filcuc/dqml

Qt Qml bindings for the D programming language

DQML

QML binding for the D programming language

Supported features

• Creation of custom QObjects
• Creation of custom QAbstractItemModels
• Creation of QML instantiable QObjects
• Creation of QML instantiable Singleton

Requirements

• Install the DOtherSide library 0.6.3 or higher
• Install dmd 2.071 or higher

Build instructions

Linux

• Compile and Install DOtherside in your system PATH (i.e. /usr/lib)
• dub fetch dqml

Windows

Due to the shitty linker used by DMD (optlink) on windows. Using this bindings it's a little bit more complicated on this platform. Basically the hard part consists in generating a valid .lib for the DOtherSide.dll. I wrote a step by step tutorial, that you can read here;

dqml's Issues

[enhancement] System tray icon support?

Native QML does not provide support for system tray icons, instead one needs to leverage QT and bind to QML as shown here or here. Would it be possible to get support for this into dqml?

Specifically, the functionality I am after is this:
One tray icon with two actions "Show" and "Quit", the former of which shows a specific window (maybe by its QML id?) if it is not yet shown (and focuses it), while the latter quits the QML application. It would also be nice if tray's icon could be loaded from QT's Resource system.

[enhancement] Receive events in D

Looking at the examples I figured out how to send signals to QML, but not the other way around. If it not implemented, I would like to request it. My use-case:

1. D: Instantiate a (generic) controller logic (D class inheriting QObject) and expose it via engine.rootContext.setContextProperty
2. QML: Dynamically create a new QML component chatWindow, fetch a specialised controller chat (D class inheriting QObject) from logic and pass it to chatWindow as one of its initial properties
3. QML: chatWindow registers itself with chat via one of the latter's methods
4. D: In that registration, chat binds to chatWindow's destroyed signal a callback that destroys chat itself

The result: When chatWindow gets destroyed the corresponding chat gets destroyed automatically.

Sadly, Component.onDestruction cannot be used in this context, as that would result in chatbeing destroyed while the destructor for chatWindow is still running, causing a bunch of QML null type errors, one for each reference to chat in chatWindow.

Now the first two steps are easy to do with what dqmlcurrently has. However, I'm at a loss on how to accomplish the last two steps without modifying Dotherside/dqml.

Problem with QVariant and QObject

Hi,

it seems that wrapping a QObject inside a QVariant does not work properly. The void* inside the QVariant for me points to a wrong address.
The following code prints e.g.: '55AF7A0C72E0 7FD2A2F15680', which are not the same addresses.

SomeQObject q = new SomeQObject();
QVariant qv = new QVariant(q);
writeln(qv.voidPointer, " ", cast(void*)q);

Similiarly when I have a QSlot() that accepts a QVariant and call the Slot from qml with a QObject I receive 'null' in the slot.

Any ideas?

Using `connect`

What is analog this in dqml?

connect(this, SIGNAL(windowChanged(QQuickWindow*)), this, SLOT(handleWindowChanged(QQuickWindow*)));

context is here

I tried

connect(this, "windowChanged", this, "handleWindowChanged");

but got

QObject::connect: Use the SIGNAL macro to bind DQmlOpenGL::windowChanged

Example receivesignals provides example for more simple calling.

QVariant: Arrays or list

Can you add support for arrays/lists before breaking changes please?

coveralls.io support

Depends on #2 and #3

[Question] How do i make an array accessible to QML via @QtSlot ?

Which data types are available? Is there something like a QList which i can use to convert my data?

Improve the qobject connect syntax

We should support a static connect syntax that doesn't use strings.
Basically like Qt5 new connect signals
connect(sender, pointertofunction, receiver, pointertofunction) in order to have compile time checking.
Try to move some connect details to the C++ DOtherSide library in order to share some code with other bindings

Add appvejor to CI

Travis CI support

Linker error compiling helloworld

Hi Filippo,
I have tried to compile helloworld

$ cd dqml/examples/helloworld/
$ dub build --verbose
/home/dao/.dub/packages/dqml-0.6.1/dqml/source/dqml/qobject.d(109,13): Deprecation: foreach: loop index implicitly converted from size_t to int
....
Linking...
/usr/bin/dmd -of.dub/build/application-debug-linux.posix-x86_64-dmd_2085-62B3124FD7CA697A98D4DCCFD778CEA8/helloworld .dub/build/application-debug-linux.posix-x86_64-dmd_2085-62B3124FD7CA697A98D4DCCFD778CEA8/helloworld.o -L--no-as-needed -L-lDOtherSide -g

/home/dao/.dub/packages/dqml-0.6.1/dqml/source/dqml/qabstracttablemodel.d:58: error: undefined reference to 'dos_qabstracttablemodel_create'
....
collect2: error: ld returned 1 exit status
Error: linker exited with status 1
/usr/bin/dmd failed with exit code 1.

I downloaded DOtherSide from here then:

# pacman -U DOtherSide-0.5.2-1-x86_64.pkg.tar.xz

then:

$ sudo ldconfig

My environment

$ uname --all
Linux abe 5.0.2-arch1-1-ARCH #1 SMP PREEMPT Thu Mar 14 18:47:49 UTC 2019 x86_64 GNU/Linux

$ dmd --version
DMD64 D Compiler v2.085.0

$ dub --version
DUB version 1.14.0, built on Mar 17 2019

Thank you

Add dub support for examples

Compile error with Qt6 in Fedora

TextBin Error:
https://pastebin.pl/view/058bb330

I have installed all modules and libraries of Qt 6 on my system

DMD Version:
DMD64 D Compiler v2.100.2

LDC version:
based on DMD v2.100.1 and LLVM 14.0.3