selectors, preserve their most recent size selection as faithfully
as possible. We do this by having a secondary size variable
indicating what they _intend_, so we can come back to their intended
size even after going through a font which doesn't include it.
[originally from svn r7947]
we can call it both when the drawing area changes size and when the
selected font changes. As a result, the preview pane doesn't start
off blank any more.
[originally from svn r7945]
them automatically. If the user selects an alias in the font
selector, they get that alias copied literally into the output font
name string; when they return to the font selector, the alias is
still selected. We still _can_ resolve aliases, but we only do it on
demand: double-clicking one in the list box will do the job.
[originally from svn r7944]
instead of alphabetical order. This is more than cosmetic: it's
important because the first one in the list is selected by default.
[originally from svn r7941]
latter require manual input to the Makefile, since the Pango
developers in their unbounded wisdom (that is, unbounded below)
didn't bother to start providing the PANGO_VERSION macros until
release 1.16 - ten releases _after_ everything I'm trying to check!
[originally from svn r7940]
sizable TODO at the top of gtkfont.c - but it's basically functional
enough to select fonts of both types, so I'm checking it in now
before I accidentally break it.
[originally from svn r7938]
explicitly deals with GdkFont out into a new module, behind a
polymorphic interface (done by ad-hoc explicit vtable management in
C). This should allow me to drop in a Pango font handling module in
parallel with the existing one, meaning that GTK2 PuTTY will be able
to seamlessly switch between X11 server-side fonts and Pango client-
side ones as the user chooses, or even use a mixture of the two
(e.g. an X11 font for narrow characters and a Pango one for wide
characters, or vice versa).
In the process, incidentally, I got to the bottom of the `weird bug'
mentioned in the old do_text_internal(). It's not a bug in
gdk_draw_text_wc() as I had thought: it's simply that GdkWChar is a
32-bit type rather than a 16-bit one, so no wonder you have to
specify twice the length to find all the characters in the string!
However, there _is_ a bug in GTK2's gdk_draw_text_wc(), which causes
it to strip off everything above the low byte of each GdkWChar,
sigh. Solution to both problems is to use an array of the underlying
Xlib type XChar2b instead, and pass it to gdk_draw_text() cast to
gchar *. Grotty, but it works. (And it'll become significantly less
grotty if and when we have to stop using the GDK font handling
wrappers in favour of going direct to Xlib.)
[originally from svn r7933]
