1 files changed, 156 insertions, 0 deletions
diff --git a/examples/widgets/layouts/flowlayout.py b/examples/widgets/layouts/flowlayout.py
new file mode 100755
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+++ b/examples/widgets/layouts/flowlayout.py
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+#!/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."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""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_())