Sve*_*ven 6 python qgis qt-creator qlineedit
我为我的插件创建了一个带有3个按钮的启动GUI.这非常有效,如果我单击其中一个按钮,则会启动特定操作.到目前为止这个工作.如果我点击其中一个按钮,新的GUI有两个按钮"ok"和"cancel",并出现一条lineedit.如果我按下取消,GUI将被关闭,如果我按下ok,我希望程序从editline读取文本并将其存储在变量中.到目前为止,这还没有奏效.
这是包含对话框的类:
from PyQt4.QtCore import pyqtSlot
from PyQt4.QtGui import QDialog, QLineEdit
from ui_grz import Ui_Dialog
class grzDialog(QDialog):
def __init__(self):
QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_Dialog()
self.ui.setupUi(self)
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在使用QT Designer和命令pyuic4创建GUI之后,这是一个包含GUI结构的类:
from PyQt4 import QtCore, QtGui
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
_fromUtf8 = lambda s: s
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(387, 153)
self.buttonBox = QtGui.QDialogButtonBox(Dialog)
self.buttonBox.setGeometry(QtCore.QRect(30, 110, 341, 32))
self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
self.buttonBox.setObjectName(_fromUtf8("buttonBox"))
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(10, 10, 361, 51))
self.label.setObjectName(_fromUtf8("label"))
self.lineEdit = QtGui.QLineEdit(Dialog)
self.lineEdit.setGeometry(QtCore.QRect(10, 60, 351, 31))
self.lineEdit.setObjectName(_fromUtf8("lineEdit"))
self.retranslateUi(Dialog)
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Dialog.accept)
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), Dialog.reject)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "GRZ Analyse", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("Dialog", "<html><head/><body><p><span style=\" font-weight:600;\">Bitte geben Sie hier den Schwellenwert für die GRZ-Analyse ein:</span></p><p>Bitte achten Sie auf eine korrekte Schreibweise (bspw. 2.5):</p></body></html>", None, QtGui.QApplication.UnicodeUTF8))
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在这个课程中我需要变量:
# Import the PyQt and QGIS libraries
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
# Import the code for the dialog
from ubgrzdialog import grzDialog
class quickAnalysis:
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
def grzAnalysis(self):
dlg = grzDialog()
dlg.show()
result = dlg.exec_()
if result == 1:
text = dlg.text()
QMessageBox.information(self.iface.mainWindow(),"test", "%s" %(text), QMessageBox.Ok)
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这只是该类的一小部分,但这是我有问题如何从LineEdit小部件中读取文本的部分.
你有什么想法或建议吗?
如果这是一个双重帖子,感谢和抱歉,但我找不到适合我的问题的答案.
如文档中所述,QLineEdit可以使用其方法检索a的文本text.
text = dlg.ui.lineEdit.text()
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请注意,它是一个QString,而不是一个常规字符串,但这不应该是一个问题,因为你用它格式化它"%s" % text.
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