126 lines
4.4 KiB
Python
126 lines
4.4 KiB
Python
#!/usr/bin/env python
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#
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# The MIT License (MIT)
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#
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# Copyright (c) <2022-Present> <Alex Huszagh>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the 'Software'), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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'''
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slider
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======
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Example showing how to add ticks to a QSlider. Note that this does
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not work with stylesheets, so it's merely an example of how to
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get customized styling behavior with a QSlider.
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'''
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import shared
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import sys
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parser = shared.create_parser()
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args, unknown = shared.parse_args(parser)
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QtCore, QtGui, QtWidgets = shared.import_qt(args)
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compat = shared.get_compat_definitions(args)
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colors = shared.get_colors(args, compat)
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class Slider(QtWidgets.QSlider):
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'''QSlider with a custom paint event.'''
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def __init__(self, *args, **kwds):
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super().__init__(*args, **kwds)
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def paintEvent(self, event):
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'''Override the paint event to ensure the ticks are painted.'''
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painter = QtWidgets.QStylePainter(self)
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options = QtWidgets.QStyleOptionSlider()
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self.initStyleOption(options)
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style = self.style()
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handle = style.subControlRect(
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compat.CC_Slider,
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options,
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compat.SC_SliderHandle,
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self,
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)
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interval = self.tickInterval() or self.pageStep()
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position = self.tickPosition()
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if position != compat.NoTicks and interval != 0:
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minimum = self.minimum()
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maximum = self.maximum()
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painter.setPen(colors.TickColor)
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for i in range(minimum, maximum + interval, interval):
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percent = (i - minimum) / (maximum - minimum + 1) + 0.005
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width = (self.width() - handle.width()) + handle.width() / 2
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x = int(percent * width)
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h = 4
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if position == compat.TicksBothSides or position == compat.TicksAbove:
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y = self.rect().top()
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painter.drawLine(x, y, x, y + h)
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if position == compat.TicksBothSides or position == compat.TicksBelow:
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y = self.rect().bottom()
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painter.drawLine(x, y, x, y - h)
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options.subControls = compat.SC_SliderGroove
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painter.drawComplexControl(compat.CC_Slider, options)
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options.subControls = compat.SC_SliderHandle
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painter.drawComplexControl(compat.CC_Slider, options)
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class Ui:
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'''Main class for the user interface.'''
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def setup(self, MainWindow):
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MainWindow.setObjectName('MainWindow')
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MainWindow.resize(1068, 824)
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self.centralwidget = QtWidgets.QWidget(MainWindow)
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self.centralwidget.setObjectName('centralwidget')
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self.layout = QtWidgets.QVBoxLayout(self.centralwidget)
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self.layout.setObjectName('layout')
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self.layout.setAlignment(compat.AlignHCenter)
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MainWindow.setCentralWidget(self.centralwidget)
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self.slider = Slider(self.centralwidget)
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self.slider.setOrientation(compat.Horizontal)
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self.slider.setTickInterval(5)
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self.slider.setTickPosition(compat.TicksAbove)
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self.slider.setObjectName('slider')
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self.layout.addWidget(self.slider)
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def main():
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'Application entry point'
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app, window = shared.setup_app(args, unknown, compat)
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# setup ui
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ui = Ui()
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ui.setup(window)
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window.setWindowTitle('QSlider with Ticks.')
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shared.set_stylesheet(args, app, compat)
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return shared.exec_app(args, app, window, compat)
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if __name__ == '__main__':
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sys.exit(main())
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