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GtkIconTheme: Make spinners scale in hi-dpi

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The Adwaita icon theme ships spinners in a scalable directory
with MaxSize=32 and Scale=1. One way to make them scale up in
hi-dpi would be to add an @2 directory with MaxSize=32 and Scale=2,
but that directory would also be consulted in non hi-dpi situations
and give us an effective spinner max size of 64.

Instead, treat svg icons implicitly as hi-dpi, and scale them
up to MaxSize * 2 when in hi-dpi.
This commit is contained in:
Matthias Clasen 2014-07-17 00:59:34 -04:00
parent a80e77ff95
commit f3ef3165df
1 changed files with 16 additions and 5 deletions
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21
gtk/gtkicontheme.c
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@ -3768,6 +3768,7 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
gint image_width, image_height, image_size;
gint scaled_desired_size;
GdkPixbuf *source_pixbuf;
gdouble dir_scale;
if (icon_info->pixbuf)
{
@ -3783,6 +3784,8 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
scaled_desired_size = icon_info->desired_size * icon_info->desired_scale;
dir_scale = icon_info->dir_scale;
/* In many cases, the scale can be determined without actual access
* to the icon file. This is generally true when we have a size
* for the directory where the icon is; the image size doesn't
@ -3796,12 +3799,20 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
icon_info->scale = icon_info->unscaled_scale;
else if (icon_info->dir_type == ICON_THEME_DIR_SCALABLE)
{
if (scaled_desired_size < icon_info->min_size * icon_info->dir_scale)
/* For svg icons, treat scalable directories as if they had
* a Scale=<desired_scale> entry. In particular, this means
* spinners that are restriced to size 32 will loaded at size
* up to 64 with Scale=2.
*/
if (icon_info->is_svg)
dir_scale = icon_info->desired_scale;
if (scaled_desired_size < icon_info->min_size * dir_scale)
icon_info->scale = (gdouble) icon_info->min_size / (gdouble) icon_info->dir_size;
else if (scaled_desired_size > icon_info->max_size * icon_info->dir_scale)
else if (scaled_desired_size > icon_info->max_size * dir_scale)
icon_info->scale = (gdouble) icon_info->max_size / (gdouble) icon_info->dir_size;
else
icon_info->scale = (gdouble) scaled_desired_size / (icon_info->dir_size * icon_info->dir_scale);
icon_info->scale = (gdouble) scaled_desired_size / (icon_info->dir_size * dir_scale);
}
/* At this point, we need to actually get the icon; either from the
@ -3819,7 +3830,7 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
if (icon_info->forced_size)
size = scaled_desired_size;
else
size = icon_info->dir_size * icon_info->dir_scale * icon_info->scale;
size = icon_info->dir_size * dir_scale * icon_info->scale;
source_pixbuf = gdk_pixbuf_new_from_resource_at_scale (icon_info->filename,
size, size, TRUE,
&icon_info->load_error);
@ -3849,7 +3860,7 @@ icon_info_ensure_scale_and_pixbuf (GtkIconInfo *icon_info)
if (icon_info->forced_size)
size = scaled_desired_size;
else
size = icon_info->dir_size * icon_info->dir_scale * icon_info->scale;
size = icon_info->dir_size * dir_scale * icon_info->scale;
source_pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream,
size, size,
TRUE, NULL,