gboolean
gsk_vulkan_clip_intersect_rounded_rect (GskVulkanClip *dest,
const GskVulkanClip *src,
const GskRoundedRect *rounded)
{
if (gsk_rounded_rect_contains_rect (rounded, &src->rect.bounds))
{
gsk_vulkan_clip_init_copy (dest, src);
return TRUE;
}
if (!graphene_rect_intersection (&rounded->bounds, &src->rect.bounds, NULL))
{
dest->type = GSK_VULKAN_CLIP_ALL_CLIPPED;
return TRUE;
}
switch (src->type)
{
case GSK_VULKAN_CLIP_ALL_CLIPPED:
dest->type = GSK_VULKAN_CLIP_ALL_CLIPPED;
break;
case GSK_VULKAN_CLIP_NONE:
dest->type = gsk_rounded_rect_is_circular (&dest->rect) ? GSK_VULKAN_CLIP_ROUNDED_CIRCULAR : GSK_VULKAN_CLIP_ROUNDED;
gsk_rounded_rect_init_copy (&dest->rect, rounded);
break;
case GSK_VULKAN_CLIP_RECT:
if (graphene_rect_contains_rect (&src->rect.bounds, &rounded->bounds))
{
dest->type = gsk_rounded_rect_is_circular (&dest->rect) ? GSK_VULKAN_CLIP_ROUNDED_CIRCULAR : GSK_VULKAN_CLIP_ROUNDED;
gsk_rounded_rect_init_copy (&dest->rect, rounded);
return TRUE;
}
/* some points of rect are inside src's rounded rect,
* some are outside. */
/* XXX: If the 2 rects don't intersect on rounded corners,
* we could actually compute a new clip here.
*/
return FALSE;
case GSK_VULKAN_CLIP_ROUNDED_CIRCULAR:
case GSK_VULKAN_CLIP_ROUNDED:
/* XXX: improve */
return FALSE;
default:
g_assert_not_reached ();
return FALSE;
}
return TRUE;
}
static void
gsk_vulkan_clip_init_copy (GskVulkanClip *self,
const GskVulkanClip *src)
{
self->type = src->type;
gsk_rounded_rect_init_copy (&self->rect, &src->rect);
}
void
gtk_snapshot_push_rounded_clip (GtkSnapshot *snapshot,
const GskRoundedRect *bounds,
const char *name,
...)
{
GskRoundedRect *real_bounds;
cairo_region_t *clip;
cairo_rectangle_int_t rect;
char *str;
real_bounds = g_slice_new (GskRoundedRect);
gsk_rounded_rect_init_copy (real_bounds, bounds);
gsk_rounded_rect_offset (real_bounds, snapshot->state->translate_x, snapshot->state->translate_y);
if (name)
{
va_list args;
va_start (args, name);
str = g_strdup_vprintf (name, args);
va_end (args);
}
else
str = NULL;
rectangle_init_from_graphene (&rect, &real_bounds->bounds);
if (snapshot->state->clip_region)
{
clip = cairo_region_copy (snapshot->state->clip_region);
cairo_region_intersect_rectangle (clip, &rect);
}
else
{
clip = cairo_region_create_rectangle (&rect);
}
snapshot->state = gtk_snapshot_state_new (snapshot->state,
str,
clip,
snapshot->state->translate_x,
snapshot->state->translate_y,
gtk_snapshot_collect_rounded_clip,
real_bounds);
cairo_region_destroy (clip);
}
