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LibWeb: Add option to allocate new bitmap for BorderRadiusCornerClipper

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This will be needed for overflow: hidden, that clips things which may
themselves use the BorderRadiusCornerClipper.
This commit is contained in:
MacDue 2022-07-04 20:43:40 +01:00 • committed by Andreas Kling
parent 13b4d91f66
commit 9a97adf121
2 changed files with 15 additions and 5 deletions
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13
Userland/Libraries/LibWeb/Painting/BorderRadiusCornerClipper.cpp
View file

@ -10,7 +10,7 @@
namespace Web::Painting {
ErrorOr<BorderRadiusCornerClipper> BorderRadiusCornerClipper::create(Gfx::IntRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip)
ErrorOr<BorderRadiusCornerClipper> BorderRadiusCornerClipper::create(Gfx::IntRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip, UseCachedBitmap use_cached_bitmap)
{
VERIFY(border_radii.has_any_radius());
@ -28,9 +28,14 @@ ErrorOr<BorderRadiusCornerClipper> BorderRadiusCornerClipper::create(Gfx::IntRec
top_right.vertical_radius + bottom_right.vertical_radius)
};
auto corner_bitmap = get_cached_corner_bitmap(corners_bitmap_size);
if (!corner_bitmap)
return Error::from_errno(ENOMEM);
RefPtr<Gfx::Bitmap> corner_bitmap;
if (use_cached_bitmap == UseCachedBitmap::Yes) {
corner_bitmap = get_cached_corner_bitmap(corners_bitmap_size);
if (!corner_bitmap)
return Error::from_errno(ENOMEM);
} else {
corner_bitmap = TRY(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRA8888, corners_bitmap_size));
}
CornerData corner_data {
.corner_radii = {

7
Userland/Libraries/LibWeb/Painting/BorderRadiusCornerClipper.h
View file

@ -18,7 +18,12 @@ enum class CornerClip {
class BorderRadiusCornerClipper {
public:
static ErrorOr<BorderRadiusCornerClipper> create(Gfx::IntRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip = CornerClip::Outside);
enum class UseCachedBitmap {
Yes,
No
};
static ErrorOr<BorderRadiusCornerClipper> create(Gfx::IntRect const& border_rect, BorderRadiiData const& border_radii, CornerClip corner_clip = CornerClip::Outside, UseCachedBitmap use_cached_bitmap = UseCachedBitmap::Yes);
void sample_under_corners(Gfx::Painter& page_painter);
void blit_corner_clipping(Gfx::Painter& page_painter);