Also removed a bogus FIXME comment which might have been true
a long time ago. Clarification: the "domain" attribute specified
in the builder script overrides any domain previously set with
gtk_builder_set_translation_domain(), so the translation of items
here is perfectly correct and does not need to be fixed.
Bring back need_default_size. We need it to preserve this
documented behavior:
The default size of a window only affects the first time a window is
shown; if a window is hidden and re-shown, it will remember the size
it had prior to hiding, rather than using the default size.
With this patch, all of the window sizing tests in
gtk/tests/window pass again.
gtk_widget_preferred_size() is only useful if you want to quickly port a
widget from GTK2 sizing code to GTK3 but does not properly work with
height-for-width as used in GTK. So we don't want to encourage people to
use it. In particular we want people to convert to height-for-width
before adding baseline support to their widgets.
GtkMenu calls gtk_widget_size_allocate on its GtkWindow during
gtk_menu_popup_for_device if the menu has not been realised. This can cause the
allocation of the GtkWindow and the size of the GdkWindow to become out of sync
because a top level GtkWindow does not attempt to re-size the GdkWindow when
its allocation is set.
https://bugzilla.gnome.org/show_bug.cgi?id=695120
We should only draw the cross-fade on the bin window, not doing this
was causing us to draw it multiple times using ADD which resulted
in weird colors.
This makes iterating over the children a lot faster, as we're
not doing lots of intra-library calls and type checks. We're still
in some sence O(n^2) since we iterate over each child window for each
widget, but the profiles look much better.
We register an invalidate handler on the bin window to get told
of child widget invalidations, although we manually need to discard
invalidates from the scroll operation.
Additionally we invalidate all of the pixel cache whenever
the TreeView itself is queue_draw()n to handle e.g. style (bg)
changes, or changes due to model changes causing queue_draw() in
the tree view.
Since gdk_window_move() no longer uses XCopyArea all scrolling
now re-renders everything in the window. To get performance
back we use a GtkPixelCache to store already drawn children,
and we when we expose the viewport we just blit the
offscreen to the right place.
GtkPixelCache is a helper utility that lets you implement
faster scrolling of a viewport of a canvas by using an
offscreen pixmap cache.
You call _gtk_pixel_cache_draw with a callback function that
does the drawing, and additionally you specify the size and the
position of the viewport in the widget, and the position and size
of the canvas wrt the viewport. The callback will be called to
draw on an offscreen surface, and the surface will be drawn
on the window. The next time you do the same, any already drawn
pieces of the surface are re-used from the offscreen and need
not be rendered again.
If things inside the canvas change you need to call
_gtk_pixel_cache_invalidate to tell the cache about this.
Some other details:
* The offscreen surface is generally a bit larger than
the viewport, so scrolling a small amount can often
be done without redrawing children.
* If the canvas is not larger than the viewport no
offscreen surface is used.
GtkPixelCache: Make sure we always copy using SOURCE
We were using OVER for the first copy (from source to group surface.
GtkPixelCache: Fix x/y typos
GtkPixelCache: Allow NULL for invalidate region
gtkpixelcache: Use CONTENT_COLOR for solid bg windows
Since widgets now cache drawn state we allow them to override
queue_draw_region to detect when some region of the widget
should be redrawn. For instance, if a widget draws the
background color in a pixel cache we will need to invalidate
that when the style context changes which queues a repaint.
We do the save/restore when emitting ::draw rather than in a custom
marshaller, as this saves an extra stack frame, which is helpfull now
that we do painting fully recursive. This is also likely to save a few
cycles.
We now consider non-native windows non-opaque, which means any invalid
area in a subwindow will also be invalid all the way up to the nearest
native windows. We take advantage of this by ignoring all expose events
on non-native windows (which typically means just the toplevel) and instead
propagating down the draw() calls to children directly via
gtk_container_propagate_draw.
This is nice as it means we always draw widgets the same way, and it
will let us do some interesting ways in the future.
We also clean up the GtkWidget opacity handling as we can now always
rely on the draing happening via cairo.
We can't really just draw by walking down the widget hierarchy, as
this doesn't get the clipping right (so e.g. widgets doing cairo_paint
may draw outside the expected gdkwindow subarea) nor does it let
us paint window backgrounds.
So, we now do multiple draws for each widget, once for each GdkWindow,
although we still do it on the same base cairo_t that we get for the
toplevel native window. The difference is only the clipping, the rendering
order, and which other widgets we propagate into.
We also collect all the windows of a widget so we can expose them inside
the same opacity group if needed.
NOTE: This change neuters gtk_widget_set_double_buffered for
widgets without native windows. Its impossible to disable
the double buffering in this model.
Turns out our blurring function isn't very nice, it has a lot
of energy past the blur radius, so clipping at exactly the
blur radius causes ugly gradient stops. This just adds 4
extra pixels of slop, which makes this better in most cases.
We split up the rendering of blurred shadows into 9 parts, the
corners, the sides and the rest. This lets us only blur the "blurry"
part, and it lets us completely skip blurry parts that are fully
clipped.
As per css3-background 7.2. Drop Shadows: the ‘box-shadow’ property:
An outer box-shadow casts a shadow as if the border-box of the element
were opaque. The shadow is drawn outside the border edge only: it
is clipped inside the border-box of the element.
Also verified vs firefox behaviour.
glib-mkenums is not currently clever enough to know which version an
enum type was added in, so just mark all the _get_type() functions as
available in all versions.
This avoids an evil trap when doing MAX (..., ... - 2 * border_width)
and the expression on the right gets promoted to unsigned, instead
of going negative as you would expect.
https://bugzilla.gnome.org/show_bug.cgi?id=699633
These tests check that a toplevel window ends up with the expected
size after setting default sizes or resizing. It currently passes
on X, but fails with client-side decorations under X and Wayland.
It's not necessary anymore because gdk_display_manager_get() always
succeeds and the value is independant of when it was called as it's no
longer backend specific.
AtkSelection requires that the immediate children of the object are the
selectable items. The combobox however is implemented with just 1 child:
The popup menu.
The popup menu is implementing the selectable interface.
Test are updated to reflect this change.
The gtk-launch tool can be build without gio-unix (although it
will not really do much without an alternative implementation for
g_desktop_app_info).
So there is no need to not build gtk-launch anymore.
This reverts commit 9a1235bf0d.
https://bugzilla.gnome.org/show_bug.cgi?id=682824
Pointed out in https://bugzilla.gnome.org/show_bug.cgi?id=699016
The fix here is slightly different. We make
_gtk_builder_parser_translate return a const char * instead of
a dup'ed string, and fix up the callers.
These tests may have some assumptions on reasonable window manager
behaviour. For now, we just test that the default size of the
window ends up as the allocated size of the content. This test
currently fails with client-side decorations, because we are
not properly discriminating between overall window size and
content size.
Cache the style contexts for the up and down panels, instead of recreating
them each time they are drawn or size requested. GtkSpinButtons were
many times slower to draw than other widgets because of the constant
style matching.
https://bugzilla.gnome.org/show_bug.cgi?id=698682
If a subclass (say a child of GtkButton) overrides the non-baseline
size request methods we need to call these, rather than the new
get_height_and_baseline_for_width method.
In order to handle this we make the default for this method to be
NULL, and instead check at runtime which method to call. If any
non-baseline vfunc has changed in a class but the baseline one
hasn't, then we can't use the baseline one.
We now report any baselines from the child, and allocate it.
Also, in the case of a baselign aligned child we ignore yscale/yalign
as that is not supportable.
Report a baseline based height and baseline whenever there
are children with ALIGN_BASELINE.
Assign baseline to childen in size_allocate. Either the one inherited
from the parent if set, or otherwise calculate one based on any
ALIGN_BASELINE children.
This modifies the size machinery in order to allow baseline support.
We add a new widget vfunc get_preferred_height_and_baseline_for_width
which queries the normal height_for_width (or non-for-width if width
is -1) and additionally returns optional (-1 means "no baseline")
baselines for the minimal and natural heights.
We also add a new gtk_widget_size_allocate_with_baseline() which
baseline-aware containers can use to allocate children with a specific
baseline, either one inherited from the parent, or one introduced due
to requested baseline alignment in the container
itself. size_allocate_with_baseline() works just like a normal size
allocation, except the baseline gets recorded so that the child can
access it via gtk_widget_get_allocated_baseline() when it aligns
itself.
There are also adjust_baseline_request/allocation similar to the
allocation adjustment, and we extend the size request cache to also
store the baselines.
Setting this means baseline aware containers should align the widget
according to the baseline. For other containers this behaves like
FILL.
In order to not suprise old code with a new enum value we always
return _FILL for _BASELINE unless you specifically request it via
gtk_widget_get_valign_with_baseline().
Instead of having three different boxes and style classes, we can just
get away with the regular background box, plus a window-frame, which
contains the external frame, together with the window drop shadows.
GtkWindow now has special code to ensure the backing actual window is
allocated big enough to accomodate the shadows (using the shadow size
calculations introduced in the previous commit). We also use the margin
value to determine the size of the invisible borders (which can then be
different than the shadow).
