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texture-cache: Fall back to actor size for bound textures

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With StImageContent, the meaning of passing -1 as size parameter changed
from "load the image at its preferred size" to "abort the session". It
is therefore no longer possible to just load the image and then have it
scaled by applying a CSS size to the texture's parent.

Setting the size from CSS is useful though, so to still allow that, fall
back to the actor's size (which can be determined by the style).

https://gitlab.gnome.org/GNOME/gnome-shell/issues/1027
This commit is contained in:
Florian Müllner 2019-03-08 14:08:27 +01:00
parent 6f794738e8
commit d86d3bbe54
1 changed files with 5 additions and 1 deletions
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6
src/st/st-texture-cache.c
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@ -700,10 +700,14 @@ st_texture_cache_reset_texture (StTextureCachePropertyBind *bind,
{
g_autoptr(ClutterContent) image = NULL;
g_autoptr(GError) error = NULL;
int size = bind->size;
if (size < 0)
clutter_actor_get_preferred_width (bind->actor, -1, NULL, (float *)&size);
image = clutter_actor_get_content (bind->actor);
if (!image || !CLUTTER_IS_IMAGE (image))
image = st_image_content_new_with_preferred_size (bind->size, bind->size);
image = st_image_content_new_with_preferred_size (size, size);
else
g_object_ref (image);