Name: lablqml
Brand: lablqml
SKU: //Kakadu/lablqml
Rating: 2.1025 (141 reviews)

Kakadu/ lablqml

C++

OCaml

Shell

Haskell

qtquick

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About the developer

Kakadu

141 Stars

14 Forks

GNU Lesser General Public License v2.1

701 Commits

11 Opened issues

Description

Interfacing Qt/QML with OCaml. Formely known as lablqt

Services available

Need anything else?

Contributors list

Dmitrii Kosarev Kakadu

# 342,459

OCaml

mcu

CSS

qtquick

621 commits

ygrek ygrek

# 265,304

OCaml

opam

functio...

Crystal

16 commits

Yotam Barnoy bluddy

# 237,946

OCaml

Emacs

Atom

algebra...

3 commits

Martin DeMello martindemello

# 82,381

Vim

game-fr...

Racket

2 commits

Dmitry Grebeniuk gdsfh

# 615,371

qtquick

OCaml

1 commit

Fabian copy

# 6,832

Rust

mind-ma...

Neovim

1 commit

Clément Busschaert clembu

# 158,810

OCaml

Emacs

emacs-l...

emacs-c...

1 commit

ShalokShalom ShalokShalom

# 43,007

Godot

koa2

1 commit

Readme

Let's write QML/QtQuick GUI for OCaml (or Reason) using lablqml!

In this repo you can find my work about integrating OCaml and Qt. Initially, I planned to generate binding code for OCaml and Qt Widgets and called this library

lablqt

. But I found it hard to implement mostly because Qt relies on inheritance very much (we can't add onClick handler for button without inheritance). Later I decided to generate binding code for OCaml and QML/QtQuick. And I believe that QtQuick is the right way to create UI in Qt right now. See online book for getting started with Qt/QML itself

From 14th of February 2017 it's renamed from

lablqt

lablqml

because it is actually about QtQuick and not QtWidgets or Qt itself. If you really need QtWidgets you can check out mrvn's work or def's.

Directories mapping:

PPX syntax extension with code generator is in
```
ppx/
```
.
Library for interfacing with QtQuick 2 is in
```
lib
```
.
Demo that can be build during opam installation is in
```
dune_test
```
. Use
```
make demo
```
to build it.
Old demos that are not using
```
dune
```
as build system are in
```
demos/
```
.
Demo app
```
qocamlbrowser
```
(ocamlbrowser with QtQuick instead of Tcl/Tk) is located in separate repo.

Github pages site and tutorial are available.

Use

./configure && make

to build it. Don't forget to install

g++

and good Qt version (>= 5.3 I think,

./configure

will check for it, btw).

Installed files

$ opam show lablqml --list-files
/home/kakadu/.opam/4.07.0+fp+flambda/bin/ppx_qt
/home/kakadu/.opam/4.07.0+fp+flambda/doc/lablqml/CHANGELOG
/home/kakadu/.opam/4.07.0+fp+flambda/doc/lablqml/README.md
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/META
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/dune-package
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.a
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cma
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmi
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmt
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmti
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmx
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmxa
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.cmxs
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.h
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.ml
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/lablqml.mli
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/liblablqml_stubs.a
/home/kakadu/.opam/4.07.0+fp+flambda/lib/lablqml/opam
/home/kakadu/.opam/4.07.0+fp+flambda/lib/stublibs/dlllablqml_stubs.so

There is a library here. It's fine to use it for simple programs

There is also

ppx_qt

executable. It is used to generate C++ code from OCaml. See

demos/

for examples

Minimal ocamlfind-based helloworld

➜  cat a.ml

open Lablqml

let main () = ()
let () =
  run_with_QQmlApplicationEngine Sys.argv main "Root.qml"

➜  cat Root.qml

import QtQuick 2.0
import QtQuick.Controls 1.0
ApplicationWindow {
    color: "#FFFFDF" // we declare rectangle with custom background color
    width:  400;
    height: 300;     // with custom size
    Text {
        anchors.centerIn: parent
        text: "Click me!"
    }
    MouseArea {
        anchors.fill: parent      // all space in parent Rectangle will be clickable
    }
}

➜  ocamlfind opt -package lablqml a.ml -thread -linkpkg -cclib -lQt5Quick -cclib -lQt5Qml -cclib -lQt5Network -cclib -lQt5Widgets -cclib -lQt5Gui -cclib -lQt5Core -cclib -lstdc++
➜  ./a.out

Playing with REPL

#thread;;
#require "lablqml";;