... "when there's no current window".
Silently ignore GLUT function calls that need a current window if the
current window is NULL, return 0 from functions that return an 'int'.
Check if window is shown in Fl_X11_Gl_Window_Driver::swap_buffers().
This would issue "XRequest.nnn: GLXBadDrawable 0x0" on X11 otherwise.
Note: the chosen implementation to ignore GLUT calls silently appears
to be compatible with GLUT (3.7) whereas FreeGLUT 3.0 would issue error
messages and exit. The latter could be implemented as well but would
be much more work.
The previous member Fl_Wayland_Graphics_Driver::create_shm_buffer() is now
renamed to create_wld_buffer() and divided in 2 parts:
- one is related to the draw buffer;
- the other is related to the wl_buffer and is what is now called create_shm_buffer().
This allows to delay creation of the wl_buffer until absolutely necessary,
done inside Fl_Wayland_Graphics_Driver::buffer_commit().
fl_filename_absolute can no generate a path using arbitrary source paths.
Fl_Menu_ adds find_item_with_user_data and find_item_with_argument
Fl_String adds find(string, start)
That commit's goal was to use an algorithm that does not assume
that number keys are at keycodes 10-19, which may not hold with
"special" keyboards. Unfortunately, the new algorithm requires
Mutter V12 and fails with Mutter V11, used by Debian 12.
Pressing the shift key while using the mousewheel changes
horizontal to vertical scrolling and vice versa. This allows users
with a standard mouse with only one scrollwheel to use it for both
scrolling directions.
This concludes "handling shift + mousewheel" for all supported platforms.
Libdecor complicates what should be simple, to close a decorated window,
because it uses the titlebar after return from the closing callback function.
Thus, FLTK delays the sending of the FL_CLOSE event to the window,
only when libdecor runs in CSD mode.
Notes:
(1) Fl::e_state holds the current state of all mouse buttons which is
returned by Fl::event_buttons() - "plural form".
(2) Fl::e_keysym holds the "key" of the current event which can be a
mouse button, returned by Fl::event_button() - "singular form".
