使每个选项卡具有相同的宽度并可以扩展 [英] Make every tab the same width and also expandable
问题描述
我正在尝试通过浏览器实现类似选项卡的功能.所有标签页都必须具有相同的宽度，并且必须可扩展，因此当标签页很多时，它们需要调整大小和适合窗口大小(完全像Chrome或Firefox一样).
问题:
如果一个选项卡具有比其他选项卡更多的文本，则该选项卡将更大.像这样:
如果我产生很多标签，它将总是比其他标签大.
我尝试过的事情:
我尝试添加样式表来更改宽度，但是如果我将宽度更改为特定数字，则选项卡将是静态的，并且不会根据选项卡的数量来调整大小以适合窗口.我也尝试调整最小/最大宽度，弄乱了QSizePolicy，但是没有机会.
我看过QT5 for C ++的文档，并在Google上搜索了很多，但是没有地方谈论这个或关于这个的任何选择.
也许我需要在python中进行一些计算并将其作为参数添加到样式表中，但不确定如何使用.也许我缺少一个简单的选择.
我的代码:(这是完整的代码，因此您可以根据需要复制粘贴并对其进行测试)
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QTabWidget,\
QVBoxLayout, QHBoxLayout, QSizePolicy
class Container(QWidget):
def __init__(self, text):
super(Container, self).__init__()
self.hbox = QHBoxLayout()
self.hbox.setSpacing(0)
self.hbox.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.hbox)
self.button = QPushButton(text)
self.hbox.addWidget(self.button)
class CustomWidget (QWidget):
def __init__(self, parent=None):
super(CustomWidget, self).__init__(parent)
self.button = QPushButton("Add tab")
self.button.clicked.connect(self.buttonClicked)
self.tabs = QTabWidget()
self.tabs.setTabsClosable(True)
self.tabs.setMovable(True)
self.tabs.setDocumentMode(True)
self.tabs.setElideMode(Qt.ElideRight)
self.tabs.setUsesScrollButtons(True)
self.tabs.tabCloseRequested.connect(self.closeTab)
self.tabs.addTab(Container("Very big titleeeeeeeeee"),
"Very big titleeeeeeeeeeee")
self.tabs.addTab(Container("smalltext"), "smalltext")
self.tabs.addTab(Container("smalltext2"), "smalltext2")
vbox = QVBoxLayout()
vbox.addWidget(self.button)
vbox.addWidget(self.tabs)
self.setLayout(vbox)
self.resize(600, 600)
def closeTab(self, index):
tab = self.tabs.widget(index)
tab.deleteLater()
self.tabs.removeTab(index)
def buttonClicked(self):
self.tabs.addTab(Container("smalltext2"), "smalltext2")
app = QApplication([])
app.setStyleSheet("""
QTabBar::tab {
background: lightgray;
color: black;
border: 0;
/* min-width: 100px; */
max-width: 200px;
/* width: 150px; */
height: 20px;
padding: 5px;
}
QTabBar::tab:selected {
background: gray;
color: white;
}
""")
widget = CustomWidget()
widget.show()
sys.exit(app.exec_())
其他信息:
操作系统:Windows 10
Python版本:3.6.2
PyQt版本:5.9.1
要设置所有标签的宽度，我们必须覆盖 setTabBar() QTabWidget 的方法.
self.tabs = QTabWidget()
self.tabs.setTabBar(TabBar())
输出:
可以在以下链接中找到该示例
I'm trying to achieve something like the tabs from a Browser. All tabs must have the same width and also be expandable so when there are a lot of them they need to resize and fit the window (exactly like Chrome or Firefox does).
The Problem:
If a tab have more text then the other tabs, the tab will be larger. Like so:
And if I spawn a lot of tabs, it will always be larger then the others.
What I have tried:
I have tried to add a stylesheet to change the width, but if I change the width to a specific number, the tabs will be static and not resize based on the number of tabs to fit the window. Also I tried to tweak with min/max width, messing with the QSizePolicy, but no chance.
I have looked at the documentation of QT5 for C++ and googled a lot, but no place talks about this or any option about this.
Maybe I need to do some calculations in python and add to a stylesheet as a argument, but not sure how. Maybe there is a simple option that I'm missing.
My code: (This is the full code, so you can copy-paste and test it if you need)
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QTabWidget,\
QVBoxLayout, QHBoxLayout, QSizePolicy
class Container(QWidget):
def __init__(self, text):
super(Container, self).__init__()
self.hbox = QHBoxLayout()
self.hbox.setSpacing(0)
self.hbox.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.hbox)
self.button = QPushButton(text)
self.hbox.addWidget(self.button)
class CustomWidget (QWidget):
def __init__(self, parent=None):
super(CustomWidget, self).__init__(parent)
self.button = QPushButton("Add tab")
self.button.clicked.connect(self.buttonClicked)
self.tabs = QTabWidget()
self.tabs.setTabsClosable(True)
self.tabs.setMovable(True)
self.tabs.setDocumentMode(True)
self.tabs.setElideMode(Qt.ElideRight)
self.tabs.setUsesScrollButtons(True)
self.tabs.tabCloseRequested.connect(self.closeTab)
self.tabs.addTab(Container("Very big titleeeeeeeeee"),
"Very big titleeeeeeeeeeee")
self.tabs.addTab(Container("smalltext"), "smalltext")
self.tabs.addTab(Container("smalltext2"), "smalltext2")
vbox = QVBoxLayout()
vbox.addWidget(self.button)
vbox.addWidget(self.tabs)
self.setLayout(vbox)
self.resize(600, 600)
def closeTab(self, index):
tab = self.tabs.widget(index)
tab.deleteLater()
self.tabs.removeTab(index)
def buttonClicked(self):
self.tabs.addTab(Container("smalltext2"), "smalltext2")
app = QApplication([])
app.setStyleSheet("""
QTabBar::tab {
background: lightgray;
color: black;
border: 0;
/* min-width: 100px; */
max-width: 200px;
/* width: 150px; */
height: 20px;
padding: 5px;
}
QTabBar::tab:selected {
background: gray;
color: white;
}
""")
widget = CustomWidget()
widget.show()
sys.exit(app.exec_())
Other information:
Operating System: Windows 10
Python Version: 3.6.2
PyQt Version: 5.9.1
To set the width for all tabs we must override the tabSizeHint() method, in this case we return the same width for all tabs.
class TabBar(QTabBar):
def tabSizeHint(self, index):
size = QTabBar.tabSizeHint(self, index)
w = int(self.width()/self.count())
return QSize(w, size.height())
After assigning this custom tabBar we use the setTabBar() method of QTabWidget.
self.tabs = QTabWidget()
self.tabs.setTabBar(TabBar())
Output:
The example can be found in the following link
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