3 files changed, 462 insertions, 0 deletions
diff --git a/examples/widgets/layouts/basiclayouts.py b/examples/widgets/layouts/basiclayouts.py
new file mode 100755
index 000000000..03f3315d5
--- /dev/null
+++ b/examples/widgets/layouts/basiclayouts.py
@@ -0,0 +1,135 @@
+#!/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/basiclayout example from Qt v5.x"""
+
+from PySide2 import QtCore, QtGui, QtWidgets
+
+
+class Dialog(QtWidgets.QDialog):
+    NumGridRows = 3
+    NumButtons = 4
+
+    def __init__(self):
+        super(Dialog, self).__init__()
+
+        self.createMenu()
+        self.createHorizontalGroupBox()
+        self.createGridGroupBox()
+        self.createFormGroupBox()
+
+        bigEditor = QtWidgets.QTextEdit()
+        bigEditor.setPlainText("This widget takes up all the remaining space "
+                "in the top-level layout.")
+
+        buttonBox = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
+
+        buttonBox.accepted.connect(self.accept)
+        buttonBox.rejected.connect(self.reject)
+
+        mainLayout = QtWidgets.QVBoxLayout()
+        mainLayout.setMenuBar(self.menuBar)
+        mainLayout.addWidget(self.horizontalGroupBox)
+        mainLayout.addWidget(self.gridGroupBox)
+        mainLayout.addWidget(self.formGroupBox)
+        mainLayout.addWidget(bigEditor)
+        mainLayout.addWidget(buttonBox)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Basic Layouts")
+
+    def createMenu(self):
+        self.menuBar = QtWidgets.QMenuBar()
+
+        self.fileMenu = QtWidgets.QMenu("&File", self)
+        self.exitAction = self.fileMenu.addAction("E&xit")
+        self.menuBar.addMenu(self.fileMenu)
+
+        self.exitAction.triggered.connect(self.accept)
+
+    def createHorizontalGroupBox(self):
+        self.horizontalGroupBox = QtWidgets.QGroupBox("Horizontal layout")
+        layout = QtWidgets.QHBoxLayout()
+
+        for i in range(Dialog.NumButtons):
+            button = QtWidgets.QPushButton("Button %d" % (i + 1))
+            layout.addWidget(button)
+
+        self.horizontalGroupBox.setLayout(layout)
+
+    def createGridGroupBox(self):
+        self.gridGroupBox = QtWidgets.QGroupBox("Grid layout")
+        layout = QtWidgets.QGridLayout()
+
+        for i in range(Dialog.NumGridRows):
+            label = QtWidgets.QLabel("Line %d:" % (i + 1))
+            lineEdit = QtWidgets.QLineEdit()
+            layout.addWidget(label, i + 1, 0)
+            layout.addWidget(lineEdit, i + 1, 1)
+
+        self.smallEditor = QtWidgets.QTextEdit()
+        self.smallEditor.setPlainText("This widget takes up about two thirds "
+                "of the grid layout.")
+
+        layout.addWidget(self.smallEditor, 0, 2, 4, 1)
+
+        layout.setColumnStretch(1, 10)
+        layout.setColumnStretch(2, 20)
+        self.gridGroupBox.setLayout(layout)
+
+    def createFormGroupBox(self):
+        self.formGroupBox = QtWidgets.QGroupBox("Form layout")
+        layout = QtWidgets.QFormLayout()
+        layout.addRow(QtWidgets.QLabel("Line 1:"), QtWidgets.QLineEdit())
+        layout.addRow(QtWidgets.QLabel("Line 2, long text:"), QtWidgets.QComboBox())
+        layout.addRow(QtWidgets.QLabel("Line 3:"), QtWidgets.QSpinBox())
+        self.formGroupBox.setLayout(layout)
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QtWidgets.QApplication(sys.argv)
+    dialog = Dialog()
+    sys.exit(dialog.exec_())
diff --git a/examples/widgets/layouts/dynamiclayouts.py b/examples/widgets/layouts/dynamiclayouts.py
new file mode 100644
index 000000000..e80b8c885
--- /dev/null
+++ b/examples/widgets/layouts/dynamiclayouts.py
@@ -0,0 +1,171 @@
+#!/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/dynamiclayouts example from Qt v5.x"""
+
+from PySide2.QtCore import Qt, QSize
+from PySide2.QtWidgets import (QApplication, QDialog, QLayout, QGridLayout,
+                               QMessageBox, QGroupBox, QSpinBox, QSlider,
+                               QProgressBar, QDial, QDialogButtonBox,
+                               QComboBox, QLabel)
+
+class Dialog(QDialog):
+    def __init__(self):
+        super(Dialog, self).__init__()
+
+        self.rotableWidgets = []
+
+        self.createRotableGroupBox()
+        self.createOptionsGroupBox()
+        self.createButtonBox()
+
+        mainLayout = QGridLayout()
+        mainLayout.addWidget(self.rotableGroupBox, 0, 0)
+        mainLayout.addWidget(self.optionsGroupBox, 1, 0)
+        mainLayout.addWidget(self.buttonBox, 2, 0)
+        mainLayout.setSizeConstraint(QLayout.SetMinimumSize)
+
+        self.mainLayout = mainLayout
+        self.setLayout(self.mainLayout)
+
+        self.setWindowTitle("Dynamic Layouts")
+
+    def rotateWidgets(self):
+        count = len(self.rotableWidgets)
+        if count % 2 == 1:
+            raise AssertionError("Number of widgets must be even")
+
+        for widget in self.rotableWidgets:
+            self.rotableLayout.removeWidget(widget)
+
+        self.rotableWidgets.append(self.rotableWidgets.pop(0))
+
+        for i in range(count//2):
+            self.rotableLayout.addWidget(self.rotableWidgets[count - i - 1], 0, i)
+            self.rotableLayout.addWidget(self.rotableWidgets[i], 1, i)
+
+
+    def buttonsOrientationChanged(self, index):
+        self.mainLayout.setSizeConstraint(QLayout.SetNoConstraint);
+        self.setMinimumSize(0, 0);
+
+        orientation = Qt.Orientation(int(self.buttonsOrientationComboBox.itemData(index)))
+
+        if orientation == self.buttonBox.orientation():
+            return
+
+        self.mainLayout.removeWidget(self.buttonBox);
+
+        spacing = self.mainLayout.spacing()
+
+        oldSizeHint = self.buttonBox.sizeHint() + QSize(spacing, spacing);
+        self.buttonBox.setOrientation(orientation)
+        newSizeHint = self.buttonBox.sizeHint() + QSize(spacing, spacing)
+
+        if orientation == Qt.Horizontal:
+            self.mainLayout.addWidget(self.buttonBox, 2, 0);
+            self.resize(self.size() + QSize(-oldSizeHint.width(), newSizeHint.height()))
+        else:
+            self.mainLayout.addWidget(self.buttonBox, 0, 3, 2, 1);
+            self.resize(self.size() + QSize(newSizeHint.width(), -oldSizeHint.height()))
+
+        self.mainLayout.setSizeConstraint(QLayout.SetDefaultConstraint)
+
+    def show_help(self):
+        QMessageBox.information(self, "Dynamic Layouts Help",
+                            "This example shows how to change layouts "
+                            "dynamically.")
+
+    def createRotableGroupBox(self):
+        self.rotableGroupBox = QGroupBox("Rotable Widgets")
+
+        self.rotableWidgets.append(QSpinBox())
+        self.rotableWidgets.append(QSlider())
+        self.rotableWidgets.append(QDial())
+        self.rotableWidgets.append(QProgressBar())
+        count = len(self.rotableWidgets)
+        for i in range(count):
+            self.rotableWidgets[i].valueChanged[int].\
+                connect(self.rotableWidgets[(i+1) % count].setValue)
+
+        self.rotableLayout = QGridLayout()
+        self.rotableGroupBox.setLayout(self.rotableLayout)
+
+        self.rotateWidgets()
+
+    def createOptionsGroupBox(self):
+        self.optionsGroupBox = QGroupBox("Options")
+
+        buttonsOrientationLabel = QLabel("Orientation of buttons:")
+
+        buttonsOrientationComboBox = QComboBox()
+        buttonsOrientationComboBox.addItem("Horizontal", Qt.Horizontal)
+        buttonsOrientationComboBox.addItem("Vertical", Qt.Vertical)
+        buttonsOrientationComboBox.currentIndexChanged[int].connect(self.buttonsOrientationChanged)
+
+        self.buttonsOrientationComboBox = buttonsOrientationComboBox
+
+        optionsLayout = QGridLayout()
+        optionsLayout.addWidget(buttonsOrientationLabel, 0, 0)
+        optionsLayout.addWidget(self.buttonsOrientationComboBox, 0, 1)
+        optionsLayout.setColumnStretch(2, 1)
+        self.optionsGroupBox.setLayout(optionsLayout)
+
+    def createButtonBox(self):
+        self.buttonBox = QDialogButtonBox()
+
+        closeButton = self.buttonBox.addButton(QDialogButtonBox.Close)
+        helpButton = self.buttonBox.addButton(QDialogButtonBox.Help)
+        rotateWidgetsButton = self.buttonBox.addButton("Rotate &Widgets", QDialogButtonBox.ActionRole)
+
+        rotateWidgetsButton.clicked.connect(self.rotateWidgets)
+        closeButton.clicked.connect(self.close)
+        helpButton.clicked.connect(self.show_help)
+
+
+if __name__ == '__main__':
+    import sys
+
+    app = QApplication(sys.argv)
+    dialog = Dialog()
+    dialog.exec_()
diff --git a/examples/widgets/layouts/flowlayout.py b/examples/widgets/layouts/flowlayout.py
new file mode 100755
index 000000000..75dfa4679
--- /dev/null
+++ b/examples/widgets/layouts/flowlayout.py
@@ -0,0 +1,156 @@
+#!/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_())