我使用QT设计器和pyqt4进行GUI小部件设计和编程。我设计了一个标签小部件，其中放置了几个必需的小部件。现在我想添加另一个选项卡，并且在运行时，如果我在选项卡之间切换，选项卡1中的窗口小部件的克隆应该显示在tab2中并且应该相应地处理它。有没有办法做到这一点？
答案 0 :(得分：2)
我不知道这是不是你需要的，但我想你可以从以下代码中得到一些想法，我只有三个“伙伴”。
注意：正如我所说，这只是我选择做的一种简单方式，我希望你能从这个例子中推断出你需要的东西：
import sys
from PyQt5.QtCore import QSize, pyqtSlot
from PyQt5.QtCore import Qt
from PyQt5.QtCore import pyqtSignal
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QInputDialog
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QTabBar
from PyQt5.QtWidgets import QTabWidget
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
class MyWidget(QWidget):
default_name = "New"
def __init__(self):
super(MyWidget, self).__init__()
self.setStyleSheet("""
border-radius: 4px;
background:rgb(37,43,52,220);
""")
self.name = self.default_name
class TabBarPlus(QTabBar):
"""Tab bar that has a plus button floating to the right of the tabs."""
plusClicked = pyqtSignal()
def __init__(self, parent):
super(TabBarPlus, self).__init__()
self.setParent(parent)
self.setStyleSheet(
"""
QTabBar::tab {
width: 80px;
}
QTabBar::tab:selected {
font-family: Roboto;
font-size: 18px;
font: italic;
color: rgb(0,0,0,255);
background: rgb(234,234,234,255);
border-top-left-radius: 8px;
border-top-right-radius: 8px;
border:1px;
border-color: rgb(197,197,199,255);
border-top-style: solid;
border-right-style: solid;
border-left-style: solid;
padding: 10px 50px 10px 24px;
}
QTabBar::tab:!selected{
font-family: Roboto;
font-size: 18px;
font: italic;
color: rgb(255,255,255,255);
background: rgb(175,175,175,255);
border-top-left-radius: 8px;
border-top-right-radius: 8px;
border:1px;
border-color: rgb(197,197,199,255);
border-top-style: solid;
border-right-style: solid;
border-bottom-style: ;
border-left-style: solid;
padding: 10px 50px 10px 24px;
}
""")
# Plus Button
self.plusButton = QPushButton("+")
self.plusButton.setParent(self)
self.plusButton.setMaximumSize(20, 20) # Small Fixed size
self.plusButton.setMinimumSize(20, 20) # Small Fixed size
self.plusButton.clicked.connect(self.plusClicked.emit)
self.movePlusButton() # Move to the correct location
# end Constructor
def sizeHint(self):
"""Return the size of the TabBar with increased width for the plus button."""
sizeHint = QTabBar.sizeHint(self)
width = sizeHint.width()
height = sizeHint.height()
return QSize(width+25, height)
# end tabSizeHint
def resizeEvent(self, event):
"""Resize the widget and make sure the plus button is in the correct location."""
super().resizeEvent(event)
self.movePlusButton()
# end resizeEvent
def tabLayoutChange(self):
"""This virtual handler is called whenever the tab layout changes.
If anything changes make sure the plus button is in the correct location.
"""
super().tabLayoutChange()
self.movePlusButton()
# end tabLayoutChange
def mouseDoubleClickEvent(self, event):
if event.button() != Qt.LeftButton:
super(TabBarPlus, self).mouseDoubleClickEvent(event)
idx = self.currentIndex()
ok = True
self.input_dialog = QInputDialog()
print(type(self.input_dialog.textEchoMode()))
newName, ok = QInputDialog.getText(self, 'Mudar nome',
'Novo nome:')
if ok:
self.setTabText(idx, newName)
def open_kb(self):
print("open keyboard")
def movePlusButton(self):
"""Move the plus button to the correct location."""
# Find the width of all of the tabs
size = 0
for i in range(self.count()):
size += self.tabRect(i).width()
# Set the plus button location in a visible area
h = self.geometry().top()
w = self.width()
if size > w: # Show just to the left of the scroll buttons
self.plusButton.move(w-54, h)
else:
self.plusButton.move(size, h)
# end movePlusButton
# end class MyClass
class WidgetTab(QTabWidget):
layout = None
def __init__(self):
super(WidgetTab, self).__init__()
self.setStyleSheet("""
border-radius: 4px;
background:rgb(37,43,52,220);
""")
self.layout = QVBoxLayout()
self.setLayout(self.layout)
self.setMinimumSize(800,400)
self.init_ui()
def init_ui(self):
# Tab Bar
self.tab = TabBarPlus(self)
self.setTabBar(self.tab)
# Properties
# self.setMovable(True)
# Signals
self.tab.plusClicked.connect(self.add_tab)
self.tab.tabMoved.connect(self.tab.movePlusButton)
self.tabCloseRequested.connect(self.removeTab)
self.add_tab()
def add_tab(self):
if self.count() >0:
self.setTabsClosable(True)
else:
self.setTabsClosable(False)
my_widget = MyWidget()
self.addTab(my_widget,my_widget.name)
def removeTab(self, p_int):
if self.count() > 1:
self.setTabsClosable(True)
else:
self.setTabsClosable(False)
try:
self.chart.removeSeries(self.series[p_int])
self.tables.remove(self.tables[p_int])
self.models.remove(self.models[p_int])
self.series.remove(self.series[p_int])
except:
pass
super(WidgetTab, self).removeTab(p_int)
@pyqtSlot()
def update_axes(self):
for s in self.series:
self.chart.removeSeries(s)
self.chart.addSeries(s)
self.chart.createDefaultAxes()
if __name__ == "__main__":
app = QApplication(sys.argv)
wt = WidgetTab()
wt.show()
sys.exit(app.exec_())