Solved QBoxLayout is not shown properly
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I tried to create a some textedit and pushbutton in layout without using UI . But i have received the plain latout at the End and i have these type of Error .
QWidget::setLayout: Attempting to set QLayout "" on MainWindow "MainWindow", which already has a layout
QObject::connect: Parentheses expected, slot MainWindow::writetoFile in ../serial_mannualselct/mainwindow.cpp:34
QObject::connect: (receiver name: 'MainWindow')MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); setWindowTitle("TITLE"); cBox = new QComboBox; Save = new QPushButton; SBox = new QSpinBox; tEdit = new QTextEdit; Hlay = new QHBoxLayout; cBox->addItem("First"); cBox->addItem("Second"); cBox->addItem("third"); Save->setText("save"); Hlay->addWidget(SBox); Hlay->addWidget(tEdit); Hlay->addWidget(cBox); Hlay->addWidget(Save); setLayout(Hlay); MainWindow::connect(Save, SIGNAL(clicked()), this, SLOT (writetoFile));// I think here there is a problem } MainWindow::~MainWindow() { delete ui; } void MainWindow::writetoFile(){ QString fname = "/home/adx-soft1/Shankar/serial_mannualselct/file.txt"; QFile file(fname); if (file.open(QIODevice::WriteOnly | QIODevice::Text)) { QTextStream stream(&file); QString textFromSpin = QString::number(SBox->value()); QString textFromBox = tEdit->toPlainText(); QString textFromCombo= cBox->currentText(); stream << "Spinner value" << endl ; stream << "TEXT FROM BOX" << endl ; stream << "TEXT FROM COMBO" << endl file.close(); }
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Hi,
QMainWindow already has a layout, the one that manages the docked widgets, tool bars, etc.
Put your stuff inside a plain QWidget and use it as central widget.
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Hi,
QMainWindow already has a layout, the one that manages the docked widgets, tool bars, etc.
Put your stuff inside a plain QWidget and use it as central widget.