This is to go along with the newly introduced GdkDrop.
This commit includes the necessary updates to the X11, Wayland
and Broadway backends. Other backends have to be updated separately.
Instead of allowing people to pass a uint user-data, insist on them
comparing mime types.
The user data was a uint instead of a pointer anyway, so uniqueness
could not be guaranteed and it caused more issues than it was worth.
And that's ignoring the fact that it basically wasn't used.
Instead, add a function gtk_image_set_icon_size() for the cases where
overriding the icon size is necessary.
Treat icon sizes the same way as pixel sizes, too. So gtk_image_clear()
no longer unsets the icon size.
Instead of returning the icon size with them, make
gtk_image_get_icon_name() and gtk_image_get_gicon() only return the icon
itself.
As a benefit, we can turn them into regular getters that return values
instead of requiring out parameters.
Instead, provide gtk_image_get_icon_size() to query the icon size.
When making mockups for GNOME apps in Inkscape, looking for symbolic
icons is a common task. Searching for icons in the file system is clumsy,
and icon-browser provides a much better interface for finding them.
However, currently there is no way to insert the symbolic icons as SVG
directly from icon-browser, so right now it is only useful for finding
the name.
This patch adds a sixth column to the modal window that appears when
clicking a symbolic icon. The icon in this column is labeled "scalable",
and dragging it onto another window results in the vector icon URI being
inserted.
This enables a much simpler workflow when designing with symbolic icons.
https://bugzilla.gnome.org/show_bug.cgi?id=778930
Instead of slavishly following the naming spec, group the icons
into categories that are more likely to be useful for application
developers. Based on input from Allan Day and Jakup Steiner.
These non-standard icons were dropped from Adwaita. Eventually,
the icon-browser code should be changed to show all standard
icons + whatever is actually in the icon theme, instead of
hardcoding a list of non-standard names.
