PioneerRedwood/QtExample

for studying by self about Qt

QtExample

for studying by self about Qt

Other opensource project

• QCefView (here qcview): https://github.com/tishion/QCefView -> qcview
• CefViewCore: https://github.com/CefView/CefViewCore ..

cef-grogu to QtExample migration

• Qt_tutorial, qcview ..

Qt_tutorial

• actually, it is not a tutorial.. bad naming on project

Qt connect sementic

// see Qt_tutorial/mainwindow.h
class MainWindow {
...
private slots:
void closeWindow();
void minimizeWindow();
...
}

// see Qt_tutorial/mainwindow.cpp
MainWindow::MainWindow {
    ...
    // MainWindow settings
    this->setWindowFlags(Qt::CustomizeWindowHint);
    this->setWindowFlags(Qt::FramelessWindowHint);

    // cotrolFrame's elements settings  
    connect(ui->closeButton, SIGNAL(clicked()), this, SLOT(closeWindow()));
    connect(ui->minimizeButton, SIGNAL(clicked()), this, SLOT(minimizeWindow()));
    ...
}

• Signal and Slots in Qt
• make window different like FramelessWindow

QtProject01

• inspired "just do it your project"
• my custom view not showing ..? why?

signal, slot to lambda upper C++11

// see QtProject01/main_window.cpp
void MainWindow::initialize() {

    connect(ui->changeMainWidgetColorBtn, &QPushButton::clicked, this,
            [this](){
                ui->mainWidget->setStyleSheet("background-color: red");
                qDebug() << "MainWidget: " << ui->mainWidget->pos() << "CustomWidget: " << cw->pos();
            }
    );
}

custom view dynamically allocate

class MainWindow {
private:
    CustomView* cw; // std::unique_ptr<CustomView> cw // can be worked well
}
...

MainWindow::MainWindow() {
    cw = new CustomWidget(ui->centralwidget); // look at the hierarchy of MainWindow
    ui->gridLayout->addWidget(cw, 2, 2, 1, 1);
}

References

• signal and slots in Qt