Mac only, as mac supports translucent brushes by default.
wxWidgets makes using a wxDC and wxGraphicContext at the same time
complex and slow. Hence just for mac.
... Make all line drawing go through our AColor which wraps the wxDC
line-drawing functions.
Despite what wxWidgets documentation says, the functions still don't
consistently include the first point and omit the last point of a line. I
observed inclusion of both on Mac, while on Windows, omission sometimes of the
first point instead of the last.
Discrepancies could be observed in 2.3.0 between Windows and Mac, using the
Window magnifier or command+alt+ +, zooming in closely on the ends of the
shadow lines below and right of tracks, or at the bottom-right corners of the
bevels drawn around vertical rulers.
So where there is an observable one-pixel difference of drawing between
platforms, there is the question, which was the intent when the drawing code
was written? Should the coordinates be corrected by one or not?
I reviewed each case and used my judgment.
Most of the calls are in drawing rulers. Major tick lines were drawn five
pixels long, and minor, three, on Mac. I keep this behavior, but you might
argue for making them four and two.
On the other hand the drawing of ruler grid lines, which you can see in
the equalization and frequency analysis windows, did need a one-pixel correction
to avoid straying out of bounds.
Provides a clear boundary between scrub ruler and quick select ruler, even if the theme colours have been warped to be very similar.
Thanks to Gale for spotting this problem on Mac.
This fixes the problem on GTK where the text was unreadable when
using a "dark" theme.
And fixes the double display of the real tooltip and the tip panel
being displayed at the same time on GTK and OSX. It seems that
the "disabling/reenabling" of tooltips doesn't take affect right
away anymore...maybe it never did.
This relies on three new nyquist scripts to actually do the editing. The peak-snapping code in FrequencyWindow has been extracted into a new class, SpectrumAnalyst, to provide peak-snapping in spectrogram too.
final but it's a big improvement. Reversed a couple changes from
original indication scheme that are no longer necessary. Unfortunately
it's really hard to remove colors from AllThemeResources.h.
