We now have GTK_CSS_AFFECTS_CONTENT for properties that have an effect
on content rendering.
Using GTK_CSS_AFFECTS_ICON is wrong for icon-transform and icon-filter
as they don't change the icon, just how the icon is rendered, so we use
GTK_CSS_AFFECTS_CONTENT for those.
We also introduce GTK_CSS_AFFECTS_POSTEFFECT for opacity and filter -
properties that affect the whole drawing of the widget by applying an
effect after everything is said and done.
It's using a GtkCssPositionValue, even though that name is wrong. But
the functionality of managing 2 lengths is exactly what we want.
Nobody is using this yet.
This API was only used in GtkModifierStyle and GtkStyleProperties and
they are both on their way out.
CSS properties must now be set using strings via the regular parser API.
CSS supports blend modes, in which a series of layers are
merged together according to the given operation or set of
operations.
Support for blend modes landed on Cairo, which exposes all
the commons and also the exquisites blend modes available.
Adding support for blend modes, then, is just a matter of
using the available Cairo operations.
This patch adds the background-blend-mode CSS enum property,
and adapts the background rendering code to blend the backgrounds
using the available blend modes when they're set.
https://bugzilla.gnome.org/show_bug.cgi?id=768305
Things like color affect symbolic icons, but not colored icons, while
other css properties like -gtk-icon-effect affect colored icons, but not
symbolic ones.
Add a query implementation to opacity property. Also fix the assert in
gtk_css_style_property_register() to allow registering properties with
query but without assign function.
https://bugzilla.gnome.org/show_bug.cgi?id=760933
This property is defined in http://www.w3.org/TR/css3-ui/#caret-color.
We also add a -gtk-secondary-caret-color property, since GTK+ has
supported differently colored split cursors in the past. Unlike
CSS, we don't support the weakly defined auto keyword, and just
use currentColor as the initial value.
This borrows heavily from the CSS4 fonts draft's font-palette, currently
found at https://drafts.csswg.org/css-fonts-4/#font-palette-control
The palette is mainly meant to trigger invalidations when colors used for
symbolic icons change, to potentially allow extending supported colors
in symbolic icons and to recolor all colors of a symbolic icon, not just
the main one.
The syntax for the property goes like this:
Name: -gtk-icon-palette
Value: default | name <color> [ , name <color> ]*
Initial: default
Applies to: all elements with icons
Inherited: yes
Animatable: yes, each color animated separately
The property defines a list of named colors to be used when looking up
icons. If a name is not defined, the value of the current "color"
property is used. Which names are relevant depends on the icons in use.
Currently symbolic icons make use of the names "success", "warning" and
"error".
"default" is the current behavior of the GTK when coloring symbolic
icons and is equal to the string
success @success_color, warning @warning_color, error @error_color
Animation is crudely implemented by animating colors that are in both
palettes that are animated and otherwise keeping the color from the
palette that defined it. Note that this can cause a sharp cut at the
beginning or end of the animation when the color goes away and will
therefore be replaced with the color property.
You can see an example of animations at
http://gfycat.com/CautiousPeacefulIaerismetalmark
This property is necessary to ensure widgets automatically update after
the text scale factor is changed desktop-wide.
And if I'm already doing a property like this, I can make it
overridable. So now you can override the dpi per-widget with CSS like
GtkSwitch {
-gtk-dpi: 48;
}
if you want to debug things.
Long-term, we want to get rid of this property and insist on dpi being
96 everywhere and people can change the font size to get larger fonts.
The property is useless to set (it only allows 'initial', 'inherit' and
'unset' as values), but it is used to track changes to the icon theme.
And as such, it can ensure that widgets can track when they need to
reload icons.
https://bugzilla.gnome.org/show_bug.cgi?id=743341
The order in which properties are defined depends on the order in which
they are computed. And that means that properties can only depend on
other properties that are defined before them.
The next patches will need this reordering.
Changing font size does not cause widgets to update their size
properly anymore, since we forgot an invalidation flag. The
problem can be observed e.g. by running gtk3-demo and calling
gsettings set org.gnome.desktop.interface font-name "Cantarell 22"
... and make it the default. This takes over the meaning from "none" for
this property in that it draws the fallback builtin image.
"none" now literally means no image will be drawn.
This fixes shadows that are animated not updating the clip of the widget
they are drawn on. An example of this are the buttons in the CSS shadows
example in gtk-demo.
Reftest included
