ladybird/Applications/Piano
Andreas Kling bc319d9e88 LibCore: Make CObject reference-counted
Okay, I've spent a whole day on this now, and it finally kinda works!
With this patch, CObject and all of its derived classes are reference
counted instead of tree-owned.

The previous, Qt-like model was nice and familiar, but ultimately also
outdated and difficult to reason about.

CObject-derived types should now be stored in RefPtr/NonnullRefPtr and
each class can be constructed using the forwarding construct() helper:

    auto widget = GWidget::construct(parent_widget);

Note that construct() simply forwards all arguments to an existing
constructor. It is inserted into each class by the C_OBJECT macro,
see CObject.h to understand how that works.

CObject::delete_later() disappears in this patch, as there is no longer
a single logical owner of a CObject.
2019-09-22 00:25:25 +02:00
..
main.cpp LibCore: Make CObject reference-counted 2019-09-22 00:25:25 +02:00
Makefile LibDraw: Introduce (formerly known as SharedGraphics.) 2019-07-18 10:18:16 +02:00
Music.h Piano: Add mouse support for playing notes 2019-08-03 07:59:41 +02:00
PianoWidget.cpp Piano: Add mouse support for playing notes 2019-08-03 07:59:41 +02:00
PianoWidget.h LibGUI: Convert custom widgets and subclasses to ObjectPtr 2019-09-21 20:04:00 +02:00