You could subclass QSplitter
and reimplement its createHandle method. This would allow you to return an instance of your own QSplitterHandle class, with, say, a reimplemented paintEvent
.
Alternatively, and more simply, you could add buttons directly to an existing splitter handle, by setting your own layout on it.
Here's a basic demo to get you started (probably needs some tweaking to make it prettier):
PyQt5:
from PyQt5 import QtCore, QtWidgets
class Window(QtWidgets.QWidget):
def __init__(self):
super().__init__()
self.splitter = QtWidgets.QSplitter(self)
self.splitter.addWidget(QtWidgets.QTextEdit(self))
self.splitter.addWidget(QtWidgets.QTextEdit(self))
layout = QtWidgets.QVBoxLayout(self)
layout.addWidget(self.splitter)
handle = self.splitter.handle(1)
layout = QtWidgets.QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
button = QtWidgets.QToolButton(handle)
button.setArrowType(QtCore.Qt.LeftArrow)
button.clicked.connect(
lambda: self.handleSplitterButton(True))
layout.addWidget(button)
button = QtWidgets.QToolButton(handle)
button.setArrowType(QtCore.Qt.RightArrow)
button.clicked.connect(
lambda: self.handleSplitterButton(False))
layout.addWidget(button)
handle.setLayout(layout)
def handleSplitterButton(self, left=True):
if not all(self.splitter.sizes()):
self.splitter.setSizes([1, 1])
elif left:
self.splitter.setSizes([0, 1])
else:
self.splitter.setSizes([1, 0])
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
window = Window()
window.setGeometry(500, 300, 300, 300)
window.show()
sys.exit(app.exec_())
PyQt4:
from PyQt4 import QtCore, QtGui
class Window(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.splitter = QtGui.QSplitter(self)
self.splitter.addWidget(QtGui.QTextEdit(self))
self.splitter.addWidget(QtGui.QTextEdit(self))
layout = QtGui.QVBoxLayout(self)
layout.addWidget(self.splitter)
handle = self.splitter.handle(1)
layout = QtGui.QVBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
button = QtGui.QToolButton(handle)
button.setArrowType(QtCore.Qt.LeftArrow)
button.clicked.connect(
lambda: self.handleSplitterButton(True))
layout.addWidget(button)
button = QtGui.QToolButton(handle)
button.setArrowType(QtCore.Qt.RightArrow)
button.clicked.connect(
lambda: self.handleSplitterButton(False))
layout.addWidget(button)
handle.setLayout(layout)
def handleSplitterButton(self, left=True):
if not all(self.splitter.sizes()):
self.splitter.setSizes([1, 1])
elif left:
self.splitter.setSizes([0, 1])
else:
self.splitter.setSizes([1, 0])
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
window = Window()
window.setGeometry(500, 300, 300, 300)
window.show()
sys.exit(app.exec_())