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Diffstat (limited to 'examples/widgets/graphicsview/anchorlayout.py')
| -rwxr-xr-x | examples/widgets/graphicsview/anchorlayout.py | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/examples/widgets/graphicsview/anchorlayout.py b/examples/widgets/graphicsview/anchorlayout.py new file mode 100755 index 000000000..86cea5cf8 --- /dev/null +++ b/examples/widgets/graphicsview/anchorlayout.py @@ -0,0 +1,126 @@ +#!/usr/bin/env python + +############################################################################# +## +## 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 PySide examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "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 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." +## +## $QT_END_LICENSE$ +## +############################################################################# + +from PySide2 import QtCore, QtGui, QtWidgets + + +def createItem(minimum, preferred, maximum, name): + w = QtWidgets.QGraphicsProxyWidget() + + w.setWidget(QtWidgets.QPushButton(name)) + w.setMinimumSize(minimum) + w.setPreferredSize(preferred) + w.setMaximumSize(maximum) + w.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred) + + return w + + +if __name__ == '__main__': + + import sys + + app = QtWidgets.QApplication(sys.argv) + + scene = QtWidgets.QGraphicsScene() + scene.setSceneRect(0, 0, 800, 480) + + minSize = QtCore.QSizeF(30, 100) + prefSize = QtCore.QSizeF(210, 100) + maxSize = QtCore.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") + e = createItem(minSize, prefSize, maxSize, "E") + f = createItem(QtCore.QSizeF(30, 50), QtCore.QSizeF(150, 50), maxSize, "F") + g = createItem(QtCore.QSizeF(30, 50), QtCore.QSizeF(30, 100), maxSize, "G") + + l = QtWidgets.QGraphicsAnchorLayout() + l.setSpacing(0) + + w = QtWidgets.QGraphicsWidget(None, QtCore.Qt.Window) + w.setPos(20, 20) + w.setLayout(l) + + # Vertical. + l.addAnchor(a, QtCore.Qt.AnchorTop, l, QtCore.Qt.AnchorTop) + l.addAnchor(b, QtCore.Qt.AnchorTop, l, QtCore.Qt.AnchorTop) + + l.addAnchor(c, QtCore.Qt.AnchorTop, a, QtCore.Qt.AnchorBottom) + l.addAnchor(c, QtCore.Qt.AnchorTop, b, QtCore.Qt.AnchorBottom) + l.addAnchor(c, QtCore.Qt.AnchorBottom, d, QtCore.Qt.AnchorTop) + l.addAnchor(c, QtCore.Qt.AnchorBottom, e, QtCore.Qt.AnchorTop) + + l.addAnchor(d, QtCore.Qt.AnchorBottom, l, QtCore.Qt.AnchorBottom) + l.addAnchor(e, QtCore.Qt.AnchorBottom, l, QtCore.Qt.AnchorBottom) + + l.addAnchor(c, QtCore.Qt.AnchorTop, f, QtCore.Qt.AnchorTop) + l.addAnchor(c, QtCore.Qt.AnchorVerticalCenter, f, QtCore.Qt.AnchorBottom) + l.addAnchor(f, QtCore.Qt.AnchorBottom, g, QtCore.Qt.AnchorTop) + l.addAnchor(c, QtCore.Qt.AnchorBottom, g, QtCore.Qt.AnchorBottom) + + # Horizontal. + l.addAnchor(l, QtCore.Qt.AnchorLeft, a, QtCore.Qt.AnchorLeft) + l.addAnchor(l, QtCore.Qt.AnchorLeft, d, QtCore.Qt.AnchorLeft) + l.addAnchor(a, QtCore.Qt.AnchorRight, b, QtCore.Qt.AnchorLeft) + + l.addAnchor(a, QtCore.Qt.AnchorRight, c, QtCore.Qt.AnchorLeft) + l.addAnchor(c, QtCore.Qt.AnchorRight, e, QtCore.Qt.AnchorLeft) + + l.addAnchor(b, QtCore.Qt.AnchorRight, l, QtCore.Qt.AnchorRight) + l.addAnchor(e, QtCore.Qt.AnchorRight, l, QtCore.Qt.AnchorRight) + l.addAnchor(d, QtCore.Qt.AnchorRight, e, QtCore.Qt.AnchorLeft) + + l.addAnchor(l, QtCore.Qt.AnchorLeft, f, QtCore.Qt.AnchorLeft) + l.addAnchor(l, QtCore.Qt.AnchorLeft, g, QtCore.Qt.AnchorLeft) + l.addAnchor(f, QtCore.Qt.AnchorRight, g, QtCore.Qt.AnchorRight) + + scene.addItem(w) + scene.setBackgroundBrush(QtCore.Qt.darkGreen) + + view = QtWidgets.QGraphicsView(scene) + view.show() + + sys.exit(app.exec_()) |