Resolve #628: "TextView: spaces acting as non-breaking whitespace if :left- or :right-margin is set"

See merge request !236

We don't want to see those either.

We don't want to see any fallback rendering.
The current check was still letting some fallback
combinations through.

Based on work by Julian Sparber.

defaultvalue: Ignore more style properties that Adwaita overrides

See merge request !253

These broke once we switched away from Raleigh

Timm Bäder authored Jul 17, 2018 and Daniel Boles committed Jul 18, 2018

Use the proper gtkdoc syntax for signals.

The new api here was introduced in 3.24.

Wip/carlosg/controllers backport

See merge request !246

This is a GtkGesture done to deal with stylus events from drawing tablets.
Those have a special number of characteristics that extend a regular
pointer, so it makes sense to wrap that.

And handle GDK_FOCUS_CHANGE events in order to emit those.

Callers can use this function on a key-pressed/released signal
to find out the key event group, useful in a few places.

This event controller is meant to replace usage from key-press/release-event
handlers all through. Optionally it can be set a GtkIMContext, so interaction
is carried by the controller.

Matthias Clasen authored Jan 01, 2018 and Carlos Garnacho committed Jul 16, 2018

We have this information available in enter events,
and having it in the controller signal as well makes
porting easier.

Update existing users.

Matthias Clasen authored Dec 11, 2017 and Carlos Garnacho committed Jul 16, 2018

This can serve as a replacement for the legacy
event signals for enter/leave/motion notify.

Matthias Clasen authored Dec 26, 2017 and Carlos Garnacho committed Jul 16, 2018

We have a test that checks this, and it is the right thing to do.

There is a gtk_event_controller_scroll_set_flags() call that's meant
to be called after construction (eg. due to scrolledwindow relayouts
hiding/showing scrollbars). The property shouldn't be construct-only
for consistence.

Timm Bäder authored Oct 11, 2017 and Carlos Garnacho committed Jul 16, 2018

The > 1 meant it only emits the signal for -2/+2 steps.

This is a GtkEventController implementation to handle mouse
scrolling. It handles both smooth and discrete events and
offers a way for callers to tell their preference too, so
smooth events shall be accumulated and coalesced on request.

On capable devices, it can also emit ::scroll-begin and
::scroll-end enclosing all ::scroll events for a scroll
operation.

It also has builtin kinetic scrolling capabilities, reporting
the initial velocity for both axes after ::scroll-end if
requested.

The opaque region is only set when the background color is opaque. So
we need to do something about it when the background color changes.

However, in the case where a size allocation is going to happen, we
already do this update in size_allocate(), so in that case avoid doing
it twice.

HighContrast: Restore expander size

See merge request !210

Reverts part of Commit 25b67af3

The 'width' part of the commit is the cause of #628: requisition->width
is first set to priv->layout->width, which already includes
priv->left_border + priv->right_border. It's a bit labyrinthine, but
essentially:

*  layout->width is set in update_layout_size() (gtktextlayout.c line 992)
   as the maximum line width, and
*  the line width is set to display->width in gtk_text_layout_real_wrap()
   (gtktextlayout.c line 1183), and
*  display->width is set to text_pixel_width + h_margin + h_padding in
   gtk_text_layout_get_line_display() (gtktextlayout.c line 2584), and
*  h_margin + h_padding is the same as priv->left_border +
   priv->right_border.

Adding it again leads to an increase in the size-request, which
results in wider lines; rinse and repeat.

Expanders used to be 16px high. With the move from the gtk2 rendering
to gtk3 rendering they shrunk to 12px, making them hard to see, because
it's now the icon which is 16px high and the icon contains transparent
borders.

This makes the HighContrast theme use 24px icons instead, to restore
16px expanders. This may expander some containers a bit.

Closes #1046

Fix gdk_wayland_window_announce_csd

See merge request !221

The pseudoclasses work fine on the subnodes without having to also apply
`parent:class subnode`.

(A) Put a space in "scrolled window" like the other doc comments
(B) Say "i.e." rather than "ie."
(C) Fix grammar from "makes [...] exactly reaches" to "exactly reach"

Saying 'key + modifiers' is really weird, so reverse that, and explain
why there are 2 cited and what the difference between them is.