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196 lines
7.6 KiB
Python
196 lines
7.6 KiB
Python
#!/usr/bin/env python
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#############################################################################
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##
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## Copyright (C) 2013 Riverbank Computing Limited.
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## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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## All rights reserved.
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##
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## This file is part of the examples of PyQt.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## You may use this file under the terms of the BSD license as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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## the names of its contributors may be used to endorse or promote
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## products derived from this software without specific prior written
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## permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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##
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#############################################################################
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from PyQt5.QtCore import pyqtSignal, Qt
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from PyQt5.QtWidgets import (QApplication, QBoxLayout, QCheckBox, QComboBox,
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QDial, QGridLayout, QGroupBox, QHBoxLayout, QLabel, QScrollBar,
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QSlider, QSpinBox, QStackedWidget, QWidget)
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class SlidersGroup(QGroupBox):
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valueChanged = pyqtSignal(int)
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def __init__(self, orientation, title, parent=None):
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super(SlidersGroup, self).__init__(title, parent)
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self.slider = QSlider(orientation)
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self.slider.setFocusPolicy(Qt.StrongFocus)
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self.slider.setTickPosition(QSlider.TicksBothSides)
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self.slider.setTickInterval(10)
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self.slider.setSingleStep(1)
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self.scrollBar = QScrollBar(orientation)
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self.scrollBar.setFocusPolicy(Qt.StrongFocus)
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self.dial = QDial()
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self.dial.setFocusPolicy(Qt.StrongFocus)
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self.slider.valueChanged.connect(self.scrollBar.setValue)
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self.scrollBar.valueChanged.connect(self.dial.setValue)
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self.dial.valueChanged.connect(self.slider.setValue)
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self.dial.valueChanged.connect(self.valueChanged)
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if orientation == Qt.Horizontal:
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direction = QBoxLayout.TopToBottom
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else:
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direction = QBoxLayout.LeftToRight
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slidersLayout = QBoxLayout(direction)
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slidersLayout.addWidget(self.slider)
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slidersLayout.addWidget(self.scrollBar)
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slidersLayout.addWidget(self.dial)
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self.setLayout(slidersLayout)
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def setValue(self, value):
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self.slider.setValue(value)
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def setMinimum(self, value):
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self.slider.setMinimum(value)
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self.scrollBar.setMinimum(value)
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self.dial.setMinimum(value)
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def setMaximum(self, value):
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self.slider.setMaximum(value)
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self.scrollBar.setMaximum(value)
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self.dial.setMaximum(value)
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def invertAppearance(self, invert):
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self.slider.setInvertedAppearance(invert)
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self.scrollBar.setInvertedAppearance(invert)
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self.dial.setInvertedAppearance(invert)
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def invertKeyBindings(self, invert):
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self.slider.setInvertedControls(invert)
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self.scrollBar.setInvertedControls(invert)
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self.dial.setInvertedControls(invert)
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class Window(QWidget):
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def __init__(self):
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super(Window, self).__init__()
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self.horizontalSliders = SlidersGroup(Qt.Horizontal,
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"Horizontal")
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self.verticalSliders = SlidersGroup(Qt.Vertical, "Vertical")
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self.stackedWidget = QStackedWidget()
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self.stackedWidget.addWidget(self.horizontalSliders)
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self.stackedWidget.addWidget(self.verticalSliders)
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self.createControls("Controls")
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self.horizontalSliders.valueChanged.connect(self.verticalSliders.setValue)
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self.verticalSliders.valueChanged.connect(self.valueSpinBox.setValue)
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self.valueSpinBox.valueChanged.connect(self.horizontalSliders.setValue)
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layout = QHBoxLayout()
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layout.addWidget(self.controlsGroup)
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layout.addWidget(self.stackedWidget)
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self.setLayout(layout)
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self.minimumSpinBox.setValue(0)
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self.maximumSpinBox.setValue(20)
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self.valueSpinBox.setValue(5)
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self.setWindowTitle("Sliders")
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def createControls(self, title):
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self.controlsGroup = QGroupBox(title)
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minimumLabel = QLabel("Minimum value:")
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maximumLabel = QLabel("Maximum value:")
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valueLabel = QLabel("Current value:")
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invertedAppearance = QCheckBox("Inverted appearance")
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invertedKeyBindings = QCheckBox("Inverted key bindings")
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self.minimumSpinBox = QSpinBox()
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self.minimumSpinBox.setRange(-100, 100)
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self.minimumSpinBox.setSingleStep(1)
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self.maximumSpinBox = QSpinBox()
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self.maximumSpinBox.setRange(-100, 100)
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self.maximumSpinBox.setSingleStep(1)
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self.valueSpinBox = QSpinBox()
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self.valueSpinBox.setRange(-100, 100)
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self.valueSpinBox.setSingleStep(1)
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orientationCombo = QComboBox()
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orientationCombo.addItem("Horizontal slider-like widgets")
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orientationCombo.addItem("Vertical slider-like widgets")
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orientationCombo.activated.connect(self.stackedWidget.setCurrentIndex)
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self.minimumSpinBox.valueChanged.connect(self.horizontalSliders.setMinimum)
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self.minimumSpinBox.valueChanged.connect(self.verticalSliders.setMinimum)
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self.maximumSpinBox.valueChanged.connect(self.horizontalSliders.setMaximum)
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self.maximumSpinBox.valueChanged.connect(self.verticalSliders.setMaximum)
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invertedAppearance.toggled.connect(self.horizontalSliders.invertAppearance)
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invertedAppearance.toggled.connect(self.verticalSliders.invertAppearance)
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invertedKeyBindings.toggled.connect(self.horizontalSliders.invertKeyBindings)
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invertedKeyBindings.toggled.connect(self.verticalSliders.invertKeyBindings)
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controlsLayout = QGridLayout()
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controlsLayout.addWidget(minimumLabel, 0, 0)
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controlsLayout.addWidget(maximumLabel, 1, 0)
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controlsLayout.addWidget(valueLabel, 2, 0)
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controlsLayout.addWidget(self.minimumSpinBox, 0, 1)
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controlsLayout.addWidget(self.maximumSpinBox, 1, 1)
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controlsLayout.addWidget(self.valueSpinBox, 2, 1)
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controlsLayout.addWidget(invertedAppearance, 0, 2)
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controlsLayout.addWidget(invertedKeyBindings, 1, 2)
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controlsLayout.addWidget(orientationCombo, 3, 0, 1, 3)
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self.controlsGroup.setLayout(controlsLayout)
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if __name__ == '__main__':
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import sys
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app = QApplication(sys.argv)
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window = Window()
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window.show()
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sys.exit(app.exec_())
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