theme: Fix icon scaling

When painting the titlebar, button icons that aren't available in the
desired size need to be scaled. However the current code inverses the
scale factor, with the result that the adjusted icons are much worse
than the original icons, whoops.

This went unnoticed for a long time given that most icons are availa-
ble in the desired 16x16 size, and the most likely exceptions - window
icons - are not shown by default.

https://gitlab.gnome.org/GNOME/mutter/issues/23
This commit is contained in:
Egmont Koblinger 2018-03-01 17:08:41 +01:00 committed by Florian Müllner
parent 15b7b40ea8
commit 67bf936ef8
2 changed files with 6 additions and 6 deletions

View File

@ -446,12 +446,12 @@ meta_window_class_init (MetaWindowClass *klass)
obj_props[PROP_ICON] =
g_param_spec_pointer ("icon",
"Icon",
"96 pixel sized icon",
"Normal icon, usually 96x96 pixels",
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_props[PROP_MINI_ICON] =
g_param_spec_pointer ("mini-icon",
"Mini Icon",
"16 pixel sized icon",
"Mini icon, usually 16x16 pixels",
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
obj_props[PROP_DECORATED] =
g_param_spec_boolean ("decorated",

View File

@ -885,13 +885,13 @@ meta_frame_layout_draw_with_style (MetaFrameLayout *layout,
width = cairo_image_surface_get_width (surface) / scale;
height = cairo_image_surface_get_height (surface) / scale;
x = button_rect.x + (button_rect.width - width) / 2;
y = button_rect.y + (button_rect.height - height) / 2;
x = button_rect.x + (button_rect.width - layout->icon_size) / 2;
y = button_rect.y + (button_rect.height - layout->icon_size) / 2;
cairo_translate (cr, x, y);
cairo_scale (cr,
width / layout->icon_size,
height / layout->icon_size);
layout->icon_size / width,
layout->icon_size / height);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);