In 2.0, the distance between the points in the TTF request specified
cap height. In 2.1, that was accidentally changed to some arbitrary
value near cap height instead, due to a 72pt factor mess-up.
This commit restores the old behavior.
If SolveSpace crashes after the open, or hangs and is forcibly
killed, data would be lost. (I lost my data.) Instead, remove
autosave only in two cases: right after a successful save, or right
after a save is declined. This should be completely safe.
A previous attempt to fix this was done in 0128b8679. However, it was
not rigorous. The added offset was dependent on font size and it
introduced an error into edit control positioning. Further, it is
irrelevant to non-workplanes.
After this commit, the workplane drawing code adds a fixed offset
instead. Also, the "tab" is enlarged to not overlap with #XY etc.
Without this, if we have e.g.:
* a/x.slvs
* a/y.slvs importing a/x.slvs
and copy a/ to b/, then loading b/y.slvs would load a/x.slvs, which
is rather surprising.
Before this commit, e.g. a 120° angle could be exported as its
supplementary 60° angle but it would still say 120° in the label.
After this commit, the right angle is selected in DXF-based software.
Similarly, it roundtrips through SolveSpace correctly.
This hint is not recommended for direct use by applications, and for
a good reason: it's very annoying. Moreover, what we want is not
"keep above" but rather "keep on the same layer as graphics window",
which is already achieved by setting window type to "utility"
on GNOME and Unity WMs, and by setting the transient window hint
for the text window on KDE WM.
This screws up window managers like fvwm, which don't respect
the ICCCM "Keep Above" flag. I don't remember why it's there and
it doesn't appear that removing it has any ill effect.
This is good practice and helps to catch bugs. Several changes
were made to accomodate the newly enabled warnings:
* -Wunused-function:
* in exposed/, static functions that were supposed to be inlined
were explicitly marked as inline;
* some actually unused functions were removed;
* -Wsign-compare: explicit conversions were added, and in
the future we should find a nicer way than aux* fields;
* -Wmissing-field-initializers: added initializers;
* -Wreorder: reordered properly;
* -Wunused-but-set-variable: remove variable.
-Wunused-parameter was turned off as enabling it would result in
massive amount of churn in UI code. Despite that, we should enable
it at some point as it has a fairly high SNR otherwise.
