diff options
Diffstat (limited to 'examples/graphicsview/elasticnodes.py')
| -rwxr-xr-x | examples/graphicsview/elasticnodes.py | 92 |
1 files changed, 56 insertions, 36 deletions
diff --git a/examples/graphicsview/elasticnodes.py b/examples/graphicsview/elasticnodes.py index bd29b7a..9e37656 100755 --- a/examples/graphicsview/elasticnodes.py +++ b/examples/graphicsview/elasticnodes.py @@ -2,39 +2,59 @@ ############################################################################# ## -## Copyright (C) 2006-2006 Trolltech ASA. All rights reserved. +## Copyright (C) 2013 Riverbank Computing Limited. +## Copyright (C) 2016 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ ## -## This file is part of the example classes of the Qt Toolkit. +## This file is part of the PySide examples of the Qt Toolkit. ## -## Licensees holding a valid Qt License Agreement may use this file in -## accordance with the rights, responsibilities and obligations -## contained therein. Please consult your licensing agreement or -## contact sales@trolltech.com if any conditions of this licensing -## agreement are not clear to you. +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: ## -## Further information about Qt licensing is available at: -## http://www.trolltech.com/products/qt/licensing.html or by -## contacting info@trolltech.com. +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. ## -## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE -## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ ## ############################################################################# import sys import weakref import math -from PySide2 import QtCore, QtGui +from PySide2 import QtCore, QtGui, QtWidgets -class Edge(QtGui.QGraphicsItem): +class Edge(QtWidgets.QGraphicsItem): Pi = math.pi TwoPi = 2.0 * Pi - Type = QtGui.QGraphicsItem.UserType + 2 + Type = QtWidgets.QGraphicsItem.UserType + 2 def __init__(self, sourceNode, destNode): - QtGui.QGraphicsItem.__init__(self) + QtWidgets.QGraphicsItem.__init__(self) self.arrowSize = 10.0 self.sourcePoint = QtCore.QPointF() @@ -122,17 +142,17 @@ class Edge(QtGui.QGraphicsItem): painter.drawPolygon(QtGui.QPolygonF([line.p2(), destArrowP1, destArrowP2])) -class Node(QtGui.QGraphicsItem): - Type = QtGui.QGraphicsItem.UserType + 1 +class Node(QtWidgets.QGraphicsItem): + Type = QtWidgets.QGraphicsItem.UserType + 1 def __init__(self, graphWidget): - QtGui.QGraphicsItem.__init__(self) + QtWidgets.QGraphicsItem.__init__(self) self.graph = weakref.ref(graphWidget) self.edgeList = [] self.newPos = QtCore.QPointF() - self.setFlag(QtGui.QGraphicsItem.ItemIsMovable) - self.setFlag(QtGui.QGraphicsItem.ItemSendsGeometryChanges) + self.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable) + self.setFlag(QtWidgets.QGraphicsItem.ItemSendsGeometryChanges) self.setCacheMode(self.DeviceCoordinateCache) self.setZValue(-1) @@ -207,7 +227,7 @@ class Node(QtGui.QGraphicsItem): painter.drawEllipse(-7, -7, 20, 20) gradient = QtGui.QRadialGradient(-3, -3, 10) - if option.state & QtGui.QStyle.State_Sunken: + if option.state & QtWidgets.QStyle.State_Sunken: gradient.setCenter(3, 3) gradient.setFocalPoint(3, 3) gradient.setColorAt(1, QtGui.QColor(QtCore.Qt.yellow).lighter(120)) @@ -221,36 +241,36 @@ class Node(QtGui.QGraphicsItem): painter.drawEllipse(-10, -10, 20, 20) def itemChange(self, change, value): - if change == QtGui.QGraphicsItem.ItemPositionChange: + if change == QtWidgets.QGraphicsItem.ItemPositionChange: for edge in self.edgeList: edge().adjust() self.graph().itemMoved() - return QtGui.QGraphicsItem.itemChange(self, change, value) + return QtWidgets.QGraphicsItem.itemChange(self, change, value) def mousePressEvent(self, event): self.update() - QtGui.QGraphicsItem.mousePressEvent(self, event) + QtWidgets.QGraphicsItem.mousePressEvent(self, event) def mouseReleaseEvent(self, event): self.update() - QtGui.QGraphicsItem.mouseReleaseEvent(self, event) + QtWidgets.QGraphicsItem.mouseReleaseEvent(self, event) -class GraphWidget(QtGui.QGraphicsView): +class GraphWidget(QtWidgets.QGraphicsView): def __init__(self): - QtGui.QGraphicsView.__init__(self) + QtWidgets.QGraphicsView.__init__(self) self.timerId = 0 - scene = QtGui.QGraphicsScene(self) - scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex) + scene = QtWidgets.QGraphicsScene(self) + scene.setItemIndexMethod(QtWidgets.QGraphicsScene.NoIndex) scene.setSceneRect(-200, -200, 400, 400) self.setScene(scene) - self.setCacheMode(QtGui.QGraphicsView.CacheBackground) + self.setCacheMode(QtWidgets.QGraphicsView.CacheBackground) self.setRenderHint(QtGui.QPainter.Antialiasing) - self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse) - self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter) + self.setTransformationAnchor(QtWidgets.QGraphicsView.AnchorUnderMouse) + self.setResizeAnchor(QtWidgets.QGraphicsView.AnchorViewCenter) node1 = Node(self) node2 = Node(self) @@ -321,7 +341,7 @@ class GraphWidget(QtGui.QGraphicsView): if isinstance(item, Node): item.setPos(-150 + QtCore.qrand() % 300, -150 + QtCore.qrand() % 300) else: - QtGui.QGraphicsView.keyPressEvent(self, event) + QtWidgets.QGraphicsView.keyPressEvent(self, event) def timerEvent(self, event): @@ -356,7 +376,7 @@ class GraphWidget(QtGui.QGraphicsView): gradient = QtGui.QLinearGradient(sceneRect.topLeft(), sceneRect.bottomRight()) gradient.setColorAt(0, QtCore.Qt.white) gradient.setColorAt(1, QtCore.Qt.lightGray) - painter.fillRect(rect.intersect(sceneRect), QtGui.QBrush(gradient)) + painter.fillRect(rect.intersected(sceneRect), QtGui.QBrush(gradient)) painter.setBrush(QtCore.Qt.NoBrush) painter.drawRect(sceneRect) @@ -385,7 +405,7 @@ class GraphWidget(QtGui.QGraphicsView): if __name__ == "__main__": - app = QtGui.QApplication(sys.argv) + app = QtWidgets.QApplication(sys.argv) QtCore.qsrand(QtCore.QTime(0,0,0).secsTo(QtCore.QTime.currentTime())) widget = GraphWidget() |