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monitor-config-manager: Verify that logical monitors are adjecent

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Logical monitors in a configuration must be adjecent to each other,
meaning there will be at least one pixel long side touching some other
logical monitor.

The exception to this is when there is only one logical monitor, which
cannot be adjecent to any other.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
This commit is contained in:
Jonas Ådahl
2017-02-08 10:32:33 +08:00
parent 1892a6b0c4
commit 2035f2f2e2
4 changed files with 94 additions and 0 deletions
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3
src/core/boxes-private.h
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@ -215,4 +215,7 @@ GList* meta_rectangle_find_nonintersected_monitor_edges (
const GList *monitor_rects,
const GSList *all_struts);
gboolean meta_rectangle_is_adjecent_to (MetaRectangle *rect,
MetaRectangle *other);
#endif /* META_BOXES_PRIVATE_H */

23
src/core/boxes.c
View File

@ -2013,3 +2013,26 @@ meta_rectangle_find_nonintersected_monitor_edges (
return ret;
}
gboolean
meta_rectangle_is_adjecent_to (MetaRectangle *rect,
MetaRectangle *other)
{
int rect_x1 = rect->x;
int rect_y1 = rect->y;
int rect_x2 = rect->x + rect->width;
int rect_y2 = rect->y + rect->height;
int other_x1 = other->x;
int other_y1 = other->y;
int other_x2 = other->x + other->width;
int other_y2 = other->y + other->height;
if ((rect_x1 == other_x2 || rect_x2 == other_x1) &&
!(rect_y2 <= other_y1 || rect_y1 >= other_y2))
return TRUE;
else if ((rect_y1 == other_y2 || rect_y2 == other_y1) &&
!(rect_x2 <= other_x1 || rect_x1 >= other_x2))
return TRUE;
else
return FALSE;
}