Make a single gsk_reload_font helper that can tweak both
scale and font options, so we can ensure that our scaled
font has hint-metrics turned off (pango pays attention to
hint metrics when sizing and rendering hex boxes, and that
hurts us.
Make this API public so that foreign "text" widgets (e.g. VteTerminal)
have a chance to integrate this logic into their own event controllers,
without having to craft the behavior of their own gestures around the
built-in IM gesture.
In order to make it most useful for other backends, a GdkEvent argument
and a boolean return value were added. This might be useful information
for other platforms than Wayland, e.g. all investigation seems to hint
that on Windows only the a11y keyboard is available programmatically
via app launching, so the IM method implementation would need to set
up its own policies for showing up the OSK (e.g. on touch events).
This makes the conditions in cursor_blinks() more similar to
what GtkText does, and fixes adds the same notify handler for
has-focus, so we start blinking when requires. Crucially, we
also no longer try to blink when unmapped, which should fix
a epiphany crash.
Fixes: #6515
This was showing up as crashes in the testsuite, where a later
test runs the mainloop, and that causes Wayland to claim the
primary selection on a widget that is already disposed.
This is a tricky topic, because it can make the clip bounds grow, so
previously we were trying to be careful.
However, this can cause perfectly trivial intersections to fail that are
caused by redraw diff regions.
And in the worst case, that means we offscreen in places where we
absolutely do not want to offscreen - in subtrees with subsurface nodes.
Fixes#6499
CLIP_TYPE_NONE is valid if the clip is implemented by the scissor rect.
We always have a scissor rect and there's no way to draw outside of it.
In theory that means we can reset the clip to NONE at any point we
wish if we know nodes are contained inside a certain pixel-aligned
rectangle we can clip.
In practice that's probably quite hard...
Keep at least 1 second of frame timings.
This is necessary for 2 reasons - a real one and a fun one.
First, with the difference in monitor refresh rates, we can have 48Hz
latops as well as 240Hz high refresh rate monitors. That's a factor of
4, and tracking frame rates in both situations reliably is kind of hard
- either we track over too many frames and the fps take a lot of time to
adjust, or we track too little time and the fps fluctuate wildly.
Second, when benchmarking with GDK_DEBUG=no-vsync with a somewhat fast
renderer (*cough*Vulkan*cough*) frame rates can go into insane dimensions
and only very few frames are actually getting presentation times
reported. So to report accurate frame rates in those cases, we need a
*very* large history that can be 1000s of times larger than the usual
history. And that's just a waste for normal usage.
Previously, our reported fps numbers could be too low when the start
timings weren't complete. In that case we would use the frame time, but
the frame time is the time when the frame was rendered, which is quite a
few milliseconds before it is presented.
So in that case we would not report the difference in presentation
times, but the difference from start of rendering. However, those times
are way more variable and can smear over the whole frame because they
depend on when we received the frame callbacks to high priority GSources
as well as our own render time predictions.
This happened in particular with GDK_DEBUG=no-vsync and could report
number that are off by a factor of 2.
Now we skip any incomplete frames, because those frames never have
presentation times reported. This makes it theoretically more likely to
not being able to report fps at all, but I'd rather have no fps than fps
off by a factor of 2.
The fps used to get garbled when hitting >=10,000fps. That's quite
unlikely to happen for long periods, but it can happen for short bursts
(like after alt-tabbing).
So just handle more digits to make the display survive those corner cases.
Previously, we drew the same width no matter how many digits the fps
number had, which left a lot of empty space.
But we can use some quite simple math to avoid that by just shrinking
the background by the width of the non-rendered glyphs.
We don't really expect backends to make this settable, and
fractional scaling makes this more complicated anyway. The
scale values can be seen on the General tab, for the monitor,
and on the surface for each toplevel.
A small step towards respecting our own deprecations. While we
are at it, make the control only select the font family, since
that is the intention of the font setting. Font style and size
are under the control of the css, and we have a font scale slider
right below to influence font size globally.
