kitech / Qt.go

qt.go

Qt5 binding for Go (Golang) without CGO that aims to achieve Go's native compile speeds. Instead of using common bindings and heavy C++ wrapper code that forces you to compile and link time and time again, Qt.Go uses FFI so there's only a runtime dependency.

Features

• Binding code with no CGO compile cost
• Popular Qt5 packages (widgets/QML/extras) support
• Simple go-uic, go-rcc tools
• full signal/slot support
• protected method override support
• default arguments and value wrapper functions
• Class/Method/Function/Enum comment for godoc
• Go side signal/slot definition (experimental)

Multiple platforms support

All platforms should be supported, for now some of them are tested:

• Archlinux/Ubuntu16+
• MacOS
• Android
• Windows

Installation

requirement

• go 1.9+
• libffi
• dlfcn (windows)

FFI

Make sure libffi is installed

Debian based: apt-get install libffi-dev

Arch based: pacman -S libffi

MacOS: brew install libffi

qt.go:

go get -v -u github.com/kitech/qt.go

runtime dependency:

git clone https://github.com/kitech/qt.inline.git
cd qt.inline
cmake .
make
cp libQt5Inline.so /usr/lib/libQt5Inline.so

uic/rcc

go get -v -u github.com/kitech/qt.go/cmd/go-uic
go get -v -u github.com/kitech/qt.go/cmd/go-rcc

Full Installation

Examples

package main
import "os"
import "github.com/kitech/qt.go/qtwidgets"
func main() {
    app := qtwidgets.NewQApplication(len(os.Args), os.Args, 0)
    btn := qtwidgets.NewQPushButton1("hello qt.go", nil)
    btn.Show()
    app.Exec()
}

More complex examples: https://github.com/kitech/qt.go/examples/ https://github.com/qtchina/qt.go.demos/

Go side signal/slot: syntax document usage demo

Community

• QQ groupchat 933636020
• Telegram room https://t.me/qtdevjiaoliu (Thanks https://github.com/xiayesuifeng)

Internals

Qt.Go uses FFI to call wrapped Qt functions and methods, so there is no compile/link time dependency on Qt, only a run time dependency.

This should make the development and testing phases much faster.

Internal document