我有很多选项卡,它们只包含一个QTextEdit元素,我需要阅读当前选项卡的QTextEdit的文本。 有可能实现吗?
#!/depot/Python-2.7.6/bin/python
import sys,os,copy,re,subprocess
from PyQt4.QtGui import *
from PyQt4.QtCore import *
class Tool(QWidget):
def __init__(self,parent=None):
super(Tool, self).__init__(parent)
self.tabs = QTabWidget()
self.tabs.setTabsClosable(True)
self.tabs.isMovable()
self.initUI()
def help_func(self):
new_tab = QWidget()
text = QTextEdit(self)
text.setReadOnly(True)
text.setLineWrapMode(QTextEdit.NoWrap)
text.setText("some text")
TextBoxlayout = QVBoxLayout()
TextBoxlayout.addWidget(text)
new_tab.setLayout(TextBoxlayout)
self.tabs.addTab(new_tab,str(self.tabs.count()))
self.tabs.setCurrentIndex(self.tabs.count()-1)
def initUI(self):
Tool.help_func(self)
Tool.help_func(self)
Tool.help_func(self)
grid = QGridLayout(self)
grid.addWidget(self.tabs,0,0)
self.setLayout(grid)
我希望在标签更改信号上打印QTextEdit文本。
答案 0 :(得分:2)
利用QTextEdit是TextBoxlayout的一部分这一事实,因此它是new_tab的子代,可以使用findChild()获得它:
class Tool(QWidget):
def __init__(self, parent=None):
super(Tool, self).__init__(parent)
self.tabs = QTabWidget(
tabsClosable=True, currentChanged=self.onCurrentChanged
)
self.initUI()
def help_func(self):
new_tab = QWidget()
text = QTextEdit(readOnly=True, lineWrapMode=QTextEdit.NoWrap)
text.setText("some text")
TextBoxlayout = QVBoxLayout(new_tab)
TextBoxlayout.addWidget(text)
self.tabs.addTab(new_tab, str(self.tabs.count()))
self.tabs.setCurrentIndex(self.tabs.count() - 1)
def initUI(self):
for _ in range(3):
self.help_func()
grid = QGridLayout(self)
grid.addWidget(self.tabs, 0, 0)
@pyqtSlot(int)
def onCurrentChanged(self, ix):
w = self.tabs.widget(ix)
te = w.findChild(QTextEdit)
if te is not None:
print(te.toPlainText())