Unfortunately (sigh), the KDE Wayland compositor does not seem to support
correctly, that is, as described by the Wayland protocol, popup windows
that are taller than the display : there is no means to make it draw such popup
so that part of it is above the screen top, whereas the 3 other tested compositors
(Mutter, Weston, Sway) don't have this problem.
This commit implements a new approach to draw tall menu windows, and uses
it only with the KDE compositor : instead of asking the compositor to slide the
menu window up, the menu window remains at a fixed position and the graphics
inside the window is slided up.
This requires to add a member variable, int offset_y, to class menuwindow, that
gets used only for the Wayland platform and that contains the vertical offset by which
graphics to the menu window is moved, expressed in FLTK units. An accessor
to the address of this member variable is added to class Fl_Window_Driver.
Tall menus now work also as single popup window and show the correct selected item.
Groups of popups with a menutitle, an associated menuwindow, and possibly submenus
are constructed around the menuwindow, the menutitle being a child popup of the
menuwindow. This positions these popup groups better than before.
src/print_button.cxx: "Print front window" implementation (new file)
This is compiled and activated if USE_PRINT_BUTTON is defined.
The feature can be fine controlled by environment variable
'FLTK_PRINT_BUTTON' (see docs in source file).
- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files
The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
