Carbon interface internals
From Free Pascal wiki
This page gives an overview of the LCL carbon interface for MacOSX and will help new developers.
For installation and creating a first carbon application read first Carbon Interface.
What is already working ?
- Creating a TForm
- Creating and clicking on a TButton
- Creating TOpenGLControl with AGL context (see components/opengl/)
- Mouse events
What needs to be done next
- Create more controls (TLabel, TEdit, TCheckBox, TGroupBox)
- Keyboard events (KeyDown, KeyUp, Char)
- Resize events (when form has been resized by user)
- ShowModal (for dialogs)
How to add a new control
For example TButton.
TButton is defined in lcl/buttons.pp
And its widgetset class in lcl/widgetset/wsbuttons.pp
Its carbon interface class in lcl/interfaces/carbon/carbonwsbuttons.pp
Keys
- Apple Command key is mapped to ssCtrl due to Apple Guidelines
- Apple control key is mapped to ssMeta
- Apple option key is mapped to its inscription, i.e. ssAlt