问题
Simplest case: How do you add a scrollbar to a tabbed GUI window of fixed size?
Full case: I'm working with a GUI with non-scaleable objects (scenes) in each tabbed frame, and would like the user to still be able to drag-scale the window down on itself (whereby the objects in the scene don't scale, but just get hidden as the window-drag moves over them) and a scroll bar appears. This is the minimal, working code that I've written to help exemplify:
import sys
from pyface.qt import QtGui, QtCore
class P1(QtGui.QWidget):
def __init__(self, parent=None):
super(P1, self).__init__(parent)
layout = QtGui.QGridLayout(self)
layout.setContentsMargins(20,20,20,20) #W,N,E,S
layout.setSpacing(10)
self.label_edge1 = QtGui.QLabel('')
self.label_edge1.setMargin(5)
self.label_edge1.setFrameStyle(QtGui.QFrame.Panel | QtGui.QFrame.Sunken)
layout.addWidget(self.label_edge1, 0, 0, 10, 10)
self.label_edge1.show()
self.label_avgVol = QtGui.QLabel('Test')
self.label_avgVol.setMargin(5)
self.label_avgVol.setFrameStyle(QtGui.QFrame.Box | QtGui.QFrame.Sunken)
self.label_avgVol.setAlignment(QtCore.Qt.AlignCenter | QtCore.Qt.AlignVCenter)
layout.addWidget(self.label_avgVol, 0, 0, 1, 10)
self.label_avgVol.show()
self.button1 = QtGui.QPushButton(" Test ", self)
layout.addWidget(self.button1, 8, 8, 1, 1)
self.button1.show()
class P2(QtGui.QWidget):
def __init__(self, parent=None):
super(P2, self).__init__(parent)
layout = QtGui.QGridLayout(self)
layout.setContentsMargins(20,20,20,20)
layout.setSpacing(10)
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setGeometry(50, 50, 500, 500) #(int x, int y, int w, int h)
tab1 = P1(self)
tab2 = P2(self)
self.tabs = QtGui.QTabWidget(self)
self.tabs.resize(250,150)
self.tabs.addTab(tab1, 'Page 1')
self.tabs.addTab(tab2, 'Page 2')
self.setWindowTitle('TABS + SCROLLBAR EXAMPLE')
### Section corrected to include accepted answer, in PyQt4:
self.groupscroll = QtGui.QHBoxLayout()
self.groupscrollbox = QtGui.QGroupBox()
self.MVB = QtGui.QVBoxLayout()
self.MVB.addWidget(self.tabs)
scroll = QtGui.QScrollArea()
widget = QtGui.QWidget(self)
widget.setLayout(QtGui.QHBoxLayout())
widget.layout().addWidget(self.groupscrollbox)
scroll.setWidget(widget)
scroll.setWidgetResizable(True)
self.groupscrollbox.setLayout(self.MVB)
self.groupscroll.addWidget(scroll)
self.setCentralWidget(scroll)
###
self.show()
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
w = MainWindow()
sys.exit(app.exec_())
回答1:
I tried something but I use pyqt5 so I modified a little your example. I'm not sure if it is what you wanted though:
import sys
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class P1(QWidget):
def __init__(self, parent=None):
super(P1, self).__init__(parent)
layout = QGridLayout(self)
layout.setContentsMargins(20,20,20,20) #W,N,E,S
layout.setSpacing(10)
self.label_edge1 = QLabel('')
self.label_edge1.setMargin(5)
self.label_edge1.setFrameStyle(QFrame.Panel | QFrame.Sunken)
layout.addWidget(self.label_edge1, 0, 0, 10, 10)
self.label_edge1.show()
self.label_avgVol = QLabel('Test')
self.label_avgVol.setFixedSize(600,600)
self.label_avgVol.setMargin(5)
self.label_avgVol.setFrameStyle(QFrame.Box | QFrame.Sunken)
self.label_avgVol.setAlignment(Qt.AlignCenter | Qt.AlignVCenter)
layout.addWidget(self.label_avgVol, 0, 0, 1, 10)
self.label_avgVol.show()
self.button1 = QPushButton(" Test ", self)
layout.addWidget(self.button1, 8, 8, 1, 1)
self.button1.show()
class P2(QWidget):
def __init__(self, parent=None):
super(P2, self).__init__(parent)
layout = QGridLayout(self)
layout.setContentsMargins(20,20,20,20)
layout.setSpacing(10)
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setGeometry(50, 50, 500, 500) #(int x, int y, int w, int h)
tab1 = P1(self)
tab2 = P2(self)
self.tabs = QTabWidget(self)
self.tabs.resize(250,150)
self.tabs.addTab(tab1, 'Page 1')
self.tabs.addTab(tab2, 'Page 2')
self.setWindowTitle('TABS + SCROLLBAR EXAMPLE')
### many trial and error attempts around this attempted setup:
self.groupscroll = QHBoxLayout()
self.groupscrollbox = QGroupBox()
self.MVB = QVBoxLayout()
self.MVB.addWidget(self.tabs)
scroll = QScrollArea()
widget = QWidget(self)
widget.setLayout(QHBoxLayout())
widget.layout().addWidget(self.groupscrollbox)
scroll.setWidget(widget)
scroll.setWidgetResizable(True)
self.groupscrollbox.setLayout(self.MVB)
self.groupscroll.addWidget(scroll)
self.setCentralWidget(scroll)
#self.sbar1 = QtGui.QScrollArea(tab1)
#self.sbar1.setWidget(QtGui.QWidget())
#self.sbar1.setEnabled(True)
###
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
w = MainWindow()
sys.exit(app.exec_())
it gives you the scroll bar (bottom and right) if the inner tab part is too big for the window size:
来源：https://stackoverflow.com/questions/49471331/pyqt4-how-to-add-scrollbar-into-tabbed-windows-of-fixed-size