This patch fixes many warnings from the beginning of the build up to
and including the depend stage. Nearly all warnings should be gone
even with -Wall.
Removed all the cases of sys_errlist[], no one should be using that
today. Also, correct code generation so that declarations like
'Widget w = NULL; Pixmap p = NULL;' etc, aren't produced, which is
wrong. Use '0', not NULL for these.
This should also correct the 2 mis-definitions of Pixmap that commit
6a9327f2ab attempted to fix in ttsnoop.
dtappbuilder still needs a lot of work.
This fix is a bit of a hack, I just moved the declarations into the
'user code' portion of main().
dtcodegen needs to be fixed so as not to generate this type of code in
the first place.
The patch converts desktop_grid[] from Boolean array into array of
counters of objects, which are placed on cells. When object is
placed on /removed from the screen the counter gets incremented/decremented.
The panel registration code rather stupidly assumed that display
size is always 1280x1024 pixels. Because of this, depending on screen
size, the panel could be registered somewhere in the center of the screen
or completely or partially beyond of it.
The panels were registered only on startup, not those, which were added
from UI.
The fix moves panel registration into separate routine and removes assumption
about display size. The fix yet is not complete since it still makes assumption
about panel's geometry: from dtfile there is still no way to find out
dinamically the size of panel and it's location.
On small screens segfaults could be also triggered without any icons on dtfile
startup if dtwm panel (or part of it) was registered beyond the screen when
RegisterInGrid() was called by InitializeDesktopGrid().
The patch also makes grid registration work for large objects (larger than
2 cells in any direction, like dtwm panel or icon with long file name).
Previously only rectangle vertices were registered.
