(self):
# QGraphicsScene.addLine
item = self.scene.addLine(100, 100, 200, 200)
self.assertTrue(isinstance(item, QGraphicsLineItem))
def testPath(self):
# QGraphicsScene.addPath
item = self.scene.addPath(QPainterPath())
self.assertTrue(isinstance(item, QGraphicsPathItem))
def testPixmap(self):
# QGraphicsScene.addPixmap
item = self.scene.addPixmap(QPixmap())
self.assertTrue(isinstance(item, QGraphicsPixmapItem))
def testPolygon(self):
# QGraphicsScene.addPolygon
points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
item = self.scene.addPolygon(QPolygonF(points))
self.assertTrue(isinstance(item, QGraphicsPolygonItem))
def testRect(self):
# QGraphicsScene.addRect
item = self.scene.addRect(100, 100, 100, 100)
self.assertTrue(isinstance(item, QGraphicsRectItem))
def testSimpleText(self):
# QGraphicsScene.addSimpleText
item = self.scene.addSimpleText("Monty Python 42")
self.assertTrue(isinstance(item, QGraphicsSimpleTextItem))
def testText(self):
# QGraphicsScene.addText
item = self.scene.addText("Monty Python 42")
self.assertTrue(isinstance(item, QGraphicsTextItem))
def testWidget(self):
# QGraphicsScene.addWidget
# XXX: printing some X11 error when using under PyQt4
item = self.scene.addWidget(QPushButton())
self.assertTrue(isinstance(item, QGraphicsProxyWidget))
# This is the magic:
def paint(self, painter, option, widget=None):
painter_inverted = QPainter()
brect= QGraphicsProxyWidget.boundingRect(self)
invertedColor = QImage(brect.width(),brect.height(),QImage.Format_RGB32)
painter_inverted.begin(invertedColor)
QGraphicsProxyWidget.paint(self,painter_inverted, option, widget)
painter_inverted.end()
painter.drawImage(0,0,invertedColor.rgbSwapped())
if __name__ == '__main__':
app = QApplication(sys.argv)
app.setApplicationName("tete")
scene = QGraphicsScene()
media = Phonon.MediaObject()
video = Phonon.VideoWidget()
Phonon.createPath(media, video)
proxy = CustomProxy()
proxy.setWidget(video)
rect = proxy.boundingRect()
#proxy.setPos(0, 0)
#proxy.show()
scene.addItem(proxy)
media.setCurrentSource("/home/amit/Videos/Kung Fu Panda 3 (2015) 1080p R6 [DayT.se].mp4")
media.play()
class NetworkView(QAbstractItemView):
'''
The NetworkView is sort of a wrapper around the Qt Canvas concept
with QGraphicsView and QGraphicsScene.
It inherits from QAbstractItemView to live in the world of Qt Model
View Controller (MVC). Basically, it is there to bring these two worlds
together. (Why the hell Qt does not provide something like this, I
don't know.)
NetworkView handles the usual model update methods (e.g. dataChanged)
and handles selection changes between the model-based views and the
internal GraphicsView. (Which itself is not a QGraphicsView directly but
a simple wrapper to support mousewheel zooming, etc.)
@param parent: The standard Qt parent
@type parent: QWidget (probably ;))
@param controller: The network controller that belongs to this view.
@type controller: ModelController
@since: 2010-04-12
'''
__author__ = "Moritz Wade"
__contact__ = "*****@*****.**"
__copyright__ = "Zuse Institute Berlin 2010"
def __init__(self, parent=None, controller=None):
'''
The initialization instanciates the GraphicsView/GraphicsScene
combo. It sets up reference variables for handling nodes
and edges of the graph. It register various signals.
'''
super(NetworkView, self).__init__(parent)
self.parent = parent # maybe needed later?
self.controller = controller
self.graphicsView = GraphicsView(self)
self.graphicsScene = QGraphicsScene(self)
self.graphicsView.setScene(self.graphicsScene)
self.modelSelectionInProgress = False
self.registerSignals()
self.statusBar = None # can be set from the outside
self.species = None
self.reactions = None
# TODO: check these
self.nodes = []
self.edges = []
self.speciesNodesMapper = {}
self.reactionEdgesMapper = {}
self.lock = QReadWriteLock()
layout = QHBoxLayout()
layout.addWidget(self.graphicsView, 1)
self.setLayout(layout)
def draw_graph(self, graph):
'''
Invokes a layout algorithm of the networkx package in another
Thread and calls self.redraw.
@param graph: A network graph
@type graph: Graph
@todo: See, that threading works correctly.
'''
logging.info("Drawing network...")
self.graph = graph
self.speciesNodesMapper = {}
self.draw() # draws the current positions (may be None), creates Nodes/Edges
# just testing a progress dialog
# progressDialog = QProgressDialog()
# progressDialog.setMinimum(0)
# progressDialog.setMaximum(100)
# progressDialog.show()
#
# for i in range(100):
# time.sleep(0.2)
# progressDialog.setValue(i)
self.positions = {}
# time.sleep(0.5)
#
# dummyThread = DummyProgressThread()
# #dummyThread = DummyThrobberThread()
# progressService = ProgressBarService()
# progressService.connectToThread(dummyThread)
# dummyThread.start()
# doing the layout
threadedLayouter = LayoutThread(self.lock, self)
self.connect(threadedLayouter, SIGNAL("finished(bool)"), self.layout_finished)
#threadedLayouter.finished.connect(self.layout_finished)
threadedLayouter.initialize(self.graph, "spring", self.positions)
threadedLayouter.start()
# threadedLayouter.run() # for debugging purposes
def createEdge(self, graphEdge):
'''
Creates a graphical Edge given a networkX edge (which is basically
a 3-tuple with ([reactants],[products],{"reaction": wrappedReaction}).
'''
species1 = graphEdge[0]
species2 = graphEdge[1]
try:
reactionWrapper = graphEdge[2]["reaction"]
except:
pass
sourceNode = self.speciesNodesMapper[species1]
targetNode = self.speciesNodesMapper[species2]
edge = Edge(sourceNode, targetNode, self.graphicsScene, wrappedObject=reactionWrapper)
sourceNode.edges.append(edge)
if reactionWrapper is not None:
self.reactionEdgesMapper[edge] = reactionWrapper # 1 Edge corresponds to exactly 1 Reaction
if reactionWrapper in self.reactionEdgesMapper: # 1 Reaction can correspond to n Edges
self.reactionEdgesMapper[reactionWrapper].append(edge)
else:
self.reactionEdgesMapper[reactionWrapper] = [edge]
return edge
def draw(self):
self.isRedrawing = True
self.graphicsScene.clear()
#
self.nodes = []
self.speciesNodesMapper = {}
self.reactionEdgesMapper = {}
for speciesOrHyperNode in self.graph.nodes():
(x, y) = speciesOrHyperNode.Position
node = self.createNode(speciesOrHyperNode, x, y)
for edge in self.graph.edges(data=True):
edge = self.createEdge(edge)
logging.info("Finished drawing network...")
self.isRedrawing = False
def layout_finished(self, finished):
'''
This is a slot. It calls self.redraw if finished = true.
@param finished: Tells if the layout is finished.
@type finished: bool
'''
if finished:
for speciesOrHyperNode in self.graph.nodes(): # setting the updated coordinates
(xRel, yRel) = self.positions[speciesOrHyperNode]
x = xRel * self.width() / 2
y = yRel * self.height() / 2
speciesOrHyperNode.Position = (x, y)
self.redraw()
def redraw(self):
'''
Rewrite of the previous redraw approach. It is based on the node positions
as stored in the SBMLEntitys' Position property.
Nodes and Edges are only created once (on drawGraph). They are not
recreated here, only repositioned.
@since: 2010-09-20
'''
self.isRedrawing = True
for speciesOrHyperNode in self.graph.nodes():
(x, y) = speciesOrHyperNode.Position
if speciesOrHyperNode not in self.speciesNodesMapper:
logging.debug("Encountered unknown node while redrawing. %s" % speciesOrHyperNode)
continue
#self.addNode(speciesOrHyperNode)
node = self.speciesNodesMapper[speciesOrHyperNode]
node.isRedrawing = True
node.setPos(x, y)
node.isRedrawing = False
self.isRedrawing = False
def addNode(self, node):
if type(node) is not HyperEdgeNode:
x = self.width()/2
y = self.height()/2
else:
x, y = self.calculateHyperNodePosition(node)
self.createNode(node, x, y)
def calculateHyperNodePosition(self, hyperNode):
'''
Gets the positions of node adjacent to the given hyper node
and calculates an average position between them.
'''
#edges = self.graph.edges([hyperNode], data=True)
neighbors = self.graph.neighbors(hyperNode)
x = 0
y = 0
for neighbor in neighbors:
currX,currY = neighbor.Position
x += currX
y += currY
x /= len(neighbors)
y /= len(neighbors)
return x,y
def registerSignals(self):
'''
Connects all the necessary signals.
'''
self.connect(self.graphicsScene, SIGNAL("selectionChanged()"), self.sceneSelectionChanged)
def findItemInModel(self, item):
'''
Finds the QModelIndex corresponding to the given
item. The given item is a Node or Edge.
@param item: The item to find
@type item: SBMLEntity
@return: The model index of the given item
@rtype: QModelIndex
'''
sbmlEntity = item.wrappedObject
map = self.model().modelIndexToEntityMap
if map is None:
return
if sbmlEntity in map:
index = map[sbmlEntity]
return index
#print sbmlEntity
def changeViewSelection(self, modelSelection, state):
'''
Gets a Qt selection object and works through it to
set the given selection state on all the affected items.
This syncs the selection (Model)View -> NetworkView
@param modelSelection: A Qt selection consisting of indexes
@todo: Include type of modelSelection in doc
'''
#self.setSelectedAll(False)
for selectionRange in modelSelection:
#logging.debug("Creating View selection for %s items" % len(selectionRange.indexes()))
for itemIndex in selectionRange.indexes():
item = itemIndex.internalPointer()
#if item in self.speciesNodesMapper:
try: # fast then "if item in"
self.speciesNodesMapper[item].setSelected(state)
except:
try:
#elif item in self.reactionEdgesMapper:
# item will be a list for all the Edges that this Reaction
# potentially has (in case of hyper-edge)
for edge in self.reactionEdgesMapper[item]:
edge.setSelected(state)
except:
pass
#return itemIndex, edge, selectionRange, item
def setSelectedAll(self, state):
self.setSelectedNodes(state)
self.setSelectedEdges(state)
def setSelectedNodes(self, state):
for node in self.nodes:
node.setSelected(state)
def setSelectedEdges(self, state):
for edge in self.edges:
edge.setSelected(state)
def createNode(self, speciesOrHyperNode, x, y):
speciesOrHyperNode.Position = (x,y)
node = Node(position=(x, y), scene=self.graphicsScene, wrappedObject=speciesOrHyperNode)
self.speciesNodesMapper[speciesOrHyperNode] = node
self.speciesNodesMapper[node] = speciesOrHyperNode
if type(speciesOrHyperNode) == HyperEdgeNode:
self.speciesNodesMapper[speciesOrHyperNode.Reaction] = node # to get from the wrapped reaction to the node
# self.connect(speciesOrDummyNode, SIGNAL("PositionChanged"), lambda who = speciesOrDummyNode: self.nodeMoved(who))
return node
def removeSpeciesNode(self, sbmlEntity):
# logging.debug("Remove Entity from NetworkView: %s\n\ID: %s" % (sbmlEntity.Item, sbmlEntity.getId()))
if sbmlEntity in self.speciesNodesMapper:
node = self.speciesNodesMapper[sbmlEntity]
self.graphicsScene.removeItem(node)
self.speciesNodesMapper.pop(sbmlEntity)
# else:
# print "Remove Entity from NetworkView: %s\n\ID: %s" % (sbmlEntity.Item, sbmlEntity.getId())
# print
def removeReaction(self, reaction):
#for reaction in reactions:
if not self.reactionEdgesMapper.has_key(reaction):
return
edges = self.reactionEdgesMapper[reaction]
for edge in edges:
# handle nodes that are connected to this Edge
nodes = [edge.sourceNode, edge.targetNode]
for node in nodes:
if edge in node.edges:
node.edges.remove(edge)
# handle the Edge itself
self.graphicsScene.removeItem(edge)
self.reactionEdgesMapper.pop(edge) # just remove it from the dict
self.reactionEdgesMapper.pop(reaction)
# reactions are also linked to hypernodes; clear this, too
if reaction in self.speciesNodesMapper.keys():
hyperNode = self.speciesNodesMapper[reaction]
self.speciesNodesMapper.pop(reaction)
self.graphicsScene.removeItem((hyperNode))
self.speciesNodesMapper.pop(hyperNode)
def addReaction(self, edge):
self.createEdge(edge)
def updateNodesAndEdges(self):
'''
Works through the graph and adds missing Nodes and Edges.
@since: 2010-10-04
'''
# handling Nodes
for node in self.graph.nodes():
if node not in self.speciesNodesMapper.keys():
self.addNode(node)
# handling Edges
for edge in self.graph.edges(data=True):
reaction = edge[2]["reaction"]
if not reaction:
continue
if reaction not in self.reactionEdgesMapper.keys():
# reaction is totally new, just create this edge
self.createEdge(edge)
else:
# have to check if the reaction is already there, but maybe
# with a different edge (happens in the case of hyper-edges)
reactionEdges = self.reactionEdgesMapper[reaction]
edgeIsThere = False
for existingEdge in reactionEdges: # we have to compare based on source and target nodes
source = existingEdge.sourceNode.wrappedObject
target = existingEdge.targetNode.wrappedObject
reactionSource = edge[0]
reactionTarget = edge[1]
# if reactionSource == source:
# logging.debug("Source is identical")
# if reactionTarget == target:
# logging.debug("Target is identical")
# if reactionSource == source and reactionTarget == target:
# logging.debug("Edge is there")
if reactionSource == source and reactionTarget == target:
edgeIsThere = True
if not edgeIsThere:
self.createEdge(edge)
# some debugging info
# logging.debug("About to add an edge between...")
# logging.debug("Source: %s" % edge[0].getId())
# logging.debug("Target: %s" % edge[1].getId())
# if edge not in reactionEdges:
# edge = self.createEdge(edge)
#==========================================================================
# Slots
#==========================================================================
@Slot()
def sceneSelectionChanged(self):
'''
C++: void sceneSelectionChanged()
This syncs the selection
NetworkView -> (Model)View
To do this it uses the QSelectionModel that the ModelController
has as a reference.
'''
if self.modelSelectionInProgress: # don't create an selection update loop
return
itemSelection = QItemSelection()
selectionModel = self.controller.getGlobalSelectionModel()
if not self.graphicsScene:
return
selectedItems = self.graphicsScene.selectedItems()
#logging.debug("Creating model selection for %s items" % len(selectedItems))
for item in selectedItems:
index = self.findItemInModel(item)
if index is not None:
itemSelection.select(index, index)
selectionModel.select(itemSelection, QItemSelectionModel.ClearAndSelect | QItemSelectionModel.Rows)
@Slot(QModelIndex)
def update(self, index):
'''
C++: void update(const QModelIndex&)
'''
pass
@Slot(QModelIndex, QModelIndex)
def dataChanged(self, topLeftIndex, bottomRightIndex):
'''
C++: void dataChanged(const QModelIndex&,const QModelIndex&)
Gets the range of changed indexes and updates all the nodes
therein.
Currently, only the topLeftIndex is used. The possible span
of indexes is ignored.
@todo: Use whole span of indexes.
@param topLeftIndex: Starting index
@type topLeftIndex: QModelIndex
@param bottomRightIndex: Ending index
@type bottomRightIndex: QModelIndex
'''
item = topLeftIndex.internalPointer()
if item is None:
return
if item not in self.speciesNodesMapper:
return
node = self.speciesNodesMapper[item]
if node is None:
return
node.redraw()
#==========================================================================
# base class methods that we override to enable the binding of the model
# (selection, etc.) to the GraphicsView
#==========================================================================
def selectionChanged(self, currentSelection, previousSelection):
self.modelSelectionInProgress = True
self.changeViewSelection(previousSelection, False)
self.changeViewSelection(currentSelection, True)
self.modelSelectionInProgress = False
#==========================================================================
# abstract base classes that need to be implemented but that we don't
# really use (maybe some of them later?)
#==========================================================================
def indexAt(self, point):
return QModelIndex()
def moveCursor(self, cursorAction, modifiers):
return QModelIndex()
def verticalOffset(self):
return 0
def horizontalOffset(self):
return 0
def visualRegionForSelection(self, selection):
return QRegion()
def visualRect(self, index):
return QRect()
def scrollTo(self, index, hint):
pass
def setUp(self):
super(ReferenceCount, self).setUp()
self.scene = QGraphicsScene()
from PySide.QtGui import (QApplication, QGraphicsView, QGraphicsScene,
QMainWindow, QPixmap, QPainter)
from PySide.QtCore import Qt
import sys
if __name__ == '__main__':
app = QApplication(sys.argv)
scene = QGraphicsScene()
view = QGraphicsView(scene)
view.scale(15, 15)
pix = QPixmap(200, 50)
pix.fill(Qt.white)
p = QPainter(pix)
p.setPen(Qt.black)
#p.setBrush(Qt.red)
for i in range(1, 10):
p.drawEllipse(0, 0, i, i)
p.translate(i+5, 0)
p.end()
pixItem = scene.addPixmap(pix)
win = QMainWindow()
win.setCentralWidget(view)
win.resize(700, 200)
win.show()
sys.exit(app.exec_())
class DrawableCameraView(QGraphicsView):
overlay_changed = Signal()
def __init__(self, camera=None, scene=None):
super(DrawableCameraView, self).__init__()
if scene is None:
self.scene = QGraphicsScene()
else:
self.scene = scene
self.setScene(self.scene)
self.camera = camera
self.pixmapitem = None
# Overlay variables
self.overlay_visible = False
self.overlay_images = None
def set_overlays(self, filenames):
if not self.overlay_images:
self.overlay_filenames = filenames
self.overlay_images = [None] * len(filenames)
self.overlay_index = len(filenames) # Start at live video
else:
old_fnames = self.overlay_filenames
old_images = self.overlay_images
new_fnames = filenames
new_images = [None] * len(new_fnames)
for old_fname in old_fnames:
i = new_fnames.index(old_fname)
new_images[i] = old_images[i]
self.overlay_filenames = new_fnames
self.overlay_images = new_images
self.overlay_index = len(filenames)
def hide_overlay(self):
if self.overlay_index < len(self.overlay_images):
self.overlay_images[self.overlay_index].hide()
self.overlay_visible = False
def show_overlay(self):
if self.overlay_index < len(self.overlay_images):
self.overlay_images[self.overlay_index].show()
self.overlay_visible = True
def keyPressEvent(self, event):
key = event.key()
if self.overlay_visible and self.overlay_images is not None:
# We have overlays active and visible
if key == Qt.Key_Left:
self.overlay_index -= 1
if self.overlay_index < 0:
self.overlay_index = 0 # No wraparound
else:
self.overlay_changed.emit()
if self.overlay_images[self.overlay_index] is None:
self._add_overlay_image()
self.overlay_images[self.overlay_index].show()
if self.overlay_index+1 < len(self.overlay_images):
self.overlay_images[self.overlay_index+1].hide()
elif key == Qt.Key_Right:
self.overlay_index += 1
if self.overlay_index > len(self.overlay_images):
self.overlay_index = len(self.overlay_images)
else:
if self.overlay_index < len(self.overlay_images):
self.overlay_images[self.overlay_index].show()
self.overlay_changed.emit()
self.overlay_images[self.overlay_index-1].hide()
else:
# Pass event through to base class
QGraphicsView.keyPressEvent(self, event)
def _add_overlay_image(self):
fname = self.overlay_filenames[self.overlay_index]
self.overlay_images[self.overlay_index] = self.scene.addPixmap(QPixmap(fname))
self.overlay_images[self.overlay_index].setZValue(10000000)
def start_video(self, framerate=None):
timer = QTimer()
timer.timeout.connect(self._wait_for_frame)
self.camera.start_live_video(framerate)
timer.start(int(1000/self.camera.framerate))
self.timer = timer
self.centerOn(self.camera.width/2, self.camera.height/2)
def stop_video(self):
self.camera.stop_live_video()
self.timer.stop()
def _wait_for_frame(self):
if self.camera.wait_for_frame(0):
data = self.camera.image_buffer()
bpl = self.camera.bytes_per_line
format = QImage.Format_RGB32
image = QImage(data, self.camera.width, self.camera.height, bpl, format)
if self.pixmapitem is None:
self.pixmapitem = self.scene.addPixmap(QPixmap.fromImage(image))
else:
self.pixmapitem.setPixmap(QPixmap.fromImage(image))
def setupUi(self):
scene = QGraphicsScene(self)
self.view = QGraphicsView(scene, self)
self.view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.view.setVisible(True)
self.view.setInteractive(True)
self.createPixmapIcon()
self.mapWidget = MapWidget(self.mapManager)
scene.addItem(self.mapWidget)
self.mapWidget.setCenter(QGeoCoordinate(-8.1, -34.95))
self.mapWidget.setZoomLevel(5)
#...
self.slider = QSlider(Qt.Vertical, self)
self.slider.setTickInterval(1)
self.slider.setTickPosition(QSlider.TicksBothSides)
self.slider.setMaximum(self.mapManager.maximumZoomLevel())
self.slider.setMinimum(self.mapManager.minimumZoomLevel())
self.slider.valueChanged[int].connect(self.sliderValueChanged)
self.mapWidget.zoomLevelChanged[float].connect(self.mapZoomLevelChanged)
mapControlLayout = QVBoxLayout()
self.mapWidget.mapTypeChanged.connect(self.mapTypeChanged)
for mapType in self.mapWidget.supportedMapTypes():
radio = QRadioButton(self)
if mapType == QGraphicsGeoMap.StreetMap:
radio.setText('Street')
elif mapType == QGraphicsGeoMap.SatelliteMapDay:
radio.setText('Sattelite')
elif mapType == QGraphicsGeoMap.SatelliteMapNight:
radio.setText('Sattelite - Night')
elif mapType == QGraphicsGeoMap.TerrainMap:
radio.setText('Terrain')
if mapType == self.mapWidget.mapType():
radio.setChecked(True)
radio.toggled[bool].connect(self.mapTypeToggled)
self.mapControlButtons.append(radio)
self.mapControlTypes.append(mapType)
mapControlLayout.addWidget(radio)
self.latitudeEdit = QLineEdit()
self.longitudeEdit = QLineEdit()
formLayout = QFormLayout()
formLayout.addRow('Latitude', self.latitudeEdit)
formLayout.addRow('Longitude', self.longitudeEdit)
self.captureCoordsButton = QToolButton()
self.captureCoordsButton.setText('Capture coordinates')
self.captureCoordsButton.setCheckable(True)
self.captureCoordsButton.toggled[bool].connect(
self.mapWidget.setMouseClickCoordQuery)
self.mapWidget.coordQueryResult.connect(self.updateCoords)
self.setCoordsButton = QPushButton()
self.setCoordsButton.setText('Set coordinates')
self.setCoordsButton.clicked.connect(self.setCoordsClicked)
buttonLayout = QHBoxLayout()
buttonLayout.addWidget(self.captureCoordsButton)
buttonLayout.addWidget(self.setCoordsButton)
coordControlLayout = QVBoxLayout()
coordControlLayout.addLayout(formLayout)
coordControlLayout.addLayout(buttonLayout)
widget = QWidget(self)
layout = QGridLayout()
layout.setRowStretch(0, 1)
layout.setRowStretch(1, 0)
topLayout = QGridLayout()
bottomLayout = QGridLayout()
topLayout.setColumnStretch(0, 0)
topLayout.setColumnStretch(1, 1)
bottomLayout.setColumnStretch(0, 0)
bottomLayout.setColumnStretch(1, 1)
topLayout.addWidget(self.slider, 0, 0)
topLayout.addWidget(self.view, 0, 1)
bottomLayout.addLayout(mapControlLayout, 0, 0)
bottomLayout.addLayout(coordControlLayout, 0, 1)
layout.addLayout(topLayout, 0, 0)
layout.addLayout(bottomLayout, 1, 0)
self.layout = layout
widget.setLayout(layout)
self.setCentralWidget(widget)
self.view.setContextMenuPolicy(Qt.CustomContextMenu)
self.view.customContextMenuRequested.connect(self.customContextMenuRequest)
class QNEMainWindow(QMainWindow):
def __init__(self, parent):
super(QNEMainWindow, self).__init__(parent)
self.logger = logging.getLogger("zne")
self.logger.setLevel(logging.DEBUG)
self.setMinimumSize(560,360)
self.setWindowTitle("ZOCP Node Editor")
self.setWindowIcon(QIcon('assets/icon.png'))
self.scene = QGraphicsScene(self)
self.view = QGraphicsView(self)
self.view.setScene(self.scene)
self.setCentralWidget(self.view)
self.nodesEditor = QNodesEditor(self, self.scene, self.view)
self.nodesEditor.onAddConnection = self.onAddConnection
self.nodesEditor.onRemoveConnection = self.onRemoveConnection
self.nodesEditor.onBlockMoved = self.onBlockMoved
self.scale = 1
self.installActions()
self.initZOCP()
self.nodes = {}
self.pendingSubscribers = {}
QTimer.singleShot(250, lambda: self.scene.invalidate())
def closeEvent(self, *args):
self.zocp.stop()
def installActions(self):
quitAct = QAction("&Quit", self, shortcut="Ctrl+Q",
statusTip="Exit the application", triggered=self.close)
if zconfigmanager_found:
openAct = QAction("&Open...", self, shortcut="Ctrl+O",
statusTip="Restore the network from a saved description", triggered=self.readNetwork)
saveAct = QAction("&Save...", self, shortcut="Ctrl+S",
statusTip="Write a description of the network to disc", triggered=self.writeNetwork)
fileMenu = self.menuBar().addMenu("&File")
if zconfigmanager_found:
fileMenu.addAction(openAct)
fileMenu.addAction(saveAct)
fileMenu.addSeparator()
fileMenu.addAction(quitAct)
# for shortcuts
self.view.addAction(quitAct)
selectAllAct = QAction("Select &All", self, shortcut="Ctrl+A",
triggered=self.nodesEditor.selectAll)
selectNoneAct = QAction("Select &None", self, shortcut="Ctrl+D",
triggered=self.nodesEditor.selectNone)
selectInverseAct = QAction("Select &Inverse", self, shortcut="Ctrl+I",
triggered=self.nodesEditor.selectInverse)
deleteSelectedAct = QAction("&Delete Selected", self, shortcut="Del",
triggered=self.nodesEditor.deleteSelected)
editMenu = self.menuBar().addMenu("&Edit")
editMenu.addAction(selectAllAct)
editMenu.addAction(selectNoneAct)
editMenu.addAction(selectInverseAct)
editMenu.addSeparator()
editMenu.addAction(deleteSelectedAct)
self.view.addAction(selectAllAct)
self.view.addAction(selectNoneAct)
self.view.addAction(selectInverseAct)
self.view.addAction(deleteSelectedAct)
zoomInAct = QAction("Zoom &In", self, shortcut="Ctrl++",
triggered=self.zoomIn)
zoomOutAct = QAction("Zoom &Out", self, shortcut="Ctrl+-",
triggered=self.zoomOut)
zoomResetAct = QAction("&Reset Zoom", self, shortcut="Ctrl+0",
triggered=self.zoomReset)
viewMenu = self.menuBar().addMenu("&View")
viewMenu.addAction(zoomInAct)
viewMenu.addAction(zoomOutAct)
viewMenu.addSeparator()
viewMenu.addAction(zoomResetAct)
self.view.addAction(zoomInAct)
self.view.addAction(zoomOutAct)
self.view.addAction(zoomResetAct)
aboutAct = QAction("&About", self,
triggered=self.about)
helpMenu = self.menuBar().addMenu("&Help")
helpMenu.addAction(aboutAct)
self.view.addAction(aboutAct)
def writeNetwork(self):
fileName, filter = QFileDialog.getSaveFileName(self,
caption="Save as",
filter="ZOCP (*.zocp);;JSON (*.json)",
selectedFilter="ZOCP (*.zocp)")
if fileName:
# setup ZOCP node, and run it for some time to discover
# the current network
configManager = ZConfigManagerNode("ConfigManager@%s" % socket.gethostname())
configManager.discover(0.5)
# write network description to file
configManager.write(fileName)
# shut down ZOCP node
configManager.stop()
configManager = None
def readNetwork(self):
fileName, filter = QFileDialog.getOpenFileName(self,
caption="Open",
filter="All files (*.*);;ZOCP (*.zocp);;JSON (*.json)",
selectedFilter="ZOCP (*.zocp)")
if fileName:
# setup ZOCP node, and run it for some time to discover
# the current network
configManager = ZConfigManagerNode("ConfigManager@%s" % socket.gethostname())
configManager.discover(0.5)
# write network description to file
configManager.read(fileName)
# shut down ZOCP node
configManager.stop()
configManager = None
def zoomIn(self):
if self.scale < 4:
self.scale *= 1.2
self.view.scale(1.2, 1.2)
def zoomOut(self):
if self.scale > 0.1:
self.scale /= 1.2
self.view.scale(1/1.2, 1/1.2)
def zoomReset(self):
self.scale = 1
self.view.setTransform(QTransform())
def about(self):
QMessageBox.about(self, "About ZOCP Node Editor",
"<p>A monitor/editor for ZOCP nodes, implemented in PySide"
"(Python/Qt4).</p><p>ZOCP is the Z25 Orchestration Control "
"Protocol, currently in development at "
"<a href='http://z25.org'>z25.org</a></p>")
#########################################
# Node editor callbacks
#########################################
def onAddConnection(self, connection, fromPort, toPort):
fromBlock = fromPort.block()
toBlock = toPort.block()
emitter = fromPort.portName()
emit_peer = fromBlock.uuid()
receiver = toPort.portName()
recv_peer = toBlock.uuid()
self.zocp.signal_subscribe(recv_peer, receiver, emit_peer, emitter)
self.logger.debug("added subscription from %s on %s to %s on %s" %
(receiver, fromBlock.name(), emitter, toBlock.name()))
def onRemoveConnection(self, connection, fromPort, toPort):
fromBlock = fromPort.block()
toBlock = toPort.block()
emitter = fromPort.portName()
emit_peer = fromBlock.uuid()
receiver = toPort.portName()
recv_peer = toBlock.uuid()
self.zocp.signal_unsubscribe(recv_peer, receiver, emit_peer, emitter)
self.logger.debug("removed subscription from %s on %s to %s on %s" %
(receiver, fromBlock.name(), emitter, toBlock.name()))
def onBlockMoved(self, block):
pos = block.pos()
peer = block.uuid()
self.zocp.peer_set(peer, {"_zne_position": [pos.x(), pos.y()]})
def onChangeValue(self, block, port, value):
self.logger.debug("block %s port %s changed to %s" % (block.name(), port.portName(), value))
peer = block.uuid()
portName = port.portName()
capability = self.zocp.peers_capabilities[peer][portName]
typeHint = capability["typeHint"]
validValue = True
if typeHint == "int":
try:
value = int(float(value))
except:
validValue = False
elif typeHint == "flt":
try:
value = float(value.strip())
except:
validValue = False
elif typeHint == "percent":
try:
value = float(value.strip())
except:
validValue = False
elif typeHint == "bool":
value = (value.strip().lower() in ["true", "yes", "1"])
elif typeHint == "string":
pass
elif typeHint.startswith("vec" ) and typeHint.endswith("f") and len(typeHint) == 5:
try:
value = [float(num) for num in ((value.strip())[1:-1]).split(",")]
except:
validValue = False
if validValue:
if len(value) != int(typeHint[3]):
validValue = False
if validValue:
self.zocp.peer_set(peer, {portName: {"value": value}})
port.setValue(str(value))
else:
port.setValue(str(capability["value"]))
#########################################
# ZOCP implementation
#########################################
def initZOCP(self):
self.zocp = ZOCP("ZOCP Node Editor@%s" % socket.gethostname())
self.notifier = QSocketNotifier(
self.zocp.inbox.getsockopt(zmq.FD),
QSocketNotifier.Read)
self.notifier.setEnabled(True)
self.notifier.activated.connect(self.onZOCPEvent)
self.zocp.on_peer_enter = self.onPeerEnter
self.zocp.on_peer_exit = self.onPeerExit
self.zocp.on_peer_modified = self.onPeerModified
self.zocp.on_peer_signaled = self.onPeerSignaled
self.zocp.start()
zl = logging.getLogger("zocp")
zl.setLevel(logging.INFO)
def onZOCPEvent(self):
self.zocp.run_once(0)
def onPeerEnter(self, peer, name, *args, **kwargs):
# Subscribe to any and all value changes
self.zocp.signal_subscribe(self.zocp.uuid(), None, peer, None)
# Add named block; ports are not known at this point
block = QNEBlock(None)
self.scene.addItem(block)
block.setNodeEditor(self)
block.setName(name)
block.setUuid(peer)
block.addPort(name, False, False, QNEPort.NamePort)
block.setVisible(False)
node = {}
node["block"] = block
node["ports"] = dict()
self.nodes[peer.hex] = node
def onPeerExit(self, peer, name, *args, **kwargs):
# Unsubscribe from value changes
self.zocp.signal_unsubscribe(self.zocp.uuid(), None, peer, None)
# Remove block
if peer.hex in self.nodes:
self.nodes[peer.hex]["block"].delete()
self.nodes.pop(peer.hex)
def onPeerModified(self, peer, name, data, *args, **kwargs):
for portname in data:
portdata = data[portname]
if portname not in self.nodes[peer.hex]["ports"]:
if "access" in portdata:
hasInput = "s" in portdata["access"]
hasOutput = "e" in portdata["access"]
port = self.nodes[peer.hex]["block"].addPort(portname, hasInput, hasOutput)
port.setValue(str(portdata["value"]))
port.setAccess(str(portdata["access"]))
self.nodes[peer.hex]["ports"][portname] = port
else:
# Metadata, not a capability
if portname == "_zne_position":
block = self.nodes[peer.hex]["block"]
block.setPos(portdata[0], portdata[1])
else:
port = self.nodes[peer.hex]["ports"][portname]
if "value" in portdata:
port.setValue(str(portdata["value"]))
if "access" in portdata:
port.setAccess(str(portdata["access"]))
if "subscribers" in portdata:
self.updateSubscribers(port, portdata["subscribers"])
if len(self.nodes[peer.hex]["ports"]) > 0:
self.nodes[peer.hex]["block"].setVisible(True)
self.updatePendingSubscribers(peer)
def onPeerSignaled(self, peer, name, data, *args, **kwargs):
[portname, value] = data
if portname in self.nodes[peer.hex]["ports"]:
self.nodes[peer.hex]["ports"][portname].setValue(str(value))
def updateSubscribers(self, port, subscribers):
port1 = port.outputPort
# check if any current connections should be removed
connections = port.connections()
for connection in connections:
if(connection.port1() == port1):
port2 = connection.port2()
else:
port2 = connection.port1()
if not port2.isOutput():
subscriber = [port2.block().uuid().hex, port2.portName()]
if subscriber not in subscribers:
connection.delete()
self.logger.debug("peer removed subscription from %s on %s to %s on %s" %
(port1.portName(), port1.block().name(), port2.portName(), port2.block().name()))
# add new connections for new subscriptions
for subscriber in subscribers:
[uuid, portname] = subscriber
if uuid in self.nodes:
node = self.nodes[uuid]
if portname in node["ports"]:
port2 = node["ports"][portname]
if not port2.isConnected(port1):
# create new connection
connection = QNEConnection(None)
connection.setPort1(port1)
connection.setPort2(port2)
connection.updatePosFromPorts()
connection.updatePath()
self.scene.addItem(connection)
self.logger.debug("peer added subscription from %s on %s to %s on %s" %
(port1.portName(), port1.block().name(), port2.portName(), port2.block().name()))
continue
# if the connection could not be made yet, add it to a list of
# pending subscriber-connections
if uuid not in self.pendingSubscribers:
self.pendingSubscribers[uuid] = []
self.pendingSubscribers[uuid].append([port1, portname])
def updatePendingSubscribers(self, peer):
if peer.hex in self.pendingSubscribers:
for subscriber in self.pendingSubscribers[peer.hex]:
[port1, portname] = subscriber
if peer.hex in self.nodes and portname in self.nodes[peer.hex]["ports"]:
port2 = self.nodes[peer.hex]["ports"][portname]
connection = QNEConnection(None)
connection.setPort1(port1)
connection.setPort2(port2)
connection.updatePosFromPorts()
connection.updatePath()
self.scene.addItem(connection)
else:
# TODO: handle case where port is still not available
pass
self.pendingSubscribers.pop(peer.hex)