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-rw-r--r--examples/widgets/layouts/flowlayout.py155
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diff --git a/examples/widgets/layouts/flowlayout.py b/examples/widgets/layouts/flowlayout.py
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--- a/examples/widgets/layouts/flowlayout.py
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-
-############################################################################
-##
-## 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 Qt for Python 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."
-##
-## $QT_END_LICENSE$
-##
-#############################################################################
-
-"""PySide2 port of the widgets/layouts/flowlayout example from Qt v5.x"""
-
-from PySide2 import QtCore, QtGui, QtWidgets
-
-
-class Window(QtWidgets.QWidget):
- def __init__(self):
- super(Window, self).__init__()
-
- flowLayout = FlowLayout()
- flowLayout.addWidget(QtWidgets.QPushButton("Short"))
- flowLayout.addWidget(QtWidgets.QPushButton("Longer"))
- flowLayout.addWidget(QtWidgets.QPushButton("Different text"))
- flowLayout.addWidget(QtWidgets.QPushButton("More text"))
- flowLayout.addWidget(QtWidgets.QPushButton("Even longer button text"))
- self.setLayout(flowLayout)
-
- self.setWindowTitle("Flow Layout")
-
-
-class FlowLayout(QtWidgets.QLayout):
- def __init__(self, parent=None, margin=0, spacing=-1):
- super(FlowLayout, self).__init__(parent)
-
- if parent is not None:
- self.setMargin(margin)
-
- self.setSpacing(spacing)
-
- self.itemList = []
-
- def __del__(self):
- item = self.takeAt(0)
- while item:
- item = self.takeAt(0)
-
- def addItem(self, item):
- self.itemList.append(item)
-
- def count(self):
- return len(self.itemList)
-
- def itemAt(self, index):
- if index >= 0 and index < len(self.itemList):
- return self.itemList[index]
-
- return None
-
- def takeAt(self, index):
- if index >= 0 and index < len(self.itemList):
- return self.itemList.pop(index)
-
- return None
-
- def expandingDirections(self):
- return QtCore.Qt.Orientations(QtCore.Qt.Orientation(0))
-
- def hasHeightForWidth(self):
- return True
-
- def heightForWidth(self, width):
- height = self.doLayout(QtCore.QRect(0, 0, width, 0), True)
- return height
-
- def setGeometry(self, rect):
- super(FlowLayout, self).setGeometry(rect)
- self.doLayout(rect, False)
-
- def sizeHint(self):
- return self.minimumSize()
-
- def minimumSize(self):
- size = QtCore.QSize()
-
- for item in self.itemList:
- size = size.expandedTo(item.minimumSize())
-
- size += QtCore.QSize(2 * self.contentsMargins().top(), 2 * self.contentsMargins().top())
- return size
-
- def doLayout(self, rect, testOnly):
- x = rect.x()
- y = rect.y()
- lineHeight = 0
-
- for item in self.itemList:
- wid = item.widget()
- spaceX = self.spacing() + wid.style().layoutSpacing(QtWidgets.QSizePolicy.PushButton, QtWidgets.QSizePolicy.PushButton, QtCore.Qt.Horizontal)
- spaceY = self.spacing() + wid.style().layoutSpacing(QtWidgets.QSizePolicy.PushButton, QtWidgets.QSizePolicy.PushButton, QtCore.Qt.Vertical)
- nextX = x + item.sizeHint().width() + spaceX
- if nextX - spaceX > rect.right() and lineHeight > 0:
- x = rect.x()
- y = y + lineHeight + spaceY
- nextX = x + item.sizeHint().width() + spaceX
- lineHeight = 0
-
- if not testOnly:
- item.setGeometry(QtCore.QRect(QtCore.QPoint(x, y), item.sizeHint()))
-
- x = nextX
- lineHeight = max(lineHeight, item.sizeHint().height())
-
- return y + lineHeight - rect.y()
-
-
-if __name__ == '__main__':
-
- import sys
-
- app = QtWidgets.QApplication(sys.argv)
- mainWin = Window()
- mainWin.show()
- sys.exit(app.exec_())