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frames.c: Simplify cached area subtraction code

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Because we store the affected rectangle in the piece, we can just
subtract it and don't need any complicated computations.

https://bugzilla.gnome.org/show_bug.cgi?id=630203
This commit is contained in:
Benjamin Otte 2010-09-20 21:14:49 +02:00
parent a0ffe71db3
commit 741d2b761a
1 changed files with 5 additions and 18 deletions
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23
src/ui/frames.c
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@ -2274,27 +2274,12 @@ subtract_client_area (MetaRegion *region, MetaUIFrame *frame)
meta_region_destroy (tmp_region);
}
static void
subtract_from_region (MetaRegion *region, GdkDrawable *drawable,
gint x, gint y)
{
GdkRectangle rect;
MetaRegion *reg_rect;
gdk_drawable_get_size (drawable, &rect.width, &rect.height);
rect.x = x;
rect.y = y;
reg_rect = meta_region_new_from_rectangle (&rect);
meta_region_subtract (region, reg_rect);
meta_region_destroy (reg_rect);
}
static void
cached_pixels_draw (CachedPixels *pixels,
GdkWindow *window,
MetaRegion *region)
{
MetaRegion *region_piece;
cairo_t *cr;
int i;
@ -2310,8 +2295,10 @@ cached_pixels_draw (CachedPixels *pixels,
gdk_cairo_set_source_pixmap (cr, piece->pixmap,
piece->rect.x, piece->rect.y);
cairo_paint (cr);
subtract_from_region (region, piece->pixmap,
piece->rect.x, piece->rect.y);
region_piece = meta_region_new_from_rectangle (&piece->rect);
meta_region_subtract (region, region_piece);
meta_region_destroy (region_piece);
}
}