实例2 标准对话框的使用
from PyQt4.QtCore import * from PyQt4.QtGui import * import sys class StandardDialog(QDialog): def __init__(self,parent = None): super(StandardDialog,self).__init__(parent) self.filePushButton = QPushButton("File Dialog") self.fileLineEdit = QLineEdit() self.fileLineEdit.setText("Hello") self.colorPushButton = QPushButton("Color Dialog") self.colorFrame = QFrame() self.colorFrame.setFrameShape(QFrame.Box) self.colorFrame.setAutoFillBackground(True) self.fontPushButton = QPushButton("Font Dialog") self.fontLineEdit = QLineEdit() self.fontLineEdit.setText("Font Dialog") gridlayout = QGridLayout() gridlayout.addWidget(self.filePushButton,0,0) gridlayout.addWidget(self.fileLineEdit,0,1) gridlayout.addWidget(self.colorPushButton,1,0) gridlayout.addWidget(self.colorFrame,1,1) gridlayout.addWidget(self.fontPushButton,2,0) gridlayout.addWidget(self.fontLineEdit,2,1) self.connect(self.filePushButton,SIGNAL("clicked()"),self.openFileDialog) self.connect(self.colorPushButton, SIGNAL("clicked()"),self.openColorDialog) self.connect(self.fontPushButton, SIGNAL("clicked()"),self.openFontDialog) self.setLayout(gridlayout) def openFileDialog(self): s = QFileDialog.getOpenFileName(None, "open file dialog") self.fileLineEdit.setText(s) def openColorDialog(self): color = QColorDialog.getColor(Qt.blue) self.colorFrame.setPalette(QPalette(color)) def openFontDialog(self): font,ok = QFontDialog.getFont() self.fontLineEdit.setFont(font) if __name__ == '__main__': app = QApplication(sys.argv) sd = StandardDialog() sd.show() app.exec_()
