package main

import (
    "github.com/therecipe/qt/widgets"
    "os"
)

func main() {
    // Create application
    app := widgets.NewQApplication(len(os.Args), os.Args)

    // Create main window
    window := widgets.NewQMainWindow(nil, 0)
    window.SetWindowTitle("Hello World Example")
    window.SetMinimumSize2(200, 200)

    // Create main layout
    layout := widgets.NewQVBoxLayout()

    // Create main widget and set the layout
    mainWidget := widgets.NewQWidget(nil, 0)
    mainWidget.SetLayout(layout)

    // Create a line edit and add it to the layout
    input := widgets.NewQLineEdit(nil)
    input.SetPlaceholderText("1. write something")
    layout.AddWidget(input, 0, 0)

    // Create a button and add it to the layout
    button := widgets.NewQPushButton2("2. click me", nil)
    layout.AddWidget(button, 0, 0)

    // Connect event for button
    button.ConnectClicked(func(checked bool) {
        widgets.QMessageBox_Information(nil, "OK", input.Text(),
            widgets.QMessageBox__Ok, widgets.QMessageBox__Ok)
    })

    // Set main widget as the central widget of the window
    window.SetCentralWidget(mainWidget)

    // Show the window
    window.Show()

    // Execute app
    app.Exec()
}