1 files changed, 153 insertions, 0 deletions
diff --git a/examples/tutorial/t8.py b/examples/tutorial/t8.py
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+#!/usr/bin/env python
+
+#############################################################################
+##
+## 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 tutorial 8
+
+
+import sys
+from PySide2 import QtCore, QtGui, QtWidgets
+
+
+class LCDRange(QtWidgets.QWidget):
+    valueChanged = QtCore.Signal(int)
+    def __init__(self, parent=None):
+        QtWidgets.QWidget.__init__(self, parent)
+
+        lcd = QtWidgets.QLCDNumber(2)
+        self.slider = QtWidgets.QSlider(QtCore.Qt.Horizontal)
+        self.slider.setRange(0, 99)
+        self.slider.setValue(0)
+
+        self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
+                     lcd, QtCore.SLOT("display(int)"))
+        self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
+                     self, QtCore.SIGNAL("valueChanged(int)"))
+
+        layout = QtWidgets.QVBoxLayout()
+        layout.addWidget(lcd)
+        layout.addWidget(self.slider)
+        self.setLayout(layout)
+
+        self.setFocusProxy(self.slider)
+
+    def value(self):
+        return self.slider.value()
+
+    @QtCore.Slot(int)
+    def setValue(self, value):
+        self.slider.setValue(value)
+
+    def setRange(self, minValue, maxValue):
+        if minValue < 0 or maxValue > 99 or minValue > maxValue:
+            QtCore.qWarning("LCDRange.setRange(%d, %d)\n"
+                    "\tRange must be 0..99\n"
+                    "\tand minValue must not be greater than maxValue" % (minValue, maxValue))
+            return
+
+        self.slider.setRange(minValue, maxValue)
+
+
+class CannonField(QtWidgets.QWidget):
+    angleChanged = QtCore.Signal(int)
+    def __init__(self, parent=None):
+        QtWidgets.QWidget.__init__(self, parent)
+
+        self.currentAngle = 45
+        self.setPalette(QtGui.QPalette(QtGui.QColor(250, 250, 200)))
+        self.setAutoFillBackground(True)
+
+    def angle(self):
+        return self.currentAngle
+
+    @QtCore.Slot(int)
+    def setAngle(self, angle):
+        if angle < 5:
+            angle = 5
+        if angle > 70:
+            angle = 70;
+        if self.currentAngle == angle:
+            return
+        self.currentAngle = angle
+        self.update()
+        self.emit(QtCore.SIGNAL("angleChanged(int)"), self.currentAngle)
+
+    def paintEvent(self, event):
+        painter = QtGui.QPainter(self)
+        painter.drawText(200, 200, "Angle = %d" % self.currentAngle)
+
+
+class MyWidget(QtWidgets.QWidget):
+    def __init__(self, parent=None):
+        QtWidgets.QWidget.__init__(self, parent)
+
+        quit = QtWidgets.QPushButton("Quit")
+        quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))
+
+        self.connect(quit, QtCore.SIGNAL("clicked()"),
+                     QtWidgets.qApp, QtCore.SLOT("quit()"))
+
+        angle = LCDRange()
+        angle.setRange(5, 70)
+
+        cannonField = CannonField()
+
+        self.connect(angle, QtCore.SIGNAL("valueChanged(int)"),
+                     cannonField.setAngle)
+        self.connect(cannonField, QtCore.SIGNAL("angleChanged(int)"),
+                     angle.setValue)
+
+        gridLayout = QtWidgets.QGridLayout()
+        gridLayout.addWidget(quit, 0, 0)
+        gridLayout.addWidget(angle, 1, 0)
+        gridLayout.addWidget(cannonField, 1, 1, 2, 1)
+        gridLayout.setColumnStretch(1, 10)
+        self.setLayout(gridLayout)
+
+        angle.setValue(60)
+        angle.setFocus()
+
+
+app = QtWidgets.QApplication(sys.argv)
+widget = MyWidget()
+widget.setGeometry(100, 100, 500, 355)
+widget.show()
+sys.exit(app.exec_())